./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor588076391

<...>
d-self/fail-nth", O_RDWR) = 4
[pid 19503] write(4, "78", 2)           = 2
[pid 19503] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19503] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19503] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19503] exit_group(0)               = ?
[pid 19503] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19503, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19504
./strace-static-x86_64: Process 19504 attached
[pid 19504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19504] setpgid(0, 0)               = 0
[pid 19504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19504] write(3, "1000", 4)         = 4
[pid 19504] close(3)                    = 0
[pid 19504] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19504] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19504] write(4, "78", 2)           = 2
[pid 19504] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19504] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19504] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19504] exit_group(0)               = ?
[pid 19504] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19504, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19505
./strace-static-x86_64: Process 19505 attached
[pid 19505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19505] setpgid(0, 0)               = 0
[pid 19505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19505] write(3, "1000", 4)         = 4
[pid 19505] close(3)                    = 0
[pid 19505] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19505] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19505] write(4, "78", 2)           = 2
[pid 19505] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19505] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19505] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19505] exit_group(0)               = ?
[pid 19505] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19505, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19506
./strace-static-x86_64: Process 19506 attached
[pid 19506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19506] setpgid(0, 0)               = 0
[pid 19506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19506] write(3, "1000", 4)         = 4
[pid 19506] close(3)                    = 0
[pid 19506] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19506] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19506] write(4, "78", 2)           = 2
[pid 19506] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19506] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19506] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19506] exit_group(0)               = ?
[pid 19506] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19506, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19507
./strace-static-x86_64: Process 19507 attached
[pid 19507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19507] setpgid(0, 0)               = 0
[pid 19507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19507] write(3, "1000", 4)         = 4
[pid 19507] close(3)                    = 0
[pid 19507] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19507] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19507] write(4, "78", 2)           = 2
[pid 19507] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19507] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19507] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19507] exit_group(0)               = ?
[pid 19507] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19507, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19508 attached
, child_tidptr=0x555555af35d0) = 19508
[pid 19508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19508] setpgid(0, 0)               = 0
[pid 19508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19508] write(3, "1000", 4)         = 4
[pid 19508] close(3)                    = 0
[pid 19508] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19508] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19508] write(4, "78", 2)           = 2
[pid 19508] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19508] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19508] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19508] exit_group(0)               = ?
[pid 19508] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19508, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19509
./strace-static-x86_64: Process 19509 attached
[pid 19509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19509] setpgid(0, 0)               = 0
[pid 19509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19509] write(3, "1000", 4)         = 4
[pid 19509] close(3)                    = 0
[pid 19509] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19509] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19509] write(4, "78", 2)           = 2
[pid 19509] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19509] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19509] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19509] exit_group(0)               = ?
[pid 19509] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19509, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19510 attached
, child_tidptr=0x555555af35d0) = 19510
[pid 19510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19510] setpgid(0, 0)               = 0
[pid 19510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19510] write(3, "1000", 4)         = 4
[pid 19510] close(3)                    = 0
[pid 19510] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19510] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19510] write(4, "78", 2)           = 2
[pid 19510] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19510] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19510] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19510] exit_group(0)               = ?
[pid 19510] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19510, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19511 attached
, child_tidptr=0x555555af35d0) = 19511
[pid 19511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19511] setpgid(0, 0)               = 0
[pid 19511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19511] write(3, "1000", 4)         = 4
[pid 19511] close(3)                    = 0
[pid 19511] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19511] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19511] write(4, "78", 2)           = 2
[pid 19511] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19511] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19511] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19511] exit_group(0)               = ?
[pid 19511] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19511, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19512 attached
, child_tidptr=0x555555af35d0) = 19512
[pid 19512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19512] setpgid(0, 0)               = 0
[pid 19512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19512] write(3, "1000", 4)         = 4
[pid 19512] close(3)                    = 0
[pid 19512] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19512] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19512] write(4, "78", 2)           = 2
[pid 19512] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19512] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19512] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19512] exit_group(0)               = ?
[pid 19512] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19512, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19513 attached
, child_tidptr=0x555555af35d0) = 19513
[pid 19513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19513] setpgid(0, 0)               = 0
[pid 19513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19513] write(3, "1000", 4)         = 4
[pid 19513] close(3)                    = 0
[pid 19513] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19513] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19513] write(4, "78", 2)           = 2
[pid 19513] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19513] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19513] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19513] exit_group(0)               = ?
[pid 19513] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19513, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19514 attached
, child_tidptr=0x555555af35d0) = 19514
[pid 19514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19514] setpgid(0, 0)               = 0
[pid 19514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19514] write(3, "1000", 4)         = 4
[pid 19514] close(3)                    = 0
[pid 19514] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19514] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19514] write(4, "78", 2)           = 2
[pid 19514] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19514] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19514] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19514] exit_group(0)               = ?
[pid 19514] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19514, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19515 attached
, child_tidptr=0x555555af35d0) = 19515
[pid 19515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19515] setpgid(0, 0)               = 0
[pid 19515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19515] write(3, "1000", 4)         = 4
[pid 19515] close(3)                    = 0
[pid 19515] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19515] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19515] write(4, "78", 2)           = 2
[pid 19515] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19515] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19515] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19515] exit_group(0)               = ?
[pid 19515] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19515, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19516 attached
, child_tidptr=0x555555af35d0) = 19516
[pid 19516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19516] setpgid(0, 0)               = 0
[pid 19516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19516] write(3, "1000", 4)         = 4
[pid 19516] close(3)                    = 0
[pid 19516] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19516] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19516] write(4, "78", 2)           = 2
[pid 19516] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 19516] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19516] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 19516] exit_group(0)               = ?
[pid 19516] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19516, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19517 attached
, child_tidptr=0x555555af35d0) = 19517
[pid 19517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19517] setpgid(0, 0)               = 0
[pid 19517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19517] write(3, "1000", 4)         = 4
[pid 19517] close(3)                    = 0
[pid 19517] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19517] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19517] write(4, "78", 2)           = 2
[pid 19517] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19517] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19517] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19517] exit_group(0)               = ?
[pid 19517] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19517, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19518 attached
, child_tidptr=0x555555af35d0) = 19518
[pid 19518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19518] setpgid(0, 0)               = 0
[pid 19518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19518] write(3, "1000", 4)         = 4
[pid 19518] close(3)                    = 0
[pid 19518] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19518] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19518] write(4, "78", 2)           = 2
[pid 19518] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19518] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19518] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19518] exit_group(0)               = ?
[pid 19518] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19518, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19519 attached
, child_tidptr=0x555555af35d0) = 19519
[pid 19519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19519] setpgid(0, 0)               = 0
[pid 19519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19519] write(3, "1000", 4)         = 4
[pid 19519] close(3)                    = 0
[pid 19519] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19519] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19519] write(4, "78", 2)           = 2
[pid 19519] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19519] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19519] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19519] exit_group(0)               = ?
[pid 19519] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19519, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19520 attached
, child_tidptr=0x555555af35d0) = 19520
[pid 19520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19520] setpgid(0, 0)               = 0
[pid 19520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19520] write(3, "1000", 4)         = 4
[pid 19520] close(3)                    = 0
[pid 19520] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19520] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19520] write(4, "78", 2)           = 2
[pid 19520] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19520] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19520] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19520] exit_group(0)               = ?
[pid 19520] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19520, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19521 attached
, child_tidptr=0x555555af35d0) = 19521
[pid 19521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19521] setpgid(0, 0)               = 0
[pid 19521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19521] write(3, "1000", 4)         = 4
[pid 19521] close(3)                    = 0
[pid 19521] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19521] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19521] write(4, "78", 2)           = 2
[pid 19521] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19521] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19521] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19521] exit_group(0)               = ?
[pid 19521] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19521, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19522 attached
, child_tidptr=0x555555af35d0) = 19522
[pid 19522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19522] setpgid(0, 0)               = 0
[pid 19522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19522] write(3, "1000", 4)         = 4
[pid 19522] close(3)                    = 0
[pid 19522] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19522] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19522] write(4, "78", 2)           = 2
[pid 19522] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19522] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19522] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19522] exit_group(0)               = ?
[pid 19522] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19522, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19523 attached
, child_tidptr=0x555555af35d0) = 19523
[pid 19523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19523] setpgid(0, 0)               = 0
[pid 19523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19523] write(3, "1000", 4)         = 4
[pid 19523] close(3)                    = 0
[pid 19523] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19523] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19523] write(4, "78", 2)           = 2
[pid 19523] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19523] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19523] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19523] exit_group(0)               = ?
[pid 19523] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19523, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19524 attached
, child_tidptr=0x555555af35d0) = 19524
[pid 19524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19524] setpgid(0, 0)               = 0
[pid 19524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19524] write(3, "1000", 4)         = 4
[pid 19524] close(3)                    = 0
[pid 19524] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19524] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19524] write(4, "78", 2)           = 2
[pid 19524] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19524] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19524] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19524] exit_group(0)               = ?
[pid 19524] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19524, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19525 attached
, child_tidptr=0x555555af35d0) = 19525
[pid 19525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19525] setpgid(0, 0)               = 0
[pid 19525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19525] write(3, "1000", 4)         = 4
[pid 19525] close(3)                    = 0
[pid 19525] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19525] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19525] write(4, "78", 2)           = 2
[pid 19525] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19525] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19525] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19525] exit_group(0)               = ?
[pid 19525] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19525, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19526 attached
, child_tidptr=0x555555af35d0) = 19526
[pid 19526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19526] setpgid(0, 0)               = 0
[pid 19526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19526] write(3, "1000", 4)         = 4
[pid 19526] close(3)                    = 0
[pid 19526] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19526] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19526] write(4, "78", 2)           = 2
[pid 19526] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19526] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19526] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19526] exit_group(0)               = ?
[pid 19526] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19526, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19527 attached
, child_tidptr=0x555555af35d0) = 19527
[pid 19527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19527] setpgid(0, 0)               = 0
[pid 19527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19527] write(3, "1000", 4)         = 4
[pid 19527] close(3)                    = 0
[pid 19527] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19527] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19527] write(4, "78", 2)           = 2
[pid 19527] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19527] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19527] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19527] exit_group(0)               = ?
[pid 19527] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19527, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19528 attached
, child_tidptr=0x555555af35d0) = 19528
[pid 19528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19528] setpgid(0, 0)               = 0
[pid 19528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19528] write(3, "1000", 4)         = 4
[pid 19528] close(3)                    = 0
[pid 19528] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19528] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19528] write(4, "78", 2)           = 2
[pid 19528] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19528] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19528] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19528] exit_group(0)               = ?
[pid 19528] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19528, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19529 attached
, child_tidptr=0x555555af35d0) = 19529
[pid 19529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19529] setpgid(0, 0)               = 0
[pid 19529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19529] write(3, "1000", 4)         = 4
[pid 19529] close(3)                    = 0
[pid 19529] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19529] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19529] write(4, "78", 2)           = 2
[pid 19529] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19529] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19529] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19529] exit_group(0)               = ?
[pid 19529] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19529, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19530 attached
, child_tidptr=0x555555af35d0) = 19530
[pid 19530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19530] setpgid(0, 0)               = 0
[pid 19530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19530] write(3, "1000", 4)         = 4
[pid 19530] close(3)                    = 0
[pid 19530] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19530] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19530] write(4, "78", 2)           = 2
[pid 19530] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19530] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19530] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19530] exit_group(0)               = ?
[pid 19530] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19530, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19531 attached
, child_tidptr=0x555555af35d0) = 19531
[pid 19531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19531] setpgid(0, 0)               = 0
[pid 19531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19531] write(3, "1000", 4)         = 4
[pid 19531] close(3)                    = 0
[pid 19531] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19531] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19531] write(4, "78", 2)           = 2
[pid 19531] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19531] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19531] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19531] exit_group(0)               = ?
[pid 19531] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19531, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19532 attached
, child_tidptr=0x555555af35d0) = 19532
[pid 19532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19532] setpgid(0, 0)               = 0
[pid 19532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19532] write(3, "1000", 4)         = 4
[pid 19532] close(3)                    = 0
[pid 19532] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19532] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19532] write(4, "78", 2)           = 2
[pid 19532] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19532] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19532] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19532] exit_group(0)               = ?
[pid 19532] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19532, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19533
./strace-static-x86_64: Process 19533 attached
[pid 19533] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19533] setpgid(0, 0)               = 0
[pid 19533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19533] write(3, "1000", 4)         = 4
[pid 19533] close(3)                    = 0
[pid 19533] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19533] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19533] write(4, "78", 2)           = 2
[pid 19533] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19533] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19533] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19533] exit_group(0)               = ?
[pid 19533] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19533, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19534 attached
, child_tidptr=0x555555af35d0) = 19534
[pid 19534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19534] setpgid(0, 0)               = 0
[pid 19534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19534] write(3, "1000", 4)         = 4
[pid 19534] close(3)                    = 0
[pid 19534] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19534] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19534] write(4, "78", 2)           = 2
[pid 19534] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19534] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19534] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19534] exit_group(0)               = ?
[pid 19534] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19534, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19535 attached
, child_tidptr=0x555555af35d0) = 19535
[pid 19535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19535] setpgid(0, 0)               = 0
[pid 19535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19535] write(3, "1000", 4)         = 4
[pid 19535] close(3)                    = 0
[pid 19535] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19535] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19535] write(4, "78", 2)           = 2
[pid 19535] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19535] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19535] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19535] exit_group(0)               = ?
[pid 19535] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19535, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19536 attached
, child_tidptr=0x555555af35d0) = 19536
[pid 19536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19536] setpgid(0, 0)               = 0
[pid 19536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19536] write(3, "1000", 4)         = 4
[pid 19536] close(3)                    = 0
[pid 19536] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19536] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19536] write(4, "78", 2)           = 2
[pid 19536] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19536] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19536] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19536] exit_group(0)               = ?
[pid 19536] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19536, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19537 attached
, child_tidptr=0x555555af35d0) = 19537
[pid 19537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19537] setpgid(0, 0)               = 0
[pid 19537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19537] write(3, "1000", 4)         = 4
[pid 19537] close(3)                    = 0
[pid 19537] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19537] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19537] write(4, "78", 2)           = 2
[pid 19537] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19537] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19537] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19537] exit_group(0)               = ?
[pid 19537] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19537, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19538 attached
, child_tidptr=0x555555af35d0) = 19538
[pid 19538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19538] setpgid(0, 0)               = 0
[pid 19538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19538] write(3, "1000", 4)         = 4
[pid 19538] close(3)                    = 0
[pid 19538] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19538] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19538] write(4, "78", 2)           = 2
[pid 19538] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19538] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19538] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19538] exit_group(0)               = ?
[pid 19538] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19538, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19539 attached
, child_tidptr=0x555555af35d0) = 19539
[pid 19539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19539] setpgid(0, 0)               = 0
[pid 19539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19539] write(3, "1000", 4)         = 4
[pid 19539] close(3)                    = 0
[pid 19539] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19539] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19539] write(4, "78", 2)           = 2
[pid 19539] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19539] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19539] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19539] exit_group(0)               = ?
[pid 19539] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19539, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19540 attached
, child_tidptr=0x555555af35d0) = 19540
[pid 19540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19540] setpgid(0, 0)               = 0
[pid 19540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19540] write(3, "1000", 4)         = 4
[pid 19540] close(3)                    = 0
[pid 19540] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19540] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19540] write(4, "78", 2)           = 2
[pid 19540] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19540] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19540] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19540] exit_group(0)               = ?
[pid 19540] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19540, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19541 attached
, child_tidptr=0x555555af35d0) = 19541
[pid 19541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19541] setpgid(0, 0)               = 0
[pid 19541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19541] write(3, "1000", 4)         = 4
[pid 19541] close(3)                    = 0
[pid 19541] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19541] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19541] write(4, "78", 2)           = 2
[pid 19541] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19541] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19541] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19541] exit_group(0)               = ?
[pid 19541] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19541, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19542 attached
, child_tidptr=0x555555af35d0) = 19542
[pid 19542] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19542] setpgid(0, 0)               = 0
[pid 19542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19542] write(3, "1000", 4)         = 4
[pid 19542] close(3)                    = 0
[pid 19542] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19542] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19542] write(4, "78", 2)           = 2
[pid 19542] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19542] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19542] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19542] exit_group(0)               = ?
[pid 19542] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19542, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19543 attached
, child_tidptr=0x555555af35d0) = 19543
[pid 19543] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19543] setpgid(0, 0)               = 0
[pid 19543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19543] write(3, "1000", 4)         = 4
[pid 19543] close(3)                    = 0
[pid 19543] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19543] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19543] write(4, "78", 2)           = 2
[pid 19543] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19543] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19543] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19543] exit_group(0)               = ?
[pid 19543] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19543, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19544 attached
, child_tidptr=0x555555af35d0) = 19544
[pid 19544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19544] setpgid(0, 0)               = 0
[pid 19544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19544] write(3, "1000", 4)         = 4
[pid 19544] close(3)                    = 0
[pid 19544] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19544] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19544] write(4, "78", 2)           = 2
[pid 19544] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19544] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19544] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19544] exit_group(0)               = ?
[pid 19544] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19544, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19545 attached
, child_tidptr=0x555555af35d0) = 19545
[pid 19545] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19545] setpgid(0, 0)               = 0
[pid 19545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19545] write(3, "1000", 4)         = 4
[pid 19545] close(3)                    = 0
[pid 19545] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19545] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19545] write(4, "78", 2)           = 2
[pid 19545] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19545] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19545] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19545] exit_group(0)               = ?
[pid 19545] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19545, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19546 attached
, child_tidptr=0x555555af35d0) = 19546
[pid 19546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19546] setpgid(0, 0)               = 0
[pid 19546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19546] write(3, "1000", 4)         = 4
[pid 19546] close(3)                    = 0
[pid 19546] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19546] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19546] write(4, "78", 2)           = 2
[pid 19546] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19546] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19546] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19546] exit_group(0)               = ?
[pid 19546] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19546, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19547
./strace-static-x86_64: Process 19547 attached
[pid 19547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19547] setpgid(0, 0)               = 0
[pid 19547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19547] write(3, "1000", 4)         = 4
[pid 19547] close(3)                    = 0
[pid 19547] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19547] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19547] write(4, "78", 2)           = 2
[pid 19547] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19547] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19547] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19547] exit_group(0)               = ?
[pid 19547] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19547, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19548
./strace-static-x86_64: Process 19548 attached
[pid 19548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19548] setpgid(0, 0)               = 0
[pid 19548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19548] write(3, "1000", 4)         = 4
[pid 19548] close(3)                    = 0
[pid 19548] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19548] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19548] write(4, "78", 2)           = 2
[pid 19548] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19548] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19548] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19548] exit_group(0)               = ?
[pid 19548] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19548, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19549 attached
, child_tidptr=0x555555af35d0) = 19549
[pid 19549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19549] setpgid(0, 0)               = 0
[pid 19549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19549] write(3, "1000", 4)         = 4
[pid 19549] close(3)                    = 0
[pid 19549] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19549] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19549] write(4, "78", 2)           = 2
[pid 19549] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19549] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19549] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19549] exit_group(0)               = ?
[pid 19549] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19549, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19550
./strace-static-x86_64: Process 19550 attached
[pid 19550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19550] setpgid(0, 0)               = 0
[pid 19550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19550] write(3, "1000", 4)         = 4
[pid 19550] close(3)                    = 0
[pid 19550] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19550] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19550] write(4, "78", 2)           = 2
[pid 19550] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19550] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19550] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19550] exit_group(0)               = ?
[pid 19550] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19550, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19551 attached
, child_tidptr=0x555555af35d0) = 19551
[pid 19551] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19551] setpgid(0, 0)               = 0
[pid 19551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19551] write(3, "1000", 4)         = 4
[pid 19551] close(3)                    = 0
[pid 19551] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19551] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19551] write(4, "78", 2)           = 2
[pid 19551] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19551] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19551] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19551] exit_group(0)               = ?
[pid 19551] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19551, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19552 attached
, child_tidptr=0x555555af35d0) = 19552
[pid 19552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19552] setpgid(0, 0)               = 0
[pid 19552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19552] write(3, "1000", 4)         = 4
[pid 19552] close(3)                    = 0
[pid 19552] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19552] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19552] write(4, "78", 2)           = 2
[pid 19552] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19552] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19552] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19552] exit_group(0)               = ?
[pid 19552] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19552, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19553 attached
, child_tidptr=0x555555af35d0) = 19553
[pid 19553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19553] setpgid(0, 0)               = 0
[pid 19553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19553] write(3, "1000", 4)         = 4
[pid 19553] close(3)                    = 0
[pid 19553] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19553] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19553] write(4, "78", 2)           = 2
[pid 19553] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19553] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19553] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19553] exit_group(0)               = ?
[pid 19553] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19553, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19554 attached
, child_tidptr=0x555555af35d0) = 19554
[pid 19554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19554] setpgid(0, 0)               = 0
[pid 19554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19554] write(3, "1000", 4)         = 4
[pid 19554] close(3)                    = 0
[pid 19554] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19554] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19554] write(4, "78", 2)           = 2
[pid 19554] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19554] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19554] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19554] exit_group(0)               = ?
[pid 19554] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19554, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19555 attached
, child_tidptr=0x555555af35d0) = 19555
[pid 19555] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19555] setpgid(0, 0)               = 0
[pid 19555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19555] write(3, "1000", 4)         = 4
[pid 19555] close(3)                    = 0
[pid 19555] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19555] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19555] write(4, "78", 2)           = 2
[pid 19555] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19555] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19555] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19555] exit_group(0)               = ?
[pid 19555] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19555, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19556 attached
, child_tidptr=0x555555af35d0) = 19556
[pid 19556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19556] setpgid(0, 0)               = 0
[pid 19556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19556] write(3, "1000", 4)         = 4
[pid 19556] close(3)                    = 0
[pid 19556] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19556] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19556] write(4, "78", 2)           = 2
[pid 19556] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19556] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19556] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19556] exit_group(0)               = ?
[pid 19556] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19556, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19557 attached
, child_tidptr=0x555555af35d0) = 19557
[pid 19557] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19557] setpgid(0, 0)               = 0
[pid 19557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19557] write(3, "1000", 4)         = 4
[pid 19557] close(3)                    = 0
[pid 19557] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19557] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19557] write(4, "78", 2)           = 2
[pid 19557] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19557] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19557] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19557] exit_group(0)               = ?
[pid 19557] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19557, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19558 attached
, child_tidptr=0x555555af35d0) = 19558
[pid 19558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19558] setpgid(0, 0)               = 0
[pid 19558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19558] write(3, "1000", 4)         = 4
[pid 19558] close(3)                    = 0
[pid 19558] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19558] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19558] write(4, "78", 2)           = 2
[pid 19558] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19558] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19558] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19558] exit_group(0)               = ?
[pid 19558] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19558, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19559 attached
, child_tidptr=0x555555af35d0) = 19559
[pid 19559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19559] setpgid(0, 0)               = 0
[pid 19559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19559] write(3, "1000", 4)         = 4
[pid 19559] close(3)                    = 0
[pid 19559] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19559] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19559] write(4, "78", 2)           = 2
[pid 19559] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19559] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19559] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19559] exit_group(0)               = ?
[pid 19559] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19559, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19560 attached
, child_tidptr=0x555555af35d0) = 19560
[pid 19560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19560] setpgid(0, 0)               = 0
[pid 19560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19560] write(3, "1000", 4)         = 4
[pid 19560] close(3)                    = 0
[pid 19560] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19560] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19560] write(4, "78", 2)           = 2
[pid 19560] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19560] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19560] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19560] exit_group(0)               = ?
[pid 19560] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19560, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19561 attached
, child_tidptr=0x555555af35d0) = 19561
[pid 19561] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19561] setpgid(0, 0)               = 0
[pid 19561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19561] write(3, "1000", 4)         = 4
[pid 19561] close(3)                    = 0
[pid 19561] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19561] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19561] write(4, "78", 2)           = 2
[pid 19561] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19561] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19561] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19561] exit_group(0)               = ?
[pid 19561] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19561, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19562
./strace-static-x86_64: Process 19562 attached
[pid 19562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19562] setpgid(0, 0)               = 0
[pid 19562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19562] write(3, "1000", 4)         = 4
[pid 19562] close(3)                    = 0
[pid 19562] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19562] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19562] write(4, "78", 2)           = 2
[pid 19562] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19562] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19562] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19562] exit_group(0)               = ?
[pid 19562] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19562, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19563 attached
, child_tidptr=0x555555af35d0) = 19563
[pid 19563] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19563] setpgid(0, 0)               = 0
[pid 19563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19563] write(3, "1000", 4)         = 4
[pid 19563] close(3)                    = 0
[pid 19563] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19563] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19563] write(4, "78", 2)           = 2
[pid 19563] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19563] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19563] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19563] exit_group(0)               = ?
[pid 19563] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19563, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19564 attached
, child_tidptr=0x555555af35d0) = 19564
[pid 19564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19564] setpgid(0, 0)               = 0
[pid 19564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19564] write(3, "1000", 4)         = 4
[pid 19564] close(3)                    = 0
[pid 19564] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19564] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19564] write(4, "78", 2)           = 2
[pid 19564] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19564] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19564] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19564] exit_group(0)               = ?
[pid 19564] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19564, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19565 attached
, child_tidptr=0x555555af35d0) = 19565
[pid 19565] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19565] setpgid(0, 0)               = 0
[pid 19565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19565] write(3, "1000", 4)         = 4
[pid 19565] close(3)                    = 0
[pid 19565] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19565] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19565] write(4, "78", 2)           = 2
[pid 19565] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19565] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19565] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19565] exit_group(0)               = ?
[pid 19565] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19565, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19566 attached
, child_tidptr=0x555555af35d0) = 19566
[pid 19566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19566] setpgid(0, 0)               = 0
[pid 19566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19566] write(3, "1000", 4)         = 4
[pid 19566] close(3)                    = 0
[pid 19566] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19566] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19566] write(4, "78", 2)           = 2
[pid 19566] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19566] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19566] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19566] exit_group(0)               = ?
[pid 19566] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19566, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19567 attached
, child_tidptr=0x555555af35d0) = 19567
[pid 19567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19567] setpgid(0, 0)               = 0
[pid 19567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19567] write(3, "1000", 4)         = 4
[pid 19567] close(3)                    = 0
[pid 19567] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19567] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19567] write(4, "78", 2)           = 2
[pid 19567] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19567] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19567] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19567] exit_group(0)               = ?
[pid 19567] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19567, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19568 attached
, child_tidptr=0x555555af35d0) = 19568
[pid 19568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19568] setpgid(0, 0)               = 0
[pid 19568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19568] write(3, "1000", 4)         = 4
[pid 19568] close(3)                    = 0
[pid 19568] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19568] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19568] write(4, "78", 2)           = 2
[pid 19568] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19568] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19568] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19568] exit_group(0)               = ?
[pid 19568] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19568, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19569 attached
, child_tidptr=0x555555af35d0) = 19569
[pid 19569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19569] setpgid(0, 0)               = 0
[pid 19569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19569] write(3, "1000", 4)         = 4
[pid 19569] close(3)                    = 0
[pid 19569] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19569] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19569] write(4, "78", 2)           = 2
[pid 19569] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19569] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19569] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19569] exit_group(0)               = ?
[pid 19569] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19569, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19570 attached
, child_tidptr=0x555555af35d0) = 19570
[pid 19570] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19570] setpgid(0, 0)               = 0
[pid 19570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19570] write(3, "1000", 4)         = 4
[pid 19570] close(3)                    = 0
[pid 19570] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19570] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19570] write(4, "78", 2)           = 2
[pid 19570] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19570] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19570] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19570] exit_group(0)               = ?
[pid 19570] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19570, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19571 attached
, child_tidptr=0x555555af35d0) = 19571
[pid 19571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19571] setpgid(0, 0)               = 0
[pid 19571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19571] write(3, "1000", 4)         = 4
[pid 19571] close(3)                    = 0
[pid 19571] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19571] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19571] write(4, "78", 2)           = 2
[pid 19571] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19571] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19571] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19571] exit_group(0)               = ?
[pid 19571] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19571, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19572 attached
, child_tidptr=0x555555af35d0) = 19572
[pid 19572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19572] setpgid(0, 0)               = 0
[pid 19572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19572] write(3, "1000", 4)         = 4
[pid 19572] close(3)                    = 0
[pid 19572] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19572] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19572] write(4, "78", 2)           = 2
[pid 19572] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19572] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19572] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19572] exit_group(0)               = ?
[pid 19572] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19572, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19573 attached
, child_tidptr=0x555555af35d0) = 19573
[pid 19573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19573] setpgid(0, 0)               = 0
[pid 19573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19573] write(3, "1000", 4)         = 4
[pid 19573] close(3)                    = 0
[pid 19573] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19573] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19573] write(4, "78", 2)           = 2
[pid 19573] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19573] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19573] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19573] exit_group(0)               = ?
[pid 19573] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19573, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19574 attached
, child_tidptr=0x555555af35d0) = 19574
[pid 19574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19574] setpgid(0, 0)               = 0
[pid 19574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19574] write(3, "1000", 4)         = 4
[pid 19574] close(3)                    = 0
[pid 19574] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19574] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19574] write(4, "78", 2)           = 2
[pid 19574] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19574] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19574] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19574] exit_group(0)               = ?
[pid 19574] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19574, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19575 attached
, child_tidptr=0x555555af35d0) = 19575
[pid 19575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19575] setpgid(0, 0)               = 0
[pid 19575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19575] write(3, "1000", 4)         = 4
[pid 19575] close(3)                    = 0
[pid 19575] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19575] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19575] write(4, "78", 2)           = 2
[pid 19575] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19575] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19575] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19575] exit_group(0)               = ?
[pid 19575] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19575, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19576 attached
, child_tidptr=0x555555af35d0) = 19576
[pid 19576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19576] setpgid(0, 0)               = 0
[pid 19576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19576] write(3, "1000", 4)         = 4
[pid 19576] close(3)                    = 0
[pid 19576] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19576] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19576] write(4, "78", 2)           = 2
[pid 19576] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19576] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19576] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19576] exit_group(0)               = ?
[pid 19576] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19576, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19577 attached
, child_tidptr=0x555555af35d0) = 19577
[pid 19577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19577] setpgid(0, 0)               = 0
[pid 19577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19577] write(3, "1000", 4)         = 4
[pid 19577] close(3)                    = 0
[pid 19577] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19577] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19577] write(4, "78", 2)           = 2
[pid 19577] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19577] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19577] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19577] exit_group(0)               = ?
[pid 19577] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19577, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19578 attached
, child_tidptr=0x555555af35d0) = 19578
[pid 19578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19578] setpgid(0, 0)               = 0
[pid 19578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19578] write(3, "1000", 4)         = 4
[pid 19578] close(3)                    = 0
[pid 19578] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19578] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19578] write(4, "78", 2)           = 2
[pid 19578] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19578] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19578] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19578] exit_group(0)               = ?
[pid 19578] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19578, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19579 attached
, child_tidptr=0x555555af35d0) = 19579
[pid 19579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19579] setpgid(0, 0)               = 0
[pid 19579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19579] write(3, "1000", 4)         = 4
[pid 19579] close(3)                    = 0
[pid 19579] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19579] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19579] write(4, "78", 2)           = 2
[pid 19579] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19579] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19579] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19579] exit_group(0)               = ?
[pid 19579] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19579, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19580 attached
, child_tidptr=0x555555af35d0) = 19580
[pid 19580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19580] setpgid(0, 0)               = 0
[pid 19580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19580] write(3, "1000", 4)         = 4
[pid 19580] close(3)                    = 0
[pid 19580] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19580] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19580] write(4, "78", 2)           = 2
[pid 19580] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19580] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19580] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19580] exit_group(0)               = ?
[pid 19580] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19580, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19581 attached
, child_tidptr=0x555555af35d0) = 19581
[pid 19581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19581] setpgid(0, 0)               = 0
[pid 19581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19581] write(3, "1000", 4)         = 4
[pid 19581] close(3)                    = 0
[pid 19581] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19581] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19581] write(4, "78", 2)           = 2
[pid 19581] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19581] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19581] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19581] exit_group(0)               = ?
[pid 19581] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19581, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19582 attached
, child_tidptr=0x555555af35d0) = 19582
[pid 19582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19582] setpgid(0, 0)               = 0
[pid 19582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19582] write(3, "1000", 4)         = 4
[pid 19582] close(3)                    = 0
[pid 19582] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19582] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19582] write(4, "78", 2)           = 2
[pid 19582] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19582] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19582] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19582] exit_group(0)               = ?
[pid 19582] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19582, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19583 attached
, child_tidptr=0x555555af35d0) = 19583
[pid 19583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19583] setpgid(0, 0)               = 0
[pid 19583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19583] write(3, "1000", 4)         = 4
[pid 19583] close(3)                    = 0
[pid 19583] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19583] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19583] write(4, "78", 2)           = 2
[pid 19583] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19583] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19583] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19583] exit_group(0)               = ?
[pid 19583] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19583, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19584
./strace-static-x86_64: Process 19584 attached
[pid 19584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19584] setpgid(0, 0)               = 0
[pid 19584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19584] write(3, "1000", 4)         = 4
[pid 19584] close(3)                    = 0
[pid 19584] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19584] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19584] write(4, "78", 2)           = 2
[pid 19584] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19584] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19584] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19584] exit_group(0)               = ?
[pid 19584] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19584, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19585
./strace-static-x86_64: Process 19585 attached
[pid 19585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19585] setpgid(0, 0)               = 0
[pid 19585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19585] write(3, "1000", 4)         = 4
[pid 19585] close(3)                    = 0
[pid 19585] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19585] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19585] write(4, "78", 2)           = 2
[pid 19585] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19585] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19585] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19585] exit_group(0)               = ?
[pid 19585] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19585, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19586
./strace-static-x86_64: Process 19586 attached
[pid 19586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19586] setpgid(0, 0)               = 0
[pid 19586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19586] write(3, "1000", 4)         = 4
[pid 19586] close(3)                    = 0
[pid 19586] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19586] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19586] write(4, "78", 2)           = 2
[pid 19586] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19586] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19586] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19586] exit_group(0)               = ?
[pid 19586] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19586, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19587
./strace-static-x86_64: Process 19587 attached
[pid 19587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19587] setpgid(0, 0)               = 0
[pid 19587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19587] write(3, "1000", 4)         = 4
[pid 19587] close(3)                    = 0
[pid 19587] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19587] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19587] write(4, "78", 2)           = 2
[pid 19587] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19587] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19587] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19587] exit_group(0)               = ?
[pid 19587] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19587, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19588 attached
, child_tidptr=0x555555af35d0) = 19588
[pid 19588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19588] setpgid(0, 0)               = 0
[pid 19588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19588] write(3, "1000", 4)         = 4
[pid 19588] close(3)                    = 0
[pid 19588] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19588] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19588] write(4, "78", 2)           = 2
[pid 19588] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19588] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19588] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19588] exit_group(0)               = ?
[pid 19588] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19588, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19589 attached
, child_tidptr=0x555555af35d0) = 19589
[pid 19589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19589] setpgid(0, 0)               = 0
[pid 19589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19589] write(3, "1000", 4)         = 4
[pid 19589] close(3)                    = 0
[pid 19589] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19589] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19589] write(4, "78", 2)           = 2
[pid 19589] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19589] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19589] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19589] exit_group(0)               = ?
[pid 19589] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19589, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19590 attached
, child_tidptr=0x555555af35d0) = 19590
[pid 19590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19590] setpgid(0, 0)               = 0
[pid 19590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19590] write(3, "1000", 4)         = 4
[pid 19590] close(3)                    = 0
[pid 19590] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19590] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19590] write(4, "78", 2)           = 2
[pid 19590] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19590] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19590] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19590] exit_group(0)               = ?
[pid 19590] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19590, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19591 attached
, child_tidptr=0x555555af35d0) = 19591
[pid 19591] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19591] setpgid(0, 0)               = 0
[pid 19591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19591] write(3, "1000", 4)         = 4
[pid 19591] close(3)                    = 0
[pid 19591] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19591] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19591] write(4, "78", 2)           = 2
[pid 19591] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19591] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19591] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19591] exit_group(0)               = ?
[pid 19591] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19591, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19592 attached
, child_tidptr=0x555555af35d0) = 19592
[pid 19592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19592] setpgid(0, 0)               = 0
[pid 19592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19592] write(3, "1000", 4)         = 4
[pid 19592] close(3)                    = 0
[pid 19592] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19592] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19592] write(4, "78", 2)           = 2
[pid 19592] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19592] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19592] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19592] exit_group(0)               = ?
[pid 19592] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19592, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19593
./strace-static-x86_64: Process 19593 attached
[pid 19593] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19593] setpgid(0, 0)               = 0
[pid 19593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19593] write(3, "1000", 4)         = 4
[pid 19593] close(3)                    = 0
[pid 19593] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19593] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19593] write(4, "78", 2)           = 2
[pid 19593] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19593] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19593] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19593] exit_group(0)               = ?
[pid 19593] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19593, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19594 attached
, child_tidptr=0x555555af35d0) = 19594
[pid 19594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19594] setpgid(0, 0)               = 0
[pid 19594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19594] write(3, "1000", 4)         = 4
[pid 19594] close(3)                    = 0
[pid 19594] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19594] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19594] write(4, "78", 2)           = 2
[pid 19594] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19594] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19594] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19594] exit_group(0)               = ?
[pid 19594] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19594, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19595 attached
, child_tidptr=0x555555af35d0) = 19595
[pid 19595] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19595] setpgid(0, 0)               = 0
[pid 19595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19595] write(3, "1000", 4)         = 4
[pid 19595] close(3)                    = 0
[pid 19595] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19595] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19595] write(4, "78", 2)           = 2
[pid 19595] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19595] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19595] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19595] exit_group(0)               = ?
[pid 19595] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19595, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19596
./strace-static-x86_64: Process 19596 attached
[pid 19596] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19596] setpgid(0, 0)               = 0
[pid 19596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19596] write(3, "1000", 4)         = 4
[pid 19596] close(3)                    = 0
[pid 19596] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19596] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19596] write(4, "78", 2)           = 2
[pid 19596] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19596] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19596] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19596] exit_group(0)               = ?
[pid 19596] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19596, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19597
./strace-static-x86_64: Process 19597 attached
[pid 19597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19597] setpgid(0, 0)               = 0
[pid 19597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19597] write(3, "1000", 4)         = 4
[pid 19597] close(3)                    = 0
[pid 19597] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19597] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19597] write(4, "78", 2)           = 2
[pid 19597] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19597] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19597] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19597] exit_group(0)               = ?
[pid 19597] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19597, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19598 attached
, child_tidptr=0x555555af35d0) = 19598
[pid 19598] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19598] setpgid(0, 0)               = 0
[pid 19598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19598] write(3, "1000", 4)         = 4
[pid 19598] close(3)                    = 0
[pid 19598] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19598] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19598] write(4, "78", 2)           = 2
[pid 19598] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19598] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19598] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19598] exit_group(0)               = ?
[pid 19598] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19598, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19599 attached
, child_tidptr=0x555555af35d0) = 19599
[pid 19599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19599] setpgid(0, 0)               = 0
[pid 19599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19599] write(3, "1000", 4)         = 4
[pid 19599] close(3)                    = 0
[pid 19599] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19599] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19599] write(4, "78", 2)           = 2
[pid 19599] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19599] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19599] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19599] exit_group(0)               = ?
[pid 19599] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19599, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19600
./strace-static-x86_64: Process 19600 attached
[pid 19600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19600] setpgid(0, 0)               = 0
[pid 19600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19600] write(3, "1000", 4)         = 4
[pid 19600] close(3)                    = 0
[pid 19600] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19600] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19600] write(4, "78", 2)           = 2
[pid 19600] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19600] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19600] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19600] exit_group(0)               = ?
[pid 19600] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19600, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19601 attached
, child_tidptr=0x555555af35d0) = 19601
[pid 19601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19601] setpgid(0, 0)               = 0
[pid 19601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19601] write(3, "1000", 4)         = 4
[pid 19601] close(3)                    = 0
[pid 19601] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19601] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19601] write(4, "78", 2)           = 2
[pid 19601] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19601] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19601] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19601] exit_group(0)               = ?
[pid 19601] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19601, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19602 attached
, child_tidptr=0x555555af35d0) = 19602
[pid 19602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19602] setpgid(0, 0)               = 0
[pid 19602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19602] write(3, "1000", 4)         = 4
[pid 19602] close(3)                    = 0
[pid 19602] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19602] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19602] write(4, "78", 2)           = 2
[pid 19602] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19602] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19602] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19602] exit_group(0)               = ?
[pid 19602] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19602, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19603 attached
, child_tidptr=0x555555af35d0) = 19603
[pid 19603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19603] setpgid(0, 0)               = 0
[pid 19603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19603] write(3, "1000", 4)         = 4
[pid 19603] close(3)                    = 0
[pid 19603] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19603] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19603] write(4, "78", 2)           = 2
[pid 19603] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19603] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19603] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19603] exit_group(0)               = ?
[pid 19603] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19603, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19604 attached
, child_tidptr=0x555555af35d0) = 19604
[pid 19604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19604] setpgid(0, 0)               = 0
[pid 19604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19604] write(3, "1000", 4)         = 4
[pid 19604] close(3)                    = 0
[pid 19604] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19604] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19604] write(4, "78", 2)           = 2
[pid 19604] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19604] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19604] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19604] exit_group(0)               = ?
[pid 19604] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19604, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19605 attached
, child_tidptr=0x555555af35d0) = 19605
[pid 19605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19605] setpgid(0, 0)               = 0
[pid 19605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19605] write(3, "1000", 4)         = 4
[pid 19605] close(3)                    = 0
[pid 19605] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19605] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19605] write(4, "78", 2)           = 2
[pid 19605] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19605] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19605] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19605] exit_group(0)               = ?
[pid 19605] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19605, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19606
./strace-static-x86_64: Process 19606 attached
[pid 19606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19606] setpgid(0, 0)               = 0
[pid 19606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19606] write(3, "1000", 4)         = 4
[pid 19606] close(3)                    = 0
[pid 19606] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19606] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19606] write(4, "78", 2)           = 2
[pid 19606] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19606] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19606] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19606] exit_group(0)               = ?
[pid 19606] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19606, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19607 attached
, child_tidptr=0x555555af35d0) = 19607
[pid 19607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19607] setpgid(0, 0)               = 0
[pid 19607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19607] write(3, "1000", 4)         = 4
[pid 19607] close(3)                    = 0
[pid 19607] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19607] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19607] write(4, "78", 2)           = 2
[pid 19607] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19607] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19607] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19607] exit_group(0)               = ?
[pid 19607] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19607, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19608 attached
, child_tidptr=0x555555af35d0) = 19608
[pid 19608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19608] setpgid(0, 0)               = 0
[pid 19608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19608] write(3, "1000", 4)         = 4
[pid 19608] close(3)                    = 0
[pid 19608] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19608] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19608] write(4, "78", 2)           = 2
[pid 19608] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19608] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19608] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19608] exit_group(0)               = ?
[pid 19608] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19608, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19609 attached
, child_tidptr=0x555555af35d0) = 19609
[pid 19609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19609] setpgid(0, 0)               = 0
[pid 19609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19609] write(3, "1000", 4)         = 4
[pid 19609] close(3)                    = 0
[pid 19609] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19609] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19609] write(4, "78", 2)           = 2
[pid 19609] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19609] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19609] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19609] exit_group(0)               = ?
[pid 19609] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19609, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19610
./strace-static-x86_64: Process 19610 attached
[pid 19610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19610] setpgid(0, 0)               = 0
[pid 19610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19610] write(3, "1000", 4)         = 4
[pid 19610] close(3)                    = 0
[pid 19610] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19610] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19610] write(4, "78", 2)           = 2
[pid 19610] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19610] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19610] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19610] exit_group(0)               = ?
[pid 19610] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19610, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19611 attached
, child_tidptr=0x555555af35d0) = 19611
[pid 19611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19611] setpgid(0, 0)               = 0
[pid 19611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19611] write(3, "1000", 4)         = 4
[pid 19611] close(3)                    = 0
[pid 19611] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19611] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19611] write(4, "78", 2)           = 2
[pid 19611] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19611] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19611] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19611] exit_group(0)               = ?
[pid 19611] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19611, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19612 attached
, child_tidptr=0x555555af35d0) = 19612
[pid 19612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19612] setpgid(0, 0)               = 0
[pid 19612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19612] write(3, "1000", 4)         = 4
[pid 19612] close(3)                    = 0
[pid 19612] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19612] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19612] write(4, "78", 2)           = 2
[pid 19612] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19612] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19612] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19612] exit_group(0)               = ?
[pid 19612] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19612, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19613 attached
, child_tidptr=0x555555af35d0) = 19613
[pid 19613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19613] setpgid(0, 0)               = 0
[pid 19613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19613] write(3, "1000", 4)         = 4
[pid 19613] close(3)                    = 0
[pid 19613] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19613] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19613] write(4, "78", 2)           = 2
[pid 19613] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19613] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19613] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19613] exit_group(0)               = ?
[pid 19613] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19613, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19614 attached
, child_tidptr=0x555555af35d0) = 19614
[pid 19614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19614] setpgid(0, 0)               = 0
[pid 19614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19614] write(3, "1000", 4)         = 4
[pid 19614] close(3)                    = 0
[pid 19614] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19614] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19614] write(4, "78", 2)           = 2
[pid 19614] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19614] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19614] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19614] exit_group(0)               = ?
[pid 19614] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19614, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19615 attached
, child_tidptr=0x555555af35d0) = 19615
[pid 19615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19615] setpgid(0, 0)               = 0
[pid 19615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19615] write(3, "1000", 4)         = 4
[pid 19615] close(3)                    = 0
[pid 19615] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19615] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19615] write(4, "78", 2)           = 2
[pid 19615] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19615] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19615] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19615] exit_group(0)               = ?
[pid 19615] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19615, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19616
./strace-static-x86_64: Process 19616 attached
[pid 19616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19616] setpgid(0, 0)               = 0
[pid 19616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19616] write(3, "1000", 4)         = 4
[pid 19616] close(3)                    = 0
[pid 19616] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19616] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19616] write(4, "78", 2)           = 2
[pid 19616] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19616] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19616] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19616] exit_group(0)               = ?
[pid 19616] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19616, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19617 attached
, child_tidptr=0x555555af35d0) = 19617
[pid 19617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19617] setpgid(0, 0)               = 0
[pid 19617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19617] write(3, "1000", 4)         = 4
[pid 19617] close(3)                    = 0
[pid 19617] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19617] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19617] write(4, "78", 2)           = 2
[pid 19617] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19617] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19617] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19617] exit_group(0)               = ?
[pid 19617] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19617, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19618 attached
, child_tidptr=0x555555af35d0) = 19618
[pid 19618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19618] setpgid(0, 0)               = 0
[pid 19618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19618] write(3, "1000", 4)         = 4
[pid 19618] close(3)                    = 0
[pid 19618] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19618] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19618] write(4, "78", 2)           = 2
[pid 19618] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19618] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19618] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19618] exit_group(0)               = ?
[pid 19618] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19618, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19619 attached
, child_tidptr=0x555555af35d0) = 19619
[pid 19619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19619] setpgid(0, 0)               = 0
[pid 19619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19619] write(3, "1000", 4)         = 4
[pid 19619] close(3)                    = 0
[pid 19619] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19619] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19619] write(4, "78", 2)           = 2
[pid 19619] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19619] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19619] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19619] exit_group(0)               = ?
[pid 19619] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19619, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19620 attached
, child_tidptr=0x555555af35d0) = 19620
[pid 19620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19620] setpgid(0, 0)               = 0
[pid 19620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19620] write(3, "1000", 4)         = 4
[pid 19620] close(3)                    = 0
[pid 19620] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19620] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19620] write(4, "78", 2)           = 2
[pid 19620] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19620] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19620] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19620] exit_group(0)               = ?
[pid 19620] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19620, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19621 attached
, child_tidptr=0x555555af35d0) = 19621
[pid 19621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19621] setpgid(0, 0)               = 0
[pid 19621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19621] write(3, "1000", 4)         = 4
[pid 19621] close(3)                    = 0
[pid 19621] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19621] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19621] write(4, "78", 2)           = 2
[pid 19621] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19621] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19621] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19621] exit_group(0)               = ?
[pid 19621] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19621, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19622 attached
, child_tidptr=0x555555af35d0) = 19622
[pid 19622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19622] setpgid(0, 0)               = 0
[pid 19622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19622] write(3, "1000", 4)         = 4
[pid 19622] close(3)                    = 0
[pid 19622] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19622] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19622] write(4, "78", 2)           = 2
[pid 19622] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19622] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19622] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19622] exit_group(0)               = ?
[pid 19622] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19622, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19623 attached
, child_tidptr=0x555555af35d0) = 19623
[pid 19623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19623] setpgid(0, 0)               = 0
[pid 19623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19623] write(3, "1000", 4)         = 4
[pid 19623] close(3)                    = 0
[pid 19623] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19623] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19623] write(4, "78", 2)           = 2
[pid 19623] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19623] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19623] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19623] exit_group(0)               = ?
[pid 19623] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19623, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19624 attached
, child_tidptr=0x555555af35d0) = 19624
[pid 19624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19624] setpgid(0, 0)               = 0
[pid 19624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19624] write(3, "1000", 4)         = 4
[pid 19624] close(3)                    = 0
[pid 19624] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19624] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19624] write(4, "78", 2)           = 2
[pid 19624] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19624] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19624] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19624] exit_group(0)               = ?
[pid 19624] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19624, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19625
./strace-static-x86_64: Process 19625 attached
[pid 19625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19625] setpgid(0, 0)               = 0
[pid 19625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19625] write(3, "1000", 4)         = 4
[pid 19625] close(3)                    = 0
[pid 19625] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19625] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19625] write(4, "78", 2)           = 2
[pid 19625] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19625] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19625] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19625] exit_group(0)               = ?
[pid 19625] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19625, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19626 attached
, child_tidptr=0x555555af35d0) = 19626
[pid 19626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19626] setpgid(0, 0)               = 0
[pid 19626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19626] write(3, "1000", 4)         = 4
[pid 19626] close(3)                    = 0
[pid 19626] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19626] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19626] write(4, "78", 2)           = 2
[pid 19626] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19626] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19626] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19626] exit_group(0)               = ?
[pid 19626] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19626, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19627 attached
, child_tidptr=0x555555af35d0) = 19627
[pid 19627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19627] setpgid(0, 0)               = 0
[pid 19627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19627] write(3, "1000", 4)         = 4
[pid 19627] close(3)                    = 0
[pid 19627] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19627] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19627] write(4, "78", 2)           = 2
[pid 19627] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19627] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19627] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19627] exit_group(0)               = ?
[pid 19627] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19627, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19628
./strace-static-x86_64: Process 19628 attached
[pid 19628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19628] setpgid(0, 0)               = 0
[pid 19628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19628] write(3, "1000", 4)         = 4
[pid 19628] close(3)                    = 0
[pid 19628] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19628] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19628] write(4, "78", 2)           = 2
[pid 19628] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19628] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19628] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19628] exit_group(0)               = ?
[pid 19628] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19628, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19629
./strace-static-x86_64: Process 19629 attached
[pid 19629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19629] setpgid(0, 0)               = 0
[pid 19629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19629] write(3, "1000", 4)         = 4
[pid 19629] close(3)                    = 0
[pid 19629] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19629] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19629] write(4, "78", 2)           = 2
[pid 19629] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19629] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19629] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19629] exit_group(0)               = ?
[pid 19629] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19629, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19630 attached
, child_tidptr=0x555555af35d0) = 19630
[pid 19630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19630] setpgid(0, 0)               = 0
[pid 19630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19630] write(3, "1000", 4)         = 4
[pid 19630] close(3)                    = 0
[pid 19630] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19630] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19630] write(4, "78", 2)           = 2
[pid 19630] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19630] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19630] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19630] exit_group(0)               = ?
[pid 19630] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19630, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19631
./strace-static-x86_64: Process 19631 attached
[pid 19631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19631] setpgid(0, 0)               = 0
[pid 19631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19631] write(3, "1000", 4)         = 4
[pid 19631] close(3)                    = 0
[pid 19631] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19631] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19631] write(4, "78", 2)           = 2
[pid 19631] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19631] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19631] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19631] exit_group(0)               = ?
[pid 19631] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19631, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19632 attached
, child_tidptr=0x555555af35d0) = 19632
[pid 19632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19632] setpgid(0, 0)               = 0
[pid 19632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19632] write(3, "1000", 4)         = 4
[pid 19632] close(3)                    = 0
[pid 19632] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19632] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19632] write(4, "78", 2)           = 2
[pid 19632] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19632] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19632] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19632] exit_group(0)               = ?
[pid 19632] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19632, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19633 attached
, child_tidptr=0x555555af35d0) = 19633
[pid 19633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19633] setpgid(0, 0)               = 0
[pid 19633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19633] write(3, "1000", 4)         = 4
[pid 19633] close(3)                    = 0
[pid 19633] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19633] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19633] write(4, "78", 2)           = 2
[pid 19633] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19633] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19633] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19633] exit_group(0)               = ?
[pid 19633] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19633, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19634 attached
, child_tidptr=0x555555af35d0) = 19634
[pid 19634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19634] setpgid(0, 0)               = 0
[pid 19634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19634] write(3, "1000", 4)         = 4
[pid 19634] close(3)                    = 0
[pid 19634] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19634] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19634] write(4, "78", 2)           = 2
[pid 19634] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19634] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19634] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19634] exit_group(0)               = ?
[pid 19634] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19634, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19635 attached
, child_tidptr=0x555555af35d0) = 19635
[pid 19635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19635] setpgid(0, 0)               = 0
[pid 19635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19635] write(3, "1000", 4)         = 4
[pid 19635] close(3)                    = 0
[pid 19635] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19635] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19635] write(4, "78", 2)           = 2
[pid 19635] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19635] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19635] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19635] exit_group(0)               = ?
[pid 19635] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19635, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19636 attached
, child_tidptr=0x555555af35d0) = 19636
[pid 19636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19636] setpgid(0, 0)               = 0
[pid 19636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19636] write(3, "1000", 4)         = 4
[pid 19636] close(3)                    = 0
[pid 19636] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19636] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19636] write(4, "78", 2)           = 2
[pid 19636] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19636] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19636] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19636] exit_group(0)               = ?
[pid 19636] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19636, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19637
./strace-static-x86_64: Process 19637 attached
[pid 19637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19637] setpgid(0, 0)               = 0
[pid 19637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19637] write(3, "1000", 4)         = 4
[pid 19637] close(3)                    = 0
[pid 19637] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19637] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19637] write(4, "78", 2)           = 2
[pid 19637] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19637] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19637] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19637] exit_group(0)               = ?
[pid 19637] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19637, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19638 attached
, child_tidptr=0x555555af35d0) = 19638
[pid 19638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19638] setpgid(0, 0)               = 0
[pid 19638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19638] write(3, "1000", 4)         = 4
[pid 19638] close(3)                    = 0
[pid 19638] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19638] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19638] write(4, "78", 2)           = 2
[pid 19638] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19638] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19638] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19638] exit_group(0)               = ?
[pid 19638] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19638, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19639 attached
, child_tidptr=0x555555af35d0) = 19639
[pid 19639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19639] setpgid(0, 0)               = 0
[pid 19639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19639] write(3, "1000", 4)         = 4
[pid 19639] close(3)                    = 0
[pid 19639] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19639] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19639] write(4, "78", 2)           = 2
[pid 19639] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19639] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19639] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19639] exit_group(0)               = ?
[pid 19639] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19639, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19640
./strace-static-x86_64: Process 19640 attached
[pid 19640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19640] setpgid(0, 0)               = 0
[pid 19640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19640] write(3, "1000", 4)         = 4
[pid 19640] close(3)                    = 0
[pid 19640] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19640] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19640] write(4, "78", 2)           = 2
[pid 19640] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19640] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19640] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19640] exit_group(0)               = ?
[pid 19640] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19640, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19641 attached
, child_tidptr=0x555555af35d0) = 19641
[pid 19641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19641] setpgid(0, 0)               = 0
[pid 19641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19641] write(3, "1000", 4)         = 4
[pid 19641] close(3)                    = 0
[pid 19641] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19641] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19641] write(4, "78", 2)           = 2
[pid 19641] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19641] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19641] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19641] exit_group(0)               = ?
[pid 19641] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19641, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19642 attached
, child_tidptr=0x555555af35d0) = 19642
[pid 19642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19642] setpgid(0, 0)               = 0
[pid 19642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19642] write(3, "1000", 4)         = 4
[pid 19642] close(3)                    = 0
[pid 19642] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19642] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19642] write(4, "78", 2)           = 2
[pid 19642] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19642] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19642] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19642] exit_group(0)               = ?
[pid 19642] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19642, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19643 attached
, child_tidptr=0x555555af35d0) = 19643
[pid 19643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19643] setpgid(0, 0)               = 0
[pid 19643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19643] write(3, "1000", 4)         = 4
[pid 19643] close(3)                    = 0
[pid 19643] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19643] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19643] write(4, "78", 2)           = 2
[pid 19643] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19643] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19643] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19643] exit_group(0)               = ?
[pid 19643] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19643, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19644 attached
, child_tidptr=0x555555af35d0) = 19644
[pid 19644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19644] setpgid(0, 0)               = 0
[pid 19644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19644] write(3, "1000", 4)         = 4
[pid 19644] close(3)                    = 0
[pid 19644] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19644] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19644] write(4, "78", 2)           = 2
[pid 19644] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19644] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19644] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19644] exit_group(0)               = ?
[pid 19644] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19644, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19645 attached
, child_tidptr=0x555555af35d0) = 19645
[pid 19645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19645] setpgid(0, 0)               = 0
[pid 19645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19645] write(3, "1000", 4)         = 4
[pid 19645] close(3)                    = 0
[pid 19645] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19645] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19645] write(4, "78", 2)           = 2
[pid 19645] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19645] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19645] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19645] exit_group(0)               = ?
[pid 19645] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19645, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19646 attached
, child_tidptr=0x555555af35d0) = 19646
[pid 19646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19646] setpgid(0, 0)               = 0
[pid 19646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19646] write(3, "1000", 4)         = 4
[pid 19646] close(3)                    = 0
[pid 19646] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19646] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19646] write(4, "78", 2)           = 2
[pid 19646] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19646] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19646] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19646] exit_group(0)               = ?
[pid 19646] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19646, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19647 attached
, child_tidptr=0x555555af35d0) = 19647
[pid 19647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19647] setpgid(0, 0)               = 0
[pid 19647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19647] write(3, "1000", 4)         = 4
[pid 19647] close(3)                    = 0
[pid 19647] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19647] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19647] write(4, "78", 2)           = 2
[pid 19647] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19647] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19647] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19647] exit_group(0)               = ?
[pid 19647] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19647, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19648 attached
, child_tidptr=0x555555af35d0) = 19648
[pid 19648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19648] setpgid(0, 0)               = 0
[pid 19648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19648] write(3, "1000", 4)         = 4
[pid 19648] close(3)                    = 0
[pid 19648] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19648] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19648] write(4, "78", 2)           = 2
[pid 19648] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19648] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19648] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19648] exit_group(0)               = ?
[pid 19648] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19648, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19649 attached
, child_tidptr=0x555555af35d0) = 19649
[pid 19649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19649] setpgid(0, 0)               = 0
[pid 19649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19649] write(3, "1000", 4)         = 4
[pid 19649] close(3)                    = 0
[pid 19649] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19649] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19649] write(4, "78", 2)           = 2
[pid 19649] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19649] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19649] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19649] exit_group(0)               = ?
[pid 19649] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19649, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19650 attached
, child_tidptr=0x555555af35d0) = 19650
[pid 19650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19650] setpgid(0, 0)               = 0
[pid 19650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19650] write(3, "1000", 4)         = 4
[pid 19650] close(3)                    = 0
[pid 19650] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19650] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19650] write(4, "78", 2)           = 2
[pid 19650] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19650] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19650] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19650] exit_group(0)               = ?
[pid 19650] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19650, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19651 attached
, child_tidptr=0x555555af35d0) = 19651
[pid 19651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19651] setpgid(0, 0)               = 0
[pid 19651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19651] write(3, "1000", 4)         = 4
[pid 19651] close(3)                    = 0
[pid 19651] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19651] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19651] write(4, "78", 2)           = 2
[pid 19651] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19651] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19651] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19651] exit_group(0)               = ?
[pid 19651] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19651, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19652 attached
, child_tidptr=0x555555af35d0) = 19652
[pid 19652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19652] setpgid(0, 0)               = 0
[pid 19652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19652] write(3, "1000", 4)         = 4
[pid 19652] close(3)                    = 0
[pid 19652] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19652] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19652] write(4, "78", 2)           = 2
[pid 19652] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19652] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19652] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19652] exit_group(0)               = ?
[pid 19652] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19652, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19653
./strace-static-x86_64: Process 19653 attached
[pid 19653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19653] setpgid(0, 0)               = 0
[pid 19653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19653] write(3, "1000", 4)         = 4
[pid 19653] close(3)                    = 0
[pid 19653] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19653] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19653] write(4, "78", 2)           = 2
[pid 19653] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19653] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19653] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19653] exit_group(0)               = ?
[pid 19653] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19653, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19654
./strace-static-x86_64: Process 19654 attached
[pid 19654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19654] setpgid(0, 0)               = 0
[pid 19654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19654] write(3, "1000", 4)         = 4
[pid 19654] close(3)                    = 0
[pid 19654] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19654] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19654] write(4, "78", 2)           = 2
[pid 19654] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19654] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19654] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19654] exit_group(0)               = ?
[pid 19654] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19654, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19655 attached
, child_tidptr=0x555555af35d0) = 19655
[pid 19655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19655] setpgid(0, 0)               = 0
[pid 19655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19655] write(3, "1000", 4)         = 4
[pid 19655] close(3)                    = 0
[pid 19655] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19655] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19655] write(4, "78", 2)           = 2
[pid 19655] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19655] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19655] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19655] exit_group(0)               = ?
[pid 19655] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19655, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19656 attached
, child_tidptr=0x555555af35d0) = 19656
[pid 19656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19656] setpgid(0, 0)               = 0
[pid 19656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19656] write(3, "1000", 4)         = 4
[pid 19656] close(3)                    = 0
[pid 19656] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19656] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19656] write(4, "78", 2)           = 2
[pid 19656] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19656] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19656] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19656] exit_group(0)               = ?
[pid 19656] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19656, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19657 attached
, child_tidptr=0x555555af35d0) = 19657
[pid 19657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19657] setpgid(0, 0)               = 0
[pid 19657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19657] write(3, "1000", 4)         = 4
[pid 19657] close(3)                    = 0
[pid 19657] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19657] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19657] write(4, "78", 2)           = 2
[pid 19657] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19657] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19657] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19657] exit_group(0)               = ?
[pid 19657] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19657, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19658
./strace-static-x86_64: Process 19658 attached
[pid 19658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19658] setpgid(0, 0)               = 0
[pid 19658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19658] write(3, "1000", 4)         = 4
[pid 19658] close(3)                    = 0
[pid 19658] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19658] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19658] write(4, "78", 2)           = 2
[pid 19658] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19658] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19658] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19658] exit_group(0)               = ?
[pid 19658] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19658, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19659
./strace-static-x86_64: Process 19659 attached
[pid 19659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19659] setpgid(0, 0)               = 0
[pid 19659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19659] write(3, "1000", 4)         = 4
[pid 19659] close(3)                    = 0
[pid 19659] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19659] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19659] write(4, "78", 2)           = 2
[pid 19659] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19659] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19659] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19659] exit_group(0)               = ?
[pid 19659] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19659, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19660 attached
, child_tidptr=0x555555af35d0) = 19660
[pid 19660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19660] setpgid(0, 0)               = 0
[pid 19660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19660] write(3, "1000", 4)         = 4
[pid 19660] close(3)                    = 0
[pid 19660] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19660] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19660] write(4, "78", 2)           = 2
[pid 19660] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19660] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19660] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19660] exit_group(0)               = ?
[pid 19660] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19660, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19661
./strace-static-x86_64: Process 19661 attached
[pid 19661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19661] setpgid(0, 0)               = 0
[pid 19661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19661] write(3, "1000", 4)         = 4
[pid 19661] close(3)                    = 0
[pid 19661] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19661] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19661] write(4, "78", 2)           = 2
[pid 19661] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19661] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19661] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19661] exit_group(0)               = ?
[pid 19661] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19661, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19662 attached
, child_tidptr=0x555555af35d0) = 19662
[pid 19662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19662] setpgid(0, 0)               = 0
[pid 19662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19662] write(3, "1000", 4)         = 4
[pid 19662] close(3)                    = 0
[pid 19662] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19662] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19662] write(4, "78", 2)           = 2
[pid 19662] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19662] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19662] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19662] exit_group(0)               = ?
[pid 19662] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19662, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19663 attached
, child_tidptr=0x555555af35d0) = 19663
[pid 19663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19663] setpgid(0, 0)               = 0
[pid 19663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19663] write(3, "1000", 4)         = 4
[pid 19663] close(3)                    = 0
[pid 19663] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19663] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19663] write(4, "78", 2)           = 2
[pid 19663] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19663] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19663] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19663] exit_group(0)               = ?
[pid 19663] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19663, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19664 attached
, child_tidptr=0x555555af35d0) = 19664
[pid 19664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19664] setpgid(0, 0)               = 0
[pid 19664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19664] write(3, "1000", 4)         = 4
[pid 19664] close(3)                    = 0
[pid 19664] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19664] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19664] write(4, "78", 2)           = 2
[pid 19664] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19664] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19664] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19664] exit_group(0)               = ?
[pid 19664] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19664, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19665 attached
, child_tidptr=0x555555af35d0) = 19665
[pid 19665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19665] setpgid(0, 0)               = 0
[pid 19665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19665] write(3, "1000", 4)         = 4
[pid 19665] close(3)                    = 0
[pid 19665] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19665] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19665] write(4, "78", 2)           = 2
[pid 19665] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19665] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19665] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19665] exit_group(0)               = ?
[pid 19665] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19665, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19666 attached
, child_tidptr=0x555555af35d0) = 19666
[pid 19666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19666] setpgid(0, 0)               = 0
[pid 19666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19666] write(3, "1000", 4)         = 4
[pid 19666] close(3)                    = 0
[pid 19666] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19666] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19666] write(4, "78", 2)           = 2
[pid 19666] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19666] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19666] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19666] exit_group(0)               = ?
[pid 19666] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19666, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19667 attached
, child_tidptr=0x555555af35d0) = 19667
[pid 19667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19667] setpgid(0, 0)               = 0
[pid 19667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19667] write(3, "1000", 4)         = 4
[pid 19667] close(3)                    = 0
[pid 19667] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19667] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19667] write(4, "78", 2)           = 2
[pid 19667] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19667] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19667] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19667] exit_group(0)               = ?
[pid 19667] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19667, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19668 attached
, child_tidptr=0x555555af35d0) = 19668
[pid 19668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19668] setpgid(0, 0)               = 0
[pid 19668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19668] write(3, "1000", 4)         = 4
[pid 19668] close(3)                    = 0
[pid 19668] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19668] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19668] write(4, "78", 2)           = 2
[pid 19668] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19668] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19668] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19668] exit_group(0)               = ?
[pid 19668] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19668, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19669 attached
, child_tidptr=0x555555af35d0) = 19669
[pid 19669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19669] setpgid(0, 0)               = 0
[pid 19669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19669] write(3, "1000", 4)         = 4
[pid 19669] close(3)                    = 0
[pid 19669] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19669] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19669] write(4, "78", 2)           = 2
[pid 19669] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19669] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19669] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19669] exit_group(0)               = ?
[pid 19669] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19669, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19670 attached
, child_tidptr=0x555555af35d0) = 19670
[pid 19670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19670] setpgid(0, 0)               = 0
[pid 19670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19670] write(3, "1000", 4)         = 4
[pid 19670] close(3)                    = 0
[pid 19670] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19670] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19670] write(4, "78", 2)           = 2
[pid 19670] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19670] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19670] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19670] exit_group(0)               = ?
[pid 19670] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19670, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19671
./strace-static-x86_64: Process 19671 attached
[pid 19671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19671] setpgid(0, 0)               = 0
[pid 19671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19671] write(3, "1000", 4)         = 4
[pid 19671] close(3)                    = 0
[pid 19671] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19671] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19671] write(4, "78", 2)           = 2
[pid 19671] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19671] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19671] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19671] exit_group(0)               = ?
[pid 19671] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19671, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19672 attached
, child_tidptr=0x555555af35d0) = 19672
[pid 19672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19672] setpgid(0, 0)               = 0
[pid 19672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19672] write(3, "1000", 4)         = 4
[pid 19672] close(3)                    = 0
[pid 19672] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19672] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19672] write(4, "78", 2)           = 2
[pid 19672] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19672] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19672] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19672] exit_group(0)               = ?
[pid 19672] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19672, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19673 attached
, child_tidptr=0x555555af35d0) = 19673
[pid 19673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19673] setpgid(0, 0)               = 0
[pid 19673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19673] write(3, "1000", 4)         = 4
[pid 19673] close(3)                    = 0
[pid 19673] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19673] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19673] write(4, "78", 2)           = 2
[pid 19673] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19673] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19673] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19673] exit_group(0)               = ?
[pid 19673] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19673, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19674 attached
, child_tidptr=0x555555af35d0) = 19674
[pid 19674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19674] setpgid(0, 0)               = 0
[pid 19674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19674] write(3, "1000", 4)         = 4
[pid 19674] close(3)                    = 0
[pid 19674] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19674] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19674] write(4, "78", 2)           = 2
[pid 19674] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19674] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19674] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19674] exit_group(0)               = ?
[pid 19674] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19674, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19675 attached
, child_tidptr=0x555555af35d0) = 19675
[pid 19675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19675] setpgid(0, 0)               = 0
[pid 19675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19675] write(3, "1000", 4)         = 4
[pid 19675] close(3)                    = 0
[pid 19675] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19675] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19675] write(4, "78", 2)           = 2
[pid 19675] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19675] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19675] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19675] exit_group(0)               = ?
[pid 19675] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19675, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19676 attached
, child_tidptr=0x555555af35d0) = 19676
[pid 19676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19676] setpgid(0, 0)               = 0
[pid 19676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19676] write(3, "1000", 4)         = 4
[pid 19676] close(3)                    = 0
[pid 19676] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19676] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19676] write(4, "78", 2)           = 2
[pid 19676] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19676] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19676] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19676] exit_group(0)               = ?
[pid 19676] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19676, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19677 attached
, child_tidptr=0x555555af35d0) = 19677
[pid 19677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19677] setpgid(0, 0)               = 0
[pid 19677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19677] write(3, "1000", 4)         = 4
[pid 19677] close(3)                    = 0
[pid 19677] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19677] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19677] write(4, "78", 2)           = 2
[pid 19677] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19677] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19677] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19677] exit_group(0)               = ?
[pid 19677] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19677, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19678 attached
, child_tidptr=0x555555af35d0) = 19678
[pid 19678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19678] setpgid(0, 0)               = 0
[pid 19678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19678] write(3, "1000", 4)         = 4
[pid 19678] close(3)                    = 0
[pid 19678] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19678] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19678] write(4, "78", 2)           = 2
[pid 19678] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19678] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19678] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19678] exit_group(0)               = ?
[pid 19678] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19678, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19679 attached
, child_tidptr=0x555555af35d0) = 19679
[pid 19679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19679] setpgid(0, 0)               = 0
[pid 19679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19679] write(3, "1000", 4)         = 4
[pid 19679] close(3)                    = 0
[pid 19679] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19679] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19679] write(4, "78", 2)           = 2
[pid 19679] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19679] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19679] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19679] exit_group(0)               = ?
[pid 19679] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19679, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19680 attached
, child_tidptr=0x555555af35d0) = 19680
[pid 19680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19680] setpgid(0, 0)               = 0
[pid 19680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19680] write(3, "1000", 4)         = 4
[pid 19680] close(3)                    = 0
[pid 19680] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19680] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19680] write(4, "78", 2)           = 2
[pid 19680] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19680] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19680] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19680] exit_group(0)               = ?
[pid 19680] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19680, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19681 attached
, child_tidptr=0x555555af35d0) = 19681
[pid 19681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19681] setpgid(0, 0)               = 0
[pid 19681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19681] write(3, "1000", 4)         = 4
[pid 19681] close(3)                    = 0
[pid 19681] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19681] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19681] write(4, "78", 2)           = 2
[pid 19681] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19681] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19681] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19681] exit_group(0)               = ?
[pid 19681] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19681, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19682 attached
, child_tidptr=0x555555af35d0) = 19682
[pid 19682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19682] setpgid(0, 0)               = 0
[pid 19682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19682] write(3, "1000", 4)         = 4
[pid 19682] close(3)                    = 0
[pid 19682] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19682] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19682] write(4, "78", 2)           = 2
[pid 19682] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19682] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19682] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19682] exit_group(0)               = ?
[pid 19682] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19682, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19683 attached
, child_tidptr=0x555555af35d0) = 19683
[pid 19683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19683] setpgid(0, 0)               = 0
[pid 19683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19683] write(3, "1000", 4)         = 4
[pid 19683] close(3)                    = 0
[pid 19683] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19683] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19683] write(4, "78", 2)           = 2
[pid 19683] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19683] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19683] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19683] exit_group(0)               = ?
[pid 19683] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19683, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19684 attached
, child_tidptr=0x555555af35d0) = 19684
[pid 19684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19684] setpgid(0, 0)               = 0
[pid 19684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19684] write(3, "1000", 4)         = 4
[pid 19684] close(3)                    = 0
[pid 19684] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19684] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19684] write(4, "78", 2)           = 2
[pid 19684] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19684] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19684] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19684] exit_group(0)               = ?
[pid 19684] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19684, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19685 attached
, child_tidptr=0x555555af35d0) = 19685
[pid 19685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19685] setpgid(0, 0)               = 0
[pid 19685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19685] write(3, "1000", 4)         = 4
[pid 19685] close(3)                    = 0
[pid 19685] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19685] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19685] write(4, "78", 2)           = 2
[pid 19685] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19685] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19685] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19685] exit_group(0)               = ?
[pid 19685] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19685, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19686 attached
, child_tidptr=0x555555af35d0) = 19686
[pid 19686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19686] setpgid(0, 0)               = 0
[pid 19686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19686] write(3, "1000", 4)         = 4
[pid 19686] close(3)                    = 0
[pid 19686] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19686] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19686] write(4, "78", 2)           = 2
[pid 19686] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19686] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19686] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19686] exit_group(0)               = ?
[pid 19686] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19686, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19687 attached
, child_tidptr=0x555555af35d0) = 19687
[pid 19687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19687] setpgid(0, 0)               = 0
[pid 19687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19687] write(3, "1000", 4)         = 4
[pid 19687] close(3)                    = 0
[pid 19687] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19687] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19687] write(4, "78", 2)           = 2
[pid 19687] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19687] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19687] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19687] exit_group(0)               = ?
[pid 19687] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19687, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19688 attached
, child_tidptr=0x555555af35d0) = 19688
[pid 19688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19688] setpgid(0, 0)               = 0
[pid 19688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19688] write(3, "1000", 4)         = 4
[pid 19688] close(3)                    = 0
[pid 19688] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19688] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19688] write(4, "78", 2)           = 2
[pid 19688] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19688] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19688] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19688] exit_group(0)               = ?
[pid 19688] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19688, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19689 attached
, child_tidptr=0x555555af35d0) = 19689
[pid 19689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19689] setpgid(0, 0)               = 0
[pid 19689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19689] write(3, "1000", 4)         = 4
[pid 19689] close(3)                    = 0
[pid 19689] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19689] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19689] write(4, "78", 2)           = 2
[pid 19689] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19689] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19689] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19689] exit_group(0)               = ?
[pid 19689] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19689, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19690 attached
, child_tidptr=0x555555af35d0) = 19690
[pid 19690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19690] setpgid(0, 0)               = 0
[pid 19690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19690] write(3, "1000", 4)         = 4
[pid 19690] close(3)                    = 0
[pid 19690] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19690] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19690] write(4, "78", 2)           = 2
[pid 19690] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19690] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19690] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19690] exit_group(0)               = ?
[pid 19690] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19690, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19691 attached
, child_tidptr=0x555555af35d0) = 19691
[pid 19691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19691] setpgid(0, 0)               = 0
[pid 19691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19691] write(3, "1000", 4)         = 4
[pid 19691] close(3)                    = 0
[pid 19691] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19691] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19691] write(4, "78", 2)           = 2
[pid 19691] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19691] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19691] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19691] exit_group(0)               = ?
[pid 19691] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19691, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19692 attached
, child_tidptr=0x555555af35d0) = 19692
[pid 19692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19692] setpgid(0, 0)               = 0
[pid 19692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19692] write(3, "1000", 4)         = 4
[pid 19692] close(3)                    = 0
[pid 19692] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19692] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19692] write(4, "78", 2)           = 2
[pid 19692] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19692] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19692] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19692] exit_group(0)               = ?
[pid 19692] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19692, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19693 attached
, child_tidptr=0x555555af35d0) = 19693
[pid 19693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19693] setpgid(0, 0)               = 0
[pid 19693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19693] write(3, "1000", 4)         = 4
[pid 19693] close(3)                    = 0
[pid 19693] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19693] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19693] write(4, "78", 2)           = 2
[pid 19693] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19693] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19693] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19693] exit_group(0)               = ?
[pid 19693] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19693, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19694 attached
, child_tidptr=0x555555af35d0) = 19694
[pid 19694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19694] setpgid(0, 0)               = 0
[pid 19694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19694] write(3, "1000", 4)         = 4
[pid 19694] close(3)                    = 0
[pid 19694] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19694] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19694] write(4, "78", 2)           = 2
[pid 19694] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19694] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19694] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19694] exit_group(0)               = ?
[pid 19694] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19694, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19695 attached
, child_tidptr=0x555555af35d0) = 19695
[pid 19695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19695] setpgid(0, 0)               = 0
[pid 19695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19695] write(3, "1000", 4)         = 4
[pid 19695] close(3)                    = 0
[pid 19695] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19695] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19695] write(4, "78", 2)           = 2
[pid 19695] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19695] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19695] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19695] exit_group(0)               = ?
[pid 19695] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19695, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19696 attached
, child_tidptr=0x555555af35d0) = 19696
[pid 19696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19696] setpgid(0, 0)               = 0
[pid 19696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19696] write(3, "1000", 4)         = 4
[pid 19696] close(3)                    = 0
[pid 19696] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19696] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19696] write(4, "78", 2)           = 2
[pid 19696] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19696] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19696] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19696] exit_group(0)               = ?
[pid 19696] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19696, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19697 attached
, child_tidptr=0x555555af35d0) = 19697
[pid 19697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19697] setpgid(0, 0)               = 0
[pid 19697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19697] write(3, "1000", 4)         = 4
[pid 19697] close(3)                    = 0
[pid 19697] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19697] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19697] write(4, "78", 2)           = 2
[pid 19697] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19697] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19697] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19697] exit_group(0)               = ?
[pid 19697] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19697, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19698 attached
, child_tidptr=0x555555af35d0) = 19698
[pid 19698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19698] setpgid(0, 0)               = 0
[pid 19698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19698] write(3, "1000", 4)         = 4
[pid 19698] close(3)                    = 0
[pid 19698] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19698] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19698] write(4, "78", 2)           = 2
[pid 19698] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19698] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19698] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19698] exit_group(0)               = ?
[pid 19698] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19698, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19699 attached
, child_tidptr=0x555555af35d0) = 19699
[pid 19699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19699] setpgid(0, 0)               = 0
[pid 19699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19699] write(3, "1000", 4)         = 4
[pid 19699] close(3)                    = 0
[pid 19699] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19699] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19699] write(4, "78", 2)           = 2
[pid 19699] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19699] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19699] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19699] exit_group(0)               = ?
[pid 19699] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19699, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19700 attached
, child_tidptr=0x555555af35d0) = 19700
[pid 19700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19700] setpgid(0, 0)               = 0
[pid 19700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19700] write(3, "1000", 4)         = 4
[pid 19700] close(3)                    = 0
[pid 19700] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19700] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19700] write(4, "78", 2)           = 2
[pid 19700] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19700] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19700] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19700] exit_group(0)               = ?
[pid 19700] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19700, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19701 attached
, child_tidptr=0x555555af35d0) = 19701
[pid 19701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19701] setpgid(0, 0)               = 0
[pid 19701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19701] write(3, "1000", 4)         = 4
[pid 19701] close(3)                    = 0
[pid 19701] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19701] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19701] write(4, "78", 2)           = 2
[pid 19701] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19701] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19701] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19701] exit_group(0)               = ?
[pid 19701] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19701, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19702 attached
, child_tidptr=0x555555af35d0) = 19702
[pid 19702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19702] setpgid(0, 0)               = 0
[pid 19702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19702] write(3, "1000", 4)         = 4
[pid 19702] close(3)                    = 0
[pid 19702] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19702] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19702] write(4, "78", 2)           = 2
[pid 19702] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19702] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19702] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19702] exit_group(0)               = ?
[pid 19702] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19702, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19703 attached
, child_tidptr=0x555555af35d0) = 19703
[pid 19703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19703] setpgid(0, 0)               = 0
[pid 19703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19703] write(3, "1000", 4)         = 4
[pid 19703] close(3)                    = 0
[pid 19703] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19703] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19703] write(4, "78", 2)           = 2
[pid 19703] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19703] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19703] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19703] exit_group(0)               = ?
[pid 19703] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19703, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19704 attached
, child_tidptr=0x555555af35d0) = 19704
[pid 19704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19704] setpgid(0, 0)               = 0
[pid 19704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19704] write(3, "1000", 4)         = 4
[pid 19704] close(3)                    = 0
[pid 19704] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19704] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19704] write(4, "78", 2)           = 2
[pid 19704] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19704] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19704] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19704] exit_group(0)               = ?
[pid 19704] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19704, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19705 attached
, child_tidptr=0x555555af35d0) = 19705
[pid 19705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19705] setpgid(0, 0)               = 0
[pid 19705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19705] write(3, "1000", 4)         = 4
[pid 19705] close(3)                    = 0
[pid 19705] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19705] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19705] write(4, "78", 2)           = 2
[pid 19705] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19705] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19705] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19705] exit_group(0)               = ?
[pid 19705] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19705, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19706 attached
, child_tidptr=0x555555af35d0) = 19706
[pid 19706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19706] setpgid(0, 0)               = 0
[pid 19706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19706] write(3, "1000", 4)         = 4
[pid 19706] close(3)                    = 0
[pid 19706] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19706] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19706] write(4, "78", 2)           = 2
[pid 19706] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19706] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19706] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19706] exit_group(0)               = ?
[pid 19706] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19706, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19707 attached
, child_tidptr=0x555555af35d0) = 19707
[pid 19707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19707] setpgid(0, 0)               = 0
[pid 19707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19707] write(3, "1000", 4)         = 4
[pid 19707] close(3)                    = 0
[pid 19707] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19707] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19707] write(4, "78", 2)           = 2
[pid 19707] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19707] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19707] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19707] exit_group(0)               = ?
[pid 19707] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19707, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19708 attached
, child_tidptr=0x555555af35d0) = 19708
[pid 19708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19708] setpgid(0, 0)               = 0
[pid 19708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19708] write(3, "1000", 4)         = 4
[pid 19708] close(3)                    = 0
[pid 19708] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19708] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19708] write(4, "78", 2)           = 2
[pid 19708] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19708] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19708] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19708] exit_group(0)               = ?
[pid 19708] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19708, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19709
./strace-static-x86_64: Process 19709 attached
[pid 19709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19709] setpgid(0, 0)               = 0
[pid 19709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19709] write(3, "1000", 4)         = 4
[pid 19709] close(3)                    = 0
[pid 19709] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19709] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19709] write(4, "78", 2)           = 2
[pid 19709] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19709] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19709] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19709] exit_group(0)               = ?
[pid 19709] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19709, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19710 attached
, child_tidptr=0x555555af35d0) = 19710
[pid 19710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19710] setpgid(0, 0)               = 0
[pid 19710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19710] write(3, "1000", 4)         = 4
[pid 19710] close(3)                    = 0
[pid 19710] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19710] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19710] write(4, "78", 2)           = 2
[pid 19710] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19710] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19710] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19710] exit_group(0)               = ?
[pid 19710] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19710, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19711 attached
, child_tidptr=0x555555af35d0) = 19711
[pid 19711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19711] setpgid(0, 0)               = 0
[pid 19711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19711] write(3, "1000", 4)         = 4
[pid 19711] close(3)                    = 0
[pid 19711] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19711] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19711] write(4, "78", 2)           = 2
[pid 19711] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19711] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19711] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19711] exit_group(0)               = ?
[pid 19711] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19711, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19712 attached
, child_tidptr=0x555555af35d0) = 19712
[pid 19712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19712] setpgid(0, 0)               = 0
[pid 19712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19712] write(3, "1000", 4)         = 4
[pid 19712] close(3)                    = 0
[pid 19712] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19712] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19712] write(4, "78", 2)           = 2
[pid 19712] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19712] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19712] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19712] exit_group(0)               = ?
[pid 19712] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19712, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19713 attached
, child_tidptr=0x555555af35d0) = 19713
[pid 19713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19713] setpgid(0, 0)               = 0
[pid 19713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19713] write(3, "1000", 4)         = 4
[pid 19713] close(3)                    = 0
[pid 19713] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19713] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19713] write(4, "78", 2)           = 2
[pid 19713] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19713] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19713] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19713] exit_group(0)               = ?
[pid 19713] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19713, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19714
./strace-static-x86_64: Process 19714 attached
[pid 19714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19714] setpgid(0, 0)               = 0
[pid 19714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19714] write(3, "1000", 4)         = 4
[pid 19714] close(3)                    = 0
[pid 19714] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19714] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19714] write(4, "78", 2)           = 2
[pid 19714] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19714] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19714] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19714] exit_group(0)               = ?
[pid 19714] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19714, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19715 attached
, child_tidptr=0x555555af35d0) = 19715
[pid 19715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19715] setpgid(0, 0)               = 0
[pid 19715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19715] write(3, "1000", 4)         = 4
[pid 19715] close(3)                    = 0
[pid 19715] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19715] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19715] write(4, "78", 2)           = 2
[pid 19715] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19715] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19715] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19715] exit_group(0)               = ?
[pid 19715] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19715, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19716 attached
, child_tidptr=0x555555af35d0) = 19716
[pid 19716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19716] setpgid(0, 0)               = 0
[pid 19716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19716] write(3, "1000", 4)         = 4
[pid 19716] close(3)                    = 0
[pid 19716] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19716] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19716] write(4, "78", 2)           = 2
[pid 19716] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19716] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19716] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19716] exit_group(0)               = ?
[pid 19716] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19716, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19717 attached
, child_tidptr=0x555555af35d0) = 19717
[pid 19717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19717] setpgid(0, 0)               = 0
[pid 19717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19717] write(3, "1000", 4)         = 4
[pid 19717] close(3)                    = 0
[pid 19717] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19717] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19717] write(4, "78", 2)           = 2
[pid 19717] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19717] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19717] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19717] exit_group(0)               = ?
[pid 19717] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19717, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19718 attached
, child_tidptr=0x555555af35d0) = 19718
[pid 19718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19718] setpgid(0, 0)               = 0
[pid 19718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19718] write(3, "1000", 4)         = 4
[pid 19718] close(3)                    = 0
[pid 19718] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19718] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19718] write(4, "78", 2)           = 2
[pid 19718] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19718] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19718] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19718] exit_group(0)               = ?
[pid 19718] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19718, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19719 attached
, child_tidptr=0x555555af35d0) = 19719
[pid 19719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19719] setpgid(0, 0)               = 0
[pid 19719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19719] write(3, "1000", 4)         = 4
[pid 19719] close(3)                    = 0
[pid 19719] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19719] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19719] write(4, "78", 2)           = 2
[pid 19719] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19719] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19719] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19719] exit_group(0)               = ?
[pid 19719] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19719, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19720 attached
, child_tidptr=0x555555af35d0) = 19720
[pid 19720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19720] setpgid(0, 0)               = 0
[pid 19720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19720] write(3, "1000", 4)         = 4
[pid 19720] close(3)                    = 0
[pid 19720] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19720] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19720] write(4, "78", 2)           = 2
[pid 19720] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19720] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19720] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19720] exit_group(0)               = ?
[pid 19720] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19720, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19721 attached
, child_tidptr=0x555555af35d0) = 19721
[pid 19721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19721] setpgid(0, 0)               = 0
[pid 19721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19721] write(3, "1000", 4)         = 4
[pid 19721] close(3)                    = 0
[pid 19721] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19721] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19721] write(4, "78", 2)           = 2
[pid 19721] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19721] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19721] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19721] exit_group(0)               = ?
[pid 19721] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19721, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19722 attached
, child_tidptr=0x555555af35d0) = 19722
[pid 19722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19722] setpgid(0, 0)               = 0
[pid 19722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19722] write(3, "1000", 4)         = 4
[pid 19722] close(3)                    = 0
[pid 19722] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19722] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19722] write(4, "78", 2)           = 2
[pid 19722] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19722] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19722] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19722] exit_group(0)               = ?
[pid 19722] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19722, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19723 attached
, child_tidptr=0x555555af35d0) = 19723
[pid 19723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19723] setpgid(0, 0)               = 0
[pid 19723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19723] write(3, "1000", 4)         = 4
[pid 19723] close(3)                    = 0
[pid 19723] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19723] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19723] write(4, "78", 2)           = 2
[pid 19723] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19723] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19723] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19723] exit_group(0)               = ?
[pid 19723] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19723, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19724 attached
, child_tidptr=0x555555af35d0) = 19724
[pid 19724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19724] setpgid(0, 0)               = 0
[pid 19724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19724] write(3, "1000", 4)         = 4
[pid 19724] close(3)                    = 0
[pid 19724] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19724] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19724] write(4, "78", 2)           = 2
[pid 19724] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19724] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19724] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19724] exit_group(0)               = ?
[pid 19724] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19724, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19725 attached
, child_tidptr=0x555555af35d0) = 19725
[pid 19725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19725] setpgid(0, 0)               = 0
[pid 19725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19725] write(3, "1000", 4)         = 4
[pid 19725] close(3)                    = 0
[pid 19725] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19725] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19725] write(4, "78", 2)           = 2
[pid 19725] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19725] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19725] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19725] exit_group(0)               = ?
[pid 19725] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19725, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19726 attached
, child_tidptr=0x555555af35d0) = 19726
[pid 19726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19726] setpgid(0, 0)               = 0
[pid 19726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19726] write(3, "1000", 4)         = 4
[pid 19726] close(3)                    = 0
[pid 19726] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19726] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19726] write(4, "78", 2)           = 2
[pid 19726] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19726] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19726] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19726] exit_group(0)               = ?
[pid 19726] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19726, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19727 attached
, child_tidptr=0x555555af35d0) = 19727
[pid 19727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19727] setpgid(0, 0)               = 0
[pid 19727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19727] write(3, "1000", 4)         = 4
[pid 19727] close(3)                    = 0
[pid 19727] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19727] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19727] write(4, "78", 2)           = 2
[pid 19727] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19727] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19727] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19727] exit_group(0)               = ?
[pid 19727] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19727, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19728
./strace-static-x86_64: Process 19728 attached
[pid 19728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19728] setpgid(0, 0)               = 0
[pid 19728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19728] write(3, "1000", 4)         = 4
[pid 19728] close(3)                    = 0
[pid 19728] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19728] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19728] write(4, "78", 2)           = 2
[pid 19728] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19728] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19728] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19728] exit_group(0)               = ?
[pid 19728] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19728, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19729 attached
, child_tidptr=0x555555af35d0) = 19729
[pid 19729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19729] setpgid(0, 0)               = 0
[pid 19729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19729] write(3, "1000", 4)         = 4
[pid 19729] close(3)                    = 0
[pid 19729] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19729] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19729] write(4, "78", 2)           = 2
[pid 19729] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19729] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19729] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19729] exit_group(0)               = ?
[pid 19729] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19729, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19730 attached
, child_tidptr=0x555555af35d0) = 19730
[pid 19730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19730] setpgid(0, 0)               = 0
[pid 19730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19730] write(3, "1000", 4)         = 4
[pid 19730] close(3)                    = 0
[pid 19730] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19730] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19730] write(4, "78", 2)           = 2
[pid 19730] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19730] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19730] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19730] exit_group(0)               = ?
[pid 19730] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19730, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19731
./strace-static-x86_64: Process 19731 attached
[pid 19731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19731] setpgid(0, 0)               = 0
[pid 19731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19731] write(3, "1000", 4)         = 4
[pid 19731] close(3)                    = 0
[pid 19731] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19731] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19731] write(4, "78", 2)           = 2
[pid 19731] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19731] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19731] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19731] exit_group(0)               = ?
[pid 19731] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19731, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19732
./strace-static-x86_64: Process 19732 attached
[pid 19732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19732] setpgid(0, 0)               = 0
[pid 19732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19732] write(3, "1000", 4)         = 4
[pid 19732] close(3)                    = 0
[pid 19732] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19732] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19732] write(4, "78", 2)           = 2
[pid 19732] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19732] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19732] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19732] exit_group(0)               = ?
[pid 19732] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19732, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19733
./strace-static-x86_64: Process 19733 attached
[pid 19733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19733] setpgid(0, 0)               = 0
[pid 19733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19733] write(3, "1000", 4)         = 4
[pid 19733] close(3)                    = 0
[pid 19733] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19733] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19733] write(4, "78", 2)           = 2
[pid 19733] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19733] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19733] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19733] exit_group(0)               = ?
[pid 19733] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19733, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19734
./strace-static-x86_64: Process 19734 attached
[pid 19734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19734] setpgid(0, 0)               = 0
[pid 19734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19734] write(3, "1000", 4)         = 4
[pid 19734] close(3)                    = 0
[pid 19734] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19734] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19734] write(4, "78", 2)           = 2
[pid 19734] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19734] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19734] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19734] exit_group(0)               = ?
[pid 19734] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19734, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19735
./strace-static-x86_64: Process 19735 attached
[pid 19735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19735] setpgid(0, 0)               = 0
[pid 19735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19735] write(3, "1000", 4)         = 4
[pid 19735] close(3)                    = 0
[pid 19735] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19735] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19735] write(4, "78", 2)           = 2
[pid 19735] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19735] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19735] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19735] exit_group(0)               = ?
[pid 19735] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19735, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19736 attached
, child_tidptr=0x555555af35d0) = 19736
[pid 19736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19736] setpgid(0, 0)               = 0
[pid 19736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19736] write(3, "1000", 4)         = 4
[pid 19736] close(3)                    = 0
[pid 19736] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19736] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19736] write(4, "78", 2)           = 2
[pid 19736] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19736] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19736] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19736] exit_group(0)               = ?
[pid 19736] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19736, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19737 attached
, child_tidptr=0x555555af35d0) = 19737
[pid 19737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19737] setpgid(0, 0)               = 0
[pid 19737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19737] write(3, "1000", 4)         = 4
[pid 19737] close(3)                    = 0
[pid 19737] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19737] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19737] write(4, "78", 2)           = 2
[pid 19737] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19737] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19737] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19737] exit_group(0)               = ?
[pid 19737] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19737, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19738
./strace-static-x86_64: Process 19738 attached
[pid 19738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19738] setpgid(0, 0)               = 0
[pid 19738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19738] write(3, "1000", 4)         = 4
[pid 19738] close(3)                    = 0
[pid 19738] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19738] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19738] write(4, "78", 2)           = 2
[pid 19738] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19738] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19738] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19738] exit_group(0)               = ?
[pid 19738] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19738, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19739
./strace-static-x86_64: Process 19739 attached
[pid 19739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19739] setpgid(0, 0)               = 0
[pid 19739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19739] write(3, "1000", 4)         = 4
[pid 19739] close(3)                    = 0
[pid 19739] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19739] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19739] write(4, "78", 2)           = 2
[pid 19739] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19739] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19739] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19739] exit_group(0)               = ?
[pid 19739] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19739, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19740 attached
, child_tidptr=0x555555af35d0) = 19740
[pid 19740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19740] setpgid(0, 0)               = 0
[pid 19740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19740] write(3, "1000", 4)         = 4
[pid 19740] close(3)                    = 0
[pid 19740] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19740] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19740] write(4, "78", 2)           = 2
[pid 19740] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19740] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19740] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19740] exit_group(0)               = ?
[pid 19740] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19740, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19741 attached
, child_tidptr=0x555555af35d0) = 19741
[pid 19741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19741] setpgid(0, 0)               = 0
[pid 19741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19741] write(3, "1000", 4)         = 4
[pid 19741] close(3)                    = 0
[pid 19741] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19741] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19741] write(4, "78", 2)           = 2
[pid 19741] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19741] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19741] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19741] exit_group(0)               = ?
[pid 19741] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19741, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19742 attached
, child_tidptr=0x555555af35d0) = 19742
[pid 19742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19742] setpgid(0, 0)               = 0
[pid 19742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19742] write(3, "1000", 4)         = 4
[pid 19742] close(3)                    = 0
[pid 19742] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19742] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19742] write(4, "78", 2)           = 2
[pid 19742] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19742] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19742] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19742] exit_group(0)               = ?
[pid 19742] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19742, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19743 attached
, child_tidptr=0x555555af35d0) = 19743
[pid 19743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19743] setpgid(0, 0)               = 0
[pid 19743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19743] write(3, "1000", 4)         = 4
[pid 19743] close(3)                    = 0
[pid 19743] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19743] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19743] write(4, "78", 2)           = 2
[pid 19743] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19743] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19743] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19743] exit_group(0)               = ?
[pid 19743] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19743, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19744
./strace-static-x86_64: Process 19744 attached
[pid 19744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19744] setpgid(0, 0)               = 0
[pid 19744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19744] write(3, "1000", 4)         = 4
[pid 19744] close(3)                    = 0
[pid 19744] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19744] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19744] write(4, "78", 2)           = 2
[pid 19744] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19744] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19744] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19744] exit_group(0)               = ?
[pid 19744] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19744, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19745 attached
, child_tidptr=0x555555af35d0) = 19745
[pid 19745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19745] setpgid(0, 0)               = 0
[pid 19745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19745] write(3, "1000", 4)         = 4
[pid 19745] close(3)                    = 0
[pid 19745] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19745] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19745] write(4, "78", 2)           = 2
[pid 19745] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19745] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19745] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19745] exit_group(0)               = ?
[pid 19745] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19745, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19746 attached
, child_tidptr=0x555555af35d0) = 19746
[pid 19746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19746] setpgid(0, 0)               = 0
[pid 19746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19746] write(3, "1000", 4)         = 4
[pid 19746] close(3)                    = 0
[pid 19746] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19746] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19746] write(4, "78", 2)           = 2
[pid 19746] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19746] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19746] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19746] exit_group(0)               = ?
[pid 19746] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19746, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19747
./strace-static-x86_64: Process 19747 attached
[pid 19747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19747] setpgid(0, 0)               = 0
[pid 19747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19747] write(3, "1000", 4)         = 4
[pid 19747] close(3)                    = 0
[pid 19747] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19747] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19747] write(4, "78", 2)           = 2
[pid 19747] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19747] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19747] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19747] exit_group(0)               = ?
[pid 19747] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19747, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19748 attached
, child_tidptr=0x555555af35d0) = 19748
[pid 19748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19748] setpgid(0, 0)               = 0
[pid 19748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19748] write(3, "1000", 4)         = 4
[pid 19748] close(3)                    = 0
[pid 19748] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19748] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19748] write(4, "78", 2)           = 2
[pid 19748] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19748] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19748] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19748] exit_group(0)               = ?
[pid 19748] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19748, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19749
./strace-static-x86_64: Process 19749 attached
[pid 19749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19749] setpgid(0, 0)               = 0
[pid 19749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19749] write(3, "1000", 4)         = 4
[pid 19749] close(3)                    = 0
[pid 19749] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19749] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19749] write(4, "78", 2)           = 2
[pid 19749] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19749] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19749] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19749] exit_group(0)               = ?
[pid 19749] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19749, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19750 attached
, child_tidptr=0x555555af35d0) = 19750
[pid 19750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19750] setpgid(0, 0)               = 0
[pid 19750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19750] write(3, "1000", 4)         = 4
[pid 19750] close(3)                    = 0
[pid 19750] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19750] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19750] write(4, "78", 2)           = 2
[pid 19750] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19750] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19750] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19750] exit_group(0)               = ?
[pid 19750] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19750, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19751 attached
, child_tidptr=0x555555af35d0) = 19751
[pid 19751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19751] setpgid(0, 0)               = 0
[pid 19751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19751] write(3, "1000", 4)         = 4
[pid 19751] close(3)                    = 0
[pid 19751] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19751] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19751] write(4, "78", 2)           = 2
[pid 19751] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19751] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19751] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19751] exit_group(0)               = ?
[pid 19751] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19751, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19752 attached
, child_tidptr=0x555555af35d0) = 19752
[pid 19752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19752] setpgid(0, 0)               = 0
[pid 19752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19752] write(3, "1000", 4)         = 4
[pid 19752] close(3)                    = 0
[pid 19752] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19752] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19752] write(4, "78", 2)           = 2
[pid 19752] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19752] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19752] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19752] exit_group(0)               = ?
[pid 19752] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19752, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19753 attached
, child_tidptr=0x555555af35d0) = 19753
[pid 19753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19753] setpgid(0, 0)               = 0
[pid 19753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19753] write(3, "1000", 4)         = 4
[pid 19753] close(3)                    = 0
[pid 19753] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19753] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19753] write(4, "78", 2)           = 2
[pid 19753] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19753] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19753] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19753] exit_group(0)               = ?
[pid 19753] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19753, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19754
./strace-static-x86_64: Process 19754 attached
[pid 19754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19754] setpgid(0, 0)               = 0
[pid 19754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19754] write(3, "1000", 4)         = 4
[pid 19754] close(3)                    = 0
[pid 19754] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19754] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19754] write(4, "78", 2)           = 2
[pid 19754] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19754] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19754] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19754] exit_group(0)               = ?
[pid 19754] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19754, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19755 attached
, child_tidptr=0x555555af35d0) = 19755
[pid 19755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19755] setpgid(0, 0)               = 0
[pid 19755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19755] write(3, "1000", 4)         = 4
[pid 19755] close(3)                    = 0
[pid 19755] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19755] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19755] write(4, "78", 2)           = 2
[pid 19755] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19755] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19755] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19755] exit_group(0)               = ?
[pid 19755] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19755, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19756 attached
, child_tidptr=0x555555af35d0) = 19756
[pid 19756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19756] setpgid(0, 0)               = 0
[pid 19756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19756] write(3, "1000", 4)         = 4
[pid 19756] close(3)                    = 0
[pid 19756] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19756] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19756] write(4, "78", 2)           = 2
[pid 19756] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19756] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19756] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19756] exit_group(0)               = ?
[pid 19756] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19756, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19757 attached
, child_tidptr=0x555555af35d0) = 19757
[pid 19757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19757] setpgid(0, 0)               = 0
[pid 19757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19757] write(3, "1000", 4)         = 4
[pid 19757] close(3)                    = 0
[pid 19757] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19757] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19757] write(4, "78", 2)           = 2
[pid 19757] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19757] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19757] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19757] exit_group(0)               = ?
[pid 19757] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19757, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19758 attached
, child_tidptr=0x555555af35d0) = 19758
[pid 19758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19758] setpgid(0, 0)               = 0
[pid 19758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19758] write(3, "1000", 4)         = 4
[pid 19758] close(3)                    = 0
[pid 19758] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19758] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19758] write(4, "78", 2)           = 2
[pid 19758] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19758] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19758] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19758] exit_group(0)               = ?
[pid 19758] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19758, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19759 attached
, child_tidptr=0x555555af35d0) = 19759
[pid 19759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19759] setpgid(0, 0)               = 0
[pid 19759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19759] write(3, "1000", 4)         = 4
[pid 19759] close(3)                    = 0
[pid 19759] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19759] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19759] write(4, "78", 2)           = 2
[pid 19759] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19759] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19759] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19759] exit_group(0)               = ?
[pid 19759] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19759, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19760 attached
, child_tidptr=0x555555af35d0) = 19760
[pid 19760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19760] setpgid(0, 0)               = 0
[pid 19760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19760] write(3, "1000", 4)         = 4
[pid 19760] close(3)                    = 0
[pid 19760] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19760] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19760] write(4, "78", 2)           = 2
[pid 19760] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19760] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19760] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19760] exit_group(0)               = ?
[pid 19760] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19760, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19761 attached
, child_tidptr=0x555555af35d0) = 19761
[pid 19761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19761] setpgid(0, 0)               = 0
[pid 19761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19761] write(3, "1000", 4)         = 4
[pid 19761] close(3)                    = 0
[pid 19761] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19761] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19761] write(4, "78", 2)           = 2
[pid 19761] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19761] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19761] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19761] exit_group(0)               = ?
[pid 19761] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19761, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19762 attached
, child_tidptr=0x555555af35d0) = 19762
[pid 19762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19762] setpgid(0, 0)               = 0
[pid 19762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19762] write(3, "1000", 4)         = 4
[pid 19762] close(3)                    = 0
[pid 19762] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19762] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19762] write(4, "78", 2)           = 2
[pid 19762] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19762] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19762] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19762] exit_group(0)               = ?
[pid 19762] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19762, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19763 attached
, child_tidptr=0x555555af35d0) = 19763
[pid 19763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19763] setpgid(0, 0)               = 0
[pid 19763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19763] write(3, "1000", 4)         = 4
[pid 19763] close(3)                    = 0
[pid 19763] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19763] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19763] write(4, "78", 2)           = 2
[pid 19763] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19763] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19763] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19763] exit_group(0)               = ?
[pid 19763] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19763, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19764 attached
, child_tidptr=0x555555af35d0) = 19764
[pid 19764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19764] setpgid(0, 0)               = 0
[pid 19764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19764] write(3, "1000", 4)         = 4
[pid 19764] close(3)                    = 0
[pid 19764] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19764] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19764] write(4, "78", 2)           = 2
[pid 19764] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19764] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19764] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19764] exit_group(0)               = ?
[pid 19764] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19764, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19765 attached
, child_tidptr=0x555555af35d0) = 19765
[pid 19765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19765] setpgid(0, 0)               = 0
[pid 19765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19765] write(3, "1000", 4)         = 4
[pid 19765] close(3)                    = 0
[pid 19765] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19765] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19765] write(4, "78", 2)           = 2
[pid 19765] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19765] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19765] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19765] exit_group(0)               = ?
[pid 19765] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19765, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19766 attached
, child_tidptr=0x555555af35d0) = 19766
[pid 19766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19766] setpgid(0, 0)               = 0
[pid 19766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19766] write(3, "1000", 4)         = 4
[pid 19766] close(3)                    = 0
[pid 19766] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19766] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19766] write(4, "78", 2)           = 2
[pid 19766] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19766] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19766] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19766] exit_group(0)               = ?
[pid 19766] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19766, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19767 attached
, child_tidptr=0x555555af35d0) = 19767
[pid 19767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19767] setpgid(0, 0)               = 0
[pid 19767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19767] write(3, "1000", 4)         = 4
[pid 19767] close(3)                    = 0
[pid 19767] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19767] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19767] write(4, "78", 2)           = 2
[pid 19767] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19767] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19767] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19767] exit_group(0)               = ?
[pid 19767] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19767, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19768 attached
, child_tidptr=0x555555af35d0) = 19768
[pid 19768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19768] setpgid(0, 0)               = 0
[pid 19768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19768] write(3, "1000", 4)         = 4
[pid 19768] close(3)                    = 0
[pid 19768] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19768] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19768] write(4, "78", 2)           = 2
[pid 19768] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19768] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19768] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19768] exit_group(0)               = ?
[pid 19768] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19768, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19769 attached
, child_tidptr=0x555555af35d0) = 19769
[pid 19769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19769] setpgid(0, 0)               = 0
[pid 19769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19769] write(3, "1000", 4)         = 4
[pid 19769] close(3)                    = 0
[pid 19769] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19769] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19769] write(4, "78", 2)           = 2
[pid 19769] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19769] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19769] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19769] exit_group(0)               = ?
[pid 19769] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19769, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19770 attached
, child_tidptr=0x555555af35d0) = 19770
[pid 19770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19770] setpgid(0, 0)               = 0
[pid 19770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19770] write(3, "1000", 4)         = 4
[pid 19770] close(3)                    = 0
[pid 19770] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19770] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19770] write(4, "78", 2)           = 2
[pid 19770] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19770] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19770] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19770] exit_group(0)               = ?
[pid 19770] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19770, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19771 attached
, child_tidptr=0x555555af35d0) = 19771
[pid 19771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19771] setpgid(0, 0)               = 0
[pid 19771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19771] write(3, "1000", 4)         = 4
[pid 19771] close(3)                    = 0
[pid 19771] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19771] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19771] write(4, "78", 2)           = 2
[pid 19771] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19771] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19771] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19771] exit_group(0)               = ?
[pid 19771] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19771, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19772 attached
, child_tidptr=0x555555af35d0) = 19772
[pid 19772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19772] setpgid(0, 0)               = 0
[pid 19772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19772] write(3, "1000", 4)         = 4
[pid 19772] close(3)                    = 0
[pid 19772] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19772] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19772] write(4, "78", 2)           = 2
[pid 19772] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19772] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19772] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19772] exit_group(0)               = ?
[pid 19772] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19772, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19773 attached
, child_tidptr=0x555555af35d0) = 19773
[pid 19773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19773] setpgid(0, 0)               = 0
[pid 19773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19773] write(3, "1000", 4)         = 4
[pid 19773] close(3)                    = 0
[pid 19773] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19773] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19773] write(4, "78", 2)           = 2
[pid 19773] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19773] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19773] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19773] exit_group(0)               = ?
[pid 19773] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19773, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19774 attached
, child_tidptr=0x555555af35d0) = 19774
[pid 19774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19774] setpgid(0, 0)               = 0
[pid 19774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19774] write(3, "1000", 4)         = 4
[pid 19774] close(3)                    = 0
[pid 19774] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19774] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19774] write(4, "78", 2)           = 2
[pid 19774] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 19774] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19774] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 19774] exit_group(0)               = ?
[pid 19774] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19774, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19777 attached
, child_tidptr=0x555555af35d0) = 19777
[pid 19777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19777] setpgid(0, 0)               = 0
[pid 19777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19777] write(3, "1000", 4)         = 4
[pid 19777] close(3)                    = 0
[pid 19777] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19777] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19777] write(4, "78", 2)           = 2
[pid 19777] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19777] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19777] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19777] exit_group(0)               = ?
[pid 19777] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19777, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19778 attached
, child_tidptr=0x555555af35d0) = 19778
[pid 19778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19778] setpgid(0, 0)               = 0
[pid 19778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19778] write(3, "1000", 4)         = 4
[pid 19778] close(3)                    = 0
[pid 19778] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19778] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19778] write(4, "78", 2)           = 2
[pid 19778] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19778] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19778] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19778] exit_group(0)               = ?
[pid 19778] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19778, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19779
./strace-static-x86_64: Process 19779 attached
[pid 19779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19779] setpgid(0, 0)               = 0
[pid 19779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19779] write(3, "1000", 4)         = 4
[pid 19779] close(3)                    = 0
[pid 19779] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19779] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19779] write(4, "78", 2)           = 2
[pid 19779] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19779] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19779] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19779] exit_group(0)               = ?
[pid 19779] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19779, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19780 attached
, child_tidptr=0x555555af35d0) = 19780
[pid 19780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19780] setpgid(0, 0)               = 0
[pid 19780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19780] write(3, "1000", 4)         = 4
[pid 19780] close(3)                    = 0
[pid 19780] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19780] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19780] write(4, "78", 2)           = 2
[pid 19780] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19780] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19780] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19780] exit_group(0)               = ?
[pid 19780] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19780, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19781
./strace-static-x86_64: Process 19781 attached
[pid 19781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19781] setpgid(0, 0)               = 0
[pid 19781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19781] write(3, "1000", 4)         = 4
[pid 19781] close(3)                    = 0
[pid 19781] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19781] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19781] write(4, "78", 2)           = 2
[pid 19781] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19781] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19781] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19781] exit_group(0)               = ?
[pid 19781] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19781, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19782 attached
, child_tidptr=0x555555af35d0) = 19782
[pid 19782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19782] setpgid(0, 0)               = 0
[pid 19782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19782] write(3, "1000", 4)         = 4
[pid 19782] close(3)                    = 0
[pid 19782] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19782] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19782] write(4, "78", 2)           = 2
[pid 19782] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19782] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19782] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19782] exit_group(0)               = ?
[pid 19782] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19782, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19783 attached
, child_tidptr=0x555555af35d0) = 19783
[pid 19783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19783] setpgid(0, 0)               = 0
[pid 19783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19783] write(3, "1000", 4)         = 4
[pid 19783] close(3)                    = 0
[pid 19783] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19783] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19783] write(4, "78", 2)           = 2
[pid 19783] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19783] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19783] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19783] exit_group(0)               = ?
[pid 19783] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19783, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19784 attached
, child_tidptr=0x555555af35d0) = 19784
[pid 19784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19784] setpgid(0, 0)               = 0
[pid 19784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19784] write(3, "1000", 4)         = 4
[pid 19784] close(3)                    = 0
[pid 19784] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19784] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19784] write(4, "78", 2)           = 2
[pid 19784] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19784] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19784] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19784] exit_group(0)               = ?
[pid 19784] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19784, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19785
./strace-static-x86_64: Process 19785 attached
[pid 19785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19785] setpgid(0, 0)               = 0
[pid 19785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19785] write(3, "1000", 4)         = 4
[pid 19785] close(3)                    = 0
[pid 19785] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19785] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19785] write(4, "78", 2)           = 2
[pid 19785] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19785] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19785] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19785] exit_group(0)               = ?
[pid 19785] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19785, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19786
./strace-static-x86_64: Process 19786 attached
[pid 19786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19786] setpgid(0, 0)               = 0
[pid 19786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19786] write(3, "1000", 4)         = 4
[pid 19786] close(3)                    = 0
[pid 19786] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19786] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19786] write(4, "78", 2)           = 2
[pid 19786] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19786] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19786] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19786] exit_group(0)               = ?
[pid 19786] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19786, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19787 attached
, child_tidptr=0x555555af35d0) = 19787
[pid 19787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19787] setpgid(0, 0)               = 0
[pid 19787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19787] write(3, "1000", 4)         = 4
[pid 19787] close(3)                    = 0
[pid 19787] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19787] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19787] write(4, "78", 2)           = 2
[pid 19787] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19787] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19787] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19787] exit_group(0)               = ?
[pid 19787] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19787, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19788 attached
, child_tidptr=0x555555af35d0) = 19788
[pid 19788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19788] setpgid(0, 0)               = 0
[pid 19788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19788] write(3, "1000", 4)         = 4
[pid 19788] close(3)                    = 0
[pid 19788] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19788] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19788] write(4, "78", 2)           = 2
[pid 19788] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19788] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19788] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19788] exit_group(0)               = ?
[pid 19788] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19788, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19789 attached
, child_tidptr=0x555555af35d0) = 19789
[pid 19789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19789] setpgid(0, 0)               = 0
[pid 19789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19789] write(3, "1000", 4)         = 4
[pid 19789] close(3)                    = 0
[pid 19789] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19789] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19789] write(4, "78", 2)           = 2
[pid 19789] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19789] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19789] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19789] exit_group(0)               = ?
[pid 19789] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19789, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19790
./strace-static-x86_64: Process 19790 attached
[pid 19790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19790] setpgid(0, 0)               = 0
[pid 19790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19790] write(3, "1000", 4)         = 4
[pid 19790] close(3)                    = 0
[pid 19790] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19790] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19790] write(4, "78", 2)           = 2
[pid 19790] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19790] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19790] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19790] exit_group(0)               = ?
[pid 19790] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19790, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19791
./strace-static-x86_64: Process 19791 attached
[pid 19791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19791] setpgid(0, 0)               = 0
[pid 19791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19791] write(3, "1000", 4)         = 4
[pid 19791] close(3)                    = 0
[pid 19791] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19791] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19791] write(4, "78", 2)           = 2
[pid 19791] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19791] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19791] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19791] exit_group(0)               = ?
[pid 19791] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19791, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19792 attached
, child_tidptr=0x555555af35d0) = 19792
[pid 19792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19792] setpgid(0, 0)               = 0
[pid 19792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19792] write(3, "1000", 4)         = 4
[pid 19792] close(3)                    = 0
[pid 19792] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19792] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19792] write(4, "78", 2)           = 2
[pid 19792] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19792] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19792] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19792] exit_group(0)               = ?
[pid 19792] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19792, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19793
./strace-static-x86_64: Process 19793 attached
[pid 19793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19793] setpgid(0, 0)               = 0
[pid 19793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19793] write(3, "1000", 4)         = 4
[pid 19793] close(3)                    = 0
[pid 19793] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19793] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19793] write(4, "78", 2)           = 2
[pid 19793] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19793] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19793] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19793] exit_group(0)               = ?
[pid 19793] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19793, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19794 attached
, child_tidptr=0x555555af35d0) = 19794
[pid 19794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19794] setpgid(0, 0)               = 0
[pid 19794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19794] write(3, "1000", 4)         = 4
[pid 19794] close(3)                    = 0
[pid 19794] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19794] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19794] write(4, "78", 2)           = 2
[pid 19794] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19794] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19794] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19794] exit_group(0)               = ?
[pid 19794] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19794, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19795 attached
, child_tidptr=0x555555af35d0) = 19795
[pid 19795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19795] setpgid(0, 0)               = 0
[pid 19795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19795] write(3, "1000", 4)         = 4
[pid 19795] close(3)                    = 0
[pid 19795] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19795] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19795] write(4, "78", 2)           = 2
[pid 19795] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19795] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19795] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19795] exit_group(0)               = ?
[pid 19795] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19795, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19796 attached
, child_tidptr=0x555555af35d0) = 19796
[pid 19796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19796] setpgid(0, 0)               = 0
[pid 19796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19796] write(3, "1000", 4)         = 4
[pid 19796] close(3)                    = 0
[pid 19796] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19796] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19796] write(4, "78", 2)           = 2
[pid 19796] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19796] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19796] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19796] exit_group(0)               = ?
[pid 19796] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19796, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19797 attached
, child_tidptr=0x555555af35d0) = 19797
[pid 19797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19797] setpgid(0, 0)               = 0
[pid 19797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19797] write(3, "1000", 4)         = 4
[pid 19797] close(3)                    = 0
[pid 19797] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19797] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19797] write(4, "78", 2)           = 2
[pid 19797] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19797] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19797] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19797] exit_group(0)               = ?
[pid 19797] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19797, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19798
./strace-static-x86_64: Process 19798 attached
[pid 19798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19798] setpgid(0, 0)               = 0
[pid 19798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19798] write(3, "1000", 4)         = 4
[pid 19798] close(3)                    = 0
[pid 19798] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19798] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19798] write(4, "78", 2)           = 2
[pid 19798] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19798] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19798] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19798] exit_group(0)               = ?
[pid 19798] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19798, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19799 attached
, child_tidptr=0x555555af35d0) = 19799
[pid 19799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19799] setpgid(0, 0)               = 0
[pid 19799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19799] write(3, "1000", 4)         = 4
[pid 19799] close(3)                    = 0
[pid 19799] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19799] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19799] write(4, "78", 2)           = 2
[pid 19799] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19799] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19799] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19799] exit_group(0)               = ?
[pid 19799] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19799, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19800 attached
, child_tidptr=0x555555af35d0) = 19800
[pid 19800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19800] setpgid(0, 0)               = 0
[pid 19800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19800] write(3, "1000", 4)         = 4
[pid 19800] close(3)                    = 0
[pid 19800] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19800] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19800] write(4, "78", 2)           = 2
[pid 19800] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19800] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19800] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19800] exit_group(0)               = ?
[pid 19800] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19800, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19801 attached
, child_tidptr=0x555555af35d0) = 19801
[pid 19801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19801] setpgid(0, 0)               = 0
[pid 19801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19801] write(3, "1000", 4)         = 4
[pid 19801] close(3)                    = 0
[pid 19801] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19801] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19801] write(4, "78", 2)           = 2
[pid 19801] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19801] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19801] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19801] exit_group(0)               = ?
[pid 19801] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19801, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19802 attached
, child_tidptr=0x555555af35d0) = 19802
[pid 19802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19802] setpgid(0, 0)               = 0
[pid 19802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19802] write(3, "1000", 4)         = 4
[pid 19802] close(3)                    = 0
[pid 19802] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19802] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19802] write(4, "78", 2)           = 2
[pid 19802] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19802] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19802] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19802] exit_group(0)               = ?
[pid 19802] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19802, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19803 attached
, child_tidptr=0x555555af35d0) = 19803
[pid 19803] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19803] setpgid(0, 0)               = 0
[pid 19803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19803] write(3, "1000", 4)         = 4
[pid 19803] close(3)                    = 0
[pid 19803] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19803] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19803] write(4, "78", 2)           = 2
[pid 19803] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19803] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19803] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19803] exit_group(0)               = ?
[pid 19803] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19803, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19804 attached
, child_tidptr=0x555555af35d0) = 19804
[pid 19804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19804] setpgid(0, 0)               = 0
[pid 19804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19804] write(3, "1000", 4)         = 4
[pid 19804] close(3)                    = 0
[pid 19804] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19804] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19804] write(4, "78", 2)           = 2
[pid 19804] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19804] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19804] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19804] exit_group(0)               = ?
[pid 19804] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19804, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19805 attached
, child_tidptr=0x555555af35d0) = 19805
[pid 19805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19805] setpgid(0, 0)               = 0
[pid 19805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19805] write(3, "1000", 4)         = 4
[pid 19805] close(3)                    = 0
[pid 19805] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19805] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19805] write(4, "78", 2)           = 2
[pid 19805] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19805] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19805] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19805] exit_group(0)               = ?
[pid 19805] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19805, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19806 attached
, child_tidptr=0x555555af35d0) = 19806
[pid 19806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19806] setpgid(0, 0)               = 0
[pid 19806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19806] write(3, "1000", 4)         = 4
[pid 19806] close(3)                    = 0
[pid 19806] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19806] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19806] write(4, "78", 2)           = 2
[pid 19806] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19806] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19806] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19806] exit_group(0)               = ?
[pid 19806] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19806, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19807 attached
, child_tidptr=0x555555af35d0) = 19807
[pid 19807] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19807] setpgid(0, 0)               = 0
[pid 19807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19807] write(3, "1000", 4)         = 4
[pid 19807] close(3)                    = 0
[pid 19807] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19807] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19807] write(4, "78", 2)           = 2
[pid 19807] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19807] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19807] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19807] exit_group(0)               = ?
[pid 19807] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19807, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19808 attached
, child_tidptr=0x555555af35d0) = 19808
[pid 19808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19808] setpgid(0, 0)               = 0
[pid 19808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19808] write(3, "1000", 4)         = 4
[pid 19808] close(3)                    = 0
[pid 19808] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19808] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19808] write(4, "78", 2)           = 2
[pid 19808] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19808] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19808] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19808] exit_group(0)               = ?
[pid 19808] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19808, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19809 attached
, child_tidptr=0x555555af35d0) = 19809
[pid 19809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19809] setpgid(0, 0)               = 0
[pid 19809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19809] write(3, "1000", 4)         = 4
[pid 19809] close(3)                    = 0
[pid 19809] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19809] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19809] write(4, "78", 2)           = 2
[pid 19809] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19809] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19809] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19809] exit_group(0)               = ?
[pid 19809] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19809, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19810
./strace-static-x86_64: Process 19810 attached
[pid 19810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19810] setpgid(0, 0)               = 0
[pid 19810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19810] write(3, "1000", 4)         = 4
[pid 19810] close(3)                    = 0
[pid 19810] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19810] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19810] write(4, "78", 2)           = 2
[pid 19810] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19810] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19810] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19810] exit_group(0)               = ?
[pid 19810] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19810, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19811 attached
, child_tidptr=0x555555af35d0) = 19811
[pid 19811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19811] setpgid(0, 0)               = 0
[pid 19811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19811] write(3, "1000", 4)         = 4
[pid 19811] close(3)                    = 0
[pid 19811] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19811] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19811] write(4, "78", 2)           = 2
[pid 19811] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19811] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19811] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19811] exit_group(0)               = ?
[pid 19811] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19811, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19812 attached
, child_tidptr=0x555555af35d0) = 19812
[pid 19812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19812] setpgid(0, 0)               = 0
[pid 19812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19812] write(3, "1000", 4)         = 4
[pid 19812] close(3)                    = 0
[pid 19812] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19812] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19812] write(4, "78", 2)           = 2
[pid 19812] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19812] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19812] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19812] exit_group(0)               = ?
[pid 19812] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19812, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19813 attached
, child_tidptr=0x555555af35d0) = 19813
[pid 19813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19813] setpgid(0, 0)               = 0
[pid 19813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19813] write(3, "1000", 4)         = 4
[pid 19813] close(3)                    = 0
[pid 19813] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19813] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19813] write(4, "78", 2)           = 2
[pid 19813] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19813] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19813] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19813] exit_group(0)               = ?
[pid 19813] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19813, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19814 attached
, child_tidptr=0x555555af35d0) = 19814
[pid 19814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19814] setpgid(0, 0)               = 0
[pid 19814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19814] write(3, "1000", 4)         = 4
[pid 19814] close(3)                    = 0
[pid 19814] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19814] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19814] write(4, "78", 2)           = 2
[pid 19814] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19814] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19814] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19814] exit_group(0)               = ?
[pid 19814] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19814, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19815 attached
, child_tidptr=0x555555af35d0) = 19815
[pid 19815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19815] setpgid(0, 0)               = 0
[pid 19815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19815] write(3, "1000", 4)         = 4
[pid 19815] close(3)                    = 0
[pid 19815] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19815] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19815] write(4, "78", 2)           = 2
[pid 19815] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19815] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19815] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19815] exit_group(0)               = ?
[pid 19815] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19815, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19816 attached
, child_tidptr=0x555555af35d0) = 19816
[pid 19816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19816] setpgid(0, 0)               = 0
[pid 19816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19816] write(3, "1000", 4)         = 4
[pid 19816] close(3)                    = 0
[pid 19816] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19816] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19816] write(4, "78", 2)           = 2
[pid 19816] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19816] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19816] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19816] exit_group(0)               = ?
[pid 19816] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19816, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19817
./strace-static-x86_64: Process 19817 attached
[pid 19817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19817] setpgid(0, 0)               = 0
[pid 19817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19817] write(3, "1000", 4)         = 4
[pid 19817] close(3)                    = 0
[pid 19817] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19817] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19817] write(4, "78", 2)           = 2
[pid 19817] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19817] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19817] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19817] exit_group(0)               = ?
[pid 19817] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19817, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19818 attached
, child_tidptr=0x555555af35d0) = 19818
[pid 19818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19818] setpgid(0, 0)               = 0
[pid 19818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19818] write(3, "1000", 4)         = 4
[pid 19818] close(3)                    = 0
[pid 19818] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19818] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19818] write(4, "78", 2)           = 2
[pid 19818] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19818] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19818] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19818] exit_group(0)               = ?
[pid 19818] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19818, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19819 attached
, child_tidptr=0x555555af35d0) = 19819
[pid 19819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19819] setpgid(0, 0)               = 0
[pid 19819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19819] write(3, "1000", 4)         = 4
[pid 19819] close(3)                    = 0
[pid 19819] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19819] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19819] write(4, "78", 2)           = 2
[pid 19819] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19819] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19819] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19819] exit_group(0)               = ?
[pid 19819] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19819, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19820 attached
, child_tidptr=0x555555af35d0) = 19820
[pid 19820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19820] setpgid(0, 0)               = 0
[pid 19820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19820] write(3, "1000", 4)         = 4
[pid 19820] close(3)                    = 0
[pid 19820] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19820] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19820] write(4, "78", 2)           = 2
[pid 19820] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 19820] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19820] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 19820] exit_group(0)               = ?
[pid 19820] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19820, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19821 attached
, child_tidptr=0x555555af35d0) = 19821
[pid 19821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19821] setpgid(0, 0)               = 0
[pid 19821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19821] write(3, "1000", 4)         = 4
[pid 19821] close(3)                    = 0
[pid 19821] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19821] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19821] write(4, "78", 2)           = 2
[pid 19821] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 19821] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19821] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 19821] exit_group(0)               = ?
[pid 19821] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19821, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19822 attached
, child_tidptr=0x555555af35d0) = 19822
[pid 19822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19822] setpgid(0, 0)               = 0
[pid 19822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19822] write(3, "1000", 4)         = 4
[pid 19822] close(3)                    = 0
[pid 19822] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19822] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19822] write(4, "78", 2)           = 2
[pid 19822] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19822] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19822] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19822] exit_group(0)               = ?
[pid 19822] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19822, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19823 attached
, child_tidptr=0x555555af35d0) = 19823
[pid 19823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19823] setpgid(0, 0)               = 0
[pid 19823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19823] write(3, "1000", 4)         = 4
[pid 19823] close(3)                    = 0
[pid 19823] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19823] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19823] write(4, "78", 2)           = 2
[pid 19823] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19823] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19823] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19823] exit_group(0)               = ?
[pid 19823] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19823, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19824 attached
, child_tidptr=0x555555af35d0) = 19824
[pid 19824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19824] setpgid(0, 0)               = 0
[pid 19824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19824] write(3, "1000", 4)         = 4
[pid 19824] close(3)                    = 0
[pid 19824] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19824] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19824] write(4, "78", 2)           = 2
[pid 19824] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19824] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19824] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19824] exit_group(0)               = ?
[pid 19824] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19824, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19825 attached
, child_tidptr=0x555555af35d0) = 19825
[pid 19825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19825] setpgid(0, 0)               = 0
[pid 19825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19825] write(3, "1000", 4)         = 4
[pid 19825] close(3)                    = 0
[pid 19825] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19825] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19825] write(4, "78", 2)           = 2
[pid 19825] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19825] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19825] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19825] exit_group(0)               = ?
[pid 19825] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19825, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19826 attached
, child_tidptr=0x555555af35d0) = 19826
[pid 19826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19826] setpgid(0, 0)               = 0
[pid 19826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19826] write(3, "1000", 4)         = 4
[pid 19826] close(3)                    = 0
[pid 19826] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19826] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19826] write(4, "78", 2)           = 2
[pid 19826] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19826] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19826] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19826] exit_group(0)               = ?
[pid 19826] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19826, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19827 attached
, child_tidptr=0x555555af35d0) = 19827
[pid 19827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19827] setpgid(0, 0)               = 0
[pid 19827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19827] write(3, "1000", 4)         = 4
[pid 19827] close(3)                    = 0
[pid 19827] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19827] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19827] write(4, "78", 2)           = 2
[pid 19827] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19827] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19827] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19827] exit_group(0)               = ?
[pid 19827] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19827, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19828
./strace-static-x86_64: Process 19828 attached
[pid 19828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19828] setpgid(0, 0)               = 0
[pid 19828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19828] write(3, "1000", 4)         = 4
[pid 19828] close(3)                    = 0
[pid 19828] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19828] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19828] write(4, "78", 2)           = 2
[pid 19828] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19828] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19828] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19828] exit_group(0)               = ?
[pid 19828] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19828, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19829 attached
, child_tidptr=0x555555af35d0) = 19829
[pid 19829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19829] setpgid(0, 0)               = 0
[pid 19829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19829] write(3, "1000", 4)         = 4
[pid 19829] close(3)                    = 0
[pid 19829] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19829] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19829] write(4, "78", 2)           = 2
[pid 19829] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19829] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19829] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19829] exit_group(0)               = ?
[pid 19829] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19829, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19830 attached
, child_tidptr=0x555555af35d0) = 19830
[pid 19830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19830] setpgid(0, 0)               = 0
[pid 19830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19830] write(3, "1000", 4)         = 4
[pid 19830] close(3)                    = 0
[pid 19830] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19830] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19830] write(4, "78", 2)           = 2
[pid 19830] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19830] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19830] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19830] exit_group(0)               = ?
[pid 19830] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19830, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19831
./strace-static-x86_64: Process 19831 attached
[pid 19831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19831] setpgid(0, 0)               = 0
[pid 19831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19831] write(3, "1000", 4)         = 4
[pid 19831] close(3)                    = 0
[pid 19831] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19831] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19831] write(4, "78", 2)           = 2
[pid 19831] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19831] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19831] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19831] exit_group(0)               = ?
[pid 19831] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19831, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19832 attached
, child_tidptr=0x555555af35d0) = 19832
[pid 19832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19832] setpgid(0, 0)               = 0
[pid 19832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19832] write(3, "1000", 4)         = 4
[pid 19832] close(3)                    = 0
[pid 19832] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19832] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19832] write(4, "78", 2)           = 2
[pid 19832] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19832] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19832] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19832] exit_group(0)               = ?
[pid 19832] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19832, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19833 attached
, child_tidptr=0x555555af35d0) = 19833
[pid 19833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19833] setpgid(0, 0)               = 0
[pid 19833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19833] write(3, "1000", 4)         = 4
[pid 19833] close(3)                    = 0
[pid 19833] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19833] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19833] write(4, "78", 2)           = 2
[pid 19833] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19833] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19833] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19833] exit_group(0)               = ?
[pid 19833] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19833, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19834 attached
, child_tidptr=0x555555af35d0) = 19834
[pid 19834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19834] setpgid(0, 0)               = 0
[pid 19834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19834] write(3, "1000", 4)         = 4
[pid 19834] close(3)                    = 0
[pid 19834] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19834] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19834] write(4, "78", 2)           = 2
[pid 19834] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19834] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19834] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19834] exit_group(0)               = ?
[pid 19834] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19834, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19835 attached
, child_tidptr=0x555555af35d0) = 19835
[pid 19835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19835] setpgid(0, 0)               = 0
[pid 19835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19835] write(3, "1000", 4)         = 4
[pid 19835] close(3)                    = 0
[pid 19835] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19835] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19835] write(4, "78", 2)           = 2
[pid 19835] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19835] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19835] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19835] exit_group(0)               = ?
[pid 19835] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19835, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19836 attached
, child_tidptr=0x555555af35d0) = 19836
[pid 19836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19836] setpgid(0, 0)               = 0
[pid 19836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19836] write(3, "1000", 4)         = 4
[pid 19836] close(3)                    = 0
[pid 19836] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19836] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19836] write(4, "78", 2)           = 2
[pid 19836] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19836] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19836] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19836] exit_group(0)               = ?
[pid 19836] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19836, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19837 attached
, child_tidptr=0x555555af35d0) = 19837
[pid 19837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19837] setpgid(0, 0)               = 0
[pid 19837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19837] write(3, "1000", 4)         = 4
[pid 19837] close(3)                    = 0
[pid 19837] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19837] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19837] write(4, "78", 2)           = 2
[pid 19837] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19837] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19837] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19837] exit_group(0)               = ?
[pid 19837] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19837, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19838 attached
, child_tidptr=0x555555af35d0) = 19838
[pid 19838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19838] setpgid(0, 0)               = 0
[pid 19838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19838] write(3, "1000", 4)         = 4
[pid 19838] close(3)                    = 0
[pid 19838] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19838] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19838] write(4, "78", 2)           = 2
[pid 19838] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19838] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19838] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19838] exit_group(0)               = ?
[pid 19838] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19838, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19839 attached
, child_tidptr=0x555555af35d0) = 19839
[pid 19839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19839] setpgid(0, 0)               = 0
[pid 19839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19839] write(3, "1000", 4)         = 4
[pid 19839] close(3)                    = 0
[pid 19839] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19839] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19839] write(4, "78", 2)           = 2
[pid 19839] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19839] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19839] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19839] exit_group(0)               = ?
[pid 19839] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19839, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19840 attached
, child_tidptr=0x555555af35d0) = 19840
[pid 19840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19840] setpgid(0, 0)               = 0
[pid 19840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19840] write(3, "1000", 4)         = 4
[pid 19840] close(3)                    = 0
[pid 19840] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19840] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19840] write(4, "78", 2)           = 2
[pid 19840] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19840] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19840] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19840] exit_group(0)               = ?
[pid 19840] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19840, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19841
./strace-static-x86_64: Process 19841 attached
[pid 19841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19841] setpgid(0, 0)               = 0
[pid 19841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19841] write(3, "1000", 4)         = 4
[pid 19841] close(3)                    = 0
[pid 19841] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19841] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19841] write(4, "78", 2)           = 2
[pid 19841] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19841] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19841] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19841] exit_group(0)               = ?
[pid 19841] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19841, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19842 attached
, child_tidptr=0x555555af35d0) = 19842
[pid 19842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19842] setpgid(0, 0)               = 0
[pid 19842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19842] write(3, "1000", 4)         = 4
[pid 19842] close(3)                    = 0
[pid 19842] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19842] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19842] write(4, "78", 2)           = 2
[pid 19842] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19842] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19842] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19842] exit_group(0)               = ?
[pid 19842] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19842, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19843 attached
, child_tidptr=0x555555af35d0) = 19843
[pid 19843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19843] setpgid(0, 0)               = 0
[pid 19843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19843] write(3, "1000", 4)         = 4
[pid 19843] close(3)                    = 0
[pid 19843] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19843] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19843] write(4, "78", 2)           = 2
[pid 19843] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19843] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19843] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19843] exit_group(0)               = ?
[pid 19843] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19843, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19844 attached
, child_tidptr=0x555555af35d0) = 19844
[pid 19844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19844] setpgid(0, 0)               = 0
[pid 19844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19844] write(3, "1000", 4)         = 4
[pid 19844] close(3)                    = 0
[pid 19844] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19844] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19844] write(4, "78", 2)           = 2
[pid 19844] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19844] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19844] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19844] exit_group(0)               = ?
[pid 19844] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19844, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19845 attached
, child_tidptr=0x555555af35d0) = 19845
[pid 19845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19845] setpgid(0, 0)               = 0
[pid 19845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19845] write(3, "1000", 4)         = 4
[pid 19845] close(3)                    = 0
[pid 19845] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19845] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19845] write(4, "78", 2)           = 2
[pid 19845] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19845] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19845] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19845] exit_group(0)               = ?
[pid 19845] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19845, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19846 attached
, child_tidptr=0x555555af35d0) = 19846
[pid 19846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19846] setpgid(0, 0)               = 0
[pid 19846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19846] write(3, "1000", 4)         = 4
[pid 19846] close(3)                    = 0
[pid 19846] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19846] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19846] write(4, "78", 2)           = 2
[pid 19846] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19846] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19846] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19846] exit_group(0)               = ?
[pid 19846] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19846, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19847 attached
, child_tidptr=0x555555af35d0) = 19847
[pid 19847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19847] setpgid(0, 0)               = 0
[pid 19847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19847] write(3, "1000", 4)         = 4
[pid 19847] close(3)                    = 0
[pid 19847] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19847] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19847] write(4, "78", 2)           = 2
[pid 19847] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19847] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19847] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19847] exit_group(0)               = ?
[pid 19847] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19847, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19848 attached
, child_tidptr=0x555555af35d0) = 19848
[pid 19848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19848] setpgid(0, 0)               = 0
[pid 19848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19848] write(3, "1000", 4)         = 4
[pid 19848] close(3)                    = 0
[pid 19848] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19848] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19848] write(4, "78", 2)           = 2
[pid 19848] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19848] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19848] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19848] exit_group(0)               = ?
[pid 19848] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19848, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19849 attached
, child_tidptr=0x555555af35d0) = 19849
[pid 19849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19849] setpgid(0, 0)               = 0
[pid 19849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19849] write(3, "1000", 4)         = 4
[pid 19849] close(3)                    = 0
[pid 19849] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19849] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19849] write(4, "78", 2)           = 2
[pid 19849] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19849] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19849] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19849] exit_group(0)               = ?
[pid 19849] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19849, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19850 attached
, child_tidptr=0x555555af35d0) = 19850
[pid 19850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19850] setpgid(0, 0)               = 0
[pid 19850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19850] write(3, "1000", 4)         = 4
[pid 19850] close(3)                    = 0
[pid 19850] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19850] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19850] write(4, "78", 2)           = 2
[pid 19850] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19850] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19850] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19850] exit_group(0)               = ?
[pid 19850] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19850, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19851 attached
, child_tidptr=0x555555af35d0) = 19851
[pid 19851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19851] setpgid(0, 0)               = 0
[pid 19851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19851] write(3, "1000", 4)         = 4
[pid 19851] close(3)                    = 0
[pid 19851] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19851] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19851] write(4, "78", 2)           = 2
[pid 19851] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19851] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19851] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19851] exit_group(0)               = ?
[pid 19851] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19851, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19852 attached
, child_tidptr=0x555555af35d0) = 19852
[pid 19852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19852] setpgid(0, 0)               = 0
[pid 19852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19852] write(3, "1000", 4)         = 4
[pid 19852] close(3)                    = 0
[pid 19852] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19852] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19852] write(4, "78", 2)           = 2
[pid 19852] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19852] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19852] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19852] exit_group(0)               = ?
[pid 19852] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19852, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19853 attached
, child_tidptr=0x555555af35d0) = 19853
[pid 19853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19853] setpgid(0, 0)               = 0
[pid 19853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19853] write(3, "1000", 4)         = 4
[pid 19853] close(3)                    = 0
[pid 19853] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19853] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19853] write(4, "78", 2)           = 2
[pid 19853] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19853] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19853] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19853] exit_group(0)               = ?
[pid 19853] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19853, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19854 attached
, child_tidptr=0x555555af35d0) = 19854
[pid 19854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19854] setpgid(0, 0)               = 0
[pid 19854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19854] write(3, "1000", 4)         = 4
[pid 19854] close(3)                    = 0
[pid 19854] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19854] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19854] write(4, "78", 2)           = 2
[pid 19854] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19854] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19854] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19854] exit_group(0)               = ?
[pid 19854] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19854, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19855
./strace-static-x86_64: Process 19855 attached
[pid 19855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19855] setpgid(0, 0)               = 0
[pid 19855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19855] write(3, "1000", 4)         = 4
[pid 19855] close(3)                    = 0
[pid 19855] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19855] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19855] write(4, "78", 2)           = 2
[pid 19855] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19855] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19855] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19855] exit_group(0)               = ?
[pid 19855] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19855, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19856 attached
, child_tidptr=0x555555af35d0) = 19856
[pid 19856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19856] setpgid(0, 0)               = 0
[pid 19856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19856] write(3, "1000", 4)         = 4
[pid 19856] close(3)                    = 0
[pid 19856] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19856] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19856] write(4, "78", 2)           = 2
[pid 19856] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19856] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19856] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19856] exit_group(0)               = ?
[pid 19856] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19856, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19857 attached
, child_tidptr=0x555555af35d0) = 19857
[pid 19857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19857] setpgid(0, 0)               = 0
[pid 19857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19857] write(3, "1000", 4)         = 4
[pid 19857] close(3)                    = 0
[pid 19857] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19857] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19857] write(4, "78", 2)           = 2
[pid 19857] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19857] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19857] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19857] exit_group(0)               = ?
[pid 19857] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19857, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19858 attached
, child_tidptr=0x555555af35d0) = 19858
[pid 19858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19858] setpgid(0, 0)               = 0
[pid 19858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19858] write(3, "1000", 4)         = 4
[pid 19858] close(3)                    = 0
[pid 19858] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19858] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19858] write(4, "78", 2)           = 2
[pid 19858] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19858] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19858] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19858] exit_group(0)               = ?
[pid 19858] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19858, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19859 attached
, child_tidptr=0x555555af35d0) = 19859
[pid 19859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19859] setpgid(0, 0)               = 0
[pid 19859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19859] write(3, "1000", 4)         = 4
[pid 19859] close(3)                    = 0
[pid 19859] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19859] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19859] write(4, "78", 2)           = 2
[pid 19859] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19859] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19859] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19859] exit_group(0)               = ?
[pid 19859] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19859, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19860
./strace-static-x86_64: Process 19860 attached
[pid 19860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19860] setpgid(0, 0)               = 0
[pid 19860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19860] write(3, "1000", 4)         = 4
[pid 19860] close(3)                    = 0
[pid 19860] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19860] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19860] write(4, "78", 2)           = 2
[pid 19860] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19860] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19860] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19860] exit_group(0)               = ?
[pid 19860] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19860, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19861 attached
, child_tidptr=0x555555af35d0) = 19861
[pid 19861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19861] setpgid(0, 0)               = 0
[pid 19861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19861] write(3, "1000", 4)         = 4
[pid 19861] close(3)                    = 0
[pid 19861] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19861] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19861] write(4, "78", 2)           = 2
[pid 19861] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19861] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19861] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19861] exit_group(0)               = ?
[pid 19861] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19861, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19862 attached
, child_tidptr=0x555555af35d0) = 19862
[pid 19862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19862] setpgid(0, 0)               = 0
[pid 19862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19862] write(3, "1000", 4)         = 4
[pid 19862] close(3)                    = 0
[pid 19862] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19862] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19862] write(4, "78", 2)           = 2
[pid 19862] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19862] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19862] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19862] exit_group(0)               = ?
[pid 19862] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19862, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19863 attached
, child_tidptr=0x555555af35d0) = 19863
[pid 19863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19863] setpgid(0, 0)               = 0
[pid 19863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19863] write(3, "1000", 4)         = 4
[pid 19863] close(3)                    = 0
[pid 19863] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19863] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19863] write(4, "78", 2)           = 2
[pid 19863] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19863] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19863] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19863] exit_group(0)               = ?
[pid 19863] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19863, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19864
./strace-static-x86_64: Process 19864 attached
[pid 19864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19864] setpgid(0, 0)               = 0
[pid 19864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19864] write(3, "1000", 4)         = 4
[pid 19864] close(3)                    = 0
[pid 19864] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19864] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19864] write(4, "78", 2)           = 2
[pid 19864] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19864] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19864] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19864] exit_group(0)               = ?
[pid 19864] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19864, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19865 attached
, child_tidptr=0x555555af35d0) = 19865
[pid 19865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19865] setpgid(0, 0)               = 0
[pid 19865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19865] write(3, "1000", 4)         = 4
[pid 19865] close(3)                    = 0
[pid 19865] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19865] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19865] write(4, "78", 2)           = 2
[pid 19865] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19865] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19865] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19865] exit_group(0)               = ?
[pid 19865] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19865, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19866 attached
, child_tidptr=0x555555af35d0) = 19866
[pid 19866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19866] setpgid(0, 0)               = 0
[pid 19866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19866] write(3, "1000", 4)         = 4
[pid 19866] close(3)                    = 0
[pid 19866] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19866] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19866] write(4, "78", 2)           = 2
[pid 19866] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19866] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19866] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19866] exit_group(0)               = ?
[pid 19866] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19866, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19867
./strace-static-x86_64: Process 19867 attached
[pid 19867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19867] setpgid(0, 0)               = 0
[pid 19867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19867] write(3, "1000", 4)         = 4
[pid 19867] close(3)                    = 0
[pid 19867] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19867] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19867] write(4, "78", 2)           = 2
[pid 19867] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19867] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19867] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19867] exit_group(0)               = ?
[pid 19867] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19867, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19868
./strace-static-x86_64: Process 19868 attached
[pid 19868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19868] setpgid(0, 0)               = 0
[pid 19868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19868] write(3, "1000", 4)         = 4
[pid 19868] close(3)                    = 0
[pid 19868] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19868] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19868] write(4, "78", 2)           = 2
[pid 19868] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19868] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19868] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19868] exit_group(0)               = ?
[pid 19868] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19868, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19869
./strace-static-x86_64: Process 19869 attached
[pid 19869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19869] setpgid(0, 0)               = 0
[pid 19869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19869] write(3, "1000", 4)         = 4
[pid 19869] close(3)                    = 0
[pid 19869] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19869] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19869] write(4, "78", 2)           = 2
[pid 19869] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19869] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19869] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19869] exit_group(0)               = ?
[pid 19869] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19869, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19870 attached
, child_tidptr=0x555555af35d0) = 19870
[pid 19870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19870] setpgid(0, 0)               = 0
[pid 19870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19870] write(3, "1000", 4)         = 4
[pid 19870] close(3)                    = 0
[pid 19870] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19870] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19870] write(4, "78", 2)           = 2
[pid 19870] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 19870] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19870] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 19870] exit_group(0)               = ?
[pid 19870] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19870, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19871 attached
, child_tidptr=0x555555af35d0) = 19871
[pid 19871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19871] setpgid(0, 0)               = 0
[pid 19871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19871] write(3, "1000", 4)         = 4
[pid 19871] close(3)                    = 0
[pid 19871] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19871] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19871] write(4, "78", 2)           = 2
[pid 19871] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 19871] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19871] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 19871] exit_group(0)               = ?
[pid 19871] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19871, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19872 attached
, child_tidptr=0x555555af35d0) = 19872
[pid 19872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19872] setpgid(0, 0)               = 0
[pid 19872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19872] write(3, "1000", 4)         = 4
[pid 19872] close(3)                    = 0
[pid 19872] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19872] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19872] write(4, "78", 2)           = 2
[pid 19872] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19872] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19872] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19872] exit_group(0)               = ?
[pid 19872] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19872, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19873 attached
, child_tidptr=0x555555af35d0) = 19873
[pid 19873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19873] setpgid(0, 0)               = 0
[pid 19873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19873] write(3, "1000", 4)         = 4
[pid 19873] close(3)                    = 0
[pid 19873] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19873] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19873] write(4, "78", 2)           = 2
[pid 19873] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19873] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19873] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19873] exit_group(0)               = ?
[pid 19873] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19873, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19874 attached
, child_tidptr=0x555555af35d0) = 19874
[pid 19874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19874] setpgid(0, 0)               = 0
[pid 19874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19874] write(3, "1000", 4)         = 4
[pid 19874] close(3)                    = 0
[pid 19874] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19874] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19874] write(4, "78", 2)           = 2
[pid 19874] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19874] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19874] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19874] exit_group(0)               = ?
[pid 19874] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19874, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19875 attached
, child_tidptr=0x555555af35d0) = 19875
[pid 19875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19875] setpgid(0, 0)               = 0
[pid 19875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19875] write(3, "1000", 4)         = 4
[pid 19875] close(3)                    = 0
[pid 19875] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19875] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19875] write(4, "78", 2)           = 2
[pid 19875] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19875] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19875] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19875] exit_group(0)               = ?
[pid 19875] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19875, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19876
./strace-static-x86_64: Process 19876 attached
[pid 19876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19876] setpgid(0, 0)               = 0
[pid 19876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19876] write(3, "1000", 4)         = 4
[pid 19876] close(3)                    = 0
[pid 19876] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19876] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19876] write(4, "78", 2)           = 2
[pid 19876] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19876] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19876] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19876] exit_group(0)               = ?
[pid 19876] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19876, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19877 attached
, child_tidptr=0x555555af35d0) = 19877
[pid 19877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19877] setpgid(0, 0)               = 0
[pid 19877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19877] write(3, "1000", 4)         = 4
[pid 19877] close(3)                    = 0
[pid 19877] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19877] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19877] write(4, "78", 2)           = 2
[pid 19877] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19877] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19877] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19877] exit_group(0)               = ?
[pid 19877] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19877, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19878
./strace-static-x86_64: Process 19878 attached
[pid 19878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19878] setpgid(0, 0)               = 0
[pid 19878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19878] write(3, "1000", 4)         = 4
[pid 19878] close(3)                    = 0
[pid 19878] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19878] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19878] write(4, "78", 2)           = 2
[pid 19878] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19878] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19878] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19878] exit_group(0)               = ?
[pid 19878] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19878, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19879 attached
, child_tidptr=0x555555af35d0) = 19879
[pid 19879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19879] setpgid(0, 0)               = 0
[pid 19879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19879] write(3, "1000", 4)         = 4
[pid 19879] close(3)                    = 0
[pid 19879] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19879] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19879] write(4, "78", 2)           = 2
[pid 19879] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19879] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19879] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19879] exit_group(0)               = ?
[pid 19879] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19879, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19880 attached
, child_tidptr=0x555555af35d0) = 19880
[pid 19880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19880] setpgid(0, 0)               = 0
[pid 19880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19880] write(3, "1000", 4)         = 4
[pid 19880] close(3)                    = 0
[pid 19880] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19880] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19880] write(4, "78", 2)           = 2
[pid 19880] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19880] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19880] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19880] exit_group(0)               = ?
[pid 19880] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19880, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19881 attached
, child_tidptr=0x555555af35d0) = 19881
[pid 19881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19881] setpgid(0, 0)               = 0
[pid 19881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19881] write(3, "1000", 4)         = 4
[pid 19881] close(3)                    = 0
[pid 19881] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19881] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19881] write(4, "78", 2)           = 2
[pid 19881] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19881] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19881] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19881] exit_group(0)               = ?
[pid 19881] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19881, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19882 attached
, child_tidptr=0x555555af35d0) = 19882
[pid 19882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19882] setpgid(0, 0)               = 0
[pid 19882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19882] write(3, "1000", 4)         = 4
[pid 19882] close(3)                    = 0
[pid 19882] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19882] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19882] write(4, "78", 2)           = 2
[pid 19882] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19882] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19882] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19882] exit_group(0)               = ?
[pid 19882] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19882, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19883 attached
, child_tidptr=0x555555af35d0) = 19883
[pid 19883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19883] setpgid(0, 0)               = 0
[pid 19883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19883] write(3, "1000", 4)         = 4
[pid 19883] close(3)                    = 0
[pid 19883] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19883] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19883] write(4, "78", 2)           = 2
[pid 19883] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19883] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19883] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19883] exit_group(0)               = ?
[pid 19883] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19883, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19884
./strace-static-x86_64: Process 19884 attached
[pid 19884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19884] setpgid(0, 0)               = 0
[pid 19884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19884] write(3, "1000", 4)         = 4
[pid 19884] close(3)                    = 0
[pid 19884] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19884] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19884] write(4, "78", 2)           = 2
[pid 19884] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19884] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19884] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19884] exit_group(0)               = ?
[pid 19884] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19884, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19885 attached
, child_tidptr=0x555555af35d0) = 19885
[pid 19885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19885] setpgid(0, 0)               = 0
[pid 19885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19885] write(3, "1000", 4)         = 4
[pid 19885] close(3)                    = 0
[pid 19885] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19885] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19885] write(4, "78", 2)           = 2
[pid 19885] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19885] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19885] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19885] exit_group(0)               = ?
[pid 19885] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19885, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19886
./strace-static-x86_64: Process 19886 attached
[pid 19886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19886] setpgid(0, 0)               = 0
[pid 19886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19886] write(3, "1000", 4)         = 4
[pid 19886] close(3)                    = 0
[pid 19886] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19886] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19886] write(4, "78", 2)           = 2
[pid 19886] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19886] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19886] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19886] exit_group(0)               = ?
[pid 19886] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19886, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19887 attached
, child_tidptr=0x555555af35d0) = 19887
[pid 19887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19887] setpgid(0, 0)               = 0
[pid 19887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19887] write(3, "1000", 4)         = 4
[pid 19887] close(3)                    = 0
[pid 19887] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19887] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19887] write(4, "78", 2)           = 2
[pid 19887] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19887] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19887] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19887] exit_group(0)               = ?
[pid 19887] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19887, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19888 attached
, child_tidptr=0x555555af35d0) = 19888
[pid 19888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19888] setpgid(0, 0)               = 0
[pid 19888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19888] write(3, "1000", 4)         = 4
[pid 19888] close(3)                    = 0
[pid 19888] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19888] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19888] write(4, "78", 2)           = 2
[pid 19888] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19888] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19888] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19888] exit_group(0)               = ?
[pid 19888] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19888, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19889 attached
, child_tidptr=0x555555af35d0) = 19889
[pid 19889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19889] setpgid(0, 0)               = 0
[pid 19889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19889] write(3, "1000", 4)         = 4
[pid 19889] close(3)                    = 0
[pid 19889] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19889] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19889] write(4, "78", 2)           = 2
[pid 19889] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19889] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19889] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19889] exit_group(0)               = ?
[pid 19889] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19889, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19890 attached
, child_tidptr=0x555555af35d0) = 19890
[pid 19890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19890] setpgid(0, 0)               = 0
[pid 19890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19890] write(3, "1000", 4)         = 4
[pid 19890] close(3)                    = 0
[pid 19890] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19890] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19890] write(4, "78", 2)           = 2
[pid 19890] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19890] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19890] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19890] exit_group(0)               = ?
[pid 19890] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19890, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19891 attached
, child_tidptr=0x555555af35d0) = 19891
[pid 19891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19891] setpgid(0, 0)               = 0
[pid 19891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19891] write(3, "1000", 4)         = 4
[pid 19891] close(3)                    = 0
[pid 19891] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19891] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19891] write(4, "78", 2)           = 2
[pid 19891] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19891] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19891] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19891] exit_group(0)               = ?
[pid 19891] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19891, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19892
./strace-static-x86_64: Process 19892 attached
[pid 19892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19892] setpgid(0, 0)               = 0
[pid 19892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19892] write(3, "1000", 4)         = 4
[pid 19892] close(3)                    = 0
[pid 19892] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19892] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19892] write(4, "78", 2)           = 2
[pid 19892] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19892] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19892] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19892] exit_group(0)               = ?
[pid 19892] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19892, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19893 attached
, child_tidptr=0x555555af35d0) = 19893
[pid 19893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19893] setpgid(0, 0)               = 0
[pid 19893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19893] write(3, "1000", 4)         = 4
[pid 19893] close(3)                    = 0
[pid 19893] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19893] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19893] write(4, "78", 2)           = 2
[pid 19893] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19893] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19893] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19893] exit_group(0)               = ?
[pid 19893] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19893, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19894 attached
, child_tidptr=0x555555af35d0) = 19894
[pid 19894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19894] setpgid(0, 0)               = 0
[pid 19894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19894] write(3, "1000", 4)         = 4
[pid 19894] close(3)                    = 0
[pid 19894] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19894] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19894] write(4, "78", 2)           = 2
[pid 19894] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19894] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19894] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19894] exit_group(0)               = ?
[pid 19894] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19894, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19895 attached
, child_tidptr=0x555555af35d0) = 19895
[pid 19895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19895] setpgid(0, 0)               = 0
[pid 19895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19895] write(3, "1000", 4)         = 4
[pid 19895] close(3)                    = 0
[pid 19895] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19895] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19895] write(4, "78", 2)           = 2
[pid 19895] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19895] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19895] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19895] exit_group(0)               = ?
[pid 19895] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19895, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19896 attached
, child_tidptr=0x555555af35d0) = 19896
[pid 19896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19896] setpgid(0, 0)               = 0
[pid 19896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19896] write(3, "1000", 4)         = 4
[pid 19896] close(3)                    = 0
[pid 19896] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19896] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19896] write(4, "78", 2)           = 2
[pid 19896] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19896] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19896] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19896] exit_group(0)               = ?
[pid 19896] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19896, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19897 attached
, child_tidptr=0x555555af35d0) = 19897
[pid 19897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19897] setpgid(0, 0)               = 0
[pid 19897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19897] write(3, "1000", 4)         = 4
[pid 19897] close(3)                    = 0
[pid 19897] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19897] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19897] write(4, "78", 2)           = 2
[pid 19897] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19897] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19897] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19897] exit_group(0)               = ?
[pid 19897] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19897, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19898 attached
, child_tidptr=0x555555af35d0) = 19898
[pid 19898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19898] setpgid(0, 0)               = 0
[pid 19898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19898] write(3, "1000", 4)         = 4
[pid 19898] close(3)                    = 0
[pid 19898] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19898] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19898] write(4, "78", 2)           = 2
[pid 19898] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19898] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19898] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19898] exit_group(0)               = ?
[pid 19898] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19898, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19899 attached
, child_tidptr=0x555555af35d0) = 19899
[pid 19899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19899] setpgid(0, 0)               = 0
[pid 19899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19899] write(3, "1000", 4)         = 4
[pid 19899] close(3)                    = 0
[pid 19899] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19899] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19899] write(4, "78", 2)           = 2
[pid 19899] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19899] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19899] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19899] exit_group(0)               = ?
[pid 19899] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19899, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19900 attached
, child_tidptr=0x555555af35d0) = 19900
[pid 19900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19900] setpgid(0, 0)               = 0
[pid 19900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19900] write(3, "1000", 4)         = 4
[pid 19900] close(3)                    = 0
[pid 19900] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19900] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19900] write(4, "78", 2)           = 2
[pid 19900] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19900] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19900] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19900] exit_group(0)               = ?
[pid 19900] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19900, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19901 attached
, child_tidptr=0x555555af35d0) = 19901
[pid 19901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19901] setpgid(0, 0)               = 0
[pid 19901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19901] write(3, "1000", 4)         = 4
[pid 19901] close(3)                    = 0
[pid 19901] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19901] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19901] write(4, "78", 2)           = 2
[pid 19901] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19901] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19901] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19901] exit_group(0)               = ?
[pid 19901] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19901, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19902 attached
, child_tidptr=0x555555af35d0) = 19902
[pid 19902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19902] setpgid(0, 0)               = 0
[pid 19902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19902] write(3, "1000", 4)         = 4
[pid 19902] close(3)                    = 0
[pid 19902] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19902] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19902] write(4, "78", 2)           = 2
[pid 19902] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19902] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19902] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19902] exit_group(0)               = ?
[pid 19902] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19902, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19903 attached
, child_tidptr=0x555555af35d0) = 19903
[pid 19903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19903] setpgid(0, 0)               = 0
[pid 19903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19903] write(3, "1000", 4)         = 4
[pid 19903] close(3)                    = 0
[pid 19903] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19903] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19903] write(4, "78", 2)           = 2
[pid 19903] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19903] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19903] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19903] exit_group(0)               = ?
[pid 19903] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19903, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19904
./strace-static-x86_64: Process 19904 attached
[pid 19904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19904] setpgid(0, 0)               = 0
[pid 19904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19904] write(3, "1000", 4)         = 4
[pid 19904] close(3)                    = 0
[pid 19904] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19904] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19904] write(4, "78", 2)           = 2
[pid 19904] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19904] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19904] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19904] exit_group(0)               = ?
[pid 19904] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19904, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19905 attached
, child_tidptr=0x555555af35d0) = 19905
[pid 19905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19905] setpgid(0, 0)               = 0
[pid 19905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19905] write(3, "1000", 4)         = 4
[pid 19905] close(3)                    = 0
[pid 19905] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19905] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19905] write(4, "78", 2)           = 2
[pid 19905] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 19905] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19905] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 19905] exit_group(0)               = ?
[pid 19905] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19905, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19906 attached
, child_tidptr=0x555555af35d0) = 19906
[pid 19906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19906] setpgid(0, 0)               = 0
[pid 19906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19906] write(3, "1000", 4)         = 4
[pid 19906] close(3)                    = 0
[pid 19906] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19906] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19906] write(4, "78", 2)           = 2
[pid 19906] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19906] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19906] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19906] exit_group(0)               = ?
[pid 19906] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19906, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19907 attached
, child_tidptr=0x555555af35d0) = 19907
[pid 19907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19907] setpgid(0, 0)               = 0
[pid 19907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19907] write(3, "1000", 4)         = 4
[pid 19907] close(3)                    = 0
[pid 19907] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19907] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19907] write(4, "78", 2)           = 2
[pid 19907] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19907] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19907] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19907] exit_group(0)               = ?
[pid 19907] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19907, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19908 attached
, child_tidptr=0x555555af35d0) = 19908
[pid 19908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19908] setpgid(0, 0)               = 0
[pid 19908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19908] write(3, "1000", 4)         = 4
[pid 19908] close(3)                    = 0
[pid 19908] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19908] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19908] write(4, "78", 2)           = 2
[pid 19908] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19908] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19908] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19908] exit_group(0)               = ?
[pid 19908] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19908, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19909
./strace-static-x86_64: Process 19909 attached
[pid 19909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19909] setpgid(0, 0)               = 0
[pid 19909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19909] write(3, "1000", 4)         = 4
[pid 19909] close(3)                    = 0
[pid 19909] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19909] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19909] write(4, "78", 2)           = 2
[pid 19909] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 19909] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19909] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 19909] exit_group(0)               = ?
[pid 19909] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19909, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19910 attached
, child_tidptr=0x555555af35d0) = 19910
[pid 19910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19910] setpgid(0, 0)               = 0
[pid 19910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19910] write(3, "1000", 4)         = 4
[pid 19910] close(3)                    = 0
[pid 19910] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19910] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19910] write(4, "78", 2)           = 2
[pid 19910] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19910] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19910] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19910] exit_group(0)               = ?
[pid 19910] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19910, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19911
./strace-static-x86_64: Process 19911 attached
[pid 19911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19911] setpgid(0, 0)               = 0
[pid 19911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19911] write(3, "1000", 4)         = 4
[pid 19911] close(3)                    = 0
[pid 19911] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19911] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19911] write(4, "78", 2)           = 2
[pid 19911] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19911] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19911] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19911] exit_group(0)               = ?
[pid 19911] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19911, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19912 attached
, child_tidptr=0x555555af35d0) = 19912
[pid 19912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19912] setpgid(0, 0)               = 0
[pid 19912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19912] write(3, "1000", 4)         = 4
[pid 19912] close(3)                    = 0
[pid 19912] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19912] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19912] write(4, "78", 2)           = 2
[pid 19912] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19912] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19912] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19912] exit_group(0)               = ?
[pid 19912] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19912, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19913 attached
, child_tidptr=0x555555af35d0) = 19913
[pid 19913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19913] setpgid(0, 0)               = 0
[pid 19913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19913] write(3, "1000", 4)         = 4
[pid 19913] close(3)                    = 0
[pid 19913] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19913] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19913] write(4, "78", 2)           = 2
[pid 19913] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19913] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19913] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19913] exit_group(0)               = ?
[pid 19913] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19913, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19914
./strace-static-x86_64: Process 19914 attached
[pid 19914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19914] setpgid(0, 0)               = 0
[pid 19914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19914] write(3, "1000", 4)         = 4
[pid 19914] close(3)                    = 0
[pid 19914] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19914] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19914] write(4, "78", 2)           = 2
[pid 19914] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19914] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19914] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19914] exit_group(0)               = ?
[pid 19914] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19914, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19915 attached
, child_tidptr=0x555555af35d0) = 19915
[pid 19915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19915] setpgid(0, 0)               = 0
[pid 19915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19915] write(3, "1000", 4)         = 4
[pid 19915] close(3)                    = 0
[pid 19915] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19915] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19915] write(4, "78", 2)           = 2
[pid 19915] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19915] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19915] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19915] exit_group(0)               = ?
[pid 19915] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19915, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19916 attached
, child_tidptr=0x555555af35d0) = 19916
[pid 19916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19916] setpgid(0, 0)               = 0
[pid 19916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19916] write(3, "1000", 4)         = 4
[pid 19916] close(3)                    = 0
[pid 19916] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19916] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19916] write(4, "78", 2)           = 2
[pid 19916] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19916] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19916] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19916] exit_group(0)               = ?
[pid 19916] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19916, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19917 attached
, child_tidptr=0x555555af35d0) = 19917
[pid 19917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19917] setpgid(0, 0)               = 0
[pid 19917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19917] write(3, "1000", 4)         = 4
[pid 19917] close(3)                    = 0
[pid 19917] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19917] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19917] write(4, "78", 2)           = 2
[pid 19917] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19917] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19917] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19917] exit_group(0)               = ?
[pid 19917] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19917, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19918 attached
, child_tidptr=0x555555af35d0) = 19918
[pid 19918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19918] setpgid(0, 0)               = 0
[pid 19918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19918] write(3, "1000", 4)         = 4
[pid 19918] close(3)                    = 0
[pid 19918] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19918] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19918] write(4, "78", 2)           = 2
[pid 19918] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19918] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19918] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19918] exit_group(0)               = ?
[pid 19918] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19918, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19919 attached
, child_tidptr=0x555555af35d0) = 19919
[pid 19919] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19919] setpgid(0, 0)               = 0
[pid 19919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19919] write(3, "1000", 4)         = 4
[pid 19919] close(3)                    = 0
[pid 19919] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19919] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19919] write(4, "78", 2)           = 2
[pid 19919] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19919] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19919] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19919] exit_group(0)               = ?
[pid 19919] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19919, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19920 attached
, child_tidptr=0x555555af35d0) = 19920
[pid 19920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19920] setpgid(0, 0)               = 0
[pid 19920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19920] write(3, "1000", 4)         = 4
[pid 19920] close(3)                    = 0
[pid 19920] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19920] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19920] write(4, "78", 2)           = 2
[pid 19920] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19920] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19920] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19920] exit_group(0)               = ?
[pid 19920] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19920, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19921 attached
, child_tidptr=0x555555af35d0) = 19921
[pid 19921] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19921] setpgid(0, 0)               = 0
[pid 19921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19921] write(3, "1000", 4)         = 4
[pid 19921] close(3)                    = 0
[pid 19921] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19921] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19921] write(4, "78", 2)           = 2
[pid 19921] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19921] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19921] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19921] exit_group(0)               = ?
[pid 19921] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19921, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19922 attached
, child_tidptr=0x555555af35d0) = 19922
[pid 19922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19922] setpgid(0, 0)               = 0
[pid 19922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19922] write(3, "1000", 4)         = 4
[pid 19922] close(3)                    = 0
[pid 19922] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19922] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19922] write(4, "78", 2)           = 2
[pid 19922] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19922] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19922] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19922] exit_group(0)               = ?
[pid 19922] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19922, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19923 attached
, child_tidptr=0x555555af35d0) = 19923
[pid 19923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19923] setpgid(0, 0)               = 0
[pid 19923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19923] write(3, "1000", 4)         = 4
[pid 19923] close(3)                    = 0
[pid 19923] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19923] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19923] write(4, "78", 2)           = 2
[pid 19923] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19923] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19923] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19923] exit_group(0)               = ?
[pid 19923] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19923, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19924 attached
, child_tidptr=0x555555af35d0) = 19924
[pid 19924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19924] setpgid(0, 0)               = 0
[pid 19924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19924] write(3, "1000", 4)         = 4
[pid 19924] close(3)                    = 0
[pid 19924] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19924] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19924] write(4, "78", 2)           = 2
[pid 19924] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19924] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19924] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19924] exit_group(0)               = ?
[pid 19924] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19924, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19925 attached
, child_tidptr=0x555555af35d0) = 19925
[pid 19925] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19925] setpgid(0, 0)               = 0
[pid 19925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19925] write(3, "1000", 4)         = 4
[pid 19925] close(3)                    = 0
[pid 19925] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19925] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19925] write(4, "78", 2)           = 2
[pid 19925] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19925] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19925] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19925] exit_group(0)               = ?
[pid 19925] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19925, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19926
./strace-static-x86_64: Process 19926 attached
[pid 19926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19926] setpgid(0, 0)               = 0
[pid 19926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19926] write(3, "1000", 4)         = 4
[pid 19926] close(3)                    = 0
[pid 19926] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19926] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19926] write(4, "78", 2)           = 2
[pid 19926] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19926] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19926] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19926] exit_group(0)               = ?
[pid 19926] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19926, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19927 attached
, child_tidptr=0x555555af35d0) = 19927
[pid 19927] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19927] setpgid(0, 0)               = 0
[pid 19927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19927] write(3, "1000", 4)         = 4
[pid 19927] close(3)                    = 0
[pid 19927] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19927] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19927] write(4, "78", 2)           = 2
[pid 19927] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19927] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19927] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19927] exit_group(0)               = ?
[pid 19927] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19927, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19928 attached
, child_tidptr=0x555555af35d0) = 19928
[pid 19928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19928] setpgid(0, 0)               = 0
[pid 19928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19928] write(3, "1000", 4)         = 4
[pid 19928] close(3)                    = 0
[pid 19928] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19928] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19928] write(4, "78", 2)           = 2
[pid 19928] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19928] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19928] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19928] exit_group(0)               = ?
[pid 19928] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19928, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19929
./strace-static-x86_64: Process 19929 attached
[pid 19929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19929] setpgid(0, 0)               = 0
[pid 19929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19929] write(3, "1000", 4)         = 4
[pid 19929] close(3)                    = 0
[pid 19929] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19929] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19929] write(4, "78", 2)           = 2
[pid 19929] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19929] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19929] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19929] exit_group(0)               = ?
[pid 19929] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19929, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19930 attached
, child_tidptr=0x555555af35d0) = 19930
[pid 19930] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19930] setpgid(0, 0)               = 0
[pid 19930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19930] write(3, "1000", 4)         = 4
[pid 19930] close(3)                    = 0
[pid 19930] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19930] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19930] write(4, "78", 2)           = 2
[pid 19930] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19930] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19930] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19930] exit_group(0)               = ?
[pid 19930] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19930, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19931 attached
, child_tidptr=0x555555af35d0) = 19931
[pid 19931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19931] setpgid(0, 0)               = 0
[pid 19931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19931] write(3, "1000", 4)         = 4
[pid 19931] close(3)                    = 0
[pid 19931] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19931] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19931] write(4, "78", 2)           = 2
[pid 19931] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19931] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19931] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19931] exit_group(0)               = ?
[pid 19931] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19931, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19932 attached
, child_tidptr=0x555555af35d0) = 19932
[pid 19932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19932] setpgid(0, 0)               = 0
[pid 19932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19932] write(3, "1000", 4)         = 4
[pid 19932] close(3)                    = 0
[pid 19932] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19932] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19932] write(4, "78", 2)           = 2
[pid 19932] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19932] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19932] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19932] exit_group(0)               = ?
[pid 19932] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19932, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19933 attached
, child_tidptr=0x555555af35d0) = 19933
[pid 19933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19933] setpgid(0, 0)               = 0
[pid 19933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19933] write(3, "1000", 4)         = 4
[pid 19933] close(3)                    = 0
[pid 19933] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19933] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19933] write(4, "78", 2)           = 2
[pid 19933] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19933] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19933] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19933] exit_group(0)               = ?
[pid 19933] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19933, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19934 attached
, child_tidptr=0x555555af35d0) = 19934
[pid 19934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19934] setpgid(0, 0)               = 0
[pid 19934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19934] write(3, "1000", 4)         = 4
[pid 19934] close(3)                    = 0
[pid 19934] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19934] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19934] write(4, "78", 2)           = 2
[pid 19934] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19934] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19934] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19934] exit_group(0)               = ?
[pid 19934] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19934, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19935 attached
, child_tidptr=0x555555af35d0) = 19935
[pid 19935] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19935] setpgid(0, 0)               = 0
[pid 19935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19935] write(3, "1000", 4)         = 4
[pid 19935] close(3)                    = 0
[pid 19935] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19935] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19935] write(4, "78", 2)           = 2
[pid 19935] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19935] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19935] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19935] exit_group(0)               = ?
[pid 19935] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19935, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19936 attached
, child_tidptr=0x555555af35d0) = 19936
[pid 19936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19936] setpgid(0, 0)               = 0
[pid 19936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19936] write(3, "1000", 4)         = 4
[pid 19936] close(3)                    = 0
[pid 19936] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19936] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19936] write(4, "78", 2)           = 2
[pid 19936] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19936] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19936] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19936] exit_group(0)               = ?
[pid 19936] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19936, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19937 attached
, child_tidptr=0x555555af35d0) = 19937
[pid 19937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19937] setpgid(0, 0)               = 0
[pid 19937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19937] write(3, "1000", 4)         = 4
[pid 19937] close(3)                    = 0
[pid 19937] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19937] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19937] write(4, "78", 2)           = 2
[pid 19937] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19937] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19937] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19937] exit_group(0)               = ?
[pid 19937] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19937, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19938 attached
, child_tidptr=0x555555af35d0) = 19938
[pid 19938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19938] setpgid(0, 0)               = 0
[pid 19938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19938] write(3, "1000", 4)         = 4
[pid 19938] close(3)                    = 0
[pid 19938] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19938] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19938] write(4, "78", 2)           = 2
[pid 19938] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19938] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19938] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19938] exit_group(0)               = ?
[pid 19938] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19938, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19939 attached
, child_tidptr=0x555555af35d0) = 19939
[pid 19939] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19939] setpgid(0, 0)               = 0
[pid 19939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19939] write(3, "1000", 4)         = 4
[pid 19939] close(3)                    = 0
[pid 19939] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19939] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19939] write(4, "78", 2)           = 2
[pid 19939] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19939] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19939] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19939] exit_group(0)               = ?
[pid 19939] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19939, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19940 attached
, child_tidptr=0x555555af35d0) = 19940
[pid 19940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19940] setpgid(0, 0)               = 0
[pid 19940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19940] write(3, "1000", 4)         = 4
[pid 19940] close(3)                    = 0
[pid 19940] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19940] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19940] write(4, "78", 2)           = 2
[pid 19940] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19940] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19940] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19940] exit_group(0)               = ?
[pid 19940] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19940, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19941
./strace-static-x86_64: Process 19941 attached
[pid 19941] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19941] setpgid(0, 0)               = 0
[pid 19941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19941] write(3, "1000", 4)         = 4
[pid 19941] close(3)                    = 0
[pid 19941] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19941] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19941] write(4, "78", 2)           = 2
[pid 19941] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19941] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19941] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19941] exit_group(0)               = ?
[pid 19941] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19941, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19942
./strace-static-x86_64: Process 19942 attached
[pid 19942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19942] setpgid(0, 0)               = 0
[pid 19942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19942] write(3, "1000", 4)         = 4
[pid 19942] close(3)                    = 0
[pid 19942] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19942] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19942] write(4, "78", 2)           = 2
[pid 19942] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19942] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19942] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19942] exit_group(0)               = ?
[pid 19942] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19942, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19943
./strace-static-x86_64: Process 19943 attached
[pid 19943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19943] setpgid(0, 0)               = 0
[pid 19943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19943] write(3, "1000", 4)         = 4
[pid 19943] close(3)                    = 0
[pid 19943] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19943] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19943] write(4, "78", 2)           = 2
[pid 19943] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19943] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19943] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19943] exit_group(0)               = ?
[pid 19943] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19943, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19944
./strace-static-x86_64: Process 19944 attached
[pid 19944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19944] setpgid(0, 0)               = 0
[pid 19944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19944] write(3, "1000", 4)         = 4
[pid 19944] close(3)                    = 0
[pid 19944] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19944] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19944] write(4, "78", 2)           = 2
[pid 19944] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19944] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19944] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19944] exit_group(0)               = ?
[pid 19944] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19944, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19945 attached
, child_tidptr=0x555555af35d0) = 19945
[pid 19945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19945] setpgid(0, 0)               = 0
[pid 19945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19945] write(3, "1000", 4)         = 4
[pid 19945] close(3)                    = 0
[pid 19945] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19945] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19945] write(4, "78", 2)           = 2
[pid 19945] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19945] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19945] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19945] exit_group(0)               = ?
[pid 19945] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19945, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19946 attached
, child_tidptr=0x555555af35d0) = 19946
[pid 19946] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19946] setpgid(0, 0)               = 0
[pid 19946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19946] write(3, "1000", 4)         = 4
[pid 19946] close(3)                    = 0
[pid 19946] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19946] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19946] write(4, "78", 2)           = 2
[pid 19946] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19946] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19946] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19946] exit_group(0)               = ?
[pid 19946] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19946, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19947 attached
, child_tidptr=0x555555af35d0) = 19947
[pid 19947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19947] setpgid(0, 0)               = 0
[pid 19947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19947] write(3, "1000", 4)         = 4
[pid 19947] close(3)                    = 0
[pid 19947] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19947] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19947] write(4, "78", 2)           = 2
[pid 19947] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19947] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19947] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19947] exit_group(0)               = ?
[pid 19947] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19947, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19948
./strace-static-x86_64: Process 19948 attached
[pid 19948] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19948] setpgid(0, 0)               = 0
[pid 19948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19948] write(3, "1000", 4)         = 4
[pid 19948] close(3)                    = 0
[pid 19948] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19948] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19948] write(4, "78", 2)           = 2
[pid 19948] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19948] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19948] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19948] exit_group(0)               = ?
[pid 19948] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19948, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19949 attached
, child_tidptr=0x555555af35d0) = 19949
[pid 19949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19949] setpgid(0, 0)               = 0
[pid 19949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19949] write(3, "1000", 4)         = 4
[pid 19949] close(3)                    = 0
[pid 19949] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19949] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19949] write(4, "78", 2)           = 2
[pid 19949] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19949] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19949] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19949] exit_group(0)               = ?
[pid 19949] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19949, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19950 attached
, child_tidptr=0x555555af35d0) = 19950
[pid 19950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19950] setpgid(0, 0)               = 0
[pid 19950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19950] write(3, "1000", 4)         = 4
[pid 19950] close(3)                    = 0
[pid 19950] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19950] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19950] write(4, "78", 2)           = 2
[pid 19950] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19950] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19950] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19950] exit_group(0)               = ?
[pid 19950] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19950, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19951
./strace-static-x86_64: Process 19951 attached
[pid 19951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19951] setpgid(0, 0)               = 0
[pid 19951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19951] write(3, "1000", 4)         = 4
[pid 19951] close(3)                    = 0
[pid 19951] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19951] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19951] write(4, "78", 2)           = 2
[pid 19951] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19951] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19951] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19951] exit_group(0)               = ?
[pid 19951] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19951, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19952
./strace-static-x86_64: Process 19952 attached
[pid 19952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19952] setpgid(0, 0)               = 0
[pid 19952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19952] write(3, "1000", 4)         = 4
[pid 19952] close(3)                    = 0
[pid 19952] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19952] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19952] write(4, "78", 2)           = 2
[pid 19952] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19952] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19952] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19952] exit_group(0)               = ?
[pid 19952] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19952, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19953
./strace-static-x86_64: Process 19953 attached
[pid 19953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19953] setpgid(0, 0)               = 0
[pid 19953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19953] write(3, "1000", 4)         = 4
[pid 19953] close(3)                    = 0
[pid 19953] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19953] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19953] write(4, "78", 2)           = 2
[pid 19953] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19953] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19953] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19953] exit_group(0)               = ?
[pid 19953] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19953, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19954 attached
, child_tidptr=0x555555af35d0) = 19954
[pid 19954] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19954] setpgid(0, 0)               = 0
[pid 19954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19954] write(3, "1000", 4)         = 4
[pid 19954] close(3)                    = 0
[pid 19954] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19954] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19954] write(4, "78", 2)           = 2
[pid 19954] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19954] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19954] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19954] exit_group(0)               = ?
[pid 19954] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19954, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19955
./strace-static-x86_64: Process 19955 attached
[pid 19955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19955] setpgid(0, 0)               = 0
[pid 19955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19955] write(3, "1000", 4)         = 4
[pid 19955] close(3)                    = 0
[pid 19955] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19955] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19955] write(4, "78", 2)           = 2
[pid 19955] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 19955] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19955] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 19955] exit_group(0)               = ?
[pid 19955] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19955, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19956
./strace-static-x86_64: Process 19956 attached
[pid 19956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19956] setpgid(0, 0)               = 0
[pid 19956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19956] write(3, "1000", 4)         = 4
[pid 19956] close(3)                    = 0
[pid 19956] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19956] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19956] write(4, "78", 2)           = 2
[pid 19956] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 19956] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19956] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 19956] exit_group(0)               = ?
[pid 19956] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19956, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19957 attached
, child_tidptr=0x555555af35d0) = 19957
[pid 19957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19957] setpgid(0, 0)               = 0
[pid 19957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19957] write(3, "1000", 4)         = 4
[pid 19957] close(3)                    = 0
[pid 19957] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19957] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19957] write(4, "78", 2)           = 2
[pid 19957] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19957] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19957] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19957] exit_group(0)               = ?
[pid 19957] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19957, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19958
./strace-static-x86_64: Process 19958 attached
[pid 19958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19958] setpgid(0, 0)               = 0
[pid 19958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19958] write(3, "1000", 4)         = 4
[pid 19958] close(3)                    = 0
[pid 19958] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19958] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19958] write(4, "78", 2)           = 2
[pid 19958] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19958] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19958] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19958] exit_group(0)               = ?
[pid 19958] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19958, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19959
./strace-static-x86_64: Process 19959 attached
[pid 19959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19959] setpgid(0, 0)               = 0
[pid 19959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19959] write(3, "1000", 4)         = 4
[pid 19959] close(3)                    = 0
[pid 19959] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19959] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19959] write(4, "78", 2)           = 2
[pid 19959] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19959] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19959] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19959] exit_group(0)               = ?
[pid 19959] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19959, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19960
./strace-static-x86_64: Process 19960 attached
[pid 19960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19960] setpgid(0, 0)               = 0
[pid 19960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19960] write(3, "1000", 4)         = 4
[pid 19960] close(3)                    = 0
[pid 19960] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19960] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19960] write(4, "78", 2)           = 2
[pid 19960] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19960] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19960] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19960] exit_group(0)               = ?
[pid 19960] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19960, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19961 attached
, child_tidptr=0x555555af35d0) = 19961
[pid 19961] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19961] setpgid(0, 0)               = 0
[pid 19961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19961] write(3, "1000", 4)         = 4
[pid 19961] close(3)                    = 0
[pid 19961] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19961] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19961] write(4, "78", 2)           = 2
[pid 19961] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19961] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19961] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19961] exit_group(0)               = ?
[pid 19961] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19961, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19962 attached
, child_tidptr=0x555555af35d0) = 19962
[pid 19962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19962] setpgid(0, 0)               = 0
[pid 19962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19962] write(3, "1000", 4)         = 4
[pid 19962] close(3)                    = 0
[pid 19962] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19962] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19962] write(4, "78", 2)           = 2
[pid 19962] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19962] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19962] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19962] exit_group(0)               = ?
[pid 19962] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19962, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19963 attached
, child_tidptr=0x555555af35d0) = 19963
[pid 19963] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19963] setpgid(0, 0)               = 0
[pid 19963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19963] write(3, "1000", 4)         = 4
[pid 19963] close(3)                    = 0
[pid 19963] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19963] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19963] write(4, "78", 2)           = 2
[pid 19963] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19963] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19963] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19963] exit_group(0)               = ?
[pid 19963] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19963, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19964
./strace-static-x86_64: Process 19964 attached
[pid 19964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19964] setpgid(0, 0)               = 0
[pid 19964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19964] write(3, "1000", 4)         = 4
[pid 19964] close(3)                    = 0
[pid 19964] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19964] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19964] write(4, "78", 2)           = 2
[pid 19964] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19964] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19964] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19964] exit_group(0)               = ?
[pid 19964] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19964, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19965 attached
, child_tidptr=0x555555af35d0) = 19965
[pid 19965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19965] setpgid(0, 0)               = 0
[pid 19965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19965] write(3, "1000", 4)         = 4
[pid 19965] close(3)                    = 0
[pid 19965] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19965] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19965] write(4, "78", 2)           = 2
[pid 19965] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19965] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19965] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19965] exit_group(0)               = ?
[pid 19965] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19965, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19966 attached
, child_tidptr=0x555555af35d0) = 19966
[pid 19966] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19966] setpgid(0, 0)               = 0
[pid 19966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19966] write(3, "1000", 4)         = 4
[pid 19966] close(3)                    = 0
[pid 19966] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19966] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19966] write(4, "78", 2)           = 2
[pid 19966] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19966] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19966] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19966] exit_group(0)               = ?
[pid 19966] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19966, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19967
./strace-static-x86_64: Process 19967 attached
[pid 19967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19967] setpgid(0, 0)               = 0
[pid 19967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19967] write(3, "1000", 4)         = 4
[pid 19967] close(3)                    = 0
[pid 19967] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19967] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19967] write(4, "78", 2)           = 2
[pid 19967] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19967] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19967] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19967] exit_group(0)               = ?
[pid 19967] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19967, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19968 attached
, child_tidptr=0x555555af35d0) = 19968
[pid 19968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19968] setpgid(0, 0)               = 0
[pid 19968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19968] write(3, "1000", 4)         = 4
[pid 19968] close(3)                    = 0
[pid 19968] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19968] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19968] write(4, "78", 2)           = 2
[pid 19968] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19968] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19968] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19968] exit_group(0)               = ?
[pid 19968] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19968, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19969 attached
, child_tidptr=0x555555af35d0) = 19969
[pid 19969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19969] setpgid(0, 0)               = 0
[pid 19969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19969] write(3, "1000", 4)         = 4
[pid 19969] close(3)                    = 0
[pid 19969] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19969] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19969] write(4, "78", 2)           = 2
[pid 19969] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19969] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19969] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19969] exit_group(0)               = ?
[pid 19969] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19969, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19970 attached
, child_tidptr=0x555555af35d0) = 19970
[pid 19970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19970] setpgid(0, 0)               = 0
[pid 19970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19970] write(3, "1000", 4)         = 4
[pid 19970] close(3)                    = 0
[pid 19970] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19970] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19970] write(4, "78", 2)           = 2
[pid 19970] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19970] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19970] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19970] exit_group(0)               = ?
[pid 19970] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19970, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19971 attached
, child_tidptr=0x555555af35d0) = 19971
[pid 19971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19971] setpgid(0, 0)               = 0
[pid 19971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19971] write(3, "1000", 4)         = 4
[pid 19971] close(3)                    = 0
[pid 19971] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19971] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19971] write(4, "78", 2)           = 2
[pid 19971] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19971] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19971] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19971] exit_group(0)               = ?
[pid 19971] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19971, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19972 attached
, child_tidptr=0x555555af35d0) = 19972
[pid 19972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19972] setpgid(0, 0)               = 0
[pid 19972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19972] write(3, "1000", 4)         = 4
[pid 19972] close(3)                    = 0
[pid 19972] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19972] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19972] write(4, "78", 2)           = 2
[pid 19972] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19972] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19972] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19972] exit_group(0)               = ?
[pid 19972] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19972, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19973
./strace-static-x86_64: Process 19973 attached
[pid 19973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19973] setpgid(0, 0)               = 0
[pid 19973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19973] write(3, "1000", 4)         = 4
[pid 19973] close(3)                    = 0
[pid 19973] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19973] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19973] write(4, "78", 2)           = 2
[pid 19973] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19973] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19973] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19973] exit_group(0)               = ?
[pid 19973] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19973, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19974 attached
, child_tidptr=0x555555af35d0) = 19974
[pid 19974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19974] setpgid(0, 0)               = 0
[pid 19974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19974] write(3, "1000", 4)         = 4
[pid 19974] close(3)                    = 0
[pid 19974] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19974] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19974] write(4, "78", 2)           = 2
[pid 19974] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19974] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19974] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19974] exit_group(0)               = ?
[pid 19974] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19974, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19975 attached
, child_tidptr=0x555555af35d0) = 19975
[pid 19975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19975] setpgid(0, 0)               = 0
[pid 19975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19975] write(3, "1000", 4)         = 4
[pid 19975] close(3)                    = 0
[pid 19975] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19975] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19975] write(4, "78", 2)           = 2
[pid 19975] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19975] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19975] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19975] exit_group(0)               = ?
[pid 19975] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19975, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19976 attached
, child_tidptr=0x555555af35d0) = 19976
[pid 19976] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19976] setpgid(0, 0)               = 0
[pid 19976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19976] write(3, "1000", 4)         = 4
[pid 19976] close(3)                    = 0
[pid 19976] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19976] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19976] write(4, "78", 2)           = 2
[pid 19976] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19976] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19976] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19976] exit_group(0)               = ?
[pid 19976] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19976, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19977 attached
, child_tidptr=0x555555af35d0) = 19977
[pid 19977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19977] setpgid(0, 0)               = 0
[pid 19977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19977] write(3, "1000", 4)         = 4
[pid 19977] close(3)                    = 0
[pid 19977] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19977] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19977] write(4, "78", 2)           = 2
[pid 19977] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19977] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19977] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19977] exit_group(0)               = ?
[pid 19977] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19977, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19978 attached
, child_tidptr=0x555555af35d0) = 19978
[pid 19978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19978] setpgid(0, 0)               = 0
[pid 19978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19978] write(3, "1000", 4)         = 4
[pid 19978] close(3)                    = 0
[pid 19978] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19978] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19978] write(4, "78", 2)           = 2
[pid 19978] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19978] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19978] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19978] exit_group(0)               = ?
[pid 19978] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19978, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19979 attached
, child_tidptr=0x555555af35d0) = 19979
[pid 19979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19979] setpgid(0, 0)               = 0
[pid 19979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19979] write(3, "1000", 4)         = 4
[pid 19979] close(3)                    = 0
[pid 19979] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19979] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19979] write(4, "78", 2)           = 2
[pid 19979] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19979] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19979] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19979] exit_group(0)               = ?
[pid 19979] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19979, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19980 attached
, child_tidptr=0x555555af35d0) = 19980
[pid 19980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19980] setpgid(0, 0)               = 0
[pid 19980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19980] write(3, "1000", 4)         = 4
[pid 19980] close(3)                    = 0
[pid 19980] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19980] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19980] write(4, "78", 2)           = 2
[pid 19980] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19980] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19980] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19980] exit_group(0)               = ?
[pid 19980] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19980, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19981 attached
, child_tidptr=0x555555af35d0) = 19981
[pid 19981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19981] setpgid(0, 0)               = 0
[pid 19981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19981] write(3, "1000", 4)         = 4
[pid 19981] close(3)                    = 0
[pid 19981] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19981] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19981] write(4, "78", 2)           = 2
[pid 19981] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19981] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19981] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19981] exit_group(0)               = ?
[pid 19981] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19981, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19982 attached
, child_tidptr=0x555555af35d0) = 19982
[pid 19982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19982] setpgid(0, 0)               = 0
[pid 19982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19982] write(3, "1000", 4)         = 4
[pid 19982] close(3)                    = 0
[pid 19982] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19982] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19982] write(4, "78", 2)           = 2
[pid 19982] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19982] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19982] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19982] exit_group(0)               = ?
[pid 19982] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19982, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19983
./strace-static-x86_64: Process 19983 attached
[pid 19983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19983] setpgid(0, 0)               = 0
[pid 19983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19983] write(3, "1000", 4)         = 4
[pid 19983] close(3)                    = 0
[pid 19983] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19983] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19983] write(4, "78", 2)           = 2
[pid 19983] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19983] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19983] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19983] exit_group(0)               = ?
[pid 19983] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19983, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19984
./strace-static-x86_64: Process 19984 attached
[pid 19984] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19984] setpgid(0, 0)               = 0
[pid 19984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19984] write(3, "1000", 4)         = 4
[pid 19984] close(3)                    = 0
[pid 19984] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19984] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19984] write(4, "78", 2)           = 2
[pid 19984] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19984] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19984] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19984] exit_group(0)               = ?
[pid 19984] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19984, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19985 attached
, child_tidptr=0x555555af35d0) = 19985
[pid 19985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19985] setpgid(0, 0)               = 0
[pid 19985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19985] write(3, "1000", 4)         = 4
[pid 19985] close(3)                    = 0
[pid 19985] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19985] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19985] write(4, "78", 2)           = 2
[pid 19985] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19985] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19985] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19985] exit_group(0)               = ?
[pid 19985] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19985, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19986 attached
, child_tidptr=0x555555af35d0) = 19986
[pid 19986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19986] setpgid(0, 0)               = 0
[pid 19986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19986] write(3, "1000", 4)         = 4
[pid 19986] close(3)                    = 0
[pid 19986] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19986] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19986] write(4, "78", 2)           = 2
[pid 19986] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19986] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19986] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19986] exit_group(0)               = ?
[pid 19986] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19986, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19987 attached
, child_tidptr=0x555555af35d0) = 19987
[pid 19987] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19987] setpgid(0, 0)               = 0
[pid 19987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19987] write(3, "1000", 4)         = 4
[pid 19987] close(3)                    = 0
[pid 19987] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19987] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19987] write(4, "78", 2)           = 2
[pid 19987] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19987] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19987] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19987] exit_group(0)               = ?
[pid 19987] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19987, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19988 attached
, child_tidptr=0x555555af35d0) = 19988
[pid 19988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19988] setpgid(0, 0)               = 0
[pid 19988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19988] write(3, "1000", 4)         = 4
[pid 19988] close(3)                    = 0
[pid 19988] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19988] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19988] write(4, "78", 2)           = 2
[pid 19988] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19988] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19988] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19988] exit_group(0)               = ?
[pid 19988] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19988, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19989 attached
, child_tidptr=0x555555af35d0) = 19989
[pid 19989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19989] setpgid(0, 0)               = 0
[pid 19989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19989] write(3, "1000", 4)         = 4
[pid 19989] close(3)                    = 0
[pid 19989] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19989] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19989] write(4, "78", 2)           = 2
[pid 19989] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19989] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19989] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19989] exit_group(0)               = ?
[pid 19989] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19989, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19990 attached
, child_tidptr=0x555555af35d0) = 19990
[pid 19990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19990] setpgid(0, 0)               = 0
[pid 19990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19990] write(3, "1000", 4)         = 4
[pid 19990] close(3)                    = 0
[pid 19990] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19990] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19990] write(4, "78", 2)           = 2
[pid 19990] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19990] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19990] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19990] exit_group(0)               = ?
[pid 19990] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19990, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19991 attached
, child_tidptr=0x555555af35d0) = 19991
[pid 19991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19991] setpgid(0, 0)               = 0
[pid 19991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19991] write(3, "1000", 4)         = 4
[pid 19991] close(3)                    = 0
[pid 19991] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19991] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19991] write(4, "78", 2)           = 2
[pid 19991] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19991] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19991] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19991] exit_group(0)               = ?
[pid 19991] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19991, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19992 attached
, child_tidptr=0x555555af35d0) = 19992
[pid 19992] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19992] setpgid(0, 0)               = 0
[pid 19992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19992] write(3, "1000", 4)         = 4
[pid 19992] close(3)                    = 0
[pid 19992] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19992] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19992] write(4, "78", 2)           = 2
[pid 19992] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19992] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19992] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19992] exit_group(0)               = ?
[pid 19992] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19992, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19993 attached
, child_tidptr=0x555555af35d0) = 19993
[pid 19993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19993] setpgid(0, 0)               = 0
[pid 19993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19993] write(3, "1000", 4)         = 4
[pid 19993] close(3)                    = 0
[pid 19993] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19993] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19993] write(4, "78", 2)           = 2
[pid 19993] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19993] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19993] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19993] exit_group(0)               = ?
[pid 19993] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19993, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19994 attached
, child_tidptr=0x555555af35d0) = 19994
[pid 19994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19994] setpgid(0, 0)               = 0
[pid 19994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19994] write(3, "1000", 4)         = 4
[pid 19994] close(3)                    = 0
[pid 19994] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19994] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19994] write(4, "78", 2)           = 2
[pid 19994] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19994] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19994] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19994] exit_group(0)               = ?
[pid 19994] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19994, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19995 attached
, child_tidptr=0x555555af35d0) = 19995
[pid 19995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19995] setpgid(0, 0)               = 0
[pid 19995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19995] write(3, "1000", 4)         = 4
[pid 19995] close(3)                    = 0
[pid 19995] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19995] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19995] write(4, "78", 2)           = 2
[pid 19995] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19995] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19995] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19995] exit_group(0)               = ?
[pid 19995] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19995, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 19996
./strace-static-x86_64: Process 19996 attached
[pid 19996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19996] setpgid(0, 0)               = 0
[pid 19996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19996] write(3, "1000", 4)         = 4
[pid 19996] close(3)                    = 0
[pid 19996] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19996] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19996] write(4, "78", 2)           = 2
[pid 19996] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19996] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19996] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19996] exit_group(0)               = ?
[pid 19996] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19996, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19997 attached
, child_tidptr=0x555555af35d0) = 19997
[pid 19997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19997] setpgid(0, 0)               = 0
[pid 19997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19997] write(3, "1000", 4)         = 4
[pid 19997] close(3)                    = 0
[pid 19997] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19997] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19997] write(4, "78", 2)           = 2
[pid 19997] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19997] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19997] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19997] exit_group(0)               = ?
[pid 19997] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19997, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19998 attached
, child_tidptr=0x555555af35d0) = 19998
[pid 19998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19998] setpgid(0, 0)               = 0
[pid 19998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19998] write(3, "1000", 4)         = 4
[pid 19998] close(3)                    = 0
[pid 19998] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19998] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19998] write(4, "78", 2)           = 2
[pid 19998] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19998] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19998] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19998] exit_group(0)               = ?
[pid 19998] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19998, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19999 attached
, child_tidptr=0x555555af35d0) = 19999
[pid 19999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 19999] setpgid(0, 0)               = 0
[pid 19999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 19999] write(3, "1000", 4)         = 4
[pid 19999] close(3)                    = 0
[pid 19999] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 19999] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 19999] write(4, "78", 2)           = 2
[pid 19999] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 19999] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 19999] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 19999] exit_group(0)               = ?
[pid 19999] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19999, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20000 attached
, child_tidptr=0x555555af35d0) = 20000
[pid 20000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20000] setpgid(0, 0)               = 0
[pid 20000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20000] write(3, "1000", 4)         = 4
[pid 20000] close(3)                    = 0
[pid 20000] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20000] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20000] write(4, "78", 2)           = 2
[pid 20000] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20000] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20000] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20000] exit_group(0)               = ?
[pid 20000] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20000, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20001 attached
, child_tidptr=0x555555af35d0) = 20001
[pid 20001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20001] setpgid(0, 0)               = 0
[pid 20001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20001] write(3, "1000", 4)         = 4
[pid 20001] close(3)                    = 0
[pid 20001] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20001] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20001] write(4, "78", 2)           = 2
[pid 20001] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20001] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20001] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20001] exit_group(0)               = ?
[pid 20001] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20001, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20002 attached
, child_tidptr=0x555555af35d0) = 20002
[pid 20002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20002] setpgid(0, 0)               = 0
[pid 20002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20002] write(3, "1000", 4)         = 4
[pid 20002] close(3)                    = 0
[pid 20002] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20002] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20002] write(4, "78", 2)           = 2
[pid 20002] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20002] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20002] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20002] exit_group(0)               = ?
[pid 20002] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20002, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20003 attached
, child_tidptr=0x555555af35d0) = 20003
[pid 20003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20003] setpgid(0, 0)               = 0
[pid 20003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20003] write(3, "1000", 4)         = 4
[pid 20003] close(3)                    = 0
[pid 20003] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20003] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20003] write(4, "78", 2)           = 2
[pid 20003] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20003] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20003] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20003] exit_group(0)               = ?
[pid 20003] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20003, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20004 attached
, child_tidptr=0x555555af35d0) = 20004
[pid 20004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20004] setpgid(0, 0)               = 0
[pid 20004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20004] write(3, "1000", 4)         = 4
[pid 20004] close(3)                    = 0
[pid 20004] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20004] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20004] write(4, "78", 2)           = 2
[pid 20004] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20004] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20004] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20004] exit_group(0)               = ?
[pid 20004] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20004, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20005 attached
, child_tidptr=0x555555af35d0) = 20005
[pid 20005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20005] setpgid(0, 0)               = 0
[pid 20005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20005] write(3, "1000", 4)         = 4
[pid 20005] close(3)                    = 0
[pid 20005] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20005] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20005] write(4, "78", 2)           = 2
[pid 20005] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20005] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20005] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20005] exit_group(0)               = ?
[pid 20005] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20005, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20006
./strace-static-x86_64: Process 20006 attached
[pid 20006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20006] setpgid(0, 0)               = 0
[pid 20006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20006] write(3, "1000", 4)         = 4
[pid 20006] close(3)                    = 0
[pid 20006] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20006] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20006] write(4, "78", 2)           = 2
[pid 20006] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20006] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20006] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20006] exit_group(0)               = ?
[pid 20006] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20006, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20007 attached
, child_tidptr=0x555555af35d0) = 20007
[pid 20007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20007] setpgid(0, 0)               = 0
[pid 20007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20007] write(3, "1000", 4)         = 4
[pid 20007] close(3)                    = 0
[pid 20007] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20007] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20007] write(4, "78", 2)           = 2
[pid 20007] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20007] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20007] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20007] exit_group(0)               = ?
[pid 20007] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20007, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20008 attached
, child_tidptr=0x555555af35d0) = 20008
[pid 20008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20008] setpgid(0, 0)               = 0
[pid 20008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20008] write(3, "1000", 4)         = 4
[pid 20008] close(3)                    = 0
[pid 20008] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20008] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20008] write(4, "78", 2)           = 2
[pid 20008] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20008] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20008] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20008] exit_group(0)               = ?
[pid 20008] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20008, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20009
./strace-static-x86_64: Process 20009 attached
[pid 20009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20009] setpgid(0, 0)               = 0
[pid 20009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20009] write(3, "1000", 4)         = 4
[pid 20009] close(3)                    = 0
[pid 20009] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20009] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20009] write(4, "78", 2)           = 2
[pid 20009] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20009] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20009] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20009] exit_group(0)               = ?
[pid 20009] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20009, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20010 attached
, child_tidptr=0x555555af35d0) = 20010
[pid 20010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20010] setpgid(0, 0)               = 0
[pid 20010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20010] write(3, "1000", 4)         = 4
[pid 20010] close(3)                    = 0
[pid 20010] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20010] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20010] write(4, "78", 2)           = 2
[pid 20010] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20010] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20010] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20010] exit_group(0)               = ?
[pid 20010] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20010, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20011 attached
, child_tidptr=0x555555af35d0) = 20011
[pid 20011] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20011] setpgid(0, 0)               = 0
[pid 20011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20011] write(3, "1000", 4)         = 4
[pid 20011] close(3)                    = 0
[pid 20011] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20011] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20011] write(4, "78", 2)           = 2
[pid 20011] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20011] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20011] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20011] exit_group(0)               = ?
[pid 20011] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20011, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20012 attached
, child_tidptr=0x555555af35d0) = 20012
[pid 20012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20012] setpgid(0, 0)               = 0
[pid 20012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20012] write(3, "1000", 4)         = 4
[pid 20012] close(3)                    = 0
[pid 20012] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20012] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20012] write(4, "78", 2)           = 2
[pid 20012] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20012] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20012] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20012] exit_group(0)               = ?
[pid 20012] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20012, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20013 attached
, child_tidptr=0x555555af35d0) = 20013
[pid 20013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20013] setpgid(0, 0)               = 0
[pid 20013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20013] write(3, "1000", 4)         = 4
[pid 20013] close(3)                    = 0
[pid 20013] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20013] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20013] write(4, "78", 2)           = 2
[pid 20013] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20013] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20013] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20013] exit_group(0)               = ?
[pid 20013] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20013, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20014 attached
, child_tidptr=0x555555af35d0) = 20014
[pid 20014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20014] setpgid(0, 0)               = 0
[pid 20014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20014] write(3, "1000", 4)         = 4
[pid 20014] close(3)                    = 0
[pid 20014] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20014] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20014] write(4, "78", 2)           = 2
[pid 20014] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20014] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20014] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20014] exit_group(0)               = ?
[pid 20014] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20014, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20015 attached
, child_tidptr=0x555555af35d0) = 20015
[pid 20015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20015] setpgid(0, 0)               = 0
[pid 20015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20015] write(3, "1000", 4)         = 4
[pid 20015] close(3)                    = 0
[pid 20015] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20015] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20015] write(4, "78", 2)           = 2
[pid 20015] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20015] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20015] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20015] exit_group(0)               = ?
[pid 20015] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20015, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20016 attached
, child_tidptr=0x555555af35d0) = 20016
[pid 20016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20016] setpgid(0, 0)               = 0
[pid 20016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20016] write(3, "1000", 4)         = 4
[pid 20016] close(3)                    = 0
[pid 20016] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20016] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20016] write(4, "78", 2)           = 2
[pid 20016] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20016] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20016] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20016] exit_group(0)               = ?
[pid 20016] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20016, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20017 attached
, child_tidptr=0x555555af35d0) = 20017
[pid 20017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20017] setpgid(0, 0)               = 0
[pid 20017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20017] write(3, "1000", 4)         = 4
[pid 20017] close(3)                    = 0
[pid 20017] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20017] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20017] write(4, "78", 2)           = 2
[pid 20017] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20017] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20017] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20017] exit_group(0)               = ?
[pid 20017] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20017, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20018
./strace-static-x86_64: Process 20018 attached
[pid 20018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20018] setpgid(0, 0)               = 0
[pid 20018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20018] write(3, "1000", 4)         = 4
[pid 20018] close(3)                    = 0
[pid 20018] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20018] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20018] write(4, "78", 2)           = 2
[pid 20018] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20018] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20018] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20018] exit_group(0)               = ?
[pid 20018] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20018, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20019 attached
, child_tidptr=0x555555af35d0) = 20019
[pid 20019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20019] setpgid(0, 0)               = 0
[pid 20019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20019] write(3, "1000", 4)         = 4
[pid 20019] close(3)                    = 0
[pid 20019] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20019] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20019] write(4, "78", 2)           = 2
[pid 20019] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20019] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20019] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20019] exit_group(0)               = ?
[pid 20019] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20019, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20020
./strace-static-x86_64: Process 20020 attached
[pid 20020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20020] setpgid(0, 0)               = 0
[pid 20020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20020] write(3, "1000", 4)         = 4
[pid 20020] close(3)                    = 0
[pid 20020] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20020] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20020] write(4, "78", 2)           = 2
[pid 20020] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20020] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20020] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20020] exit_group(0)               = ?
[pid 20020] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20020, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20021
./strace-static-x86_64: Process 20021 attached
[pid 20021] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20021] setpgid(0, 0)               = 0
[pid 20021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20021] write(3, "1000", 4)         = 4
[pid 20021] close(3)                    = 0
[pid 20021] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20021] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20021] write(4, "78", 2)           = 2
[pid 20021] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20021] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20021] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20021] exit_group(0)               = ?
[pid 20021] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20021, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20022 attached
, child_tidptr=0x555555af35d0) = 20022
[pid 20022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20022] setpgid(0, 0)               = 0
[pid 20022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20022] write(3, "1000", 4)         = 4
[pid 20022] close(3)                    = 0
[pid 20022] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20022] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20022] write(4, "78", 2)           = 2
[pid 20022] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20022] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20022] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20022] exit_group(0)               = ?
[pid 20022] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20022, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20023 attached
, child_tidptr=0x555555af35d0) = 20023
[pid 20023] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20023] setpgid(0, 0)               = 0
[pid 20023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20023] write(3, "1000", 4)         = 4
[pid 20023] close(3)                    = 0
[pid 20023] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20023] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20023] write(4, "78", 2)           = 2
[pid 20023] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20023] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20023] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20023] exit_group(0)               = ?
[pid 20023] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20023, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20024
./strace-static-x86_64: Process 20024 attached
[pid 20024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20024] setpgid(0, 0)               = 0
[pid 20024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20024] write(3, "1000", 4)         = 4
[pid 20024] close(3)                    = 0
[pid 20024] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20024] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20024] write(4, "78", 2)           = 2
[pid 20024] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20024] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20024] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20024] exit_group(0)               = ?
[pid 20024] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20024, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20025
./strace-static-x86_64: Process 20025 attached
[pid 20025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20025] setpgid(0, 0)               = 0
[pid 20025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20025] write(3, "1000", 4)         = 4
[pid 20025] close(3)                    = 0
[pid 20025] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20025] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20025] write(4, "78", 2)           = 2
[pid 20025] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20025] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20025] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20025] exit_group(0)               = ?
[pid 20025] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20025, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20026
./strace-static-x86_64: Process 20026 attached
[pid 20026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20026] setpgid(0, 0)               = 0
[pid 20026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20026] write(3, "1000", 4)         = 4
[pid 20026] close(3)                    = 0
[pid 20026] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20026] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20026] write(4, "78", 2)           = 2
[pid 20026] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20026] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20026] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20026] exit_group(0)               = ?
[pid 20026] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20026, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20027 attached
, child_tidptr=0x555555af35d0) = 20027
[pid 20027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20027] setpgid(0, 0)               = 0
[pid 20027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20027] write(3, "1000", 4)         = 4
[pid 20027] close(3)                    = 0
[pid 20027] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20027] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20027] write(4, "78", 2)           = 2
[pid 20027] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20027] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20027] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20027] exit_group(0)               = ?
[pid 20027] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20027, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20028 attached
, child_tidptr=0x555555af35d0) = 20028
[pid 20028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20028] setpgid(0, 0)               = 0
[pid 20028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20028] write(3, "1000", 4)         = 4
[pid 20028] close(3)                    = 0
[pid 20028] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20028] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20028] write(4, "78", 2)           = 2
[pid 20028] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20028] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20028] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20028] exit_group(0)               = ?
[pid 20028] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20028, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20029
./strace-static-x86_64: Process 20029 attached
[pid 20029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20029] setpgid(0, 0)               = 0
[pid 20029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20029] write(3, "1000", 4)         = 4
[pid 20029] close(3)                    = 0
[pid 20029] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20029] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20029] write(4, "78", 2)           = 2
[pid 20029] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20029] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20029] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20029] exit_group(0)               = ?
[pid 20029] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20029, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20030
./strace-static-x86_64: Process 20030 attached
[pid 20030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20030] setpgid(0, 0)               = 0
[pid 20030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20030] write(3, "1000", 4)         = 4
[pid 20030] close(3)                    = 0
[pid 20030] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20030] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20030] write(4, "78", 2)           = 2
[pid 20030] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20030] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20030] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20030] exit_group(0)               = ?
[pid 20030] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20030, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20031 attached
, child_tidptr=0x555555af35d0) = 20031
[pid 20031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20031] setpgid(0, 0)               = 0
[pid 20031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20031] write(3, "1000", 4)         = 4
[pid 20031] close(3)                    = 0
[pid 20031] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20031] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20031] write(4, "78", 2)           = 2
[pid 20031] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20031] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20031] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20031] exit_group(0)               = ?
[pid 20031] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20031, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20032
./strace-static-x86_64: Process 20032 attached
[pid 20032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20032] setpgid(0, 0)               = 0
[pid 20032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20032] write(3, "1000", 4)         = 4
[pid 20032] close(3)                    = 0
[pid 20032] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20032] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20032] write(4, "78", 2)           = 2
[pid 20032] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20032] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20032] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20032] exit_group(0)               = ?
[pid 20032] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20032, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20033 attached
, child_tidptr=0x555555af35d0) = 20033
[pid 20033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20033] setpgid(0, 0)               = 0
[pid 20033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20033] write(3, "1000", 4)         = 4
[pid 20033] close(3)                    = 0
[pid 20033] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20033] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20033] write(4, "78", 2)           = 2
[pid 20033] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20033] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20033] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20033] exit_group(0)               = ?
[pid 20033] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20033, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20034 attached
, child_tidptr=0x555555af35d0) = 20034
[pid 20034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20034] setpgid(0, 0)               = 0
[pid 20034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20034] write(3, "1000", 4)         = 4
[pid 20034] close(3)                    = 0
[pid 20034] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20034] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20034] write(4, "78", 2)           = 2
[pid 20034] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20034] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20034] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20034] exit_group(0)               = ?
[pid 20034] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20034, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20035 attached
, child_tidptr=0x555555af35d0) = 20035
[pid 20035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20035] setpgid(0, 0)               = 0
[pid 20035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20035] write(3, "1000", 4)         = 4
[pid 20035] close(3)                    = 0
[pid 20035] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20035] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20035] write(4, "78", 2)           = 2
[pid 20035] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20035] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20035] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20035] exit_group(0)               = ?
[pid 20035] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20035, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20036
./strace-static-x86_64: Process 20036 attached
[pid 20036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20036] setpgid(0, 0)               = 0
[pid 20036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20036] write(3, "1000", 4)         = 4
[pid 20036] close(3)                    = 0
[pid 20036] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20036] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20036] write(4, "78", 2)           = 2
[pid 20036] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20036] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20036] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20036] exit_group(0)               = ?
[pid 20036] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20036, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20037
./strace-static-x86_64: Process 20037 attached
[pid 20037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20037] setpgid(0, 0)               = 0
[pid 20037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20037] write(3, "1000", 4)         = 4
[pid 20037] close(3)                    = 0
[pid 20037] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20037] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20037] write(4, "78", 2)           = 2
[pid 20037] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20037] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20037] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20037] exit_group(0)               = ?
[pid 20037] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20037, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20038
./strace-static-x86_64: Process 20038 attached
[pid 20038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20038] setpgid(0, 0)               = 0
[pid 20038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20038] write(3, "1000", 4)         = 4
[pid 20038] close(3)                    = 0
[pid 20038] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20038] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20038] write(4, "78", 2)           = 2
[pid 20038] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20038] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20038] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20038] exit_group(0)               = ?
[pid 20038] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20038, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20039 attached
, child_tidptr=0x555555af35d0) = 20039
[pid 20039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20039] setpgid(0, 0)               = 0
[pid 20039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20039] write(3, "1000", 4)         = 4
[pid 20039] close(3)                    = 0
[pid 20039] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20039] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20039] write(4, "78", 2)           = 2
[pid 20039] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20039] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20039] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20039] exit_group(0)               = ?
[pid 20039] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20039, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20040 attached
, child_tidptr=0x555555af35d0) = 20040
[pid 20040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20040] setpgid(0, 0)               = 0
[pid 20040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20040] write(3, "1000", 4)         = 4
[pid 20040] close(3)                    = 0
[pid 20040] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20040] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20040] write(4, "78", 2)           = 2
[pid 20040] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20040] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20040] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20040] exit_group(0)               = ?
[pid 20040] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20040, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20041
./strace-static-x86_64: Process 20041 attached
[pid 20041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20041] setpgid(0, 0)               = 0
[pid 20041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20041] write(3, "1000", 4)         = 4
[pid 20041] close(3)                    = 0
[pid 20041] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20041] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20041] write(4, "78", 2)           = 2
[pid 20041] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20041] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20041] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20041] exit_group(0)               = ?
[pid 20041] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20041, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20042
./strace-static-x86_64: Process 20042 attached
[pid 20042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20042] setpgid(0, 0)               = 0
[pid 20042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20042] write(3, "1000", 4)         = 4
[pid 20042] close(3)                    = 0
[pid 20042] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20042] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20042] write(4, "78", 2)           = 2
[pid 20042] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20042] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20042] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20042] exit_group(0)               = ?
[pid 20042] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20042, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20043 attached
, child_tidptr=0x555555af35d0) = 20043
[pid 20043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20043] setpgid(0, 0)               = 0
[pid 20043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20043] write(3, "1000", 4)         = 4
[pid 20043] close(3)                    = 0
[pid 20043] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20043] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20043] write(4, "78", 2)           = 2
[pid 20043] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20043] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20043] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20043] exit_group(0)               = ?
[pid 20043] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20043, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20044
./strace-static-x86_64: Process 20044 attached
[pid 20044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20044] setpgid(0, 0)               = 0
[pid 20044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20044] write(3, "1000", 4)         = 4
[pid 20044] close(3)                    = 0
[pid 20044] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20044] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20044] write(4, "78", 2)           = 2
[pid 20044] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20044] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20044] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20044] exit_group(0)               = ?
[pid 20044] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20044, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20045 attached
, child_tidptr=0x555555af35d0) = 20045
[pid 20045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20045] setpgid(0, 0)               = 0
[pid 20045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20045] write(3, "1000", 4)         = 4
[pid 20045] close(3)                    = 0
[pid 20045] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20045] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20045] write(4, "78", 2)           = 2
[pid 20045] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20045] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20045] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20045] exit_group(0)               = ?
[pid 20045] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20045, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20046 attached
, child_tidptr=0x555555af35d0) = 20046
[pid 20046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20046] setpgid(0, 0)               = 0
[pid 20046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20046] write(3, "1000", 4)         = 4
[pid 20046] close(3)                    = 0
[pid 20046] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20046] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20046] write(4, "78", 2)           = 2
[pid 20046] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20046] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20046] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20046] exit_group(0)               = ?
[pid 20046] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20046, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20047 attached
, child_tidptr=0x555555af35d0) = 20047
[pid 20047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20047] setpgid(0, 0)               = 0
[pid 20047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20047] write(3, "1000", 4)         = 4
[pid 20047] close(3)                    = 0
[pid 20047] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20047] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20047] write(4, "78", 2)           = 2
[pid 20047] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20047] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20047] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20047] exit_group(0)               = ?
[pid 20047] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20047, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20048
./strace-static-x86_64: Process 20048 attached
[pid 20048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20048] setpgid(0, 0)               = 0
[pid 20048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20048] write(3, "1000", 4)         = 4
[pid 20048] close(3)                    = 0
[pid 20048] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20048] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20048] write(4, "78", 2)           = 2
[pid 20048] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20048] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20048] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20048] exit_group(0)               = ?
[pid 20048] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20048, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20049
./strace-static-x86_64: Process 20049 attached
[pid 20049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20049] setpgid(0, 0)               = 0
[pid 20049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20049] write(3, "1000", 4)         = 4
[pid 20049] close(3)                    = 0
[pid 20049] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20049] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20049] write(4, "78", 2)           = 2
[pid 20049] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20049] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20049] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20049] exit_group(0)               = ?
[pid 20049] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20049, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20050
./strace-static-x86_64: Process 20050 attached
[pid 20050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20050] setpgid(0, 0)               = 0
[pid 20050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20050] write(3, "1000", 4)         = 4
[pid 20050] close(3)                    = 0
[pid 20050] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20050] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20050] write(4, "78", 2)           = 2
[pid 20050] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20050] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20050] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20050] exit_group(0)               = ?
[pid 20050] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20050, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20051
./strace-static-x86_64: Process 20051 attached
[pid 20051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20051] setpgid(0, 0)               = 0
[pid 20051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20051] write(3, "1000", 4)         = 4
[pid 20051] close(3)                    = 0
[pid 20051] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20051] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20051] write(4, "78", 2)           = 2
[pid 20051] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20051] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20051] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20051] exit_group(0)               = ?
[pid 20051] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20051, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20052
./strace-static-x86_64: Process 20052 attached
[pid 20052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20052] setpgid(0, 0)               = 0
[pid 20052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20052] write(3, "1000", 4)         = 4
[pid 20052] close(3)                    = 0
[pid 20052] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20052] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20052] write(4, "78", 2)           = 2
[pid 20052] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20052] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20052] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20052] exit_group(0)               = ?
[pid 20052] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20052, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20053 attached
, child_tidptr=0x555555af35d0) = 20053
[pid 20053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20053] setpgid(0, 0)               = 0
[pid 20053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20053] write(3, "1000", 4)         = 4
[pid 20053] close(3)                    = 0
[pid 20053] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20053] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20053] write(4, "78", 2)           = 2
[pid 20053] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20053] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20053] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20053] exit_group(0)               = ?
[pid 20053] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20053, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20054
./strace-static-x86_64: Process 20054 attached
[pid 20054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20054] setpgid(0, 0)               = 0
[pid 20054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20054] write(3, "1000", 4)         = 4
[pid 20054] close(3)                    = 0
[pid 20054] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20054] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20054] write(4, "78", 2)           = 2
[pid 20054] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20054] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20054] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20054] exit_group(0)               = ?
[pid 20054] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20054, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20055
./strace-static-x86_64: Process 20055 attached
[pid 20055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20055] setpgid(0, 0)               = 0
[pid 20055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20055] write(3, "1000", 4)         = 4
[pid 20055] close(3)                    = 0
[pid 20055] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20055] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20055] write(4, "78", 2)           = 2
[pid 20055] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20055] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20055] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20055] exit_group(0)               = ?
[pid 20055] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20055, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20056 attached
, child_tidptr=0x555555af35d0) = 20056
[pid 20056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20056] setpgid(0, 0)               = 0
[pid 20056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20056] write(3, "1000", 4)         = 4
[pid 20056] close(3)                    = 0
[pid 20056] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20056] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20056] write(4, "78", 2)           = 2
[pid 20056] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20056] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20056] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20056] exit_group(0)               = ?
[pid 20056] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20056, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20057 attached
, child_tidptr=0x555555af35d0) = 20057
[pid 20057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20057] setpgid(0, 0)               = 0
[pid 20057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20057] write(3, "1000", 4)         = 4
[pid 20057] close(3)                    = 0
[pid 20057] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20057] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20057] write(4, "78", 2)           = 2
[pid 20057] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20057] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20057] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20057] exit_group(0)               = ?
[pid 20057] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20057, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20058
./strace-static-x86_64: Process 20058 attached
[pid 20058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20058] setpgid(0, 0)               = 0
[pid 20058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20058] write(3, "1000", 4)         = 4
[pid 20058] close(3)                    = 0
[pid 20058] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20058] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20058] write(4, "78", 2)           = 2
[pid 20058] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20058] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20058] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20058] exit_group(0)               = ?
[pid 20058] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20058, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20059
./strace-static-x86_64: Process 20059 attached
[pid 20059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20059] setpgid(0, 0)               = 0
[pid 20059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20059] write(3, "1000", 4)         = 4
[pid 20059] close(3)                    = 0
[pid 20059] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20059] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20059] write(4, "78", 2)           = 2
[pid 20059] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20059] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20059] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20059] exit_group(0)               = ?
[pid 20059] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20059, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20060 attached
, child_tidptr=0x555555af35d0) = 20060
[pid 20060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20060] setpgid(0, 0)               = 0
[pid 20060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20060] write(3, "1000", 4)         = 4
[pid 20060] close(3)                    = 0
[pid 20060] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20060] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20060] write(4, "78", 2)           = 2
[pid 20060] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20060] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20060] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20060] exit_group(0)               = ?
[pid 20060] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20060, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20061
./strace-static-x86_64: Process 20061 attached
[pid 20061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20061] setpgid(0, 0)               = 0
[pid 20061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20061] write(3, "1000", 4)         = 4
[pid 20061] close(3)                    = 0
[pid 20061] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20061] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20061] write(4, "78", 2)           = 2
[pid 20061] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20061] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20061] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20061] exit_group(0)               = ?
[pid 20061] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20061, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20062
./strace-static-x86_64: Process 20062 attached
[pid 20062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20062] setpgid(0, 0)               = 0
[pid 20062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20062] write(3, "1000", 4)         = 4
[pid 20062] close(3)                    = 0
[pid 20062] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20062] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20062] write(4, "78", 2)           = 2
[pid 20062] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20062] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20062] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20062] exit_group(0)               = ?
[pid 20062] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20062, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20063
./strace-static-x86_64: Process 20063 attached
[pid 20063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20063] setpgid(0, 0)               = 0
[pid 20063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20063] write(3, "1000", 4)         = 4
[pid 20063] close(3)                    = 0
[pid 20063] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20063] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20063] write(4, "78", 2)           = 2
[pid 20063] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20063] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20063] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20063] exit_group(0)               = ?
[pid 20063] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20063, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20064 attached
, child_tidptr=0x555555af35d0) = 20064
[pid 20064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20064] setpgid(0, 0)               = 0
[pid 20064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20064] write(3, "1000", 4)         = 4
[pid 20064] close(3)                    = 0
[pid 20064] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20064] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20064] write(4, "78", 2)           = 2
[pid 20064] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20064] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20064] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20064] exit_group(0)               = ?
[pid 20064] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20064, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20065 attached
, child_tidptr=0x555555af35d0) = 20065
[pid 20065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20065] setpgid(0, 0)               = 0
[pid 20065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20065] write(3, "1000", 4)         = 4
[pid 20065] close(3)                    = 0
[pid 20065] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20065] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20065] write(4, "78", 2)           = 2
[pid 20065] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20065] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20065] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20065] exit_group(0)               = ?
[pid 20065] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20065, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20066 attached
, child_tidptr=0x555555af35d0) = 20066
[pid 20066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20066] setpgid(0, 0)               = 0
[pid 20066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20066] write(3, "1000", 4)         = 4
[pid 20066] close(3)                    = 0
[pid 20066] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20066] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20066] write(4, "78", 2)           = 2
[pid 20066] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20066] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20066] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20066] exit_group(0)               = ?
[pid 20066] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20066, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20067 attached
, child_tidptr=0x555555af35d0) = 20067
[pid 20067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20067] setpgid(0, 0)               = 0
[pid 20067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20067] write(3, "1000", 4)         = 4
[pid 20067] close(3)                    = 0
[pid 20067] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20067] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20067] write(4, "78", 2)           = 2
[pid 20067] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20067] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20067] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20067] exit_group(0)               = ?
[pid 20067] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20067, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20068 attached
, child_tidptr=0x555555af35d0) = 20068
[pid 20068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20068] setpgid(0, 0)               = 0
[pid 20068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20068] write(3, "1000", 4)         = 4
[pid 20068] close(3)                    = 0
[pid 20068] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20068] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20068] write(4, "78", 2)           = 2
[pid 20068] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20068] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20068] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20068] exit_group(0)               = ?
[pid 20068] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20068, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20069 attached
, child_tidptr=0x555555af35d0) = 20069
[pid 20069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20069] setpgid(0, 0)               = 0
[pid 20069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20069] write(3, "1000", 4)         = 4
[pid 20069] close(3)                    = 0
[pid 20069] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20069] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20069] write(4, "78", 2)           = 2
[pid 20069] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20069] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20069] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20069] exit_group(0)               = ?
[pid 20069] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20069, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20070 attached
, child_tidptr=0x555555af35d0) = 20070
[pid 20070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20070] setpgid(0, 0)               = 0
[pid 20070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20070] write(3, "1000", 4)         = 4
[pid 20070] close(3)                    = 0
[pid 20070] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20070] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20070] write(4, "78", 2)           = 2
[pid 20070] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20070] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20070] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20070] exit_group(0)               = ?
[pid 20070] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20070, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20071 attached
, child_tidptr=0x555555af35d0) = 20071
[pid 20071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20071] setpgid(0, 0)               = 0
[pid 20071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20071] write(3, "1000", 4)         = 4
[pid 20071] close(3)                    = 0
[pid 20071] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20071] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20071] write(4, "78", 2)           = 2
[pid 20071] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20071] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20071] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20071] exit_group(0)               = ?
[pid 20071] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20071, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20072
./strace-static-x86_64: Process 20072 attached
[pid 20072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20072] setpgid(0, 0)               = 0
[pid 20072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20072] write(3, "1000", 4)         = 4
[pid 20072] close(3)                    = 0
[pid 20072] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20072] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20072] write(4, "78", 2)           = 2
[pid 20072] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20072] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20072] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20072] exit_group(0)               = ?
[pid 20072] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20072, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20073
./strace-static-x86_64: Process 20073 attached
[pid 20073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20073] setpgid(0, 0)               = 0
[pid 20073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20073] write(3, "1000", 4)         = 4
[pid 20073] close(3)                    = 0
[pid 20073] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20073] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20073] write(4, "78", 2)           = 2
[pid 20073] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20073] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20073] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20073] exit_group(0)               = ?
[pid 20073] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20073, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20074
./strace-static-x86_64: Process 20074 attached
[pid 20074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20074] setpgid(0, 0)               = 0
[pid 20074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20074] write(3, "1000", 4)         = 4
[pid 20074] close(3)                    = 0
[pid 20074] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20074] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20074] write(4, "78", 2)           = 2
[pid 20074] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20074] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20074] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20074] exit_group(0)               = ?
[pid 20074] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20074, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20075 attached
 <unfinished ...>
[pid 20075] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 20075
[pid 20075] <... prctl resumed>)        = 0
[pid 20075] setpgid(0, 0)               = 0
[pid 20075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20075] write(3, "1000", 4)         = 4
[pid 20075] close(3)                    = 0
[pid 20075] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20075] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20075] write(4, "78", 2)           = 2
[pid 20075] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20075] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20075] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20075] exit_group(0)               = ?
[pid 20075] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20075, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20076 attached
, child_tidptr=0x555555af35d0) = 20076
[pid 20076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20076] setpgid(0, 0)               = 0
[pid 20076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20076] write(3, "1000", 4)         = 4
[pid 20076] close(3)                    = 0
[pid 20076] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20076] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20076] write(4, "78", 2)           = 2
[pid 20076] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20076] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20076] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20076] exit_group(0)               = ?
[pid 20076] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20076, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20077 attached
, child_tidptr=0x555555af35d0) = 20077
[pid 20077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20077] setpgid(0, 0)               = 0
[pid 20077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20077] write(3, "1000", 4)         = 4
[pid 20077] close(3)                    = 0
[pid 20077] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20077] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20077] write(4, "78", 2)           = 2
[pid 20077] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20077] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20077] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20077] exit_group(0)               = ?
[pid 20077] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20077, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20078
./strace-static-x86_64: Process 20078 attached
[pid 20078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20078] setpgid(0, 0)               = 0
[pid 20078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20078] write(3, "1000", 4)         = 4
[pid 20078] close(3)                    = 0
[pid 20078] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20078] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20078] write(4, "78", 2)           = 2
[pid 20078] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20078] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20078] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20078] exit_group(0)               = ?
[pid 20078] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20078, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20079
./strace-static-x86_64: Process 20079 attached
[pid 20079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20079] setpgid(0, 0)               = 0
[pid 20079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20079] write(3, "1000", 4)         = 4
[pid 20079] close(3)                    = 0
[pid 20079] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20079] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20079] write(4, "78", 2)           = 2
[pid 20079] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20079] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20079] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20079] exit_group(0)               = ?
[pid 20079] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20079, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20080 attached
, child_tidptr=0x555555af35d0) = 20080
[pid 20080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20080] setpgid(0, 0)               = 0
[pid 20080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20080] write(3, "1000", 4)         = 4
[pid 20080] close(3)                    = 0
[pid 20080] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20080] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20080] write(4, "78", 2)           = 2
[pid 20080] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20080] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20080] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20080] exit_group(0)               = ?
[pid 20080] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20080, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20081
./strace-static-x86_64: Process 20081 attached
[pid 20081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20081] setpgid(0, 0)               = 0
[pid 20081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20081] write(3, "1000", 4)         = 4
[pid 20081] close(3)                    = 0
[pid 20081] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20081] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20081] write(4, "78", 2)           = 2
[pid 20081] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20081] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20081] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20081] exit_group(0)               = ?
[pid 20081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20081, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20082 attached
, child_tidptr=0x555555af35d0) = 20082
[pid 20082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20082] setpgid(0, 0)               = 0
[pid 20082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20082] write(3, "1000", 4)         = 4
[pid 20082] close(3)                    = 0
[pid 20082] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20082] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20082] write(4, "78", 2)           = 2
[pid 20082] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20082] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20082] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20082] exit_group(0)               = ?
[pid 20082] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20082, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20083
./strace-static-x86_64: Process 20083 attached
[pid 20083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20083] setpgid(0, 0)               = 0
[pid 20083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20083] write(3, "1000", 4)         = 4
[pid 20083] close(3)                    = 0
[pid 20083] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20083] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20083] write(4, "78", 2)           = 2
[pid 20083] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20083] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20083] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20083] exit_group(0)               = ?
[pid 20083] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20083, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20084
./strace-static-x86_64: Process 20084 attached
[pid 20084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20084] setpgid(0, 0)               = 0
[pid 20084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20084] write(3, "1000", 4)         = 4
[pid 20084] close(3)                    = 0
[pid 20084] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20084] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20084] write(4, "78", 2)           = 2
[pid 20084] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20084] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20084] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20084] exit_group(0)               = ?
[pid 20084] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20084, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20085
./strace-static-x86_64: Process 20085 attached
[pid 20085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20085] setpgid(0, 0)               = 0
[pid 20085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20085] write(3, "1000", 4)         = 4
[pid 20085] close(3)                    = 0
[pid 20085] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20085] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20085] write(4, "78", 2)           = 2
[pid 20085] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20085] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20085] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20085] exit_group(0)               = ?
[pid 20085] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20085, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20086
./strace-static-x86_64: Process 20086 attached
[pid 20086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20086] setpgid(0, 0)               = 0
[pid 20086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20086] write(3, "1000", 4)         = 4
[pid 20086] close(3)                    = 0
[pid 20086] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20086] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20086] write(4, "78", 2)           = 2
[pid 20086] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20086] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20086] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20086] exit_group(0)               = ?
[pid 20086] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20086, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20087
./strace-static-x86_64: Process 20087 attached
[pid 20087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20087] setpgid(0, 0)               = 0
[pid 20087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20087] write(3, "1000", 4)         = 4
[pid 20087] close(3)                    = 0
[pid 20087] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20087] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20087] write(4, "78", 2)           = 2
[pid 20087] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20087] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20087] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20087] exit_group(0)               = ?
[pid 20087] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20087, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20088
./strace-static-x86_64: Process 20088 attached
[pid 20088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20088] setpgid(0, 0)               = 0
[pid 20088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20088] write(3, "1000", 4)         = 4
[pid 20088] close(3)                    = 0
[pid 20088] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20088] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20088] write(4, "78", 2)           = 2
[pid 20088] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20088] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20088] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20088] exit_group(0)               = ?
[pid 20088] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20088, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20089
./strace-static-x86_64: Process 20089 attached
[pid 20089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20089] setpgid(0, 0)               = 0
[pid 20089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20089] write(3, "1000", 4)         = 4
[pid 20089] close(3)                    = 0
[pid 20089] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20089] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20089] write(4, "78", 2)           = 2
[pid 20089] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20089] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20089] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20089] exit_group(0)               = ?
[pid 20089] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20089, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20090 attached
, child_tidptr=0x555555af35d0) = 20090
[pid 20090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20090] setpgid(0, 0)               = 0
[pid 20090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20090] write(3, "1000", 4)         = 4
[pid 20090] close(3)                    = 0
[pid 20090] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20090] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20090] write(4, "78", 2)           = 2
[pid 20090] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20090] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20090] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20090] exit_group(0)               = ?
[pid 20090] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20090, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20091 attached
, child_tidptr=0x555555af35d0) = 20091
[pid 20091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20091] setpgid(0, 0)               = 0
[pid 20091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20091] write(3, "1000", 4)         = 4
[pid 20091] close(3)                    = 0
[pid 20091] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20091] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20091] write(4, "78", 2)           = 2
[pid 20091] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20091] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20091] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20091] exit_group(0)               = ?
[pid 20091] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20091, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20092 attached
, child_tidptr=0x555555af35d0) = 20092
[pid 20092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20092] setpgid(0, 0)               = 0
[pid 20092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20092] write(3, "1000", 4)         = 4
[pid 20092] close(3)                    = 0
[pid 20092] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20092] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20092] write(4, "78", 2)           = 2
[pid 20092] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20092] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20092] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20092] exit_group(0)               = ?
[pid 20092] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20092, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20093 attached
, child_tidptr=0x555555af35d0) = 20093
[pid 20093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20093] setpgid(0, 0)               = 0
[pid 20093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20093] write(3, "1000", 4)         = 4
[pid 20093] close(3)                    = 0
[pid 20093] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20093] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20093] write(4, "78", 2)           = 2
[pid 20093] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20093] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20093] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20093] exit_group(0)               = ?
[pid 20093] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20093, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20094
./strace-static-x86_64: Process 20094 attached
[pid 20094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20094] setpgid(0, 0)               = 0
[pid 20094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20094] write(3, "1000", 4)         = 4
[pid 20094] close(3)                    = 0
[pid 20094] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20094] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20094] write(4, "78", 2)           = 2
[pid 20094] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20094] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20094] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20094] exit_group(0)               = ?
[pid 20094] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20094, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20095 attached
, child_tidptr=0x555555af35d0) = 20095
[pid 20095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20095] setpgid(0, 0)               = 0
[pid 20095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20095] write(3, "1000", 4)         = 4
[pid 20095] close(3)                    = 0
[pid 20095] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20095] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20095] write(4, "78", 2)           = 2
[pid 20095] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20095] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20095] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20095] exit_group(0)               = ?
[pid 20095] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20095, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20096 attached
, child_tidptr=0x555555af35d0) = 20096
[pid 20096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20096] setpgid(0, 0)               = 0
[pid 20096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20096] write(3, "1000", 4)         = 4
[pid 20096] close(3)                    = 0
[pid 20096] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20096] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20096] write(4, "78", 2)           = 2
[pid 20096] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20096] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20096] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20096] exit_group(0)               = ?
[pid 20096] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20096, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20097 attached
, child_tidptr=0x555555af35d0) = 20097
[pid 20097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20097] setpgid(0, 0)               = 0
[pid 20097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20097] write(3, "1000", 4)         = 4
[pid 20097] close(3)                    = 0
[pid 20097] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20097] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20097] write(4, "78", 2)           = 2
[pid 20097] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20097] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20097] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20097] exit_group(0)               = ?
[pid 20097] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20097, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20098 attached
, child_tidptr=0x555555af35d0) = 20098
[pid 20098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20098] setpgid(0, 0)               = 0
[pid 20098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20098] write(3, "1000", 4)         = 4
[pid 20098] close(3)                    = 0
[pid 20098] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20098] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20098] write(4, "78", 2)           = 2
[pid 20098] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20098] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20098] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20098] exit_group(0)               = ?
[pid 20098] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20098, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20099 attached
, child_tidptr=0x555555af35d0) = 20099
[pid 20099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20099] setpgid(0, 0)               = 0
[pid 20099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20099] write(3, "1000", 4)         = 4
[pid 20099] close(3)                    = 0
[pid 20099] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20099] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20099] write(4, "78", 2)           = 2
[pid 20099] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20099] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20099] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20099] exit_group(0)               = ?
[pid 20099] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20099, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20100 attached
, child_tidptr=0x555555af35d0) = 20100
[pid 20100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20100] setpgid(0, 0)               = 0
[pid 20100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20100] write(3, "1000", 4)         = 4
[pid 20100] close(3)                    = 0
[pid 20100] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20100] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20100] write(4, "78", 2)           = 2
[pid 20100] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20100] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20100] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20100] exit_group(0)               = ?
[pid 20100] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20100, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20101
./strace-static-x86_64: Process 20101 attached
[pid 20101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20101] setpgid(0, 0)               = 0
[pid 20101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20101] write(3, "1000", 4)         = 4
[pid 20101] close(3)                    = 0
[pid 20101] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20101] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20101] write(4, "78", 2)           = 2
[pid 20101] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20101] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20101] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20101] exit_group(0)               = ?
[pid 20101] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20101, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20102
./strace-static-x86_64: Process 20102 attached
[pid 20102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20102] setpgid(0, 0)               = 0
[pid 20102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20102] write(3, "1000", 4)         = 4
[pid 20102] close(3)                    = 0
[pid 20102] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20102] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20102] write(4, "78", 2)           = 2
[pid 20102] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20102] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20102] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20102] exit_group(0)               = ?
[pid 20102] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20102, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20103
./strace-static-x86_64: Process 20103 attached
[pid 20103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20103] setpgid(0, 0)               = 0
[pid 20103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20103] write(3, "1000", 4)         = 4
[pid 20103] close(3)                    = 0
[pid 20103] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20103] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20103] write(4, "78", 2)           = 2
[pid 20103] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20103] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20103] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20103] exit_group(0)               = ?
[pid 20103] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20103, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20104
./strace-static-x86_64: Process 20104 attached
[pid 20104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20104] setpgid(0, 0)               = 0
[pid 20104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20104] write(3, "1000", 4)         = 4
[pid 20104] close(3)                    = 0
[pid 20104] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20104] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20104] write(4, "78", 2)           = 2
[pid 20104] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20104] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20104] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20104] exit_group(0)               = ?
[pid 20104] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20104, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20105 attached
, child_tidptr=0x555555af35d0) = 20105
[pid 20105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20105] setpgid(0, 0)               = 0
[pid 20105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20105] write(3, "1000", 4)         = 4
[pid 20105] close(3)                    = 0
[pid 20105] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20105] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20105] write(4, "78", 2)           = 2
[pid 20105] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20105] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20105] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20105] exit_group(0)               = ?
[pid 20105] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20105, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20106
./strace-static-x86_64: Process 20106 attached
[pid 20106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20106] setpgid(0, 0)               = 0
[pid 20106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20106] write(3, "1000", 4)         = 4
[pid 20106] close(3)                    = 0
[pid 20106] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20106] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20106] write(4, "78", 2)           = 2
[pid 20106] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20106] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20106] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20106] exit_group(0)               = ?
[pid 20106] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20106, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20107
./strace-static-x86_64: Process 20107 attached
[pid 20107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20107] setpgid(0, 0)               = 0
[pid 20107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20107] write(3, "1000", 4)         = 4
[pid 20107] close(3)                    = 0
[pid 20107] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20107] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20107] write(4, "78", 2)           = 2
[pid 20107] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20107] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20107] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20107] exit_group(0)               = ?
[pid 20107] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20107, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20108 attached
, child_tidptr=0x555555af35d0) = 20108
[pid 20108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20108] setpgid(0, 0)               = 0
[pid 20108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20108] write(3, "1000", 4)         = 4
[pid 20108] close(3)                    = 0
[pid 20108] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20108] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20108] write(4, "78", 2)           = 2
[pid 20108] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20108] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20108] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20108] exit_group(0)               = ?
[pid 20108] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20108, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20109
./strace-static-x86_64: Process 20109 attached
[pid 20109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20109] setpgid(0, 0)               = 0
[pid 20109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20109] write(3, "1000", 4)         = 4
[pid 20109] close(3)                    = 0
[pid 20109] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20109] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20109] write(4, "78", 2)           = 2
[pid 20109] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20109] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20109] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20109] exit_group(0)               = ?
[pid 20109] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20109, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20110
./strace-static-x86_64: Process 20110 attached
[pid 20110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20110] setpgid(0, 0)               = 0
[pid 20110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20110] write(3, "1000", 4)         = 4
[pid 20110] close(3)                    = 0
[pid 20110] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20110] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20110] write(4, "78", 2)           = 2
[pid 20110] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20110] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20110] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20110] exit_group(0)               = ?
[pid 20110] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20110, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20111 attached
, child_tidptr=0x555555af35d0) = 20111
[pid 20111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20111] setpgid(0, 0)               = 0
[pid 20111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20111] write(3, "1000", 4)         = 4
[pid 20111] close(3)                    = 0
[pid 20111] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20111] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20111] write(4, "78", 2)           = 2
[pid 20111] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20111] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20111] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20111] exit_group(0)               = ?
[pid 20111] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20111, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20112 attached
, child_tidptr=0x555555af35d0) = 20112
[pid 20112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20112] setpgid(0, 0)               = 0
[pid 20112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20112] write(3, "1000", 4)         = 4
[pid 20112] close(3)                    = 0
[pid 20112] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20112] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20112] write(4, "78", 2)           = 2
[pid 20112] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20112] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20112] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20112] exit_group(0)               = ?
[pid 20112] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20112, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20113 attached
, child_tidptr=0x555555af35d0) = 20113
[pid 20113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20113] setpgid(0, 0)               = 0
[pid 20113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20113] write(3, "1000", 4)         = 4
[pid 20113] close(3)                    = 0
[pid 20113] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20113] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20113] write(4, "78", 2)           = 2
[pid 20113] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20113] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20113] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20113] exit_group(0)               = ?
[pid 20113] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20113, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20114 attached
, child_tidptr=0x555555af35d0) = 20114
[pid 20114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20114] setpgid(0, 0)               = 0
[pid 20114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20114] write(3, "1000", 4)         = 4
[pid 20114] close(3)                    = 0
[pid 20114] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20114] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20114] write(4, "78", 2)           = 2
[pid 20114] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20114] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20114] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20114] exit_group(0)               = ?
[pid 20114] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20114, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20115 attached
, child_tidptr=0x555555af35d0) = 20115
[pid 20115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20115] setpgid(0, 0)               = 0
[pid 20115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20115] write(3, "1000", 4)         = 4
[pid 20115] close(3)                    = 0
[pid 20115] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20115] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20115] write(4, "78", 2)           = 2
[pid 20115] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20115] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20115] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20115] exit_group(0)               = ?
[pid 20115] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20115, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20116 attached
, child_tidptr=0x555555af35d0) = 20116
[pid 20116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20116] setpgid(0, 0)               = 0
[pid 20116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20116] write(3, "1000", 4)         = 4
[pid 20116] close(3)                    = 0
[pid 20116] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20116] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20116] write(4, "78", 2)           = 2
[pid 20116] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20116] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20116] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20116] exit_group(0)               = ?
[pid 20116] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20116, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20117 attached
, child_tidptr=0x555555af35d0) = 20117
[pid 20117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20117] setpgid(0, 0)               = 0
[pid 20117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20117] write(3, "1000", 4)         = 4
[pid 20117] close(3)                    = 0
[pid 20117] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20117] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20117] write(4, "78", 2)           = 2
[pid 20117] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20117] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20117] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20117] exit_group(0)               = ?
[pid 20117] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20117, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20118 attached
, child_tidptr=0x555555af35d0) = 20118
[pid 20118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20118] setpgid(0, 0)               = 0
[pid 20118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20118] write(3, "1000", 4)         = 4
[pid 20118] close(3)                    = 0
[pid 20118] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20118] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20118] write(4, "78", 2)           = 2
[pid 20118] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20118] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20118] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20118] exit_group(0)               = ?
[pid 20118] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20118, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20119 attached
, child_tidptr=0x555555af35d0) = 20119
[pid 20119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20119] setpgid(0, 0)               = 0
[pid 20119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20119] write(3, "1000", 4)         = 4
[pid 20119] close(3)                    = 0
[pid 20119] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20119] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20119] write(4, "78", 2)           = 2
[pid 20119] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20119] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20119] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20119] exit_group(0)               = ?
[pid 20119] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20119, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20120 attached
, child_tidptr=0x555555af35d0) = 20120
[pid 20120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20120] setpgid(0, 0)               = 0
[pid 20120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20120] write(3, "1000", 4)         = 4
[pid 20120] close(3)                    = 0
[pid 20120] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20120] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20120] write(4, "78", 2)           = 2
[pid 20120] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20120] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20120] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20120] exit_group(0)               = ?
[pid 20120] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20120, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20121 attached
, child_tidptr=0x555555af35d0) = 20121
[pid 20121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20121] setpgid(0, 0)               = 0
[pid 20121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20121] write(3, "1000", 4)         = 4
[pid 20121] close(3)                    = 0
[pid 20121] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20121] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20121] write(4, "78", 2)           = 2
[pid 20121] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20121] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20121] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20121] exit_group(0)               = ?
[pid 20121] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20121, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20122
./strace-static-x86_64: Process 20122 attached
[pid 20122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20122] setpgid(0, 0)               = 0
[pid 20122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20122] write(3, "1000", 4)         = 4
[pid 20122] close(3)                    = 0
[pid 20122] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20122] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20122] write(4, "78", 2)           = 2
[pid 20122] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20122] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20122] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20122] exit_group(0)               = ?
[pid 20122] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20122, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20123
./strace-static-x86_64: Process 20123 attached
[pid 20123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20123] setpgid(0, 0)               = 0
[pid 20123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20123] write(3, "1000", 4)         = 4
[pid 20123] close(3)                    = 0
[pid 20123] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20123] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20123] write(4, "78", 2)           = 2
[pid 20123] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20123] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20123] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20123] exit_group(0)               = ?
[pid 20123] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20123, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20124 attached
, child_tidptr=0x555555af35d0) = 20124
[pid 20124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20124] setpgid(0, 0)               = 0
[pid 20124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20124] write(3, "1000", 4)         = 4
[pid 20124] close(3)                    = 0
[pid 20124] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20124] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20124] write(4, "78", 2)           = 2
[pid 20124] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20124] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20124] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20124] exit_group(0)               = ?
[pid 20124] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20124, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20125 attached
, child_tidptr=0x555555af35d0) = 20125
[pid 20125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20125] setpgid(0, 0)               = 0
[pid 20125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20125] write(3, "1000", 4)         = 4
[pid 20125] close(3)                    = 0
[pid 20125] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20125] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20125] write(4, "78", 2)           = 2
[pid 20125] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20125] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20125] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20125] exit_group(0)               = ?
[pid 20125] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20125, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20126 attached
, child_tidptr=0x555555af35d0) = 20126
[pid 20126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20126] setpgid(0, 0)               = 0
[pid 20126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20126] write(3, "1000", 4)         = 4
[pid 20126] close(3)                    = 0
[pid 20126] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20126] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20126] write(4, "78", 2)           = 2
[pid 20126] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20126] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20126] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20126] exit_group(0)               = ?
[pid 20126] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20126, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20127
./strace-static-x86_64: Process 20127 attached
[pid 20127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20127] setpgid(0, 0)               = 0
[pid 20127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20127] write(3, "1000", 4)         = 4
[pid 20127] close(3)                    = 0
[pid 20127] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20127] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20127] write(4, "78", 2)           = 2
[pid 20127] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20127] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20127] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20127] exit_group(0)               = ?
[pid 20127] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20127, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20128 attached
, child_tidptr=0x555555af35d0) = 20128
[pid 20128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20128] setpgid(0, 0)               = 0
[pid 20128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20128] write(3, "1000", 4)         = 4
[pid 20128] close(3)                    = 0
[pid 20128] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20128] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20128] write(4, "78", 2)           = 2
[pid 20128] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20128] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20128] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20128] exit_group(0)               = ?
[pid 20128] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20128, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20129 attached
, child_tidptr=0x555555af35d0) = 20129
[pid 20129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20129] setpgid(0, 0)               = 0
[pid 20129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20129] write(3, "1000", 4)         = 4
[pid 20129] close(3)                    = 0
[pid 20129] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20129] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20129] write(4, "78", 2)           = 2
[pid 20129] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20129] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20129] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20129] exit_group(0)               = ?
[pid 20129] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20129, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20130 attached
, child_tidptr=0x555555af35d0) = 20130
[pid 20130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20130] setpgid(0, 0)               = 0
[pid 20130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20130] write(3, "1000", 4)         = 4
[pid 20130] close(3)                    = 0
[pid 20130] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20130] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20130] write(4, "78", 2)           = 2
[pid 20130] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20130] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20130] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20130] exit_group(0)               = ?
[pid 20130] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20130, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20131
./strace-static-x86_64: Process 20131 attached
[pid 20131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20131] setpgid(0, 0)               = 0
[pid 20131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20131] write(3, "1000", 4)         = 4
[pid 20131] close(3)                    = 0
[pid 20131] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20131] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20131] write(4, "78", 2)           = 2
[pid 20131] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20131] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20131] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20131] exit_group(0)               = ?
[pid 20131] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20131, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20132 attached
, child_tidptr=0x555555af35d0) = 20132
[pid 20132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20132] setpgid(0, 0)               = 0
[pid 20132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20132] write(3, "1000", 4)         = 4
[pid 20132] close(3)                    = 0
[pid 20132] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20132] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20132] write(4, "78", 2)           = 2
[pid 20132] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20132] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20132] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20132] exit_group(0)               = ?
[pid 20132] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20132, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20133 attached
, child_tidptr=0x555555af35d0) = 20133
[pid 20133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20133] setpgid(0, 0)               = 0
[pid 20133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20133] write(3, "1000", 4)         = 4
[pid 20133] close(3)                    = 0
[pid 20133] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20133] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20133] write(4, "78", 2)           = 2
[pid 20133] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20133] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20133] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20133] exit_group(0)               = ?
[pid 20133] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20133, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20134 attached
, child_tidptr=0x555555af35d0) = 20134
[pid 20134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20134] setpgid(0, 0)               = 0
[pid 20134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20134] write(3, "1000", 4)         = 4
[pid 20134] close(3)                    = 0
[pid 20134] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20134] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20134] write(4, "78", 2)           = 2
[pid 20134] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20134] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20134] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20134] exit_group(0)               = ?
[pid 20134] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20134, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20135 attached
, child_tidptr=0x555555af35d0) = 20135
[pid 20135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20135] setpgid(0, 0)               = 0
[pid 20135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20135] write(3, "1000", 4)         = 4
[pid 20135] close(3)                    = 0
[pid 20135] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20135] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20135] write(4, "78", 2)           = 2
[pid 20135] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20135] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20135] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20135] exit_group(0)               = ?
[pid 20135] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20135, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20136
./strace-static-x86_64: Process 20136 attached
[pid 20136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20136] setpgid(0, 0)               = 0
[pid 20136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20136] write(3, "1000", 4)         = 4
[pid 20136] close(3)                    = 0
[pid 20136] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20136] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20136] write(4, "78", 2)           = 2
[pid 20136] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20136] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20136] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20136] exit_group(0)               = ?
[pid 20136] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20136, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20137 attached
, child_tidptr=0x555555af35d0) = 20137
[pid 20137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20137] setpgid(0, 0)               = 0
[pid 20137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20137] write(3, "1000", 4)         = 4
[pid 20137] close(3)                    = 0
[pid 20137] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20137] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20137] write(4, "78", 2)           = 2
[pid 20137] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20137] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20137] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20137] exit_group(0)               = ?
[pid 20137] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20137, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20138
./strace-static-x86_64: Process 20138 attached
[pid 20138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20138] setpgid(0, 0)               = 0
[pid 20138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20138] write(3, "1000", 4)         = 4
[pid 20138] close(3)                    = 0
[pid 20138] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20138] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20138] write(4, "78", 2)           = 2
[pid 20138] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20138] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20138] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20138] exit_group(0)               = ?
[pid 20138] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20138, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20139
./strace-static-x86_64: Process 20139 attached
[pid 20139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20139] setpgid(0, 0)               = 0
[pid 20139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20139] write(3, "1000", 4)         = 4
[pid 20139] close(3)                    = 0
[pid 20139] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20139] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20139] write(4, "78", 2)           = 2
[pid 20139] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20139] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20139] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20139] exit_group(0)               = ?
[pid 20139] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20139, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20140 attached
, child_tidptr=0x555555af35d0) = 20140
[pid 20140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20140] setpgid(0, 0)               = 0
[pid 20140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20140] write(3, "1000", 4)         = 4
[pid 20140] close(3)                    = 0
[pid 20140] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20140] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20140] write(4, "78", 2)           = 2
[pid 20140] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20140] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20140] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20140] exit_group(0)               = ?
[pid 20140] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20140, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20141 attached
, child_tidptr=0x555555af35d0) = 20141
[pid 20141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20141] setpgid(0, 0)               = 0
[pid 20141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20141] write(3, "1000", 4)         = 4
[pid 20141] close(3)                    = 0
[pid 20141] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20141] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20141] write(4, "78", 2)           = 2
[pid 20141] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20141] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20141] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20141] exit_group(0)               = ?
[pid 20141] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20141, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20142
./strace-static-x86_64: Process 20142 attached
[pid 20142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20142] setpgid(0, 0)               = 0
[pid 20142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20142] write(3, "1000", 4)         = 4
[pid 20142] close(3)                    = 0
[pid 20142] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20142] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20142] write(4, "78", 2)           = 2
[pid 20142] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20142] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20142] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20142] exit_group(0)               = ?
[pid 20142] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20142, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20143
./strace-static-x86_64: Process 20143 attached
[pid 20143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20143] setpgid(0, 0)               = 0
[pid 20143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20143] write(3, "1000", 4)         = 4
[pid 20143] close(3)                    = 0
[pid 20143] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20143] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20143] write(4, "78", 2)           = 2
[pid 20143] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20143] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20143] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20143] exit_group(0)               = ?
[pid 20143] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20143, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20144
./strace-static-x86_64: Process 20144 attached
[pid 20144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20144] setpgid(0, 0)               = 0
[pid 20144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20144] write(3, "1000", 4)         = 4
[pid 20144] close(3)                    = 0
[pid 20144] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20144] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20144] write(4, "78", 2)           = 2
[pid 20144] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20144] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20144] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20144] exit_group(0)               = ?
[pid 20144] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20144, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20145 attached
, child_tidptr=0x555555af35d0) = 20145
[pid 20145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20145] setpgid(0, 0)               = 0
[pid 20145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20145] write(3, "1000", 4)         = 4
[pid 20145] close(3)                    = 0
[pid 20145] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20145] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20145] write(4, "78", 2)           = 2
[pid 20145] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20145] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20145] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20145] exit_group(0)               = ?
[pid 20145] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20145, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20146
./strace-static-x86_64: Process 20146 attached
[pid 20146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20146] setpgid(0, 0)               = 0
[pid 20146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20146] write(3, "1000", 4)         = 4
[pid 20146] close(3)                    = 0
[pid 20146] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20146] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20146] write(4, "78", 2)           = 2
[pid 20146] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20146] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20146] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20146] exit_group(0)               = ?
[pid 20146] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20146, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20147 attached
, child_tidptr=0x555555af35d0) = 20147
[pid 20147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20147] setpgid(0, 0)               = 0
[pid 20147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20147] write(3, "1000", 4)         = 4
[pid 20147] close(3)                    = 0
[pid 20147] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20147] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20147] write(4, "78", 2)           = 2
[pid 20147] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20147] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20147] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20147] exit_group(0)               = ?
[pid 20147] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20147, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20148
./strace-static-x86_64: Process 20148 attached
[pid 20148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20148] setpgid(0, 0)               = 0
[pid 20148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20148] write(3, "1000", 4)         = 4
[pid 20148] close(3)                    = 0
[pid 20148] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20148] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20148] write(4, "78", 2)           = 2
[pid 20148] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20148] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20148] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20148] exit_group(0)               = ?
[pid 20148] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20148, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20149
./strace-static-x86_64: Process 20149 attached
[pid 20149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20149] setpgid(0, 0)               = 0
[pid 20149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20149] write(3, "1000", 4)         = 4
[pid 20149] close(3)                    = 0
[pid 20149] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20149] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20149] write(4, "78", 2)           = 2
[pid 20149] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20149] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20149] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20149] exit_group(0)               = ?
[pid 20149] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20149, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20150
./strace-static-x86_64: Process 20150 attached
[pid 20150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20150] setpgid(0, 0)               = 0
[pid 20150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20150] write(3, "1000", 4)         = 4
[pid 20150] close(3)                    = 0
[pid 20150] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20150] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20150] write(4, "78", 2)           = 2
[pid 20150] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20150] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20150] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20150] exit_group(0)               = ?
[pid 20150] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20150, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20151
./strace-static-x86_64: Process 20151 attached
[pid 20151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20151] setpgid(0, 0)               = 0
[pid 20151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20151] write(3, "1000", 4)         = 4
[pid 20151] close(3)                    = 0
[pid 20151] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20151] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20151] write(4, "78", 2)           = 2
[pid 20151] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20151] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20151] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20151] exit_group(0)               = ?
[pid 20151] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20151, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20152 attached
, child_tidptr=0x555555af35d0) = 20152
[pid 20152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20152] setpgid(0, 0)               = 0
[pid 20152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20152] write(3, "1000", 4)         = 4
[pid 20152] close(3)                    = 0
[pid 20152] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20152] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20152] write(4, "78", 2)           = 2
[pid 20152] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20152] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20152] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20152] exit_group(0)               = ?
[pid 20152] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20152, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20153 attached
, child_tidptr=0x555555af35d0) = 20153
[pid 20153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20153] setpgid(0, 0)               = 0
[pid 20153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20153] write(3, "1000", 4)         = 4
[pid 20153] close(3)                    = 0
[pid 20153] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20153] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20153] write(4, "78", 2)           = 2
[pid 20153] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20153] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20153] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20153] exit_group(0)               = ?
[pid 20153] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20153, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20154
./strace-static-x86_64: Process 20154 attached
[pid 20154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20154] setpgid(0, 0)               = 0
[pid 20154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20154] write(3, "1000", 4)         = 4
[pid 20154] close(3)                    = 0
[pid 20154] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20154] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20154] write(4, "78", 2)           = 2
[pid 20154] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20154] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20154] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20154] exit_group(0)               = ?
[pid 20154] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20154, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20155 attached
, child_tidptr=0x555555af35d0) = 20155
[pid 20155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20155] setpgid(0, 0)               = 0
[pid 20155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20155] write(3, "1000", 4)         = 4
[pid 20155] close(3)                    = 0
[pid 20155] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20155] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20155] write(4, "78", 2)           = 2
[pid 20155] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20155] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20155] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20155] exit_group(0)               = ?
[pid 20155] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20155, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20156 attached
, child_tidptr=0x555555af35d0) = 20156
[pid 20156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20156] setpgid(0, 0)               = 0
[pid 20156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20156] write(3, "1000", 4)         = 4
[pid 20156] close(3)                    = 0
[pid 20156] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20156] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20156] write(4, "78", 2)           = 2
[pid 20156] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20156] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20156] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20156] exit_group(0)               = ?
[pid 20156] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20156, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20157
./strace-static-x86_64: Process 20157 attached
[pid 20157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20157] setpgid(0, 0)               = 0
[pid 20157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20157] write(3, "1000", 4)         = 4
[pid 20157] close(3)                    = 0
[pid 20157] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20157] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20157] write(4, "78", 2)           = 2
[pid 20157] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20157] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20157] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20157] exit_group(0)               = ?
[pid 20157] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20157, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20158 attached
, child_tidptr=0x555555af35d0) = 20158
[pid 20158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20158] setpgid(0, 0)               = 0
[pid 20158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20158] write(3, "1000", 4)         = 4
[pid 20158] close(3)                    = 0
[pid 20158] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20158] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20158] write(4, "78", 2)           = 2
[pid 20158] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20158] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20158] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20158] exit_group(0)               = ?
[pid 20158] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20158, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20159
./strace-static-x86_64: Process 20159 attached
[pid 20159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20159] setpgid(0, 0)               = 0
[pid 20159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20159] write(3, "1000", 4)         = 4
[pid 20159] close(3)                    = 0
[pid 20159] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20159] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20159] write(4, "78", 2)           = 2
[pid 20159] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20159] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20159] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20159] exit_group(0)               = ?
[pid 20159] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20159, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20160
./strace-static-x86_64: Process 20160 attached
[pid 20160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20160] setpgid(0, 0)               = 0
[pid 20160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20160] write(3, "1000", 4)         = 4
[pid 20160] close(3)                    = 0
[pid 20160] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20160] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20160] write(4, "78", 2)           = 2
[pid 20160] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20160] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20160] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20160] exit_group(0)               = ?
[pid 20160] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20160, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20161
./strace-static-x86_64: Process 20161 attached
[pid 20161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20161] setpgid(0, 0)               = 0
[pid 20161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20161] write(3, "1000", 4)         = 4
[pid 20161] close(3)                    = 0
[pid 20161] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20161] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20161] write(4, "78", 2)           = 2
[pid 20161] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20161] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20161] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20161] exit_group(0)               = ?
[pid 20161] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20161, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20162 attached
, child_tidptr=0x555555af35d0) = 20162
[pid 20162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20162] setpgid(0, 0)               = 0
[pid 20162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20162] write(3, "1000", 4)         = 4
[pid 20162] close(3)                    = 0
[pid 20162] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20162] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20162] write(4, "78", 2)           = 2
[pid 20162] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20162] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20162] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20162] exit_group(0)               = ?
[pid 20162] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20162, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20163
./strace-static-x86_64: Process 20163 attached
[pid 20163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20163] setpgid(0, 0)               = 0
[pid 20163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20163] write(3, "1000", 4)         = 4
[pid 20163] close(3)                    = 0
[pid 20163] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20163] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20163] write(4, "78", 2)           = 2
[pid 20163] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20163] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20163] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20163] exit_group(0)               = ?
[pid 20163] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20163, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20164
./strace-static-x86_64: Process 20164 attached
[pid 20164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20164] setpgid(0, 0)               = 0
[pid 20164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20164] write(3, "1000", 4)         = 4
[pid 20164] close(3)                    = 0
[pid 20164] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20164] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20164] write(4, "78", 2)           = 2
[pid 20164] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20164] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20164] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20164] exit_group(0)               = ?
[pid 20164] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20164, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20165
./strace-static-x86_64: Process 20165 attached
[pid 20165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20165] setpgid(0, 0)               = 0
[pid 20165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20165] write(3, "1000", 4)         = 4
[pid 20165] close(3)                    = 0
[pid 20165] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20165] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20165] write(4, "78", 2)           = 2
[pid 20165] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20165] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20165] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20165] exit_group(0)               = ?
[pid 20165] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20165, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20166
./strace-static-x86_64: Process 20166 attached
[pid 20166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20166] setpgid(0, 0)               = 0
[pid 20166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20166] write(3, "1000", 4)         = 4
[pid 20166] close(3)                    = 0
[pid 20166] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20166] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20166] write(4, "78", 2)           = 2
[pid 20166] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20166] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20166] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20166] exit_group(0)               = ?
[pid 20166] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20166, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20167 attached
, child_tidptr=0x555555af35d0) = 20167
[pid 20167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20167] setpgid(0, 0)               = 0
[pid 20167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20167] write(3, "1000", 4)         = 4
[pid 20167] close(3)                    = 0
[pid 20167] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20167] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20167] write(4, "78", 2)           = 2
[pid 20167] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20167] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20167] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20167] exit_group(0)               = ?
[pid 20167] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20167, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20168
./strace-static-x86_64: Process 20168 attached
[pid 20168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20168] setpgid(0, 0)               = 0
[pid 20168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20168] write(3, "1000", 4)         = 4
[pid 20168] close(3)                    = 0
[pid 20168] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20168] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20168] write(4, "78", 2)           = 2
[pid 20168] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20168] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20168] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20168] exit_group(0)               = ?
[pid 20168] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20168, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20169 attached
, child_tidptr=0x555555af35d0) = 20169
[pid 20169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20169] setpgid(0, 0)               = 0
[pid 20169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20169] write(3, "1000", 4)         = 4
[pid 20169] close(3)                    = 0
[pid 20169] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20169] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20169] write(4, "78", 2)           = 2
[pid 20169] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20169] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20169] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20169] exit_group(0)               = ?
[pid 20169] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20169, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20170 attached
, child_tidptr=0x555555af35d0) = 20170
[pid 20170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20170] setpgid(0, 0)               = 0
[pid 20170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20170] write(3, "1000", 4)         = 4
[pid 20170] close(3)                    = 0
[pid 20170] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20170] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20170] write(4, "78", 2)           = 2
[pid 20170] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20170] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20170] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20170] exit_group(0)               = ?
[pid 20170] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20170, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20171 attached
, child_tidptr=0x555555af35d0) = 20171
[pid 20171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20171] setpgid(0, 0)               = 0
[pid 20171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20171] write(3, "1000", 4)         = 4
[pid 20171] close(3)                    = 0
[pid 20171] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20171] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20171] write(4, "78", 2)           = 2
[pid 20171] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20171] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20171] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20171] exit_group(0)               = ?
[pid 20171] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20171, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20172 attached
, child_tidptr=0x555555af35d0) = 20172
[pid 20172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20172] setpgid(0, 0)               = 0
[pid 20172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20172] write(3, "1000", 4)         = 4
[pid 20172] close(3)                    = 0
[pid 20172] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20172] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20172] write(4, "78", 2)           = 2
[pid 20172] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20172] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20172] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20172] exit_group(0)               = ?
[pid 20172] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20172, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20173 attached
, child_tidptr=0x555555af35d0) = 20173
[pid 20173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20173] setpgid(0, 0)               = 0
[pid 20173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20173] write(3, "1000", 4)         = 4
[pid 20173] close(3)                    = 0
[pid 20173] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20173] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20173] write(4, "78", 2)           = 2
[pid 20173] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20173] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20173] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20173] exit_group(0)               = ?
[pid 20173] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20173, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20174 attached
, child_tidptr=0x555555af35d0) = 20174
[pid 20174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20174] setpgid(0, 0)               = 0
[pid 20174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20174] write(3, "1000", 4)         = 4
[pid 20174] close(3)                    = 0
[pid 20174] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20174] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20174] write(4, "78", 2)           = 2
[pid 20174] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20174] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20174] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20174] exit_group(0)               = ?
[pid 20174] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20174, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20175 attached
, child_tidptr=0x555555af35d0) = 20175
[pid 20175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20175] setpgid(0, 0)               = 0
[pid 20175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20175] write(3, "1000", 4)         = 4
[pid 20175] close(3)                    = 0
[pid 20175] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20175] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20175] write(4, "78", 2)           = 2
[pid 20175] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20175] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20175] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20175] exit_group(0)               = ?
[pid 20175] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20175, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20176 attached
, child_tidptr=0x555555af35d0) = 20176
[pid 20176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20176] setpgid(0, 0)               = 0
[pid 20176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20176] write(3, "1000", 4)         = 4
[pid 20176] close(3)                    = 0
[pid 20176] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20176] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20176] write(4, "78", 2)           = 2
[pid 20176] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20176] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20176] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20176] exit_group(0)               = ?
[pid 20176] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20176, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20177 attached
, child_tidptr=0x555555af35d0) = 20177
[pid 20177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20177] setpgid(0, 0)               = 0
[pid 20177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20177] write(3, "1000", 4)         = 4
[pid 20177] close(3)                    = 0
[pid 20177] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20177] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20177] write(4, "78", 2)           = 2
[pid 20177] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20177] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20177] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20177] exit_group(0)               = ?
[pid 20177] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20177, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20178 attached
, child_tidptr=0x555555af35d0) = 20178
[pid 20178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20178] setpgid(0, 0)               = 0
[pid 20178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20178] write(3, "1000", 4)         = 4
[pid 20178] close(3)                    = 0
[pid 20178] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20178] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20178] write(4, "78", 2)           = 2
[pid 20178] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20178] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20178] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20178] exit_group(0)               = ?
[pid 20178] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20178, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20179
./strace-static-x86_64: Process 20179 attached
[pid 20179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20179] setpgid(0, 0)               = 0
[pid 20179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20179] write(3, "1000", 4)         = 4
[pid 20179] close(3)                    = 0
[pid 20179] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20179] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20179] write(4, "78", 2)           = 2
[pid 20179] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20179] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20179] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20179] exit_group(0)               = ?
[pid 20179] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20179, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20180 attached
, child_tidptr=0x555555af35d0) = 20180
[pid 20180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20180] setpgid(0, 0)               = 0
[pid 20180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20180] write(3, "1000", 4)         = 4
[pid 20180] close(3)                    = 0
[pid 20180] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20180] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20180] write(4, "78", 2)           = 2
[pid 20180] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20180] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20180] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20180] exit_group(0)               = ?
[pid 20180] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20180, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20181
./strace-static-x86_64: Process 20181 attached
[pid 20181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20181] setpgid(0, 0)               = 0
[pid 20181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20181] write(3, "1000", 4)         = 4
[pid 20181] close(3)                    = 0
[pid 20181] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20181] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20181] write(4, "78", 2)           = 2
[pid 20181] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20181] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20181] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20181] exit_group(0)               = ?
[pid 20181] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20181, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20182
./strace-static-x86_64: Process 20182 attached
[pid 20182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20182] setpgid(0, 0)               = 0
[pid 20182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20182] write(3, "1000", 4)         = 4
[pid 20182] close(3)                    = 0
[pid 20182] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20182] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20182] write(4, "78", 2)           = 2
[pid 20182] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20182] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20182] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20182] exit_group(0)               = ?
[pid 20182] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20182, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20183 attached
, child_tidptr=0x555555af35d0) = 20183
[pid 20183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20183] setpgid(0, 0)               = 0
[pid 20183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20183] write(3, "1000", 4)         = 4
[pid 20183] close(3)                    = 0
[pid 20183] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20183] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20183] write(4, "78", 2)           = 2
[pid 20183] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20183] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20183] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20183] exit_group(0)               = ?
[pid 20183] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20183, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20184 attached
, child_tidptr=0x555555af35d0) = 20184
[pid 20184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20184] setpgid(0, 0)               = 0
[pid 20184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20184] write(3, "1000", 4)         = 4
[pid 20184] close(3)                    = 0
[pid 20184] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20184] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20184] write(4, "78", 2)           = 2
[pid 20184] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20184] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20184] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20184] exit_group(0)               = ?
[pid 20184] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20184, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20185
./strace-static-x86_64: Process 20185 attached
[pid 20185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20185] setpgid(0, 0)               = 0
[pid 20185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20185] write(3, "1000", 4)         = 4
[pid 20185] close(3)                    = 0
[pid 20185] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20185] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20185] write(4, "78", 2)           = 2
[pid 20185] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20185] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20185] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20185] exit_group(0)               = ?
[pid 20185] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20185, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20186
./strace-static-x86_64: Process 20186 attached
[pid 20186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20186] setpgid(0, 0)               = 0
[pid 20186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20186] write(3, "1000", 4)         = 4
[pid 20186] close(3)                    = 0
[pid 20186] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20186] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20186] write(4, "78", 2)           = 2
[pid 20186] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20186] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20186] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20186] exit_group(0)               = ?
[pid 20186] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20186, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20187 attached
, child_tidptr=0x555555af35d0) = 20187
[pid 20187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20187] setpgid(0, 0)               = 0
[pid 20187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20187] write(3, "1000", 4)         = 4
[pid 20187] close(3)                    = 0
[pid 20187] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20187] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20187] write(4, "78", 2)           = 2
[pid 20187] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20187] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20187] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20187] exit_group(0)               = ?
[pid 20187] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20187, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20188 attached
, child_tidptr=0x555555af35d0) = 20188
[pid 20188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20188] setpgid(0, 0)               = 0
[pid 20188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20188] write(3, "1000", 4)         = 4
[pid 20188] close(3)                    = 0
[pid 20188] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20188] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20188] write(4, "78", 2)           = 2
[pid 20188] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20188] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20188] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20188] exit_group(0)               = ?
[pid 20188] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20188, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20189 attached
, child_tidptr=0x555555af35d0) = 20189
[pid 20189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20189] setpgid(0, 0)               = 0
[pid 20189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20189] write(3, "1000", 4)         = 4
[pid 20189] close(3)                    = 0
[pid 20189] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20189] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20189] write(4, "78", 2)           = 2
[pid 20189] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20189] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20189] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20189] exit_group(0)               = ?
[pid 20189] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20189, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20190 attached
, child_tidptr=0x555555af35d0) = 20190
[pid 20190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20190] setpgid(0, 0)               = 0
[pid 20190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20190] write(3, "1000", 4)         = 4
[pid 20190] close(3)                    = 0
[pid 20190] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20190] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20190] write(4, "78", 2)           = 2
[pid 20190] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20190] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20190] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20190] exit_group(0)               = ?
[pid 20190] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20190, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20191 attached
, child_tidptr=0x555555af35d0) = 20191
[pid 20191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20191] setpgid(0, 0)               = 0
[pid 20191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20191] write(3, "1000", 4)         = 4
[pid 20191] close(3)                    = 0
[pid 20191] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20191] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20191] write(4, "78", 2)           = 2
[pid 20191] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20191] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20191] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20191] exit_group(0)               = ?
[pid 20191] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20191, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20192
./strace-static-x86_64: Process 20192 attached
[pid 20192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20192] setpgid(0, 0)               = 0
[pid 20192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20192] write(3, "1000", 4)         = 4
[pid 20192] close(3)                    = 0
[pid 20192] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20192] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20192] write(4, "78", 2)           = 2
[pid 20192] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20192] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20192] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20192] exit_group(0)               = ?
[pid 20192] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20192, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20193
./strace-static-x86_64: Process 20193 attached
[pid 20193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20193] setpgid(0, 0)               = 0
[pid 20193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20193] write(3, "1000", 4)         = 4
[pid 20193] close(3)                    = 0
[pid 20193] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20193] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20193] write(4, "78", 2)           = 2
[pid 20193] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20193] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20193] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20193] exit_group(0)               = ?
[pid 20193] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20193, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20194 attached
, child_tidptr=0x555555af35d0) = 20194
[pid 20194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20194] setpgid(0, 0)               = 0
[pid 20194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20194] write(3, "1000", 4)         = 4
[pid 20194] close(3)                    = 0
[pid 20194] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20194] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20194] write(4, "78", 2)           = 2
[pid 20194] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20194] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20194] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20194] exit_group(0)               = ?
[pid 20194] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20194, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20195 attached
, child_tidptr=0x555555af35d0) = 20195
[pid 20195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20195] setpgid(0, 0)               = 0
[pid 20195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20195] write(3, "1000", 4)         = 4
[pid 20195] close(3)                    = 0
[pid 20195] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20195] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20195] write(4, "78", 2)           = 2
[pid 20195] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20195] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20195] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20195] exit_group(0)               = ?
[pid 20195] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20195, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20196
./strace-static-x86_64: Process 20196 attached
[pid 20196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20196] setpgid(0, 0)               = 0
[pid 20196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20196] write(3, "1000", 4)         = 4
[pid 20196] close(3)                    = 0
[pid 20196] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20196] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20196] write(4, "78", 2)           = 2
[pid 20196] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20196] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20196] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20196] exit_group(0)               = ?
[pid 20196] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20196, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20197 attached
, child_tidptr=0x555555af35d0) = 20197
[pid 20197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20197] setpgid(0, 0)               = 0
[pid 20197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20197] write(3, "1000", 4)         = 4
[pid 20197] close(3)                    = 0
[pid 20197] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20197] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20197] write(4, "78", 2)           = 2
[pid 20197] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20197] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20197] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20197] exit_group(0)               = ?
[pid 20197] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20197, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20198
./strace-static-x86_64: Process 20198 attached
[pid 20198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20198] setpgid(0, 0)               = 0
[pid 20198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20198] write(3, "1000", 4)         = 4
[pid 20198] close(3)                    = 0
[pid 20198] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20198] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20198] write(4, "78", 2)           = 2
[pid 20198] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20198] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20198] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20198] exit_group(0)               = ?
[pid 20198] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20198, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20199
./strace-static-x86_64: Process 20199 attached
[pid 20199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20199] setpgid(0, 0)               = 0
[pid 20199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20199] write(3, "1000", 4)         = 4
[pid 20199] close(3)                    = 0
[pid 20199] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20199] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20199] write(4, "78", 2)           = 2
[pid 20199] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20199] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20199] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20199] exit_group(0)               = ?
[pid 20199] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20199, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20200
./strace-static-x86_64: Process 20200 attached
[pid 20200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20200] setpgid(0, 0)               = 0
[pid 20200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20200] write(3, "1000", 4)         = 4
[pid 20200] close(3)                    = 0
[pid 20200] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20200] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20200] write(4, "78", 2)           = 2
[pid 20200] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20200] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20200] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20200] exit_group(0)               = ?
[pid 20200] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20200, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20201 attached
, child_tidptr=0x555555af35d0) = 20201
[pid 20201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20201] setpgid(0, 0)               = 0
[pid 20201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20201] write(3, "1000", 4)         = 4
[pid 20201] close(3)                    = 0
[pid 20201] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20201] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20201] write(4, "78", 2)           = 2
[pid 20201] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20201] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20201] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20201] exit_group(0)               = ?
[pid 20201] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20201, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20202
./strace-static-x86_64: Process 20202 attached
[pid 20202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20202] setpgid(0, 0)               = 0
[pid 20202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20202] write(3, "1000", 4)         = 4
[pid 20202] close(3)                    = 0
[pid 20202] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20202] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20202] write(4, "78", 2)           = 2
[pid 20202] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20202] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20202] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20202] exit_group(0)               = ?
[pid 20202] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20202, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20203 attached
, child_tidptr=0x555555af35d0) = 20203
[pid 20203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20203] setpgid(0, 0)               = 0
[pid 20203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20203] write(3, "1000", 4)         = 4
[pid 20203] close(3)                    = 0
[pid 20203] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20203] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20203] write(4, "78", 2)           = 2
[pid 20203] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20203] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20203] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20203] exit_group(0)               = ?
[pid 20203] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20203, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20204 attached
, child_tidptr=0x555555af35d0) = 20204
[pid 20204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20204] setpgid(0, 0)               = 0
[pid 20204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20204] write(3, "1000", 4)         = 4
[pid 20204] close(3)                    = 0
[pid 20204] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20204] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20204] write(4, "78", 2)           = 2
[pid 20204] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20204] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20204] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20204] exit_group(0)               = ?
[pid 20204] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20204, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20205 attached
, child_tidptr=0x555555af35d0) = 20205
[pid 20205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20205] setpgid(0, 0)               = 0
[pid 20205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20205] write(3, "1000", 4)         = 4
[pid 20205] close(3)                    = 0
[pid 20205] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20205] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20205] write(4, "78", 2)           = 2
[pid 20205] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20205] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20205] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20205] exit_group(0)               = ?
[pid 20205] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20205, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20206 attached
, child_tidptr=0x555555af35d0) = 20206
[pid 20206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20206] setpgid(0, 0)               = 0
[pid 20206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20206] write(3, "1000", 4)         = 4
[pid 20206] close(3)                    = 0
[pid 20206] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20206] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20206] write(4, "78", 2)           = 2
[pid 20206] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20206] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20206] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20206] exit_group(0)               = ?
[pid 20206] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20206, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20207 attached
, child_tidptr=0x555555af35d0) = 20207
[pid 20207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20207] setpgid(0, 0)               = 0
[pid 20207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20207] write(3, "1000", 4)         = 4
[pid 20207] close(3)                    = 0
[pid 20207] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20207] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20207] write(4, "78", 2)           = 2
[pid 20207] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20207] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20207] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20207] exit_group(0)               = ?
[pid 20207] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20207, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20208 attached
, child_tidptr=0x555555af35d0) = 20208
[pid 20208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20208] setpgid(0, 0)               = 0
[pid 20208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20208] write(3, "1000", 4)         = 4
[pid 20208] close(3)                    = 0
[pid 20208] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20208] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20208] write(4, "78", 2)           = 2
[pid 20208] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20208] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20208] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20208] exit_group(0)               = ?
[pid 20208] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20208, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20209 attached
, child_tidptr=0x555555af35d0) = 20209
[pid 20209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20209] setpgid(0, 0)               = 0
[pid 20209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20209] write(3, "1000", 4)         = 4
[pid 20209] close(3)                    = 0
[pid 20209] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20209] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20209] write(4, "78", 2)           = 2
[pid 20209] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20209] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20209] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20209] exit_group(0)               = ?
[pid 20209] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20209, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20210
./strace-static-x86_64: Process 20210 attached
[pid 20210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20210] setpgid(0, 0)               = 0
[pid 20210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20210] write(3, "1000", 4)         = 4
[pid 20210] close(3)                    = 0
[pid 20210] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20210] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20210] write(4, "78", 2)           = 2
[pid 20210] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20210] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20210] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20210] exit_group(0)               = ?
[pid 20210] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20210, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20211
./strace-static-x86_64: Process 20211 attached
[pid 20211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20211] setpgid(0, 0)               = 0
[pid 20211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20211] write(3, "1000", 4)         = 4
[pid 20211] close(3)                    = 0
[pid 20211] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20211] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20211] write(4, "78", 2)           = 2
[pid 20211] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20211] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20211] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20211] exit_group(0)               = ?
[pid 20211] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20211, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20212 attached
, child_tidptr=0x555555af35d0) = 20212
[pid 20212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20212] setpgid(0, 0)               = 0
[pid 20212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20212] write(3, "1000", 4)         = 4
[pid 20212] close(3)                    = 0
[pid 20212] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20212] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20212] write(4, "78", 2)           = 2
[pid 20212] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20212] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20212] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20212] exit_group(0)               = ?
[pid 20212] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20212, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20213
./strace-static-x86_64: Process 20213 attached
[pid 20213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20213] setpgid(0, 0)               = 0
[pid 20213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20213] write(3, "1000", 4)         = 4
[pid 20213] close(3)                    = 0
[pid 20213] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20213] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20213] write(4, "78", 2)           = 2
[pid 20213] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20213] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20213] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20213] exit_group(0)               = ?
[pid 20213] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20213, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20214 attached
, child_tidptr=0x555555af35d0) = 20214
[pid 20214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20214] setpgid(0, 0)               = 0
[pid 20214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20214] write(3, "1000", 4)         = 4
[pid 20214] close(3)                    = 0
[pid 20214] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20214] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20214] write(4, "78", 2)           = 2
[pid 20214] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20214] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20214] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20214] exit_group(0)               = ?
[pid 20214] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20214, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20215
./strace-static-x86_64: Process 20215 attached
[pid 20215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20215] setpgid(0, 0)               = 0
[pid 20215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20215] write(3, "1000", 4)         = 4
[pid 20215] close(3)                    = 0
[pid 20215] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20215] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20215] write(4, "78", 2)           = 2
[pid 20215] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20215] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20215] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20215] exit_group(0)               = ?
[pid 20215] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20215, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20216 attached
, child_tidptr=0x555555af35d0) = 20216
[pid 20216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20216] setpgid(0, 0)               = 0
[pid 20216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20216] write(3, "1000", 4)         = 4
[pid 20216] close(3)                    = 0
[pid 20216] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20216] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20216] write(4, "78", 2)           = 2
[pid 20216] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20216] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20216] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20216] exit_group(0)               = ?
[pid 20216] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20216, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20217 attached
, child_tidptr=0x555555af35d0) = 20217
[pid 20217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20217] setpgid(0, 0)               = 0
[pid 20217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20217] write(3, "1000", 4)         = 4
[pid 20217] close(3)                    = 0
[pid 20217] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20217] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20217] write(4, "78", 2)           = 2
[pid 20217] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20217] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20217] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20217] exit_group(0)               = ?
[pid 20217] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20217, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20218
./strace-static-x86_64: Process 20218 attached
[pid 20218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20218] setpgid(0, 0)               = 0
[pid 20218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20218] write(3, "1000", 4)         = 4
[pid 20218] close(3)                    = 0
[pid 20218] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20218] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20218] write(4, "78", 2)           = 2
[pid 20218] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20218] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20218] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20218] exit_group(0)               = ?
[pid 20218] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20218, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20219
./strace-static-x86_64: Process 20219 attached
[pid 20219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20219] setpgid(0, 0)               = 0
[pid 20219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20219] write(3, "1000", 4)         = 4
[pid 20219] close(3)                    = 0
[pid 20219] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20219] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20219] write(4, "78", 2)           = 2
[pid 20219] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20219] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20219] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20219] exit_group(0)               = ?
[pid 20219] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20219, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20220 attached
, child_tidptr=0x555555af35d0) = 20220
[pid 20220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20220] setpgid(0, 0)               = 0
[pid 20220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20220] write(3, "1000", 4)         = 4
[pid 20220] close(3)                    = 0
[pid 20220] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20220] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20220] write(4, "78", 2)           = 2
[pid 20220] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20220] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20220] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20220] exit_group(0)               = ?
[pid 20220] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20220, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20221
./strace-static-x86_64: Process 20221 attached
[pid 20221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20221] setpgid(0, 0)               = 0
[pid 20221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20221] write(3, "1000", 4)         = 4
[pid 20221] close(3)                    = 0
[pid 20221] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20221] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20221] write(4, "78", 2)           = 2
[pid 20221] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20221] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20221] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20221] exit_group(0)               = ?
[pid 20221] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20221, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20222 attached
, child_tidptr=0x555555af35d0) = 20222
[pid 20222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20222] setpgid(0, 0)               = 0
[pid 20222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20222] write(3, "1000", 4)         = 4
[pid 20222] close(3)                    = 0
[pid 20222] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20222] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20222] write(4, "78", 2)           = 2
[pid 20222] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20222] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20222] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20222] exit_group(0)               = ?
[pid 20222] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20222, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20223 attached
, child_tidptr=0x555555af35d0) = 20223
[pid 20223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20223] setpgid(0, 0)               = 0
[pid 20223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20223] write(3, "1000", 4)         = 4
[pid 20223] close(3)                    = 0
[pid 20223] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20223] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20223] write(4, "78", 2)           = 2
[pid 20223] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20223] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20223] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20223] exit_group(0)               = ?
[pid 20223] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20223, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20224
./strace-static-x86_64: Process 20224 attached
[pid 20224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20224] setpgid(0, 0)               = 0
[pid 20224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20224] write(3, "1000", 4)         = 4
[pid 20224] close(3)                    = 0
[pid 20224] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20224] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20224] write(4, "78", 2)           = 2
[pid 20224] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20224] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20224] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20224] exit_group(0)               = ?
[pid 20224] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20224, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20225 attached
, child_tidptr=0x555555af35d0) = 20225
[pid 20225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20225] setpgid(0, 0)               = 0
[pid 20225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20225] write(3, "1000", 4)         = 4
[pid 20225] close(3)                    = 0
[pid 20225] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20225] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20225] write(4, "78", 2)           = 2
[pid 20225] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20225] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20225] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20225] exit_group(0)               = ?
[pid 20225] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20225, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20226 attached
, child_tidptr=0x555555af35d0) = 20226
[pid 20226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20226] setpgid(0, 0)               = 0
[pid 20226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20226] write(3, "1000", 4)         = 4
[pid 20226] close(3)                    = 0
[pid 20226] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20226] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20226] write(4, "78", 2)           = 2
[pid 20226] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20226] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20226] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20226] exit_group(0)               = ?
[pid 20226] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20226, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20227
./strace-static-x86_64: Process 20227 attached
[pid 20227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20227] setpgid(0, 0)               = 0
[pid 20227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20227] write(3, "1000", 4)         = 4
[pid 20227] close(3)                    = 0
[pid 20227] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20227] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20227] write(4, "78", 2)           = 2
[pid 20227] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20227] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20227] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20227] exit_group(0)               = ?
[pid 20227] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20227, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20228 attached
, child_tidptr=0x555555af35d0) = 20228
[pid 20228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20228] setpgid(0, 0)               = 0
[pid 20228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20228] write(3, "1000", 4)         = 4
[pid 20228] close(3)                    = 0
[pid 20228] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20228] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20228] write(4, "78", 2)           = 2
[pid 20228] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20228] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20228] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20228] exit_group(0)               = ?
[pid 20228] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20228, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20229 attached
, child_tidptr=0x555555af35d0) = 20229
[pid 20229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20229] setpgid(0, 0)               = 0
[pid 20229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20229] write(3, "1000", 4)         = 4
[pid 20229] close(3)                    = 0
[pid 20229] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20229] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20229] write(4, "78", 2)           = 2
[pid 20229] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20229] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20229] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20229] exit_group(0)               = ?
[pid 20229] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20229, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20230 attached
, child_tidptr=0x555555af35d0) = 20230
[pid 20230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20230] setpgid(0, 0)               = 0
[pid 20230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20230] write(3, "1000", 4)         = 4
[pid 20230] close(3)                    = 0
[pid 20230] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20230] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20230] write(4, "78", 2)           = 2
[pid 20230] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20230] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20230] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20230] exit_group(0)               = ?
[pid 20230] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20230, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20231 attached
, child_tidptr=0x555555af35d0) = 20231
[pid 20231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20231] setpgid(0, 0)               = 0
[pid 20231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20231] write(3, "1000", 4)         = 4
[pid 20231] close(3)                    = 0
[pid 20231] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20231] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20231] write(4, "78", 2)           = 2
[pid 20231] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20231] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20231] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20231] exit_group(0)               = ?
[pid 20231] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20231, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20232 attached
, child_tidptr=0x555555af35d0) = 20232
[pid 20232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20232] setpgid(0, 0)               = 0
[pid 20232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20232] write(3, "1000", 4)         = 4
[pid 20232] close(3)                    = 0
[pid 20232] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20232] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20232] write(4, "78", 2)           = 2
[pid 20232] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20232] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20232] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20232] exit_group(0)               = ?
[pid 20232] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20232, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20233 attached
, child_tidptr=0x555555af35d0) = 20233
[pid 20233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20233] setpgid(0, 0)               = 0
[pid 20233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20233] write(3, "1000", 4)         = 4
[pid 20233] close(3)                    = 0
[pid 20233] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20233] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20233] write(4, "78", 2)           = 2
[pid 20233] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20233] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20233] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20233] exit_group(0)               = ?
[pid 20233] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20233, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20234 attached
, child_tidptr=0x555555af35d0) = 20234
[pid 20234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20234] setpgid(0, 0)               = 0
[pid 20234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20234] write(3, "1000", 4)         = 4
[pid 20234] close(3)                    = 0
[pid 20234] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20234] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20234] write(4, "78", 2)           = 2
[pid 20234] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20234] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20234] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20234] exit_group(0)               = ?
[pid 20234] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20234, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20235 attached
, child_tidptr=0x555555af35d0) = 20235
[pid 20235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20235] setpgid(0, 0)               = 0
[pid 20235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20235] write(3, "1000", 4)         = 4
[pid 20235] close(3)                    = 0
[pid 20235] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20235] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20235] write(4, "78", 2)           = 2
[pid 20235] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20235] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20235] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20235] exit_group(0)               = ?
[pid 20235] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20235, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20236 attached
, child_tidptr=0x555555af35d0) = 20236
[pid 20236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20236] setpgid(0, 0)               = 0
[pid 20236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20236] write(3, "1000", 4)         = 4
[pid 20236] close(3)                    = 0
[pid 20236] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20236] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20236] write(4, "78", 2)           = 2
[pid 20236] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20236] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20236] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20236] exit_group(0)               = ?
[pid 20236] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20236, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20237 attached
, child_tidptr=0x555555af35d0) = 20237
[pid 20237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20237] setpgid(0, 0)               = 0
[pid 20237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20237] write(3, "1000", 4)         = 4
[pid 20237] close(3)                    = 0
[pid 20237] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20237] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20237] write(4, "78", 2)           = 2
[pid 20237] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20237] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20237] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20237] exit_group(0)               = ?
[pid 20237] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20237, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20238 attached
, child_tidptr=0x555555af35d0) = 20238
[pid 20238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20238] setpgid(0, 0)               = 0
[pid 20238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20238] write(3, "1000", 4)         = 4
[pid 20238] close(3)                    = 0
[pid 20238] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20238] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20238] write(4, "78", 2)           = 2
[pid 20238] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20238] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20238] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20238] exit_group(0)               = ?
[pid 20238] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20238, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20239 attached
, child_tidptr=0x555555af35d0) = 20239
[pid 20239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20239] setpgid(0, 0)               = 0
[pid 20239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20239] write(3, "1000", 4)         = 4
[pid 20239] close(3)                    = 0
[pid 20239] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20239] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20239] write(4, "78", 2)           = 2
[pid 20239] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20239] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20239] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20239] exit_group(0)               = ?
[pid 20239] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20239, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20240 attached
, child_tidptr=0x555555af35d0) = 20240
[pid 20240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20240] setpgid(0, 0)               = 0
[pid 20240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20240] write(3, "1000", 4)         = 4
[pid 20240] close(3)                    = 0
[pid 20240] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20240] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20240] write(4, "78", 2)           = 2
[pid 20240] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20240] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20240] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20240] exit_group(0)               = ?
[pid 20240] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20240, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20241 attached
, child_tidptr=0x555555af35d0) = 20241
[pid 20241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20241] setpgid(0, 0)               = 0
[pid 20241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20241] write(3, "1000", 4)         = 4
[pid 20241] close(3)                    = 0
[pid 20241] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20241] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20241] write(4, "78", 2)           = 2
[pid 20241] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20241] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20241] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20241] exit_group(0)               = ?
[pid 20241] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20241, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20242 attached
, child_tidptr=0x555555af35d0) = 20242
[pid 20242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20242] setpgid(0, 0)               = 0
[pid 20242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20242] write(3, "1000", 4)         = 4
[pid 20242] close(3)                    = 0
[pid 20242] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20242] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20242] write(4, "78", 2)           = 2
[pid 20242] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20242] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20242] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20242] exit_group(0)               = ?
[pid 20242] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20242, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20243
./strace-static-x86_64: Process 20243 attached
[pid 20243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20243] setpgid(0, 0)               = 0
[pid 20243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20243] write(3, "1000", 4)         = 4
[pid 20243] close(3)                    = 0
[pid 20243] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20243] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20243] write(4, "78", 2)           = 2
[pid 20243] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20243] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20243] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20243] exit_group(0)               = ?
[pid 20243] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20243, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20244 attached
, child_tidptr=0x555555af35d0) = 20244
[pid 20244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20244] setpgid(0, 0)               = 0
[pid 20244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20244] write(3, "1000", 4)         = 4
[pid 20244] close(3)                    = 0
[pid 20244] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20244] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20244] write(4, "78", 2)           = 2
[pid 20244] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20244] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20244] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20244] exit_group(0)               = ?
[pid 20244] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20244, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20245 attached
, child_tidptr=0x555555af35d0) = 20245
[pid 20245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20245] setpgid(0, 0)               = 0
[pid 20245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20245] write(3, "1000", 4)         = 4
[pid 20245] close(3)                    = 0
[pid 20245] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20245] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20245] write(4, "78", 2)           = 2
[pid 20245] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20245] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20245] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20245] exit_group(0)               = ?
[pid 20245] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20245, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20246 attached
, child_tidptr=0x555555af35d0) = 20246
[pid 20246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20246] setpgid(0, 0)               = 0
[pid 20246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20246] write(3, "1000", 4)         = 4
[pid 20246] close(3)                    = 0
[pid 20246] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20246] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20246] write(4, "78", 2)           = 2
[pid 20246] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20246] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20246] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20246] exit_group(0)               = ?
[pid 20246] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20246, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20247
./strace-static-x86_64: Process 20247 attached
[pid 20247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20247] setpgid(0, 0)               = 0
[pid 20247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20247] write(3, "1000", 4)         = 4
[pid 20247] close(3)                    = 0
[pid 20247] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20247] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20247] write(4, "78", 2)           = 2
[pid 20247] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20247] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20247] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20247] exit_group(0)               = ?
[pid 20247] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20247, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20248
./strace-static-x86_64: Process 20248 attached
[pid 20248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20248] setpgid(0, 0)               = 0
[pid 20248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20248] write(3, "1000", 4)         = 4
[pid 20248] close(3)                    = 0
[pid 20248] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20248] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20248] write(4, "78", 2)           = 2
[pid 20248] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20248] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20248] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20248] exit_group(0)               = ?
[pid 20248] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20248, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20249 attached
, child_tidptr=0x555555af35d0) = 20249
[pid 20249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20249] setpgid(0, 0)               = 0
[pid 20249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20249] write(3, "1000", 4)         = 4
[pid 20249] close(3)                    = 0
[pid 20249] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20249] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20249] write(4, "78", 2)           = 2
[pid 20249] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20249] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20249] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20249] exit_group(0)               = ?
[pid 20249] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20249, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20250
./strace-static-x86_64: Process 20250 attached
[pid 20250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20250] setpgid(0, 0)               = 0
[pid 20250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20250] write(3, "1000", 4)         = 4
[pid 20250] close(3)                    = 0
[pid 20250] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20250] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20250] write(4, "78", 2)           = 2
[pid 20250] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20250] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20250] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20250] exit_group(0)               = ?
[pid 20250] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20250, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20251
./strace-static-x86_64: Process 20251 attached
[pid 20251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20251] setpgid(0, 0)               = 0
[pid 20251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20251] write(3, "1000", 4)         = 4
[pid 20251] close(3)                    = 0
[pid 20251] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20251] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20251] write(4, "78", 2)           = 2
[pid 20251] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20251] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20251] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20251] exit_group(0)               = ?
[pid 20251] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20251, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20252 attached
, child_tidptr=0x555555af35d0) = 20252
[pid 20252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20252] setpgid(0, 0)               = 0
[pid 20252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20252] write(3, "1000", 4)         = 4
[pid 20252] close(3)                    = 0
[pid 20252] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20252] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20252] write(4, "78", 2)           = 2
[pid 20252] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20252] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20252] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20252] exit_group(0)               = ?
[pid 20252] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20252, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20253 attached
, child_tidptr=0x555555af35d0) = 20253
[pid 20253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20253] setpgid(0, 0)               = 0
[pid 20253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20253] write(3, "1000", 4)         = 4
[pid 20253] close(3)                    = 0
[pid 20253] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20253] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20253] write(4, "78", 2)           = 2
[pid 20253] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20253] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20253] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20253] exit_group(0)               = ?
[pid 20253] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20253, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20254 attached
, child_tidptr=0x555555af35d0) = 20254
[pid 20254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20254] setpgid(0, 0)               = 0
[pid 20254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20254] write(3, "1000", 4)         = 4
[pid 20254] close(3)                    = 0
[pid 20254] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20254] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20254] write(4, "78", 2)           = 2
[pid 20254] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20254] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20254] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20254] exit_group(0)               = ?
[pid 20254] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20254, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20255 attached
, child_tidptr=0x555555af35d0) = 20255
[pid 20255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20255] setpgid(0, 0)               = 0
[pid 20255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20255] write(3, "1000", 4)         = 4
[pid 20255] close(3)                    = 0
[pid 20255] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20255] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20255] write(4, "78", 2)           = 2
[pid 20255] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20255] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20255] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20255] exit_group(0)               = ?
[pid 20255] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20255, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20256
./strace-static-x86_64: Process 20256 attached
[pid 20256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20256] setpgid(0, 0)               = 0
[pid 20256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20256] write(3, "1000", 4)         = 4
[pid 20256] close(3)                    = 0
[pid 20256] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20256] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20256] write(4, "78", 2)           = 2
[pid 20256] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20256] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20256] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20256] exit_group(0)               = ?
[pid 20256] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20256, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20257
./strace-static-x86_64: Process 20257 attached
[pid 20257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20257] setpgid(0, 0)               = 0
[pid 20257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20257] write(3, "1000", 4)         = 4
[pid 20257] close(3)                    = 0
[pid 20257] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20257] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20257] write(4, "78", 2)           = 2
[pid 20257] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20257] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20257] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20257] exit_group(0)               = ?
[pid 20257] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20257, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20258
./strace-static-x86_64: Process 20258 attached
[pid 20258] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20258] setpgid(0, 0)               = 0
[pid 20258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20258] write(3, "1000", 4)         = 4
[pid 20258] close(3)                    = 0
[pid 20258] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20258] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20258] write(4, "78", 2)           = 2
[pid 20258] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20258] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20258] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20258] exit_group(0)               = ?
[pid 20258] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20258, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20259
./strace-static-x86_64: Process 20259 attached
[pid 20259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20259] setpgid(0, 0)               = 0
[pid 20259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20259] write(3, "1000", 4)         = 4
[pid 20259] close(3)                    = 0
[pid 20259] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20259] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20259] write(4, "78", 2)           = 2
[pid 20259] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20259] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20259] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20259] exit_group(0)               = ?
[pid 20259] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20259, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20260 attached
, child_tidptr=0x555555af35d0) = 20260
[pid 20260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20260] setpgid(0, 0)               = 0
[pid 20260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20260] write(3, "1000", 4)         = 4
[pid 20260] close(3)                    = 0
[pid 20260] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20260] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20260] write(4, "78", 2)           = 2
[pid 20260] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20260] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20260] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20260] exit_group(0)               = ?
[pid 20260] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20260, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20261 attached
, child_tidptr=0x555555af35d0) = 20261
[pid 20261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20261] setpgid(0, 0)               = 0
[pid 20261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20261] write(3, "1000", 4)         = 4
[pid 20261] close(3)                    = 0
[pid 20261] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20261] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20261] write(4, "78", 2)           = 2
[pid 20261] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20261] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20261] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20261] exit_group(0)               = ?
[pid 20261] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20261, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20262
./strace-static-x86_64: Process 20262 attached
[pid 20262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20262] setpgid(0, 0)               = 0
[pid 20262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20262] write(3, "1000", 4)         = 4
[pid 20262] close(3)                    = 0
[pid 20262] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20262] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20262] write(4, "78", 2)           = 2
[pid 20262] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20262] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20262] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20262] exit_group(0)               = ?
[pid 20262] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20262, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20263 attached
, child_tidptr=0x555555af35d0) = 20263
[pid 20263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20263] setpgid(0, 0)               = 0
[pid 20263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20263] write(3, "1000", 4)         = 4
[pid 20263] close(3)                    = 0
[pid 20263] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20263] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20263] write(4, "78", 2)           = 2
[pid 20263] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20263] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20263] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20263] exit_group(0)               = ?
[pid 20263] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20263, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20264 attached
, child_tidptr=0x555555af35d0) = 20264
[pid 20264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20264] setpgid(0, 0)               = 0
[pid 20264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20264] write(3, "1000", 4)         = 4
[pid 20264] close(3)                    = 0
[pid 20264] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20264] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20264] write(4, "78", 2)           = 2
[pid 20264] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20264] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20264] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20264] exit_group(0)               = ?
[pid 20264] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20264, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20265 attached
, child_tidptr=0x555555af35d0) = 20265
[pid 20265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20265] setpgid(0, 0)               = 0
[pid 20265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20265] write(3, "1000", 4)         = 4
[pid 20265] close(3)                    = 0
[pid 20265] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20265] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20265] write(4, "78", 2)           = 2
[pid 20265] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20265] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20265] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20265] exit_group(0)               = ?
[pid 20265] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20265, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20266 attached
, child_tidptr=0x555555af35d0) = 20266
[pid 20266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20266] setpgid(0, 0)               = 0
[pid 20266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20266] write(3, "1000", 4)         = 4
[pid 20266] close(3)                    = 0
[pid 20266] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20266] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20266] write(4, "78", 2)           = 2
[pid 20266] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20266] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20266] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20266] exit_group(0)               = ?
[pid 20266] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20266, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20267 attached
, child_tidptr=0x555555af35d0) = 20267
[pid 20267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20267] setpgid(0, 0)               = 0
[pid 20267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20267] write(3, "1000", 4)         = 4
[pid 20267] close(3)                    = 0
[pid 20267] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20267] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20267] write(4, "78", 2)           = 2
[pid 20267] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20267] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20267] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20267] exit_group(0)               = ?
[pid 20267] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20267, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20268 attached
, child_tidptr=0x555555af35d0) = 20268
[pid 20268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20268] setpgid(0, 0)               = 0
[pid 20268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20268] write(3, "1000", 4)         = 4
[pid 20268] close(3)                    = 0
[pid 20268] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20268] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20268] write(4, "78", 2)           = 2
[pid 20268] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20268] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20268] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20268] exit_group(0)               = ?
[pid 20268] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20268, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20269
./strace-static-x86_64: Process 20269 attached
[pid 20269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20269] setpgid(0, 0)               = 0
[pid 20269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20269] write(3, "1000", 4)         = 4
[pid 20269] close(3)                    = 0
[pid 20269] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20269] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20269] write(4, "78", 2)           = 2
[pid 20269] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20269] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20269] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20269] exit_group(0)               = ?
[pid 20269] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20269, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20270
./strace-static-x86_64: Process 20270 attached
[pid 20270] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20270] setpgid(0, 0)               = 0
[pid 20270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20270] write(3, "1000", 4)         = 4
[pid 20270] close(3)                    = 0
[pid 20270] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20270] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20270] write(4, "78", 2)           = 2
[pid 20270] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20270] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20270] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20270] exit_group(0)               = ?
[pid 20270] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20270, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20271
./strace-static-x86_64: Process 20271 attached
[pid 20271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20271] setpgid(0, 0)               = 0
[pid 20271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20271] write(3, "1000", 4)         = 4
[pid 20271] close(3)                    = 0
[pid 20271] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20271] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20271] write(4, "78", 2)           = 2
[pid 20271] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20271] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20271] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20271] exit_group(0)               = ?
[pid 20271] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20271, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20272 attached
, child_tidptr=0x555555af35d0) = 20272
[pid 20272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20272] setpgid(0, 0)               = 0
[pid 20272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20272] write(3, "1000", 4)         = 4
[pid 20272] close(3)                    = 0
[pid 20272] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20272] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20272] write(4, "78", 2)           = 2
[pid 20272] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20272] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20272] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20272] exit_group(0)               = ?
[pid 20272] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20272, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20273
./strace-static-x86_64: Process 20273 attached
[pid 20273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20273] setpgid(0, 0)               = 0
[pid 20273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20273] write(3, "1000", 4)         = 4
[pid 20273] close(3)                    = 0
[pid 20273] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20273] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20273] write(4, "78", 2)           = 2
[pid 20273] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20273] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20273] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20273] exit_group(0)               = ?
[pid 20273] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20273, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20274
./strace-static-x86_64: Process 20274 attached
[pid 20274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20274] setpgid(0, 0)               = 0
[pid 20274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20274] write(3, "1000", 4)         = 4
[pid 20274] close(3)                    = 0
[pid 20274] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20274] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20274] write(4, "78", 2)           = 2
[pid 20274] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20274] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20274] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20274] exit_group(0)               = ?
[pid 20274] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20274, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20275
./strace-static-x86_64: Process 20275 attached
[pid 20275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20275] setpgid(0, 0)               = 0
[pid 20275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20275] write(3, "1000", 4)         = 4
[pid 20275] close(3)                    = 0
[pid 20275] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20275] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20275] write(4, "78", 2)           = 2
[pid 20275] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20275] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20275] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20275] exit_group(0)               = ?
[pid 20275] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20275, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20276
./strace-static-x86_64: Process 20276 attached
[pid 20276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20276] setpgid(0, 0)               = 0
[pid 20276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20276] write(3, "1000", 4)         = 4
[pid 20276] close(3)                    = 0
[pid 20276] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20276] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20276] write(4, "78", 2)           = 2
[pid 20276] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20276] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20276] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20276] exit_group(0)               = ?
[pid 20276] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20276, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20277 attached
, child_tidptr=0x555555af35d0) = 20277
[pid 20277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20277] setpgid(0, 0)               = 0
[pid 20277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20277] write(3, "1000", 4)         = 4
[pid 20277] close(3)                    = 0
[pid 20277] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20277] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20277] write(4, "78", 2)           = 2
[pid 20277] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20277] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20277] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20277] exit_group(0)               = ?
[pid 20277] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20277, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20278 attached
, child_tidptr=0x555555af35d0) = 20278
[pid 20278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20278] setpgid(0, 0)               = 0
[pid 20278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20278] write(3, "1000", 4)         = 4
[pid 20278] close(3)                    = 0
[pid 20278] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20278] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20278] write(4, "78", 2)           = 2
[pid 20278] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20278] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20278] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20278] exit_group(0)               = ?
[pid 20278] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20278, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20279 attached
, child_tidptr=0x555555af35d0) = 20279
[pid 20279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20279] setpgid(0, 0)               = 0
[pid 20279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20279] write(3, "1000", 4)         = 4
[pid 20279] close(3)                    = 0
[pid 20279] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20279] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20279] write(4, "78", 2)           = 2
[pid 20279] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20279] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20279] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20279] exit_group(0)               = ?
[pid 20279] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20279, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20280 attached
 <unfinished ...>
[pid 20280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20280] setpgid(0, 0)               = 0
[pid 20280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 20280
[pid 20280] <... openat resumed>)       = 3
[pid 20280] write(3, "1000", 4)         = 4
[pid 20280] close(3)                    = 0
[pid 20280] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20280] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20280] write(4, "78", 2)           = 2
[pid 20280] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20280] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20280] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20280] exit_group(0)               = ?
[pid 20280] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20280, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20281 attached
, child_tidptr=0x555555af35d0) = 20281
[pid 20281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20281] setpgid(0, 0)               = 0
[pid 20281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20281] write(3, "1000", 4)         = 4
[pid 20281] close(3)                    = 0
[pid 20281] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20281] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20281] write(4, "78", 2)           = 2
[pid 20281] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20281] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20281] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20281] exit_group(0)               = ?
[pid 20281] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20281, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20282 attached
, child_tidptr=0x555555af35d0) = 20282
[pid 20282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20282] setpgid(0, 0)               = 0
[pid 20282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20282] write(3, "1000", 4)         = 4
[pid 20282] close(3)                    = 0
[pid 20282] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20282] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20282] write(4, "78", 2)           = 2
[pid 20282] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20282] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20282] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20282] exit_group(0)               = ?
[pid 20282] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20282, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20283
./strace-static-x86_64: Process 20283 attached
[pid 20283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20283] setpgid(0, 0)               = 0
[pid 20283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20283] write(3, "1000", 4)         = 4
[pid 20283] close(3)                    = 0
[pid 20283] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20283] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20283] write(4, "78", 2)           = 2
[pid 20283] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20283] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20283] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20283] exit_group(0)               = ?
[pid 20283] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20283, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20284 attached
, child_tidptr=0x555555af35d0) = 20284
[pid 20284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20284] setpgid(0, 0)               = 0
[pid 20284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20284] write(3, "1000", 4)         = 4
[pid 20284] close(3)                    = 0
[pid 20284] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20284] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20284] write(4, "78", 2)           = 2
[pid 20284] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20284] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20284] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20284] exit_group(0)               = ?
[pid 20284] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20284, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20285 attached
, child_tidptr=0x555555af35d0) = 20285
[pid 20285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20285] setpgid(0, 0)               = 0
[pid 20285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20285] write(3, "1000", 4)         = 4
[pid 20285] close(3)                    = 0
[pid 20285] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20285] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20285] write(4, "78", 2)           = 2
[pid 20285] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20285] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20285] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20285] exit_group(0)               = ?
[pid 20285] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20285, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20286 attached
, child_tidptr=0x555555af35d0) = 20286
[pid 20286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20286] setpgid(0, 0)               = 0
[pid 20286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20286] write(3, "1000", 4)         = 4
[pid 20286] close(3)                    = 0
[pid 20286] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20286] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20286] write(4, "78", 2)           = 2
[pid 20286] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20286] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20286] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20286] exit_group(0)               = ?
[pid 20286] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20286, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20287 attached
, child_tidptr=0x555555af35d0) = 20287
[pid 20287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20287] setpgid(0, 0)               = 0
[pid 20287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20287] write(3, "1000", 4)         = 4
[pid 20287] close(3)                    = 0
[pid 20287] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20287] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20287] write(4, "78", 2)           = 2
[pid 20287] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20287] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20287] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20287] exit_group(0)               = ?
[pid 20287] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20287, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20288 attached
, child_tidptr=0x555555af35d0) = 20288
[pid 20288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20288] setpgid(0, 0)               = 0
[pid 20288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20288] write(3, "1000", 4)         = 4
[pid 20288] close(3)                    = 0
[pid 20288] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20288] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20288] write(4, "78", 2)           = 2
[pid 20288] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20288] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20288] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20288] exit_group(0)               = ?
[pid 20288] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20288, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20289 attached
, child_tidptr=0x555555af35d0) = 20289
[pid 20289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20289] setpgid(0, 0)               = 0
[pid 20289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20289] write(3, "1000", 4)         = 4
[pid 20289] close(3)                    = 0
[pid 20289] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20289] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20289] write(4, "78", 2)           = 2
[pid 20289] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20289] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20289] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20289] exit_group(0)               = ?
[pid 20289] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20289, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20290 attached
, child_tidptr=0x555555af35d0) = 20290
[pid 20290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20290] setpgid(0, 0)               = 0
[pid 20290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20290] write(3, "1000", 4)         = 4
[pid 20290] close(3)                    = 0
[pid 20290] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20290] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20290] write(4, "78", 2)           = 2
[pid 20290] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20290] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20290] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20290] exit_group(0)               = ?
[pid 20290] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20290, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20291
./strace-static-x86_64: Process 20291 attached
[pid 20291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20291] setpgid(0, 0)               = 0
[pid 20291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20291] write(3, "1000", 4)         = 4
[pid 20291] close(3)                    = 0
[pid 20291] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20291] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20291] write(4, "78", 2)           = 2
[pid 20291] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20291] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20291] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20291] exit_group(0)               = ?
[pid 20291] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20291, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20292 attached
, child_tidptr=0x555555af35d0) = 20292
[pid 20292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20292] setpgid(0, 0)               = 0
[pid 20292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20292] write(3, "1000", 4)         = 4
[pid 20292] close(3)                    = 0
[pid 20292] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20292] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20292] write(4, "78", 2)           = 2
[pid 20292] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20292] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20292] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20292] exit_group(0)               = ?
[pid 20292] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20292, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20293 attached
, child_tidptr=0x555555af35d0) = 20293
[pid 20293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20293] setpgid(0, 0)               = 0
[pid 20293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20293] write(3, "1000", 4)         = 4
[pid 20293] close(3)                    = 0
[pid 20293] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20293] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20293] write(4, "78", 2)           = 2
[pid 20293] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20293] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20293] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20293] exit_group(0)               = ?
[pid 20293] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20293, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20294 attached
, child_tidptr=0x555555af35d0) = 20294
[pid 20294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20294] setpgid(0, 0)               = 0
[pid 20294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20294] write(3, "1000", 4)         = 4
[pid 20294] close(3)                    = 0
[pid 20294] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20294] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20294] write(4, "78", 2)           = 2
[pid 20294] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20294] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20294] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20294] exit_group(0)               = ?
[pid 20294] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20294, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20295
./strace-static-x86_64: Process 20295 attached
[pid 20295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20295] setpgid(0, 0)               = 0
[pid 20295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20295] write(3, "1000", 4)         = 4
[pid 20295] close(3)                    = 0
[pid 20295] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20295] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20295] write(4, "78", 2)           = 2
[pid 20295] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20295] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20295] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20295] exit_group(0)               = ?
[pid 20295] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20295, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20296
./strace-static-x86_64: Process 20296 attached
[pid 20296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20296] setpgid(0, 0)               = 0
[pid 20296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20296] write(3, "1000", 4)         = 4
[pid 20296] close(3)                    = 0
[pid 20296] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20296] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20296] write(4, "78", 2)           = 2
[pid 20296] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20296] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20296] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20296] exit_group(0)               = ?
[pid 20296] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20296, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20297 attached
, child_tidptr=0x555555af35d0) = 20297
[pid 20297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20297] setpgid(0, 0)               = 0
[pid 20297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20297] write(3, "1000", 4)         = 4
[pid 20297] close(3)                    = 0
[pid 20297] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20297] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20297] write(4, "78", 2)           = 2
[pid 20297] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20297] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20297] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20297] exit_group(0)               = ?
[pid 20297] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20297, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20298 attached
, child_tidptr=0x555555af35d0) = 20298
[pid 20298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20298] setpgid(0, 0)               = 0
[pid 20298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20298] write(3, "1000", 4)         = 4
[pid 20298] close(3)                    = 0
[pid 20298] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20298] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20298] write(4, "78", 2)           = 2
[pid 20298] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20298] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20298] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20298] exit_group(0)               = ?
[pid 20298] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20298, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20299 attached
, child_tidptr=0x555555af35d0) = 20299
[pid 20299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20299] setpgid(0, 0)               = 0
[pid 20299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20299] write(3, "1000", 4)         = 4
[pid 20299] close(3)                    = 0
[pid 20299] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20299] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20299] write(4, "78", 2)           = 2
[pid 20299] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20299] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20299] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20299] exit_group(0)               = ?
[pid 20299] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20299, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20300
./strace-static-x86_64: Process 20300 attached
[pid 20300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20300] setpgid(0, 0)               = 0
[pid 20300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20300] write(3, "1000", 4)         = 4
[pid 20300] close(3)                    = 0
[pid 20300] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20300] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20300] write(4, "78", 2)           = 2
[pid 20300] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20300] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20300] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20300] exit_group(0)               = ?
[pid 20300] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20300, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20301
./strace-static-x86_64: Process 20301 attached
[pid 20301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20301] setpgid(0, 0)               = 0
[pid 20301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20301] write(3, "1000", 4)         = 4
[pid 20301] close(3)                    = 0
[pid 20301] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20301] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20301] write(4, "78", 2)           = 2
[pid 20301] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20301] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20301] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20301] exit_group(0)               = ?
[pid 20301] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20301, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20302
./strace-static-x86_64: Process 20302 attached
[pid 20302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20302] setpgid(0, 0)               = 0
[pid 20302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20302] write(3, "1000", 4)         = 4
[pid 20302] close(3)                    = 0
[pid 20302] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20302] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20302] write(4, "78", 2)           = 2
[pid 20302] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20302] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20302] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20302] exit_group(0)               = ?
[pid 20302] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20302, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20303
./strace-static-x86_64: Process 20303 attached
[pid 20303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20303] setpgid(0, 0)               = 0
[pid 20303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20303] write(3, "1000", 4)         = 4
[pid 20303] close(3)                    = 0
[pid 20303] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20303] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20303] write(4, "78", 2)           = 2
[pid 20303] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20303] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20303] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20303] exit_group(0)               = ?
[pid 20303] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20303, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20304 attached
, child_tidptr=0x555555af35d0) = 20304
[pid 20304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20304] setpgid(0, 0)               = 0
[pid 20304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20304] write(3, "1000", 4)         = 4
[pid 20304] close(3)                    = 0
[pid 20304] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20304] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20304] write(4, "78", 2)           = 2
[pid 20304] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20304] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20304] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20304] exit_group(0)               = ?
[pid 20304] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20304, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20305 attached
, child_tidptr=0x555555af35d0) = 20305
[pid 20305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20305] setpgid(0, 0)               = 0
[pid 20305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20305] write(3, "1000", 4)         = 4
[pid 20305] close(3)                    = 0
[pid 20305] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20305] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20305] write(4, "78", 2)           = 2
[pid 20305] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20305] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20305] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20305] exit_group(0)               = ?
[pid 20305] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20305, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20306 attached
, child_tidptr=0x555555af35d0) = 20306
[pid 20306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20306] setpgid(0, 0)               = 0
[pid 20306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20306] write(3, "1000", 4)         = 4
[pid 20306] close(3)                    = 0
[pid 20306] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20306] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20306] write(4, "78", 2)           = 2
[pid 20306] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20306] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20306] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20306] exit_group(0)               = ?
[pid 20306] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20306, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20307 attached
, child_tidptr=0x555555af35d0) = 20307
[pid 20307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20307] setpgid(0, 0)               = 0
[pid 20307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20307] write(3, "1000", 4)         = 4
[pid 20307] close(3)                    = 0
[pid 20307] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20307] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20307] write(4, "78", 2)           = 2
[pid 20307] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20307] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20307] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20307] exit_group(0)               = ?
[pid 20307] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20307, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20308 attached
, child_tidptr=0x555555af35d0) = 20308
[pid 20308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20308] setpgid(0, 0)               = 0
[pid 20308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20308] write(3, "1000", 4)         = 4
[pid 20308] close(3)                    = 0
[pid 20308] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20308] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20308] write(4, "78", 2)           = 2
[pid 20308] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20308] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20308] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20308] exit_group(0)               = ?
[pid 20308] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20308, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20309 attached
, child_tidptr=0x555555af35d0) = 20309
[pid 20309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20309] setpgid(0, 0)               = 0
[pid 20309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20309] write(3, "1000", 4)         = 4
[pid 20309] close(3)                    = 0
[pid 20309] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20309] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20309] write(4, "78", 2)           = 2
[pid 20309] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20309] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20309] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20309] exit_group(0)               = ?
[pid 20309] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20309, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20310
./strace-static-x86_64: Process 20310 attached
[pid 20310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20310] setpgid(0, 0)               = 0
[pid 20310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20310] write(3, "1000", 4)         = 4
[pid 20310] close(3)                    = 0
[pid 20310] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20310] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20310] write(4, "78", 2)           = 2
[pid 20310] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20310] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20310] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20310] exit_group(0)               = ?
[pid 20310] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20310, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20311 attached
, child_tidptr=0x555555af35d0) = 20311
[pid 20311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20311] setpgid(0, 0)               = 0
[pid 20311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20311] write(3, "1000", 4)         = 4
[pid 20311] close(3)                    = 0
[pid 20311] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20311] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20311] write(4, "78", 2)           = 2
[pid 20311] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20311] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20311] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20311] exit_group(0)               = ?
[pid 20311] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20311, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20312 attached
, child_tidptr=0x555555af35d0) = 20312
[pid 20312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20312] setpgid(0, 0)               = 0
[pid 20312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20312] write(3, "1000", 4)         = 4
[pid 20312] close(3)                    = 0
[pid 20312] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20312] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20312] write(4, "78", 2)           = 2
[pid 20312] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20312] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20312] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20312] exit_group(0)               = ?
[pid 20312] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20312, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20313 attached
, child_tidptr=0x555555af35d0) = 20313
[pid 20313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20313] setpgid(0, 0)               = 0
[pid 20313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20313] write(3, "1000", 4)         = 4
[pid 20313] close(3)                    = 0
[pid 20313] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20313] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20313] write(4, "78", 2)           = 2
[pid 20313] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20313] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20313] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20313] exit_group(0)               = ?
[pid 20313] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20313, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20314 attached
, child_tidptr=0x555555af35d0) = 20314
[pid 20314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20314] setpgid(0, 0)               = 0
[pid 20314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20314] write(3, "1000", 4)         = 4
[pid 20314] close(3)                    = 0
[pid 20314] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20314] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20314] write(4, "78", 2)           = 2
[pid 20314] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20314] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20314] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20314] exit_group(0)               = ?
[pid 20314] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20314, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20315 attached
, child_tidptr=0x555555af35d0) = 20315
[pid 20315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20315] setpgid(0, 0)               = 0
[pid 20315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20315] write(3, "1000", 4)         = 4
[pid 20315] close(3)                    = 0
[pid 20315] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20315] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20315] write(4, "78", 2)           = 2
[pid 20315] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20315] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20315] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20315] exit_group(0)               = ?
[pid 20315] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20315, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20316 attached
, child_tidptr=0x555555af35d0) = 20316
[pid 20316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20316] setpgid(0, 0)               = 0
[pid 20316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20316] write(3, "1000", 4)         = 4
[pid 20316] close(3)                    = 0
[pid 20316] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20316] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20316] write(4, "78", 2)           = 2
[pid 20316] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20316] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20316] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20316] exit_group(0)               = ?
[pid 20316] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20316, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20317
./strace-static-x86_64: Process 20317 attached
[pid 20317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20317] setpgid(0, 0)               = 0
[pid 20317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20317] write(3, "1000", 4)         = 4
[pid 20317] close(3)                    = 0
[pid 20317] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20317] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20317] write(4, "78", 2)           = 2
[pid 20317] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20317] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20317] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20317] exit_group(0)               = ?
[pid 20317] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20317, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20318
./strace-static-x86_64: Process 20318 attached
[pid 20318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20318] setpgid(0, 0)               = 0
[pid 20318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20318] write(3, "1000", 4)         = 4
[pid 20318] close(3)                    = 0
[pid 20318] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20318] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20318] write(4, "78", 2)           = 2
[pid 20318] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20318] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20318] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20318] exit_group(0)               = ?
[pid 20318] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20318, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20319 attached
, child_tidptr=0x555555af35d0) = 20319
[pid 20319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20319] setpgid(0, 0)               = 0
[pid 20319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20319] write(3, "1000", 4)         = 4
[pid 20319] close(3)                    = 0
[pid 20319] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20319] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20319] write(4, "78", 2)           = 2
[pid 20319] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20319] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20319] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20319] exit_group(0)               = ?
[pid 20319] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20319, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20320
./strace-static-x86_64: Process 20320 attached
[pid 20320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20320] setpgid(0, 0)               = 0
[pid 20320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20320] write(3, "1000", 4)         = 4
[pid 20320] close(3)                    = 0
[pid 20320] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20320] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20320] write(4, "78", 2)           = 2
[pid 20320] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20320] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20320] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20320] exit_group(0)               = ?
[pid 20320] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20320, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20321 attached
, child_tidptr=0x555555af35d0) = 20321
[pid 20321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20321] setpgid(0, 0)               = 0
[pid 20321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20321] write(3, "1000", 4)         = 4
[pid 20321] close(3)                    = 0
[pid 20321] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20321] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20321] write(4, "78", 2)           = 2
[pid 20321] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20321] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20321] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20321] exit_group(0)               = ?
[pid 20321] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20321, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20322 attached
, child_tidptr=0x555555af35d0) = 20322
[pid 20322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20322] setpgid(0, 0)               = 0
[pid 20322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20322] write(3, "1000", 4)         = 4
[pid 20322] close(3)                    = 0
[pid 20322] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20322] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20322] write(4, "78", 2)           = 2
[pid 20322] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20322] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20322] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20322] exit_group(0)               = ?
[pid 20322] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20322, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20323 attached
, child_tidptr=0x555555af35d0) = 20323
[pid 20323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20323] setpgid(0, 0)               = 0
[pid 20323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20323] write(3, "1000", 4)         = 4
[pid 20323] close(3)                    = 0
[pid 20323] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20323] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20323] write(4, "78", 2)           = 2
[pid 20323] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20323] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20323] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20323] exit_group(0)               = ?
[pid 20323] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20323, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20324 attached
, child_tidptr=0x555555af35d0) = 20324
[pid 20324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20324] setpgid(0, 0)               = 0
[pid 20324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20324] write(3, "1000", 4)         = 4
[pid 20324] close(3)                    = 0
[pid 20324] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20324] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20324] write(4, "78", 2)           = 2
[pid 20324] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20324] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20324] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20324] exit_group(0)               = ?
[pid 20324] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20324, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20325 attached
, child_tidptr=0x555555af35d0) = 20325
[pid 20325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20325] setpgid(0, 0)               = 0
[pid 20325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20325] write(3, "1000", 4)         = 4
[pid 20325] close(3)                    = 0
[pid 20325] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20325] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20325] write(4, "78", 2)           = 2
[pid 20325] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20325] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20325] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20325] exit_group(0)               = ?
[pid 20325] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20325, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20326 attached
, child_tidptr=0x555555af35d0) = 20326
[pid 20326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20326] setpgid(0, 0)               = 0
[pid 20326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20326] write(3, "1000", 4)         = 4
[pid 20326] close(3)                    = 0
[pid 20326] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20326] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20326] write(4, "78", 2)           = 2
[pid 20326] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20326] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20326] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20326] exit_group(0)               = ?
[pid 20326] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20326, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20327
./strace-static-x86_64: Process 20327 attached
[pid 20327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20327] setpgid(0, 0)               = 0
[pid 20327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20327] write(3, "1000", 4)         = 4
[pid 20327] close(3)                    = 0
[pid 20327] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20327] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20327] write(4, "78", 2)           = 2
[pid 20327] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20327] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20327] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20327] exit_group(0)               = ?
[pid 20327] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20327, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20328 attached
, child_tidptr=0x555555af35d0) = 20328
[pid 20328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20328] setpgid(0, 0)               = 0
[pid 20328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20328] write(3, "1000", 4)         = 4
[pid 20328] close(3)                    = 0
[pid 20328] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20328] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20328] write(4, "78", 2)           = 2
[pid 20328] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20328] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20328] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20328] exit_group(0)               = ?
[pid 20328] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20328, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20329 attached
, child_tidptr=0x555555af35d0) = 20329
[pid 20329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20329] setpgid(0, 0)               = 0
[pid 20329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20329] write(3, "1000", 4)         = 4
[pid 20329] close(3)                    = 0
[pid 20329] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20329] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20329] write(4, "78", 2)           = 2
[pid 20329] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20329] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20329] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20329] exit_group(0)               = ?
[pid 20329] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20329, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20330 attached
, child_tidptr=0x555555af35d0) = 20330
[pid 20330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20330] setpgid(0, 0)               = 0
[pid 20330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20330] write(3, "1000", 4)         = 4
[pid 20330] close(3)                    = 0
[pid 20330] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20330] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20330] write(4, "78", 2)           = 2
[pid 20330] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20330] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20330] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20330] exit_group(0)               = ?
[pid 20330] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20330, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20331 attached
, child_tidptr=0x555555af35d0) = 20331
[pid 20331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20331] setpgid(0, 0)               = 0
[pid 20331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20331] write(3, "1000", 4)         = 4
[pid 20331] close(3)                    = 0
[pid 20331] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20331] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20331] write(4, "78", 2)           = 2
[pid 20331] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20331] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20331] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20331] exit_group(0)               = ?
[pid 20331] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20331, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20332
./strace-static-x86_64: Process 20332 attached
[pid 20332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20332] setpgid(0, 0)               = 0
[pid 20332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20332] write(3, "1000", 4)         = 4
[pid 20332] close(3)                    = 0
[pid 20332] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20332] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20332] write(4, "78", 2)           = 2
[pid 20332] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20332] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20332] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20332] exit_group(0)               = ?
[pid 20332] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20332, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20333
./strace-static-x86_64: Process 20333 attached
[pid 20333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20333] setpgid(0, 0)               = 0
[pid 20333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20333] write(3, "1000", 4)         = 4
[pid 20333] close(3)                    = 0
[pid 20333] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20333] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20333] write(4, "78", 2)           = 2
[pid 20333] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20333] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20333] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20333] exit_group(0)               = ?
[pid 20333] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20333, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20334 attached
, child_tidptr=0x555555af35d0) = 20334
[pid 20334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20334] setpgid(0, 0)               = 0
[pid 20334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20334] write(3, "1000", 4)         = 4
[pid 20334] close(3)                    = 0
[pid 20334] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20334] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20334] write(4, "78", 2)           = 2
[pid 20334] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20334] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20334] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20334] exit_group(0)               = ?
[pid 20334] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20334, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20335
./strace-static-x86_64: Process 20335 attached
[pid 20335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20335] setpgid(0, 0)               = 0
[pid 20335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20335] write(3, "1000", 4)         = 4
[pid 20335] close(3)                    = 0
[pid 20335] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20335] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20335] write(4, "78", 2)           = 2
[pid 20335] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20335] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20335] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20335] exit_group(0)               = ?
[pid 20335] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20335, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20336 attached
, child_tidptr=0x555555af35d0) = 20336
[pid 20336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20336] setpgid(0, 0)               = 0
[pid 20336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20336] write(3, "1000", 4)         = 4
[pid 20336] close(3)                    = 0
[pid 20336] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20336] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20336] write(4, "78", 2)           = 2
[pid 20336] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20336] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20336] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20336] exit_group(0)               = ?
[pid 20336] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20336, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20337 attached
, child_tidptr=0x555555af35d0) = 20337
[pid 20337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20337] setpgid(0, 0)               = 0
[pid 20337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20337] write(3, "1000", 4)         = 4
[pid 20337] close(3)                    = 0
[pid 20337] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20337] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20337] write(4, "78", 2)           = 2
[pid 20337] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20337] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20337] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20337] exit_group(0)               = ?
[pid 20337] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20337, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20338 attached
, child_tidptr=0x555555af35d0) = 20338
[pid 20338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20338] setpgid(0, 0)               = 0
[pid 20338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20338] write(3, "1000", 4)         = 4
[pid 20338] close(3)                    = 0
[pid 20338] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20338] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20338] write(4, "78", 2)           = 2
[pid 20338] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20338] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20338] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20338] exit_group(0)               = ?
[pid 20338] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20338, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20339 attached
, child_tidptr=0x555555af35d0) = 20339
[pid 20339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20339] setpgid(0, 0)               = 0
[pid 20339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20339] write(3, "1000", 4)         = 4
[pid 20339] close(3)                    = 0
[pid 20339] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20339] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20339] write(4, "78", 2)           = 2
[pid 20339] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20339] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20339] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20339] exit_group(0)               = ?
[pid 20339] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20339, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20340
./strace-static-x86_64: Process 20340 attached
[pid 20340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20340] setpgid(0, 0)               = 0
[pid 20340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20340] write(3, "1000", 4)         = 4
[pid 20340] close(3)                    = 0
[pid 20340] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20340] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20340] write(4, "78", 2)           = 2
[pid 20340] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20340] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20340] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20340] exit_group(0)               = ?
[pid 20340] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20340, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20341
./strace-static-x86_64: Process 20341 attached
[pid 20341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20341] setpgid(0, 0)               = 0
[pid 20341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20341] write(3, "1000", 4)         = 4
[pid 20341] close(3)                    = 0
[pid 20341] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20341] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20341] write(4, "78", 2)           = 2
[pid 20341] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20341] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20341] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20341] exit_group(0)               = ?
[pid 20341] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20341, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20342
./strace-static-x86_64: Process 20342 attached
[pid 20342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20342] setpgid(0, 0)               = 0
[pid 20342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20342] write(3, "1000", 4)         = 4
[pid 20342] close(3)                    = 0
[pid 20342] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20342] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20342] write(4, "78", 2)           = 2
[pid 20342] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20342] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20342] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20342] exit_group(0)               = ?
[pid 20342] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20342, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20343
./strace-static-x86_64: Process 20343 attached
[pid 20343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20343] setpgid(0, 0)               = 0
[pid 20343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20343] write(3, "1000", 4)         = 4
[pid 20343] close(3)                    = 0
[pid 20343] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20343] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20343] write(4, "78", 2)           = 2
[pid 20343] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20343] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20343] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20343] exit_group(0)               = ?
[pid 20343] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20343, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20344 attached
, child_tidptr=0x555555af35d0) = 20344
[pid 20344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20344] setpgid(0, 0)               = 0
[pid 20344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20344] write(3, "1000", 4)         = 4
[pid 20344] close(3)                    = 0
[pid 20344] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20344] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20344] write(4, "78", 2)           = 2
[pid 20344] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20344] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20344] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20344] exit_group(0)               = ?
[pid 20344] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20344, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20345 attached
, child_tidptr=0x555555af35d0) = 20345
[pid 20345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20345] setpgid(0, 0)               = 0
[pid 20345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20345] write(3, "1000", 4)         = 4
[pid 20345] close(3)                    = 0
[pid 20345] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20345] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20345] write(4, "78", 2)           = 2
[pid 20345] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20345] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20345] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20345] exit_group(0)               = ?
[pid 20345] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20345, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20346 attached
, child_tidptr=0x555555af35d0) = 20346
[pid 20346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20346] setpgid(0, 0)               = 0
[pid 20346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20346] write(3, "1000", 4)         = 4
[pid 20346] close(3)                    = 0
[pid 20346] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20346] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20346] write(4, "78", 2)           = 2
[pid 20346] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20346] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20346] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20346] exit_group(0)               = ?
[pid 20346] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20346, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20347 attached
, child_tidptr=0x555555af35d0) = 20347
[pid 20347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20347] setpgid(0, 0)               = 0
[pid 20347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20347] write(3, "1000", 4)         = 4
[pid 20347] close(3)                    = 0
[pid 20347] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20347] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20347] write(4, "78", 2)           = 2
[pid 20347] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20347] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20347] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20347] exit_group(0)               = ?
[pid 20347] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20347, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20348 attached
, child_tidptr=0x555555af35d0) = 20348
[pid 20348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20348] setpgid(0, 0)               = 0
[pid 20348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20348] write(3, "1000", 4)         = 4
[pid 20348] close(3)                    = 0
[pid 20348] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20348] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20348] write(4, "78", 2)           = 2
[pid 20348] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20348] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20348] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20348] exit_group(0)               = ?
[pid 20348] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20348, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20349 attached
, child_tidptr=0x555555af35d0) = 20349
[pid 20349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20349] setpgid(0, 0)               = 0
[pid 20349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20349] write(3, "1000", 4)         = 4
[pid 20349] close(3)                    = 0
[pid 20349] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20349] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20349] write(4, "78", 2)           = 2
[pid 20349] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20349] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20349] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20349] exit_group(0)               = ?
[pid 20349] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20349, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20350
./strace-static-x86_64: Process 20350 attached
[pid 20350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20350] setpgid(0, 0)               = 0
[pid 20350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20350] write(3, "1000", 4)         = 4
[pid 20350] close(3)                    = 0
[pid 20350] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20350] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20350] write(4, "78", 2)           = 2
[pid 20350] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20350] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20350] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20350] exit_group(0)               = ?
[pid 20350] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20350, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20351 attached
, child_tidptr=0x555555af35d0) = 20351
[pid 20351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20351] setpgid(0, 0)               = 0
[pid 20351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20351] write(3, "1000", 4)         = 4
[pid 20351] close(3)                    = 0
[pid 20351] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20351] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20351] write(4, "78", 2)           = 2
[pid 20351] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20351] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20351] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20351] exit_group(0)               = ?
[pid 20351] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20351, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20352 attached
, child_tidptr=0x555555af35d0) = 20352
[pid 20352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20352] setpgid(0, 0)               = 0
[pid 20352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20352] write(3, "1000", 4)         = 4
[pid 20352] close(3)                    = 0
[pid 20352] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20352] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20352] write(4, "78", 2)           = 2
[pid 20352] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20352] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20352] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20352] exit_group(0)               = ?
[pid 20352] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20352, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20353
./strace-static-x86_64: Process 20353 attached
[pid 20353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20353] setpgid(0, 0)               = 0
[pid 20353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20353] write(3, "1000", 4)         = 4
[pid 20353] close(3)                    = 0
[pid 20353] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20353] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20353] write(4, "78", 2)           = 2
[pid 20353] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20353] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20353] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20353] exit_group(0)               = ?
[pid 20353] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20353, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20354
./strace-static-x86_64: Process 20354 attached
[pid 20354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20354] setpgid(0, 0)               = 0
[pid 20354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20354] write(3, "1000", 4)         = 4
[pid 20354] close(3)                    = 0
[pid 20354] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20354] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20354] write(4, "78", 2)           = 2
[pid 20354] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20354] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20354] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20354] exit_group(0)               = ?
[pid 20354] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20354, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20355 attached
, child_tidptr=0x555555af35d0) = 20355
[pid 20355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20355] setpgid(0, 0)               = 0
[pid 20355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20355] write(3, "1000", 4)         = 4
[pid 20355] close(3)                    = 0
[pid 20355] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20355] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20355] write(4, "78", 2)           = 2
[pid 20355] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20355] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20355] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20355] exit_group(0)               = ?
[pid 20355] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20355, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20356
./strace-static-x86_64: Process 20356 attached
[pid 20356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20356] setpgid(0, 0)               = 0
[pid 20356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20356] write(3, "1000", 4)         = 4
[pid 20356] close(3)                    = 0
[pid 20356] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20356] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20356] write(4, "78", 2)           = 2
[pid 20356] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20356] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20356] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20356] exit_group(0)               = ?
[pid 20356] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20356, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20357 attached
, child_tidptr=0x555555af35d0) = 20357
[pid 20357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20357] setpgid(0, 0)               = 0
[pid 20357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20357] write(3, "1000", 4)         = 4
[pid 20357] close(3)                    = 0
[pid 20357] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20357] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20357] write(4, "78", 2)           = 2
[pid 20357] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20357] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20357] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20357] exit_group(0)               = ?
[pid 20357] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20357, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20358 attached
, child_tidptr=0x555555af35d0) = 20358
[pid 20358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20358] setpgid(0, 0)               = 0
[pid 20358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20358] write(3, "1000", 4)         = 4
[pid 20358] close(3)                    = 0
[pid 20358] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20358] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20358] write(4, "78", 2)           = 2
[pid 20358] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20358] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20358] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20358] exit_group(0)               = ?
[pid 20358] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20358, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20359 attached
, child_tidptr=0x555555af35d0) = 20359
[pid 20359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20359] setpgid(0, 0)               = 0
[pid 20359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20359] write(3, "1000", 4)         = 4
[pid 20359] close(3)                    = 0
[pid 20359] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20359] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20359] write(4, "78", 2)           = 2
[pid 20359] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20359] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20359] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20359] exit_group(0)               = ?
[pid 20359] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20359, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20360
./strace-static-x86_64: Process 20360 attached
[pid 20360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20360] setpgid(0, 0)               = 0
[pid 20360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20360] write(3, "1000", 4)         = 4
[pid 20360] close(3)                    = 0
[pid 20360] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20360] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20360] write(4, "78", 2)           = 2
[pid 20360] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20360] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20360] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20360] exit_group(0)               = ?
[pid 20360] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20360, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20361 attached
, child_tidptr=0x555555af35d0) = 20361
[pid 20361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20361] setpgid(0, 0)               = 0
[pid 20361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20361] write(3, "1000", 4)         = 4
[pid 20361] close(3)                    = 0
[pid 20361] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20361] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20361] write(4, "78", 2)           = 2
[pid 20361] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20361] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20361] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20361] exit_group(0)               = ?
[pid 20361] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20361, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20362
./strace-static-x86_64: Process 20362 attached
[pid 20362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20362] setpgid(0, 0)               = 0
[pid 20362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20362] write(3, "1000", 4)         = 4
[pid 20362] close(3)                    = 0
[pid 20362] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20362] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20362] write(4, "78", 2)           = 2
[pid 20362] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20362] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20362] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20362] exit_group(0)               = ?
[pid 20362] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20362, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20363
./strace-static-x86_64: Process 20363 attached
[pid 20363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20363] setpgid(0, 0)               = 0
[pid 20363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20363] write(3, "1000", 4)         = 4
[pid 20363] close(3)                    = 0
[pid 20363] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20363] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20363] write(4, "78", 2)           = 2
[pid 20363] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20363] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20363] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20363] exit_group(0)               = ?
[pid 20363] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20363, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20364 attached
, child_tidptr=0x555555af35d0) = 20364
[pid 20364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20364] setpgid(0, 0)               = 0
[pid 20364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20364] write(3, "1000", 4)         = 4
[pid 20364] close(3)                    = 0
[pid 20364] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20364] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20364] write(4, "78", 2)           = 2
[pid 20364] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20364] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20364] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20364] exit_group(0)               = ?
[pid 20364] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20364, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20365 attached
, child_tidptr=0x555555af35d0) = 20365
[pid 20365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20365] setpgid(0, 0)               = 0
[pid 20365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20365] write(3, "1000", 4)         = 4
[pid 20365] close(3)                    = 0
[pid 20365] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20365] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20365] write(4, "78", 2)           = 2
[pid 20365] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20365] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20365] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20365] exit_group(0)               = ?
[pid 20365] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20365, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20366 attached
, child_tidptr=0x555555af35d0) = 20366
[pid 20366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20366] setpgid(0, 0)               = 0
[pid 20366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20366] write(3, "1000", 4)         = 4
[pid 20366] close(3)                    = 0
[pid 20366] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20366] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20366] write(4, "78", 2)           = 2
[pid 20366] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20366] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20366] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20366] exit_group(0)               = ?
[pid 20366] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20366, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20367 attached
, child_tidptr=0x555555af35d0) = 20367
[pid 20367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20367] setpgid(0, 0)               = 0
[pid 20367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20367] write(3, "1000", 4)         = 4
[pid 20367] close(3)                    = 0
[pid 20367] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20367] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20367] write(4, "78", 2)           = 2
[pid 20367] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20367] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20367] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20367] exit_group(0)               = ?
[pid 20367] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20367, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20368 attached
, child_tidptr=0x555555af35d0) = 20368
[pid 20368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20368] setpgid(0, 0)               = 0
[pid 20368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20368] write(3, "1000", 4)         = 4
[pid 20368] close(3)                    = 0
[pid 20368] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20368] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20368] write(4, "78", 2)           = 2
[pid 20368] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20368] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20368] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20368] exit_group(0)               = ?
[pid 20368] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20368, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20369 attached
, child_tidptr=0x555555af35d0) = 20369
[pid 20369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20369] setpgid(0, 0)               = 0
[pid 20369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20369] write(3, "1000", 4)         = 4
[pid 20369] close(3)                    = 0
[pid 20369] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20369] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20369] write(4, "78", 2)           = 2
[pid 20369] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20369] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20369] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20369] exit_group(0)               = ?
[pid 20369] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20369, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20370 attached
, child_tidptr=0x555555af35d0) = 20370
[pid 20370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20370] setpgid(0, 0)               = 0
[pid 20370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20370] write(3, "1000", 4)         = 4
[pid 20370] close(3)                    = 0
[pid 20370] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20370] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20370] write(4, "78", 2)           = 2
[pid 20370] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20370] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20370] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20370] exit_group(0)               = ?
[pid 20370] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20370, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20371 attached
, child_tidptr=0x555555af35d0) = 20371
[pid 20371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20371] setpgid(0, 0)               = 0
[pid 20371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20371] write(3, "1000", 4)         = 4
[pid 20371] close(3)                    = 0
[pid 20371] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20371] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20371] write(4, "78", 2)           = 2
[pid 20371] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20371] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20371] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20371] exit_group(0)               = ?
[pid 20371] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20371, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20372
./strace-static-x86_64: Process 20372 attached
[pid 20372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20372] setpgid(0, 0)               = 0
[pid 20372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20372] write(3, "1000", 4)         = 4
[pid 20372] close(3)                    = 0
[pid 20372] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20372] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20372] write(4, "78", 2)           = 2
[pid 20372] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20372] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20372] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20372] exit_group(0)               = ?
[pid 20372] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20372, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20373
./strace-static-x86_64: Process 20373 attached
[pid 20373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20373] setpgid(0, 0)               = 0
[pid 20373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20373] write(3, "1000", 4)         = 4
[pid 20373] close(3)                    = 0
[pid 20373] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20373] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20373] write(4, "78", 2)           = 2
[pid 20373] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20373] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20373] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20373] exit_group(0)               = ?
[pid 20373] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20373, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20374 attached
, child_tidptr=0x555555af35d0) = 20374
[pid 20374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20374] setpgid(0, 0)               = 0
[pid 20374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20374] write(3, "1000", 4)         = 4
[pid 20374] close(3)                    = 0
[pid 20374] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20374] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20374] write(4, "78", 2)           = 2
[pid 20374] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20374] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20374] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20374] exit_group(0)               = ?
[pid 20374] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20374, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20375 attached
, child_tidptr=0x555555af35d0) = 20375
[pid 20375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20375] setpgid(0, 0)               = 0
[pid 20375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20375] write(3, "1000", 4)         = 4
[pid 20375] close(3)                    = 0
[pid 20375] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20375] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20375] write(4, "78", 2)           = 2
[pid 20375] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20375] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20375] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20375] exit_group(0)               = ?
[pid 20375] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20375, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20376 attached
 <unfinished ...>
[pid 20376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20376] setpgid(0, 0)               = 0
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 20376
[pid 20376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20376] write(3, "1000", 4)         = 4
[pid 20376] close(3)                    = 0
[pid 20376] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20376] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20376] write(4, "78", 2)           = 2
[pid 20376] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20376] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20376] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20376] exit_group(0)               = ?
[pid 20376] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20376, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20377 attached
, child_tidptr=0x555555af35d0) = 20377
[pid 20377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20377] setpgid(0, 0)               = 0
[pid 20377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20377] write(3, "1000", 4)         = 4
[pid 20377] close(3)                    = 0
[pid 20377] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20377] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20377] write(4, "78", 2)           = 2
[pid 20377] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20377] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20377] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20377] exit_group(0)               = ?
[pid 20377] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20377, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20378 attached
, child_tidptr=0x555555af35d0) = 20378
[pid 20378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20378] setpgid(0, 0)               = 0
[pid 20378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20378] write(3, "1000", 4)         = 4
[pid 20378] close(3)                    = 0
[pid 20378] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20378] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20378] write(4, "78", 2)           = 2
[pid 20378] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20378] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20378] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20378] exit_group(0)               = ?
[pid 20378] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20378, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20379 attached
, child_tidptr=0x555555af35d0) = 20379
[pid 20379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20379] setpgid(0, 0)               = 0
[pid 20379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20379] write(3, "1000", 4)         = 4
[pid 20379] close(3)                    = 0
[pid 20379] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20379] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20379] write(4, "78", 2)           = 2
[pid 20379] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20379] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20379] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20379] exit_group(0)               = ?
[pid 20379] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20379, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20380 attached
, child_tidptr=0x555555af35d0) = 20380
[pid 20380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20380] setpgid(0, 0)               = 0
[pid 20380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20380] write(3, "1000", 4)         = 4
[pid 20380] close(3)                    = 0
[pid 20380] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20380] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20380] write(4, "78", 2)           = 2
[pid 20380] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20380] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20380] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20380] exit_group(0)               = ?
[pid 20380] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20380, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20381 attached
, child_tidptr=0x555555af35d0) = 20381
[pid 20381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20381] setpgid(0, 0)               = 0
[pid 20381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20381] write(3, "1000", 4)         = 4
[pid 20381] close(3)                    = 0
[pid 20381] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20381] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20381] write(4, "78", 2)           = 2
[pid 20381] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20381] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20381] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20381] exit_group(0)               = ?
[pid 20381] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20381, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20382 attached
, child_tidptr=0x555555af35d0) = 20382
[pid 20382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20382] setpgid(0, 0)               = 0
[pid 20382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20382] write(3, "1000", 4)         = 4
[pid 20382] close(3)                    = 0
[pid 20382] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20382] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20382] write(4, "78", 2)           = 2
[pid 20382] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20382] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20382] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20382] exit_group(0)               = ?
[pid 20382] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20382, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20383 attached
, child_tidptr=0x555555af35d0) = 20383
[pid 20383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20383] setpgid(0, 0)               = 0
[pid 20383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20383] write(3, "1000", 4)         = 4
[pid 20383] close(3)                    = 0
[pid 20383] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20383] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20383] write(4, "78", 2)           = 2
[pid 20383] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20383] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20383] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20383] exit_group(0)               = ?
[pid 20383] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20383, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20384 attached
, child_tidptr=0x555555af35d0) = 20384
[pid 20384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20384] setpgid(0, 0)               = 0
[pid 20384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20384] write(3, "1000", 4)         = 4
[pid 20384] close(3)                    = 0
[pid 20384] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20384] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20384] write(4, "78", 2)           = 2
[pid 20384] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20384] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20384] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20384] exit_group(0)               = ?
[pid 20384] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20384, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20385 attached
, child_tidptr=0x555555af35d0) = 20385
[pid 20385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20385] setpgid(0, 0)               = 0
[pid 20385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20385] write(3, "1000", 4)         = 4
[pid 20385] close(3)                    = 0
[pid 20385] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20385] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20385] write(4, "78", 2)           = 2
[pid 20385] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20385] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20385] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20385] exit_group(0)               = ?
[pid 20385] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20385, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20386 attached
, child_tidptr=0x555555af35d0) = 20386
[pid 20386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20386] setpgid(0, 0)               = 0
[pid 20386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20386] write(3, "1000", 4)         = 4
[pid 20386] close(3)                    = 0
[pid 20386] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20386] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20386] write(4, "78", 2)           = 2
[pid 20386] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20386] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20386] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20386] exit_group(0)               = ?
[pid 20386] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20386, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20387 attached
, child_tidptr=0x555555af35d0) = 20387
[pid 20387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20387] setpgid(0, 0)               = 0
[pid 20387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20387] write(3, "1000", 4)         = 4
[pid 20387] close(3)                    = 0
[pid 20387] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20387] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20387] write(4, "78", 2)           = 2
[pid 20387] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20387] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20387] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20387] exit_group(0)               = ?
[pid 20387] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20387, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20388 attached
, child_tidptr=0x555555af35d0) = 20388
[pid 20388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20388] setpgid(0, 0)               = 0
[pid 20388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20388] write(3, "1000", 4)         = 4
[pid 20388] close(3)                    = 0
[pid 20388] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20388] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20388] write(4, "78", 2)           = 2
[pid 20388] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20388] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20388] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20388] exit_group(0)               = ?
[pid 20388] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20388, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20389 attached
, child_tidptr=0x555555af35d0) = 20389
[pid 20389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20389] setpgid(0, 0)               = 0
[pid 20389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20389] write(3, "1000", 4)         = 4
[pid 20389] close(3)                    = 0
[pid 20389] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20389] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20389] write(4, "78", 2)           = 2
[pid 20389] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20389] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20389] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20389] exit_group(0)               = ?
[pid 20389] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20389, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20390 attached
, child_tidptr=0x555555af35d0) = 20390
[pid 20390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20390] setpgid(0, 0)               = 0
[pid 20390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20390] write(3, "1000", 4)         = 4
[pid 20390] close(3)                    = 0
[pid 20390] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20390] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20390] write(4, "78", 2)           = 2
[pid 20390] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20390] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20390] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20390] exit_group(0)               = ?
[pid 20390] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20390, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20391 attached
, child_tidptr=0x555555af35d0) = 20391
[pid 20391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20391] setpgid(0, 0)               = 0
[pid 20391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20391] write(3, "1000", 4)         = 4
[pid 20391] close(3)                    = 0
[pid 20391] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20391] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20391] write(4, "78", 2)           = 2
[pid 20391] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20391] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20391] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20391] exit_group(0)               = ?
[pid 20391] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20391, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20392
./strace-static-x86_64: Process 20392 attached
[pid 20392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20392] setpgid(0, 0)               = 0
[pid 20392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20392] write(3, "1000", 4)         = 4
[pid 20392] close(3)                    = 0
[pid 20392] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20392] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20392] write(4, "78", 2)           = 2
[pid 20392] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20392] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20392] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20392] exit_group(0)               = ?
[pid 20392] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20392, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20393 attached
, child_tidptr=0x555555af35d0) = 20393
[pid 20393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20393] setpgid(0, 0)               = 0
[pid 20393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20393] write(3, "1000", 4)         = 4
[pid 20393] close(3)                    = 0
[pid 20393] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20393] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20393] write(4, "78", 2)           = 2
[pid 20393] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20393] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20393] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20393] exit_group(0)               = ?
[pid 20393] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20393, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20394
./strace-static-x86_64: Process 20394 attached
[pid 20394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20394] setpgid(0, 0)               = 0
[pid 20394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20394] write(3, "1000", 4)         = 4
[pid 20394] close(3)                    = 0
[pid 20394] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20394] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20394] write(4, "78", 2)           = 2
[pid 20394] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20394] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20394] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20394] exit_group(0)               = ?
[pid 20394] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20394, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20395 attached
, child_tidptr=0x555555af35d0) = 20395
[pid 20395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20395] setpgid(0, 0)               = 0
[pid 20395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20395] write(3, "1000", 4)         = 4
[pid 20395] close(3)                    = 0
[pid 20395] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20395] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20395] write(4, "78", 2)           = 2
[pid 20395] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20395] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20395] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20395] exit_group(0)               = ?
[pid 20395] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20395, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20396
./strace-static-x86_64: Process 20396 attached
[pid 20396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20396] setpgid(0, 0)               = 0
[pid 20396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20396] write(3, "1000", 4)         = 4
[pid 20396] close(3)                    = 0
[pid 20396] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20396] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20396] write(4, "78", 2)           = 2
[pid 20396] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20396] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20396] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20396] exit_group(0)               = ?
[pid 20396] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20396, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20397 attached
, child_tidptr=0x555555af35d0) = 20397
[pid 20397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20397] setpgid(0, 0)               = 0
[pid 20397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20397] write(3, "1000", 4)         = 4
[pid 20397] close(3)                    = 0
[pid 20397] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20397] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20397] write(4, "78", 2)           = 2
[pid 20397] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20397] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20397] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20397] exit_group(0)               = ?
[pid 20397] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20397, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20398
./strace-static-x86_64: Process 20398 attached
[pid 20398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20398] setpgid(0, 0)               = 0
[pid 20398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20398] write(3, "1000", 4)         = 4
[pid 20398] close(3)                    = 0
[pid 20398] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20398] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20398] write(4, "78", 2)           = 2
[pid 20398] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20398] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20398] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20398] exit_group(0)               = ?
[pid 20398] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20398, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20399
./strace-static-x86_64: Process 20399 attached
[pid 20399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20399] setpgid(0, 0)               = 0
[pid 20399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20399] write(3, "1000", 4)         = 4
[pid 20399] close(3)                    = 0
[pid 20399] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20399] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20399] write(4, "78", 2)           = 2
[pid 20399] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20399] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20399] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20399] exit_group(0)               = ?
[pid 20399] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20399, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20400
./strace-static-x86_64: Process 20400 attached
[pid 20400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20400] setpgid(0, 0)               = 0
[pid 20400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20400] write(3, "1000", 4)         = 4
[pid 20400] close(3)                    = 0
[pid 20400] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20400] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20400] write(4, "78", 2)           = 2
[pid 20400] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20400] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20400] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20400] exit_group(0)               = ?
[pid 20400] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20400, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20401 attached
, child_tidptr=0x555555af35d0) = 20401
[pid 20401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20401] setpgid(0, 0)               = 0
[pid 20401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20401] write(3, "1000", 4)         = 4
[pid 20401] close(3)                    = 0
[pid 20401] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20401] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20401] write(4, "78", 2)           = 2
[pid 20401] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20401] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20401] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20401] exit_group(0)               = ?
[pid 20401] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20401, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20402 attached
, child_tidptr=0x555555af35d0) = 20402
[pid 20402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20402] setpgid(0, 0)               = 0
[pid 20402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20402] write(3, "1000", 4)         = 4
[pid 20402] close(3)                    = 0
[pid 20402] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20402] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20402] write(4, "78", 2)           = 2
[pid 20402] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20402] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20402] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20402] exit_group(0)               = ?
[pid 20402] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20402, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20403 attached
, child_tidptr=0x555555af35d0) = 20403
[pid 20403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20403] setpgid(0, 0)               = 0
[pid 20403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20403] write(3, "1000", 4)         = 4
[pid 20403] close(3)                    = 0
[pid 20403] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20403] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20403] write(4, "78", 2)           = 2
[pid 20403] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20403] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20403] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20403] exit_group(0)               = ?
[pid 20403] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20403, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20404 attached
, child_tidptr=0x555555af35d0) = 20404
[pid 20404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20404] setpgid(0, 0)               = 0
[pid 20404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20404] write(3, "1000", 4)         = 4
[pid 20404] close(3)                    = 0
[pid 20404] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20404] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20404] write(4, "78", 2)           = 2
[pid 20404] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20404] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20404] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20404] exit_group(0)               = ?
[pid 20404] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20404, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20405 attached
, child_tidptr=0x555555af35d0) = 20405
[pid 20405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20405] setpgid(0, 0)               = 0
[pid 20405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20405] write(3, "1000", 4)         = 4
[pid 20405] close(3)                    = 0
[pid 20405] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20405] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20405] write(4, "78", 2)           = 2
[pid 20405] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20405] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20405] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20405] exit_group(0)               = ?
[pid 20405] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20405, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20406 attached
, child_tidptr=0x555555af35d0) = 20406
[pid 20406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20406] setpgid(0, 0)               = 0
[pid 20406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20406] write(3, "1000", 4)         = 4
[pid 20406] close(3)                    = 0
[pid 20406] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20406] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20406] write(4, "78", 2)           = 2
[pid 20406] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20406] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20406] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20406] exit_group(0)               = ?
[pid 20406] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20406, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20407
./strace-static-x86_64: Process 20407 attached
[pid 20407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20407] setpgid(0, 0)               = 0
[pid 20407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20407] write(3, "1000", 4)         = 4
[pid 20407] close(3)                    = 0
[pid 20407] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20407] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20407] write(4, "78", 2)           = 2
[pid 20407] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20407] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20407] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20407] exit_group(0)               = ?
[pid 20407] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20407, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20408 attached
, child_tidptr=0x555555af35d0) = 20408
[pid 20408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20408] setpgid(0, 0)               = 0
[pid 20408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20408] write(3, "1000", 4)         = 4
[pid 20408] close(3)                    = 0
[pid 20408] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20408] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20408] write(4, "78", 2)           = 2
[pid 20408] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20408] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20408] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20408] exit_group(0)               = ?
[pid 20408] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20408, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20409 attached
, child_tidptr=0x555555af35d0) = 20409
[pid 20409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20409] setpgid(0, 0)               = 0
[pid 20409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20409] write(3, "1000", 4)         = 4
[pid 20409] close(3)                    = 0
[pid 20409] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20409] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20409] write(4, "78", 2)           = 2
[pid 20409] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20409] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20409] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20409] exit_group(0)               = ?
[pid 20409] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20409, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20410
./strace-static-x86_64: Process 20410 attached
[pid 20410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20410] setpgid(0, 0)               = 0
[pid 20410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20410] write(3, "1000", 4)         = 4
[pid 20410] close(3)                    = 0
[pid 20410] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20410] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20410] write(4, "78", 2)           = 2
[pid 20410] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20410] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20410] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20410] exit_group(0)               = ?
[pid 20410] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20410, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20411
./strace-static-x86_64: Process 20411 attached
[pid 20411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20411] setpgid(0, 0)               = 0
[pid 20411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20411] write(3, "1000", 4)         = 4
[pid 20411] close(3)                    = 0
[pid 20411] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20411] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20411] write(4, "78", 2)           = 2
[pid 20411] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20411] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20411] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20411] exit_group(0)               = ?
[pid 20411] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20411, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20412 attached
, child_tidptr=0x555555af35d0) = 20412
[pid 20412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20412] setpgid(0, 0)               = 0
[pid 20412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20412] write(3, "1000", 4)         = 4
[pid 20412] close(3)                    = 0
[pid 20412] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20412] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20412] write(4, "78", 2)           = 2
[pid 20412] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20412] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20412] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20412] exit_group(0)               = ?
[pid 20412] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20412, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20413 attached
, child_tidptr=0x555555af35d0) = 20413
[pid 20413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20413] setpgid(0, 0)               = 0
[pid 20413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20413] write(3, "1000", 4)         = 4
[pid 20413] close(3)                    = 0
[pid 20413] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20413] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20413] write(4, "78", 2)           = 2
[pid 20413] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20413] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20413] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20413] exit_group(0)               = ?
[pid 20413] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20413, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20414 attached
, child_tidptr=0x555555af35d0) = 20414
[pid 20414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20414] setpgid(0, 0)               = 0
[pid 20414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20414] write(3, "1000", 4)         = 4
[pid 20414] close(3)                    = 0
[pid 20414] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20414] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20414] write(4, "78", 2)           = 2
[pid 20414] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20414] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20414] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20414] exit_group(0)               = ?
[pid 20414] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20414, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20415 attached
, child_tidptr=0x555555af35d0) = 20415
[pid 20415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20415] setpgid(0, 0)               = 0
[pid 20415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20415] write(3, "1000", 4)         = 4
[pid 20415] close(3)                    = 0
[pid 20415] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20415] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20415] write(4, "78", 2)           = 2
[pid 20415] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20415] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20415] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20415] exit_group(0)               = ?
[pid 20415] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20415, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20416
./strace-static-x86_64: Process 20416 attached
[pid 20416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20416] setpgid(0, 0)               = 0
[pid 20416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20416] write(3, "1000", 4)         = 4
[pid 20416] close(3)                    = 0
[pid 20416] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20416] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20416] write(4, "78", 2)           = 2
[pid 20416] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20416] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20416] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20416] exit_group(0)               = ?
[pid 20416] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20416, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20417
./strace-static-x86_64: Process 20417 attached
[pid 20417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20417] setpgid(0, 0)               = 0
[pid 20417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20417] write(3, "1000", 4)         = 4
[pid 20417] close(3)                    = 0
[pid 20417] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20417] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20417] write(4, "78", 2)           = 2
[pid 20417] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20417] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20417] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20417] exit_group(0)               = ?
[pid 20417] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20417, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20418
./strace-static-x86_64: Process 20418 attached
[pid 20418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20418] setpgid(0, 0)               = 0
[pid 20418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20418] write(3, "1000", 4)         = 4
[pid 20418] close(3)                    = 0
[pid 20418] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20418] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20418] write(4, "78", 2)           = 2
[pid 20418] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20418] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20418] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20418] exit_group(0)               = ?
[pid 20418] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20418, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20419
./strace-static-x86_64: Process 20419 attached
[pid 20419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20419] setpgid(0, 0)               = 0
[pid 20419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20419] write(3, "1000", 4)         = 4
[pid 20419] close(3)                    = 0
[pid 20419] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20419] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20419] write(4, "78", 2)           = 2
[pid 20419] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20419] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20419] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20419] exit_group(0)               = ?
[pid 20419] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20419, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20420
./strace-static-x86_64: Process 20420 attached
[pid 20420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20420] setpgid(0, 0)               = 0
[pid 20420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20420] write(3, "1000", 4)         = 4
[pid 20420] close(3)                    = 0
[pid 20420] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20420] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20420] write(4, "78", 2)           = 2
[pid 20420] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20420] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20420] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20420] exit_group(0)               = ?
[pid 20420] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20420, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20421
./strace-static-x86_64: Process 20421 attached
[pid 20421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20421] setpgid(0, 0)               = 0
[pid 20421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20421] write(3, "1000", 4)         = 4
[pid 20421] close(3)                    = 0
[pid 20421] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20421] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20421] write(4, "78", 2)           = 2
[pid 20421] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20421] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20421] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20421] exit_group(0)               = ?
[pid 20421] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20421, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20422 attached
, child_tidptr=0x555555af35d0) = 20422
[pid 20422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20422] setpgid(0, 0)               = 0
[pid 20422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20422] write(3, "1000", 4)         = 4
[pid 20422] close(3)                    = 0
[pid 20422] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20422] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20422] write(4, "78", 2)           = 2
[pid 20422] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20422] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20422] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20422] exit_group(0)               = ?
[pid 20422] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20422, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20423 attached
, child_tidptr=0x555555af35d0) = 20423
[pid 20423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20423] setpgid(0, 0)               = 0
[pid 20423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20423] write(3, "1000", 4)         = 4
[pid 20423] close(3)                    = 0
[pid 20423] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20423] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20423] write(4, "78", 2)           = 2
[pid 20423] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20423] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20423] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20423] exit_group(0)               = ?
[pid 20423] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20423, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20424 attached
, child_tidptr=0x555555af35d0) = 20424
[pid 20424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20424] setpgid(0, 0)               = 0
[pid 20424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20424] write(3, "1000", 4)         = 4
[pid 20424] close(3)                    = 0
[pid 20424] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20424] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20424] write(4, "78", 2)           = 2
[pid 20424] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20424] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20424] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20424] exit_group(0)               = ?
[pid 20424] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20424, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20425 attached
, child_tidptr=0x555555af35d0) = 20425
[pid 20425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20425] setpgid(0, 0)               = 0
[pid 20425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20425] write(3, "1000", 4)         = 4
[pid 20425] close(3)                    = 0
[pid 20425] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20425] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20425] write(4, "78", 2)           = 2
[pid 20425] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20425] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20425] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20425] exit_group(0)               = ?
[pid 20425] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20425, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20426
./strace-static-x86_64: Process 20426 attached
[pid 20426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20426] setpgid(0, 0)               = 0
[pid 20426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20426] write(3, "1000", 4)         = 4
[pid 20426] close(3)                    = 0
[pid 20426] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20426] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20426] write(4, "78", 2)           = 2
[pid 20426] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20426] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20426] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20426] exit_group(0)               = ?
[pid 20426] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20426, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20427
./strace-static-x86_64: Process 20427 attached
[pid 20427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20427] setpgid(0, 0)               = 0
[pid 20427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20427] write(3, "1000", 4)         = 4
[pid 20427] close(3)                    = 0
[pid 20427] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20427] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20427] write(4, "78", 2)           = 2
[pid 20427] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20427] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20427] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20427] exit_group(0)               = ?
[pid 20427] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20427, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20428
./strace-static-x86_64: Process 20428 attached
[pid 20428] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20428] setpgid(0, 0)               = 0
[pid 20428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20428] write(3, "1000", 4)         = 4
[pid 20428] close(3)                    = 0
[pid 20428] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20428] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20428] write(4, "78", 2)           = 2
[pid 20428] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20428] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20428] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20428] exit_group(0)               = ?
[pid 20428] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20428, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20429 attached
, child_tidptr=0x555555af35d0) = 20429
[pid 20429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20429] setpgid(0, 0)               = 0
[pid 20429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20429] write(3, "1000", 4)         = 4
[pid 20429] close(3)                    = 0
[pid 20429] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20429] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20429] write(4, "78", 2)           = 2
[pid 20429] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20429] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20429] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20429] exit_group(0)               = ?
[pid 20429] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20429, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20430
./strace-static-x86_64: Process 20430 attached
[pid 20430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20430] setpgid(0, 0)               = 0
[pid 20430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20430] write(3, "1000", 4)         = 4
[pid 20430] close(3)                    = 0
[pid 20430] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20430] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20430] write(4, "78", 2)           = 2
[pid 20430] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20430] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20430] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20430] exit_group(0)               = ?
[pid 20430] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20430, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20431 attached
, child_tidptr=0x555555af35d0) = 20431
[pid 20431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20431] setpgid(0, 0)               = 0
[pid 20431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20431] write(3, "1000", 4)         = 4
[pid 20431] close(3)                    = 0
[pid 20431] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20431] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20431] write(4, "78", 2)           = 2
[pid 20431] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20431] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20431] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20431] exit_group(0)               = ?
[pid 20431] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20431, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20432
./strace-static-x86_64: Process 20432 attached
[pid 20432] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20432] setpgid(0, 0)               = 0
[pid 20432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20432] write(3, "1000", 4)         = 4
[pid 20432] close(3)                    = 0
[pid 20432] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20432] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20432] write(4, "78", 2)           = 2
[pid 20432] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20432] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20432] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20432] exit_group(0)               = ?
[pid 20432] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20432, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20433
./strace-static-x86_64: Process 20433 attached
[pid 20433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20433] setpgid(0, 0)               = 0
[pid 20433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20433] write(3, "1000", 4)         = 4
[pid 20433] close(3)                    = 0
[pid 20433] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20433] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20433] write(4, "78", 2)           = 2
[pid 20433] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20433] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20433] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20433] exit_group(0)               = ?
[pid 20433] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20433, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20434
./strace-static-x86_64: Process 20434 attached
[pid 20434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20434] setpgid(0, 0)               = 0
[pid 20434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20434] write(3, "1000", 4)         = 4
[pid 20434] close(3)                    = 0
[pid 20434] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20434] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20434] write(4, "78", 2)           = 2
[pid 20434] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20434] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20434] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20434] exit_group(0)               = ?
[pid 20434] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20434, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20435 attached
, child_tidptr=0x555555af35d0) = 20435
[pid 20435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20435] setpgid(0, 0)               = 0
[pid 20435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20435] write(3, "1000", 4)         = 4
[pid 20435] close(3)                    = 0
[pid 20435] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20435] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20435] write(4, "78", 2)           = 2
[pid 20435] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20435] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20435] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20435] exit_group(0)               = ?
[pid 20435] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20435, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20436 attached
, child_tidptr=0x555555af35d0) = 20436
[pid 20436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20436] setpgid(0, 0)               = 0
[pid 20436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20436] write(3, "1000", 4)         = 4
[pid 20436] close(3)                    = 0
[pid 20436] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20436] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20436] write(4, "78", 2)           = 2
[pid 20436] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20436] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20436] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20436] exit_group(0)               = ?
[pid 20436] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20436, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20437
./strace-static-x86_64: Process 20437 attached
[pid 20437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20437] setpgid(0, 0)               = 0
[pid 20437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20437] write(3, "1000", 4)         = 4
[pid 20437] close(3)                    = 0
[pid 20437] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20437] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20437] write(4, "78", 2)           = 2
[pid 20437] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20437] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20437] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20437] exit_group(0)               = ?
[pid 20437] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20437, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20438
./strace-static-x86_64: Process 20438 attached
[pid 20438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20438] setpgid(0, 0)               = 0
[pid 20438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20438] write(3, "1000", 4)         = 4
[pid 20438] close(3)                    = 0
[pid 20438] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20438] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20438] write(4, "78", 2)           = 2
[pid 20438] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20438] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20438] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20438] exit_group(0)               = ?
[pid 20438] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20438, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20439 attached
, child_tidptr=0x555555af35d0) = 20439
[pid 20439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20439] setpgid(0, 0)               = 0
[pid 20439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20439] write(3, "1000", 4)         = 4
[pid 20439] close(3)                    = 0
[pid 20439] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20439] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20439] write(4, "78", 2)           = 2
[pid 20439] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20439] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20439] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20439] exit_group(0)               = ?
[pid 20439] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20439, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20440 attached
, child_tidptr=0x555555af35d0) = 20440
[pid 20440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20440] setpgid(0, 0)               = 0
[pid 20440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20440] write(3, "1000", 4)         = 4
[pid 20440] close(3)                    = 0
[pid 20440] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20440] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20440] write(4, "78", 2)           = 2
[pid 20440] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20440] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20440] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20440] exit_group(0)               = ?
[pid 20440] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20440, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20441 attached
, child_tidptr=0x555555af35d0) = 20441
[pid 20441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20441] setpgid(0, 0)               = 0
[pid 20441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20441] write(3, "1000", 4)         = 4
[pid 20441] close(3)                    = 0
[pid 20441] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20441] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20441] write(4, "78", 2)           = 2
[pid 20441] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20441] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20441] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20441] exit_group(0)               = ?
[pid 20441] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20441, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20442 attached
, child_tidptr=0x555555af35d0) = 20442
[pid 20442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20442] setpgid(0, 0)               = 0
[pid 20442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20442] write(3, "1000", 4)         = 4
[pid 20442] close(3)                    = 0
[pid 20442] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20442] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20442] write(4, "78", 2)           = 2
[pid 20442] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20442] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20442] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20442] exit_group(0)               = ?
[pid 20442] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20442, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20443 attached
, child_tidptr=0x555555af35d0) = 20443
[pid 20443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20443] setpgid(0, 0)               = 0
[pid 20443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20443] write(3, "1000", 4)         = 4
[pid 20443] close(3)                    = 0
[pid 20443] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20443] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20443] write(4, "78", 2)           = 2
[pid 20443] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20443] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20443] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20443] exit_group(0)               = ?
[pid 20443] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20443, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20444 attached
, child_tidptr=0x555555af35d0) = 20444
[pid 20444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20444] setpgid(0, 0)               = 0
[pid 20444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20444] write(3, "1000", 4)         = 4
[pid 20444] close(3)                    = 0
[pid 20444] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20444] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20444] write(4, "78", 2)           = 2
[pid 20444] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20444] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20444] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20444] exit_group(0)               = ?
[pid 20444] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20444, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20445 attached
, child_tidptr=0x555555af35d0) = 20445
[pid 20445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20445] setpgid(0, 0)               = 0
[pid 20445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20445] write(3, "1000", 4)         = 4
[pid 20445] close(3)                    = 0
[pid 20445] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20445] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20445] write(4, "78", 2)           = 2
[pid 20445] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20445] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20445] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20445] exit_group(0)               = ?
[pid 20445] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20445, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20446 attached
, child_tidptr=0x555555af35d0) = 20446
[pid 20446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20446] setpgid(0, 0)               = 0
[pid 20446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20446] write(3, "1000", 4)         = 4
[pid 20446] close(3)                    = 0
[pid 20446] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20446] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20446] write(4, "78", 2)           = 2
[pid 20446] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20446] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20446] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20446] exit_group(0)               = ?
[pid 20446] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20446, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20447
./strace-static-x86_64: Process 20447 attached
[pid 20447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20447] setpgid(0, 0)               = 0
[pid 20447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20447] write(3, "1000", 4)         = 4
[pid 20447] close(3)                    = 0
[pid 20447] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20447] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20447] write(4, "78", 2)           = 2
[pid 20447] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20447] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20447] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20447] exit_group(0)               = ?
[pid 20447] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20447, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20448 attached
, child_tidptr=0x555555af35d0) = 20448
[pid 20448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20448] setpgid(0, 0)               = 0
[pid 20448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20448] write(3, "1000", 4)         = 4
[pid 20448] close(3)                    = 0
[pid 20448] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20448] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20448] write(4, "78", 2)           = 2
[pid 20448] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20448] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20448] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20448] exit_group(0)               = ?
[pid 20448] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20448, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20449 attached
, child_tidptr=0x555555af35d0) = 20449
[pid 20449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20449] setpgid(0, 0)               = 0
[pid 20449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20449] write(3, "1000", 4)         = 4
[pid 20449] close(3)                    = 0
[pid 20449] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20449] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20449] write(4, "78", 2)           = 2
[pid 20449] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20449] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20449] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20449] exit_group(0)               = ?
[pid 20449] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20449, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20450 attached
, child_tidptr=0x555555af35d0) = 20450
[pid 20450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20450] setpgid(0, 0)               = 0
[pid 20450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20450] write(3, "1000", 4)         = 4
[pid 20450] close(3)                    = 0
[pid 20450] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20450] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20450] write(4, "78", 2)           = 2
[pid 20450] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20450] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20450] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20450] exit_group(0)               = ?
[pid 20450] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20450, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20451 attached
, child_tidptr=0x555555af35d0) = 20451
[pid 20451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20451] setpgid(0, 0)               = 0
[pid 20451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20451] write(3, "1000", 4)         = 4
[pid 20451] close(3)                    = 0
[pid 20451] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20451] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20451] write(4, "78", 2)           = 2
[pid 20451] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20451] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20451] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20451] exit_group(0)               = ?
[pid 20451] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20451, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20452 attached
, child_tidptr=0x555555af35d0) = 20452
[pid 20452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20452] setpgid(0, 0)               = 0
[pid 20452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20452] write(3, "1000", 4)         = 4
[pid 20452] close(3)                    = 0
[pid 20452] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20452] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20452] write(4, "78", 2)           = 2
[pid 20452] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20452] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20452] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20452] exit_group(0)               = ?
[pid 20452] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20452, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20453 attached
, child_tidptr=0x555555af35d0) = 20453
[pid 20453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20453] setpgid(0, 0)               = 0
[pid 20453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20453] write(3, "1000", 4)         = 4
[pid 20453] close(3)                    = 0
[pid 20453] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20453] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20453] write(4, "78", 2)           = 2
[pid 20453] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20453] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20453] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20453] exit_group(0)               = ?
[pid 20453] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20453, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20454 attached
, child_tidptr=0x555555af35d0) = 20454
[pid 20454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20454] setpgid(0, 0)               = 0
[pid 20454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20454] write(3, "1000", 4)         = 4
[pid 20454] close(3)                    = 0
[pid 20454] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20454] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20454] write(4, "78", 2)           = 2
[pid 20454] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20454] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20454] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20454] exit_group(0)               = ?
[pid 20454] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20454, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20455 attached
, child_tidptr=0x555555af35d0) = 20455
[pid 20455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20455] setpgid(0, 0)               = 0
[pid 20455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20455] write(3, "1000", 4)         = 4
[pid 20455] close(3)                    = 0
[pid 20455] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20455] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20455] write(4, "78", 2)           = 2
[pid 20455] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20455] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20455] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20455] exit_group(0)               = ?
[pid 20455] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20455, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20456 attached
, child_tidptr=0x555555af35d0) = 20456
[pid 20456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20456] setpgid(0, 0)               = 0
[pid 20456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20456] write(3, "1000", 4)         = 4
[pid 20456] close(3)                    = 0
[pid 20456] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20456] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20456] write(4, "78", 2)           = 2
[pid 20456] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20456] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20456] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20456] exit_group(0)               = ?
[pid 20456] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20456, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20457 attached
, child_tidptr=0x555555af35d0) = 20457
[pid 20457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20457] setpgid(0, 0)               = 0
[pid 20457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20457] write(3, "1000", 4)         = 4
[pid 20457] close(3)                    = 0
[pid 20457] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20457] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20457] write(4, "78", 2)           = 2
[pid 20457] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20457] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20457] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20457] exit_group(0)               = ?
[pid 20457] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20457, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20458 attached
, child_tidptr=0x555555af35d0) = 20458
[pid 20458] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20458] setpgid(0, 0)               = 0
[pid 20458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20458] write(3, "1000", 4)         = 4
[pid 20458] close(3)                    = 0
[pid 20458] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20458] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20458] write(4, "78", 2)           = 2
[pid 20458] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20458] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20458] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20458] exit_group(0)               = ?
[pid 20458] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20458, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20459 attached
, child_tidptr=0x555555af35d0) = 20459
[pid 20459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20459] setpgid(0, 0)               = 0
[pid 20459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20459] write(3, "1000", 4)         = 4
[pid 20459] close(3)                    = 0
[pid 20459] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20459] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20459] write(4, "78", 2)           = 2
[pid 20459] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20459] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20459] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20459] exit_group(0)               = ?
[pid 20459] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20459, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20460 attached
, child_tidptr=0x555555af35d0) = 20460
[pid 20460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20460] setpgid(0, 0)               = 0
[pid 20460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20460] write(3, "1000", 4)         = 4
[pid 20460] close(3)                    = 0
[pid 20460] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20460] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20460] write(4, "78", 2)           = 2
[pid 20460] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20460] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20460] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20460] exit_group(0)               = ?
[pid 20460] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20460, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20461 attached
, child_tidptr=0x555555af35d0) = 20461
[pid 20461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20461] setpgid(0, 0)               = 0
[pid 20461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20461] write(3, "1000", 4)         = 4
[pid 20461] close(3)                    = 0
[pid 20461] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20461] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20461] write(4, "78", 2)           = 2
[pid 20461] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20461] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20461] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20461] exit_group(0)               = ?
[pid 20461] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20461, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20462
./strace-static-x86_64: Process 20462 attached
[pid 20462] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20462] setpgid(0, 0)               = 0
[pid 20462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20462] write(3, "1000", 4)         = 4
[pid 20462] close(3)                    = 0
[pid 20462] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20462] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20462] write(4, "78", 2)           = 2
[pid 20462] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20462] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20462] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20462] exit_group(0)               = ?
[pid 20462] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20462, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20463 attached
, child_tidptr=0x555555af35d0) = 20463
[pid 20463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20463] setpgid(0, 0)               = 0
[pid 20463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20463] write(3, "1000", 4)         = 4
[pid 20463] close(3)                    = 0
[pid 20463] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20463] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20463] write(4, "78", 2)           = 2
[pid 20463] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20463] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20463] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20463] exit_group(0)               = ?
[pid 20463] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20463, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20464 attached
, child_tidptr=0x555555af35d0) = 20464
[pid 20464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20464] setpgid(0, 0)               = 0
[pid 20464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20464] write(3, "1000", 4)         = 4
[pid 20464] close(3)                    = 0
[pid 20464] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20464] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20464] write(4, "78", 2)           = 2
[pid 20464] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20464] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20464] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20464] exit_group(0)               = ?
[pid 20464] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20464, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20465 attached
, child_tidptr=0x555555af35d0) = 20465
[pid 20465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20465] setpgid(0, 0)               = 0
[pid 20465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20465] write(3, "1000", 4)         = 4
[pid 20465] close(3)                    = 0
[pid 20465] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20465] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20465] write(4, "78", 2)           = 2
[pid 20465] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20465] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20465] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20465] exit_group(0)               = ?
[pid 20465] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20465, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20466
./strace-static-x86_64: Process 20466 attached
[pid 20466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20466] setpgid(0, 0)               = 0
[pid 20466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20466] write(3, "1000", 4)         = 4
[pid 20466] close(3)                    = 0
[pid 20466] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20466] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20466] write(4, "78", 2)           = 2
[pid 20466] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20466] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20466] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20466] exit_group(0)               = ?
[pid 20466] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20466, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20467 attached
, child_tidptr=0x555555af35d0) = 20467
[pid 20467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20467] setpgid(0, 0)               = 0
[pid 20467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20467] write(3, "1000", 4)         = 4
[pid 20467] close(3)                    = 0
[pid 20467] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20467] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20467] write(4, "78", 2)           = 2
[pid 20467] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20467] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20467] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20467] exit_group(0)               = ?
[pid 20467] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20467, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20468
./strace-static-x86_64: Process 20468 attached
[pid 20468] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20468] setpgid(0, 0)               = 0
[pid 20468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20468] write(3, "1000", 4)         = 4
[pid 20468] close(3)                    = 0
[pid 20468] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20468] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20468] write(4, "78", 2)           = 2
[pid 20468] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20468] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20468] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20468] exit_group(0)               = ?
[pid 20468] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20468, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20469 attached
, child_tidptr=0x555555af35d0) = 20469
[pid 20469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20469] setpgid(0, 0)               = 0
[pid 20469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20469] write(3, "1000", 4)         = 4
[pid 20469] close(3)                    = 0
[pid 20469] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20469] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20469] write(4, "78", 2)           = 2
[pid 20469] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20469] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20469] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20469] exit_group(0)               = ?
[pid 20469] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20469, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20470 attached
, child_tidptr=0x555555af35d0) = 20470
[pid 20470] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20470] setpgid(0, 0)               = 0
[pid 20470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20470] write(3, "1000", 4)         = 4
[pid 20470] close(3)                    = 0
[pid 20470] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20470] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20470] write(4, "78", 2)           = 2
[pid 20470] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20470] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20470] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20470] exit_group(0)               = ?
[pid 20470] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20470, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20471 attached
, child_tidptr=0x555555af35d0) = 20471
[pid 20471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20471] setpgid(0, 0)               = 0
[pid 20471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20471] write(3, "1000", 4)         = 4
[pid 20471] close(3)                    = 0
[pid 20471] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20471] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20471] write(4, "78", 2)           = 2
[pid 20471] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20471] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20471] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20471] exit_group(0)               = ?
[pid 20471] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20471, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20472 attached
, child_tidptr=0x555555af35d0) = 20472
[pid 20472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20472] setpgid(0, 0)               = 0
[pid 20472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20472] write(3, "1000", 4)         = 4
[pid 20472] close(3)                    = 0
[pid 20472] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20472] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20472] write(4, "78", 2)           = 2
[pid 20472] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20472] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20472] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20472] exit_group(0)               = ?
[pid 20472] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20472, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20473 attached
, child_tidptr=0x555555af35d0) = 20473
[pid 20473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20473] setpgid(0, 0)               = 0
[pid 20473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20473] write(3, "1000", 4)         = 4
[pid 20473] close(3)                    = 0
[pid 20473] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20473] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20473] write(4, "78", 2)           = 2
[pid 20473] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20473] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20473] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20473] exit_group(0)               = ?
[pid 20473] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20473, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20474 attached
, child_tidptr=0x555555af35d0) = 20474
[pid 20474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20474] setpgid(0, 0)               = 0
[pid 20474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20474] write(3, "1000", 4)         = 4
[pid 20474] close(3)                    = 0
[pid 20474] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20474] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20474] write(4, "78", 2)           = 2
[pid 20474] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20474] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20474] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20474] exit_group(0)               = ?
[pid 20474] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20474, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20475 attached
, child_tidptr=0x555555af35d0) = 20475
[pid 20475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20475] setpgid(0, 0)               = 0
[pid 20475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20475] write(3, "1000", 4)         = 4
[pid 20475] close(3)                    = 0
[pid 20475] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20475] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20475] write(4, "78", 2)           = 2
[pid 20475] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20475] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20475] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20475] exit_group(0)               = ?
[pid 20475] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20475, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20476 attached
, child_tidptr=0x555555af35d0) = 20476
[pid 20476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20476] setpgid(0, 0)               = 0
[pid 20476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20476] write(3, "1000", 4)         = 4
[pid 20476] close(3)                    = 0
[pid 20476] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20476] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20476] write(4, "78", 2)           = 2
[pid 20476] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20476] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20476] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20476] exit_group(0)               = ?
[pid 20476] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20476, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20477 attached
, child_tidptr=0x555555af35d0) = 20477
[pid 20477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20477] setpgid(0, 0)               = 0
[pid 20477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20477] write(3, "1000", 4)         = 4
[pid 20477] close(3)                    = 0
[pid 20477] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20477] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20477] write(4, "78", 2)           = 2
[pid 20477] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20477] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20477] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20477] exit_group(0)               = ?
[pid 20477] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20477, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20478 attached
, child_tidptr=0x555555af35d0) = 20478
[pid 20478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20478] setpgid(0, 0)               = 0
[pid 20478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20478] write(3, "1000", 4)         = 4
[pid 20478] close(3)                    = 0
[pid 20478] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20478] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20478] write(4, "78", 2)           = 2
[pid 20478] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20478] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20478] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20478] exit_group(0)               = ?
[pid 20478] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20478, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20479
./strace-static-x86_64: Process 20479 attached
[pid 20479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20479] setpgid(0, 0)               = 0
[pid 20479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20479] write(3, "1000", 4)         = 4
[pid 20479] close(3)                    = 0
[pid 20479] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20479] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20479] write(4, "78", 2)           = 2
[pid 20479] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20479] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20479] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20479] exit_group(0)               = ?
[pid 20479] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20479, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20480 attached
, child_tidptr=0x555555af35d0) = 20480
[pid 20480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20480] setpgid(0, 0)               = 0
[pid 20480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20480] write(3, "1000", 4)         = 4
[pid 20480] close(3)                    = 0
[pid 20480] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20480] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20480] write(4, "78", 2)           = 2
[pid 20480] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20480] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20480] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20480] exit_group(0)               = ?
[pid 20480] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20480, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20481 attached
, child_tidptr=0x555555af35d0) = 20481
[pid 20481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20481] setpgid(0, 0)               = 0
[pid 20481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20481] write(3, "1000", 4)         = 4
[pid 20481] close(3)                    = 0
[pid 20481] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20481] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20481] write(4, "78", 2)           = 2
[pid 20481] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20481] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20481] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20481] exit_group(0)               = ?
[pid 20481] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20481, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20482 attached
, child_tidptr=0x555555af35d0) = 20482
[pid 20482] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20482] setpgid(0, 0)               = 0
[pid 20482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20482] write(3, "1000", 4)         = 4
[pid 20482] close(3)                    = 0
[pid 20482] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20482] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20482] write(4, "78", 2)           = 2
[pid 20482] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20482] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20482] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20482] exit_group(0)               = ?
[pid 20482] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20482, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20483 attached
, child_tidptr=0x555555af35d0) = 20483
[pid 20483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20483] setpgid(0, 0)               = 0
[pid 20483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20483] write(3, "1000", 4)         = 4
[pid 20483] close(3)                    = 0
[pid 20483] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20483] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20483] write(4, "78", 2)           = 2
[pid 20483] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20483] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20483] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20483] exit_group(0)               = ?
[pid 20483] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20483, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20484 attached
, child_tidptr=0x555555af35d0) = 20484
[pid 20484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20484] setpgid(0, 0)               = 0
[pid 20484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20484] write(3, "1000", 4)         = 4
[pid 20484] close(3)                    = 0
[pid 20484] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20484] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20484] write(4, "78", 2)           = 2
[pid 20484] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20484] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20484] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20484] exit_group(0)               = ?
[pid 20484] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20484, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20485 attached
, child_tidptr=0x555555af35d0) = 20485
[pid 20485] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20485] setpgid(0, 0)               = 0
[pid 20485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20485] write(3, "1000", 4)         = 4
[pid 20485] close(3)                    = 0
[pid 20485] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20485] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20485] write(4, "78", 2)           = 2
[pid 20485] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20485] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20485] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20485] exit_group(0)               = ?
[pid 20485] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20485, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20486
./strace-static-x86_64: Process 20486 attached
[pid 20486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20486] setpgid(0, 0)               = 0
[pid 20486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20486] write(3, "1000", 4)         = 4
[pid 20486] close(3)                    = 0
[pid 20486] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20486] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20486] write(4, "78", 2)           = 2
[pid 20486] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20486] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20486] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20486] exit_group(0)               = ?
[pid 20486] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20486, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20487 attached
, child_tidptr=0x555555af35d0) = 20487
[pid 20487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20487] setpgid(0, 0)               = 0
[pid 20487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20487] write(3, "1000", 4)         = 4
[pid 20487] close(3)                    = 0
[pid 20487] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20487] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20487] write(4, "78", 2)           = 2
[pid 20487] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20487] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20487] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20487] exit_group(0)               = ?
[pid 20487] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20487, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20488 attached
, child_tidptr=0x555555af35d0) = 20488
[pid 20488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20488] setpgid(0, 0)               = 0
[pid 20488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20488] write(3, "1000", 4)         = 4
[pid 20488] close(3)                    = 0
[pid 20488] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20488] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20488] write(4, "78", 2)           = 2
[pid 20488] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20488] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20488] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20488] exit_group(0)               = ?
[pid 20488] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20488, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20489
./strace-static-x86_64: Process 20489 attached
[pid 20489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20489] setpgid(0, 0)               = 0
[pid 20489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20489] write(3, "1000", 4)         = 4
[pid 20489] close(3)                    = 0
[pid 20489] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20489] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20489] write(4, "78", 2)           = 2
[pid 20489] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20489] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20489] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20489] exit_group(0)               = ?
[pid 20489] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20489, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20490 attached
, child_tidptr=0x555555af35d0) = 20490
[pid 20490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20490] setpgid(0, 0)               = 0
[pid 20490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20490] write(3, "1000", 4)         = 4
[pid 20490] close(3)                    = 0
[pid 20490] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20490] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20490] write(4, "78", 2)           = 2
[pid 20490] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20490] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20490] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20490] exit_group(0)               = ?
[pid 20490] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20490, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20491 attached
, child_tidptr=0x555555af35d0) = 20491
[pid 20491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20491] setpgid(0, 0)               = 0
[pid 20491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20491] write(3, "1000", 4)         = 4
[pid 20491] close(3)                    = 0
[pid 20491] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20491] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20491] write(4, "78", 2)           = 2
[pid 20491] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20491] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20491] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20491] exit_group(0)               = ?
[pid 20491] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20491, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20492
./strace-static-x86_64: Process 20492 attached
[pid 20492] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20492] setpgid(0, 0)               = 0
[pid 20492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20492] write(3, "1000", 4)         = 4
[pid 20492] close(3)                    = 0
[pid 20492] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20492] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20492] write(4, "78", 2)           = 2
[pid 20492] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20492] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20492] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20492] exit_group(0)               = ?
[pid 20492] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20492, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20493
./strace-static-x86_64: Process 20493 attached
[pid 20493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20493] setpgid(0, 0)               = 0
[pid 20493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20493] write(3, "1000", 4)         = 4
[pid 20493] close(3)                    = 0
[pid 20493] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20493] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20493] write(4, "78", 2)           = 2
[pid 20493] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20493] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20493] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20493] exit_group(0)               = ?
[pid 20493] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20493, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20494
./strace-static-x86_64: Process 20494 attached
[pid 20494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20494] setpgid(0, 0)               = 0
[pid 20494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20494] write(3, "1000", 4)         = 4
[pid 20494] close(3)                    = 0
[pid 20494] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20494] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20494] write(4, "78", 2)           = 2
[pid 20494] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20494] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20494] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20494] exit_group(0)               = ?
[pid 20494] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20494, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20495 attached
, child_tidptr=0x555555af35d0) = 20495
[pid 20495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20495] setpgid(0, 0)               = 0
[pid 20495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20495] write(3, "1000", 4)         = 4
[pid 20495] close(3)                    = 0
[pid 20495] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20495] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20495] write(4, "78", 2)           = 2
[pid 20495] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20495] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20495] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20495] exit_group(0)               = ?
[pid 20495] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20495, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20496 attached
, child_tidptr=0x555555af35d0) = 20496
[pid 20496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20496] setpgid(0, 0)               = 0
[pid 20496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20496] write(3, "1000", 4)         = 4
[pid 20496] close(3)                    = 0
[pid 20496] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20496] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20496] write(4, "78", 2)           = 2
[pid 20496] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20496] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20496] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20496] exit_group(0)               = ?
[pid 20496] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20496, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20497 attached
, child_tidptr=0x555555af35d0) = 20497
[pid 20497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20497] setpgid(0, 0)               = 0
[pid 20497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20497] write(3, "1000", 4)         = 4
[pid 20497] close(3)                    = 0
[pid 20497] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20497] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20497] write(4, "78", 2)           = 2
[pid 20497] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20497] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20497] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20497] exit_group(0)               = ?
[pid 20497] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20497, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20498 attached
, child_tidptr=0x555555af35d0) = 20498
[pid 20498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20498] setpgid(0, 0)               = 0
[pid 20498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20498] write(3, "1000", 4)         = 4
[pid 20498] close(3)                    = 0
[pid 20498] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20498] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20498] write(4, "78", 2)           = 2
[pid 20498] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20498] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20498] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20498] exit_group(0)               = ?
[pid 20498] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20498, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20499 attached
, child_tidptr=0x555555af35d0) = 20499
[pid 20499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20499] setpgid(0, 0)               = 0
[pid 20499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20499] write(3, "1000", 4)         = 4
[pid 20499] close(3)                    = 0
[pid 20499] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20499] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20499] write(4, "78", 2)           = 2
[pid 20499] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20499] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20499] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20499] exit_group(0)               = ?
[pid 20499] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20499, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20500 attached
, child_tidptr=0x555555af35d0) = 20500
[pid 20500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20500] setpgid(0, 0)               = 0
[pid 20500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20500] write(3, "1000", 4)         = 4
[pid 20500] close(3)                    = 0
[pid 20500] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20500] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20500] write(4, "78", 2)           = 2
[pid 20500] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20500] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20500] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20500] exit_group(0)               = ?
[pid 20500] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20500, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20501 attached
, child_tidptr=0x555555af35d0) = 20501
[pid 20501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20501] setpgid(0, 0)               = 0
[pid 20501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20501] write(3, "1000", 4)         = 4
[pid 20501] close(3)                    = 0
[pid 20501] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20501] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20501] write(4, "78", 2)           = 2
[pid 20501] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20501] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20501] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20501] exit_group(0)               = ?
[pid 20501] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20501, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20502
./strace-static-x86_64: Process 20502 attached
[pid 20502] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20502] setpgid(0, 0)               = 0
[pid 20502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20502] write(3, "1000", 4)         = 4
[pid 20502] close(3)                    = 0
[pid 20502] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20502] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20502] write(4, "78", 2)           = 2
[pid 20502] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20502] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20502] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20502] exit_group(0)               = ?
[pid 20502] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20502, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20503 attached
, child_tidptr=0x555555af35d0) = 20503
[pid 20503] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20503] setpgid(0, 0)               = 0
[pid 20503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20503] write(3, "1000", 4)         = 4
[pid 20503] close(3)                    = 0
[pid 20503] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20503] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20503] write(4, "78", 2)           = 2
[pid 20503] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20503] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20503] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20503] exit_group(0)               = ?
[pid 20503] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20503, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20504 attached
, child_tidptr=0x555555af35d0) = 20504
[pid 20504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20504] setpgid(0, 0)               = 0
[pid 20504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20504] write(3, "1000", 4)         = 4
[pid 20504] close(3)                    = 0
[pid 20504] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20504] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20504] write(4, "78", 2)           = 2
[pid 20504] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20504] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20504] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20504] exit_group(0)               = ?
[pid 20504] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20504, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20505 attached
, child_tidptr=0x555555af35d0) = 20505
[pid 20505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20505] setpgid(0, 0)               = 0
[pid 20505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20505] write(3, "1000", 4)         = 4
[pid 20505] close(3)                    = 0
[pid 20505] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20505] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20505] write(4, "78", 2)           = 2
[pid 20505] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20505] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20505] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20505] exit_group(0)               = ?
[pid 20505] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20505, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20506
./strace-static-x86_64: Process 20506 attached
[pid 20506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20506] setpgid(0, 0)               = 0
[pid 20506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20506] write(3, "1000", 4)         = 4
[pid 20506] close(3)                    = 0
[pid 20506] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20506] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20506] write(4, "78", 2)           = 2
[pid 20506] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20506] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20506] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20506] exit_group(0)               = ?
[pid 20506] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20506, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20507 attached
, child_tidptr=0x555555af35d0) = 20507
[pid 20507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20507] setpgid(0, 0)               = 0
[pid 20507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20507] write(3, "1000", 4)         = 4
[pid 20507] close(3)                    = 0
[pid 20507] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20507] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20507] write(4, "78", 2)           = 2
[pid 20507] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20507] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20507] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20507] exit_group(0)               = ?
[pid 20507] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20507, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20508
./strace-static-x86_64: Process 20508 attached
[pid 20508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20508] setpgid(0, 0)               = 0
[pid 20508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20508] write(3, "1000", 4)         = 4
[pid 20508] close(3)                    = 0
[pid 20508] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20508] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20508] write(4, "78", 2)           = 2
[pid 20508] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20508] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20508] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20508] exit_group(0)               = ?
[pid 20508] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20508, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20509 attached
, child_tidptr=0x555555af35d0) = 20509
[pid 20509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20509] setpgid(0, 0)               = 0
[pid 20509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20509] write(3, "1000", 4)         = 4
[pid 20509] close(3)                    = 0
[pid 20509] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20509] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20509] write(4, "78", 2)           = 2
[pid 20509] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20509] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20509] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20509] exit_group(0)               = ?
[pid 20509] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20509, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20510
./strace-static-x86_64: Process 20510 attached
[pid 20510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20510] setpgid(0, 0)               = 0
[pid 20510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20510] write(3, "1000", 4)         = 4
[pid 20510] close(3)                    = 0
[pid 20510] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20510] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20510] write(4, "78", 2)           = 2
[pid 20510] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20510] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20510] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20510] exit_group(0)               = ?
[pid 20510] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20510, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20511
./strace-static-x86_64: Process 20511 attached
[pid 20511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20511] setpgid(0, 0)               = 0
[pid 20511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20511] write(3, "1000", 4)         = 4
[pid 20511] close(3)                    = 0
[pid 20511] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20511] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20511] write(4, "78", 2)           = 2
[pid 20511] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20511] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20511] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20511] exit_group(0)               = ?
[pid 20511] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20511, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20512
./strace-static-x86_64: Process 20512 attached
[pid 20512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20512] setpgid(0, 0)               = 0
[pid 20512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20512] write(3, "1000", 4)         = 4
[pid 20512] close(3)                    = 0
[pid 20512] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20512] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20512] write(4, "78", 2)           = 2
[pid 20512] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20512] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20512] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20512] exit_group(0)               = ?
[pid 20512] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20512, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20513 attached
, child_tidptr=0x555555af35d0) = 20513
[pid 20513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20513] setpgid(0, 0)               = 0
[pid 20513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20513] write(3, "1000", 4)         = 4
[pid 20513] close(3)                    = 0
[pid 20513] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20513] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20513] write(4, "78", 2)           = 2
[pid 20513] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20513] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20513] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20513] exit_group(0)               = ?
[pid 20513] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20513, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20514
./strace-static-x86_64: Process 20514 attached
[pid 20514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20514] setpgid(0, 0)               = 0
[pid 20514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20514] write(3, "1000", 4)         = 4
[pid 20514] close(3)                    = 0
[pid 20514] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20514] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20514] write(4, "78", 2)           = 2
[pid 20514] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20514] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20514] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20514] exit_group(0)               = ?
[pid 20514] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20514, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20515
./strace-static-x86_64: Process 20515 attached
[pid 20515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20515] setpgid(0, 0)               = 0
[pid 20515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20515] write(3, "1000", 4)         = 4
[pid 20515] close(3)                    = 0
[pid 20515] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20515] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20515] write(4, "78", 2)           = 2
[pid 20515] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20515] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20515] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20515] exit_group(0)               = ?
[pid 20515] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20515, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20516
./strace-static-x86_64: Process 20516 attached
[pid 20516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20516] setpgid(0, 0)               = 0
[pid 20516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20516] write(3, "1000", 4)         = 4
[pid 20516] close(3)                    = 0
[pid 20516] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20516] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20516] write(4, "78", 2)           = 2
[pid 20516] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20516] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20516] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20516] exit_group(0)               = ?
[pid 20516] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20516, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20517 attached
, child_tidptr=0x555555af35d0) = 20517
[pid 20517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20517] setpgid(0, 0)               = 0
[pid 20517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20517] write(3, "1000", 4)         = 4
[pid 20517] close(3)                    = 0
[pid 20517] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20517] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20517] write(4, "78", 2)           = 2
[pid 20517] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20517] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20517] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20517] exit_group(0)               = ?
[pid 20517] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20517, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20518 attached
, child_tidptr=0x555555af35d0) = 20518
[pid 20518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20518] setpgid(0, 0)               = 0
[pid 20518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20518] write(3, "1000", 4)         = 4
[pid 20518] close(3)                    = 0
[pid 20518] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20518] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20518] write(4, "78", 2)           = 2
[pid 20518] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20518] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20518] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20518] exit_group(0)               = ?
[pid 20518] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20518, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20519 attached
, child_tidptr=0x555555af35d0) = 20519
[pid 20519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20519] setpgid(0, 0)               = 0
[pid 20519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20519] write(3, "1000", 4)         = 4
[pid 20519] close(3)                    = 0
[pid 20519] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20519] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20519] write(4, "78", 2)           = 2
[pid 20519] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20519] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20519] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20519] exit_group(0)               = ?
[pid 20519] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20519, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20520 attached
, child_tidptr=0x555555af35d0) = 20520
[pid 20520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20520] setpgid(0, 0)               = 0
[pid 20520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20520] write(3, "1000", 4)         = 4
[pid 20520] close(3)                    = 0
[pid 20520] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20520] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20520] write(4, "78", 2)           = 2
[pid 20520] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20520] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20520] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20520] exit_group(0)               = ?
[pid 20520] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20520, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20521 attached
, child_tidptr=0x555555af35d0) = 20521
[pid 20521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20521] setpgid(0, 0)               = 0
[pid 20521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20521] write(3, "1000", 4)         = 4
[pid 20521] close(3)                    = 0
[pid 20521] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20521] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20521] write(4, "78", 2)           = 2
[pid 20521] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20521] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20521] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20521] exit_group(0)               = ?
[pid 20521] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20521, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20522 attached
, child_tidptr=0x555555af35d0) = 20522
[pid 20522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20522] setpgid(0, 0)               = 0
[pid 20522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20522] write(3, "1000", 4)         = 4
[pid 20522] close(3)                    = 0
[pid 20522] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20522] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20522] write(4, "78", 2)           = 2
[pid 20522] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20522] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20522] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20522] exit_group(0)               = ?
[pid 20522] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20522, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20523 attached
, child_tidptr=0x555555af35d0) = 20523
[pid 20523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20523] setpgid(0, 0)               = 0
[pid 20523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20523] write(3, "1000", 4)         = 4
[pid 20523] close(3)                    = 0
[pid 20523] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20523] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20523] write(4, "78", 2)           = 2
[pid 20523] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20523] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20523] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20523] exit_group(0)               = ?
[pid 20523] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20523, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20524
./strace-static-x86_64: Process 20524 attached
[pid 20524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20524] setpgid(0, 0)               = 0
[pid 20524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20524] write(3, "1000", 4)         = 4
[pid 20524] close(3)                    = 0
[pid 20524] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20524] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20524] write(4, "78", 2)           = 2
[pid 20524] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20524] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20524] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20524] exit_group(0)               = ?
[pid 20524] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20524, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20525
./strace-static-x86_64: Process 20525 attached
[pid 20525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20525] setpgid(0, 0)               = 0
[pid 20525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20525] write(3, "1000", 4)         = 4
[pid 20525] close(3)                    = 0
[pid 20525] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20525] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20525] write(4, "78", 2)           = 2
[pid 20525] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20525] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20525] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20525] exit_group(0)               = ?
[pid 20525] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20525, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20526 attached
, child_tidptr=0x555555af35d0) = 20526
[pid 20526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20526] setpgid(0, 0)               = 0
[pid 20526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20526] write(3, "1000", 4)         = 4
[pid 20526] close(3)                    = 0
[pid 20526] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20526] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20526] write(4, "78", 2)           = 2
[pid 20526] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20526] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20526] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20526] exit_group(0)               = ?
[pid 20526] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20526, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20527 attached
, child_tidptr=0x555555af35d0) = 20527
[pid 20527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20527] setpgid(0, 0)               = 0
[pid 20527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20527] write(3, "1000", 4)         = 4
[pid 20527] close(3)                    = 0
[pid 20527] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20527] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20527] write(4, "78", 2)           = 2
[pid 20527] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20527] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20527] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20527] exit_group(0)               = ?
[pid 20527] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20527, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20528 attached
, child_tidptr=0x555555af35d0) = 20528
[pid 20528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20528] setpgid(0, 0)               = 0
[pid 20528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20528] write(3, "1000", 4)         = 4
[pid 20528] close(3)                    = 0
[pid 20528] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20528] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20528] write(4, "78", 2)           = 2
[pid 20528] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20528] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20528] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20528] exit_group(0)               = ?
[pid 20528] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20528, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20529 attached
, child_tidptr=0x555555af35d0) = 20529
[pid 20529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20529] setpgid(0, 0)               = 0
[pid 20529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20529] write(3, "1000", 4)         = 4
[pid 20529] close(3)                    = 0
[pid 20529] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20529] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20529] write(4, "78", 2)           = 2
[pid 20529] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20529] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20529] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20529] exit_group(0)               = ?
[pid 20529] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20529, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20530 attached
, child_tidptr=0x555555af35d0) = 20530
[pid 20530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20530] setpgid(0, 0)               = 0
[pid 20530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20530] write(3, "1000", 4)         = 4
[pid 20530] close(3)                    = 0
[pid 20530] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20530] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20530] write(4, "78", 2)           = 2
[pid 20530] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20530] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20530] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20530] exit_group(0)               = ?
[pid 20530] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20530, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20531 attached
, child_tidptr=0x555555af35d0) = 20531
[pid 20531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20531] setpgid(0, 0)               = 0
[pid 20531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20531] write(3, "1000", 4)         = 4
[pid 20531] close(3)                    = 0
[pid 20531] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20531] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20531] write(4, "78", 2)           = 2
[pid 20531] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20531] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20531] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20531] exit_group(0)               = ?
[pid 20531] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20531, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20532 attached
, child_tidptr=0x555555af35d0) = 20532
[pid 20532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20532] setpgid(0, 0)               = 0
[pid 20532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20532] write(3, "1000", 4)         = 4
[pid 20532] close(3)                    = 0
[pid 20532] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20532] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20532] write(4, "78", 2)           = 2
[pid 20532] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20532] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20532] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20532] exit_group(0)               = ?
[pid 20532] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20532, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20533 attached
, child_tidptr=0x555555af35d0) = 20533
[pid 20533] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20533] setpgid(0, 0)               = 0
[pid 20533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20533] write(3, "1000", 4)         = 4
[pid 20533] close(3)                    = 0
[pid 20533] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20533] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20533] write(4, "78", 2)           = 2
[pid 20533] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20533] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20533] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20533] exit_group(0)               = ?
[pid 20533] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20533, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20534 attached
, child_tidptr=0x555555af35d0) = 20534
[pid 20534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20534] setpgid(0, 0)               = 0
[pid 20534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20534] write(3, "1000", 4)         = 4
[pid 20534] close(3)                    = 0
[pid 20534] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20534] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20534] write(4, "78", 2)           = 2
[pid 20534] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20534] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20534] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20534] exit_group(0)               = ?
[pid 20534] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20534, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20535 attached
, child_tidptr=0x555555af35d0) = 20535
[pid 20535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20535] setpgid(0, 0)               = 0
[pid 20535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20535] write(3, "1000", 4)         = 4
[pid 20535] close(3)                    = 0
[pid 20535] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20535] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20535] write(4, "78", 2)           = 2
[pid 20535] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20535] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20535] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20535] exit_group(0)               = ?
[pid 20535] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20535, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20536 attached
, child_tidptr=0x555555af35d0) = 20536
[pid 20536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20536] setpgid(0, 0)               = 0
[pid 20536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20536] write(3, "1000", 4)         = 4
[pid 20536] close(3)                    = 0
[pid 20536] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20536] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20536] write(4, "78", 2)           = 2
[pid 20536] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20536] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20536] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20536] exit_group(0)               = ?
[pid 20536] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20536, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20537
./strace-static-x86_64: Process 20537 attached
[pid 20537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20537] setpgid(0, 0)               = 0
[pid 20537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20537] write(3, "1000", 4)         = 4
[pid 20537] close(3)                    = 0
[pid 20537] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20537] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20537] write(4, "78", 2)           = 2
[pid 20537] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20537] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20537] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20537] exit_group(0)               = ?
[pid 20537] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20537, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20538
./strace-static-x86_64: Process 20538 attached
[pid 20538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20538] setpgid(0, 0)               = 0
[pid 20538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20538] write(3, "1000", 4)         = 4
[pid 20538] close(3)                    = 0
[pid 20538] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20538] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20538] write(4, "78", 2)           = 2
[pid 20538] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20538] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20538] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20538] exit_group(0)               = ?
[pid 20538] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20538, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20539 attached
, child_tidptr=0x555555af35d0) = 20539
[pid 20539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20539] setpgid(0, 0)               = 0
[pid 20539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20539] write(3, "1000", 4)         = 4
[pid 20539] close(3)                    = 0
[pid 20539] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20539] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20539] write(4, "78", 2)           = 2
[pid 20539] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20539] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20539] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20539] exit_group(0)               = ?
[pid 20539] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20539, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20540 attached
, child_tidptr=0x555555af35d0) = 20540
[pid 20540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20540] setpgid(0, 0)               = 0
[pid 20540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20540] write(3, "1000", 4)         = 4
[pid 20540] close(3)                    = 0
[pid 20540] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20540] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20540] write(4, "78", 2)           = 2
[pid 20540] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20540] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20540] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20540] exit_group(0)               = ?
[pid 20540] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20540, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20541 attached
, child_tidptr=0x555555af35d0) = 20541
[pid 20541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20541] setpgid(0, 0)               = 0
[pid 20541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20541] write(3, "1000", 4)         = 4
[pid 20541] close(3)                    = 0
[pid 20541] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20541] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20541] write(4, "78", 2)           = 2
[pid 20541] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20541] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20541] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20541] exit_group(0)               = ?
[pid 20541] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20541, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20542 attached
, child_tidptr=0x555555af35d0) = 20542
[pid 20542] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20542] setpgid(0, 0)               = 0
[pid 20542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20542] write(3, "1000", 4)         = 4
[pid 20542] close(3)                    = 0
[pid 20542] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20542] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20542] write(4, "78", 2)           = 2
[pid 20542] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20542] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20542] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20542] exit_group(0)               = ?
[pid 20542] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20542, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20543 attached
, child_tidptr=0x555555af35d0) = 20543
[pid 20543] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20543] setpgid(0, 0)               = 0
[pid 20543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20543] write(3, "1000", 4)         = 4
[pid 20543] close(3)                    = 0
[pid 20543] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20543] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20543] write(4, "78", 2)           = 2
[pid 20543] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20543] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20543] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20543] exit_group(0)               = ?
[pid 20543] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20543, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20544 attached
, child_tidptr=0x555555af35d0) = 20544
[pid 20544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20544] setpgid(0, 0)               = 0
[pid 20544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20544] write(3, "1000", 4)         = 4
[pid 20544] close(3)                    = 0
[pid 20544] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20544] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20544] write(4, "78", 2)           = 2
[pid 20544] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20544] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20544] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20544] exit_group(0)               = ?
[pid 20544] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20544, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20545
./strace-static-x86_64: Process 20545 attached
[pid 20545] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20545] setpgid(0, 0)               = 0
[pid 20545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20545] write(3, "1000", 4)         = 4
[pid 20545] close(3)                    = 0
[pid 20545] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20545] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20545] write(4, "78", 2)           = 2
[pid 20545] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20545] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20545] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20545] exit_group(0)               = ?
[pid 20545] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20545, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20546 attached
, child_tidptr=0x555555af35d0) = 20546
[pid 20546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20546] setpgid(0, 0)               = 0
[pid 20546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20546] write(3, "1000", 4)         = 4
[pid 20546] close(3)                    = 0
[pid 20546] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20546] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20546] write(4, "78", 2)           = 2
[pid 20546] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20546] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20546] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20546] exit_group(0)               = ?
[pid 20546] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20546, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20547 attached
, child_tidptr=0x555555af35d0) = 20547
[pid 20547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20547] setpgid(0, 0)               = 0
[pid 20547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20547] write(3, "1000", 4)         = 4
[pid 20547] close(3)                    = 0
[pid 20547] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20547] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20547] write(4, "78", 2)           = 2
[pid 20547] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20547] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20547] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20547] exit_group(0)               = ?
[pid 20547] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20547, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20548
./strace-static-x86_64: Process 20548 attached
[pid 20548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20548] setpgid(0, 0)               = 0
[pid 20548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20548] write(3, "1000", 4)         = 4
[pid 20548] close(3)                    = 0
[pid 20548] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20548] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20548] write(4, "78", 2)           = 2
[pid 20548] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20548] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20548] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20548] exit_group(0)               = ?
[pid 20548] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20548, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20549 attached
, child_tidptr=0x555555af35d0) = 20549
[pid 20549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20549] setpgid(0, 0)               = 0
[pid 20549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20549] write(3, "1000", 4)         = 4
[pid 20549] close(3)                    = 0
[pid 20549] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20549] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20549] write(4, "78", 2)           = 2
[pid 20549] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20549] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20549] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20549] exit_group(0)               = ?
[pid 20549] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20549, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20550 attached
, child_tidptr=0x555555af35d0) = 20550
[pid 20550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20550] setpgid(0, 0)               = 0
[pid 20550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20550] write(3, "1000", 4)         = 4
[pid 20550] close(3)                    = 0
[pid 20550] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20550] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20550] write(4, "78", 2)           = 2
[pid 20550] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20550] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20550] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20550] exit_group(0)               = ?
[pid 20550] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20550, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20551 attached
, child_tidptr=0x555555af35d0) = 20551
[pid 20551] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20551] setpgid(0, 0)               = 0
[pid 20551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20551] write(3, "1000", 4)         = 4
[pid 20551] close(3)                    = 0
[pid 20551] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20551] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20551] write(4, "78", 2)           = 2
[pid 20551] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20551] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20551] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20551] exit_group(0)               = ?
[pid 20551] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20551, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20552 attached
, child_tidptr=0x555555af35d0) = 20552
[pid 20552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20552] setpgid(0, 0)               = 0
[pid 20552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20552] write(3, "1000", 4)         = 4
[pid 20552] close(3)                    = 0
[pid 20552] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20552] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20552] write(4, "78", 2)           = 2
[pid 20552] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20552] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20552] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20552] exit_group(0)               = ?
[pid 20552] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20552, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20553 attached
, child_tidptr=0x555555af35d0) = 20553
[pid 20553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20553] setpgid(0, 0)               = 0
[pid 20553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20553] write(3, "1000", 4)         = 4
[pid 20553] close(3)                    = 0
[pid 20553] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20553] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20553] write(4, "78", 2)           = 2
[pid 20553] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20553] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20553] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20553] exit_group(0)               = ?
[pid 20553] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20553, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20554 attached
, child_tidptr=0x555555af35d0) = 20554
[pid 20554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20554] setpgid(0, 0)               = 0
[pid 20554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20554] write(3, "1000", 4)         = 4
[pid 20554] close(3)                    = 0
[pid 20554] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20554] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20554] write(4, "78", 2)           = 2
[pid 20554] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20554] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20554] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20554] exit_group(0)               = ?
[pid 20554] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20554, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20555 attached
 <unfinished ...>
[pid 20555] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20555] setpgid(0, 0 <unfinished ...>
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 20555
[pid 20555] <... setpgid resumed>)      = 0
[pid 20555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20555] write(3, "1000", 4)         = 4
[pid 20555] close(3)                    = 0
[pid 20555] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20555] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20555] write(4, "78", 2)           = 2
[pid 20555] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20555] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20555] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20555] exit_group(0)               = ?
[pid 20555] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20555, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20556
./strace-static-x86_64: Process 20556 attached
[pid 20556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20556] setpgid(0, 0)               = 0
[pid 20556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20556] write(3, "1000", 4)         = 4
[pid 20556] close(3)                    = 0
[pid 20556] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20556] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20556] write(4, "78", 2)           = 2
[pid 20556] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20556] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20556] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20556] exit_group(0)               = ?
[pid 20556] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20556, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20557
./strace-static-x86_64: Process 20557 attached
[pid 20557] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20557] setpgid(0, 0)               = 0
[pid 20557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20557] write(3, "1000", 4)         = 4
[pid 20557] close(3)                    = 0
[pid 20557] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20557] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20557] write(4, "78", 2)           = 2
[pid 20557] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20557] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20557] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20557] exit_group(0)               = ?
[pid 20557] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20557, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20558 attached
, child_tidptr=0x555555af35d0) = 20558
[pid 20558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20558] setpgid(0, 0)               = 0
[pid 20558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20558] write(3, "1000", 4)         = 4
[pid 20558] close(3)                    = 0
[pid 20558] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20558] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20558] write(4, "78", 2)           = 2
[pid 20558] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20558] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20558] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20558] exit_group(0)               = ?
[pid 20558] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20558, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20559
./strace-static-x86_64: Process 20559 attached
[pid 20559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20559] setpgid(0, 0)               = 0
[pid 20559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20559] write(3, "1000", 4)         = 4
[pid 20559] close(3)                    = 0
[pid 20559] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20559] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20559] write(4, "78", 2)           = 2
[pid 20559] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20559] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20559] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20559] exit_group(0)               = ?
[pid 20559] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20559, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20560 attached
, child_tidptr=0x555555af35d0) = 20560
[pid 20560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20560] setpgid(0, 0)               = 0
[pid 20560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20560] write(3, "1000", 4)         = 4
[pid 20560] close(3)                    = 0
[pid 20560] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20560] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20560] write(4, "78", 2)           = 2
[pid 20560] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20560] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20560] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20560] exit_group(0)               = ?
[pid 20560] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20560, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20561 attached
, child_tidptr=0x555555af35d0) = 20561
[pid 20561] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20561] setpgid(0, 0)               = 0
[pid 20561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20561] write(3, "1000", 4)         = 4
[pid 20561] close(3)                    = 0
[pid 20561] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20561] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20561] write(4, "78", 2)           = 2
[pid 20561] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20561] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20561] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20561] exit_group(0)               = ?
[pid 20561] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20561, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20562
./strace-static-x86_64: Process 20562 attached
[pid 20562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20562] setpgid(0, 0)               = 0
[pid 20562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20562] write(3, "1000", 4)         = 4
[pid 20562] close(3)                    = 0
[pid 20562] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20562] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20562] write(4, "78", 2)           = 2
[pid 20562] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20562] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20562] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20562] exit_group(0)               = ?
[pid 20562] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20562, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20563 attached
, child_tidptr=0x555555af35d0) = 20563
[pid 20563] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20563] setpgid(0, 0)               = 0
[pid 20563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20563] write(3, "1000", 4)         = 4
[pid 20563] close(3)                    = 0
[pid 20563] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20563] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20563] write(4, "78", 2)           = 2
[pid 20563] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20563] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20563] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20563] exit_group(0)               = ?
[pid 20563] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20563, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20564
./strace-static-x86_64: Process 20564 attached
[pid 20564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20564] setpgid(0, 0)               = 0
[pid 20564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20564] write(3, "1000", 4)         = 4
[pid 20564] close(3)                    = 0
[pid 20564] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20564] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20564] write(4, "78", 2)           = 2
[pid 20564] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20564] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20564] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20564] exit_group(0)               = ?
[pid 20564] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20564, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20565 attached
, child_tidptr=0x555555af35d0) = 20565
[pid 20565] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20565] setpgid(0, 0)               = 0
[pid 20565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20565] write(3, "1000", 4)         = 4
[pid 20565] close(3)                    = 0
[pid 20565] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20565] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20565] write(4, "78", 2)           = 2
[pid 20565] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20565] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20565] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20565] exit_group(0)               = ?
[pid 20565] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20565, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20566 attached
, child_tidptr=0x555555af35d0) = 20566
[pid 20566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20566] setpgid(0, 0)               = 0
[pid 20566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20566] write(3, "1000", 4)         = 4
[pid 20566] close(3)                    = 0
[pid 20566] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20566] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20566] write(4, "78", 2)           = 2
[pid 20566] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20566] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20566] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20566] exit_group(0)               = ?
[pid 20566] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20566, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20567 attached
, child_tidptr=0x555555af35d0) = 20567
[pid 20567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20567] setpgid(0, 0)               = 0
[pid 20567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20567] write(3, "1000", 4)         = 4
[pid 20567] close(3)                    = 0
[pid 20567] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20567] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20567] write(4, "78", 2)           = 2
[pid 20567] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20567] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20567] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20567] exit_group(0)               = ?
[pid 20567] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20567, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20568 attached
, child_tidptr=0x555555af35d0) = 20568
[pid 20568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20568] setpgid(0, 0)               = 0
[pid 20568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20568] write(3, "1000", 4)         = 4
[pid 20568] close(3)                    = 0
[pid 20568] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20568] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20568] write(4, "78", 2)           = 2
[pid 20568] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20568] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20568] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20568] exit_group(0)               = ?
[pid 20568] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20568, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20569
./strace-static-x86_64: Process 20569 attached
[pid 20569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20569] setpgid(0, 0)               = 0
[pid 20569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20569] write(3, "1000", 4)         = 4
[pid 20569] close(3)                    = 0
[pid 20569] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20569] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20569] write(4, "78", 2)           = 2
[pid 20569] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20569] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20569] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20569] exit_group(0)               = ?
[pid 20569] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20569, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20570
./strace-static-x86_64: Process 20570 attached
[pid 20570] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20570] setpgid(0, 0)               = 0
[pid 20570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20570] write(3, "1000", 4)         = 4
[pid 20570] close(3)                    = 0
[pid 20570] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20570] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20570] write(4, "78", 2)           = 2
[pid 20570] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20570] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20570] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20570] exit_group(0)               = ?
[pid 20570] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20570, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20571 attached
, child_tidptr=0x555555af35d0) = 20571
[pid 20571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20571] setpgid(0, 0)               = 0
[pid 20571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20571] write(3, "1000", 4)         = 4
[pid 20571] close(3)                    = 0
[pid 20571] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20571] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20571] write(4, "78", 2)           = 2
[pid 20571] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20571] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20571] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20571] exit_group(0)               = ?
[pid 20571] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20571, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20572
./strace-static-x86_64: Process 20572 attached
[pid 20572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20572] setpgid(0, 0)               = 0
[pid 20572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20572] write(3, "1000", 4)         = 4
[pid 20572] close(3)                    = 0
[pid 20572] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20572] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20572] write(4, "78", 2)           = 2
[pid 20572] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20572] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20572] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20572] exit_group(0)               = ?
[pid 20572] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20572, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20573
./strace-static-x86_64: Process 20573 attached
[pid 20573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20573] setpgid(0, 0)               = 0
[pid 20573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20573] write(3, "1000", 4)         = 4
[pid 20573] close(3)                    = 0
[pid 20573] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20573] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20573] write(4, "78", 2)           = 2
[pid 20573] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20573] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20573] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20573] exit_group(0)               = ?
[pid 20573] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20573, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20574
./strace-static-x86_64: Process 20574 attached
[pid 20574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20574] setpgid(0, 0)               = 0
[pid 20574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20574] write(3, "1000", 4)         = 4
[pid 20574] close(3)                    = 0
[pid 20574] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20574] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20574] write(4, "78", 2)           = 2
[pid 20574] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20574] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20574] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20574] exit_group(0)               = ?
[pid 20574] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20574, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20575 attached
, child_tidptr=0x555555af35d0) = 20575
[pid 20575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20575] setpgid(0, 0)               = 0
[pid 20575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20575] write(3, "1000", 4)         = 4
[pid 20575] close(3)                    = 0
[pid 20575] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20575] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20575] write(4, "78", 2)           = 2
[pid 20575] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20575] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20575] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20575] exit_group(0)               = ?
[pid 20575] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20575, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20576
./strace-static-x86_64: Process 20576 attached
[pid 20576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20576] setpgid(0, 0)               = 0
[pid 20576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20576] write(3, "1000", 4)         = 4
[pid 20576] close(3)                    = 0
[pid 20576] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20576] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20576] write(4, "78", 2)           = 2
[pid 20576] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20576] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20576] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20576] exit_group(0)               = ?
[pid 20576] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20576, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20577 attached
, child_tidptr=0x555555af35d0) = 20577
[pid 20577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20577] setpgid(0, 0)               = 0
[pid 20577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20577] write(3, "1000", 4)         = 4
[pid 20577] close(3)                    = 0
[pid 20577] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20577] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20577] write(4, "78", 2)           = 2
[pid 20577] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20577] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20577] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20577] exit_group(0)               = ?
[pid 20577] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20577, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20578 attached
, child_tidptr=0x555555af35d0) = 20578
[pid 20578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20578] setpgid(0, 0)               = 0
[pid 20578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20578] write(3, "1000", 4)         = 4
[pid 20578] close(3)                    = 0
[pid 20578] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20578] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20578] write(4, "78", 2)           = 2
[pid 20578] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20578] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20578] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20578] exit_group(0)               = ?
[pid 20578] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20578, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20579 attached
, child_tidptr=0x555555af35d0) = 20579
[pid 20579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20579] setpgid(0, 0)               = 0
[pid 20579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20579] write(3, "1000", 4)         = 4
[pid 20579] close(3)                    = 0
[pid 20579] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20579] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20579] write(4, "78", 2)           = 2
[pid 20579] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20579] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20579] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20579] exit_group(0)               = ?
[pid 20579] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20579, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20580 attached
, child_tidptr=0x555555af35d0) = 20580
[pid 20580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20580] setpgid(0, 0)               = 0
[pid 20580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20580] write(3, "1000", 4)         = 4
[pid 20580] close(3)                    = 0
[pid 20580] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20580] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20580] write(4, "78", 2)           = 2
[pid 20580] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20580] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20580] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20580] exit_group(0)               = ?
[pid 20580] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20580, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20581 attached
, child_tidptr=0x555555af35d0) = 20581
[pid 20581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20581] setpgid(0, 0)               = 0
[pid 20581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20581] write(3, "1000", 4)         = 4
[pid 20581] close(3)                    = 0
[pid 20581] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20581] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20581] write(4, "78", 2)           = 2
[pid 20581] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20581] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20581] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20581] exit_group(0)               = ?
[pid 20581] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20581, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20582 attached
, child_tidptr=0x555555af35d0) = 20582
[pid 20582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20582] setpgid(0, 0)               = 0
[pid 20582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20582] write(3, "1000", 4)         = 4
[pid 20582] close(3)                    = 0
[pid 20582] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20582] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20582] write(4, "78", 2)           = 2
[pid 20582] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20582] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20582] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20582] exit_group(0)               = ?
[pid 20582] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20582, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20583
./strace-static-x86_64: Process 20583 attached
[pid 20583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20583] setpgid(0, 0)               = 0
[pid 20583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20583] write(3, "1000", 4)         = 4
[pid 20583] close(3)                    = 0
[pid 20583] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20583] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20583] write(4, "78", 2)           = 2
[pid 20583] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20583] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20583] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20583] exit_group(0)               = ?
[pid 20583] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20583, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20584
./strace-static-x86_64: Process 20584 attached
[pid 20584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20584] setpgid(0, 0)               = 0
[pid 20584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20584] write(3, "1000", 4)         = 4
[pid 20584] close(3)                    = 0
[pid 20584] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20584] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20584] write(4, "78", 2)           = 2
[pid 20584] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20584] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20584] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20584] exit_group(0)               = ?
[pid 20584] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20584, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20585 attached
, child_tidptr=0x555555af35d0) = 20585
[pid 20585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20585] setpgid(0, 0)               = 0
[pid 20585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20585] write(3, "1000", 4)         = 4
[pid 20585] close(3)                    = 0
[pid 20585] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20585] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20585] write(4, "78", 2)           = 2
[pid 20585] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20585] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20585] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20585] exit_group(0)               = ?
[pid 20585] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20585, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20586
./strace-static-x86_64: Process 20586 attached
[pid 20586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20586] setpgid(0, 0)               = 0
[pid 20586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20586] write(3, "1000", 4)         = 4
[pid 20586] close(3)                    = 0
[pid 20586] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20586] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20586] write(4, "78", 2)           = 2
[pid 20586] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20586] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20586] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20586] exit_group(0)               = ?
[pid 20586] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20586, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20587
./strace-static-x86_64: Process 20587 attached
[pid 20587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20587] setpgid(0, 0)               = 0
[pid 20587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20587] write(3, "1000", 4)         = 4
[pid 20587] close(3)                    = 0
[pid 20587] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20587] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20587] write(4, "78", 2)           = 2
[pid 20587] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20587] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20587] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20587] exit_group(0)               = ?
[pid 20587] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20587, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20588 attached
, child_tidptr=0x555555af35d0) = 20588
[pid 20588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20588] setpgid(0, 0)               = 0
[pid 20588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20588] write(3, "1000", 4)         = 4
[pid 20588] close(3)                    = 0
[pid 20588] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20588] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20588] write(4, "78", 2)           = 2
[pid 20588] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20588] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20588] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20588] exit_group(0)               = ?
[pid 20588] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20588, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20589 attached
, child_tidptr=0x555555af35d0) = 20589
[pid 20589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20589] setpgid(0, 0)               = 0
[pid 20589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20589] write(3, "1000", 4)         = 4
[pid 20589] close(3)                    = 0
[pid 20589] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20589] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20589] write(4, "78", 2)           = 2
[pid 20589] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20589] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20589] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20589] exit_group(0)               = ?
[pid 20589] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20589, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20590 attached
, child_tidptr=0x555555af35d0) = 20590
[pid 20590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20590] setpgid(0, 0)               = 0
[pid 20590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20590] write(3, "1000", 4)         = 4
[pid 20590] close(3)                    = 0
[pid 20590] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20590] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20590] write(4, "78", 2)           = 2
[pid 20590] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20590] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20590] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20590] exit_group(0)               = ?
[pid 20590] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20590, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20591 attached
, child_tidptr=0x555555af35d0) = 20591
[pid 20591] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20591] setpgid(0, 0)               = 0
[pid 20591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20591] write(3, "1000", 4)         = 4
[pid 20591] close(3)                    = 0
[pid 20591] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20591] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20591] write(4, "78", 2)           = 2
[pid 20591] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20591] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20591] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20591] exit_group(0)               = ?
[pid 20591] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20591, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20592 attached
, child_tidptr=0x555555af35d0) = 20592
[pid 20592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20592] setpgid(0, 0)               = 0
[pid 20592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20592] write(3, "1000", 4)         = 4
[pid 20592] close(3)                    = 0
[pid 20592] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20592] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20592] write(4, "78", 2)           = 2
[pid 20592] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20592] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20592] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20592] exit_group(0)               = ?
[pid 20592] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20592, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20593
./strace-static-x86_64: Process 20593 attached
[pid 20593] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20593] setpgid(0, 0)               = 0
[pid 20593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20593] write(3, "1000", 4)         = 4
[pid 20593] close(3)                    = 0
[pid 20593] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20593] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20593] write(4, "78", 2)           = 2
[pid 20593] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20593] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20593] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20593] exit_group(0)               = ?
[pid 20593] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20593, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20594 attached
, child_tidptr=0x555555af35d0) = 20594
[pid 20594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20594] setpgid(0, 0)               = 0
[pid 20594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20594] write(3, "1000", 4)         = 4
[pid 20594] close(3)                    = 0
[pid 20594] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20594] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20594] write(4, "78", 2)           = 2
[pid 20594] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20594] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20594] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20594] exit_group(0)               = ?
[pid 20594] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20594, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20595 attached
, child_tidptr=0x555555af35d0) = 20595
[pid 20595] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20595] setpgid(0, 0)               = 0
[pid 20595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20595] write(3, "1000", 4)         = 4
[pid 20595] close(3)                    = 0
[pid 20595] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20595] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20595] write(4, "78", 2)           = 2
[pid 20595] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20595] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20595] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20595] exit_group(0)               = ?
[pid 20595] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20595, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20596 attached
, child_tidptr=0x555555af35d0) = 20596
[pid 20596] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20596] setpgid(0, 0)               = 0
[pid 20596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20596] write(3, "1000", 4)         = 4
[pid 20596] close(3)                    = 0
[pid 20596] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20596] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20596] write(4, "78", 2)           = 2
[pid 20596] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20596] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20596] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20596] exit_group(0)               = ?
[pid 20596] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20596, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20597
./strace-static-x86_64: Process 20597 attached
[pid 20597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20597] setpgid(0, 0)               = 0
[pid 20597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20597] write(3, "1000", 4)         = 4
[pid 20597] close(3)                    = 0
[pid 20597] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20597] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20597] write(4, "78", 2)           = 2
[pid 20597] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20597] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20597] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20597] exit_group(0)               = ?
[pid 20597] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20597, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20598 attached
, child_tidptr=0x555555af35d0) = 20598
[pid 20598] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20598] setpgid(0, 0)               = 0
[pid 20598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20598] write(3, "1000", 4)         = 4
[pid 20598] close(3)                    = 0
[pid 20598] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20598] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20598] write(4, "78", 2)           = 2
[pid 20598] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20598] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20598] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20598] exit_group(0)               = ?
[pid 20598] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20598, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20599 attached
, child_tidptr=0x555555af35d0) = 20599
[pid 20599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20599] setpgid(0, 0)               = 0
[pid 20599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20599] write(3, "1000", 4)         = 4
[pid 20599] close(3)                    = 0
[pid 20599] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20599] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20599] write(4, "78", 2)           = 2
[pid 20599] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20599] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20599] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20599] exit_group(0)               = ?
[pid 20599] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20599, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20600 attached
, child_tidptr=0x555555af35d0) = 20600
[pid 20600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20600] setpgid(0, 0)               = 0
[pid 20600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20600] write(3, "1000", 4)         = 4
[pid 20600] close(3)                    = 0
[pid 20600] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20600] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20600] write(4, "78", 2)           = 2
[pid 20600] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20600] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20600] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20600] exit_group(0)               = ?
[pid 20600] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20600, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20601 attached
, child_tidptr=0x555555af35d0) = 20601
[pid 20601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20601] setpgid(0, 0)               = 0
[pid 20601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20601] write(3, "1000", 4)         = 4
[pid 20601] close(3)                    = 0
[pid 20601] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20601] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20601] write(4, "78", 2)           = 2
[pid 20601] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20601] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20601] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20601] exit_group(0)               = ?
[pid 20601] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20601, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20602
./strace-static-x86_64: Process 20602 attached
[pid 20602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20602] setpgid(0, 0)               = 0
[pid 20602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20602] write(3, "1000", 4)         = 4
[pid 20602] close(3)                    = 0
[pid 20602] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20602] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20602] write(4, "78", 2)           = 2
[pid 20602] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20602] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20602] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20602] exit_group(0)               = ?
[pid 20602] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20602, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20603
./strace-static-x86_64: Process 20603 attached
[pid 20603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20603] setpgid(0, 0)               = 0
[pid 20603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20603] write(3, "1000", 4)         = 4
[pid 20603] close(3)                    = 0
[pid 20603] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20603] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20603] write(4, "78", 2)           = 2
[pid 20603] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20603] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20603] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20603] exit_group(0)               = ?
[pid 20603] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20603, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20604
./strace-static-x86_64: Process 20604 attached
[pid 20604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20604] setpgid(0, 0)               = 0
[pid 20604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20604] write(3, "1000", 4)         = 4
[pid 20604] close(3)                    = 0
[pid 20604] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20604] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20604] write(4, "78", 2)           = 2
[pid 20604] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20604] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20604] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20604] exit_group(0)               = ?
[pid 20604] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20604, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20605
./strace-static-x86_64: Process 20605 attached
[pid 20605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20605] setpgid(0, 0)               = 0
[pid 20605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20605] write(3, "1000", 4)         = 4
[pid 20605] close(3)                    = 0
[pid 20605] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20605] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20605] write(4, "78", 2)           = 2
[pid 20605] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20605] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20605] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20605] exit_group(0)               = ?
[pid 20605] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20605, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20606
./strace-static-x86_64: Process 20606 attached
[pid 20606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20606] setpgid(0, 0)               = 0
[pid 20606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20606] write(3, "1000", 4)         = 4
[pid 20606] close(3)                    = 0
[pid 20606] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20606] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20606] write(4, "78", 2)           = 2
[pid 20606] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20606] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20606] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20606] exit_group(0)               = ?
[pid 20606] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20606, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20607 attached
, child_tidptr=0x555555af35d0) = 20607
[pid 20607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20607] setpgid(0, 0)               = 0
[pid 20607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20607] write(3, "1000", 4)         = 4
[pid 20607] close(3)                    = 0
[pid 20607] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20607] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20607] write(4, "78", 2)           = 2
[pid 20607] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20607] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20607] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20607] exit_group(0)               = ?
[pid 20607] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20607, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20608 attached
, child_tidptr=0x555555af35d0) = 20608
[pid 20608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20608] setpgid(0, 0)               = 0
[pid 20608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20608] write(3, "1000", 4)         = 4
[pid 20608] close(3)                    = 0
[pid 20608] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20608] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20608] write(4, "78", 2)           = 2
[pid 20608] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20608] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20608] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20608] exit_group(0)               = ?
[pid 20608] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20608, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20609 attached
, child_tidptr=0x555555af35d0) = 20609
[pid 20609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20609] setpgid(0, 0)               = 0
[pid 20609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20609] write(3, "1000", 4)         = 4
[pid 20609] close(3)                    = 0
[pid 20609] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20609] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20609] write(4, "78", 2)           = 2
[pid 20609] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20609] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20609] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20609] exit_group(0)               = ?
[pid 20609] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20609, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20610 attached
, child_tidptr=0x555555af35d0) = 20610
[pid 20610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20610] setpgid(0, 0)               = 0
[pid 20610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20610] write(3, "1000", 4)         = 4
[pid 20610] close(3)                    = 0
[pid 20610] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20610] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20610] write(4, "78", 2)           = 2
[pid 20610] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20610] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20610] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20610] exit_group(0)               = ?
[pid 20610] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20610, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20611 attached
, child_tidptr=0x555555af35d0) = 20611
[pid 20611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20611] setpgid(0, 0)               = 0
[pid 20611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20611] write(3, "1000", 4)         = 4
[pid 20611] close(3)                    = 0
[pid 20611] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20611] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20611] write(4, "78", 2)           = 2
[pid 20611] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20611] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20611] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20611] exit_group(0)               = ?
[pid 20611] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20611, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20612 attached
, child_tidptr=0x555555af35d0) = 20612
[pid 20612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20612] setpgid(0, 0)               = 0
[pid 20612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20612] write(3, "1000", 4)         = 4
[pid 20612] close(3)                    = 0
[pid 20612] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20612] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20612] write(4, "78", 2)           = 2
[pid 20612] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20612] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20612] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20612] exit_group(0)               = ?
[pid 20612] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20612, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20613
./strace-static-x86_64: Process 20613 attached
[pid 20613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20613] setpgid(0, 0)               = 0
[pid 20613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20613] write(3, "1000", 4)         = 4
[pid 20613] close(3)                    = 0
[pid 20613] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20613] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20613] write(4, "78", 2)           = 2
[pid 20613] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20613] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20613] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20613] exit_group(0)               = ?
[pid 20613] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20613, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20614 attached
, child_tidptr=0x555555af35d0) = 20614
[pid 20614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20614] setpgid(0, 0)               = 0
[pid 20614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20614] write(3, "1000", 4)         = 4
[pid 20614] close(3)                    = 0
[pid 20614] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20614] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20614] write(4, "78", 2)           = 2
[pid 20614] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20614] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20614] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20614] exit_group(0)               = ?
[pid 20614] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20614, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20615 attached
, child_tidptr=0x555555af35d0) = 20615
[pid 20615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20615] setpgid(0, 0)               = 0
[pid 20615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20615] write(3, "1000", 4)         = 4
[pid 20615] close(3)                    = 0
[pid 20615] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20615] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20615] write(4, "78", 2)           = 2
[pid 20615] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20615] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20615] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20615] exit_group(0)               = ?
[pid 20615] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20615, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20616 attached
, child_tidptr=0x555555af35d0) = 20616
[pid 20616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20616] setpgid(0, 0)               = 0
[pid 20616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20616] write(3, "1000", 4)         = 4
[pid 20616] close(3)                    = 0
[pid 20616] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20616] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20616] write(4, "78", 2)           = 2
[pid 20616] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20616] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20616] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20616] exit_group(0)               = ?
[pid 20616] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20616, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20617 attached
, child_tidptr=0x555555af35d0) = 20617
[pid 20617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20617] setpgid(0, 0)               = 0
[pid 20617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20617] write(3, "1000", 4)         = 4
[pid 20617] close(3)                    = 0
[pid 20617] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20617] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20617] write(4, "78", 2)           = 2
[pid 20617] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20617] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20617] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20617] exit_group(0)               = ?
[pid 20617] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20617, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20618 attached
, child_tidptr=0x555555af35d0) = 20618
[pid 20618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20618] setpgid(0, 0)               = 0
[pid 20618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20618] write(3, "1000", 4)         = 4
[pid 20618] close(3)                    = 0
[pid 20618] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20618] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20618] write(4, "78", 2)           = 2
[pid 20618] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20618] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20618] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20618] exit_group(0)               = ?
[pid 20618] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20618, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20619 attached
, child_tidptr=0x555555af35d0) = 20619
[pid 20619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20619] setpgid(0, 0)               = 0
[pid 20619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20619] write(3, "1000", 4)         = 4
[pid 20619] close(3)                    = 0
[pid 20619] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20619] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20619] write(4, "78", 2)           = 2
[pid 20619] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20619] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20619] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20619] exit_group(0)               = ?
[pid 20619] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20619, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20620 attached
, child_tidptr=0x555555af35d0) = 20620
[pid 20620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20620] setpgid(0, 0)               = 0
[pid 20620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20620] write(3, "1000", 4)         = 4
[pid 20620] close(3)                    = 0
[pid 20620] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20620] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20620] write(4, "78", 2)           = 2
[pid 20620] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20620] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20620] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20620] exit_group(0)               = ?
[pid 20620] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20620, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20621 attached
, child_tidptr=0x555555af35d0) = 20621
[pid 20621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20621] setpgid(0, 0)               = 0
[pid 20621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20621] write(3, "1000", 4)         = 4
[pid 20621] close(3)                    = 0
[pid 20621] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20621] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20621] write(4, "78", 2)           = 2
[pid 20621] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20621] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20621] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20621] exit_group(0)               = ?
[pid 20621] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20621, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20622 attached
, child_tidptr=0x555555af35d0) = 20622
[pid 20622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20622] setpgid(0, 0)               = 0
[pid 20622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20622] write(3, "1000", 4)         = 4
[pid 20622] close(3)                    = 0
[pid 20622] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20622] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20622] write(4, "78", 2)           = 2
[pid 20622] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20622] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20622] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20622] exit_group(0)               = ?
[pid 20622] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20622, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20623 attached
, child_tidptr=0x555555af35d0) = 20623
[pid 20623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20623] setpgid(0, 0)               = 0
[pid 20623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20623] write(3, "1000", 4)         = 4
[pid 20623] close(3)                    = 0
[pid 20623] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20623] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20623] write(4, "78", 2)           = 2
[pid 20623] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20623] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20623] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20623] exit_group(0)               = ?
[pid 20623] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20623, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20624 attached
, child_tidptr=0x555555af35d0) = 20624
[pid 20624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20624] setpgid(0, 0)               = 0
[pid 20624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20624] write(3, "1000", 4)         = 4
[pid 20624] close(3)                    = 0
[pid 20624] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20624] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20624] write(4, "78", 2)           = 2
[pid 20624] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20624] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20624] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20624] exit_group(0)               = ?
[pid 20624] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20624, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20625
./strace-static-x86_64: Process 20625 attached
[pid 20625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20625] setpgid(0, 0)               = 0
[pid 20625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20625] write(3, "1000", 4)         = 4
[pid 20625] close(3)                    = 0
[pid 20625] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20625] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20625] write(4, "78", 2)           = 2
[pid 20625] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20625] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20625] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20625] exit_group(0)               = ?
[pid 20625] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20625, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20626 attached
, child_tidptr=0x555555af35d0) = 20626
[pid 20626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20626] setpgid(0, 0)               = 0
[pid 20626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20626] write(3, "1000", 4)         = 4
[pid 20626] close(3)                    = 0
[pid 20626] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20626] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20626] write(4, "78", 2)           = 2
[pid 20626] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20626] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20626] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20626] exit_group(0)               = ?
[pid 20626] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20626, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20627
./strace-static-x86_64: Process 20627 attached
[pid 20627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20627] setpgid(0, 0)               = 0
[pid 20627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20627] write(3, "1000", 4)         = 4
[pid 20627] close(3)                    = 0
[pid 20627] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20627] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20627] write(4, "78", 2)           = 2
[pid 20627] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20627] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20627] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20627] exit_group(0)               = ?
[pid 20627] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20627, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20628 attached
, child_tidptr=0x555555af35d0) = 20628
[pid 20628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20628] setpgid(0, 0)               = 0
[pid 20628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20628] write(3, "1000", 4)         = 4
[pid 20628] close(3)                    = 0
[pid 20628] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20628] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20628] write(4, "78", 2)           = 2
[pid 20628] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20628] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20628] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20628] exit_group(0)               = ?
[pid 20628] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20628, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20629
./strace-static-x86_64: Process 20629 attached
[pid 20629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20629] setpgid(0, 0)               = 0
[pid 20629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20629] write(3, "1000", 4)         = 4
[pid 20629] close(3)                    = 0
[pid 20629] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20629] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20629] write(4, "78", 2)           = 2
[pid 20629] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20629] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20629] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20629] exit_group(0)               = ?
[pid 20629] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20629, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20630
./strace-static-x86_64: Process 20630 attached
[pid 20630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20630] setpgid(0, 0)               = 0
[pid 20630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20630] write(3, "1000", 4)         = 4
[pid 20630] close(3)                    = 0
[pid 20630] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20630] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20630] write(4, "78", 2)           = 2
[pid 20630] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20630] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20630] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20630] exit_group(0)               = ?
[pid 20630] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20630, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20631
./strace-static-x86_64: Process 20631 attached
[pid 20631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20631] setpgid(0, 0)               = 0
[pid 20631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20631] write(3, "1000", 4)         = 4
[pid 20631] close(3)                    = 0
[pid 20631] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20631] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20631] write(4, "78", 2)           = 2
[pid 20631] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20631] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20631] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20631] exit_group(0)               = ?
[pid 20631] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20631, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20632 attached
, child_tidptr=0x555555af35d0) = 20632
[pid 20632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20632] setpgid(0, 0)               = 0
[pid 20632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20632] write(3, "1000", 4)         = 4
[pid 20632] close(3)                    = 0
[pid 20632] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20632] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20632] write(4, "78", 2)           = 2
[pid 20632] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20632] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20632] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20632] exit_group(0)               = ?
[pid 20632] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20632, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20633 attached
, child_tidptr=0x555555af35d0) = 20633
[pid 20633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20633] setpgid(0, 0)               = 0
[pid 20633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20633] write(3, "1000", 4)         = 4
[pid 20633] close(3)                    = 0
[pid 20633] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20633] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20633] write(4, "78", 2)           = 2
[pid 20633] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20633] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20633] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20633] exit_group(0)               = ?
[pid 20633] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20633, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20634 attached
, child_tidptr=0x555555af35d0) = 20634
[pid 20634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20634] setpgid(0, 0)               = 0
[pid 20634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20634] write(3, "1000", 4)         = 4
[pid 20634] close(3)                    = 0
[pid 20634] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20634] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20634] write(4, "78", 2)           = 2
[pid 20634] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20634] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20634] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20634] exit_group(0)               = ?
[pid 20634] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20634, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20635
./strace-static-x86_64: Process 20635 attached
[pid 20635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20635] setpgid(0, 0)               = 0
[pid 20635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20635] write(3, "1000", 4)         = 4
[pid 20635] close(3)                    = 0
[pid 20635] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20635] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20635] write(4, "78", 2)           = 2
[pid 20635] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20635] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20635] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20635] exit_group(0)               = ?
[pid 20635] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20635, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20636 attached
, child_tidptr=0x555555af35d0) = 20636
[pid 20636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20636] setpgid(0, 0)               = 0
[pid 20636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20636] write(3, "1000", 4)         = 4
[pid 20636] close(3)                    = 0
[pid 20636] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20636] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20636] write(4, "78", 2)           = 2
[pid 20636] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20636] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20636] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20636] exit_group(0)               = ?
[pid 20636] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20636, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20637 attached
, child_tidptr=0x555555af35d0) = 20637
[pid 20637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20637] setpgid(0, 0)               = 0
[pid 20637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20637] write(3, "1000", 4)         = 4
[pid 20637] close(3)                    = 0
[pid 20637] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20637] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20637] write(4, "78", 2)           = 2
[pid 20637] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20637] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20637] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20637] exit_group(0)               = ?
[pid 20637] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20637, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20638
./strace-static-x86_64: Process 20638 attached
[pid 20638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20638] setpgid(0, 0)               = 0
[pid 20638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20638] write(3, "1000", 4)         = 4
[pid 20638] close(3)                    = 0
[pid 20638] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20638] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20638] write(4, "78", 2)           = 2
[pid 20638] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20638] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20638] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20638] exit_group(0)               = ?
[pid 20638] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20638, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20639
./strace-static-x86_64: Process 20639 attached
[pid 20639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20639] setpgid(0, 0)               = 0
[pid 20639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20639] write(3, "1000", 4)         = 4
[pid 20639] close(3)                    = 0
[pid 20639] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20639] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20639] write(4, "78", 2)           = 2
[pid 20639] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20639] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20639] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20639] exit_group(0)               = ?
[pid 20639] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20639, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20640 attached
, child_tidptr=0x555555af35d0) = 20640
[pid 20640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20640] setpgid(0, 0)               = 0
[pid 20640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20640] write(3, "1000", 4)         = 4
[pid 20640] close(3)                    = 0
[pid 20640] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20640] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20640] write(4, "78", 2)           = 2
[pid 20640] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20640] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20640] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20640] exit_group(0)               = ?
[pid 20640] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20640, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20641
./strace-static-x86_64: Process 20641 attached
[pid 20641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20641] setpgid(0, 0)               = 0
[pid 20641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20641] write(3, "1000", 4)         = 4
[pid 20641] close(3)                    = 0
[pid 20641] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20641] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20641] write(4, "78", 2)           = 2
[pid 20641] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20641] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20641] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20641] exit_group(0)               = ?
[pid 20641] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20641, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20642 attached
, child_tidptr=0x555555af35d0) = 20642
[pid 20642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20642] setpgid(0, 0)               = 0
[pid 20642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20642] write(3, "1000", 4)         = 4
[pid 20642] close(3)                    = 0
[pid 20642] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20642] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20642] write(4, "78", 2)           = 2
[pid 20642] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20642] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20642] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20642] exit_group(0)               = ?
[pid 20642] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20642, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20643 attached
, child_tidptr=0x555555af35d0) = 20643
[pid 20643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20643] setpgid(0, 0)               = 0
[pid 20643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20643] write(3, "1000", 4)         = 4
[pid 20643] close(3)                    = 0
[pid 20643] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20643] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20643] write(4, "78", 2)           = 2
[pid 20643] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20643] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20643] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20643] exit_group(0)               = ?
[pid 20643] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20643, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20644
./strace-static-x86_64: Process 20644 attached
[pid 20644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20644] setpgid(0, 0)               = 0
[pid 20644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20644] write(3, "1000", 4)         = 4
[pid 20644] close(3)                    = 0
[pid 20644] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20644] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20644] write(4, "78", 2)           = 2
[pid 20644] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20644] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20644] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20644] exit_group(0)               = ?
[pid 20644] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20644, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20645 attached
, child_tidptr=0x555555af35d0) = 20645
[pid 20645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20645] setpgid(0, 0)               = 0
[pid 20645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20645] write(3, "1000", 4)         = 4
[pid 20645] close(3)                    = 0
[pid 20645] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20645] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20645] write(4, "78", 2)           = 2
[pid 20645] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20645] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20645] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20645] exit_group(0)               = ?
[pid 20645] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20645, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20646
./strace-static-x86_64: Process 20646 attached
[pid 20646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20646] setpgid(0, 0)               = 0
[pid 20646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20646] write(3, "1000", 4)         = 4
[pid 20646] close(3)                    = 0
[pid 20646] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20646] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20646] write(4, "78", 2)           = 2
[pid 20646] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20646] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20646] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20646] exit_group(0)               = ?
[pid 20646] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20646, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20647 attached
, child_tidptr=0x555555af35d0) = 20647
[pid 20647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20647] setpgid(0, 0)               = 0
[pid 20647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20647] write(3, "1000", 4)         = 4
[pid 20647] close(3)                    = 0
[pid 20647] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20647] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20647] write(4, "78", 2)           = 2
[pid 20647] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20647] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20647] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20647] exit_group(0)               = ?
[pid 20647] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20647, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20648 attached
, child_tidptr=0x555555af35d0) = 20648
[pid 20648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20648] setpgid(0, 0)               = 0
[pid 20648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20648] write(3, "1000", 4)         = 4
[pid 20648] close(3)                    = 0
[pid 20648] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20648] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20648] write(4, "78", 2)           = 2
[pid 20648] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20648] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20648] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20648] exit_group(0)               = ?
[pid 20648] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20648, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20649 attached
, child_tidptr=0x555555af35d0) = 20649
[pid 20649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20649] setpgid(0, 0)               = 0
[pid 20649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20649] write(3, "1000", 4)         = 4
[pid 20649] close(3)                    = 0
[pid 20649] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20649] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20649] write(4, "78", 2)           = 2
[pid 20649] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20649] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20649] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20649] exit_group(0)               = ?
[pid 20649] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20649, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20650 attached
, child_tidptr=0x555555af35d0) = 20650
[pid 20650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20650] setpgid(0, 0)               = 0
[pid 20650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20650] write(3, "1000", 4)         = 4
[pid 20650] close(3)                    = 0
[pid 20650] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20650] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20650] write(4, "78", 2)           = 2
[pid 20650] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20650] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20650] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20650] exit_group(0)               = ?
[pid 20650] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20650, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20651
./strace-static-x86_64: Process 20651 attached
[pid 20651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20651] setpgid(0, 0)               = 0
[pid 20651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20651] write(3, "1000", 4)         = 4
[pid 20651] close(3)                    = 0
[pid 20651] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20651] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20651] write(4, "78", 2)           = 2
[pid 20651] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20651] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20651] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20651] exit_group(0)               = ?
[pid 20651] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20651, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20652
./strace-static-x86_64: Process 20652 attached
[pid 20652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20652] setpgid(0, 0)               = 0
[pid 20652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20652] write(3, "1000", 4)         = 4
[pid 20652] close(3)                    = 0
[pid 20652] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20652] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20652] write(4, "78", 2)           = 2
[pid 20652] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20652] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20652] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20652] exit_group(0)               = ?
[pid 20652] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20652, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20653 attached
, child_tidptr=0x555555af35d0) = 20653
[pid 20653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20653] setpgid(0, 0)               = 0
[pid 20653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20653] write(3, "1000", 4)         = 4
[pid 20653] close(3)                    = 0
[pid 20653] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20653] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20653] write(4, "78", 2)           = 2
[pid 20653] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20653] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20653] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20653] exit_group(0)               = ?
[pid 20653] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20653, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20654 attached
, child_tidptr=0x555555af35d0) = 20654
[pid 20654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20654] setpgid(0, 0)               = 0
[pid 20654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20654] write(3, "1000", 4)         = 4
[pid 20654] close(3)                    = 0
[pid 20654] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20654] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20654] write(4, "78", 2)           = 2
[pid 20654] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20654] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20654] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20654] exit_group(0)               = ?
[pid 20654] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20654, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20655 attached
, child_tidptr=0x555555af35d0) = 20655
[pid 20655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20655] setpgid(0, 0)               = 0
[pid 20655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20655] write(3, "1000", 4)         = 4
[pid 20655] close(3)                    = 0
[pid 20655] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20655] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20655] write(4, "78", 2)           = 2
[pid 20655] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20655] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20655] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20655] exit_group(0)               = ?
[pid 20655] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20655, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20656 attached
, child_tidptr=0x555555af35d0) = 20656
[pid 20656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20656] setpgid(0, 0)               = 0
[pid 20656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20656] write(3, "1000", 4)         = 4
[pid 20656] close(3)                    = 0
[pid 20656] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20656] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20656] write(4, "78", 2)           = 2
[pid 20656] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20656] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20656] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20656] exit_group(0)               = ?
[pid 20656] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20656, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20657
./strace-static-x86_64: Process 20657 attached
[pid 20657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20657] setpgid(0, 0)               = 0
[pid 20657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20657] write(3, "1000", 4)         = 4
[pid 20657] close(3)                    = 0
[pid 20657] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20657] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20657] write(4, "78", 2)           = 2
[pid 20657] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20657] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20657] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20657] exit_group(0)               = ?
[pid 20657] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20657, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20658
./strace-static-x86_64: Process 20658 attached
[pid 20658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20658] setpgid(0, 0)               = 0
[pid 20658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20658] write(3, "1000", 4)         = 4
[pid 20658] close(3)                    = 0
[pid 20658] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20658] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20658] write(4, "78", 2)           = 2
[pid 20658] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20658] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20658] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20658] exit_group(0)               = ?
[pid 20658] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20658, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20659 attached
, child_tidptr=0x555555af35d0) = 20659
[pid 20659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20659] setpgid(0, 0)               = 0
[pid 20659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20659] write(3, "1000", 4)         = 4
[pid 20659] close(3)                    = 0
[pid 20659] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20659] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20659] write(4, "78", 2)           = 2
[pid 20659] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20659] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20659] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20659] exit_group(0)               = ?
[pid 20659] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20659, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20660 attached
, child_tidptr=0x555555af35d0) = 20660
[pid 20660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20660] setpgid(0, 0)               = 0
[pid 20660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20660] write(3, "1000", 4)         = 4
[pid 20660] close(3)                    = 0
[pid 20660] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20660] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20660] write(4, "78", 2)           = 2
[pid 20660] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20660] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20660] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20660] exit_group(0)               = ?
[pid 20660] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20660, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20661 attached
, child_tidptr=0x555555af35d0) = 20661
[pid 20661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20661] setpgid(0, 0)               = 0
[pid 20661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20661] write(3, "1000", 4)         = 4
[pid 20661] close(3)                    = 0
[pid 20661] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20661] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20661] write(4, "78", 2)           = 2
[pid 20661] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20661] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20661] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20661] exit_group(0)               = ?
[pid 20661] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20661, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20662 attached
, child_tidptr=0x555555af35d0) = 20662
[pid 20662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20662] setpgid(0, 0)               = 0
[pid 20662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20662] write(3, "1000", 4)         = 4
[pid 20662] close(3)                    = 0
[pid 20662] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20662] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20662] write(4, "78", 2)           = 2
[pid 20662] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20662] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20662] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20662] exit_group(0)               = ?
[pid 20662] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20662, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20663 attached
, child_tidptr=0x555555af35d0) = 20663
[pid 20663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20663] setpgid(0, 0)               = 0
[pid 20663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20663] write(3, "1000", 4)         = 4
[pid 20663] close(3)                    = 0
[pid 20663] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20663] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20663] write(4, "78", 2)           = 2
[pid 20663] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20663] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20663] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20663] exit_group(0)               = ?
[pid 20663] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20663, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20664
./strace-static-x86_64: Process 20664 attached
[pid 20664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20664] setpgid(0, 0)               = 0
[pid 20664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20664] write(3, "1000", 4)         = 4
[pid 20664] close(3)                    = 0
[pid 20664] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20664] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20664] write(4, "78", 2)           = 2
[pid 20664] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20664] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20664] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20664] exit_group(0)               = ?
[pid 20664] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20664, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20665 attached
, child_tidptr=0x555555af35d0) = 20665
[pid 20665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20665] setpgid(0, 0)               = 0
[pid 20665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20665] write(3, "1000", 4)         = 4
[pid 20665] close(3)                    = 0
[pid 20665] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20665] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20665] write(4, "78", 2)           = 2
[pid 20665] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20665] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20665] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20665] exit_group(0)               = ?
[pid 20665] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20665, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20666 attached
, child_tidptr=0x555555af35d0) = 20666
[pid 20666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20666] setpgid(0, 0)               = 0
[pid 20666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20666] write(3, "1000", 4)         = 4
[pid 20666] close(3)                    = 0
[pid 20666] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20666] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20666] write(4, "78", 2)           = 2
[pid 20666] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20666] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20666] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20666] exit_group(0)               = ?
[pid 20666] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20666, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20667 attached
, child_tidptr=0x555555af35d0) = 20667
[pid 20667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20667] setpgid(0, 0)               = 0
[pid 20667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20667] write(3, "1000", 4)         = 4
[pid 20667] close(3)                    = 0
[pid 20667] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20667] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20667] write(4, "78", 2)           = 2
[pid 20667] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20667] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20667] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20667] exit_group(0)               = ?
[pid 20667] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20667, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20668 attached
, child_tidptr=0x555555af35d0) = 20668
[pid 20668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20668] setpgid(0, 0)               = 0
[pid 20668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20668] write(3, "1000", 4)         = 4
[pid 20668] close(3)                    = 0
[pid 20668] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20668] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20668] write(4, "78", 2)           = 2
[pid 20668] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20668] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20668] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20668] exit_group(0)               = ?
[pid 20668] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20668, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20669 attached
, child_tidptr=0x555555af35d0) = 20669
[pid 20669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20669] setpgid(0, 0)               = 0
[pid 20669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20669] write(3, "1000", 4)         = 4
[pid 20669] close(3)                    = 0
[pid 20669] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20669] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20669] write(4, "78", 2)           = 2
[pid 20669] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20669] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20669] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20669] exit_group(0)               = ?
[pid 20669] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20669, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20670 attached
, child_tidptr=0x555555af35d0) = 20670
[pid 20670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20670] setpgid(0, 0)               = 0
[pid 20670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20670] write(3, "1000", 4)         = 4
[pid 20670] close(3)                    = 0
[pid 20670] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20670] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20670] write(4, "78", 2)           = 2
[pid 20670] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20670] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20670] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20670] exit_group(0)               = ?
[pid 20670] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20670, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20671
./strace-static-x86_64: Process 20671 attached
[pid 20671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20671] setpgid(0, 0)               = 0
[pid 20671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20671] write(3, "1000", 4)         = 4
[pid 20671] close(3)                    = 0
[pid 20671] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20671] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20671] write(4, "78", 2)           = 2
[pid 20671] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20671] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20671] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20671] exit_group(0)               = ?
[pid 20671] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20671, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20672 attached
, child_tidptr=0x555555af35d0) = 20672
[pid 20672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20672] setpgid(0, 0)               = 0
[pid 20672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20672] write(3, "1000", 4)         = 4
[pid 20672] close(3)                    = 0
[pid 20672] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20672] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20672] write(4, "78", 2)           = 2
[pid 20672] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20672] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20672] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20672] exit_group(0)               = ?
[pid 20672] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20672, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20673 attached
, child_tidptr=0x555555af35d0) = 20673
[pid 20673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20673] setpgid(0, 0)               = 0
[pid 20673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20673] write(3, "1000", 4)         = 4
[pid 20673] close(3)                    = 0
[pid 20673] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20673] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20673] write(4, "78", 2)           = 2
[pid 20673] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20673] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20673] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20673] exit_group(0)               = ?
[pid 20673] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20673, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20674 attached
, child_tidptr=0x555555af35d0) = 20674
[pid 20674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20674] setpgid(0, 0)               = 0
[pid 20674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20674] write(3, "1000", 4)         = 4
[pid 20674] close(3)                    = 0
[pid 20674] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20674] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20674] write(4, "78", 2)           = 2
[pid 20674] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20674] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20674] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20674] exit_group(0)               = ?
[pid 20674] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20674, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20675 attached
, child_tidptr=0x555555af35d0) = 20675
[pid 20675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20675] setpgid(0, 0)               = 0
[pid 20675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20675] write(3, "1000", 4)         = 4
[pid 20675] close(3)                    = 0
[pid 20675] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20675] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20675] write(4, "78", 2)           = 2
[pid 20675] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20675] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20675] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20675] exit_group(0)               = ?
[pid 20675] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20675, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20676 attached
, child_tidptr=0x555555af35d0) = 20676
[pid 20676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20676] setpgid(0, 0)               = 0
[pid 20676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20676] write(3, "1000", 4)         = 4
[pid 20676] close(3)                    = 0
[pid 20676] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20676] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20676] write(4, "78", 2)           = 2
[pid 20676] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20676] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20676] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20676] exit_group(0)               = ?
[pid 20676] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20676, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20677
./strace-static-x86_64: Process 20677 attached
[pid 20677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20677] setpgid(0, 0)               = 0
[pid 20677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20677] write(3, "1000", 4)         = 4
[pid 20677] close(3)                    = 0
[pid 20677] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20677] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20677] write(4, "78", 2)           = 2
[pid 20677] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20677] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20677] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20677] exit_group(0)               = ?
[pid 20677] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20677, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20678
./strace-static-x86_64: Process 20678 attached
[pid 20678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20678] setpgid(0, 0)               = 0
[pid 20678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20678] write(3, "1000", 4)         = 4
[pid 20678] close(3)                    = 0
[pid 20678] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20678] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20678] write(4, "78", 2)           = 2
[pid 20678] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20678] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20678] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20678] exit_group(0)               = ?
[pid 20678] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20678, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20679 attached
, child_tidptr=0x555555af35d0) = 20679
[pid 20679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20679] setpgid(0, 0)               = 0
[pid 20679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20679] write(3, "1000", 4)         = 4
[pid 20679] close(3)                    = 0
[pid 20679] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20679] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20679] write(4, "78", 2)           = 2
[pid 20679] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20679] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20679] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20679] exit_group(0)               = ?
[pid 20679] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20679, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20680 attached
, child_tidptr=0x555555af35d0) = 20680
[pid 20680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20680] setpgid(0, 0)               = 0
[pid 20680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20680] write(3, "1000", 4)         = 4
[pid 20680] close(3)                    = 0
[pid 20680] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20680] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20680] write(4, "78", 2)           = 2
[pid 20680] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20680] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20680] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20680] exit_group(0)               = ?
[pid 20680] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20680, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20681 attached
, child_tidptr=0x555555af35d0) = 20681
[pid 20681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20681] setpgid(0, 0)               = 0
[pid 20681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20681] write(3, "1000", 4)         = 4
[pid 20681] close(3)                    = 0
[pid 20681] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20681] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20681] write(4, "78", 2)           = 2
[pid 20681] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20681] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20681] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20681] exit_group(0)               = ?
[pid 20681] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20681, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20682 attached
, child_tidptr=0x555555af35d0) = 20682
[pid 20682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20682] setpgid(0, 0)               = 0
[pid 20682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20682] write(3, "1000", 4)         = 4
[pid 20682] close(3)                    = 0
[pid 20682] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20682] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20682] write(4, "78", 2)           = 2
[pid 20682] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20682] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20682] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20682] exit_group(0)               = ?
[pid 20682] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20682, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20683 attached
, child_tidptr=0x555555af35d0) = 20683
[pid 20683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20683] setpgid(0, 0)               = 0
[pid 20683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20683] write(3, "1000", 4)         = 4
[pid 20683] close(3)                    = 0
[pid 20683] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20683] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20683] write(4, "78", 2)           = 2
[pid 20683] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20683] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20683] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20683] exit_group(0)               = ?
[pid 20683] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20683, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20684 attached
 <unfinished ...>
[pid 20684] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 20684
[pid 20684] <... prctl resumed>)        = 0
[pid 20684] setpgid(0, 0)               = 0
[pid 20684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20684] write(3, "1000", 4)         = 4
[pid 20684] close(3)                    = 0
[pid 20684] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20684] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20684] write(4, "78", 2)           = 2
[pid 20684] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20684] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20684] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20684] exit_group(0)               = ?
[pid 20684] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20684, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20685
./strace-static-x86_64: Process 20685 attached
[pid 20685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20685] setpgid(0, 0)               = 0
[pid 20685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20685] write(3, "1000", 4)         = 4
[pid 20685] close(3)                    = 0
[pid 20685] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20685] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20685] write(4, "78", 2)           = 2
[pid 20685] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20685] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20685] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20685] exit_group(0)               = ?
[pid 20685] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20685, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20686 attached
, child_tidptr=0x555555af35d0) = 20686
[pid 20686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20686] setpgid(0, 0)               = 0
[pid 20686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20686] write(3, "1000", 4)         = 4
[pid 20686] close(3)                    = 0
[pid 20686] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20686] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20686] write(4, "78", 2)           = 2
[pid 20686] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20686] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20686] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20686] exit_group(0)               = ?
[pid 20686] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20686, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20687 attached
, child_tidptr=0x555555af35d0) = 20687
[pid 20687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20687] setpgid(0, 0)               = 0
[pid 20687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20687] write(3, "1000", 4)         = 4
[pid 20687] close(3)                    = 0
[pid 20687] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20687] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20687] write(4, "78", 2)           = 2
[pid 20687] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20687] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20687] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20687] exit_group(0)               = ?
[pid 20687] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20687, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20688
./strace-static-x86_64: Process 20688 attached
[pid 20688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20688] setpgid(0, 0)               = 0
[pid 20688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20688] write(3, "1000", 4)         = 4
[pid 20688] close(3)                    = 0
[pid 20688] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20688] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20688] write(4, "78", 2)           = 2
[pid 20688] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20688] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20688] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20688] exit_group(0)               = ?
[pid 20688] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20688, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20689 attached
, child_tidptr=0x555555af35d0) = 20689
[pid 20689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20689] setpgid(0, 0)               = 0
[pid 20689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20689] write(3, "1000", 4)         = 4
[pid 20689] close(3)                    = 0
[pid 20689] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20689] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20689] write(4, "78", 2)           = 2
[pid 20689] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20689] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20689] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20689] exit_group(0)               = ?
[pid 20689] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20689, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20690 attached
, child_tidptr=0x555555af35d0) = 20690
[pid 20690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20690] setpgid(0, 0)               = 0
[pid 20690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20690] write(3, "1000", 4)         = 4
[pid 20690] close(3)                    = 0
[pid 20690] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20690] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20690] write(4, "78", 2)           = 2
[pid 20690] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20690] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20690] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20690] exit_group(0)               = ?
[pid 20690] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20690, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20691 attached
, child_tidptr=0x555555af35d0) = 20691
[pid 20691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20691] setpgid(0, 0)               = 0
[pid 20691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20691] write(3, "1000", 4)         = 4
[pid 20691] close(3)                    = 0
[pid 20691] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20691] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20691] write(4, "78", 2)           = 2
[pid 20691] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20691] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20691] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20691] exit_group(0)               = ?
[pid 20691] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20691, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20692
./strace-static-x86_64: Process 20692 attached
[pid 20692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20692] setpgid(0, 0)               = 0
[pid 20692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20692] write(3, "1000", 4)         = 4
[pid 20692] close(3)                    = 0
[pid 20692] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20692] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20692] write(4, "78", 2)           = 2
[pid 20692] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20692] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20692] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20692] exit_group(0)               = ?
[pid 20692] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20692, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20693 attached
, child_tidptr=0x555555af35d0) = 20693
[pid 20693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20693] setpgid(0, 0)               = 0
[pid 20693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20693] write(3, "1000", 4)         = 4
[pid 20693] close(3)                    = 0
[pid 20693] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20693] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20693] write(4, "78", 2)           = 2
[pid 20693] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20693] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20693] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20693] exit_group(0)               = ?
[pid 20693] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20693, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20694
./strace-static-x86_64: Process 20694 attached
[pid 20694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20694] setpgid(0, 0)               = 0
[pid 20694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20694] write(3, "1000", 4)         = 4
[pid 20694] close(3)                    = 0
[pid 20694] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20694] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20694] write(4, "78", 2)           = 2
[pid 20694] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20694] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20694] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20694] exit_group(0)               = ?
[pid 20694] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20694, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20695 attached
, child_tidptr=0x555555af35d0) = 20695
[pid 20695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20695] setpgid(0, 0)               = 0
[pid 20695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20695] write(3, "1000", 4)         = 4
[pid 20695] close(3)                    = 0
[pid 20695] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20695] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20695] write(4, "78", 2)           = 2
[pid 20695] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20695] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20695] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20695] exit_group(0)               = ?
[pid 20695] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20695, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20696
./strace-static-x86_64: Process 20696 attached
[pid 20696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20696] setpgid(0, 0)               = 0
[pid 20696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20696] write(3, "1000", 4)         = 4
[pid 20696] close(3)                    = 0
[pid 20696] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20696] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20696] write(4, "78", 2)           = 2
[pid 20696] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20696] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20696] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20696] exit_group(0)               = ?
[pid 20696] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20696, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20697 attached
, child_tidptr=0x555555af35d0) = 20697
[pid 20697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20697] setpgid(0, 0)               = 0
[pid 20697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20697] write(3, "1000", 4)         = 4
[pid 20697] close(3)                    = 0
[pid 20697] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20697] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20697] write(4, "78", 2)           = 2
[pid 20697] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20697] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20697] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20697] exit_group(0)               = ?
[pid 20697] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20697, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20698 attached
, child_tidptr=0x555555af35d0) = 20698
[pid 20698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20698] setpgid(0, 0)               = 0
[pid 20698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20698] write(3, "1000", 4)         = 4
[pid 20698] close(3)                    = 0
[pid 20698] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20698] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20698] write(4, "78", 2)           = 2
[pid 20698] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20698] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20698] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20698] exit_group(0)               = ?
[pid 20698] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20698, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20699 attached
, child_tidptr=0x555555af35d0) = 20699
[pid 20699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20699] setpgid(0, 0)               = 0
[pid 20699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20699] write(3, "1000", 4)         = 4
[pid 20699] close(3)                    = 0
[pid 20699] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20699] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20699] write(4, "78", 2)           = 2
[pid 20699] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20699] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20699] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20699] exit_group(0)               = ?
[pid 20699] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20699, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20700 attached
, child_tidptr=0x555555af35d0) = 20700
[pid 20700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20700] setpgid(0, 0)               = 0
[pid 20700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20700] write(3, "1000", 4)         = 4
[pid 20700] close(3)                    = 0
[pid 20700] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20700] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20700] write(4, "78", 2)           = 2
[pid 20700] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20700] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20700] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20700] exit_group(0)               = ?
[pid 20700] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20700, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20701
./strace-static-x86_64: Process 20701 attached
[pid 20701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20701] setpgid(0, 0)               = 0
[pid 20701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20701] write(3, "1000", 4)         = 4
[pid 20701] close(3)                    = 0
[pid 20701] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20701] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20701] write(4, "78", 2)           = 2
[pid 20701] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20701] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20701] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20701] exit_group(0)               = ?
[pid 20701] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20701, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20702 attached
, child_tidptr=0x555555af35d0) = 20702
[pid 20702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20702] setpgid(0, 0)               = 0
[pid 20702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20702] write(3, "1000", 4)         = 4
[pid 20702] close(3)                    = 0
[pid 20702] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20702] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20702] write(4, "78", 2)           = 2
[pid 20702] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20702] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20702] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20702] exit_group(0)               = ?
[pid 20702] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20702, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20703 attached
, child_tidptr=0x555555af35d0) = 20703
[pid 20703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20703] setpgid(0, 0)               = 0
[pid 20703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20703] write(3, "1000", 4)         = 4
[pid 20703] close(3)                    = 0
[pid 20703] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20703] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20703] write(4, "78", 2)           = 2
[pid 20703] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20703] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20703] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20703] exit_group(0)               = ?
[pid 20703] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20703, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20704
./strace-static-x86_64: Process 20704 attached
[pid 20704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20704] setpgid(0, 0)               = 0
[pid 20704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20704] write(3, "1000", 4)         = 4
[pid 20704] close(3)                    = 0
[pid 20704] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20704] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20704] write(4, "78", 2)           = 2
[pid 20704] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20704] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20704] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20704] exit_group(0)               = ?
[pid 20704] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20704, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20705 attached
, child_tidptr=0x555555af35d0) = 20705
[pid 20705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20705] setpgid(0, 0)               = 0
[pid 20705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20705] write(3, "1000", 4)         = 4
[pid 20705] close(3)                    = 0
[pid 20705] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20705] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20705] write(4, "78", 2)           = 2
[pid 20705] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20705] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20705] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20705] exit_group(0)               = ?
[pid 20705] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20705, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20706
./strace-static-x86_64: Process 20706 attached
[pid 20706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20706] setpgid(0, 0)               = 0
[pid 20706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20706] write(3, "1000", 4)         = 4
[pid 20706] close(3)                    = 0
[pid 20706] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20706] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20706] write(4, "78", 2)           = 2
[pid 20706] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20706] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20706] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20706] exit_group(0)               = ?
[pid 20706] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20706, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20707
./strace-static-x86_64: Process 20707 attached
[pid 20707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20707] setpgid(0, 0)               = 0
[pid 20707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20707] write(3, "1000", 4)         = 4
[pid 20707] close(3)                    = 0
[pid 20707] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20707] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20707] write(4, "78", 2)           = 2
[pid 20707] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20707] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20707] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20707] exit_group(0)               = ?
[pid 20707] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20707, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20708 attached
, child_tidptr=0x555555af35d0) = 20708
[pid 20708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20708] setpgid(0, 0)               = 0
[pid 20708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20708] write(3, "1000", 4)         = 4
[pid 20708] close(3)                    = 0
[pid 20708] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20708] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20708] write(4, "78", 2)           = 2
[pid 20708] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20708] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20708] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20708] exit_group(0)               = ?
[pid 20708] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20708, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20709 attached
, child_tidptr=0x555555af35d0) = 20709
[pid 20709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20709] setpgid(0, 0)               = 0
[pid 20709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20709] write(3, "1000", 4)         = 4
[pid 20709] close(3)                    = 0
[pid 20709] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20709] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20709] write(4, "78", 2)           = 2
[pid 20709] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20709] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20709] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20709] exit_group(0)               = ?
[pid 20709] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20709, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20710 attached
, child_tidptr=0x555555af35d0) = 20710
[pid 20710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20710] setpgid(0, 0)               = 0
[pid 20710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20710] write(3, "1000", 4)         = 4
[pid 20710] close(3)                    = 0
[pid 20710] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20710] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20710] write(4, "78", 2)           = 2
[pid 20710] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20710] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20710] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20710] exit_group(0)               = ?
[pid 20710] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20710, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20711 attached
, child_tidptr=0x555555af35d0) = 20711
[pid 20711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20711] setpgid(0, 0)               = 0
[pid 20711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20711] write(3, "1000", 4)         = 4
[pid 20711] close(3)                    = 0
[pid 20711] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20711] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20711] write(4, "78", 2)           = 2
[pid 20711] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20711] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20711] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20711] exit_group(0)               = ?
[pid 20711] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20711, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20712 attached
, child_tidptr=0x555555af35d0) = 20712
[pid 20712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20712] setpgid(0, 0)               = 0
[pid 20712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20712] write(3, "1000", 4)         = 4
[pid 20712] close(3)                    = 0
[pid 20712] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20712] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20712] write(4, "78", 2)           = 2
[pid 20712] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20712] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20712] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20712] exit_group(0)               = ?
[pid 20712] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20712, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20713
./strace-static-x86_64: Process 20713 attached
[pid 20713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20713] setpgid(0, 0)               = 0
[pid 20713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20713] write(3, "1000", 4)         = 4
[pid 20713] close(3)                    = 0
[pid 20713] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20713] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20713] write(4, "78", 2)           = 2
[pid 20713] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20713] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20713] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20713] exit_group(0)               = ?
[pid 20713] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20713, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20714
./strace-static-x86_64: Process 20714 attached
[pid 20714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20714] setpgid(0, 0)               = 0
[pid 20714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20714] write(3, "1000", 4)         = 4
[pid 20714] close(3)                    = 0
[pid 20714] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20714] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20714] write(4, "78", 2)           = 2
[pid 20714] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20714] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20714] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20714] exit_group(0)               = ?
[pid 20714] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20714, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20715
./strace-static-x86_64: Process 20715 attached
[pid 20715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20715] setpgid(0, 0)               = 0
[pid 20715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20715] write(3, "1000", 4)         = 4
[pid 20715] close(3)                    = 0
[pid 20715] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20715] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20715] write(4, "78", 2)           = 2
[pid 20715] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20715] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20715] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20715] exit_group(0)               = ?
[pid 20715] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20715, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20716
./strace-static-x86_64: Process 20716 attached
[pid 20716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20716] setpgid(0, 0)               = 0
[pid 20716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20716] write(3, "1000", 4)         = 4
[pid 20716] close(3)                    = 0
[pid 20716] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20716] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20716] write(4, "78", 2)           = 2
[pid 20716] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20716] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20716] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20716] exit_group(0)               = ?
[pid 20716] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20716, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20717
./strace-static-x86_64: Process 20717 attached
[pid 20717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20717] setpgid(0, 0)               = 0
[pid 20717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20717] write(3, "1000", 4)         = 4
[pid 20717] close(3)                    = 0
[pid 20717] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20717] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20717] write(4, "78", 2)           = 2
[pid 20717] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20717] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20717] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20717] exit_group(0)               = ?
[pid 20717] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20717, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20718
./strace-static-x86_64: Process 20718 attached
[pid 20718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20718] setpgid(0, 0)               = 0
[pid 20718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20718] write(3, "1000", 4)         = 4
[pid 20718] close(3)                    = 0
[pid 20718] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20718] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20718] write(4, "78", 2)           = 2
[pid 20718] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20718] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20718] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20718] exit_group(0)               = ?
[pid 20718] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20718, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20719
./strace-static-x86_64: Process 20719 attached
[pid 20719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20719] setpgid(0, 0)               = 0
[pid 20719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20719] write(3, "1000", 4)         = 4
[pid 20719] close(3)                    = 0
[pid 20719] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20719] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20719] write(4, "78", 2)           = 2
[pid 20719] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20719] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20719] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20719] exit_group(0)               = ?
[pid 20719] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20719, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20720
./strace-static-x86_64: Process 20720 attached
[pid 20720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20720] setpgid(0, 0)               = 0
[pid 20720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20720] write(3, "1000", 4)         = 4
[pid 20720] close(3)                    = 0
[pid 20720] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20720] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20720] write(4, "78", 2)           = 2
[pid 20720] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20720] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20720] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20720] exit_group(0)               = ?
[pid 20720] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20720, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20721 attached
, child_tidptr=0x555555af35d0) = 20721
[pid 20721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20721] setpgid(0, 0)               = 0
[pid 20721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20721] write(3, "1000", 4)         = 4
[pid 20721] close(3)                    = 0
[pid 20721] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20721] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20721] write(4, "78", 2)           = 2
[pid 20721] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20721] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20721] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20721] exit_group(0)               = ?
[pid 20721] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20721, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20722 attached
, child_tidptr=0x555555af35d0) = 20722
[pid 20722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20722] setpgid(0, 0)               = 0
[pid 20722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20722] write(3, "1000", 4)         = 4
[pid 20722] close(3)                    = 0
[pid 20722] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20722] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20722] write(4, "78", 2)           = 2
[pid 20722] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20722] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20722] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20722] exit_group(0)               = ?
[pid 20722] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20722, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20723 attached
, child_tidptr=0x555555af35d0) = 20723
[pid 20723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20723] setpgid(0, 0)               = 0
[pid 20723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20723] write(3, "1000", 4)         = 4
[pid 20723] close(3)                    = 0
[pid 20723] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20723] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20723] write(4, "78", 2)           = 2
[pid 20723] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20723] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20723] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20723] exit_group(0)               = ?
[pid 20723] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20723, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20724 attached
, child_tidptr=0x555555af35d0) = 20724
[pid 20724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20724] setpgid(0, 0)               = 0
[pid 20724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20724] write(3, "1000", 4)         = 4
[pid 20724] close(3)                    = 0
[pid 20724] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20724] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20724] write(4, "78", 2)           = 2
[pid 20724] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20724] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20724] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20724] exit_group(0)               = ?
[pid 20724] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20724, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20725 attached
, child_tidptr=0x555555af35d0) = 20725
[pid 20725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20725] setpgid(0, 0)               = 0
[pid 20725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20725] write(3, "1000", 4)         = 4
[pid 20725] close(3)                    = 0
[pid 20725] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20725] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20725] write(4, "78", 2)           = 2
[pid 20725] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20725] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20725] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20725] exit_group(0)               = ?
[pid 20725] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20725, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20726 attached
, child_tidptr=0x555555af35d0) = 20726
[pid 20726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20726] setpgid(0, 0)               = 0
[pid 20726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20726] write(3, "1000", 4)         = 4
[pid 20726] close(3)                    = 0
[pid 20726] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20726] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20726] write(4, "78", 2)           = 2
[pid 20726] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20726] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20726] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20726] exit_group(0)               = ?
[pid 20726] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20726, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20727
./strace-static-x86_64: Process 20727 attached
[pid 20727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20727] setpgid(0, 0)               = 0
[pid 20727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20727] write(3, "1000", 4)         = 4
[pid 20727] close(3)                    = 0
[pid 20727] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20727] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20727] write(4, "78", 2)           = 2
[pid 20727] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20727] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20727] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20727] exit_group(0)               = ?
[pid 20727] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20727, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20728 attached
, child_tidptr=0x555555af35d0) = 20728
[pid 20728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20728] setpgid(0, 0)               = 0
[pid 20728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20728] write(3, "1000", 4)         = 4
[pid 20728] close(3)                    = 0
[pid 20728] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20728] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20728] write(4, "78", 2)           = 2
[pid 20728] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20728] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20728] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20728] exit_group(0)               = ?
[pid 20728] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20728, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20729
./strace-static-x86_64: Process 20729 attached
[pid 20729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20729] setpgid(0, 0)               = 0
[pid 20729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20729] write(3, "1000", 4)         = 4
[pid 20729] close(3)                    = 0
[pid 20729] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20729] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20729] write(4, "78", 2)           = 2
[pid 20729] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20729] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20729] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20729] exit_group(0)               = ?
[pid 20729] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20729, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20730
./strace-static-x86_64: Process 20730 attached
[pid 20730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20730] setpgid(0, 0)               = 0
[pid 20730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20730] write(3, "1000", 4)         = 4
[pid 20730] close(3)                    = 0
[pid 20730] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20730] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20730] write(4, "78", 2)           = 2
[pid 20730] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20730] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20730] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20730] exit_group(0)               = ?
[pid 20730] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20730, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20731
./strace-static-x86_64: Process 20731 attached
[pid 20731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20731] setpgid(0, 0)               = 0
[pid 20731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20731] write(3, "1000", 4)         = 4
[pid 20731] close(3)                    = 0
[pid 20731] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20731] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20731] write(4, "78", 2)           = 2
[pid 20731] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20731] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20731] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20731] exit_group(0)               = ?
[pid 20731] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20731, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20732
./strace-static-x86_64: Process 20732 attached
[pid 20732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20732] setpgid(0, 0)               = 0
[pid 20732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20732] write(3, "1000", 4)         = 4
[pid 20732] close(3)                    = 0
[pid 20732] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20732] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20732] write(4, "78", 2)           = 2
[pid 20732] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20732] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20732] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20732] exit_group(0)               = ?
[pid 20732] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20732, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20733
./strace-static-x86_64: Process 20733 attached
[pid 20733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20733] setpgid(0, 0)               = 0
[pid 20733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20733] write(3, "1000", 4)         = 4
[pid 20733] close(3)                    = 0
[pid 20733] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20733] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20733] write(4, "78", 2)           = 2
[pid 20733] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20733] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20733] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20733] exit_group(0)               = ?
[pid 20733] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20733, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20734
./strace-static-x86_64: Process 20734 attached
[pid 20734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20734] setpgid(0, 0)               = 0
[pid 20734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20734] write(3, "1000", 4)         = 4
[pid 20734] close(3)                    = 0
[pid 20734] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20734] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20734] write(4, "78", 2)           = 2
[pid 20734] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20734] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20734] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20734] exit_group(0)               = ?
[pid 20734] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20734, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20735
./strace-static-x86_64: Process 20735 attached
[pid 20735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20735] setpgid(0, 0)               = 0
[pid 20735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20735] write(3, "1000", 4)         = 4
[pid 20735] close(3)                    = 0
[pid 20735] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20735] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20735] write(4, "78", 2)           = 2
[pid 20735] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20735] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20735] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20735] exit_group(0)               = ?
[pid 20735] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20735, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20736 attached
, child_tidptr=0x555555af35d0) = 20736
[pid 20736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20736] setpgid(0, 0)               = 0
[pid 20736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20736] write(3, "1000", 4)         = 4
[pid 20736] close(3)                    = 0
[pid 20736] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20736] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20736] write(4, "78", 2)           = 2
[pid 20736] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20736] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20736] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20736] exit_group(0)               = ?
[pid 20736] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20736, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20737 attached
, child_tidptr=0x555555af35d0) = 20737
[pid 20737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20737] setpgid(0, 0)               = 0
[pid 20737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20737] write(3, "1000", 4)         = 4
[pid 20737] close(3)                    = 0
[pid 20737] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20737] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20737] write(4, "78", 2)           = 2
[pid 20737] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20737] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20737] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20737] exit_group(0)               = ?
[pid 20737] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20737, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20738
./strace-static-x86_64: Process 20738 attached
[pid 20738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20738] setpgid(0, 0)               = 0
[pid 20738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20738] write(3, "1000", 4)         = 4
[pid 20738] close(3)                    = 0
[pid 20738] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20738] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20738] write(4, "78", 2)           = 2
[pid 20738] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20738] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20738] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20738] exit_group(0)               = ?
[pid 20738] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20738, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20739 attached
, child_tidptr=0x555555af35d0) = 20739
[pid 20739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20739] setpgid(0, 0)               = 0
[pid 20739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20739] write(3, "1000", 4)         = 4
[pid 20739] close(3)                    = 0
[pid 20739] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20739] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20739] write(4, "78", 2)           = 2
[pid 20739] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20739] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20739] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20739] exit_group(0)               = ?
[pid 20739] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20739, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20740
./strace-static-x86_64: Process 20740 attached
[pid 20740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20740] setpgid(0, 0)               = 0
[pid 20740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20740] write(3, "1000", 4)         = 4
[pid 20740] close(3)                    = 0
[pid 20740] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20740] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20740] write(4, "78", 2)           = 2
[pid 20740] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20740] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20740] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20740] exit_group(0)               = ?
[pid 20740] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20740, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20741 attached
, child_tidptr=0x555555af35d0) = 20741
[pid 20741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20741] setpgid(0, 0)               = 0
[pid 20741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20741] write(3, "1000", 4)         = 4
[pid 20741] close(3)                    = 0
[pid 20741] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20741] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20741] write(4, "78", 2)           = 2
[pid 20741] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20741] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20741] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20741] exit_group(0)               = ?
[pid 20741] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20741, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20742 attached
, child_tidptr=0x555555af35d0) = 20742
[pid 20742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20742] setpgid(0, 0)               = 0
[pid 20742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20742] write(3, "1000", 4)         = 4
[pid 20742] close(3)                    = 0
[pid 20742] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20742] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20742] write(4, "78", 2)           = 2
[pid 20742] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20742] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20742] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20742] exit_group(0)               = ?
[pid 20742] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20742, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20743 attached
, child_tidptr=0x555555af35d0) = 20743
[pid 20743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20743] setpgid(0, 0)               = 0
[pid 20743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20743] write(3, "1000", 4)         = 4
[pid 20743] close(3)                    = 0
[pid 20743] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20743] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20743] write(4, "78", 2)           = 2
[pid 20743] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20743] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20743] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20743] exit_group(0)               = ?
[pid 20743] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20743, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20744
./strace-static-x86_64: Process 20744 attached
[pid 20744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20744] setpgid(0, 0)               = 0
[pid 20744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20744] write(3, "1000", 4)         = 4
[pid 20744] close(3)                    = 0
[pid 20744] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20744] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20744] write(4, "78", 2)           = 2
[pid 20744] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20744] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20744] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20744] exit_group(0)               = ?
[pid 20744] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20744, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20745 attached
, child_tidptr=0x555555af35d0) = 20745
[pid 20745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20745] setpgid(0, 0)               = 0
[pid 20745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20745] write(3, "1000", 4)         = 4
[pid 20745] close(3)                    = 0
[pid 20745] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20745] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20745] write(4, "78", 2)           = 2
[pid 20745] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20745] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20745] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20745] exit_group(0)               = ?
[pid 20745] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20745, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20746
./strace-static-x86_64: Process 20746 attached
[pid 20746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20746] setpgid(0, 0)               = 0
[pid 20746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20746] write(3, "1000", 4)         = 4
[pid 20746] close(3)                    = 0
[pid 20746] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20746] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20746] write(4, "78", 2)           = 2
[pid 20746] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20746] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20746] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20746] exit_group(0)               = ?
[pid 20746] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20746, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20747
./strace-static-x86_64: Process 20747 attached
[pid 20747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20747] setpgid(0, 0)               = 0
[pid 20747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20747] write(3, "1000", 4)         = 4
[pid 20747] close(3)                    = 0
[pid 20747] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20747] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20747] write(4, "78", 2)           = 2
[pid 20747] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20747] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20747] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20747] exit_group(0)               = ?
[pid 20747] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20747, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20748 attached
, child_tidptr=0x555555af35d0) = 20748
[pid 20748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20748] setpgid(0, 0)               = 0
[pid 20748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20748] write(3, "1000", 4)         = 4
[pid 20748] close(3)                    = 0
[pid 20748] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20748] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20748] write(4, "78", 2)           = 2
[pid 20748] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20748] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20748] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20748] exit_group(0)               = ?
[pid 20748] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20748, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20749 attached
, child_tidptr=0x555555af35d0) = 20749
[pid 20749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20749] setpgid(0, 0)               = 0
[pid 20749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20749] write(3, "1000", 4)         = 4
[pid 20749] close(3)                    = 0
[pid 20749] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20749] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20749] write(4, "78", 2)           = 2
[pid 20749] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20749] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20749] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20749] exit_group(0)               = ?
[pid 20749] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20749, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20750 attached
, child_tidptr=0x555555af35d0) = 20750
[pid 20750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20750] setpgid(0, 0)               = 0
[pid 20750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20750] write(3, "1000", 4)         = 4
[pid 20750] close(3)                    = 0
[pid 20750] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20750] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20750] write(4, "78", 2)           = 2
[pid 20750] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20750] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20750] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20750] exit_group(0)               = ?
[pid 20750] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20750, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20751 attached
, child_tidptr=0x555555af35d0) = 20751
[pid 20751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20751] setpgid(0, 0)               = 0
[pid 20751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20751] write(3, "1000", 4)         = 4
[pid 20751] close(3)                    = 0
[pid 20751] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20751] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20751] write(4, "78", 2)           = 2
[pid 20751] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20751] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20751] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20751] exit_group(0)               = ?
[pid 20751] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20751, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20752 attached
, child_tidptr=0x555555af35d0) = 20752
[pid 20752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20752] setpgid(0, 0)               = 0
[pid 20752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20752] write(3, "1000", 4)         = 4
[pid 20752] close(3)                    = 0
[pid 20752] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20752] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20752] write(4, "78", 2)           = 2
[pid 20752] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20752] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20752] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20752] exit_group(0)               = ?
[pid 20752] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20752, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20753 attached
, child_tidptr=0x555555af35d0) = 20753
[pid 20753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20753] setpgid(0, 0)               = 0
[pid 20753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20753] write(3, "1000", 4)         = 4
[pid 20753] close(3)                    = 0
[pid 20753] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20753] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20753] write(4, "78", 2)           = 2
[pid 20753] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20753] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20753] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20753] exit_group(0)               = ?
[pid 20753] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20753, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20754 attached
, child_tidptr=0x555555af35d0) = 20754
[pid 20754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20754] setpgid(0, 0)               = 0
[pid 20754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20754] write(3, "1000", 4)         = 4
[pid 20754] close(3)                    = 0
[pid 20754] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20754] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20754] write(4, "78", 2)           = 2
[pid 20754] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20754] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20754] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20754] exit_group(0)               = ?
[pid 20754] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20754, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20755 attached
, child_tidptr=0x555555af35d0) = 20755
[pid 20755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20755] setpgid(0, 0)               = 0
[pid 20755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20755] write(3, "1000", 4)         = 4
[pid 20755] close(3)                    = 0
[pid 20755] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20755] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20755] write(4, "78", 2)           = 2
[pid 20755] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20755] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20755] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20755] exit_group(0)               = ?
[pid 20755] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20755, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20756
./strace-static-x86_64: Process 20756 attached
[pid 20756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20756] setpgid(0, 0)               = 0
[pid 20756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20756] write(3, "1000", 4)         = 4
[pid 20756] close(3)                    = 0
[pid 20756] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20756] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20756] write(4, "78", 2)           = 2
[pid 20756] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20756] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20756] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20756] exit_group(0)               = ?
[pid 20756] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20756, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20757
./strace-static-x86_64: Process 20757 attached
[pid 20757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20757] setpgid(0, 0)               = 0
[pid 20757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20757] write(3, "1000", 4)         = 4
[pid 20757] close(3)                    = 0
[pid 20757] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20757] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20757] write(4, "78", 2)           = 2
[pid 20757] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20757] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20757] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20757] exit_group(0)               = ?
[pid 20757] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20757, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20758
./strace-static-x86_64: Process 20758 attached
[pid 20758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20758] setpgid(0, 0)               = 0
[pid 20758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20758] write(3, "1000", 4)         = 4
[pid 20758] close(3)                    = 0
[pid 20758] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20758] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20758] write(4, "78", 2)           = 2
[pid 20758] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20758] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20758] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20758] exit_group(0)               = ?
[pid 20758] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20758, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20759 attached
, child_tidptr=0x555555af35d0) = 20759
[pid 20759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20759] setpgid(0, 0)               = 0
[pid 20759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20759] write(3, "1000", 4)         = 4
[pid 20759] close(3)                    = 0
[pid 20759] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20759] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20759] write(4, "78", 2)           = 2
[pid 20759] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20759] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20759] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20759] exit_group(0)               = ?
[pid 20759] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20759, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20760 attached
, child_tidptr=0x555555af35d0) = 20760
[pid 20760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20760] setpgid(0, 0)               = 0
[pid 20760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20760] write(3, "1000", 4)         = 4
[pid 20760] close(3)                    = 0
[pid 20760] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20760] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20760] write(4, "78", 2)           = 2
[pid 20760] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20760] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20760] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20760] exit_group(0)               = ?
[pid 20760] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20760, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20761 attached
, child_tidptr=0x555555af35d0) = 20761
[pid 20761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20761] setpgid(0, 0)               = 0
[pid 20761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20761] write(3, "1000", 4)         = 4
[pid 20761] close(3)                    = 0
[pid 20761] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20761] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20761] write(4, "78", 2)           = 2
[pid 20761] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20761] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20761] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20761] exit_group(0)               = ?
[pid 20761] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20761, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20762
./strace-static-x86_64: Process 20762 attached
[pid 20762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20762] setpgid(0, 0)               = 0
[pid 20762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20762] write(3, "1000", 4)         = 4
[pid 20762] close(3)                    = 0
[pid 20762] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20762] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20762] write(4, "78", 2)           = 2
[pid 20762] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20762] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20762] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20762] exit_group(0)               = ?
[pid 20762] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20762, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20763
./strace-static-x86_64: Process 20763 attached
[pid 20763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20763] setpgid(0, 0)               = 0
[pid 20763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20763] write(3, "1000", 4)         = 4
[pid 20763] close(3)                    = 0
[pid 20763] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20763] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20763] write(4, "78", 2)           = 2
[pid 20763] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20763] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20763] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20763] exit_group(0)               = ?
[pid 20763] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20763, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20764 attached
, child_tidptr=0x555555af35d0) = 20764
[pid 20764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20764] setpgid(0, 0)               = 0
[pid 20764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20764] write(3, "1000", 4)         = 4
[pid 20764] close(3)                    = 0
[pid 20764] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20764] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20764] write(4, "78", 2)           = 2
[pid 20764] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20764] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20764] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20764] exit_group(0)               = ?
[pid 20764] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20764, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20765 attached
, child_tidptr=0x555555af35d0) = 20765
[pid 20765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20765] setpgid(0, 0)               = 0
[pid 20765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20765] write(3, "1000", 4)         = 4
[pid 20765] close(3)                    = 0
[pid 20765] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20765] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20765] write(4, "78", 2)           = 2
[pid 20765] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20765] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20765] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20765] exit_group(0)               = ?
[pid 20765] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20765, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20766 attached
, child_tidptr=0x555555af35d0) = 20766
[pid 20766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20766] setpgid(0, 0)               = 0
[pid 20766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20766] write(3, "1000", 4)         = 4
[pid 20766] close(3)                    = 0
[pid 20766] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20766] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20766] write(4, "78", 2)           = 2
[pid 20766] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20766] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20766] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20766] exit_group(0)               = ?
[pid 20766] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20766, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20767
./strace-static-x86_64: Process 20767 attached
[pid 20767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20767] setpgid(0, 0)               = 0
[pid 20767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20767] write(3, "1000", 4)         = 4
[pid 20767] close(3)                    = 0
[pid 20767] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20767] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20767] write(4, "78", 2)           = 2
[pid 20767] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20767] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20767] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20767] exit_group(0)               = ?
[pid 20767] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20767, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20768
./strace-static-x86_64: Process 20768 attached
[pid 20768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20768] setpgid(0, 0)               = 0
[pid 20768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20768] write(3, "1000", 4)         = 4
[pid 20768] close(3)                    = 0
[pid 20768] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20768] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20768] write(4, "78", 2)           = 2
[pid 20768] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20768] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20768] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20768] exit_group(0)               = ?
[pid 20768] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20768, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20769
./strace-static-x86_64: Process 20769 attached
[pid 20769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20769] setpgid(0, 0)               = 0
[pid 20769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20769] write(3, "1000", 4)         = 4
[pid 20769] close(3)                    = 0
[pid 20769] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20769] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20769] write(4, "78", 2)           = 2
[pid 20769] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20769] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20769] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20769] exit_group(0)               = ?
[pid 20769] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20769, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20770 attached
, child_tidptr=0x555555af35d0) = 20770
[pid 20770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20770] setpgid(0, 0)               = 0
[pid 20770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20770] write(3, "1000", 4)         = 4
[pid 20770] close(3)                    = 0
[pid 20770] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20770] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20770] write(4, "78", 2)           = 2
[pid 20770] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20770] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20770] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20770] exit_group(0)               = ?
[pid 20770] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20770, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20771 attached
, child_tidptr=0x555555af35d0) = 20771
[pid 20771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20771] setpgid(0, 0)               = 0
[pid 20771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20771] write(3, "1000", 4)         = 4
[pid 20771] close(3)                    = 0
[pid 20771] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20771] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20771] write(4, "78", 2)           = 2
[pid 20771] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20771] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20771] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20771] exit_group(0)               = ?
[pid 20771] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20771, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20772 attached
, child_tidptr=0x555555af35d0) = 20772
[pid 20772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20772] setpgid(0, 0)               = 0
[pid 20772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20772] write(3, "1000", 4)         = 4
[pid 20772] close(3)                    = 0
[pid 20772] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20772] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20772] write(4, "78", 2)           = 2
[pid 20772] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20772] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20772] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20772] exit_group(0)               = ?
[pid 20772] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20772, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20773 attached
, child_tidptr=0x555555af35d0) = 20773
[pid 20773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20773] setpgid(0, 0)               = 0
[pid 20773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20773] write(3, "1000", 4)         = 4
[pid 20773] close(3)                    = 0
[pid 20773] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20773] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20773] write(4, "78", 2)           = 2
[pid 20773] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20773] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20773] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20773] exit_group(0)               = ?
[pid 20773] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20773, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20774 attached
, child_tidptr=0x555555af35d0) = 20774
[pid 20774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20774] setpgid(0, 0)               = 0
[pid 20774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20774] write(3, "1000", 4)         = 4
[pid 20774] close(3)                    = 0
[pid 20774] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20774] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20774] write(4, "78", 2)           = 2
[pid 20774] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20774] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20774] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20774] exit_group(0)               = ?
[pid 20774] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20774, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20775 attached
, child_tidptr=0x555555af35d0) = 20775
[pid 20775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20775] setpgid(0, 0)               = 0
[pid 20775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20775] write(3, "1000", 4)         = 4
[pid 20775] close(3)                    = 0
[pid 20775] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20775] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20775] write(4, "78", 2)           = 2
[pid 20775] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20775] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20775] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20775] exit_group(0)               = ?
[pid 20775] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20775, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20776 attached
, child_tidptr=0x555555af35d0) = 20776
[pid 20776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20776] setpgid(0, 0)               = 0
[pid 20776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20776] write(3, "1000", 4)         = 4
[pid 20776] close(3)                    = 0
[pid 20776] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20776] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20776] write(4, "78", 2)           = 2
[pid 20776] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20776] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20776] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20776] exit_group(0)               = ?
[pid 20776] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20776, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20777 attached
, child_tidptr=0x555555af35d0) = 20777
[pid 20777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20777] setpgid(0, 0)               = 0
[pid 20777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20777] write(3, "1000", 4)         = 4
[pid 20777] close(3)                    = 0
[pid 20777] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20777] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20777] write(4, "78", 2)           = 2
[pid 20777] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20777] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20777] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20777] exit_group(0)               = ?
[pid 20777] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20777, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20778
./strace-static-x86_64: Process 20778 attached
[pid 20778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20778] setpgid(0, 0)               = 0
[pid 20778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20778] write(3, "1000", 4)         = 4
[pid 20778] close(3)                    = 0
[pid 20778] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20778] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20778] write(4, "78", 2)           = 2
[pid 20778] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20778] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20778] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20778] exit_group(0)               = ?
[pid 20778] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20778, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20779 attached
, child_tidptr=0x555555af35d0) = 20779
[pid 20779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20779] setpgid(0, 0)               = 0
[pid 20779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20779] write(3, "1000", 4)         = 4
[pid 20779] close(3)                    = 0
[pid 20779] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20779] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20779] write(4, "78", 2)           = 2
[pid 20779] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20779] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20779] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20779] exit_group(0)               = ?
[pid 20779] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20779, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20780 attached
, child_tidptr=0x555555af35d0) = 20780
[pid 20780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20780] setpgid(0, 0)               = 0
[pid 20780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20780] write(3, "1000", 4)         = 4
[pid 20780] close(3)                    = 0
[pid 20780] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20780] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20780] write(4, "78", 2)           = 2
[pid 20780] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20780] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20780] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20780] exit_group(0)               = ?
[pid 20780] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20780, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20781 attached
, child_tidptr=0x555555af35d0) = 20781
[pid 20781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20781] setpgid(0, 0)               = 0
[pid 20781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20781] write(3, "1000", 4)         = 4
[pid 20781] close(3)                    = 0
[pid 20781] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20781] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20781] write(4, "78", 2)           = 2
[pid 20781] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20781] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20781] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20781] exit_group(0)               = ?
[pid 20781] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20781, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20782 attached
, child_tidptr=0x555555af35d0) = 20782
[pid 20782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20782] setpgid(0, 0)               = 0
[pid 20782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20782] write(3, "1000", 4)         = 4
[pid 20782] close(3)                    = 0
[pid 20782] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20782] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20782] write(4, "78", 2)           = 2
[pid 20782] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20782] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20782] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20782] exit_group(0)               = ?
[pid 20782] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20782, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20783 attached
, child_tidptr=0x555555af35d0) = 20783
[pid 20783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20783] setpgid(0, 0)               = 0
[pid 20783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20783] write(3, "1000", 4)         = 4
[pid 20783] close(3)                    = 0
[pid 20783] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20783] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20783] write(4, "78", 2)           = 2
[pid 20783] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20783] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20783] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20783] exit_group(0)               = ?
[pid 20783] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20783, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20784 attached
, child_tidptr=0x555555af35d0) = 20784
[pid 20784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20784] setpgid(0, 0)               = 0
[pid 20784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20784] write(3, "1000", 4)         = 4
[pid 20784] close(3)                    = 0
[pid 20784] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20784] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20784] write(4, "78", 2)           = 2
[pid 20784] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20784] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20784] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20784] exit_group(0)               = ?
[pid 20784] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20784, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20785 attached
, child_tidptr=0x555555af35d0) = 20785
[pid 20785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20785] setpgid(0, 0)               = 0
[pid 20785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20785] write(3, "1000", 4)         = 4
[pid 20785] close(3)                    = 0
[pid 20785] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20785] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20785] write(4, "78", 2)           = 2
[pid 20785] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20785] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20785] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20785] exit_group(0)               = ?
[pid 20785] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20785, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20786 attached
, child_tidptr=0x555555af35d0) = 20786
[pid 20786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20786] setpgid(0, 0)               = 0
[pid 20786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20786] write(3, "1000", 4)         = 4
[pid 20786] close(3)                    = 0
[pid 20786] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20786] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20786] write(4, "78", 2)           = 2
[pid 20786] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20786] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20786] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20786] exit_group(0)               = ?
[pid 20786] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20786, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20787 attached
, child_tidptr=0x555555af35d0) = 20787
[pid 20787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20787] setpgid(0, 0)               = 0
[pid 20787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20787] write(3, "1000", 4)         = 4
[pid 20787] close(3)                    = 0
[pid 20787] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20787] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20787] write(4, "78", 2)           = 2
[pid 20787] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20787] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20787] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20787] exit_group(0)               = ?
[pid 20787] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20787, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20788 attached
, child_tidptr=0x555555af35d0) = 20788
[pid 20788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20788] setpgid(0, 0)               = 0
[pid 20788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20788] write(3, "1000", 4)         = 4
[pid 20788] close(3)                    = 0
[pid 20788] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20788] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20788] write(4, "78", 2)           = 2
[pid 20788] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20788] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20788] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20788] exit_group(0)               = ?
[pid 20788] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20788, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20789
./strace-static-x86_64: Process 20789 attached
[pid 20789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20789] setpgid(0, 0)               = 0
[pid 20789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20789] write(3, "1000", 4)         = 4
[pid 20789] close(3)                    = 0
[pid 20789] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20789] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20789] write(4, "78", 2)           = 2
[pid 20789] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20789] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20789] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20789] exit_group(0)               = ?
[pid 20789] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20789, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20790 attached
, child_tidptr=0x555555af35d0) = 20790
[pid 20790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20790] setpgid(0, 0)               = 0
[pid 20790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20790] write(3, "1000", 4)         = 4
[pid 20790] close(3)                    = 0
[pid 20790] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20790] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20790] write(4, "78", 2)           = 2
[pid 20790] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20790] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20790] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20790] exit_group(0)               = ?
[pid 20790] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20790, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20791 attached
, child_tidptr=0x555555af35d0) = 20791
[pid 20791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20791] setpgid(0, 0)               = 0
[pid 20791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20791] write(3, "1000", 4)         = 4
[pid 20791] close(3)                    = 0
[pid 20791] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20791] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20791] write(4, "78", 2)           = 2
[pid 20791] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20791] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20791] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20791] exit_group(0)               = ?
[pid 20791] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20791, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20792 attached
, child_tidptr=0x555555af35d0) = 20792
[pid 20792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20792] setpgid(0, 0)               = 0
[pid 20792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20792] write(3, "1000", 4)         = 4
[pid 20792] close(3)                    = 0
[pid 20792] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20792] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20792] write(4, "78", 2)           = 2
[pid 20792] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20792] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20792] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20792] exit_group(0)               = ?
[pid 20792] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20792, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20793
./strace-static-x86_64: Process 20793 attached
[pid 20793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20793] setpgid(0, 0)               = 0
[pid 20793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20793] write(3, "1000", 4)         = 4
[pid 20793] close(3)                    = 0
[pid 20793] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20793] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20793] write(4, "78", 2)           = 2
[pid 20793] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20793] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20793] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20793] exit_group(0)               = ?
[pid 20793] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20793, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20794 attached
, child_tidptr=0x555555af35d0) = 20794
[pid 20794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20794] setpgid(0, 0)               = 0
[pid 20794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20794] write(3, "1000", 4)         = 4
[pid 20794] close(3)                    = 0
[pid 20794] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20794] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20794] write(4, "78", 2)           = 2
[pid 20794] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20794] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20794] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20794] exit_group(0)               = ?
[pid 20794] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20794, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20795 attached
, child_tidptr=0x555555af35d0) = 20795
[pid 20795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20795] setpgid(0, 0)               = 0
[pid 20795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20795] write(3, "1000", 4)         = 4
[pid 20795] close(3)                    = 0
[pid 20795] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20795] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20795] write(4, "78", 2)           = 2
[pid 20795] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20795] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20795] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20795] exit_group(0)               = ?
[pid 20795] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20795, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20796 attached
, child_tidptr=0x555555af35d0) = 20796
[pid 20796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20796] setpgid(0, 0)               = 0
[pid 20796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20796] write(3, "1000", 4)         = 4
[pid 20796] close(3)                    = 0
[pid 20796] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20796] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20796] write(4, "78", 2)           = 2
[pid 20796] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20796] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20796] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20796] exit_group(0)               = ?
[pid 20796] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20796, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20797 attached
, child_tidptr=0x555555af35d0) = 20797
[pid 20797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20797] setpgid(0, 0)               = 0
[pid 20797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20797] write(3, "1000", 4)         = 4
[pid 20797] close(3)                    = 0
[pid 20797] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20797] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20797] write(4, "78", 2)           = 2
[pid 20797] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20797] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20797] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20797] exit_group(0)               = ?
[pid 20797] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20797, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20798 attached
, child_tidptr=0x555555af35d0) = 20798
[pid 20798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20798] setpgid(0, 0)               = 0
[pid 20798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20798] write(3, "1000", 4)         = 4
[pid 20798] close(3)                    = 0
[pid 20798] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20798] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20798] write(4, "78", 2)           = 2
[pid 20798] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20798] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20798] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20798] exit_group(0)               = ?
[pid 20798] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20798, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20799 attached
, child_tidptr=0x555555af35d0) = 20799
[pid 20799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20799] setpgid(0, 0)               = 0
[pid 20799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20799] write(3, "1000", 4)         = 4
[pid 20799] close(3)                    = 0
[pid 20799] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20799] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20799] write(4, "78", 2)           = 2
[pid 20799] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20799] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20799] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20799] exit_group(0)               = ?
[pid 20799] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20799, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20800
./strace-static-x86_64: Process 20800 attached
[pid 20800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20800] setpgid(0, 0)               = 0
[pid 20800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20800] write(3, "1000", 4)         = 4
[pid 20800] close(3)                    = 0
[pid 20800] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20800] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20800] write(4, "78", 2)           = 2
[pid 20800] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20800] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20800] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20800] exit_group(0)               = ?
[pid 20800] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20800, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20801 attached
, child_tidptr=0x555555af35d0) = 20801
[pid 20801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20801] setpgid(0, 0)               = 0
[pid 20801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20801] write(3, "1000", 4)         = 4
[pid 20801] close(3)                    = 0
[pid 20801] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20801] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20801] write(4, "78", 2)           = 2
[pid 20801] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20801] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20801] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20801] exit_group(0)               = ?
[pid 20801] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20801, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20802
./strace-static-x86_64: Process 20802 attached
[pid 20802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20802] setpgid(0, 0)               = 0
[pid 20802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20802] write(3, "1000", 4)         = 4
[pid 20802] close(3)                    = 0
[pid 20802] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20802] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20802] write(4, "78", 2)           = 2
[pid 20802] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20802] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20802] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20802] exit_group(0)               = ?
[pid 20802] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20802, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20803 attached
, child_tidptr=0x555555af35d0) = 20803
[pid 20803] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20803] setpgid(0, 0)               = 0
[pid 20803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20803] write(3, "1000", 4)         = 4
[pid 20803] close(3)                    = 0
[pid 20803] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20803] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20803] write(4, "78", 2)           = 2
[pid 20803] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20803] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20803] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20803] exit_group(0)               = ?
[pid 20803] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20803, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20804
./strace-static-x86_64: Process 20804 attached
[pid 20804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20804] setpgid(0, 0)               = 0
[pid 20804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20804] write(3, "1000", 4)         = 4
[pid 20804] close(3)                    = 0
[pid 20804] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20804] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20804] write(4, "78", 2)           = 2
[pid 20804] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20804] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20804] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20804] exit_group(0)               = ?
[pid 20804] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20804, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20805
./strace-static-x86_64: Process 20805 attached
[pid 20805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20805] setpgid(0, 0)               = 0
[pid 20805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20805] write(3, "1000", 4)         = 4
[pid 20805] close(3)                    = 0
[pid 20805] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20805] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20805] write(4, "78", 2)           = 2
[pid 20805] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20805] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20805] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20805] exit_group(0)               = ?
[pid 20805] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20805, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20806
./strace-static-x86_64: Process 20806 attached
[pid 20806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20806] setpgid(0, 0)               = 0
[pid 20806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20806] write(3, "1000", 4)         = 4
[pid 20806] close(3)                    = 0
[pid 20806] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20806] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20806] write(4, "78", 2)           = 2
[pid 20806] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20806] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20806] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20806] exit_group(0)               = ?
[pid 20806] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20806, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20807 attached
, child_tidptr=0x555555af35d0) = 20807
[pid 20807] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20807] setpgid(0, 0)               = 0
[pid 20807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20807] write(3, "1000", 4)         = 4
[pid 20807] close(3)                    = 0
[pid 20807] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20807] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20807] write(4, "78", 2)           = 2
[pid 20807] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20807] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20807] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20807] exit_group(0)               = ?
[pid 20807] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20807, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20808 attached
, child_tidptr=0x555555af35d0) = 20808
[pid 20808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20808] setpgid(0, 0)               = 0
[pid 20808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20808] write(3, "1000", 4)         = 4
[pid 20808] close(3)                    = 0
[pid 20808] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20808] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20808] write(4, "78", 2)           = 2
[pid 20808] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20808] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20808] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20808] exit_group(0)               = ?
[pid 20808] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20808, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20809 attached
, child_tidptr=0x555555af35d0) = 20809
[pid 20809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20809] setpgid(0, 0)               = 0
[pid 20809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20809] write(3, "1000", 4)         = 4
[pid 20809] close(3)                    = 0
[pid 20809] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20809] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20809] write(4, "78", 2)           = 2
[pid 20809] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20809] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20809] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20809] exit_group(0)               = ?
[pid 20809] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20809, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20810 attached
, child_tidptr=0x555555af35d0) = 20810
[pid 20810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20810] setpgid(0, 0)               = 0
[pid 20810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20810] write(3, "1000", 4)         = 4
[pid 20810] close(3)                    = 0
[pid 20810] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20810] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20810] write(4, "78", 2)           = 2
[pid 20810] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20810] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20810] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20810] exit_group(0)               = ?
[pid 20810] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20810, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20811
./strace-static-x86_64: Process 20811 attached
[pid 20811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20811] setpgid(0, 0)               = 0
[pid 20811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20811] write(3, "1000", 4)         = 4
[pid 20811] close(3)                    = 0
[pid 20811] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20811] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20811] write(4, "78", 2)           = 2
[pid 20811] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20811] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20811] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20811] exit_group(0)               = ?
[pid 20811] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20811, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20812 attached
, child_tidptr=0x555555af35d0) = 20812
[pid 20812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20812] setpgid(0, 0)               = 0
[pid 20812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20812] write(3, "1000", 4)         = 4
[pid 20812] close(3)                    = 0
[pid 20812] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20812] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20812] write(4, "78", 2)           = 2
[pid 20812] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20812] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20812] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20812] exit_group(0)               = ?
[pid 20812] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20812, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20813 attached
, child_tidptr=0x555555af35d0) = 20813
[pid 20813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20813] setpgid(0, 0)               = 0
[pid 20813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20813] write(3, "1000", 4)         = 4
[pid 20813] close(3)                    = 0
[pid 20813] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20813] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20813] write(4, "78", 2)           = 2
[pid 20813] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20813] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20813] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20813] exit_group(0)               = ?
[pid 20813] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20813, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20814 attached
, child_tidptr=0x555555af35d0) = 20814
[pid 20814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20814] setpgid(0, 0)               = 0
[pid 20814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20814] write(3, "1000", 4)         = 4
[pid 20814] close(3)                    = 0
[pid 20814] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20814] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20814] write(4, "78", 2)           = 2
[pid 20814] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20814] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20814] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20814] exit_group(0)               = ?
[pid 20814] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20814, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20815 attached
, child_tidptr=0x555555af35d0) = 20815
[pid 20815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20815] setpgid(0, 0)               = 0
[pid 20815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20815] write(3, "1000", 4)         = 4
[pid 20815] close(3)                    = 0
[pid 20815] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20815] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20815] write(4, "78", 2)           = 2
[pid 20815] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20815] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20815] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20815] exit_group(0)               = ?
[pid 20815] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20815, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20816 attached
, child_tidptr=0x555555af35d0) = 20816
[pid 20816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20816] setpgid(0, 0)               = 0
[pid 20816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20816] write(3, "1000", 4)         = 4
[pid 20816] close(3)                    = 0
[pid 20816] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20816] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20816] write(4, "78", 2)           = 2
[pid 20816] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20816] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20816] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20816] exit_group(0)               = ?
[pid 20816] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20816, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20817
./strace-static-x86_64: Process 20817 attached
[pid 20817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20817] setpgid(0, 0)               = 0
[pid 20817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20817] write(3, "1000", 4)         = 4
[pid 20817] close(3)                    = 0
[pid 20817] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20817] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20817] write(4, "78", 2)           = 2
[pid 20817] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20817] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20817] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20817] exit_group(0)               = ?
[pid 20817] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20817, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20818 attached
, child_tidptr=0x555555af35d0) = 20818
[pid 20818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20818] setpgid(0, 0)               = 0
[pid 20818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20818] write(3, "1000", 4)         = 4
[pid 20818] close(3)                    = 0
[pid 20818] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20818] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20818] write(4, "78", 2)           = 2
[pid 20818] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20818] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20818] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20818] exit_group(0)               = ?
[pid 20818] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20818, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20819 attached
, child_tidptr=0x555555af35d0) = 20819
[pid 20819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20819] setpgid(0, 0)               = 0
[pid 20819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20819] write(3, "1000", 4)         = 4
[pid 20819] close(3)                    = 0
[pid 20819] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20819] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20819] write(4, "78", 2)           = 2
[pid 20819] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20819] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20819] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20819] exit_group(0)               = ?
[pid 20819] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20819, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20820 attached
, child_tidptr=0x555555af35d0) = 20820
[pid 20820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20820] setpgid(0, 0)               = 0
[pid 20820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20820] write(3, "1000", 4)         = 4
[pid 20820] close(3)                    = 0
[pid 20820] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20820] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20820] write(4, "78", 2)           = 2
[pid 20820] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20820] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20820] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20820] exit_group(0)               = ?
[pid 20820] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20820, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20821 attached
, child_tidptr=0x555555af35d0) = 20821
[pid 20821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20821] setpgid(0, 0)               = 0
[pid 20821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20821] write(3, "1000", 4)         = 4
[pid 20821] close(3)                    = 0
[pid 20821] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20821] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20821] write(4, "78", 2)           = 2
[pid 20821] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20821] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20821] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20821] exit_group(0)               = ?
[pid 20821] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20821, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20822 attached
, child_tidptr=0x555555af35d0) = 20822
[pid 20822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20822] setpgid(0, 0)               = 0
[pid 20822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20822] write(3, "1000", 4)         = 4
[pid 20822] close(3)                    = 0
[pid 20822] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20822] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20822] write(4, "78", 2)           = 2
[pid 20822] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20822] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20822] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20822] exit_group(0)               = ?
[pid 20822] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20822, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20823 attached
, child_tidptr=0x555555af35d0) = 20823
[pid 20823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20823] setpgid(0, 0)               = 0
[pid 20823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20823] write(3, "1000", 4)         = 4
[pid 20823] close(3)                    = 0
[pid 20823] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20823] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20823] write(4, "78", 2)           = 2
[pid 20823] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20823] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20823] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20823] exit_group(0)               = ?
[pid 20823] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20823, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20824 attached
, child_tidptr=0x555555af35d0) = 20824
[pid 20824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20824] setpgid(0, 0)               = 0
[pid 20824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20824] write(3, "1000", 4)         = 4
[pid 20824] close(3)                    = 0
[pid 20824] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20824] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20824] write(4, "78", 2)           = 2
[pid 20824] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20824] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20824] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20824] exit_group(0)               = ?
[pid 20824] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20824, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20825
./strace-static-x86_64: Process 20825 attached
[pid 20825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20825] setpgid(0, 0)               = 0
[pid 20825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20825] write(3, "1000", 4)         = 4
[pid 20825] close(3)                    = 0
[pid 20825] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20825] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20825] write(4, "78", 2)           = 2
[pid 20825] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20825] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20825] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20825] exit_group(0)               = ?
[pid 20825] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20825, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20826 attached
, child_tidptr=0x555555af35d0) = 20826
[pid 20826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20826] setpgid(0, 0)               = 0
[pid 20826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20826] write(3, "1000", 4)         = 4
[pid 20826] close(3)                    = 0
[pid 20826] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20826] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20826] write(4, "78", 2)           = 2
[pid 20826] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20826] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20826] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20826] exit_group(0)               = ?
[pid 20826] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20826, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20827
./strace-static-x86_64: Process 20827 attached
[pid 20827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20827] setpgid(0, 0)               = 0
[pid 20827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20827] write(3, "1000", 4)         = 4
[pid 20827] close(3)                    = 0
[pid 20827] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20827] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20827] write(4, "78", 2)           = 2
[pid 20827] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20827] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20827] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20827] exit_group(0)               = ?
[pid 20827] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20827, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20828 attached
, child_tidptr=0x555555af35d0) = 20828
[pid 20828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20828] setpgid(0, 0)               = 0
[pid 20828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20828] write(3, "1000", 4)         = 4
[pid 20828] close(3)                    = 0
[pid 20828] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20828] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20828] write(4, "78", 2)           = 2
[pid 20828] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20828] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20828] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20828] exit_group(0)               = ?
[pid 20828] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20828, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20829 attached
, child_tidptr=0x555555af35d0) = 20829
[pid 20829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20829] setpgid(0, 0)               = 0
[pid 20829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20829] write(3, "1000", 4)         = 4
[pid 20829] close(3)                    = 0
[pid 20829] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20829] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20829] write(4, "78", 2)           = 2
[pid 20829] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20829] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20829] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20829] exit_group(0)               = ?
[pid 20829] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20829, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20830 attached
, child_tidptr=0x555555af35d0) = 20830
[pid 20830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20830] setpgid(0, 0)               = 0
[pid 20830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20830] write(3, "1000", 4)         = 4
[pid 20830] close(3)                    = 0
[pid 20830] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20830] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20830] write(4, "78", 2)           = 2
[pid 20830] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20830] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20830] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20830] exit_group(0)               = ?
[pid 20830] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20830, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20831 attached
, child_tidptr=0x555555af35d0) = 20831
[pid 20831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20831] setpgid(0, 0)               = 0
[pid 20831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20831] write(3, "1000", 4)         = 4
[pid 20831] close(3)                    = 0
[pid 20831] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20831] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20831] write(4, "78", 2)           = 2
[pid 20831] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20831] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20831] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20831] exit_group(0)               = ?
[pid 20831] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20831, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20832 attached
, child_tidptr=0x555555af35d0) = 20832
[pid 20832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20832] setpgid(0, 0)               = 0
[pid 20832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20832] write(3, "1000", 4)         = 4
[pid 20832] close(3)                    = 0
[pid 20832] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20832] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20832] write(4, "78", 2)           = 2
[pid 20832] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20832] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20832] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20832] exit_group(0)               = ?
[pid 20832] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20832, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20833
./strace-static-x86_64: Process 20833 attached
[pid 20833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20833] setpgid(0, 0)               = 0
[pid 20833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20833] write(3, "1000", 4)         = 4
[pid 20833] close(3)                    = 0
[pid 20833] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20833] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20833] write(4, "78", 2)           = 2
[pid 20833] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20833] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20833] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20833] exit_group(0)               = ?
[pid 20833] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20833, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20834 attached
, child_tidptr=0x555555af35d0) = 20834
[pid 20834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20834] setpgid(0, 0)               = 0
[pid 20834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20834] write(3, "1000", 4)         = 4
[pid 20834] close(3)                    = 0
[pid 20834] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20834] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20834] write(4, "78", 2)           = 2
[pid 20834] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20834] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20834] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20834] exit_group(0)               = ?
[pid 20834] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20834, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20835 attached
, child_tidptr=0x555555af35d0) = 20835
[pid 20835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20835] setpgid(0, 0)               = 0
[pid 20835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20835] write(3, "1000", 4)         = 4
[pid 20835] close(3)                    = 0
[pid 20835] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20835] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20835] write(4, "78", 2)           = 2
[pid 20835] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20835] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20835] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20835] exit_group(0)               = ?
[pid 20835] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20835, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20836
./strace-static-x86_64: Process 20836 attached
[pid 20836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20836] setpgid(0, 0)               = 0
[pid 20836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20836] write(3, "1000", 4)         = 4
[pid 20836] close(3)                    = 0
[pid 20836] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20836] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20836] write(4, "78", 2)           = 2
[pid 20836] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20836] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20836] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20836] exit_group(0)               = ?
[pid 20836] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20836, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20837 attached
, child_tidptr=0x555555af35d0) = 20837
[pid 20837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20837] setpgid(0, 0)               = 0
[pid 20837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20837] write(3, "1000", 4)         = 4
[pid 20837] close(3)                    = 0
[pid 20837] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20837] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20837] write(4, "78", 2)           = 2
[pid 20837] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20837] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20837] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20837] exit_group(0)               = ?
[pid 20837] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20837, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20838 attached
, child_tidptr=0x555555af35d0) = 20838
[pid 20838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20838] setpgid(0, 0)               = 0
[pid 20838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20838] write(3, "1000", 4)         = 4
[pid 20838] close(3)                    = 0
[pid 20838] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20838] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20838] write(4, "78", 2)           = 2
[pid 20838] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20838] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20838] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20838] exit_group(0)               = ?
[pid 20838] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20838, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20839 attached
, child_tidptr=0x555555af35d0) = 20839
[pid 20839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20839] setpgid(0, 0)               = 0
[pid 20839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20839] write(3, "1000", 4)         = 4
[pid 20839] close(3)                    = 0
[pid 20839] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20839] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20839] write(4, "78", 2)           = 2
[pid 20839] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20839] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20839] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20839] exit_group(0)               = ?
[pid 20839] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20839, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20840 attached
, child_tidptr=0x555555af35d0) = 20840
[pid 20840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20840] setpgid(0, 0)               = 0
[pid 20840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20840] write(3, "1000", 4)         = 4
[pid 20840] close(3)                    = 0
[pid 20840] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20840] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20840] write(4, "78", 2)           = 2
[pid 20840] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20840] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20840] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20840] exit_group(0)               = ?
[pid 20840] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20840, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20841 attached
, child_tidptr=0x555555af35d0) = 20841
[pid 20841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20841] setpgid(0, 0)               = 0
[pid 20841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20841] write(3, "1000", 4)         = 4
[pid 20841] close(3)                    = 0
[pid 20841] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20841] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20841] write(4, "78", 2)           = 2
[pid 20841] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20841] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20841] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20841] exit_group(0)               = ?
[pid 20841] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20841, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20842 attached
, child_tidptr=0x555555af35d0) = 20842
[pid 20842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20842] setpgid(0, 0)               = 0
[pid 20842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20842] write(3, "1000", 4)         = 4
[pid 20842] close(3)                    = 0
[pid 20842] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20842] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20842] write(4, "78", 2)           = 2
[pid 20842] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20842] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20842] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20842] exit_group(0)               = ?
[pid 20842] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20842, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20843 attached
, child_tidptr=0x555555af35d0) = 20843
[pid 20843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20843] setpgid(0, 0)               = 0
[pid 20843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20843] write(3, "1000", 4)         = 4
[pid 20843] close(3)                    = 0
[pid 20843] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20843] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20843] write(4, "78", 2)           = 2
[pid 20843] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20843] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20843] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20843] exit_group(0)               = ?
[pid 20843] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20843, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20844 attached
, child_tidptr=0x555555af35d0) = 20844
[pid 20844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20844] setpgid(0, 0)               = 0
[pid 20844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20844] write(3, "1000", 4)         = 4
[pid 20844] close(3)                    = 0
[pid 20844] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20844] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20844] write(4, "78", 2)           = 2
[pid 20844] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20844] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20844] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20844] exit_group(0)               = ?
[pid 20844] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20844, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20845 attached
, child_tidptr=0x555555af35d0) = 20845
[pid 20845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20845] setpgid(0, 0)               = 0
[pid 20845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20845] write(3, "1000", 4)         = 4
[pid 20845] close(3)                    = 0
[pid 20845] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20845] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20845] write(4, "78", 2)           = 2
[pid 20845] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20845] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20845] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20845] exit_group(0)               = ?
[pid 20845] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20845, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20846
./strace-static-x86_64: Process 20846 attached
[pid 20846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20846] setpgid(0, 0)               = 0
[pid 20846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20846] write(3, "1000", 4)         = 4
[pid 20846] close(3)                    = 0
[pid 20846] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20846] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20846] write(4, "78", 2)           = 2
[pid 20846] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20846] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20846] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20846] exit_group(0)               = ?
[pid 20846] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20846, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20847 attached
, child_tidptr=0x555555af35d0) = 20847
[pid 20847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20847] setpgid(0, 0)               = 0
[pid 20847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20847] write(3, "1000", 4)         = 4
[pid 20847] close(3)                    = 0
[pid 20847] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20847] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20847] write(4, "78", 2)           = 2
[pid 20847] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20847] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20847] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20847] exit_group(0)               = ?
[pid 20847] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20847, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20848 attached
, child_tidptr=0x555555af35d0) = 20848
[pid 20848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20848] setpgid(0, 0)               = 0
[pid 20848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20848] write(3, "1000", 4)         = 4
[pid 20848] close(3)                    = 0
[pid 20848] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20848] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20848] write(4, "78", 2)           = 2
[pid 20848] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20848] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20848] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20848] exit_group(0)               = ?
[pid 20848] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20848, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20849 attached
, child_tidptr=0x555555af35d0) = 20849
[pid 20849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20849] setpgid(0, 0)               = 0
[pid 20849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20849] write(3, "1000", 4)         = 4
[pid 20849] close(3)                    = 0
[pid 20849] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20849] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20849] write(4, "78", 2)           = 2
[pid 20849] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20849] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20849] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20849] exit_group(0)               = ?
[pid 20849] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20849, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20850
./strace-static-x86_64: Process 20850 attached
[pid 20850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20850] setpgid(0, 0)               = 0
[pid 20850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20850] write(3, "1000", 4)         = 4
[pid 20850] close(3)                    = 0
[pid 20850] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20850] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20850] write(4, "78", 2)           = 2
[pid 20850] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20850] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20850] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20850] exit_group(0)               = ?
[pid 20850] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20850, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20851
./strace-static-x86_64: Process 20851 attached
[pid 20851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20851] setpgid(0, 0)               = 0
[pid 20851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20851] write(3, "1000", 4)         = 4
[pid 20851] close(3)                    = 0
[pid 20851] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20851] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20851] write(4, "78", 2)           = 2
[pid 20851] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20851] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20851] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20851] exit_group(0)               = ?
[pid 20851] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20851, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20852 attached
, child_tidptr=0x555555af35d0) = 20852
[pid 20852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20852] setpgid(0, 0)               = 0
[pid 20852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20852] write(3, "1000", 4)         = 4
[pid 20852] close(3)                    = 0
[pid 20852] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20852] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20852] write(4, "78", 2)           = 2
[pid 20852] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20852] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20852] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20852] exit_group(0)               = ?
[pid 20852] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20852, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20853
./strace-static-x86_64: Process 20853 attached
[pid 20853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20853] setpgid(0, 0)               = 0
[pid 20853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20853] write(3, "1000", 4)         = 4
[pid 20853] close(3)                    = 0
[pid 20853] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20853] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20853] write(4, "78", 2)           = 2
[pid 20853] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20853] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20853] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20853] exit_group(0)               = ?
[pid 20853] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20853, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20854 attached
, child_tidptr=0x555555af35d0) = 20854
[pid 20854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20854] setpgid(0, 0)               = 0
[pid 20854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20854] write(3, "1000", 4)         = 4
[pid 20854] close(3)                    = 0
[pid 20854] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20854] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20854] write(4, "78", 2)           = 2
[pid 20854] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20854] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20854] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20854] exit_group(0)               = ?
[pid 20854] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20854, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20855 attached
, child_tidptr=0x555555af35d0) = 20855
[pid 20855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20855] setpgid(0, 0)               = 0
[pid 20855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20855] write(3, "1000", 4)         = 4
[pid 20855] close(3)                    = 0
[pid 20855] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20855] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20855] write(4, "78", 2)           = 2
[pid 20855] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20855] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20855] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20855] exit_group(0)               = ?
[pid 20855] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20855, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20856 attached
, child_tidptr=0x555555af35d0) = 20856
[pid 20856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20856] setpgid(0, 0)               = 0
[pid 20856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20856] write(3, "1000", 4)         = 4
[pid 20856] close(3)                    = 0
[pid 20856] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20856] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20856] write(4, "78", 2)           = 2
[pid 20856] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20856] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20856] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20856] exit_group(0)               = ?
[pid 20856] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20856, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20857 attached
, child_tidptr=0x555555af35d0) = 20857
[pid 20857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20857] setpgid(0, 0)               = 0
[pid 20857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20857] write(3, "1000", 4)         = 4
[pid 20857] close(3)                    = 0
[pid 20857] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20857] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20857] write(4, "78", 2)           = 2
[pid 20857] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20857] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20857] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20857] exit_group(0)               = ?
[pid 20857] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20857, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20858 attached
, child_tidptr=0x555555af35d0) = 20858
[pid 20858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20858] setpgid(0, 0)               = 0
[pid 20858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20858] write(3, "1000", 4)         = 4
[pid 20858] close(3)                    = 0
[pid 20858] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20858] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20858] write(4, "78", 2)           = 2
[pid 20858] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20858] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20858] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20858] exit_group(0)               = ?
[pid 20858] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20858, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20859 attached
, child_tidptr=0x555555af35d0) = 20859
[pid 20859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20859] setpgid(0, 0)               = 0
[pid 20859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20859] write(3, "1000", 4)         = 4
[pid 20859] close(3)                    = 0
[pid 20859] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20859] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20859] write(4, "78", 2)           = 2
[pid 20859] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20859] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20859] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20859] exit_group(0)               = ?
[pid 20859] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20859, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20860
./strace-static-x86_64: Process 20860 attached
[pid 20860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20860] setpgid(0, 0)               = 0
[pid 20860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20860] write(3, "1000", 4)         = 4
[pid 20860] close(3)                    = 0
[pid 20860] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20860] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20860] write(4, "78", 2)           = 2
[pid 20860] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20860] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20860] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20860] exit_group(0)               = ?
[pid 20860] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20860, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20861 attached
, child_tidptr=0x555555af35d0) = 20861
[pid 20861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20861] setpgid(0, 0)               = 0
[pid 20861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20861] write(3, "1000", 4)         = 4
[pid 20861] close(3)                    = 0
[pid 20861] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20861] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20861] write(4, "78", 2)           = 2
[pid 20861] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20861] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20861] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20861] exit_group(0)               = ?
[pid 20861] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20861, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20862 attached
, child_tidptr=0x555555af35d0) = 20862
[pid 20862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20862] setpgid(0, 0)               = 0
[pid 20862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20862] write(3, "1000", 4)         = 4
[pid 20862] close(3)                    = 0
[pid 20862] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20862] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20862] write(4, "78", 2)           = 2
[pid 20862] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20862] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20862] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20862] exit_group(0)               = ?
[pid 20862] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20862, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20863 attached
, child_tidptr=0x555555af35d0) = 20863
[pid 20863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20863] setpgid(0, 0)               = 0
[pid 20863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20863] write(3, "1000", 4)         = 4
[pid 20863] close(3)                    = 0
[pid 20863] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20863] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20863] write(4, "78", 2)           = 2
[pid 20863] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20863] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20863] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20863] exit_group(0)               = ?
[pid 20863] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20863, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20864 attached
, child_tidptr=0x555555af35d0) = 20864
[pid 20864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20864] setpgid(0, 0)               = 0
[pid 20864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20864] write(3, "1000", 4)         = 4
[pid 20864] close(3)                    = 0
[pid 20864] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20864] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20864] write(4, "78", 2)           = 2
[pid 20864] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20864] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20864] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20864] exit_group(0)               = ?
[pid 20864] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20864, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20865
./strace-static-x86_64: Process 20865 attached
[pid 20865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20865] setpgid(0, 0)               = 0
[pid 20865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20865] write(3, "1000", 4)         = 4
[pid 20865] close(3)                    = 0
[pid 20865] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20865] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20865] write(4, "78", 2)           = 2
[pid 20865] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20865] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20865] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20865] exit_group(0)               = ?
[pid 20865] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20865, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20866 attached
, child_tidptr=0x555555af35d0) = 20866
[pid 20866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20866] setpgid(0, 0)               = 0
[pid 20866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20866] write(3, "1000", 4)         = 4
[pid 20866] close(3)                    = 0
[pid 20866] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20866] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20866] write(4, "78", 2)           = 2
[pid 20866] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20866] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20866] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20866] exit_group(0)               = ?
[pid 20866] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20866, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20867 attached
, child_tidptr=0x555555af35d0) = 20867
[pid 20867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20867] setpgid(0, 0)               = 0
[pid 20867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20867] write(3, "1000", 4)         = 4
[pid 20867] close(3)                    = 0
[pid 20867] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20867] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20867] write(4, "78", 2)           = 2
[pid 20867] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20867] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20867] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20867] exit_group(0)               = ?
[pid 20867] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20867, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20868
./strace-static-x86_64: Process 20868 attached
[pid 20868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20868] setpgid(0, 0)               = 0
[pid 20868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20868] write(3, "1000", 4)         = 4
[pid 20868] close(3)                    = 0
[pid 20868] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20868] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20868] write(4, "78", 2)           = 2
[pid 20868] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20868] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20868] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20868] exit_group(0)               = ?
[pid 20868] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20868, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20869
./strace-static-x86_64: Process 20869 attached
[pid 20869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20869] setpgid(0, 0)               = 0
[pid 20869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20869] write(3, "1000", 4)         = 4
[pid 20869] close(3)                    = 0
[pid 20869] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20869] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20869] write(4, "78", 2)           = 2
[pid 20869] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20869] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20869] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20869] exit_group(0)               = ?
[pid 20869] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20869, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20870 attached
, child_tidptr=0x555555af35d0) = 20870
[pid 20870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20870] setpgid(0, 0)               = 0
[pid 20870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20870] write(3, "1000", 4)         = 4
[pid 20870] close(3)                    = 0
[pid 20870] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20870] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20870] write(4, "78", 2)           = 2
[pid 20870] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20870] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20870] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20870] exit_group(0)               = ?
[pid 20870] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20870, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20871
./strace-static-x86_64: Process 20871 attached
[pid 20871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20871] setpgid(0, 0)               = 0
[pid 20871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20871] write(3, "1000", 4)         = 4
[pid 20871] close(3)                    = 0
[pid 20871] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20871] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20871] write(4, "78", 2)           = 2
[pid 20871] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20871] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20871] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20871] exit_group(0)               = ?
[pid 20871] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20871, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20872 attached
, child_tidptr=0x555555af35d0) = 20872
[pid 20872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20872] setpgid(0, 0)               = 0
[pid 20872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20872] write(3, "1000", 4)         = 4
[pid 20872] close(3)                    = 0
[pid 20872] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20872] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20872] write(4, "78", 2)           = 2
[pid 20872] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20872] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20872] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20872] exit_group(0)               = ?
[pid 20872] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20872, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20873 attached
, child_tidptr=0x555555af35d0) = 20873
[pid 20873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20873] setpgid(0, 0)               = 0
[pid 20873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20873] write(3, "1000", 4)         = 4
[pid 20873] close(3)                    = 0
[pid 20873] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20873] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20873] write(4, "78", 2)           = 2
[pid 20873] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20873] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20873] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20873] exit_group(0)               = ?
[pid 20873] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20873, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20874 attached
, child_tidptr=0x555555af35d0) = 20874
[pid 20874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20874] setpgid(0, 0)               = 0
[pid 20874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20874] write(3, "1000", 4)         = 4
[pid 20874] close(3)                    = 0
[pid 20874] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20874] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20874] write(4, "78", 2)           = 2
[pid 20874] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20874] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20874] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20874] exit_group(0)               = ?
[pid 20874] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20874, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20875
./strace-static-x86_64: Process 20875 attached
[pid 20875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20875] setpgid(0, 0)               = 0
[pid 20875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20875] write(3, "1000", 4)         = 4
[pid 20875] close(3)                    = 0
[pid 20875] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20875] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20875] write(4, "78", 2)           = 2
[pid 20875] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20875] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20875] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20875] exit_group(0)               = ?
[pid 20875] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20875, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20876
./strace-static-x86_64: Process 20876 attached
[pid 20876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20876] setpgid(0, 0)               = 0
[pid 20876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20876] write(3, "1000", 4)         = 4
[pid 20876] close(3)                    = 0
[pid 20876] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20876] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20876] write(4, "78", 2)           = 2
[pid 20876] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20876] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20876] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20876] exit_group(0)               = ?
[pid 20876] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20876, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20877
./strace-static-x86_64: Process 20877 attached
[pid 20877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20877] setpgid(0, 0)               = 0
[pid 20877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20877] write(3, "1000", 4)         = 4
[pid 20877] close(3)                    = 0
[pid 20877] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20877] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20877] write(4, "78", 2)           = 2
[pid 20877] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20877] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20877] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20877] exit_group(0)               = ?
[pid 20877] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20877, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20878 attached
, child_tidptr=0x555555af35d0) = 20878
[pid 20878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20878] setpgid(0, 0)               = 0
[pid 20878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20878] write(3, "1000", 4)         = 4
[pid 20878] close(3)                    = 0
[pid 20878] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20878] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20878] write(4, "78", 2)           = 2
[pid 20878] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20878] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20878] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20878] exit_group(0)               = ?
[pid 20878] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20878, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20879
./strace-static-x86_64: Process 20879 attached
[pid 20879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20879] setpgid(0, 0)               = 0
[pid 20879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20879] write(3, "1000", 4)         = 4
[pid 20879] close(3)                    = 0
[pid 20879] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20879] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20879] write(4, "78", 2)           = 2
[pid 20879] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20879] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20879] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20879] exit_group(0)               = ?
[pid 20879] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20879, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20880
./strace-static-x86_64: Process 20880 attached
[pid 20880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20880] setpgid(0, 0)               = 0
[pid 20880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20880] write(3, "1000", 4)         = 4
[pid 20880] close(3)                    = 0
[pid 20880] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20880] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20880] write(4, "78", 2)           = 2
[pid 20880] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20880] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20880] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20880] exit_group(0)               = ?
[pid 20880] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20880, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20881 attached
, child_tidptr=0x555555af35d0) = 20881
[pid 20881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20881] setpgid(0, 0)               = 0
[pid 20881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20881] write(3, "1000", 4)         = 4
[pid 20881] close(3)                    = 0
[pid 20881] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20881] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20881] write(4, "78", 2)           = 2
[pid 20881] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20881] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20881] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20881] exit_group(0)               = ?
[pid 20881] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20881, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20882
./strace-static-x86_64: Process 20882 attached
[pid 20882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20882] setpgid(0, 0)               = 0
[pid 20882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20882] write(3, "1000", 4)         = 4
[pid 20882] close(3)                    = 0
[pid 20882] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20882] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20882] write(4, "78", 2)           = 2
[pid 20882] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20882] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20882] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20882] exit_group(0)               = ?
[pid 20882] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20882, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20883 attached
, child_tidptr=0x555555af35d0) = 20883
[pid 20883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20883] setpgid(0, 0)               = 0
[pid 20883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20883] write(3, "1000", 4)         = 4
[pid 20883] close(3)                    = 0
[pid 20883] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20883] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20883] write(4, "78", 2)           = 2
[pid 20883] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20883] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20883] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20883] exit_group(0)               = ?
[pid 20883] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20883, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20884 attached
, child_tidptr=0x555555af35d0) = 20884
[pid 20884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20884] setpgid(0, 0)               = 0
[pid 20884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20884] write(3, "1000", 4)         = 4
[pid 20884] close(3)                    = 0
[pid 20884] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20884] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20884] write(4, "78", 2)           = 2
[pid 20884] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20884] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20884] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20884] exit_group(0)               = ?
[pid 20884] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20884, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20885 attached
, child_tidptr=0x555555af35d0) = 20885
[pid 20885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20885] setpgid(0, 0)               = 0
[pid 20885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20885] write(3, "1000", 4)         = 4
[pid 20885] close(3)                    = 0
[pid 20885] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20885] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20885] write(4, "78", 2)           = 2
[pid 20885] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20885] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20885] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20885] exit_group(0)               = ?
[pid 20885] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20885, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20886
./strace-static-x86_64: Process 20886 attached
[pid 20886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20886] setpgid(0, 0)               = 0
[pid 20886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20886] write(3, "1000", 4)         = 4
[pid 20886] close(3)                    = 0
[pid 20886] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20886] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20886] write(4, "78", 2)           = 2
[pid 20886] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20886] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20886] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20886] exit_group(0)               = ?
[pid 20886] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20886, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20887
./strace-static-x86_64: Process 20887 attached
[pid 20887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20887] setpgid(0, 0)               = 0
[pid 20887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20887] write(3, "1000", 4)         = 4
[pid 20887] close(3)                    = 0
[pid 20887] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20887] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20887] write(4, "78", 2)           = 2
[pid 20887] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20887] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20887] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20887] exit_group(0)               = ?
[pid 20887] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20887, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20888 attached
, child_tidptr=0x555555af35d0) = 20888
[pid 20888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20888] setpgid(0, 0)               = 0
[pid 20888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20888] write(3, "1000", 4)         = 4
[pid 20888] close(3)                    = 0
[pid 20888] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20888] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20888] write(4, "78", 2)           = 2
[pid 20888] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20888] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20888] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20888] exit_group(0)               = ?
[pid 20888] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20888, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20889 attached
, child_tidptr=0x555555af35d0) = 20889
[pid 20889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20889] setpgid(0, 0)               = 0
[pid 20889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20889] write(3, "1000", 4)         = 4
[pid 20889] close(3)                    = 0
[pid 20889] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20889] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20889] write(4, "78", 2)           = 2
[pid 20889] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20889] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20889] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20889] exit_group(0)               = ?
[pid 20889] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20889, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20890
./strace-static-x86_64: Process 20890 attached
[pid 20890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20890] setpgid(0, 0)               = 0
[pid 20890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20890] write(3, "1000", 4)         = 4
[pid 20890] close(3)                    = 0
[pid 20890] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20890] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20890] write(4, "78", 2)           = 2
[pid 20890] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20890] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20890] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20890] exit_group(0)               = ?
[pid 20890] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20890, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20891
./strace-static-x86_64: Process 20891 attached
[pid 20891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20891] setpgid(0, 0)               = 0
[pid 20891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20891] write(3, "1000", 4)         = 4
[pid 20891] close(3)                    = 0
[pid 20891] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20891] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20891] write(4, "78", 2)           = 2
[pid 20891] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20891] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20891] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20891] exit_group(0)               = ?
[pid 20891] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20891, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20892
./strace-static-x86_64: Process 20892 attached
[pid 20892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20892] setpgid(0, 0)               = 0
[pid 20892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20892] write(3, "1000", 4)         = 4
[pid 20892] close(3)                    = 0
[pid 20892] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20892] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20892] write(4, "78", 2)           = 2
[pid 20892] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20892] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20892] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20892] exit_group(0)               = ?
[pid 20892] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20892, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20893 attached
, child_tidptr=0x555555af35d0) = 20893
[pid 20893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20893] setpgid(0, 0)               = 0
[pid 20893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20893] write(3, "1000", 4)         = 4
[pid 20893] close(3)                    = 0
[pid 20893] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20893] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20893] write(4, "78", 2)           = 2
[pid 20893] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20893] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20893] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20893] exit_group(0)               = ?
[pid 20893] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20893, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20894 attached
, child_tidptr=0x555555af35d0) = 20894
[pid 20894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20894] setpgid(0, 0)               = 0
[pid 20894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20894] write(3, "1000", 4)         = 4
[pid 20894] close(3)                    = 0
[pid 20894] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20894] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20894] write(4, "78", 2)           = 2
[pid 20894] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20894] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20894] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20894] exit_group(0)               = ?
[pid 20894] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20894, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20895 attached
, child_tidptr=0x555555af35d0) = 20895
[pid 20895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20895] setpgid(0, 0)               = 0
[pid 20895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20895] write(3, "1000", 4)         = 4
[pid 20895] close(3)                    = 0
[pid 20895] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20895] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20895] write(4, "78", 2)           = 2
[pid 20895] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20895] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20895] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20895] exit_group(0)               = ?
[pid 20895] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20895, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20896 attached
, child_tidptr=0x555555af35d0) = 20896
[pid 20896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20896] setpgid(0, 0)               = 0
[pid 20896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20896] write(3, "1000", 4)         = 4
[pid 20896] close(3)                    = 0
[pid 20896] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20896] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20896] write(4, "78", 2)           = 2
[pid 20896] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20896] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20896] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20896] exit_group(0)               = ?
[pid 20896] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20896, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20897 attached
, child_tidptr=0x555555af35d0) = 20897
[pid 20897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20897] setpgid(0, 0)               = 0
[pid 20897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20897] write(3, "1000", 4)         = 4
[pid 20897] close(3)                    = 0
[pid 20897] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20897] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20897] write(4, "78", 2)           = 2
[pid 20897] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20897] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20897] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20897] exit_group(0)               = ?
[pid 20897] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20897, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20898
./strace-static-x86_64: Process 20898 attached
[pid 20898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20898] setpgid(0, 0)               = 0
[pid 20898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20898] write(3, "1000", 4)         = 4
[pid 20898] close(3)                    = 0
[pid 20898] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20898] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20898] write(4, "78", 2)           = 2
[pid 20898] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20898] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20898] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20898] exit_group(0)               = ?
[pid 20898] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20898, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20899 attached
, child_tidptr=0x555555af35d0) = 20899
[pid 20899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20899] setpgid(0, 0)               = 0
[pid 20899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20899] write(3, "1000", 4)         = 4
[pid 20899] close(3)                    = 0
[pid 20899] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20899] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20899] write(4, "78", 2)           = 2
[pid 20899] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20899] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20899] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20899] exit_group(0)               = ?
[pid 20899] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20899, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20900 attached
, child_tidptr=0x555555af35d0) = 20900
[pid 20900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20900] setpgid(0, 0)               = 0
[pid 20900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20900] write(3, "1000", 4)         = 4
[pid 20900] close(3)                    = 0
[pid 20900] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20900] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20900] write(4, "78", 2)           = 2
[pid 20900] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20900] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20900] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20900] exit_group(0)               = ?
[pid 20900] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20900, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20901
./strace-static-x86_64: Process 20901 attached
[pid 20901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20901] setpgid(0, 0)               = 0
[pid 20901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20901] write(3, "1000", 4)         = 4
[pid 20901] close(3)                    = 0
[pid 20901] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20901] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20901] write(4, "78", 2)           = 2
[pid 20901] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20901] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20901] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20901] exit_group(0)               = ?
[pid 20901] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20901, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20902 attached
, child_tidptr=0x555555af35d0) = 20902
[pid 20902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20902] setpgid(0, 0)               = 0
[pid 20902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20902] write(3, "1000", 4)         = 4
[pid 20902] close(3)                    = 0
[pid 20902] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20902] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20902] write(4, "78", 2)           = 2
[pid 20902] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20902] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20902] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20902] exit_group(0)               = ?
[pid 20902] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20902, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20903
./strace-static-x86_64: Process 20903 attached
[pid 20903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20903] setpgid(0, 0)               = 0
[pid 20903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20903] write(3, "1000", 4)         = 4
[pid 20903] close(3)                    = 0
[pid 20903] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20903] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20903] write(4, "78", 2)           = 2
[pid 20903] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20903] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20903] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20903] exit_group(0)               = ?
[pid 20903] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20903, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20904
./strace-static-x86_64: Process 20904 attached
[pid 20904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20904] setpgid(0, 0)               = 0
[pid 20904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20904] write(3, "1000", 4)         = 4
[pid 20904] close(3)                    = 0
[pid 20904] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20904] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20904] write(4, "78", 2)           = 2
[pid 20904] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20904] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20904] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20904] exit_group(0)               = ?
[pid 20904] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20904, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20905
./strace-static-x86_64: Process 20905 attached
[pid 20905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20905] setpgid(0, 0)               = 0
[pid 20905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20905] write(3, "1000", 4)         = 4
[pid 20905] close(3)                    = 0
[pid 20905] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20905] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20905] write(4, "78", 2)           = 2
[pid 20905] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20905] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20905] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20905] exit_group(0)               = ?
[pid 20905] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20905, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20906 attached
, child_tidptr=0x555555af35d0) = 20906
[pid 20906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20906] setpgid(0, 0)               = 0
[pid 20906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20906] write(3, "1000", 4)         = 4
[pid 20906] close(3)                    = 0
[pid 20906] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20906] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20906] write(4, "78", 2)           = 2
[pid 20906] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20906] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20906] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20906] exit_group(0)               = ?
[pid 20906] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20906, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20907 attached
, child_tidptr=0x555555af35d0) = 20907
[pid 20907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20907] setpgid(0, 0)               = 0
[pid 20907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20907] write(3, "1000", 4)         = 4
[pid 20907] close(3)                    = 0
[pid 20907] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20907] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20907] write(4, "78", 2)           = 2
[pid 20907] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20907] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20907] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20907] exit_group(0)               = ?
[pid 20907] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20907, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20908
./strace-static-x86_64: Process 20908 attached
[pid 20908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20908] setpgid(0, 0)               = 0
[pid 20908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20908] write(3, "1000", 4)         = 4
[pid 20908] close(3)                    = 0
[pid 20908] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20908] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20908] write(4, "78", 2)           = 2
[pid 20908] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20908] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20908] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20908] exit_group(0)               = ?
[pid 20908] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20908, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20909 attached
, child_tidptr=0x555555af35d0) = 20909
[pid 20909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20909] setpgid(0, 0)               = 0
[pid 20909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20909] write(3, "1000", 4)         = 4
[pid 20909] close(3)                    = 0
[pid 20909] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20909] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20909] write(4, "78", 2)           = 2
[pid 20909] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20909] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20909] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20909] exit_group(0)               = ?
[pid 20909] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20909, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20910 attached
, child_tidptr=0x555555af35d0) = 20910
[pid 20910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20910] setpgid(0, 0)               = 0
[pid 20910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20910] write(3, "1000", 4)         = 4
[pid 20910] close(3)                    = 0
[pid 20910] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20910] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20910] write(4, "78", 2)           = 2
[pid 20910] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20910] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20910] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20910] exit_group(0)               = ?
[pid 20910] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20910, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20911
./strace-static-x86_64: Process 20911 attached
[pid 20911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20911] setpgid(0, 0)               = 0
[pid 20911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20911] write(3, "1000", 4)         = 4
[pid 20911] close(3)                    = 0
[pid 20911] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20911] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20911] write(4, "78", 2)           = 2
[pid 20911] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20911] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20911] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20911] exit_group(0)               = ?
[pid 20911] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20911, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20912 attached
, child_tidptr=0x555555af35d0) = 20912
[pid 20912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20912] setpgid(0, 0)               = 0
[pid 20912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20912] write(3, "1000", 4)         = 4
[pid 20912] close(3)                    = 0
[pid 20912] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20912] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20912] write(4, "78", 2)           = 2
[pid 20912] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20912] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20912] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20912] exit_group(0)               = ?
[pid 20912] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20912, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20913
./strace-static-x86_64: Process 20913 attached
[pid 20913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20913] setpgid(0, 0)               = 0
[pid 20913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20913] write(3, "1000", 4)         = 4
[pid 20913] close(3)                    = 0
[pid 20913] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20913] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20913] write(4, "78", 2)           = 2
[pid 20913] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20913] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20913] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20913] exit_group(0)               = ?
[pid 20913] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20913, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20914 attached
, child_tidptr=0x555555af35d0) = 20914
[pid 20914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20914] setpgid(0, 0)               = 0
[pid 20914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20914] write(3, "1000", 4)         = 4
[pid 20914] close(3)                    = 0
[pid 20914] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20914] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20914] write(4, "78", 2)           = 2
[pid 20914] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20914] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20914] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20914] exit_group(0)               = ?
[pid 20914] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20914, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20915 attached
, child_tidptr=0x555555af35d0) = 20915
[pid 20915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20915] setpgid(0, 0)               = 0
[pid 20915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20915] write(3, "1000", 4)         = 4
[pid 20915] close(3)                    = 0
[pid 20915] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20915] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20915] write(4, "78", 2)           = 2
[pid 20915] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20915] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20915] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20915] exit_group(0)               = ?
[pid 20915] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20915, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20916 attached
, child_tidptr=0x555555af35d0) = 20916
[pid 20916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20916] setpgid(0, 0)               = 0
[pid 20916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20916] write(3, "1000", 4)         = 4
[pid 20916] close(3)                    = 0
[pid 20916] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20916] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20916] write(4, "78", 2)           = 2
[pid 20916] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20916] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20916] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20916] exit_group(0)               = ?
[pid 20916] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20916, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20917 attached
, child_tidptr=0x555555af35d0) = 20917
[pid 20917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20917] setpgid(0, 0)               = 0
[pid 20917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20917] write(3, "1000", 4)         = 4
[pid 20917] close(3)                    = 0
[pid 20917] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20917] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20917] write(4, "78", 2)           = 2
[pid 20917] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20917] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20917] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20917] exit_group(0)               = ?
[pid 20917] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20917, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20918
./strace-static-x86_64: Process 20918 attached
[pid 20918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20918] setpgid(0, 0)               = 0
[pid 20918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20918] write(3, "1000", 4)         = 4
[pid 20918] close(3)                    = 0
[pid 20918] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20918] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20918] write(4, "78", 2)           = 2
[pid 20918] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20918] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20918] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20918] exit_group(0)               = ?
[pid 20918] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20918, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20919 attached
, child_tidptr=0x555555af35d0) = 20919
[pid 20919] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20919] setpgid(0, 0)               = 0
[pid 20919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20919] write(3, "1000", 4)         = 4
[pid 20919] close(3)                    = 0
[pid 20919] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20919] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20919] write(4, "78", 2)           = 2
[pid 20919] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20919] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20919] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20919] exit_group(0)               = ?
[pid 20919] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20919, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20920
./strace-static-x86_64: Process 20920 attached
[pid 20920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20920] setpgid(0, 0)               = 0
[pid 20920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20920] write(3, "1000", 4)         = 4
[pid 20920] close(3)                    = 0
[pid 20920] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20920] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20920] write(4, "78", 2)           = 2
[pid 20920] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20920] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20920] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20920] exit_group(0)               = ?
[pid 20920] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20920, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20921
./strace-static-x86_64: Process 20921 attached
[pid 20921] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20921] setpgid(0, 0)               = 0
[pid 20921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20921] write(3, "1000", 4)         = 4
[pid 20921] close(3)                    = 0
[pid 20921] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20921] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20921] write(4, "78", 2)           = 2
[pid 20921] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20921] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20921] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20921] exit_group(0)               = ?
[pid 20921] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20921, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20922
./strace-static-x86_64: Process 20922 attached
[pid 20922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20922] setpgid(0, 0)               = 0
[pid 20922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20922] write(3, "1000", 4)         = 4
[pid 20922] close(3)                    = 0
[pid 20922] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20922] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20922] write(4, "78", 2)           = 2
[pid 20922] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20922] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20922] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20922] exit_group(0)               = ?
[pid 20922] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20922, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20923
./strace-static-x86_64: Process 20923 attached
[pid 20923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20923] setpgid(0, 0)               = 0
[pid 20923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20923] write(3, "1000", 4)         = 4
[pid 20923] close(3)                    = 0
[pid 20923] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20923] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20923] write(4, "78", 2)           = 2
[pid 20923] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20923] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20923] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20923] exit_group(0)               = ?
[pid 20923] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20923, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20924
./strace-static-x86_64: Process 20924 attached
[pid 20924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20924] setpgid(0, 0)               = 0
[pid 20924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20924] write(3, "1000", 4)         = 4
[pid 20924] close(3)                    = 0
[pid 20924] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20924] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20924] write(4, "78", 2)           = 2
[pid 20924] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20924] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20924] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20924] exit_group(0)               = ?
[pid 20924] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20924, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20925 attached
 <unfinished ...>
[pid 20925] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 20925
[pid 20925] <... prctl resumed>)        = 0
[pid 20925] setpgid(0, 0)               = 0
[pid 20925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20925] write(3, "1000", 4)         = 4
[pid 20925] close(3)                    = 0
[pid 20925] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20925] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20925] write(4, "78", 2)           = 2
[pid 20925] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20925] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20925] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20925] exit_group(0)               = ?
[pid 20925] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20925, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20926 attached
, child_tidptr=0x555555af35d0) = 20926
[pid 20926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20926] setpgid(0, 0)               = 0
[pid 20926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20926] write(3, "1000", 4)         = 4
[pid 20926] close(3)                    = 0
[pid 20926] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20926] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20926] write(4, "78", 2)           = 2
[pid 20926] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20926] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20926] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20926] exit_group(0)               = ?
[pid 20926] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20926, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20927 attached
, child_tidptr=0x555555af35d0) = 20927
[pid 20927] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20927] setpgid(0, 0)               = 0
[pid 20927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20927] write(3, "1000", 4)         = 4
[pid 20927] close(3)                    = 0
[pid 20927] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20927] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20927] write(4, "78", 2)           = 2
[pid 20927] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20927] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20927] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20927] exit_group(0)               = ?
[pid 20927] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20927, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20928 attached
, child_tidptr=0x555555af35d0) = 20928
[pid 20928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20928] setpgid(0, 0)               = 0
[pid 20928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20928] write(3, "1000", 4)         = 4
[pid 20928] close(3)                    = 0
[pid 20928] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20928] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20928] write(4, "78", 2)           = 2
[pid 20928] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20928] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20928] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20928] exit_group(0)               = ?
[pid 20928] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20928, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20929 attached
, child_tidptr=0x555555af35d0) = 20929
[pid 20929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20929] setpgid(0, 0)               = 0
[pid 20929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20929] write(3, "1000", 4)         = 4
[pid 20929] close(3)                    = 0
[pid 20929] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20929] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20929] write(4, "78", 2)           = 2
[pid 20929] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20929] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20929] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20929] exit_group(0)               = ?
[pid 20929] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20929, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20930 attached
, child_tidptr=0x555555af35d0) = 20930
[pid 20930] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20930] setpgid(0, 0)               = 0
[pid 20930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20930] write(3, "1000", 4)         = 4
[pid 20930] close(3)                    = 0
[pid 20930] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20930] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20930] write(4, "78", 2)           = 2
[pid 20930] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20930] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20930] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20930] exit_group(0)               = ?
[pid 20930] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20930, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20931
./strace-static-x86_64: Process 20931 attached
[pid 20931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20931] setpgid(0, 0)               = 0
[pid 20931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20931] write(3, "1000", 4)         = 4
[pid 20931] close(3)                    = 0
[pid 20931] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20931] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20931] write(4, "78", 2)           = 2
[pid 20931] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20931] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20931] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20931] exit_group(0)               = ?
[pid 20931] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20931, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20932 attached
, child_tidptr=0x555555af35d0) = 20932
[pid 20932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20932] setpgid(0, 0)               = 0
[pid 20932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20932] write(3, "1000", 4)         = 4
[pid 20932] close(3)                    = 0
[pid 20932] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20932] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20932] write(4, "78", 2)           = 2
[pid 20932] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20932] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20932] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20932] exit_group(0)               = ?
[pid 20932] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20932, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20933 attached
, child_tidptr=0x555555af35d0) = 20933
[pid 20933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20933] setpgid(0, 0)               = 0
[pid 20933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20933] write(3, "1000", 4)         = 4
[pid 20933] close(3)                    = 0
[pid 20933] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20933] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20933] write(4, "78", 2)           = 2
[pid 20933] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20933] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20933] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20933] exit_group(0)               = ?
[pid 20933] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20933, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20934
./strace-static-x86_64: Process 20934 attached
[pid 20934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20934] setpgid(0, 0)               = 0
[pid 20934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20934] write(3, "1000", 4)         = 4
[pid 20934] close(3)                    = 0
[pid 20934] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20934] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20934] write(4, "78", 2)           = 2
[pid 20934] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20934] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20934] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20934] exit_group(0)               = ?
[pid 20934] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20934, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20935 attached
, child_tidptr=0x555555af35d0) = 20935
[pid 20935] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20935] setpgid(0, 0)               = 0
[pid 20935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20935] write(3, "1000", 4)         = 4
[pid 20935] close(3)                    = 0
[pid 20935] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20935] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20935] write(4, "78", 2)           = 2
[pid 20935] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20935] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20935] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20935] exit_group(0)               = ?
[pid 20935] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20935, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20936 attached
, child_tidptr=0x555555af35d0) = 20936
[pid 20936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20936] setpgid(0, 0)               = 0
[pid 20936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20936] write(3, "1000", 4)         = 4
[pid 20936] close(3)                    = 0
[pid 20936] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20936] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20936] write(4, "78", 2)           = 2
[pid 20936] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20936] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20936] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20936] exit_group(0)               = ?
[pid 20936] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20936, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20937 attached
, child_tidptr=0x555555af35d0) = 20937
[pid 20937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20937] setpgid(0, 0)               = 0
[pid 20937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20937] write(3, "1000", 4)         = 4
[pid 20937] close(3)                    = 0
[pid 20937] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20937] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20937] write(4, "78", 2)           = 2
[pid 20937] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20937] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20937] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20937] exit_group(0)               = ?
[pid 20937] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20937, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20938
./strace-static-x86_64: Process 20938 attached
[pid 20938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20938] setpgid(0, 0)               = 0
[pid 20938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20938] write(3, "1000", 4)         = 4
[pid 20938] close(3)                    = 0
[pid 20938] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20938] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20938] write(4, "78", 2)           = 2
[pid 20938] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20938] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20938] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20938] exit_group(0)               = ?
[pid 20938] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20938, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20939 attached
, child_tidptr=0x555555af35d0) = 20939
[pid 20939] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20939] setpgid(0, 0)               = 0
[pid 20939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20939] write(3, "1000", 4)         = 4
[pid 20939] close(3)                    = 0
[pid 20939] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20939] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20939] write(4, "78", 2)           = 2
[pid 20939] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20939] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20939] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20939] exit_group(0)               = ?
[pid 20939] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20939, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20940 attached
, child_tidptr=0x555555af35d0) = 20940
[pid 20940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20940] setpgid(0, 0)               = 0
[pid 20940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20940] write(3, "1000", 4)         = 4
[pid 20940] close(3)                    = 0
[pid 20940] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20940] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20940] write(4, "78", 2)           = 2
[pid 20940] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20940] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20940] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20940] exit_group(0)               = ?
[pid 20940] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20940, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20941
./strace-static-x86_64: Process 20941 attached
[pid 20941] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20941] setpgid(0, 0)               = 0
[pid 20941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20941] write(3, "1000", 4)         = 4
[pid 20941] close(3)                    = 0
[pid 20941] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20941] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20941] write(4, "78", 2)           = 2
[pid 20941] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20941] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20941] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20941] exit_group(0)               = ?
[pid 20941] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20941, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20942
./strace-static-x86_64: Process 20942 attached
[pid 20942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20942] setpgid(0, 0)               = 0
[pid 20942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20942] write(3, "1000", 4)         = 4
[pid 20942] close(3)                    = 0
[pid 20942] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20942] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20942] write(4, "78", 2)           = 2
[pid 20942] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20942] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20942] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20942] exit_group(0)               = ?
[pid 20942] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20942, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20943
./strace-static-x86_64: Process 20943 attached
[pid 20943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20943] setpgid(0, 0)               = 0
[pid 20943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20943] write(3, "1000", 4)         = 4
[pid 20943] close(3)                    = 0
[pid 20943] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20943] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20943] write(4, "78", 2)           = 2
[pid 20943] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20943] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20943] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20943] exit_group(0)               = ?
[pid 20943] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20943, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20944 attached
, child_tidptr=0x555555af35d0) = 20944
[pid 20944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20944] setpgid(0, 0)               = 0
[pid 20944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20944] write(3, "1000", 4)         = 4
[pid 20944] close(3)                    = 0
[pid 20944] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20944] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20944] write(4, "78", 2)           = 2
[pid 20944] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20944] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20944] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20944] exit_group(0)               = ?
[pid 20944] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20944, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20945 attached
, child_tidptr=0x555555af35d0) = 20945
[pid 20945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20945] setpgid(0, 0)               = 0
[pid 20945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20945] write(3, "1000", 4)         = 4
[pid 20945] close(3)                    = 0
[pid 20945] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20945] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20945] write(4, "78", 2)           = 2
[pid 20945] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20945] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20945] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20945] exit_group(0)               = ?
[pid 20945] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20945, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20946
./strace-static-x86_64: Process 20946 attached
[pid 20946] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20946] setpgid(0, 0)               = 0
[pid 20946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20946] write(3, "1000", 4)         = 4
[pid 20946] close(3)                    = 0
[pid 20946] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20946] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20946] write(4, "78", 2)           = 2
[pid 20946] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20946] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20946] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20946] exit_group(0)               = ?
[pid 20946] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20946, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20947 attached
, child_tidptr=0x555555af35d0) = 20947
[pid 20947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20947] setpgid(0, 0)               = 0
[pid 20947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20947] write(3, "1000", 4)         = 4
[pid 20947] close(3)                    = 0
[pid 20947] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20947] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20947] write(4, "78", 2)           = 2
[pid 20947] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20947] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20947] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20947] exit_group(0)               = ?
[pid 20947] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20947, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20948 attached
, child_tidptr=0x555555af35d0) = 20948
[pid 20948] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20948] setpgid(0, 0)               = 0
[pid 20948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20948] write(3, "1000", 4)         = 4
[pid 20948] close(3)                    = 0
[pid 20948] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20948] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20948] write(4, "78", 2)           = 2
[pid 20948] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20948] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20948] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20948] exit_group(0)               = ?
[pid 20948] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20948, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20949 attached
, child_tidptr=0x555555af35d0) = 20949
[pid 20949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20949] setpgid(0, 0)               = 0
[pid 20949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20949] write(3, "1000", 4)         = 4
[pid 20949] close(3)                    = 0
[pid 20949] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20949] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20949] write(4, "78", 2)           = 2
[pid 20949] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20949] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20949] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20949] exit_group(0)               = ?
[pid 20949] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20949, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20950 attached
, child_tidptr=0x555555af35d0) = 20950
[pid 20950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20950] setpgid(0, 0)               = 0
[pid 20950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20950] write(3, "1000", 4)         = 4
[pid 20950] close(3)                    = 0
[pid 20950] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20950] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20950] write(4, "78", 2)           = 2
[pid 20950] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20950] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20950] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20950] exit_group(0)               = ?
[pid 20950] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20950, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20951 attached
, child_tidptr=0x555555af35d0) = 20951
[pid 20951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20951] setpgid(0, 0)               = 0
[pid 20951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20951] write(3, "1000", 4)         = 4
[pid 20951] close(3)                    = 0
[pid 20951] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20951] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20951] write(4, "78", 2)           = 2
[pid 20951] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20951] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20951] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20951] exit_group(0)               = ?
[pid 20951] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20951, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20952 attached
, child_tidptr=0x555555af35d0) = 20952
[pid 20952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20952] setpgid(0, 0)               = 0
[pid 20952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20952] write(3, "1000", 4)         = 4
[pid 20952] close(3)                    = 0
[pid 20952] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20952] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20952] write(4, "78", 2)           = 2
[pid 20952] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20952] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20952] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20952] exit_group(0)               = ?
[pid 20952] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20952, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20953
./strace-static-x86_64: Process 20953 attached
[pid 20953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20953] setpgid(0, 0)               = 0
[pid 20953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20953] write(3, "1000", 4)         = 4
[pid 20953] close(3)                    = 0
[pid 20953] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20953] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20953] write(4, "78", 2)           = 2
[pid 20953] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20953] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20953] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20953] exit_group(0)               = ?
[pid 20953] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20953, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20954 attached
, child_tidptr=0x555555af35d0) = 20954
[pid 20954] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20954] setpgid(0, 0)               = 0
[pid 20954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20954] write(3, "1000", 4)         = 4
[pid 20954] close(3)                    = 0
[pid 20954] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20954] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20954] write(4, "78", 2)           = 2
[pid 20954] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20954] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20954] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20954] exit_group(0)               = ?
[pid 20954] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20954, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20955 attached
, child_tidptr=0x555555af35d0) = 20955
[pid 20955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20955] setpgid(0, 0)               = 0
[pid 20955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20955] write(3, "1000", 4)         = 4
[pid 20955] close(3)                    = 0
[pid 20955] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20955] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20955] write(4, "78", 2)           = 2
[pid 20955] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20955] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20955] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20955] exit_group(0)               = ?
[pid 20955] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20955, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20956
./strace-static-x86_64: Process 20956 attached
[pid 20956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20956] setpgid(0, 0)               = 0
[pid 20956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20956] write(3, "1000", 4)         = 4
[pid 20956] close(3)                    = 0
[pid 20956] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20956] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20956] write(4, "78", 2)           = 2
[pid 20956] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20956] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20956] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20956] exit_group(0)               = ?
[pid 20956] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20956, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20957 attached
, child_tidptr=0x555555af35d0) = 20957
[pid 20957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20957] setpgid(0, 0)               = 0
[pid 20957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20957] write(3, "1000", 4)         = 4
[pid 20957] close(3)                    = 0
[pid 20957] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20957] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20957] write(4, "78", 2)           = 2
[pid 20957] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20957] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20957] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20957] exit_group(0)               = ?
[pid 20957] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20957, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20958 attached
, child_tidptr=0x555555af35d0) = 20958
[pid 20958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20958] setpgid(0, 0)               = 0
[pid 20958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20958] write(3, "1000", 4)         = 4
[pid 20958] close(3)                    = 0
[pid 20958] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20958] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20958] write(4, "78", 2)           = 2
[pid 20958] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20958] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20958] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20958] exit_group(0)               = ?
[pid 20958] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20958, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20959 attached
, child_tidptr=0x555555af35d0) = 20959
[pid 20959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20959] setpgid(0, 0)               = 0
[pid 20959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20959] write(3, "1000", 4)         = 4
[pid 20959] close(3)                    = 0
[pid 20959] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20959] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20959] write(4, "78", 2)           = 2
[pid 20959] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20959] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20959] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20959] exit_group(0)               = ?
[pid 20959] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20959, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20960 attached
, child_tidptr=0x555555af35d0) = 20960
[pid 20960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20960] setpgid(0, 0)               = 0
[pid 20960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20960] write(3, "1000", 4)         = 4
[pid 20960] close(3)                    = 0
[pid 20960] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20960] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20960] write(4, "78", 2)           = 2
[pid 20960] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20960] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20960] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20960] exit_group(0)               = ?
[pid 20960] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20960, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20961 attached
, child_tidptr=0x555555af35d0) = 20961
[pid 20961] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20961] setpgid(0, 0)               = 0
[pid 20961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20961] write(3, "1000", 4)         = 4
[pid 20961] close(3)                    = 0
[pid 20961] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20961] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20961] write(4, "78", 2)           = 2
[pid 20961] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20961] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20961] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20961] exit_group(0)               = ?
[pid 20961] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20961, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20962
./strace-static-x86_64: Process 20962 attached
[pid 20962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20962] setpgid(0, 0)               = 0
[pid 20962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20962] write(3, "1000", 4)         = 4
[pid 20962] close(3)                    = 0
[pid 20962] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20962] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20962] write(4, "78", 2)           = 2
[pid 20962] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20962] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20962] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20962] exit_group(0)               = ?
[pid 20962] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20962, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20963 attached
, child_tidptr=0x555555af35d0) = 20963
[pid 20963] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20963] setpgid(0, 0)               = 0
[pid 20963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20963] write(3, "1000", 4)         = 4
[pid 20963] close(3)                    = 0
[pid 20963] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20963] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20963] write(4, "78", 2)           = 2
[pid 20963] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20963] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20963] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20963] exit_group(0)               = ?
[pid 20963] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20963, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20964 attached
, child_tidptr=0x555555af35d0) = 20964
[pid 20964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20964] setpgid(0, 0)               = 0
[pid 20964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20964] write(3, "1000", 4)         = 4
[pid 20964] close(3)                    = 0
[pid 20964] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20964] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20964] write(4, "78", 2)           = 2
[pid 20964] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20964] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20964] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20964] exit_group(0)               = ?
[pid 20964] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20964, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20965 attached
, child_tidptr=0x555555af35d0) = 20965
[pid 20965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20965] setpgid(0, 0)               = 0
[pid 20965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20965] write(3, "1000", 4)         = 4
[pid 20965] close(3)                    = 0
[pid 20965] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20965] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20965] write(4, "78", 2)           = 2
[pid 20965] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20965] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20965] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20965] exit_group(0)               = ?
[pid 20965] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20965, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20966 attached
, child_tidptr=0x555555af35d0) = 20966
[pid 20966] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20966] setpgid(0, 0)               = 0
[pid 20966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20966] write(3, "1000", 4)         = 4
[pid 20966] close(3)                    = 0
[pid 20966] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20966] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20966] write(4, "78", 2)           = 2
[pid 20966] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20966] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20966] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20966] exit_group(0)               = ?
[pid 20966] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20966, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20967 attached
, child_tidptr=0x555555af35d0) = 20967
[pid 20967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20967] setpgid(0, 0)               = 0
[pid 20967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20967] write(3, "1000", 4)         = 4
[pid 20967] close(3)                    = 0
[pid 20967] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20967] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20967] write(4, "78", 2)           = 2
[pid 20967] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20967] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20967] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20967] exit_group(0)               = ?
[pid 20967] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20967, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20968 attached
, child_tidptr=0x555555af35d0) = 20968
[pid 20968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20968] setpgid(0, 0)               = 0
[pid 20968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20968] write(3, "1000", 4)         = 4
[pid 20968] close(3)                    = 0
[pid 20968] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20968] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20968] write(4, "78", 2)           = 2
[pid 20968] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20968] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20968] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20968] exit_group(0)               = ?
[pid 20968] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20968, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20969
./strace-static-x86_64: Process 20969 attached
[pid 20969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20969] setpgid(0, 0)               = 0
[pid 20969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20969] write(3, "1000", 4)         = 4
[pid 20969] close(3)                    = 0
[pid 20969] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20969] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20969] write(4, "78", 2)           = 2
[pid 20969] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20969] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20969] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20969] exit_group(0)               = ?
[pid 20969] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20969, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20970 attached
, child_tidptr=0x555555af35d0) = 20970
[pid 20970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20970] setpgid(0, 0)               = 0
[pid 20970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20970] write(3, "1000", 4)         = 4
[pid 20970] close(3)                    = 0
[pid 20970] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20970] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20970] write(4, "78", 2)           = 2
[pid 20970] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20970] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20970] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20970] exit_group(0)               = ?
[pid 20970] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20970, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20971 attached
, child_tidptr=0x555555af35d0) = 20971
[pid 20971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20971] setpgid(0, 0)               = 0
[pid 20971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20971] write(3, "1000", 4)         = 4
[pid 20971] close(3)                    = 0
[pid 20971] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20971] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20971] write(4, "78", 2)           = 2
[pid 20971] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20971] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20971] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20971] exit_group(0)               = ?
[pid 20971] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20971, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20972 attached
, child_tidptr=0x555555af35d0) = 20972
[pid 20972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20972] setpgid(0, 0)               = 0
[pid 20972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20972] write(3, "1000", 4)         = 4
[pid 20972] close(3)                    = 0
[pid 20972] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20972] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20972] write(4, "78", 2)           = 2
[pid 20972] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20972] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20972] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20972] exit_group(0)               = ?
[pid 20972] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20972, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20973 attached
, child_tidptr=0x555555af35d0) = 20973
[pid 20973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20973] setpgid(0, 0)               = 0
[pid 20973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20973] write(3, "1000", 4)         = 4
[pid 20973] close(3)                    = 0
[pid 20973] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20973] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20973] write(4, "78", 2)           = 2
[pid 20973] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20973] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20973] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20973] exit_group(0)               = ?
[pid 20973] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20973, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20974 attached
, child_tidptr=0x555555af35d0) = 20974
[pid 20974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20974] setpgid(0, 0)               = 0
[pid 20974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20974] write(3, "1000", 4)         = 4
[pid 20974] close(3)                    = 0
[pid 20974] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20974] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20974] write(4, "78", 2)           = 2
[pid 20974] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20974] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20974] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20974] exit_group(0)               = ?
[pid 20974] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20974, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20975 attached
, child_tidptr=0x555555af35d0) = 20975
[pid 20975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20975] setpgid(0, 0)               = 0
[pid 20975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20975] write(3, "1000", 4)         = 4
[pid 20975] close(3)                    = 0
[pid 20975] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20975] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20975] write(4, "78", 2)           = 2
[pid 20975] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20975] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20975] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20975] exit_group(0)               = ?
[pid 20975] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20975, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20976 attached
, child_tidptr=0x555555af35d0) = 20976
[pid 20976] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20976] setpgid(0, 0)               = 0
[pid 20976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20976] write(3, "1000", 4)         = 4
[pid 20976] close(3)                    = 0
[pid 20976] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20976] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20976] write(4, "78", 2)           = 2
[pid 20976] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20976] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20976] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20976] exit_group(0)               = ?
[pid 20976] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20976, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20977 attached
, child_tidptr=0x555555af35d0) = 20977
[pid 20977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20977] setpgid(0, 0)               = 0
[pid 20977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20977] write(3, "1000", 4)         = 4
[pid 20977] close(3)                    = 0
[pid 20977] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20977] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20977] write(4, "78", 2)           = 2
[pid 20977] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20977] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20977] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20977] exit_group(0)               = ?
[pid 20977] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20977, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20978
./strace-static-x86_64: Process 20978 attached
[pid 20978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20978] setpgid(0, 0)               = 0
[pid 20978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20978] write(3, "1000", 4)         = 4
[pid 20978] close(3)                    = 0
[pid 20978] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20978] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20978] write(4, "78", 2)           = 2
[pid 20978] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20978] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20978] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20978] exit_group(0)               = ?
[pid 20978] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20978, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20979 attached
, child_tidptr=0x555555af35d0) = 20979
[pid 20979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20979] setpgid(0, 0)               = 0
[pid 20979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20979] write(3, "1000", 4)         = 4
[pid 20979] close(3)                    = 0
[pid 20979] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20979] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20979] write(4, "78", 2)           = 2
[pid 20979] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20979] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20979] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20979] exit_group(0)               = ?
[pid 20979] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20979, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20980
./strace-static-x86_64: Process 20980 attached
[pid 20980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20980] setpgid(0, 0)               = 0
[pid 20980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20980] write(3, "1000", 4)         = 4
[pid 20980] close(3)                    = 0
[pid 20980] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20980] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20980] write(4, "78", 2)           = 2
[pid 20980] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20980] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20980] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20980] exit_group(0)               = ?
[pid 20980] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20980, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20981 attached
, child_tidptr=0x555555af35d0) = 20981
[pid 20981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20981] setpgid(0, 0)               = 0
[pid 20981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20981] write(3, "1000", 4)         = 4
[pid 20981] close(3)                    = 0
[pid 20981] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20981] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20981] write(4, "78", 2)           = 2
[pid 20981] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20981] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20981] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20981] exit_group(0)               = ?
[pid 20981] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20981, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20982
./strace-static-x86_64: Process 20982 attached
[pid 20982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20982] setpgid(0, 0)               = 0
[pid 20982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20982] write(3, "1000", 4)         = 4
[pid 20982] close(3)                    = 0
[pid 20982] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20982] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20982] write(4, "78", 2)           = 2
[pid 20982] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20982] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20982] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20982] exit_group(0)               = ?
[pid 20982] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20982, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20983
./strace-static-x86_64: Process 20983 attached
[pid 20983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20983] setpgid(0, 0)               = 0
[pid 20983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20983] write(3, "1000", 4)         = 4
[pid 20983] close(3)                    = 0
[pid 20983] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20983] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20983] write(4, "78", 2)           = 2
[pid 20983] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20983] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20983] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20983] exit_group(0)               = ?
[pid 20983] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20983, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20984 attached
, child_tidptr=0x555555af35d0) = 20984
[pid 20984] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20984] setpgid(0, 0)               = 0
[pid 20984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20984] write(3, "1000", 4)         = 4
[pid 20984] close(3)                    = 0
[pid 20984] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20984] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20984] write(4, "78", 2)           = 2
[pid 20984] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20984] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20984] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20984] exit_group(0)               = ?
[pid 20984] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20984, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20985 attached
, child_tidptr=0x555555af35d0) = 20985
[pid 20985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20985] setpgid(0, 0)               = 0
[pid 20985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20985] write(3, "1000", 4)         = 4
[pid 20985] close(3)                    = 0
[pid 20985] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20985] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20985] write(4, "78", 2)           = 2
[pid 20985] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20985] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20985] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20985] exit_group(0)               = ?
[pid 20985] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20985, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20986 attached
, child_tidptr=0x555555af35d0) = 20986
[pid 20986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20986] setpgid(0, 0)               = 0
[pid 20986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20986] write(3, "1000", 4)         = 4
[pid 20986] close(3)                    = 0
[pid 20986] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20986] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20986] write(4, "78", 2)           = 2
[pid 20986] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20986] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20986] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20986] exit_group(0)               = ?
[pid 20986] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20986, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20987 attached
, child_tidptr=0x555555af35d0) = 20987
[pid 20987] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20987] setpgid(0, 0)               = 0
[pid 20987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20987] write(3, "1000", 4)         = 4
[pid 20987] close(3)                    = 0
[pid 20987] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20987] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20987] write(4, "78", 2)           = 2
[pid 20987] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20987] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20987] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20987] exit_group(0)               = ?
[pid 20987] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20987, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20988 attached
, child_tidptr=0x555555af35d0) = 20988
[pid 20988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20988] setpgid(0, 0)               = 0
[pid 20988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20988] write(3, "1000", 4)         = 4
[pid 20988] close(3)                    = 0
[pid 20988] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20988] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20988] write(4, "78", 2)           = 2
[pid 20988] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20988] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20988] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20988] exit_group(0)               = ?
[pid 20988] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20988, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20989 attached
, child_tidptr=0x555555af35d0) = 20989
[pid 20989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20989] setpgid(0, 0)               = 0
[pid 20989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20989] write(3, "1000", 4)         = 4
[pid 20989] close(3)                    = 0
[pid 20989] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20989] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20989] write(4, "78", 2)           = 2
[pid 20989] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20989] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20989] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20989] exit_group(0)               = ?
[pid 20989] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20989, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20990 attached
, child_tidptr=0x555555af35d0) = 20990
[pid 20990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20990] setpgid(0, 0)               = 0
[pid 20990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20990] write(3, "1000", 4)         = 4
[pid 20990] close(3)                    = 0
[pid 20990] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20990] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20990] write(4, "78", 2)           = 2
[pid 20990] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20990] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20990] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20990] exit_group(0)               = ?
[pid 20990] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20990, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20991
./strace-static-x86_64: Process 20991 attached
[pid 20991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20991] setpgid(0, 0)               = 0
[pid 20991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20991] write(3, "1000", 4)         = 4
[pid 20991] close(3)                    = 0
[pid 20991] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20991] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20991] write(4, "78", 2)           = 2
[pid 20991] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20991] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20991] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20991] exit_group(0)               = ?
[pid 20991] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20991, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20992
./strace-static-x86_64: Process 20992 attached
[pid 20992] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20992] setpgid(0, 0)               = 0
[pid 20992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20992] write(3, "1000", 4)         = 4
[pid 20992] close(3)                    = 0
[pid 20992] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20992] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20992] write(4, "78", 2)           = 2
[pid 20992] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20992] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20992] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20992] exit_group(0)               = ?
[pid 20992] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20992, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20993
./strace-static-x86_64: Process 20993 attached
[pid 20993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20993] setpgid(0, 0)               = 0
[pid 20993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20993] write(3, "1000", 4)         = 4
[pid 20993] close(3)                    = 0
[pid 20993] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20993] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20993] write(4, "78", 2)           = 2
[pid 20993] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 20993] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20993] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 20993] exit_group(0)               = ?
[pid 20993] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20993, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20994
./strace-static-x86_64: Process 20994 attached
[pid 20994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20994] setpgid(0, 0)               = 0
[pid 20994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20994] write(3, "1000", 4)         = 4
[pid 20994] close(3)                    = 0
[pid 20994] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20994] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20994] write(4, "78", 2)           = 2
[pid 20994] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 20994] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20994] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 20994] exit_group(0)               = ?
[pid 20994] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20994, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20995 attached
, child_tidptr=0x555555af35d0) = 20995
[pid 20995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20995] setpgid(0, 0)               = 0
[pid 20995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20995] write(3, "1000", 4)         = 4
[pid 20995] close(3)                    = 0
[pid 20995] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20995] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20995] write(4, "78", 2)           = 2
[pid 20995] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20995] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20995] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20995] exit_group(0)               = ?
[pid 20995] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20995, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20996 attached
, child_tidptr=0x555555af35d0) = 20996
[pid 20996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20996] setpgid(0, 0)               = 0
[pid 20996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20996] write(3, "1000", 4)         = 4
[pid 20996] close(3)                    = 0
[pid 20996] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20996] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20996] write(4, "78", 2)           = 2
[pid 20996] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20996] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20996] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20996] exit_group(0)               = ?
[pid 20996] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20996, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20997 attached
, child_tidptr=0x555555af35d0) = 20997
[pid 20997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20997] setpgid(0, 0)               = 0
[pid 20997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20997] write(3, "1000", 4)         = 4
[pid 20997] close(3)                    = 0
[pid 20997] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20997] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20997] write(4, "78", 2)           = 2
[pid 20997] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20997] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20997] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20997] exit_group(0)               = ?
[pid 20997] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20997, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20998 attached
, child_tidptr=0x555555af35d0) = 20998
[pid 20998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20998] setpgid(0, 0)               = 0
[pid 20998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20998] write(3, "1000", 4)         = 4
[pid 20998] close(3)                    = 0
[pid 20998] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20998] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20998] write(4, "78", 2)           = 2
[pid 20998] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20998] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20998] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20998] exit_group(0)               = ?
[pid 20998] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20998, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 20999
./strace-static-x86_64: Process 20999 attached
[pid 20999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 20999] setpgid(0, 0)               = 0
[pid 20999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 20999] write(3, "1000", 4)         = 4
[pid 20999] close(3)                    = 0
[pid 20999] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 20999] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 20999] write(4, "78", 2)           = 2
[pid 20999] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 20999] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 20999] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 20999] exit_group(0)               = ?
[pid 20999] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20999, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21000
./strace-static-x86_64: Process 21000 attached
[pid 21000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21000] setpgid(0, 0)               = 0
[pid 21000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21000] write(3, "1000", 4)         = 4
[pid 21000] close(3)                    = 0
[pid 21000] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21000] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21000] write(4, "78", 2)           = 2
[pid 21000] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21000] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21000] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21000] exit_group(0)               = ?
[pid 21000] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21000, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21001
./strace-static-x86_64: Process 21001 attached
[pid 21001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21001] setpgid(0, 0)               = 0
[pid 21001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21001] write(3, "1000", 4)         = 4
[pid 21001] close(3)                    = 0
[pid 21001] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21001] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21001] write(4, "78", 2)           = 2
[pid 21001] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21001] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21001] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21001] exit_group(0)               = ?
[pid 21001] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21001, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21002
./strace-static-x86_64: Process 21002 attached
[pid 21002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21002] setpgid(0, 0)               = 0
[pid 21002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21002] write(3, "1000", 4)         = 4
[pid 21002] close(3)                    = 0
[pid 21002] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21002] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21002] write(4, "78", 2)           = 2
[pid 21002] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21002] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21002] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21002] exit_group(0)               = ?
[pid 21002] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21002, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21003
./strace-static-x86_64: Process 21003 attached
[pid 21003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21003] setpgid(0, 0)               = 0
[pid 21003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21003] write(3, "1000", 4)         = 4
[pid 21003] close(3)                    = 0
[pid 21003] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21003] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21003] write(4, "78", 2)           = 2
[pid 21003] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21003] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21003] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21003] exit_group(0)               = ?
[pid 21003] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21003, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21004
./strace-static-x86_64: Process 21004 attached
[pid 21004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21004] setpgid(0, 0)               = 0
[pid 21004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21004] write(3, "1000", 4)         = 4
[pid 21004] close(3)                    = 0
[pid 21004] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21004] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21004] write(4, "78", 2)           = 2
[pid 21004] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21004] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21004] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21004] exit_group(0)               = ?
[pid 21004] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21004, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21005 attached
, child_tidptr=0x555555af35d0) = 21005
[pid 21005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21005] setpgid(0, 0)               = 0
[pid 21005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21005] write(3, "1000", 4)         = 4
[pid 21005] close(3)                    = 0
[pid 21005] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21005] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21005] write(4, "78", 2)           = 2
[pid 21005] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21005] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21005] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21005] exit_group(0)               = ?
[pid 21005] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21005, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21006 attached
, child_tidptr=0x555555af35d0) = 21006
[pid 21006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21006] setpgid(0, 0)               = 0
[pid 21006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21006] write(3, "1000", 4)         = 4
[pid 21006] close(3)                    = 0
[pid 21006] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21006] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21006] write(4, "78", 2)           = 2
[pid 21006] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21006] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21006] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21006] exit_group(0)               = ?
[pid 21006] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21006, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21007 attached
, child_tidptr=0x555555af35d0) = 21007
[pid 21007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21007] setpgid(0, 0)               = 0
[pid 21007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21007] write(3, "1000", 4)         = 4
[pid 21007] close(3)                    = 0
[pid 21007] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21007] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21007] write(4, "78", 2)           = 2
[pid 21007] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21007] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21007] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21007] exit_group(0)               = ?
[pid 21007] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21007, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21008
./strace-static-x86_64: Process 21008 attached
[pid 21008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21008] setpgid(0, 0)               = 0
[pid 21008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21008] write(3, "1000", 4)         = 4
[pid 21008] close(3)                    = 0
[pid 21008] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21008] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21008] write(4, "78", 2)           = 2
[pid 21008] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21008] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21008] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21008] exit_group(0)               = ?
[pid 21008] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21008, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21009
./strace-static-x86_64: Process 21009 attached
[pid 21009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21009] setpgid(0, 0)               = 0
[pid 21009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21009] write(3, "1000", 4)         = 4
[pid 21009] close(3)                    = 0
[pid 21009] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21009] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21009] write(4, "78", 2)           = 2
[pid 21009] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21009] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21009] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21009] exit_group(0)               = ?
[pid 21009] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21009, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21010
./strace-static-x86_64: Process 21010 attached
[pid 21010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21010] setpgid(0, 0)               = 0
[pid 21010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21010] write(3, "1000", 4)         = 4
[pid 21010] close(3)                    = 0
[pid 21010] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21010] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21010] write(4, "78", 2)           = 2
[pid 21010] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21010] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21010] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 21010] exit_group(0)               = ?
[pid 21010] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21010, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21011 attached
, child_tidptr=0x555555af35d0) = 21011
[pid 21011] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21011] setpgid(0, 0)               = 0
[pid 21011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21011] write(3, "1000", 4)         = 4
[pid 21011] close(3)                    = 0
[pid 21011] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21011] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21011] write(4, "78", 2)           = 2
[pid 21011] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 21011] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21011] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21011] exit_group(0)               = ?
[pid 21011] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21011, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21012
./strace-static-x86_64: Process 21012 attached
[pid 21012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21012] setpgid(0, 0)               = 0
[pid 21012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21012] write(3, "1000", 4)         = 4
[pid 21012] close(3)                    = 0
[pid 21012] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21012] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21012] write(4, "78", 2)           = 2
[pid 21012] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21012] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21012] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21012] exit_group(0)               = ?
[pid 21012] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21012, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21013
./strace-static-x86_64: Process 21013 attached
[pid 21013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21013] setpgid(0, 0)               = 0
[pid 21013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21013] write(3, "1000", 4)         = 4
[pid 21013] close(3)                    = 0
[pid 21013] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21013] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21013] write(4, "78", 2)           = 2
[pid 21013] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21013] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21013] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21013] exit_group(0)               = ?
[pid 21013] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21013, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21014 attached
, child_tidptr=0x555555af35d0) = 21014
[pid 21014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21014] setpgid(0, 0)               = 0
[pid 21014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21014] write(3, "1000", 4)         = 4
[pid 21014] close(3)                    = 0
[pid 21014] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21014] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21014] write(4, "78", 2)           = 2
[pid 21014] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21014] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21014] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21014] exit_group(0)               = ?
[pid 21014] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21014, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21015
./strace-static-x86_64: Process 21015 attached
[pid 21015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21015] setpgid(0, 0)               = 0
[pid 21015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21015] write(3, "1000", 4)         = 4
[pid 21015] close(3)                    = 0
[pid 21015] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21015] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21015] write(4, "78", 2)           = 2
[pid 21015] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21015] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21015] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21015] exit_group(0)               = ?
[pid 21015] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21015, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21016
./strace-static-x86_64: Process 21016 attached
[pid 21016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21016] setpgid(0, 0)               = 0
[pid 21016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21016] write(3, "1000", 4)         = 4
[pid 21016] close(3)                    = 0
[pid 21016] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21016] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21016] write(4, "78", 2)           = 2
[pid 21016] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21016] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21016] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21016] exit_group(0)               = ?
[pid 21016] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21016, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21017 attached
, child_tidptr=0x555555af35d0) = 21017
[pid 21017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21017] setpgid(0, 0)               = 0
[pid 21017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21017] write(3, "1000", 4)         = 4
[pid 21017] close(3)                    = 0
[pid 21017] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21017] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21017] write(4, "78", 2)           = 2
[pid 21017] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21017] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21017] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21017] exit_group(0)               = ?
[pid 21017] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21017, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21018
./strace-static-x86_64: Process 21018 attached
[pid 21018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21018] setpgid(0, 0)               = 0
[pid 21018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21018] write(3, "1000", 4)         = 4
[pid 21018] close(3)                    = 0
[pid 21018] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21018] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21018] write(4, "78", 2)           = 2
[pid 21018] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21018] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21018] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21018] exit_group(0)               = ?
[pid 21018] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21018, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21019 attached
, child_tidptr=0x555555af35d0) = 21019
[pid 21019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21019] setpgid(0, 0)               = 0
[pid 21019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21019] write(3, "1000", 4)         = 4
[pid 21019] close(3)                    = 0
[pid 21019] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21019] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21019] write(4, "78", 2)           = 2
[pid 21019] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21019] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21019] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21019] exit_group(0)               = ?
[pid 21019] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21019, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21020 attached
, child_tidptr=0x555555af35d0) = 21020
[pid 21020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21020] setpgid(0, 0)               = 0
[pid 21020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21020] write(3, "1000", 4)         = 4
[pid 21020] close(3)                    = 0
[pid 21020] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21020] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21020] write(4, "78", 2)           = 2
[pid 21020] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21020] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21020] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21020] exit_group(0)               = ?
[pid 21020] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21020, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21021 attached
, child_tidptr=0x555555af35d0) = 21021
[pid 21021] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21021] setpgid(0, 0)               = 0
[pid 21021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21021] write(3, "1000", 4)         = 4
[pid 21021] close(3)                    = 0
[pid 21021] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21021] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21021] write(4, "78", 2)           = 2
[pid 21021] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21021] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21021] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21021] exit_group(0)               = ?
[pid 21021] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21021, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21022
./strace-static-x86_64: Process 21022 attached
[pid 21022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21022] setpgid(0, 0)               = 0
[pid 21022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21022] write(3, "1000", 4)         = 4
[pid 21022] close(3)                    = 0
[pid 21022] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21022] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21022] write(4, "78", 2)           = 2
[pid 21022] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21022] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21022] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21022] exit_group(0)               = ?
[pid 21022] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21022, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21023 attached
, child_tidptr=0x555555af35d0) = 21023
[pid 21023] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21023] setpgid(0, 0)               = 0
[pid 21023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21023] write(3, "1000", 4)         = 4
[pid 21023] close(3)                    = 0
[pid 21023] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21023] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21023] write(4, "78", 2)           = 2
[pid 21023] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21023] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21023] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21023] exit_group(0)               = ?
[pid 21023] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21023, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21024 attached
, child_tidptr=0x555555af35d0) = 21024
[pid 21024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21024] setpgid(0, 0)               = 0
[pid 21024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21024] write(3, "1000", 4)         = 4
[pid 21024] close(3)                    = 0
[pid 21024] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21024] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21024] write(4, "78", 2)           = 2
[pid 21024] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21024] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21024] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21024] exit_group(0)               = ?
[pid 21024] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21024, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21025 attached
, child_tidptr=0x555555af35d0) = 21025
[pid 21025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21025] setpgid(0, 0)               = 0
[pid 21025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21025] write(3, "1000", 4)         = 4
[pid 21025] close(3)                    = 0
[pid 21025] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21025] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21025] write(4, "78", 2)           = 2
[pid 21025] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21025] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21025] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21025] exit_group(0)               = ?
[pid 21025] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21025, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21026 attached
, child_tidptr=0x555555af35d0) = 21026
[pid 21026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21026] setpgid(0, 0)               = 0
[pid 21026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21026] write(3, "1000", 4)         = 4
[pid 21026] close(3)                    = 0
[pid 21026] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21026] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21026] write(4, "78", 2)           = 2
[pid 21026] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21026] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21026] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21026] exit_group(0)               = ?
[pid 21026] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21026, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21027
./strace-static-x86_64: Process 21027 attached
[pid 21027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21027] setpgid(0, 0)               = 0
[pid 21027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21027] write(3, "1000", 4)         = 4
[pid 21027] close(3)                    = 0
[pid 21027] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21027] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21027] write(4, "78", 2)           = 2
[pid 21027] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21027] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21027] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21027] exit_group(0)               = ?
[pid 21027] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21027, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21028 attached
, child_tidptr=0x555555af35d0) = 21028
[pid 21028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21028] setpgid(0, 0)               = 0
[pid 21028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21028] write(3, "1000", 4)         = 4
[pid 21028] close(3)                    = 0
[pid 21028] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21028] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21028] write(4, "78", 2)           = 2
[pid 21028] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21028] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21028] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21028] exit_group(0)               = ?
[pid 21028] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21028, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21029
./strace-static-x86_64: Process 21029 attached
[pid 21029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21029] setpgid(0, 0)               = 0
[pid 21029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21029] write(3, "1000", 4)         = 4
[pid 21029] close(3)                    = 0
[pid 21029] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21029] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21029] write(4, "78", 2)           = 2
[pid 21029] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21029] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21029] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21029] exit_group(0)               = ?
[pid 21029] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21029, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21030
./strace-static-x86_64: Process 21030 attached
[pid 21030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21030] setpgid(0, 0)               = 0
[pid 21030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21030] write(3, "1000", 4)         = 4
[pid 21030] close(3)                    = 0
[pid 21030] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21030] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21030] write(4, "78", 2)           = 2
[pid 21030] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21030] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21030] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21030] exit_group(0)               = ?
[pid 21030] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21030, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21031 attached
, child_tidptr=0x555555af35d0) = 21031
[pid 21031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21031] setpgid(0, 0)               = 0
[pid 21031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21031] write(3, "1000", 4)         = 4
[pid 21031] close(3)                    = 0
[pid 21031] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21031] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21031] write(4, "78", 2)           = 2
[pid 21031] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21031] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21031] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21031] exit_group(0)               = ?
[pid 21031] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21031, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21032 attached
, child_tidptr=0x555555af35d0) = 21032
[pid 21032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21032] setpgid(0, 0)               = 0
[pid 21032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21032] write(3, "1000", 4)         = 4
[pid 21032] close(3)                    = 0
[pid 21032] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21032] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21032] write(4, "78", 2)           = 2
[pid 21032] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21032] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21032] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21032] exit_group(0)               = ?
[pid 21032] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21032, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21033 attached
, child_tidptr=0x555555af35d0) = 21033
[pid 21033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21033] setpgid(0, 0)               = 0
[pid 21033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21033] write(3, "1000", 4)         = 4
[pid 21033] close(3)                    = 0
[pid 21033] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21033] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21033] write(4, "78", 2)           = 2
[pid 21033] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21033] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21033] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 21033] exit_group(0)               = ?
[pid 21033] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21033, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21034 attached
, child_tidptr=0x555555af35d0) = 21034
[pid 21034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21034] setpgid(0, 0)               = 0
[pid 21034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21034] write(3, "1000", 4)         = 4
[pid 21034] close(3)                    = 0
[pid 21034] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21034] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21034] write(4, "78", 2)           = 2
[pid 21034] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 21034] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21034] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21034] exit_group(0)               = ?
[pid 21034] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21034, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21035 attached
, child_tidptr=0x555555af35d0) = 21035
[pid 21035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21035] setpgid(0, 0)               = 0
[pid 21035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21035] write(3, "1000", 4)         = 4
[pid 21035] close(3)                    = 0
[pid 21035] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21035] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21035] write(4, "78", 2)           = 2
[pid 21035] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21035] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21035] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21035] exit_group(0)               = ?
[pid 21035] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21035, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21036 attached
, child_tidptr=0x555555af35d0) = 21036
[pid 21036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21036] setpgid(0, 0)               = 0
[pid 21036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21036] write(3, "1000", 4)         = 4
[pid 21036] close(3)                    = 0
[pid 21036] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21036] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21036] write(4, "78", 2)           = 2
[pid 21036] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21036] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21036] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21036] exit_group(0)               = ?
[pid 21036] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21036, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21037
./strace-static-x86_64: Process 21037 attached
[pid 21037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21037] setpgid(0, 0)               = 0
[pid 21037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21037] write(3, "1000", 4)         = 4
[pid 21037] close(3)                    = 0
[pid 21037] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21037] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21037] write(4, "78", 2)           = 2
[pid 21037] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21037] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21037] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21037] exit_group(0)               = ?
[pid 21037] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21037, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21038 attached
, child_tidptr=0x555555af35d0) = 21038
[pid 21038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21038] setpgid(0, 0)               = 0
[pid 21038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21038] write(3, "1000", 4)         = 4
[pid 21038] close(3)                    = 0
[pid 21038] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21038] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21038] write(4, "78", 2)           = 2
[pid 21038] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21038] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21038] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21038] exit_group(0)               = ?
[pid 21038] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21038, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21039 attached
, child_tidptr=0x555555af35d0) = 21039
[pid 21039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21039] setpgid(0, 0)               = 0
[pid 21039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21039] write(3, "1000", 4)         = 4
[pid 21039] close(3)                    = 0
[pid 21039] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21039] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21039] write(4, "78", 2)           = 2
[pid 21039] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21039] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21039] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21039] exit_group(0)               = ?
[pid 21039] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21039, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21040 attached
, child_tidptr=0x555555af35d0) = 21040
[pid 21040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21040] setpgid(0, 0)               = 0
[pid 21040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21040] write(3, "1000", 4)         = 4
[pid 21040] close(3)                    = 0
[pid 21040] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21040] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21040] write(4, "78", 2)           = 2
[pid 21040] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21040] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21040] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21040] exit_group(0)               = ?
[pid 21040] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21040, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21041 attached
, child_tidptr=0x555555af35d0) = 21041
[pid 21041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21041] setpgid(0, 0)               = 0
[pid 21041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21041] write(3, "1000", 4)         = 4
[pid 21041] close(3)                    = 0
[pid 21041] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21041] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21041] write(4, "78", 2)           = 2
[pid 21041] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21041] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21041] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21041] exit_group(0)               = ?
[pid 21041] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21041, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21042 attached
, child_tidptr=0x555555af35d0) = 21042
[pid 21042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21042] setpgid(0, 0)               = 0
[pid 21042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21042] write(3, "1000", 4)         = 4
[pid 21042] close(3)                    = 0
[pid 21042] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21042] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21042] write(4, "78", 2)           = 2
[pid 21042] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21042] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21042] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21042] exit_group(0)               = ?
[pid 21042] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21042, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21043 attached
, child_tidptr=0x555555af35d0) = 21043
[pid 21043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21043] setpgid(0, 0)               = 0
[pid 21043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21043] write(3, "1000", 4)         = 4
[pid 21043] close(3)                    = 0
[pid 21043] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21043] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21043] write(4, "78", 2)           = 2
[pid 21043] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21043] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21043] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21043] exit_group(0)               = ?
[pid 21043] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21043, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21044
./strace-static-x86_64: Process 21044 attached
[pid 21044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21044] setpgid(0, 0)               = 0
[pid 21044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21044] write(3, "1000", 4)         = 4
[pid 21044] close(3)                    = 0
[pid 21044] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21044] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21044] write(4, "78", 2)           = 2
[pid 21044] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21044] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21044] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21044] exit_group(0)               = ?
[pid 21044] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21044, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21045
./strace-static-x86_64: Process 21045 attached
[pid 21045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21045] setpgid(0, 0)               = 0
[pid 21045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21045] write(3, "1000", 4)         = 4
[pid 21045] close(3)                    = 0
[pid 21045] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21045] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21045] write(4, "78", 2)           = 2
[pid 21045] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21045] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21045] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21045] exit_group(0)               = ?
[pid 21045] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21045, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21046 attached
, child_tidptr=0x555555af35d0) = 21046
[pid 21046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21046] setpgid(0, 0)               = 0
[pid 21046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21046] write(3, "1000", 4)         = 4
[pid 21046] close(3)                    = 0
[pid 21046] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21046] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21046] write(4, "78", 2)           = 2
[pid 21046] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21046] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21046] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21046] exit_group(0)               = ?
[pid 21046] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21046, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21047 attached
, child_tidptr=0x555555af35d0) = 21047
[pid 21047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21047] setpgid(0, 0)               = 0
[pid 21047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21047] write(3, "1000", 4)         = 4
[pid 21047] close(3)                    = 0
[pid 21047] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21047] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21047] write(4, "78", 2)           = 2
[pid 21047] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21047] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21047] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21047] exit_group(0)               = ?
[pid 21047] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21047, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21048 attached
, child_tidptr=0x555555af35d0) = 21048
[pid 21048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21048] setpgid(0, 0)               = 0
[pid 21048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21048] write(3, "1000", 4)         = 4
[pid 21048] close(3)                    = 0
[pid 21048] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21048] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21048] write(4, "78", 2)           = 2
[pid 21048] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21048] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21048] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21048] exit_group(0)               = ?
[pid 21048] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21048, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21049 attached
, child_tidptr=0x555555af35d0) = 21049
[pid 21049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21049] setpgid(0, 0)               = 0
[pid 21049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21049] write(3, "1000", 4)         = 4
[pid 21049] close(3)                    = 0
[pid 21049] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21049] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21049] write(4, "78", 2)           = 2
[pid 21049] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21049] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21049] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21049] exit_group(0)               = ?
[pid 21049] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21049, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21050
./strace-static-x86_64: Process 21050 attached
[pid 21050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21050] setpgid(0, 0)               = 0
[pid 21050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21050] write(3, "1000", 4)         = 4
[pid 21050] close(3)                    = 0
[pid 21050] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21050] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21050] write(4, "78", 2)           = 2
[pid 21050] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21050] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21050] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21050] exit_group(0)               = ?
[pid 21050] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21050, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21051 attached
, child_tidptr=0x555555af35d0) = 21051
[pid 21051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21051] setpgid(0, 0)               = 0
[pid 21051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21051] write(3, "1000", 4)         = 4
[pid 21051] close(3)                    = 0
[pid 21051] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21051] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21051] write(4, "78", 2)           = 2
[pid 21051] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21051] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21051] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21051] exit_group(0)               = ?
[pid 21051] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21051, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21052 attached
, child_tidptr=0x555555af35d0) = 21052
[pid 21052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21052] setpgid(0, 0)               = 0
[pid 21052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21052] write(3, "1000", 4)         = 4
[pid 21052] close(3)                    = 0
[pid 21052] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21052] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21052] write(4, "78", 2)           = 2
[pid 21052] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21052] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21052] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21052] exit_group(0)               = ?
[pid 21052] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21052, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21053 attached
, child_tidptr=0x555555af35d0) = 21053
[pid 21053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21053] setpgid(0, 0)               = 0
[pid 21053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21053] write(3, "1000", 4)         = 4
[pid 21053] close(3)                    = 0
[pid 21053] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21053] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21053] write(4, "78", 2)           = 2
[pid 21053] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21053] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21053] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21053] exit_group(0)               = ?
[pid 21053] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21053, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21054
./strace-static-x86_64: Process 21054 attached
[pid 21054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21054] setpgid(0, 0)               = 0
[pid 21054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21054] write(3, "1000", 4)         = 4
[pid 21054] close(3)                    = 0
[pid 21054] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21054] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21054] write(4, "78", 2)           = 2
[pid 21054] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21054] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21054] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21054] exit_group(0)               = ?
[pid 21054] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21054, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21055
./strace-static-x86_64: Process 21055 attached
[pid 21055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21055] setpgid(0, 0)               = 0
[pid 21055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21055] write(3, "1000", 4)         = 4
[pid 21055] close(3)                    = 0
[pid 21055] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21055] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21055] write(4, "78", 2)           = 2
[pid 21055] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21055] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21055] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21055] exit_group(0)               = ?
[pid 21055] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21055, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21056
./strace-static-x86_64: Process 21056 attached
[pid 21056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21056] setpgid(0, 0)               = 0
[pid 21056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21056] write(3, "1000", 4)         = 4
[pid 21056] close(3)                    = 0
[pid 21056] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21056] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21056] write(4, "78", 2)           = 2
[pid 21056] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21056] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21056] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21056] exit_group(0)               = ?
[pid 21056] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21056, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21057 attached
, child_tidptr=0x555555af35d0) = 21057
[pid 21057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21057] setpgid(0, 0)               = 0
[pid 21057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21057] write(3, "1000", 4)         = 4
[pid 21057] close(3)                    = 0
[pid 21057] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21057] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21057] write(4, "78", 2)           = 2
[pid 21057] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21057] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21057] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21057] exit_group(0)               = ?
[pid 21057] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21057, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21058 attached
, child_tidptr=0x555555af35d0) = 21058
[pid 21058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21058] setpgid(0, 0)               = 0
[pid 21058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21058] write(3, "1000", 4)         = 4
[pid 21058] close(3)                    = 0
[pid 21058] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21058] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21058] write(4, "78", 2)           = 2
[pid 21058] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21058] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21058] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21058] exit_group(0)               = ?
[pid 21058] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21058, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21059 attached
, child_tidptr=0x555555af35d0) = 21059
[pid 21059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21059] setpgid(0, 0)               = 0
[pid 21059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21059] write(3, "1000", 4)         = 4
[pid 21059] close(3)                    = 0
[pid 21059] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21059] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21059] write(4, "78", 2)           = 2
[pid 21059] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21059] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21059] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21059] exit_group(0)               = ?
[pid 21059] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21059, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21060 attached
, child_tidptr=0x555555af35d0) = 21060
[pid 21060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21060] setpgid(0, 0)               = 0
[pid 21060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21060] write(3, "1000", 4)         = 4
[pid 21060] close(3)                    = 0
[pid 21060] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21060] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21060] write(4, "78", 2)           = 2
[pid 21060] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21060] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21060] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21060] exit_group(0)               = ?
[pid 21060] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21060, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21061
./strace-static-x86_64: Process 21061 attached
[pid 21061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21061] setpgid(0, 0)               = 0
[pid 21061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21061] write(3, "1000", 4)         = 4
[pid 21061] close(3)                    = 0
[pid 21061] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21061] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21061] write(4, "78", 2)           = 2
[pid 21061] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21061] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21061] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21061] exit_group(0)               = ?
[pid 21061] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21061, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21062
./strace-static-x86_64: Process 21062 attached
[pid 21062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21062] setpgid(0, 0)               = 0
[pid 21062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21062] write(3, "1000", 4)         = 4
[pid 21062] close(3)                    = 0
[pid 21062] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21062] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21062] write(4, "78", 2)           = 2
[pid 21062] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21062] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21062] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21062] exit_group(0)               = ?
[pid 21062] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21062, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21063 attached
, child_tidptr=0x555555af35d0) = 21063
[pid 21063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21063] setpgid(0, 0)               = 0
[pid 21063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21063] write(3, "1000", 4)         = 4
[pid 21063] close(3)                    = 0
[pid 21063] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21063] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21063] write(4, "78", 2)           = 2
[pid 21063] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21063] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21063] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21063] exit_group(0)               = ?
[pid 21063] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21063, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21064 attached
, child_tidptr=0x555555af35d0) = 21064
[pid 21064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21064] setpgid(0, 0)               = 0
[pid 21064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21064] write(3, "1000", 4)         = 4
[pid 21064] close(3)                    = 0
[pid 21064] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21064] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21064] write(4, "78", 2)           = 2
[pid 21064] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21064] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21064] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21064] exit_group(0)               = ?
[pid 21064] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21064, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21065 attached
, child_tidptr=0x555555af35d0) = 21065
[pid 21065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21065] setpgid(0, 0)               = 0
[pid 21065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21065] write(3, "1000", 4)         = 4
[pid 21065] close(3)                    = 0
[pid 21065] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21065] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21065] write(4, "78", 2)           = 2
[pid 21065] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21065] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21065] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21065] exit_group(0)               = ?
[pid 21065] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21065, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21066 attached
, child_tidptr=0x555555af35d0) = 21066
[pid 21066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21066] setpgid(0, 0)               = 0
[pid 21066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21066] write(3, "1000", 4)         = 4
[pid 21066] close(3)                    = 0
[pid 21066] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21066] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21066] write(4, "78", 2)           = 2
[pid 21066] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21066] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21066] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21066] exit_group(0)               = ?
[pid 21066] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21066, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21067
./strace-static-x86_64: Process 21067 attached
[pid 21067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21067] setpgid(0, 0)               = 0
[pid 21067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21067] write(3, "1000", 4)         = 4
[pid 21067] close(3)                    = 0
[pid 21067] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21067] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21067] write(4, "78", 2)           = 2
[pid 21067] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21067] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21067] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21067] exit_group(0)               = ?
[pid 21067] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21067, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21068 attached
, child_tidptr=0x555555af35d0) = 21068
[pid 21068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21068] setpgid(0, 0)               = 0
[pid 21068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21068] write(3, "1000", 4)         = 4
[pid 21068] close(3)                    = 0
[pid 21068] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21068] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21068] write(4, "78", 2)           = 2
[pid 21068] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21068] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21068] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21068] exit_group(0)               = ?
[pid 21068] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21068, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21069 attached
, child_tidptr=0x555555af35d0) = 21069
[pid 21069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21069] setpgid(0, 0)               = 0
[pid 21069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21069] write(3, "1000", 4)         = 4
[pid 21069] close(3)                    = 0
[pid 21069] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21069] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21069] write(4, "78", 2)           = 2
[pid 21069] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21069] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21069] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21069] exit_group(0)               = ?
[pid 21069] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21069, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21070 attached
, child_tidptr=0x555555af35d0) = 21070
[pid 21070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21070] setpgid(0, 0)               = 0
[pid 21070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21070] write(3, "1000", 4)         = 4
[pid 21070] close(3)                    = 0
[pid 21070] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21070] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21070] write(4, "78", 2)           = 2
[pid 21070] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21070] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21070] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21070] exit_group(0)               = ?
[pid 21070] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21070, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21071
./strace-static-x86_64: Process 21071 attached
[pid 21071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21071] setpgid(0, 0)               = 0
[pid 21071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21071] write(3, "1000", 4)         = 4
[pid 21071] close(3)                    = 0
[pid 21071] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21071] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21071] write(4, "78", 2)           = 2
[pid 21071] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21071] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21071] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21071] exit_group(0)               = ?
[pid 21071] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21071, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21072
./strace-static-x86_64: Process 21072 attached
[pid 21072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21072] setpgid(0, 0)               = 0
[pid 21072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21072] write(3, "1000", 4)         = 4
[pid 21072] close(3)                    = 0
[pid 21072] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21072] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21072] write(4, "78", 2)           = 2
[pid 21072] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21072] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21072] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21072] exit_group(0)               = ?
[pid 21072] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21072, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21073 attached
, child_tidptr=0x555555af35d0) = 21073
[pid 21073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21073] setpgid(0, 0)               = 0
[pid 21073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21073] write(3, "1000", 4)         = 4
[pid 21073] close(3)                    = 0
[pid 21073] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21073] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21073] write(4, "78", 2)           = 2
[pid 21073] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21073] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21073] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21073] exit_group(0)               = ?
[pid 21073] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21073, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21074 attached
, child_tidptr=0x555555af35d0) = 21074
[pid 21074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21074] setpgid(0, 0)               = 0
[pid 21074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21074] write(3, "1000", 4)         = 4
[pid 21074] close(3)                    = 0
[pid 21074] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21074] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21074] write(4, "78", 2)           = 2
[pid 21074] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21074] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21074] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21074] exit_group(0)               = ?
[pid 21074] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21074, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21075 attached
, child_tidptr=0x555555af35d0) = 21075
[pid 21075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21075] setpgid(0, 0)               = 0
[pid 21075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21075] write(3, "1000", 4)         = 4
[pid 21075] close(3)                    = 0
[pid 21075] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21075] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21075] write(4, "78", 2)           = 2
[pid 21075] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21075] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21075] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21075] exit_group(0)               = ?
[pid 21075] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21075, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21076 attached
, child_tidptr=0x555555af35d0) = 21076
[pid 21076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21076] setpgid(0, 0)               = 0
[pid 21076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21076] write(3, "1000", 4)         = 4
[pid 21076] close(3)                    = 0
[pid 21076] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21076] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21076] write(4, "78", 2)           = 2
[pid 21076] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21076] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21076] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21076] exit_group(0)               = ?
[pid 21076] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21076, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21077 attached
, child_tidptr=0x555555af35d0) = 21077
[pid 21077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21077] setpgid(0, 0)               = 0
[pid 21077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21077] write(3, "1000", 4)         = 4
[pid 21077] close(3)                    = 0
[pid 21077] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21077] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21077] write(4, "78", 2)           = 2
[pid 21077] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21077] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21077] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21077] exit_group(0)               = ?
[pid 21077] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21077, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21078 attached
, child_tidptr=0x555555af35d0) = 21078
[pid 21078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21078] setpgid(0, 0)               = 0
[pid 21078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21078] write(3, "1000", 4)         = 4
[pid 21078] close(3)                    = 0
[pid 21078] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21078] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21078] write(4, "78", 2)           = 2
[pid 21078] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21078] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21078] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21078] exit_group(0)               = ?
[pid 21078] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21078, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21079 attached
, child_tidptr=0x555555af35d0) = 21079
[pid 21079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21079] setpgid(0, 0)               = 0
[pid 21079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21079] write(3, "1000", 4)         = 4
[pid 21079] close(3)                    = 0
[pid 21079] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21079] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21079] write(4, "78", 2)           = 2
[pid 21079] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21079] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21079] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21079] exit_group(0)               = ?
[pid 21079] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21079, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21080
./strace-static-x86_64: Process 21080 attached
[pid 21080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21080] setpgid(0, 0)               = 0
[pid 21080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21080] write(3, "1000", 4)         = 4
[pid 21080] close(3)                    = 0
[pid 21080] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21080] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21080] write(4, "78", 2)           = 2
[pid 21080] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21080] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21080] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21080] exit_group(0)               = ?
[pid 21080] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21080, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21081 attached
, child_tidptr=0x555555af35d0) = 21081
[pid 21081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21081] setpgid(0, 0)               = 0
[pid 21081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21081] write(3, "1000", 4)         = 4
[pid 21081] close(3)                    = 0
[pid 21081] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21081] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21081] write(4, "78", 2)           = 2
[pid 21081] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21081] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21081] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21081] exit_group(0)               = ?
[pid 21081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21081, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21082 attached
, child_tidptr=0x555555af35d0) = 21082
[pid 21082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21082] setpgid(0, 0)               = 0
[pid 21082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21082] write(3, "1000", 4)         = 4
[pid 21082] close(3)                    = 0
[pid 21082] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21082] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21082] write(4, "78", 2)           = 2
[pid 21082] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21082] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21082] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21082] exit_group(0)               = ?
[pid 21082] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21082, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21083 attached
, child_tidptr=0x555555af35d0) = 21083
[pid 21083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21083] setpgid(0, 0)               = 0
[pid 21083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21083] write(3, "1000", 4)         = 4
[pid 21083] close(3)                    = 0
[pid 21083] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21083] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21083] write(4, "78", 2)           = 2
[pid 21083] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21083] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21083] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21083] exit_group(0)               = ?
[pid 21083] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21083, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21084 attached
, child_tidptr=0x555555af35d0) = 21084
[pid 21084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21084] setpgid(0, 0)               = 0
[pid 21084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21084] write(3, "1000", 4)         = 4
[pid 21084] close(3)                    = 0
[pid 21084] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21084] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21084] write(4, "78", 2)           = 2
[pid 21084] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21084] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21084] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21084] exit_group(0)               = ?
[pid 21084] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21084, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21085 attached
, child_tidptr=0x555555af35d0) = 21085
[pid 21085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21085] setpgid(0, 0)               = 0
[pid 21085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21085] write(3, "1000", 4)         = 4
[pid 21085] close(3)                    = 0
[pid 21085] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21085] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21085] write(4, "78", 2)           = 2
[pid 21085] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21085] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21085] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21085] exit_group(0)               = ?
[pid 21085] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21085, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21086 attached
, child_tidptr=0x555555af35d0) = 21086
[pid 21086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21086] setpgid(0, 0)               = 0
[pid 21086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21086] write(3, "1000", 4)         = 4
[pid 21086] close(3)                    = 0
[pid 21086] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21086] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21086] write(4, "78", 2)           = 2
[pid 21086] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21086] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21086] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21086] exit_group(0)               = ?
[pid 21086] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21086, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21087 attached
, child_tidptr=0x555555af35d0) = 21087
[pid 21087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21087] setpgid(0, 0)               = 0
[pid 21087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21087] write(3, "1000", 4)         = 4
[pid 21087] close(3)                    = 0
[pid 21087] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21087] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21087] write(4, "78", 2)           = 2
[pid 21087] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21087] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21087] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21087] exit_group(0)               = ?
[pid 21087] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21087, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21088 attached
, child_tidptr=0x555555af35d0) = 21088
[pid 21088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21088] setpgid(0, 0)               = 0
[pid 21088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21088] write(3, "1000", 4)         = 4
[pid 21088] close(3)                    = 0
[pid 21088] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21088] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21088] write(4, "78", 2)           = 2
[pid 21088] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21088] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21088] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21088] exit_group(0)               = ?
[pid 21088] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21088, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21089 attached
, child_tidptr=0x555555af35d0) = 21089
[pid 21089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21089] setpgid(0, 0)               = 0
[pid 21089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21089] write(3, "1000", 4)         = 4
[pid 21089] close(3)                    = 0
[pid 21089] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21089] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21089] write(4, "78", 2)           = 2
[pid 21089] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21089] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21089] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21089] exit_group(0)               = ?
[pid 21089] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21089, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21090
./strace-static-x86_64: Process 21090 attached
[pid 21090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21090] setpgid(0, 0)               = 0
[pid 21090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21090] write(3, "1000", 4)         = 4
[pid 21090] close(3)                    = 0
[pid 21090] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21090] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21090] write(4, "78", 2)           = 2
[pid 21090] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21090] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21090] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21090] exit_group(0)               = ?
[pid 21090] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21090, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21091 attached
, child_tidptr=0x555555af35d0) = 21091
[pid 21091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21091] setpgid(0, 0)               = 0
[pid 21091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21091] write(3, "1000", 4)         = 4
[pid 21091] close(3)                    = 0
[pid 21091] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21091] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21091] write(4, "78", 2)           = 2
[pid 21091] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21091] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21091] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21091] exit_group(0)               = ?
[pid 21091] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21091, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21092 attached
, child_tidptr=0x555555af35d0) = 21092
[pid 21092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21092] setpgid(0, 0)               = 0
[pid 21092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21092] write(3, "1000", 4)         = 4
[pid 21092] close(3)                    = 0
[pid 21092] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21092] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21092] write(4, "78", 2)           = 2
[pid 21092] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21092] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21092] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21092] exit_group(0)               = ?
[pid 21092] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21092, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21093 attached
, child_tidptr=0x555555af35d0) = 21093
[pid 21093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21093] setpgid(0, 0)               = 0
[pid 21093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21093] write(3, "1000", 4)         = 4
[pid 21093] close(3)                    = 0
[pid 21093] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21093] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21093] write(4, "78", 2)           = 2
[pid 21093] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21093] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21093] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21093] exit_group(0)               = ?
[pid 21093] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21093, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21094 attached
, child_tidptr=0x555555af35d0) = 21094
[pid 21094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21094] setpgid(0, 0)               = 0
[pid 21094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21094] write(3, "1000", 4)         = 4
[pid 21094] close(3)                    = 0
[pid 21094] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21094] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21094] write(4, "78", 2)           = 2
[pid 21094] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21094] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21094] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21094] exit_group(0)               = ?
[pid 21094] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21094, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21095 attached
, child_tidptr=0x555555af35d0) = 21095
[pid 21095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21095] setpgid(0, 0)               = 0
[pid 21095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21095] write(3, "1000", 4)         = 4
[pid 21095] close(3)                    = 0
[pid 21095] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21095] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21095] write(4, "78", 2)           = 2
[pid 21095] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21095] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21095] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21095] exit_group(0)               = ?
[pid 21095] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21095, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21096 attached
, child_tidptr=0x555555af35d0) = 21096
[pid 21096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21096] setpgid(0, 0)               = 0
[pid 21096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21096] write(3, "1000", 4)         = 4
[pid 21096] close(3)                    = 0
[pid 21096] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21096] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21096] write(4, "78", 2)           = 2
[pid 21096] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21096] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21096] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21096] exit_group(0)               = ?
[pid 21096] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21096, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21097 attached
, child_tidptr=0x555555af35d0) = 21097
[pid 21097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21097] setpgid(0, 0)               = 0
[pid 21097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21097] write(3, "1000", 4)         = 4
[pid 21097] close(3)                    = 0
[pid 21097] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21097] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21097] write(4, "78", 2)           = 2
[pid 21097] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21097] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21097] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21097] exit_group(0)               = ?
[pid 21097] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21097, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21098 attached
, child_tidptr=0x555555af35d0) = 21098
[pid 21098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21098] setpgid(0, 0)               = 0
[pid 21098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21098] write(3, "1000", 4)         = 4
[pid 21098] close(3)                    = 0
[pid 21098] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21098] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21098] write(4, "78", 2)           = 2
[pid 21098] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21098] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21098] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21098] exit_group(0)               = ?
[pid 21098] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21098, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21099 attached
, child_tidptr=0x555555af35d0) = 21099
[pid 21099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21099] setpgid(0, 0)               = 0
[pid 21099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21099] write(3, "1000", 4)         = 4
[pid 21099] close(3)                    = 0
[pid 21099] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21099] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21099] write(4, "78", 2)           = 2
[pid 21099] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21099] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21099] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21099] exit_group(0)               = ?
[pid 21099] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21099, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21100 attached
, child_tidptr=0x555555af35d0) = 21100
[pid 21100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21100] setpgid(0, 0)               = 0
[pid 21100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21100] write(3, "1000", 4)         = 4
[pid 21100] close(3)                    = 0
[pid 21100] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21100] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21100] write(4, "78", 2)           = 2
[pid 21100] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21100] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21100] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21100] exit_group(0)               = ?
[pid 21100] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21100, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21101 attached
, child_tidptr=0x555555af35d0) = 21101
[pid 21101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21101] setpgid(0, 0)               = 0
[pid 21101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21101] write(3, "1000", 4)         = 4
[pid 21101] close(3)                    = 0
[pid 21101] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21101] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21101] write(4, "78", 2)           = 2
[pid 21101] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21101] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21101] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21101] exit_group(0)               = ?
[pid 21101] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21101, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21102 attached
, child_tidptr=0x555555af35d0) = 21102
[pid 21102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21102] setpgid(0, 0)               = 0
[pid 21102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21102] write(3, "1000", 4)         = 4
[pid 21102] close(3)                    = 0
[pid 21102] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21102] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21102] write(4, "78", 2)           = 2
[pid 21102] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21102] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21102] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21102] exit_group(0)               = ?
[pid 21102] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21102, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21103 attached
, child_tidptr=0x555555af35d0) = 21103
[pid 21103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21103] setpgid(0, 0)               = 0
[pid 21103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21103] write(3, "1000", 4)         = 4
[pid 21103] close(3)                    = 0
[pid 21103] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21103] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21103] write(4, "78", 2)           = 2
[pid 21103] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21103] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21103] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21103] exit_group(0)               = ?
[pid 21103] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21103, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21104 attached
, child_tidptr=0x555555af35d0) = 21104
[pid 21104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21104] setpgid(0, 0)               = 0
[pid 21104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21104] write(3, "1000", 4)         = 4
[pid 21104] close(3)                    = 0
[pid 21104] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21104] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21104] write(4, "78", 2)           = 2
[pid 21104] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21104] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21104] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21104] exit_group(0)               = ?
[pid 21104] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21104, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21105
./strace-static-x86_64: Process 21105 attached
[pid 21105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21105] setpgid(0, 0)               = 0
[pid 21105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21105] write(3, "1000", 4)         = 4
[pid 21105] close(3)                    = 0
[pid 21105] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21105] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21105] write(4, "78", 2)           = 2
[pid 21105] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21105] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21105] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21105] exit_group(0)               = ?
[pid 21105] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21105, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21106 attached
, child_tidptr=0x555555af35d0) = 21106
[pid 21106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21106] setpgid(0, 0)               = 0
[pid 21106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21106] write(3, "1000", 4)         = 4
[pid 21106] close(3)                    = 0
[pid 21106] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21106] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21106] write(4, "78", 2)           = 2
[pid 21106] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21106] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21106] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21106] exit_group(0)               = ?
[pid 21106] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21106, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21107 attached
, child_tidptr=0x555555af35d0) = 21107
[pid 21107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21107] setpgid(0, 0)               = 0
[pid 21107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21107] write(3, "1000", 4)         = 4
[pid 21107] close(3)                    = 0
[pid 21107] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21107] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21107] write(4, "78", 2)           = 2
[pid 21107] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21107] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21107] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21107] exit_group(0)               = ?
[pid 21107] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21107, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21108 attached
, child_tidptr=0x555555af35d0) = 21108
[pid 21108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21108] setpgid(0, 0)               = 0
[pid 21108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21108] write(3, "1000", 4)         = 4
[pid 21108] close(3)                    = 0
[pid 21108] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21108] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21108] write(4, "78", 2)           = 2
[pid 21108] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21108] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21108] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21108] exit_group(0)               = ?
[pid 21108] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21108, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21109 attached
, child_tidptr=0x555555af35d0) = 21109
[pid 21109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21109] setpgid(0, 0)               = 0
[pid 21109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21109] write(3, "1000", 4)         = 4
[pid 21109] close(3)                    = 0
[pid 21109] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21109] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21109] write(4, "78", 2)           = 2
[pid 21109] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21109] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21109] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21109] exit_group(0)               = ?
[pid 21109] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21109, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21110 attached
, child_tidptr=0x555555af35d0) = 21110
[pid 21110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21110] setpgid(0, 0)               = 0
[pid 21110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21110] write(3, "1000", 4)         = 4
[pid 21110] close(3)                    = 0
[pid 21110] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21110] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21110] write(4, "78", 2)           = 2
[pid 21110] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21110] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21110] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21110] exit_group(0)               = ?
[pid 21110] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21110, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21111 attached
, child_tidptr=0x555555af35d0) = 21111
[pid 21111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21111] setpgid(0, 0)               = 0
[pid 21111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21111] write(3, "1000", 4)         = 4
[pid 21111] close(3)                    = 0
[pid 21111] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21111] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21111] write(4, "78", 2)           = 2
[pid 21111] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21111] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21111] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21111] exit_group(0)               = ?
[pid 21111] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21111, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21112 attached
, child_tidptr=0x555555af35d0) = 21112
[pid 21112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21112] setpgid(0, 0)               = 0
[pid 21112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21112] write(3, "1000", 4)         = 4
[pid 21112] close(3)                    = 0
[pid 21112] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21112] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21112] write(4, "78", 2)           = 2
[pid 21112] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21112] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21112] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21112] exit_group(0)               = ?
[pid 21112] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21112, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21113 attached
, child_tidptr=0x555555af35d0) = 21113
[pid 21113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21113] setpgid(0, 0)               = 0
[pid 21113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21113] write(3, "1000", 4)         = 4
[pid 21113] close(3)                    = 0
[pid 21113] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21113] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21113] write(4, "78", 2)           = 2
[pid 21113] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21113] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21113] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21113] exit_group(0)               = ?
[pid 21113] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21113, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21114 attached
, child_tidptr=0x555555af35d0) = 21114
[pid 21114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21114] setpgid(0, 0)               = 0
[pid 21114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21114] write(3, "1000", 4)         = 4
[pid 21114] close(3)                    = 0
[pid 21114] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21114] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21114] write(4, "78", 2)           = 2
[pid 21114] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21114] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21114] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21114] exit_group(0)               = ?
[pid 21114] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21114, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21115
./strace-static-x86_64: Process 21115 attached
[pid 21115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21115] setpgid(0, 0)               = 0
[pid 21115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21115] write(3, "1000", 4)         = 4
[pid 21115] close(3)                    = 0
[pid 21115] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21115] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21115] write(4, "78", 2)           = 2
[pid 21115] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21115] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21115] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21115] exit_group(0)               = ?
[pid 21115] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21115, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21116 attached
, child_tidptr=0x555555af35d0) = 21116
[pid 21116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21116] setpgid(0, 0)               = 0
[pid 21116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21116] write(3, "1000", 4)         = 4
[pid 21116] close(3)                    = 0
[pid 21116] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21116] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21116] write(4, "78", 2)           = 2
[pid 21116] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21116] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21116] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21116] exit_group(0)               = ?
[pid 21116] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21116, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21117
./strace-static-x86_64: Process 21117 attached
[pid 21117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21117] setpgid(0, 0)               = 0
[pid 21117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21117] write(3, "1000", 4)         = 4
[pid 21117] close(3)                    = 0
[pid 21117] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21117] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21117] write(4, "78", 2)           = 2
[pid 21117] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21117] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21117] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21117] exit_group(0)               = ?
[pid 21117] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21117, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21118 attached
, child_tidptr=0x555555af35d0) = 21118
[pid 21118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21118] setpgid(0, 0)               = 0
[pid 21118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21118] write(3, "1000", 4)         = 4
[pid 21118] close(3)                    = 0
[pid 21118] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21118] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21118] write(4, "78", 2)           = 2
[pid 21118] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21118] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21118] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21118] exit_group(0)               = ?
[pid 21118] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21118, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21119 attached
, child_tidptr=0x555555af35d0) = 21119
[pid 21119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21119] setpgid(0, 0)               = 0
[pid 21119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21119] write(3, "1000", 4)         = 4
[pid 21119] close(3)                    = 0
[pid 21119] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21119] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21119] write(4, "78", 2)           = 2
[pid 21119] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21119] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21119] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21119] exit_group(0)               = ?
[pid 21119] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21119, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21120 attached
, child_tidptr=0x555555af35d0) = 21120
[pid 21120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21120] setpgid(0, 0)               = 0
[pid 21120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21120] write(3, "1000", 4)         = 4
[pid 21120] close(3)                    = 0
[pid 21120] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21120] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21120] write(4, "78", 2)           = 2
[pid 21120] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21120] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21120] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21120] exit_group(0)               = ?
[pid 21120] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21120, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21121 attached
, child_tidptr=0x555555af35d0) = 21121
[pid 21121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21121] setpgid(0, 0)               = 0
[pid 21121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21121] write(3, "1000", 4)         = 4
[pid 21121] close(3)                    = 0
[pid 21121] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21121] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21121] write(4, "78", 2)           = 2
[pid 21121] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21121] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21121] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21121] exit_group(0)               = ?
[pid 21121] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21121, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21122
./strace-static-x86_64: Process 21122 attached
[pid 21122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21122] setpgid(0, 0)               = 0
[pid 21122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21122] write(3, "1000", 4)         = 4
[pid 21122] close(3)                    = 0
[pid 21122] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21122] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21122] write(4, "78", 2)           = 2
[pid 21122] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21122] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21122] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21122] exit_group(0)               = ?
[pid 21122] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21122, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21123 attached
, child_tidptr=0x555555af35d0) = 21123
[pid 21123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21123] setpgid(0, 0)               = 0
[pid 21123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21123] write(3, "1000", 4)         = 4
[pid 21123] close(3)                    = 0
[pid 21123] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21123] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21123] write(4, "78", 2)           = 2
[pid 21123] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21123] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21123] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21123] exit_group(0)               = ?
[pid 21123] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21123, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21124 attached
, child_tidptr=0x555555af35d0) = 21124
[pid 21124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21124] setpgid(0, 0)               = 0
[pid 21124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21124] write(3, "1000", 4)         = 4
[pid 21124] close(3)                    = 0
[pid 21124] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21124] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21124] write(4, "78", 2)           = 2
[pid 21124] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21124] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21124] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21124] exit_group(0)               = ?
[pid 21124] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21124, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21125 attached
, child_tidptr=0x555555af35d0) = 21125
[pid 21125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21125] setpgid(0, 0)               = 0
[pid 21125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21125] write(3, "1000", 4)         = 4
[pid 21125] close(3)                    = 0
[pid 21125] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21125] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21125] write(4, "78", 2)           = 2
[pid 21125] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21125] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21125] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21125] exit_group(0)               = ?
[pid 21125] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21125, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21126 attached
, child_tidptr=0x555555af35d0) = 21126
[pid 21126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21126] setpgid(0, 0)               = 0
[pid 21126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21126] write(3, "1000", 4)         = 4
[pid 21126] close(3)                    = 0
[pid 21126] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21126] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21126] write(4, "78", 2)           = 2
[pid 21126] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21126] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21126] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21126] exit_group(0)               = ?
[pid 21126] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21126, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21127
./strace-static-x86_64: Process 21127 attached
[pid 21127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21127] setpgid(0, 0)               = 0
[pid 21127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21127] write(3, "1000", 4)         = 4
[pid 21127] close(3)                    = 0
[pid 21127] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21127] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21127] write(4, "78", 2)           = 2
[pid 21127] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21127] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21127] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21127] exit_group(0)               = ?
[pid 21127] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21127, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21128 attached
, child_tidptr=0x555555af35d0) = 21128
[pid 21128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21128] setpgid(0, 0)               = 0
[pid 21128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21128] write(3, "1000", 4)         = 4
[pid 21128] close(3)                    = 0
[pid 21128] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21128] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21128] write(4, "78", 2)           = 2
[pid 21128] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21128] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21128] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21128] exit_group(0)               = ?
[pid 21128] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21128, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21129
./strace-static-x86_64: Process 21129 attached
[pid 21129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21129] setpgid(0, 0)               = 0
[pid 21129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21129] write(3, "1000", 4)         = 4
[pid 21129] close(3)                    = 0
[pid 21129] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21129] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21129] write(4, "78", 2)           = 2
[pid 21129] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21129] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21129] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21129] exit_group(0)               = ?
[pid 21129] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21129, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21130
./strace-static-x86_64: Process 21130 attached
[pid 21130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21130] setpgid(0, 0)               = 0
[pid 21130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21130] write(3, "1000", 4)         = 4
[pid 21130] close(3)                    = 0
[pid 21130] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21130] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21130] write(4, "78", 2)           = 2
[pid 21130] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21130] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21130] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21130] exit_group(0)               = ?
[pid 21130] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21130, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21131 attached
, child_tidptr=0x555555af35d0) = 21131
[pid 21131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21131] setpgid(0, 0)               = 0
[pid 21131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21131] write(3, "1000", 4)         = 4
[pid 21131] close(3)                    = 0
[pid 21131] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21131] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21131] write(4, "78", 2)           = 2
[pid 21131] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21131] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21131] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21131] exit_group(0)               = ?
[pid 21131] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21131, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21132 attached
, child_tidptr=0x555555af35d0) = 21132
[pid 21132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21132] setpgid(0, 0)               = 0
[pid 21132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21132] write(3, "1000", 4)         = 4
[pid 21132] close(3)                    = 0
[pid 21132] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21132] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21132] write(4, "78", 2)           = 2
[pid 21132] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21132] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21132] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21132] exit_group(0)               = ?
[pid 21132] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21132, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21133 attached
, child_tidptr=0x555555af35d0) = 21133
[pid 21133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21133] setpgid(0, 0)               = 0
[pid 21133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21133] write(3, "1000", 4)         = 4
[pid 21133] close(3)                    = 0
[pid 21133] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21133] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21133] write(4, "78", 2)           = 2
[pid 21133] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21133] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21133] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21133] exit_group(0)               = ?
[pid 21133] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21133, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21134 attached
, child_tidptr=0x555555af35d0) = 21134
[pid 21134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21134] setpgid(0, 0)               = 0
[pid 21134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21134] write(3, "1000", 4)         = 4
[pid 21134] close(3)                    = 0
[pid 21134] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21134] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21134] write(4, "78", 2)           = 2
[pid 21134] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21134] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21134] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21134] exit_group(0)               = ?
[pid 21134] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21134, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21135 attached
, child_tidptr=0x555555af35d0) = 21135
[pid 21135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21135] setpgid(0, 0)               = 0
[pid 21135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21135] write(3, "1000", 4)         = 4
[pid 21135] close(3)                    = 0
[pid 21135] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21135] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21135] write(4, "78", 2)           = 2
[pid 21135] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21135] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21135] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21135] exit_group(0)               = ?
[pid 21135] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21135, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21136
./strace-static-x86_64: Process 21136 attached
[pid 21136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21136] setpgid(0, 0)               = 0
[pid 21136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21136] write(3, "1000", 4)         = 4
[pid 21136] close(3)                    = 0
[pid 21136] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21136] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21136] write(4, "78", 2)           = 2
[pid 21136] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21136] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21136] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21136] exit_group(0)               = ?
[pid 21136] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21136, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21137 attached
, child_tidptr=0x555555af35d0) = 21137
[pid 21137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21137] setpgid(0, 0)               = 0
[pid 21137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21137] write(3, "1000", 4)         = 4
[pid 21137] close(3)                    = 0
[pid 21137] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21137] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21137] write(4, "78", 2)           = 2
[pid 21137] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21137] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21137] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21137] exit_group(0)               = ?
[pid 21137] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21137, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21138 attached
, child_tidptr=0x555555af35d0) = 21138
[pid 21138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21138] setpgid(0, 0)               = 0
[pid 21138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21138] write(3, "1000", 4)         = 4
[pid 21138] close(3)                    = 0
[pid 21138] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21138] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21138] write(4, "78", 2)           = 2
[pid 21138] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21138] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21138] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21138] exit_group(0)               = ?
[pid 21138] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21138, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21139 attached
, child_tidptr=0x555555af35d0) = 21139
[pid 21139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21139] setpgid(0, 0)               = 0
[pid 21139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21139] write(3, "1000", 4)         = 4
[pid 21139] close(3)                    = 0
[pid 21139] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21139] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21139] write(4, "78", 2)           = 2
[pid 21139] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21139] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21139] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21139] exit_group(0)               = ?
[pid 21139] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21139, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21140 attached
, child_tidptr=0x555555af35d0) = 21140
[pid 21140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21140] setpgid(0, 0)               = 0
[pid 21140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21140] write(3, "1000", 4)         = 4
[pid 21140] close(3)                    = 0
[pid 21140] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21140] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21140] write(4, "78", 2)           = 2
[pid 21140] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21140] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21140] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21140] exit_group(0)               = ?
[pid 21140] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21140, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21141 attached
, child_tidptr=0x555555af35d0) = 21141
[pid 21141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21141] setpgid(0, 0)               = 0
[pid 21141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21141] write(3, "1000", 4)         = 4
[pid 21141] close(3)                    = 0
[pid 21141] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21141] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21141] write(4, "78", 2)           = 2
[pid 21141] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21141] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21141] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21141] exit_group(0)               = ?
[pid 21141] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21141, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21142 attached
, child_tidptr=0x555555af35d0) = 21142
[pid 21142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21142] setpgid(0, 0)               = 0
[pid 21142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21142] write(3, "1000", 4)         = 4
[pid 21142] close(3)                    = 0
[pid 21142] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21142] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21142] write(4, "78", 2)           = 2
[pid 21142] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21142] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21142] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21142] exit_group(0)               = ?
[pid 21142] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21142, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21143 attached
, child_tidptr=0x555555af35d0) = 21143
[pid 21143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21143] setpgid(0, 0)               = 0
[pid 21143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21143] write(3, "1000", 4)         = 4
[pid 21143] close(3)                    = 0
[pid 21143] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21143] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21143] write(4, "78", 2)           = 2
[pid 21143] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21143] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21143] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21143] exit_group(0)               = ?
[pid 21143] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21143, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21144 attached
, child_tidptr=0x555555af35d0) = 21144
[pid 21144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21144] setpgid(0, 0)               = 0
[pid 21144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21144] write(3, "1000", 4)         = 4
[pid 21144] close(3)                    = 0
[pid 21144] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21144] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21144] write(4, "78", 2)           = 2
[pid 21144] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21144] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21144] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21144] exit_group(0)               = ?
[pid 21144] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21144, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21145 attached
, child_tidptr=0x555555af35d0) = 21145
[pid 21145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21145] setpgid(0, 0)               = 0
[pid 21145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21145] write(3, "1000", 4)         = 4
[pid 21145] close(3)                    = 0
[pid 21145] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21145] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21145] write(4, "78", 2)           = 2
[pid 21145] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21145] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21145] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21145] exit_group(0)               = ?
[pid 21145] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21145, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21146 attached
, child_tidptr=0x555555af35d0) = 21146
[pid 21146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21146] setpgid(0, 0)               = 0
[pid 21146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21146] write(3, "1000", 4)         = 4
[pid 21146] close(3)                    = 0
[pid 21146] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21146] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21146] write(4, "78", 2)           = 2
[pid 21146] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21146] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21146] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21146] exit_group(0)               = ?
[pid 21146] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21146, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21147 attached
, child_tidptr=0x555555af35d0) = 21147
[pid 21147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21147] setpgid(0, 0)               = 0
[pid 21147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21147] write(3, "1000", 4)         = 4
[pid 21147] close(3)                    = 0
[pid 21147] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21147] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21147] write(4, "78", 2)           = 2
[pid 21147] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21147] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21147] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21147] exit_group(0)               = ?
[pid 21147] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21147, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21148 attached
, child_tidptr=0x555555af35d0) = 21148
[pid 21148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21148] setpgid(0, 0)               = 0
[pid 21148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21148] write(3, "1000", 4)         = 4
[pid 21148] close(3)                    = 0
[pid 21148] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21148] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21148] write(4, "78", 2)           = 2
[pid 21148] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21148] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21148] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21148] exit_group(0)               = ?
[pid 21148] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21148, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21149 attached
, child_tidptr=0x555555af35d0) = 21149
[pid 21149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21149] setpgid(0, 0)               = 0
[pid 21149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21149] write(3, "1000", 4)         = 4
[pid 21149] close(3)                    = 0
[pid 21149] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21149] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21149] write(4, "78", 2)           = 2
[pid 21149] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21149] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21149] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21149] exit_group(0)               = ?
[pid 21149] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21149, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21150 attached
, child_tidptr=0x555555af35d0) = 21150
[pid 21150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21150] setpgid(0, 0)               = 0
[pid 21150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21150] write(3, "1000", 4)         = 4
[pid 21150] close(3)                    = 0
[pid 21150] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21150] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21150] write(4, "78", 2)           = 2
[pid 21150] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21150] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21150] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21150] exit_group(0)               = ?
[pid 21150] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21150, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21151 attached
, child_tidptr=0x555555af35d0) = 21151
[pid 21151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21151] setpgid(0, 0)               = 0
[pid 21151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21151] write(3, "1000", 4)         = 4
[pid 21151] close(3)                    = 0
[pid 21151] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21151] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21151] write(4, "78", 2)           = 2
[pid 21151] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21151] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21151] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21151] exit_group(0)               = ?
[pid 21151] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21151, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21152 attached
, child_tidptr=0x555555af35d0) = 21152
[pid 21152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21152] setpgid(0, 0)               = 0
[pid 21152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21152] write(3, "1000", 4)         = 4
[pid 21152] close(3)                    = 0
[pid 21152] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21152] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21152] write(4, "78", 2)           = 2
[pid 21152] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21152] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21152] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21152] exit_group(0)               = ?
[pid 21152] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21152, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21153 attached
, child_tidptr=0x555555af35d0) = 21153
[pid 21153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21153] setpgid(0, 0)               = 0
[pid 21153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21153] write(3, "1000", 4)         = 4
[pid 21153] close(3)                    = 0
[pid 21153] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21153] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21153] write(4, "78", 2)           = 2
[pid 21153] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21153] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21153] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21153] exit_group(0)               = ?
[pid 21153] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21153, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21154
./strace-static-x86_64: Process 21154 attached
[pid 21154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21154] setpgid(0, 0)               = 0
[pid 21154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21154] write(3, "1000", 4)         = 4
[pid 21154] close(3)                    = 0
[pid 21154] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21154] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21154] write(4, "78", 2)           = 2
[pid 21154] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21154] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21154] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21154] exit_group(0)               = ?
[pid 21154] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21154, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21155
./strace-static-x86_64: Process 21155 attached
[pid 21155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21155] setpgid(0, 0)               = 0
[pid 21155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21155] write(3, "1000", 4)         = 4
[pid 21155] close(3)                    = 0
[pid 21155] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21155] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21155] write(4, "78", 2)           = 2
[pid 21155] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21155] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21155] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21155] exit_group(0)               = ?
[pid 21155] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21155, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21156 attached
, child_tidptr=0x555555af35d0) = 21156
[pid 21156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21156] setpgid(0, 0)               = 0
[pid 21156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21156] write(3, "1000", 4)         = 4
[pid 21156] close(3)                    = 0
[pid 21156] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21156] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21156] write(4, "78", 2)           = 2
[pid 21156] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21156] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21156] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21156] exit_group(0)               = ?
[pid 21156] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21156, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21157 attached
, child_tidptr=0x555555af35d0) = 21157
[pid 21157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21157] setpgid(0, 0)               = 0
[pid 21157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21157] write(3, "1000", 4)         = 4
[pid 21157] close(3)                    = 0
[pid 21157] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21157] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21157] write(4, "78", 2)           = 2
[pid 21157] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21157] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21157] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21157] exit_group(0)               = ?
[pid 21157] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21157, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21158 attached
, child_tidptr=0x555555af35d0) = 21158
[pid 21158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21158] setpgid(0, 0)               = 0
[pid 21158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21158] write(3, "1000", 4)         = 4
[pid 21158] close(3)                    = 0
[pid 21158] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21158] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21158] write(4, "78", 2)           = 2
[pid 21158] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21158] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21158] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21158] exit_group(0)               = ?
[pid 21158] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21158, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21159 attached
, child_tidptr=0x555555af35d0) = 21159
[pid 21159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21159] setpgid(0, 0)               = 0
[pid 21159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21159] write(3, "1000", 4)         = 4
[pid 21159] close(3)                    = 0
[pid 21159] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21159] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21159] write(4, "78", 2)           = 2
[pid 21159] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21159] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21159] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21159] exit_group(0)               = ?
[pid 21159] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21159, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21160 attached
, child_tidptr=0x555555af35d0) = 21160
[pid 21160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21160] setpgid(0, 0)               = 0
[pid 21160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21160] write(3, "1000", 4)         = 4
[pid 21160] close(3)                    = 0
[pid 21160] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21160] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21160] write(4, "78", 2)           = 2
[pid 21160] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21160] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21160] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21160] exit_group(0)               = ?
[pid 21160] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21160, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21161 attached
, child_tidptr=0x555555af35d0) = 21161
[pid 21161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21161] setpgid(0, 0)               = 0
[pid 21161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21161] write(3, "1000", 4)         = 4
[pid 21161] close(3)                    = 0
[pid 21161] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21161] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21161] write(4, "78", 2)           = 2
[pid 21161] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21161] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21161] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21161] exit_group(0)               = ?
[pid 21161] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21161, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21162 attached
, child_tidptr=0x555555af35d0) = 21162
[pid 21162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21162] setpgid(0, 0)               = 0
[pid 21162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21162] write(3, "1000", 4)         = 4
[pid 21162] close(3)                    = 0
[pid 21162] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21162] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21162] write(4, "78", 2)           = 2
[pid 21162] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21162] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21162] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21162] exit_group(0)               = ?
[pid 21162] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21162, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21163 attached
, child_tidptr=0x555555af35d0) = 21163
[pid 21163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21163] setpgid(0, 0)               = 0
[pid 21163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21163] write(3, "1000", 4)         = 4
[pid 21163] close(3)                    = 0
[pid 21163] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21163] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21163] write(4, "78", 2)           = 2
[pid 21163] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21163] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21163] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21163] exit_group(0)               = ?
[pid 21163] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21163, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21164 attached
, child_tidptr=0x555555af35d0) = 21164
[pid 21164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21164] setpgid(0, 0)               = 0
[pid 21164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21164] write(3, "1000", 4)         = 4
[pid 21164] close(3)                    = 0
[pid 21164] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21164] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21164] write(4, "78", 2)           = 2
[pid 21164] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21164] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21164] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21164] exit_group(0)               = ?
[pid 21164] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21164, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21165 attached
, child_tidptr=0x555555af35d0) = 21165
[pid 21165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21165] setpgid(0, 0)               = 0
[pid 21165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21165] write(3, "1000", 4)         = 4
[pid 21165] close(3)                    = 0
[pid 21165] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21165] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21165] write(4, "78", 2)           = 2
[pid 21165] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21165] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21165] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21165] exit_group(0)               = ?
[pid 21165] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21165, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21166 attached
, child_tidptr=0x555555af35d0) = 21166
[pid 21166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21166] setpgid(0, 0)               = 0
[pid 21166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21166] write(3, "1000", 4)         = 4
[pid 21166] close(3)                    = 0
[pid 21166] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21166] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21166] write(4, "78", 2)           = 2
[pid 21166] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21166] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21166] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21166] exit_group(0)               = ?
[pid 21166] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21166, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21167 attached
, child_tidptr=0x555555af35d0) = 21167
[pid 21167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21167] setpgid(0, 0)               = 0
[pid 21167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21167] write(3, "1000", 4)         = 4
[pid 21167] close(3)                    = 0
[pid 21167] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21167] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21167] write(4, "78", 2)           = 2
[pid 21167] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21167] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21167] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21167] exit_group(0)               = ?
[pid 21167] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21167, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21168 attached
, child_tidptr=0x555555af35d0) = 21168
[pid 21168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21168] setpgid(0, 0)               = 0
[pid 21168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21168] write(3, "1000", 4)         = 4
[pid 21168] close(3)                    = 0
[pid 21168] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21168] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21168] write(4, "78", 2)           = 2
[pid 21168] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21168] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21168] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21168] exit_group(0)               = ?
[pid 21168] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21168, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21169
./strace-static-x86_64: Process 21169 attached
[pid 21169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21169] setpgid(0, 0)               = 0
[pid 21169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21169] write(3, "1000", 4)         = 4
[pid 21169] close(3)                    = 0
[pid 21169] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21169] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21169] write(4, "78", 2)           = 2
[pid 21169] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21169] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21169] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21169] exit_group(0)               = ?
[pid 21169] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21169, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21170
./strace-static-x86_64: Process 21170 attached
[pid 21170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21170] setpgid(0, 0)               = 0
[pid 21170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21170] write(3, "1000", 4)         = 4
[pid 21170] close(3)                    = 0
[pid 21170] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21170] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21170] write(4, "78", 2)           = 2
[pid 21170] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21170] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21170] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21170] exit_group(0)               = ?
[pid 21170] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21170, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21171 attached
, child_tidptr=0x555555af35d0) = 21171
[pid 21171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21171] setpgid(0, 0)               = 0
[pid 21171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21171] write(3, "1000", 4)         = 4
[pid 21171] close(3)                    = 0
[pid 21171] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21171] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21171] write(4, "78", 2)           = 2
[pid 21171] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21171] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21171] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21171] exit_group(0)               = ?
[pid 21171] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21171, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21172
./strace-static-x86_64: Process 21172 attached
[pid 21172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21172] setpgid(0, 0)               = 0
[pid 21172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21172] write(3, "1000", 4)         = 4
[pid 21172] close(3)                    = 0
[pid 21172] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21172] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21172] write(4, "78", 2)           = 2
[pid 21172] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21172] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21172] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21172] exit_group(0)               = ?
[pid 21172] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21172, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21173 attached
, child_tidptr=0x555555af35d0) = 21173
[pid 21173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21173] setpgid(0, 0)               = 0
[pid 21173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21173] write(3, "1000", 4)         = 4
[pid 21173] close(3)                    = 0
[pid 21173] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21173] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21173] write(4, "78", 2)           = 2
[pid 21173] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21173] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21173] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21173] exit_group(0)               = ?
[pid 21173] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21173, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21174 attached
, child_tidptr=0x555555af35d0) = 21174
[pid 21174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21174] setpgid(0, 0)               = 0
[pid 21174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21174] write(3, "1000", 4)         = 4
[pid 21174] close(3)                    = 0
[pid 21174] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21174] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21174] write(4, "78", 2)           = 2
[pid 21174] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21174] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21174] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21174] exit_group(0)               = ?
[pid 21174] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21174, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21175 attached
, child_tidptr=0x555555af35d0) = 21175
[pid 21175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21175] setpgid(0, 0)               = 0
[pid 21175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21175] write(3, "1000", 4)         = 4
[pid 21175] close(3)                    = 0
[pid 21175] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21175] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21175] write(4, "78", 2)           = 2
[pid 21175] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21175] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21175] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21175] exit_group(0)               = ?
[pid 21175] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21175, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21176 attached
, child_tidptr=0x555555af35d0) = 21176
[pid 21176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21176] setpgid(0, 0)               = 0
[pid 21176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21176] write(3, "1000", 4)         = 4
[pid 21176] close(3)                    = 0
[pid 21176] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21176] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21176] write(4, "78", 2)           = 2
[pid 21176] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21176] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21176] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21176] exit_group(0)               = ?
[pid 21176] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21176, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21177 attached
, child_tidptr=0x555555af35d0) = 21177
[pid 21177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21177] setpgid(0, 0)               = 0
[pid 21177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21177] write(3, "1000", 4)         = 4
[pid 21177] close(3)                    = 0
[pid 21177] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21177] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21177] write(4, "78", 2)           = 2
[pid 21177] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21177] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21177] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21177] exit_group(0)               = ?
[pid 21177] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21177, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21178
./strace-static-x86_64: Process 21178 attached
[pid 21178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21178] setpgid(0, 0)               = 0
[pid 21178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21178] write(3, "1000", 4)         = 4
[pid 21178] close(3)                    = 0
[pid 21178] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21178] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21178] write(4, "78", 2)           = 2
[pid 21178] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21178] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21178] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21178] exit_group(0)               = ?
[pid 21178] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21178, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21179 attached
, child_tidptr=0x555555af35d0) = 21179
[pid 21179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21179] setpgid(0, 0)               = 0
[pid 21179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21179] write(3, "1000", 4)         = 4
[pid 21179] close(3)                    = 0
[pid 21179] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21179] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21179] write(4, "78", 2)           = 2
[pid 21179] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21179] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21179] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21179] exit_group(0)               = ?
[pid 21179] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21179, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21180 attached
, child_tidptr=0x555555af35d0) = 21180
[pid 21180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21180] setpgid(0, 0)               = 0
[pid 21180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21180] write(3, "1000", 4)         = 4
[pid 21180] close(3)                    = 0
[pid 21180] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21180] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21180] write(4, "78", 2)           = 2
[pid 21180] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21180] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21180] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21180] exit_group(0)               = ?
[pid 21180] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21180, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21181 attached
, child_tidptr=0x555555af35d0) = 21181
[pid 21181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21181] setpgid(0, 0)               = 0
[pid 21181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21181] write(3, "1000", 4)         = 4
[pid 21181] close(3)                    = 0
[pid 21181] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21181] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21181] write(4, "78", 2)           = 2
[pid 21181] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21181] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21181] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21181] exit_group(0)               = ?
[pid 21181] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21181, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21182 attached
, child_tidptr=0x555555af35d0) = 21182
[pid 21182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21182] setpgid(0, 0)               = 0
[pid 21182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21182] write(3, "1000", 4)         = 4
[pid 21182] close(3)                    = 0
[pid 21182] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21182] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21182] write(4, "78", 2)           = 2
[pid 21182] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21182] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21182] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21182] exit_group(0)               = ?
[pid 21182] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21182, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21183 attached
 <unfinished ...>
[pid 21183] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 21183
[pid 21183] <... prctl resumed>)        = 0
[pid 21183] setpgid(0, 0)               = 0
[pid 21183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21183] write(3, "1000", 4)         = 4
[pid 21183] close(3)                    = 0
[pid 21183] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21183] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21183] write(4, "78", 2)           = 2
[pid 21183] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21183] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21183] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21183] exit_group(0)               = ?
[pid 21183] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21183, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21184 attached
, child_tidptr=0x555555af35d0) = 21184
[pid 21184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21184] setpgid(0, 0)               = 0
[pid 21184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21184] write(3, "1000", 4)         = 4
[pid 21184] close(3)                    = 0
[pid 21184] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21184] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21184] write(4, "78", 2)           = 2
[pid 21184] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21184] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21184] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21184] exit_group(0)               = ?
[pid 21184] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21184, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21185 attached
, child_tidptr=0x555555af35d0) = 21185
[pid 21185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21185] setpgid(0, 0)               = 0
[pid 21185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21185] write(3, "1000", 4)         = 4
[pid 21185] close(3)                    = 0
[pid 21185] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21185] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21185] write(4, "78", 2)           = 2
[pid 21185] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21185] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21185] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 21185] exit_group(0)               = ?
[pid 21185] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21185, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21186
./strace-static-x86_64: Process 21186 attached
[pid 21186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21186] setpgid(0, 0)               = 0
[pid 21186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21186] write(3, "1000", 4)         = 4
[pid 21186] close(3)                    = 0
[pid 21186] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21186] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21186] write(4, "78", 2)           = 2
[pid 21186] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 21186] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21186] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21186] exit_group(0)               = ?
[pid 21186] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21186, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21187 attached
, child_tidptr=0x555555af35d0) = 21187
[pid 21187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21187] setpgid(0, 0)               = 0
[pid 21187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21187] write(3, "1000", 4)         = 4
[pid 21187] close(3)                    = 0
[pid 21187] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21187] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21187] write(4, "78", 2)           = 2
[pid 21187] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21187] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21187] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21187] exit_group(0)               = ?
[pid 21187] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21187, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21188 attached
, child_tidptr=0x555555af35d0) = 21188
[pid 21188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21188] setpgid(0, 0)               = 0
[pid 21188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21188] write(3, "1000", 4)         = 4
[pid 21188] close(3)                    = 0
[pid 21188] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21188] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21188] write(4, "78", 2)           = 2
[pid 21188] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21188] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21188] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21188] exit_group(0)               = ?
[pid 21188] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21188, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21189 attached
, child_tidptr=0x555555af35d0) = 21189
[pid 21189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21189] setpgid(0, 0)               = 0
[pid 21189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21189] write(3, "1000", 4)         = 4
[pid 21189] close(3)                    = 0
[pid 21189] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21189] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21189] write(4, "78", 2)           = 2
[pid 21189] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21189] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21189] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21189] exit_group(0)               = ?
[pid 21189] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21189, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21190 attached
, child_tidptr=0x555555af35d0) = 21190
[pid 21190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21190] setpgid(0, 0)               = 0
[pid 21190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21190] write(3, "1000", 4)         = 4
[pid 21190] close(3)                    = 0
[pid 21190] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21190] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21190] write(4, "78", 2)           = 2
[pid 21190] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21190] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21190] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21190] exit_group(0)               = ?
[pid 21190] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21190, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21191
./strace-static-x86_64: Process 21191 attached
[pid 21191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21191] setpgid(0, 0)               = 0
[pid 21191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21191] write(3, "1000", 4)         = 4
[pid 21191] close(3)                    = 0
[pid 21191] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21191] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21191] write(4, "78", 2)           = 2
[pid 21191] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21191] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21191] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21191] exit_group(0)               = ?
[pid 21191] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21191, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21192 attached
, child_tidptr=0x555555af35d0) = 21192
[pid 21192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21192] setpgid(0, 0)               = 0
[pid 21192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21192] write(3, "1000", 4)         = 4
[pid 21192] close(3)                    = 0
[pid 21192] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21192] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21192] write(4, "78", 2)           = 2
[pid 21192] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21192] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21192] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21192] exit_group(0)               = ?
[pid 21192] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21192, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21193 attached
, child_tidptr=0x555555af35d0) = 21193
[pid 21193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21193] setpgid(0, 0)               = 0
[pid 21193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21193] write(3, "1000", 4)         = 4
[pid 21193] close(3)                    = 0
[pid 21193] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21193] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21193] write(4, "78", 2)           = 2
[pid 21193] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21193] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21193] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21193] exit_group(0)               = ?
[pid 21193] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21193, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21194
./strace-static-x86_64: Process 21194 attached
[pid 21194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21194] setpgid(0, 0)               = 0
[pid 21194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21194] write(3, "1000", 4)         = 4
[pid 21194] close(3)                    = 0
[pid 21194] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21194] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21194] write(4, "78", 2)           = 2
[pid 21194] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21194] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21194] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21194] exit_group(0)               = ?
[pid 21194] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21194, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21195 attached
, child_tidptr=0x555555af35d0) = 21195
[pid 21195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21195] setpgid(0, 0)               = 0
[pid 21195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21195] write(3, "1000", 4)         = 4
[pid 21195] close(3)                    = 0
[pid 21195] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21195] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21195] write(4, "78", 2)           = 2
[pid 21195] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21195] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21195] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21195] exit_group(0)               = ?
[pid 21195] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21195, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21196 attached
, child_tidptr=0x555555af35d0) = 21196
[pid 21196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21196] setpgid(0, 0)               = 0
[pid 21196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21196] write(3, "1000", 4)         = 4
[pid 21196] close(3)                    = 0
[pid 21196] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21196] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21196] write(4, "78", 2)           = 2
[pid 21196] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21196] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21196] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21196] exit_group(0)               = ?
[pid 21196] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21196, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21197 attached
, child_tidptr=0x555555af35d0) = 21197
[pid 21197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21197] setpgid(0, 0)               = 0
[pid 21197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21197] write(3, "1000", 4)         = 4
[pid 21197] close(3)                    = 0
[pid 21197] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21197] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21197] write(4, "78", 2)           = 2
[pid 21197] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21197] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21197] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21197] exit_group(0)               = ?
[pid 21197] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21197, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21198 attached
, child_tidptr=0x555555af35d0) = 21198
[pid 21198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21198] setpgid(0, 0)               = 0
[pid 21198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21198] write(3, "1000", 4)         = 4
[pid 21198] close(3)                    = 0
[pid 21198] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21198] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21198] write(4, "78", 2)           = 2
[pid 21198] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21198] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21198] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21198] exit_group(0)               = ?
[pid 21198] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21198, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21199
./strace-static-x86_64: Process 21199 attached
[pid 21199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21199] setpgid(0, 0)               = 0
[pid 21199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21199] write(3, "1000", 4)         = 4
[pid 21199] close(3)                    = 0
[pid 21199] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21199] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21199] write(4, "78", 2)           = 2
[pid 21199] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21199] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21199] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21199] exit_group(0)               = ?
[pid 21199] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21199, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21200
./strace-static-x86_64: Process 21200 attached
[pid 21200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21200] setpgid(0, 0)               = 0
[pid 21200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21200] write(3, "1000", 4)         = 4
[pid 21200] close(3)                    = 0
[pid 21200] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21200] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21200] write(4, "78", 2)           = 2
[pid 21200] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21200] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21200] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21200] exit_group(0)               = ?
[pid 21200] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21200, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21201 attached
, child_tidptr=0x555555af35d0) = 21201
[pid 21201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21201] setpgid(0, 0)               = 0
[pid 21201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21201] write(3, "1000", 4)         = 4
[pid 21201] close(3)                    = 0
[pid 21201] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21201] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21201] write(4, "78", 2)           = 2
[pid 21201] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21201] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21201] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21201] exit_group(0)               = ?
[pid 21201] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21201, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21202 attached
, child_tidptr=0x555555af35d0) = 21202
[pid 21202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21202] setpgid(0, 0)               = 0
[pid 21202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21202] write(3, "1000", 4)         = 4
[pid 21202] close(3)                    = 0
[pid 21202] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21202] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21202] write(4, "78", 2)           = 2
[pid 21202] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21202] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21202] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21202] exit_group(0)               = ?
[pid 21202] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21202, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21203 attached
, child_tidptr=0x555555af35d0) = 21203
[pid 21203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21203] setpgid(0, 0)               = 0
[pid 21203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21203] write(3, "1000", 4)         = 4
[pid 21203] close(3)                    = 0
[pid 21203] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21203] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21203] write(4, "78", 2)           = 2
[pid 21203] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21203] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21203] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21203] exit_group(0)               = ?
[pid 21203] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21203, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21204 attached
, child_tidptr=0x555555af35d0) = 21204
[pid 21204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21204] setpgid(0, 0)               = 0
[pid 21204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21204] write(3, "1000", 4)         = 4
[pid 21204] close(3)                    = 0
[pid 21204] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21204] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21204] write(4, "78", 2)           = 2
[pid 21204] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21204] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21204] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21204] exit_group(0)               = ?
[pid 21204] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21204, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21205 attached
, child_tidptr=0x555555af35d0) = 21205
[pid 21205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21205] setpgid(0, 0)               = 0
[pid 21205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21205] write(3, "1000", 4)         = 4
[pid 21205] close(3)                    = 0
[pid 21205] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21205] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21205] write(4, "78", 2)           = 2
[pid 21205] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21205] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21205] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21205] exit_group(0)               = ?
[pid 21205] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21205, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21206
./strace-static-x86_64: Process 21206 attached
[pid 21206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21206] setpgid(0, 0)               = 0
[pid 21206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21206] write(3, "1000", 4)         = 4
[pid 21206] close(3)                    = 0
[pid 21206] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21206] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21206] write(4, "78", 2)           = 2
[pid 21206] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21206] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21206] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21206] exit_group(0)               = ?
[pid 21206] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21206, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21207 attached
, child_tidptr=0x555555af35d0) = 21207
[pid 21207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21207] setpgid(0, 0)               = 0
[pid 21207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21207] write(3, "1000", 4)         = 4
[pid 21207] close(3)                    = 0
[pid 21207] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21207] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21207] write(4, "78", 2)           = 2
[pid 21207] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21207] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21207] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21207] exit_group(0)               = ?
[pid 21207] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21207, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21208
./strace-static-x86_64: Process 21208 attached
[pid 21208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21208] setpgid(0, 0)               = 0
[pid 21208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21208] write(3, "1000", 4)         = 4
[pid 21208] close(3)                    = 0
[pid 21208] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21208] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21208] write(4, "78", 2)           = 2
[pid 21208] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21208] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21208] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21208] exit_group(0)               = ?
[pid 21208] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21208, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21209
./strace-static-x86_64: Process 21209 attached
[pid 21209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21209] setpgid(0, 0)               = 0
[pid 21209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21209] write(3, "1000", 4)         = 4
[pid 21209] close(3)                    = 0
[pid 21209] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21209] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21209] write(4, "78", 2)           = 2
[pid 21209] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21209] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21209] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21209] exit_group(0)               = ?
[pid 21209] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21209, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21210 attached
, child_tidptr=0x555555af35d0) = 21210
[pid 21210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21210] setpgid(0, 0)               = 0
[pid 21210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21210] write(3, "1000", 4)         = 4
[pid 21210] close(3)                    = 0
[pid 21210] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21210] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21210] write(4, "78", 2)           = 2
[pid 21210] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21210] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21210] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21210] exit_group(0)               = ?
[pid 21210] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21210, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21211
./strace-static-x86_64: Process 21211 attached
[pid 21211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21211] setpgid(0, 0)               = 0
[pid 21211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21211] write(3, "1000", 4)         = 4
[pid 21211] close(3)                    = 0
[pid 21211] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21211] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21211] write(4, "78", 2)           = 2
[pid 21211] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21211] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21211] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21211] exit_group(0)               = ?
[pid 21211] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21211, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21212 attached
, child_tidptr=0x555555af35d0) = 21212
[pid 21212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21212] setpgid(0, 0)               = 0
[pid 21212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21212] write(3, "1000", 4)         = 4
[pid 21212] close(3)                    = 0
[pid 21212] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21212] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21212] write(4, "78", 2)           = 2
[pid 21212] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21212] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21212] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21212] exit_group(0)               = ?
[pid 21212] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21212, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21213 attached
, child_tidptr=0x555555af35d0) = 21213
[pid 21213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21213] setpgid(0, 0)               = 0
[pid 21213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21213] write(3, "1000", 4)         = 4
[pid 21213] close(3)                    = 0
[pid 21213] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21213] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21213] write(4, "78", 2)           = 2
[pid 21213] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21213] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21213] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21213] exit_group(0)               = ?
[pid 21213] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21213, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21214 attached
, child_tidptr=0x555555af35d0) = 21214
[pid 21214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21214] setpgid(0, 0)               = 0
[pid 21214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21214] write(3, "1000", 4)         = 4
[pid 21214] close(3)                    = 0
[pid 21214] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21214] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21214] write(4, "78", 2)           = 2
[pid 21214] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21214] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21214] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21214] exit_group(0)               = ?
[pid 21214] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21214, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21215
./strace-static-x86_64: Process 21215 attached
[pid 21215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21215] setpgid(0, 0)               = 0
[pid 21215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21215] write(3, "1000", 4)         = 4
[pid 21215] close(3)                    = 0
[pid 21215] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21215] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21215] write(4, "78", 2)           = 2
[pid 21215] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21215] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21215] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21215] exit_group(0)               = ?
[pid 21215] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21215, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21216 attached
, child_tidptr=0x555555af35d0) = 21216
[pid 21216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21216] setpgid(0, 0)               = 0
[pid 21216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21216] write(3, "1000", 4)         = 4
[pid 21216] close(3)                    = 0
[pid 21216] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21216] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21216] write(4, "78", 2)           = 2
[pid 21216] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21216] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21216] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21216] exit_group(0)               = ?
[pid 21216] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21216, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21217 attached
, child_tidptr=0x555555af35d0) = 21217
[pid 21217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21217] setpgid(0, 0)               = 0
[pid 21217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21217] write(3, "1000", 4)         = 4
[pid 21217] close(3)                    = 0
[pid 21217] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21217] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21217] write(4, "78", 2)           = 2
[pid 21217] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21217] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21217] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21217] exit_group(0)               = ?
[pid 21217] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21217, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21218 attached
, child_tidptr=0x555555af35d0) = 21218
[pid 21218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21218] setpgid(0, 0)               = 0
[pid 21218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21218] write(3, "1000", 4)         = 4
[pid 21218] close(3)                    = 0
[pid 21218] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21218] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21218] write(4, "78", 2)           = 2
[pid 21218] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21218] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21218] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 21218] exit_group(0)               = ?
[pid 21218] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21218, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21219
./strace-static-x86_64: Process 21219 attached
[pid 21219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21219] setpgid(0, 0)               = 0
[pid 21219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21219] write(3, "1000", 4)         = 4
[pid 21219] close(3)                    = 0
[pid 21219] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21219] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21219] write(4, "78", 2)           = 2
[pid 21219] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 21219] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21219] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21219] exit_group(0)               = ?
[pid 21219] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21219, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21220 attached
, child_tidptr=0x555555af35d0) = 21220
[pid 21220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21220] setpgid(0, 0)               = 0
[pid 21220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21220] write(3, "1000", 4)         = 4
[pid 21220] close(3)                    = 0
[pid 21220] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21220] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21220] write(4, "78", 2)           = 2
[pid 21220] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21220] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21220] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21220] exit_group(0)               = ?
[pid 21220] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21220, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21221 attached
, child_tidptr=0x555555af35d0) = 21221
[pid 21221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21221] setpgid(0, 0)               = 0
[pid 21221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21221] write(3, "1000", 4)         = 4
[pid 21221] close(3)                    = 0
[pid 21221] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21221] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21221] write(4, "78", 2)           = 2
[pid 21221] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21221] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21221] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21221] exit_group(0)               = ?
[pid 21221] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21221, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21222 attached
, child_tidptr=0x555555af35d0) = 21222
[pid 21222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21222] setpgid(0, 0)               = 0
[pid 21222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21222] write(3, "1000", 4)         = 4
[pid 21222] close(3)                    = 0
[pid 21222] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21222] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21222] write(4, "78", 2)           = 2
[pid 21222] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21222] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21222] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21222] exit_group(0)               = ?
[pid 21222] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21222, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21223 attached
, child_tidptr=0x555555af35d0) = 21223
[pid 21223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21223] setpgid(0, 0)               = 0
[pid 21223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21223] write(3, "1000", 4)         = 4
[pid 21223] close(3)                    = 0
[pid 21223] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21223] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21223] write(4, "78", 2)           = 2
[pid 21223] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21223] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21223] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21223] exit_group(0)               = ?
[pid 21223] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21223, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21224 attached
, child_tidptr=0x555555af35d0) = 21224
[pid 21224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21224] setpgid(0, 0)               = 0
[pid 21224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21224] write(3, "1000", 4)         = 4
[pid 21224] close(3)                    = 0
[pid 21224] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21224] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21224] write(4, "78", 2)           = 2
[pid 21224] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21224] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21224] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21224] exit_group(0)               = ?
[pid 21224] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21224, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21225 attached
, child_tidptr=0x555555af35d0) = 21225
[pid 21225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21225] setpgid(0, 0)               = 0
[pid 21225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21225] write(3, "1000", 4)         = 4
[pid 21225] close(3)                    = 0
[pid 21225] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21225] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21225] write(4, "78", 2)           = 2
[pid 21225] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21225] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21225] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21225] exit_group(0)               = ?
[pid 21225] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21225, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21226
./strace-static-x86_64: Process 21226 attached
[pid 21226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21226] setpgid(0, 0)               = 0
[pid 21226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21226] write(3, "1000", 4)         = 4
[pid 21226] close(3)                    = 0
[pid 21226] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21226] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21226] write(4, "78", 2)           = 2
[pid 21226] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21226] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21226] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21226] exit_group(0)               = ?
[pid 21226] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21226, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21227 attached
, child_tidptr=0x555555af35d0) = 21227
[pid 21227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21227] setpgid(0, 0)               = 0
[pid 21227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21227] write(3, "1000", 4)         = 4
[pid 21227] close(3)                    = 0
[pid 21227] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21227] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21227] write(4, "78", 2)           = 2
[pid 21227] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21227] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21227] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21227] exit_group(0)               = ?
[pid 21227] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21227, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21228 attached
, child_tidptr=0x555555af35d0) = 21228
[pid 21228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21228] setpgid(0, 0)               = 0
[pid 21228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21228] write(3, "1000", 4)         = 4
[pid 21228] close(3)                    = 0
[pid 21228] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21228] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21228] write(4, "78", 2)           = 2
[pid 21228] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21228] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21228] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21228] exit_group(0)               = ?
[pid 21228] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21228, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21229
./strace-static-x86_64: Process 21229 attached
[pid 21229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21229] setpgid(0, 0)               = 0
[pid 21229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21229] write(3, "1000", 4)         = 4
[pid 21229] close(3)                    = 0
[pid 21229] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21229] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21229] write(4, "78", 2)           = 2
[pid 21229] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21229] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21229] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21229] exit_group(0)               = ?
[pid 21229] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21229, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21230
./strace-static-x86_64: Process 21230 attached
[pid 21230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21230] setpgid(0, 0)               = 0
[pid 21230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21230] write(3, "1000", 4)         = 4
[pid 21230] close(3)                    = 0
[pid 21230] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21230] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21230] write(4, "78", 2)           = 2
[pid 21230] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21230] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21230] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21230] exit_group(0)               = ?
[pid 21230] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21230, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21231 attached
, child_tidptr=0x555555af35d0) = 21231
[pid 21231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21231] setpgid(0, 0)               = 0
[pid 21231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21231] write(3, "1000", 4)         = 4
[pid 21231] close(3)                    = 0
[pid 21231] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21231] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21231] write(4, "78", 2)           = 2
[pid 21231] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21231] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21231] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21231] exit_group(0)               = ?
[pid 21231] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21231, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21232 attached
, child_tidptr=0x555555af35d0) = 21232
[pid 21232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21232] setpgid(0, 0)               = 0
[pid 21232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21232] write(3, "1000", 4)         = 4
[pid 21232] close(3)                    = 0
[pid 21232] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21232] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21232] write(4, "78", 2)           = 2
[pid 21232] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21232] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21232] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21232] exit_group(0)               = ?
[pid 21232] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21232, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21233 attached
, child_tidptr=0x555555af35d0) = 21233
[pid 21233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21233] setpgid(0, 0)               = 0
[pid 21233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21233] write(3, "1000", 4)         = 4
[pid 21233] close(3)                    = 0
[pid 21233] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21233] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21233] write(4, "78", 2)           = 2
[pid 21233] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21233] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21233] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21233] exit_group(0)               = ?
[pid 21233] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21233, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21234 attached
, child_tidptr=0x555555af35d0) = 21234
[pid 21234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21234] setpgid(0, 0)               = 0
[pid 21234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21234] write(3, "1000", 4)         = 4
[pid 21234] close(3)                    = 0
[pid 21234] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21234] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21234] write(4, "78", 2)           = 2
[pid 21234] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21234] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21234] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21234] exit_group(0)               = ?
[pid 21234] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21234, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21235 attached
, child_tidptr=0x555555af35d0) = 21235
[pid 21235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21235] setpgid(0, 0)               = 0
[pid 21235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21235] write(3, "1000", 4)         = 4
[pid 21235] close(3)                    = 0
[pid 21235] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21235] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21235] write(4, "78", 2)           = 2
[pid 21235] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21235] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21235] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21235] exit_group(0)               = ?
[pid 21235] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21235, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21236 attached
, child_tidptr=0x555555af35d0) = 21236
[pid 21236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21236] setpgid(0, 0)               = 0
[pid 21236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21236] write(3, "1000", 4)         = 4
[pid 21236] close(3)                    = 0
[pid 21236] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21236] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21236] write(4, "78", 2)           = 2
[pid 21236] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21236] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21236] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21236] exit_group(0)               = ?
[pid 21236] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21236, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21237 attached
, child_tidptr=0x555555af35d0) = 21237
[pid 21237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21237] setpgid(0, 0)               = 0
[pid 21237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21237] write(3, "1000", 4)         = 4
[pid 21237] close(3)                    = 0
[pid 21237] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21237] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21237] write(4, "78", 2)           = 2
[pid 21237] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21237] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21237] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21237] exit_group(0)               = ?
[pid 21237] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21237, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21238 attached
, child_tidptr=0x555555af35d0) = 21238
[pid 21238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21238] setpgid(0, 0)               = 0
[pid 21238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21238] write(3, "1000", 4)         = 4
[pid 21238] close(3)                    = 0
[pid 21238] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21238] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21238] write(4, "78", 2)           = 2
[pid 21238] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21238] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21238] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21238] exit_group(0)               = ?
[pid 21238] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21238, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21239 attached
, child_tidptr=0x555555af35d0) = 21239
[pid 21239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21239] setpgid(0, 0)               = 0
[pid 21239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21239] write(3, "1000", 4)         = 4
[pid 21239] close(3)                    = 0
[pid 21239] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21239] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21239] write(4, "78", 2)           = 2
[pid 21239] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21239] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21239] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21239] exit_group(0)               = ?
[pid 21239] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21239, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21240 attached
, child_tidptr=0x555555af35d0) = 21240
[pid 21240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21240] setpgid(0, 0)               = 0
[pid 21240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21240] write(3, "1000", 4)         = 4
[pid 21240] close(3)                    = 0
[pid 21240] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21240] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21240] write(4, "78", 2)           = 2
[pid 21240] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21240] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21240] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21240] exit_group(0)               = ?
[pid 21240] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21240, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21241 attached
, child_tidptr=0x555555af35d0) = 21241
[pid 21241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21241] setpgid(0, 0)               = 0
[pid 21241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21241] write(3, "1000", 4)         = 4
[pid 21241] close(3)                    = 0
[pid 21241] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21241] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21241] write(4, "78", 2)           = 2
[pid 21241] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21241] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21241] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21241] exit_group(0)               = ?
[pid 21241] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21241, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21242 attached
, child_tidptr=0x555555af35d0) = 21242
[pid 21242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21242] setpgid(0, 0)               = 0
[pid 21242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21242] write(3, "1000", 4)         = 4
[pid 21242] close(3)                    = 0
[pid 21242] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21242] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21242] write(4, "78", 2)           = 2
[pid 21242] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21242] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21242] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21242] exit_group(0)               = ?
[pid 21242] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21242, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21243 attached
, child_tidptr=0x555555af35d0) = 21243
[pid 21243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21243] setpgid(0, 0)               = 0
[pid 21243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21243] write(3, "1000", 4)         = 4
[pid 21243] close(3)                    = 0
[pid 21243] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21243] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21243] write(4, "78", 2)           = 2
[pid 21243] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21243] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21243] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21243] exit_group(0)               = ?
[pid 21243] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21243, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21244
./strace-static-x86_64: Process 21244 attached
[pid 21244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21244] setpgid(0, 0)               = 0
[pid 21244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21244] write(3, "1000", 4)         = 4
[pid 21244] close(3)                    = 0
[pid 21244] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21244] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21244] write(4, "78", 2)           = 2
[pid 21244] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21244] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21244] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21244] exit_group(0)               = ?
[pid 21244] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21244, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21245 attached
, child_tidptr=0x555555af35d0) = 21245
[pid 21245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21245] setpgid(0, 0)               = 0
[pid 21245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21245] write(3, "1000", 4)         = 4
[pid 21245] close(3)                    = 0
[pid 21245] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21245] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21245] write(4, "78", 2)           = 2
[pid 21245] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21245] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21245] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21245] exit_group(0)               = ?
[pid 21245] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21245, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21246
./strace-static-x86_64: Process 21246 attached
[pid 21246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21246] setpgid(0, 0)               = 0
[pid 21246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21246] write(3, "1000", 4)         = 4
[pid 21246] close(3)                    = 0
[pid 21246] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21246] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21246] write(4, "78", 2)           = 2
[pid 21246] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21246] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21246] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21246] exit_group(0)               = ?
[pid 21246] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21246, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21247 attached
, child_tidptr=0x555555af35d0) = 21247
[pid 21247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21247] setpgid(0, 0)               = 0
[pid 21247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21247] write(3, "1000", 4)         = 4
[pid 21247] close(3)                    = 0
[pid 21247] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21247] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21247] write(4, "78", 2)           = 2
[pid 21247] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21247] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21247] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21247] exit_group(0)               = ?
[pid 21247] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21247, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21248 attached
, child_tidptr=0x555555af35d0) = 21248
[pid 21248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21248] setpgid(0, 0)               = 0
[pid 21248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21248] write(3, "1000", 4)         = 4
[pid 21248] close(3)                    = 0
[pid 21248] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21248] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21248] write(4, "78", 2)           = 2
[pid 21248] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21248] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21248] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21248] exit_group(0)               = ?
[pid 21248] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21248, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21249
./strace-static-x86_64: Process 21249 attached
[pid 21249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21249] setpgid(0, 0)               = 0
[pid 21249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21249] write(3, "1000", 4)         = 4
[pid 21249] close(3)                    = 0
[pid 21249] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21249] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21249] write(4, "78", 2)           = 2
[pid 21249] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21249] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21249] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21249] exit_group(0)               = ?
[pid 21249] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21249, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21250 attached
, child_tidptr=0x555555af35d0) = 21250
[pid 21250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21250] setpgid(0, 0)               = 0
[pid 21250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21250] write(3, "1000", 4)         = 4
[pid 21250] close(3)                    = 0
[pid 21250] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21250] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21250] write(4, "78", 2)           = 2
[pid 21250] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21250] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21250] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21250] exit_group(0)               = ?
[pid 21250] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21250, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21251 attached
, child_tidptr=0x555555af35d0) = 21251
[pid 21251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21251] setpgid(0, 0)               = 0
[pid 21251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21251] write(3, "1000", 4)         = 4
[pid 21251] close(3)                    = 0
[pid 21251] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21251] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21251] write(4, "78", 2)           = 2
[pid 21251] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21251] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21251] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21251] exit_group(0)               = ?
[pid 21251] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21251, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21252
./strace-static-x86_64: Process 21252 attached
[pid 21252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21252] setpgid(0, 0)               = 0
[pid 21252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21252] write(3, "1000", 4)         = 4
[pid 21252] close(3)                    = 0
[pid 21252] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21252] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21252] write(4, "78", 2)           = 2
[pid 21252] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21252] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21252] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21252] exit_group(0)               = ?
[pid 21252] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21252, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21253 attached
, child_tidptr=0x555555af35d0) = 21253
[pid 21253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21253] setpgid(0, 0)               = 0
[pid 21253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21253] write(3, "1000", 4)         = 4
[pid 21253] close(3)                    = 0
[pid 21253] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21253] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21253] write(4, "78", 2)           = 2
[pid 21253] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21253] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21253] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21253] exit_group(0)               = ?
[pid 21253] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21253, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21254 attached
, child_tidptr=0x555555af35d0) = 21254
[pid 21254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21254] setpgid(0, 0)               = 0
[pid 21254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21254] write(3, "1000", 4)         = 4
[pid 21254] close(3)                    = 0
[pid 21254] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21254] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21254] write(4, "78", 2)           = 2
[pid 21254] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21254] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21254] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21254] exit_group(0)               = ?
[pid 21254] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21254, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21255 attached
, child_tidptr=0x555555af35d0) = 21255
[pid 21255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21255] setpgid(0, 0)               = 0
[pid 21255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21255] write(3, "1000", 4)         = 4
[pid 21255] close(3)                    = 0
[pid 21255] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21255] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21255] write(4, "78", 2)           = 2
[pid 21255] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21255] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21255] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21255] exit_group(0)               = ?
[pid 21255] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21255, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21256
./strace-static-x86_64: Process 21256 attached
[pid 21256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21256] setpgid(0, 0)               = 0
[pid 21256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21256] write(3, "1000", 4)         = 4
[pid 21256] close(3)                    = 0
[pid 21256] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21256] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21256] write(4, "78", 2)           = 2
[pid 21256] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21256] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21256] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21256] exit_group(0)               = ?
[pid 21256] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21256, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21257
./strace-static-x86_64: Process 21257 attached
[pid 21257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21257] setpgid(0, 0)               = 0
[pid 21257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21257] write(3, "1000", 4)         = 4
[pid 21257] close(3)                    = 0
[pid 21257] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21257] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21257] write(4, "78", 2)           = 2
[pid 21257] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21257] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21257] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21257] exit_group(0)               = ?
[pid 21257] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21257, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21258 attached
, child_tidptr=0x555555af35d0) = 21258
[pid 21258] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21258] setpgid(0, 0)               = 0
[pid 21258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21258] write(3, "1000", 4)         = 4
[pid 21258] close(3)                    = 0
[pid 21258] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21258] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21258] write(4, "78", 2)           = 2
[pid 21258] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21258] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21258] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21258] exit_group(0)               = ?
[pid 21258] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21258, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21259
./strace-static-x86_64: Process 21259 attached
[pid 21259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21259] setpgid(0, 0)               = 0
[pid 21259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21259] write(3, "1000", 4)         = 4
[pid 21259] close(3)                    = 0
[pid 21259] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21259] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21259] write(4, "78", 2)           = 2
[pid 21259] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21259] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21259] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21259] exit_group(0)               = ?
[pid 21259] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21259, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21260 attached
, child_tidptr=0x555555af35d0) = 21260
[pid 21260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21260] setpgid(0, 0)               = 0
[pid 21260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21260] write(3, "1000", 4)         = 4
[pid 21260] close(3)                    = 0
[pid 21260] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21260] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21260] write(4, "78", 2)           = 2
[pid 21260] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21260] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21260] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21260] exit_group(0)               = ?
[pid 21260] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21260, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21261 attached
, child_tidptr=0x555555af35d0) = 21261
[pid 21261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21261] setpgid(0, 0)               = 0
[pid 21261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21261] write(3, "1000", 4)         = 4
[pid 21261] close(3)                    = 0
[pid 21261] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21261] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21261] write(4, "78", 2)           = 2
[pid 21261] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21261] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21261] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 21261] exit_group(0)               = ?
[pid 21261] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21261, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21262 attached
, child_tidptr=0x555555af35d0) = 21262
[pid 21262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21262] setpgid(0, 0)               = 0
[pid 21262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21262] write(3, "1000", 4)         = 4
[pid 21262] close(3)                    = 0
[pid 21262] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21262] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21262] write(4, "78", 2)           = 2
[pid 21262] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 21262] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21262] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21262] exit_group(0)               = ?
[pid 21262] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21262, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21263 attached
, child_tidptr=0x555555af35d0) = 21263
[pid 21263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21263] setpgid(0, 0)               = 0
[pid 21263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21263] write(3, "1000", 4)         = 4
[pid 21263] close(3)                    = 0
[pid 21263] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21263] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21263] write(4, "78", 2)           = 2
[pid 21263] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21263] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21263] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21263] exit_group(0)               = ?
[pid 21263] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21263, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21264 attached
, child_tidptr=0x555555af35d0) = 21264
[pid 21264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21264] setpgid(0, 0)               = 0
[pid 21264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21264] write(3, "1000", 4)         = 4
[pid 21264] close(3)                    = 0
[pid 21264] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21264] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21264] write(4, "78", 2)           = 2
[pid 21264] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21264] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21264] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21264] exit_group(0)               = ?
[pid 21264] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21264, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21265
./strace-static-x86_64: Process 21265 attached
[pid 21265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21265] setpgid(0, 0)               = 0
[pid 21265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21265] write(3, "1000", 4)         = 4
[pid 21265] close(3)                    = 0
[pid 21265] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21265] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21265] write(4, "78", 2)           = 2
[pid 21265] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21265] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21265] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21265] exit_group(0)               = ?
[pid 21265] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21265, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21266 attached
, child_tidptr=0x555555af35d0) = 21266
[pid 21266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21266] setpgid(0, 0)               = 0
[pid 21266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21266] write(3, "1000", 4)         = 4
[pid 21266] close(3)                    = 0
[pid 21266] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21266] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21266] write(4, "78", 2)           = 2
[pid 21266] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21266] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21266] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21266] exit_group(0)               = ?
[pid 21266] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21266, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21267 attached
, child_tidptr=0x555555af35d0) = 21267
[pid 21267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21267] setpgid(0, 0)               = 0
[pid 21267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21267] write(3, "1000", 4)         = 4
[pid 21267] close(3)                    = 0
[pid 21267] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21267] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21267] write(4, "78", 2)           = 2
[pid 21267] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21267] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21267] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21267] exit_group(0)               = ?
[pid 21267] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21267, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21268 attached
, child_tidptr=0x555555af35d0) = 21268
[pid 21268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21268] setpgid(0, 0)               = 0
[pid 21268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21268] write(3, "1000", 4)         = 4
[pid 21268] close(3)                    = 0
[pid 21268] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21268] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21268] write(4, "78", 2)           = 2
[pid 21268] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21268] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21268] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21268] exit_group(0)               = ?
[pid 21268] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21268, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21269
./strace-static-x86_64: Process 21269 attached
[pid 21269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21269] setpgid(0, 0)               = 0
[pid 21269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21269] write(3, "1000", 4)         = 4
[pid 21269] close(3)                    = 0
[pid 21269] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21269] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21269] write(4, "78", 2)           = 2
[pid 21269] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21269] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21269] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21269] exit_group(0)               = ?
[pid 21269] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21269, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21270 attached
, child_tidptr=0x555555af35d0) = 21270
[pid 21270] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21270] setpgid(0, 0)               = 0
[pid 21270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21270] write(3, "1000", 4)         = 4
[pid 21270] close(3)                    = 0
[pid 21270] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21270] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21270] write(4, "78", 2)           = 2
[pid 21270] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21270] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21270] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21270] exit_group(0)               = ?
[pid 21270] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21270, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21271 attached
, child_tidptr=0x555555af35d0) = 21271
[pid 21271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21271] setpgid(0, 0)               = 0
[pid 21271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21271] write(3, "1000", 4)         = 4
[pid 21271] close(3)                    = 0
[pid 21271] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21271] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21271] write(4, "78", 2)           = 2
[pid 21271] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21271] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21271] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21271] exit_group(0)               = ?
[pid 21271] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21271, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21272 attached
, child_tidptr=0x555555af35d0) = 21272
[pid 21272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21272] setpgid(0, 0)               = 0
[pid 21272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21272] write(3, "1000", 4)         = 4
[pid 21272] close(3)                    = 0
[pid 21272] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21272] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21272] write(4, "78", 2)           = 2
[pid 21272] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21272] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21272] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21272] exit_group(0)               = ?
[pid 21272] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21272, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21273 attached
, child_tidptr=0x555555af35d0) = 21273
[pid 21273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21273] setpgid(0, 0)               = 0
[pid 21273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21273] write(3, "1000", 4)         = 4
[pid 21273] close(3)                    = 0
[pid 21273] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21273] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21273] write(4, "78", 2)           = 2
[pid 21273] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21273] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21273] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21273] exit_group(0)               = ?
[pid 21273] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21273, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21274
./strace-static-x86_64: Process 21274 attached
[pid 21274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21274] setpgid(0, 0)               = 0
[pid 21274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21274] write(3, "1000", 4)         = 4
[pid 21274] close(3)                    = 0
[pid 21274] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21274] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21274] write(4, "78", 2)           = 2
[pid 21274] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21274] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21274] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21274] exit_group(0)               = ?
[pid 21274] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21274, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21275 attached
, child_tidptr=0x555555af35d0) = 21275
[pid 21275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21275] setpgid(0, 0)               = 0
[pid 21275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21275] write(3, "1000", 4)         = 4
[pid 21275] close(3)                    = 0
[pid 21275] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21275] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21275] write(4, "78", 2)           = 2
[pid 21275] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21275] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21275] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21275] exit_group(0)               = ?
[pid 21275] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21275, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21276 attached
, child_tidptr=0x555555af35d0) = 21276
[pid 21276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21276] setpgid(0, 0)               = 0
[pid 21276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21276] write(3, "1000", 4)         = 4
[pid 21276] close(3)                    = 0
[pid 21276] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21276] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21276] write(4, "78", 2)           = 2
[pid 21276] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21276] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21276] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21276] exit_group(0)               = ?
[pid 21276] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21276, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21277 attached
, child_tidptr=0x555555af35d0) = 21277
[pid 21277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21277] setpgid(0, 0)               = 0
[pid 21277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21277] write(3, "1000", 4)         = 4
[pid 21277] close(3)                    = 0
[pid 21277] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21277] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21277] write(4, "78", 2)           = 2
[pid 21277] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21277] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21277] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21277] exit_group(0)               = ?
[pid 21277] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21277, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21278 attached
, child_tidptr=0x555555af35d0) = 21278
[pid 21278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21278] setpgid(0, 0)               = 0
[pid 21278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21278] write(3, "1000", 4)         = 4
[pid 21278] close(3)                    = 0
[pid 21278] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21278] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21278] write(4, "78", 2)           = 2
[pid 21278] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21278] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21278] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21278] exit_group(0)               = ?
[pid 21278] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21278, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21279 attached
, child_tidptr=0x555555af35d0) = 21279
[pid 21279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21279] setpgid(0, 0)               = 0
[pid 21279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21279] write(3, "1000", 4)         = 4
[pid 21279] close(3)                    = 0
[pid 21279] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21279] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21279] write(4, "78", 2)           = 2
[pid 21279] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21279] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21279] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21279] exit_group(0)               = ?
[pid 21279] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21279, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21280 attached
, child_tidptr=0x555555af35d0) = 21280
[pid 21280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21280] setpgid(0, 0)               = 0
[pid 21280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21280] write(3, "1000", 4)         = 4
[pid 21280] close(3)                    = 0
[pid 21280] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21280] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21280] write(4, "78", 2)           = 2
[pid 21280] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21280] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21280] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21280] exit_group(0)               = ?
[pid 21280] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21280, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21281 attached
, child_tidptr=0x555555af35d0) = 21281
[pid 21281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21281] setpgid(0, 0)               = 0
[pid 21281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21281] write(3, "1000", 4)         = 4
[pid 21281] close(3)                    = 0
[pid 21281] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21281] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21281] write(4, "78", 2)           = 2
[pid 21281] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21281] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21281] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21281] exit_group(0)               = ?
[pid 21281] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21281, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21282 attached
, child_tidptr=0x555555af35d0) = 21282
[pid 21282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21282] setpgid(0, 0)               = 0
[pid 21282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21282] write(3, "1000", 4)         = 4
[pid 21282] close(3)                    = 0
[pid 21282] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21282] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21282] write(4, "78", 2)           = 2
[pid 21282] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21282] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21282] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21282] exit_group(0)               = ?
[pid 21282] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21282, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21283 attached
, child_tidptr=0x555555af35d0) = 21283
[pid 21283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21283] setpgid(0, 0)               = 0
[pid 21283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21283] write(3, "1000", 4)         = 4
[pid 21283] close(3)                    = 0
[pid 21283] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21283] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21283] write(4, "78", 2)           = 2
[pid 21283] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21283] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21283] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21283] exit_group(0)               = ?
[pid 21283] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21283, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21284
./strace-static-x86_64: Process 21284 attached
[pid 21284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21284] setpgid(0, 0)               = 0
[pid 21284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21284] write(3, "1000", 4)         = 4
[pid 21284] close(3)                    = 0
[pid 21284] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21284] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21284] write(4, "78", 2)           = 2
[pid 21284] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21284] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21284] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21284] exit_group(0)               = ?
[pid 21284] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21284, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21285
./strace-static-x86_64: Process 21285 attached
[pid 21285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21285] setpgid(0, 0)               = 0
[pid 21285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21285] write(3, "1000", 4)         = 4
[pid 21285] close(3)                    = 0
[pid 21285] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21285] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21285] write(4, "78", 2)           = 2
[pid 21285] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21285] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21285] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21285] exit_group(0)               = ?
[pid 21285] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21285, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21286 attached
, child_tidptr=0x555555af35d0) = 21286
[pid 21286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21286] setpgid(0, 0)               = 0
[pid 21286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21286] write(3, "1000", 4)         = 4
[pid 21286] close(3)                    = 0
[pid 21286] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21286] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21286] write(4, "78", 2)           = 2
[pid 21286] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21286] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21286] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21286] exit_group(0)               = ?
[pid 21286] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21286, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21287 attached
, child_tidptr=0x555555af35d0) = 21287
[pid 21287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21287] setpgid(0, 0)               = 0
[pid 21287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21287] write(3, "1000", 4)         = 4
[pid 21287] close(3)                    = 0
[pid 21287] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21287] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21287] write(4, "78", 2)           = 2
[pid 21287] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21287] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21287] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21287] exit_group(0)               = ?
[pid 21287] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21287, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21288 attached
, child_tidptr=0x555555af35d0) = 21288
[pid 21288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21288] setpgid(0, 0)               = 0
[pid 21288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21288] write(3, "1000", 4)         = 4
[pid 21288] close(3)                    = 0
[pid 21288] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21288] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21288] write(4, "78", 2)           = 2
[pid 21288] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21288] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21288] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21288] exit_group(0)               = ?
[pid 21288] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21288, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21289 attached
, child_tidptr=0x555555af35d0) = 21289
[pid 21289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21289] setpgid(0, 0)               = 0
[pid 21289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21289] write(3, "1000", 4)         = 4
[pid 21289] close(3)                    = 0
[pid 21289] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21289] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21289] write(4, "78", 2)           = 2
[pid 21289] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21289] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21289] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21289] exit_group(0)               = ?
[pid 21289] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21289, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21290 attached
, child_tidptr=0x555555af35d0) = 21290
[pid 21290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21290] setpgid(0, 0)               = 0
[pid 21290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21290] write(3, "1000", 4)         = 4
[pid 21290] close(3)                    = 0
[pid 21290] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21290] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21290] write(4, "78", 2)           = 2
[pid 21290] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21290] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21290] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21290] exit_group(0)               = ?
[pid 21290] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21290, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21291 attached
, child_tidptr=0x555555af35d0) = 21291
[pid 21291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21291] setpgid(0, 0)               = 0
[pid 21291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21291] write(3, "1000", 4)         = 4
[pid 21291] close(3)                    = 0
[pid 21291] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21291] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21291] write(4, "78", 2)           = 2
[pid 21291] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21291] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21291] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21291] exit_group(0)               = ?
[pid 21291] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21291, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21292 attached
, child_tidptr=0x555555af35d0) = 21292
[pid 21292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21292] setpgid(0, 0)               = 0
[pid 21292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21292] write(3, "1000", 4)         = 4
[pid 21292] close(3)                    = 0
[pid 21292] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21292] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21292] write(4, "78", 2)           = 2
[pid 21292] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21292] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21292] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21292] exit_group(0)               = ?
[pid 21292] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21292, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21293 attached
, child_tidptr=0x555555af35d0) = 21293
[pid 21293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21293] setpgid(0, 0)               = 0
[pid 21293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21293] write(3, "1000", 4)         = 4
[pid 21293] close(3)                    = 0
[pid 21293] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21293] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21293] write(4, "78", 2)           = 2
[pid 21293] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21293] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21293] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21293] exit_group(0)               = ?
[pid 21293] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21293, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21294 attached
, child_tidptr=0x555555af35d0) = 21294
[pid 21294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21294] setpgid(0, 0)               = 0
[pid 21294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21294] write(3, "1000", 4)         = 4
[pid 21294] close(3)                    = 0
[pid 21294] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21294] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21294] write(4, "78", 2)           = 2
[pid 21294] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21294] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21294] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21294] exit_group(0)               = ?
[pid 21294] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21294, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21295
./strace-static-x86_64: Process 21295 attached
[pid 21295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21295] setpgid(0, 0)               = 0
[pid 21295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21295] write(3, "1000", 4)         = 4
[pid 21295] close(3)                    = 0
[pid 21295] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21295] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21295] write(4, "78", 2)           = 2
[pid 21295] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21295] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21295] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21295] exit_group(0)               = ?
[pid 21295] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21295, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21296
./strace-static-x86_64: Process 21296 attached
[pid 21296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21296] setpgid(0, 0)               = 0
[pid 21296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21296] write(3, "1000", 4)         = 4
[pid 21296] close(3)                    = 0
[pid 21296] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21296] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21296] write(4, "78", 2)           = 2
[pid 21296] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21296] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21296] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21296] exit_group(0)               = ?
[pid 21296] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21296, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21297 attached
, child_tidptr=0x555555af35d0) = 21297
[pid 21297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21297] setpgid(0, 0)               = 0
[pid 21297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21297] write(3, "1000", 4)         = 4
[pid 21297] close(3)                    = 0
[pid 21297] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21297] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21297] write(4, "78", 2)           = 2
[pid 21297] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21297] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21297] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21297] exit_group(0)               = ?
[pid 21297] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21297, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21298 attached
, child_tidptr=0x555555af35d0) = 21298
[pid 21298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21298] setpgid(0, 0)               = 0
[pid 21298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21298] write(3, "1000", 4)         = 4
[pid 21298] close(3)                    = 0
[pid 21298] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21298] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21298] write(4, "78", 2)           = 2
[pid 21298] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21298] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21298] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21298] exit_group(0)               = ?
[pid 21298] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21298, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21299 attached
, child_tidptr=0x555555af35d0) = 21299
[pid 21299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21299] setpgid(0, 0)               = 0
[pid 21299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21299] write(3, "1000", 4)         = 4
[pid 21299] close(3)                    = 0
[pid 21299] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21299] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21299] write(4, "78", 2)           = 2
[pid 21299] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21299] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21299] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21299] exit_group(0)               = ?
[pid 21299] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21299, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21300 attached
, child_tidptr=0x555555af35d0) = 21300
[pid 21300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21300] setpgid(0, 0)               = 0
[pid 21300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21300] write(3, "1000", 4)         = 4
[pid 21300] close(3)                    = 0
[pid 21300] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21300] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21300] write(4, "78", 2)           = 2
[pid 21300] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21300] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21300] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21300] exit_group(0)               = ?
[pid 21300] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21300, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21301
./strace-static-x86_64: Process 21301 attached
[pid 21301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21301] setpgid(0, 0)               = 0
[pid 21301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21301] write(3, "1000", 4)         = 4
[pid 21301] close(3)                    = 0
[pid 21301] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21301] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21301] write(4, "78", 2)           = 2
[pid 21301] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21301] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21301] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21301] exit_group(0)               = ?
[pid 21301] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21301, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21302
./strace-static-x86_64: Process 21302 attached
[pid 21302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21302] setpgid(0, 0)               = 0
[pid 21302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21302] write(3, "1000", 4)         = 4
[pid 21302] close(3)                    = 0
[pid 21302] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21302] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21302] write(4, "78", 2)           = 2
[pid 21302] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21302] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21302] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21302] exit_group(0)               = ?
[pid 21302] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21302, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21303
./strace-static-x86_64: Process 21303 attached
[pid 21303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21303] setpgid(0, 0)               = 0
[pid 21303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21303] write(3, "1000", 4)         = 4
[pid 21303] close(3)                    = 0
[pid 21303] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21303] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21303] write(4, "78", 2)           = 2
[pid 21303] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21303] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21303] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21303] exit_group(0)               = ?
[pid 21303] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21303, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21304 attached
, child_tidptr=0x555555af35d0) = 21304
[pid 21304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21304] setpgid(0, 0)               = 0
[pid 21304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21304] write(3, "1000", 4)         = 4
[pid 21304] close(3)                    = 0
[pid 21304] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21304] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21304] write(4, "78", 2)           = 2
[pid 21304] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21304] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21304] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21304] exit_group(0)               = ?
[pid 21304] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21304, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21305
./strace-static-x86_64: Process 21305 attached
[pid 21305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21305] setpgid(0, 0)               = 0
[pid 21305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21305] write(3, "1000", 4)         = 4
[pid 21305] close(3)                    = 0
[pid 21305] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21305] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21305] write(4, "78", 2)           = 2
[pid 21305] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21305] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21305] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21305] exit_group(0)               = ?
[pid 21305] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21305, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21306
./strace-static-x86_64: Process 21306 attached
[pid 21306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21306] setpgid(0, 0)               = 0
[pid 21306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21306] write(3, "1000", 4)         = 4
[pid 21306] close(3)                    = 0
[pid 21306] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21306] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21306] write(4, "78", 2)           = 2
[pid 21306] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21306] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21306] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21306] exit_group(0)               = ?
[pid 21306] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21306, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21307
./strace-static-x86_64: Process 21307 attached
[pid 21307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21307] setpgid(0, 0)               = 0
[pid 21307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21307] write(3, "1000", 4)         = 4
[pid 21307] close(3)                    = 0
[pid 21307] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21307] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21307] write(4, "78", 2)           = 2
[pid 21307] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21307] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21307] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21307] exit_group(0)               = ?
[pid 21307] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21307, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21308
./strace-static-x86_64: Process 21308 attached
[pid 21308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21308] setpgid(0, 0)               = 0
[pid 21308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21308] write(3, "1000", 4)         = 4
[pid 21308] close(3)                    = 0
[pid 21308] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21308] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21308] write(4, "78", 2)           = 2
[pid 21308] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21308] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21308] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21308] exit_group(0)               = ?
[pid 21308] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21308, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21309 attached
, child_tidptr=0x555555af35d0) = 21309
[pid 21309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21309] setpgid(0, 0)               = 0
[pid 21309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21309] write(3, "1000", 4)         = 4
[pid 21309] close(3)                    = 0
[pid 21309] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21309] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21309] write(4, "78", 2)           = 2
[pid 21309] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21309] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21309] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21309] exit_group(0)               = ?
[pid 21309] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21309, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21310 attached
, child_tidptr=0x555555af35d0) = 21310
[pid 21310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21310] setpgid(0, 0)               = 0
[pid 21310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21310] write(3, "1000", 4)         = 4
[pid 21310] close(3)                    = 0
[pid 21310] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21310] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21310] write(4, "78", 2)           = 2
[pid 21310] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21310] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21310] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21310] exit_group(0)               = ?
[pid 21310] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21310, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21311 attached
, child_tidptr=0x555555af35d0) = 21311
[pid 21311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21311] setpgid(0, 0)               = 0
[pid 21311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21311] write(3, "1000", 4)         = 4
[pid 21311] close(3)                    = 0
[pid 21311] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21311] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21311] write(4, "78", 2)           = 2
[pid 21311] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21311] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21311] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21311] exit_group(0)               = ?
[pid 21311] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21311, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21312 attached
, child_tidptr=0x555555af35d0) = 21312
[pid 21312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21312] setpgid(0, 0)               = 0
[pid 21312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21312] write(3, "1000", 4)         = 4
[pid 21312] close(3)                    = 0
[pid 21312] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21312] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21312] write(4, "78", 2)           = 2
[pid 21312] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21312] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21312] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21312] exit_group(0)               = ?
[pid 21312] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21312, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21313 attached
, child_tidptr=0x555555af35d0) = 21313
[pid 21313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21313] setpgid(0, 0)               = 0
[pid 21313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21313] write(3, "1000", 4)         = 4
[pid 21313] close(3)                    = 0
[pid 21313] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21313] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21313] write(4, "78", 2)           = 2
[pid 21313] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21313] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21313] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21313] exit_group(0)               = ?
[pid 21313] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21313, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21314 attached
, child_tidptr=0x555555af35d0) = 21314
[pid 21314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21314] setpgid(0, 0)               = 0
[pid 21314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21314] write(3, "1000", 4)         = 4
[pid 21314] close(3)                    = 0
[pid 21314] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21314] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21314] write(4, "78", 2)           = 2
[pid 21314] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21314] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21314] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21314] exit_group(0)               = ?
[pid 21314] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21314, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21315 attached
, child_tidptr=0x555555af35d0) = 21315
[pid 21315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21315] setpgid(0, 0)               = 0
[pid 21315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21315] write(3, "1000", 4)         = 4
[pid 21315] close(3)                    = 0
[pid 21315] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21315] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21315] write(4, "78", 2)           = 2
[pid 21315] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21315] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21315] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21315] exit_group(0)               = ?
[pid 21315] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21315, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21316
./strace-static-x86_64: Process 21316 attached
[pid 21316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21316] setpgid(0, 0)               = 0
[pid 21316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21316] write(3, "1000", 4)         = 4
[pid 21316] close(3)                    = 0
[pid 21316] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21316] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21316] write(4, "78", 2)           = 2
[pid 21316] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21316] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21316] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21316] exit_group(0)               = ?
[pid 21316] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21316, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21317 attached
, child_tidptr=0x555555af35d0) = 21317
[pid 21317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21317] setpgid(0, 0)               = 0
[pid 21317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21317] write(3, "1000", 4)         = 4
[pid 21317] close(3)                    = 0
[pid 21317] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21317] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21317] write(4, "78", 2)           = 2
[pid 21317] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21317] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21317] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21317] exit_group(0)               = ?
[pid 21317] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21317, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21318 attached
, child_tidptr=0x555555af35d0) = 21318
[pid 21318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21318] setpgid(0, 0)               = 0
[pid 21318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21318] write(3, "1000", 4)         = 4
[pid 21318] close(3)                    = 0
[pid 21318] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21318] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21318] write(4, "78", 2)           = 2
[pid 21318] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21318] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21318] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21318] exit_group(0)               = ?
[pid 21318] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21318, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21319 attached
, child_tidptr=0x555555af35d0) = 21319
[pid 21319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21319] setpgid(0, 0)               = 0
[pid 21319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21319] write(3, "1000", 4)         = 4
[pid 21319] close(3)                    = 0
[pid 21319] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21319] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21319] write(4, "78", 2)           = 2
[pid 21319] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21319] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21319] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21319] exit_group(0)               = ?
[pid 21319] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21319, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21320
./strace-static-x86_64: Process 21320 attached
[pid 21320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21320] setpgid(0, 0)               = 0
[pid 21320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21320] write(3, "1000", 4)         = 4
[pid 21320] close(3)                    = 0
[pid 21320] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21320] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21320] write(4, "78", 2)           = 2
[pid 21320] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21320] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21320] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21320] exit_group(0)               = ?
[pid 21320] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21320, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21321 attached
, child_tidptr=0x555555af35d0) = 21321
[pid 21321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21321] setpgid(0, 0)               = 0
[pid 21321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21321] write(3, "1000", 4)         = 4
[pid 21321] close(3)                    = 0
[pid 21321] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21321] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21321] write(4, "78", 2)           = 2
[pid 21321] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21321] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21321] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21321] exit_group(0)               = ?
[pid 21321] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21321, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21322
./strace-static-x86_64: Process 21322 attached
[pid 21322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21322] setpgid(0, 0)               = 0
[pid 21322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21322] write(3, "1000", 4)         = 4
[pid 21322] close(3)                    = 0
[pid 21322] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21322] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21322] write(4, "78", 2)           = 2
[pid 21322] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21322] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21322] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21322] exit_group(0)               = ?
[pid 21322] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21322, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21323
./strace-static-x86_64: Process 21323 attached
[pid 21323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21323] setpgid(0, 0)               = 0
[pid 21323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21323] write(3, "1000", 4)         = 4
[pid 21323] close(3)                    = 0
[pid 21323] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21323] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21323] write(4, "78", 2)           = 2
[pid 21323] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21323] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21323] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21323] exit_group(0)               = ?
[pid 21323] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21323, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21324
./strace-static-x86_64: Process 21324 attached
[pid 21324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21324] setpgid(0, 0)               = 0
[pid 21324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21324] write(3, "1000", 4)         = 4
[pid 21324] close(3)                    = 0
[pid 21324] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21324] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21324] write(4, "78", 2)           = 2
[pid 21324] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21324] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21324] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21324] exit_group(0)               = ?
[pid 21324] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21324, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21325 attached
, child_tidptr=0x555555af35d0) = 21325
[pid 21325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21325] setpgid(0, 0)               = 0
[pid 21325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21325] write(3, "1000", 4)         = 4
[pid 21325] close(3)                    = 0
[pid 21325] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21325] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21325] write(4, "78", 2)           = 2
[pid 21325] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21325] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21325] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21325] exit_group(0)               = ?
[pid 21325] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21325, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21326 attached
, child_tidptr=0x555555af35d0) = 21326
[pid 21326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21326] setpgid(0, 0)               = 0
[pid 21326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21326] write(3, "1000", 4)         = 4
[pid 21326] close(3)                    = 0
[pid 21326] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21326] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21326] write(4, "78", 2)           = 2
[pid 21326] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21326] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21326] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21326] exit_group(0)               = ?
[pid 21326] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21326, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21327 attached
, child_tidptr=0x555555af35d0) = 21327
[pid 21327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21327] setpgid(0, 0)               = 0
[pid 21327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21327] write(3, "1000", 4)         = 4
[pid 21327] close(3)                    = 0
[pid 21327] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21327] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21327] write(4, "78", 2)           = 2
[pid 21327] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21327] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21327] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21327] exit_group(0)               = ?
[pid 21327] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21327, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21329
./strace-static-x86_64: Process 21329 attached
[pid 21329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21329] setpgid(0, 0)               = 0
[pid 21329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21329] write(3, "1000", 4)         = 4
[pid 21329] close(3)                    = 0
[pid 21329] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21329] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21329] write(4, "78", 2)           = 2
[pid 21329] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21329] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21329] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21329] exit_group(0)               = ?
[pid 21329] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21329, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21330
./strace-static-x86_64: Process 21330 attached
[pid 21330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21330] setpgid(0, 0)               = 0
[pid 21330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21330] write(3, "1000", 4)         = 4
[pid 21330] close(3)                    = 0
[pid 21330] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21330] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21330] write(4, "78", 2)           = 2
[pid 21330] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21330] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21330] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21330] exit_group(0)               = ?
[pid 21330] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21330, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21331 attached
, child_tidptr=0x555555af35d0) = 21331
[pid 21331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21331] setpgid(0, 0)               = 0
[pid 21331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21331] write(3, "1000", 4)         = 4
[pid 21331] close(3)                    = 0
[pid 21331] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21331] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21331] write(4, "78", 2)           = 2
[pid 21331] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21331] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21331] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21331] exit_group(0)               = ?
[pid 21331] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21331, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21332 attached
, child_tidptr=0x555555af35d0) = 21332
[pid 21332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21332] setpgid(0, 0)               = 0
[pid 21332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21332] write(3, "1000", 4)         = 4
[pid 21332] close(3)                    = 0
[pid 21332] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21332] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21332] write(4, "78", 2)           = 2
[pid 21332] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21332] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21332] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21332] exit_group(0)               = ?
[pid 21332] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21332, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21333
./strace-static-x86_64: Process 21333 attached
[pid 21333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21333] setpgid(0, 0)               = 0
[pid 21333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21333] write(3, "1000", 4)         = 4
[pid 21333] close(3)                    = 0
[pid 21333] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21333] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21333] write(4, "78", 2)           = 2
[pid 21333] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21333] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21333] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21333] exit_group(0)               = ?
[pid 21333] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21333, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21334
./strace-static-x86_64: Process 21334 attached
[pid 21334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21334] setpgid(0, 0)               = 0
[pid 21334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21334] write(3, "1000", 4)         = 4
[pid 21334] close(3)                    = 0
[pid 21334] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21334] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21334] write(4, "78", 2)           = 2
[pid 21334] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21334] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21334] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21334] exit_group(0)               = ?
[pid 21334] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21334, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21335
./strace-static-x86_64: Process 21335 attached
[pid 21335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21335] setpgid(0, 0)               = 0
[pid 21335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21335] write(3, "1000", 4)         = 4
[pid 21335] close(3)                    = 0
[pid 21335] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21335] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21335] write(4, "78", 2)           = 2
[pid 21335] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21335] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21335] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21335] exit_group(0)               = ?
[pid 21335] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21335, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21336 attached
, child_tidptr=0x555555af35d0) = 21336
[pid 21336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21336] setpgid(0, 0)               = 0
[pid 21336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21336] write(3, "1000", 4)         = 4
[pid 21336] close(3)                    = 0
[pid 21336] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21336] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21336] write(4, "78", 2)           = 2
[pid 21336] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21336] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21336] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21336] exit_group(0)               = ?
[pid 21336] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21336, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21337 attached
, child_tidptr=0x555555af35d0) = 21337
[pid 21337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21337] setpgid(0, 0)               = 0
[pid 21337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21337] write(3, "1000", 4)         = 4
[pid 21337] close(3)                    = 0
[pid 21337] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21337] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21337] write(4, "78", 2)           = 2
[pid 21337] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21337] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21337] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21337] exit_group(0)               = ?
[pid 21337] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21337, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21338 attached
, child_tidptr=0x555555af35d0) = 21338
[pid 21338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21338] setpgid(0, 0)               = 0
[pid 21338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21338] write(3, "1000", 4)         = 4
[pid 21338] close(3)                    = 0
[pid 21338] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21338] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21338] write(4, "78", 2)           = 2
[pid 21338] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21338] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21338] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21338] exit_group(0)               = ?
[pid 21338] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21338, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21339 attached
, child_tidptr=0x555555af35d0) = 21339
[pid 21339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21339] setpgid(0, 0)               = 0
[pid 21339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21339] write(3, "1000", 4)         = 4
[pid 21339] close(3)                    = 0
[pid 21339] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21339] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21339] write(4, "78", 2)           = 2
[pid 21339] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21339] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21339] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21339] exit_group(0)               = ?
[pid 21339] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21339, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21340
./strace-static-x86_64: Process 21340 attached
[pid 21340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21340] setpgid(0, 0)               = 0
[pid 21340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21340] write(3, "1000", 4)         = 4
[pid 21340] close(3)                    = 0
[pid 21340] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21340] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21340] write(4, "78", 2)           = 2
[pid 21340] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21340] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21340] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21340] exit_group(0)               = ?
[pid 21340] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21340, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21341 attached
, child_tidptr=0x555555af35d0) = 21341
[pid 21341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21341] setpgid(0, 0)               = 0
[pid 21341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21341] write(3, "1000", 4)         = 4
[pid 21341] close(3)                    = 0
[pid 21341] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21341] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21341] write(4, "78", 2)           = 2
[pid 21341] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21341] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21341] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21341] exit_group(0)               = ?
[pid 21341] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21341, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21342 attached
, child_tidptr=0x555555af35d0) = 21342
[pid 21342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21342] setpgid(0, 0)               = 0
[pid 21342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21342] write(3, "1000", 4)         = 4
[pid 21342] close(3)                    = 0
[pid 21342] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21342] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21342] write(4, "78", 2)           = 2
[pid 21342] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21342] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21342] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21342] exit_group(0)               = ?
[pid 21342] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21342, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21343 attached
, child_tidptr=0x555555af35d0) = 21343
[pid 21343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21343] setpgid(0, 0)               = 0
[pid 21343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21343] write(3, "1000", 4)         = 4
[pid 21343] close(3)                    = 0
[pid 21343] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21343] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21343] write(4, "78", 2)           = 2
[pid 21343] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21343] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21343] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21343] exit_group(0)               = ?
[pid 21343] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21343, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21344 attached
, child_tidptr=0x555555af35d0) = 21344
[pid 21344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21344] setpgid(0, 0)               = 0
[pid 21344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21344] write(3, "1000", 4)         = 4
[pid 21344] close(3)                    = 0
[pid 21344] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21344] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21344] write(4, "78", 2)           = 2
[pid 21344] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21344] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21344] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21344] exit_group(0)               = ?
[pid 21344] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21344, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21345 attached
, child_tidptr=0x555555af35d0) = 21345
[pid 21345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21345] setpgid(0, 0)               = 0
[pid 21345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21345] write(3, "1000", 4)         = 4
[pid 21345] close(3)                    = 0
[pid 21345] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21345] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21345] write(4, "78", 2)           = 2
[pid 21345] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21345] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21345] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21345] exit_group(0)               = ?
[pid 21345] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21345, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21346 attached
, child_tidptr=0x555555af35d0) = 21346
[pid 21346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21346] setpgid(0, 0)               = 0
[pid 21346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21346] write(3, "1000", 4)         = 4
[pid 21346] close(3)                    = 0
[pid 21346] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21346] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21346] write(4, "78", 2)           = 2
[pid 21346] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21346] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21346] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21346] exit_group(0)               = ?
[pid 21346] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21346, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21347 attached
 <unfinished ...>
[pid 21347] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 21347
[pid 21347] <... prctl resumed>)        = 0
[pid 21347] setpgid(0, 0)               = 0
[pid 21347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21347] write(3, "1000", 4)         = 4
[pid 21347] close(3)                    = 0
[pid 21347] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21347] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21347] write(4, "78", 2)           = 2
[pid 21347] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21347] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21347] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21347] exit_group(0)               = ?
[pid 21347] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21347, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21348
./strace-static-x86_64: Process 21348 attached
[pid 21348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21348] setpgid(0, 0)               = 0
[pid 21348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21348] write(3, "1000", 4)         = 4
[pid 21348] close(3)                    = 0
[pid 21348] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21348] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21348] write(4, "78", 2)           = 2
[pid 21348] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21348] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21348] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21348] exit_group(0)               = ?
[pid 21348] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21348, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21349 attached
, child_tidptr=0x555555af35d0) = 21349
[pid 21349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21349] setpgid(0, 0)               = 0
[pid 21349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21349] write(3, "1000", 4)         = 4
[pid 21349] close(3)                    = 0
[pid 21349] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21349] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21349] write(4, "78", 2)           = 2
[pid 21349] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21349] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21349] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21349] exit_group(0)               = ?
[pid 21349] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21349, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21350 attached
, child_tidptr=0x555555af35d0) = 21350
[pid 21350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21350] setpgid(0, 0)               = 0
[pid 21350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21350] write(3, "1000", 4)         = 4
[pid 21350] close(3)                    = 0
[pid 21350] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21350] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21350] write(4, "78", 2)           = 2
[pid 21350] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21350] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21350] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21350] exit_group(0)               = ?
[pid 21350] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21350, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21351 attached
, child_tidptr=0x555555af35d0) = 21351
[pid 21351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21351] setpgid(0, 0)               = 0
[pid 21351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21351] write(3, "1000", 4)         = 4
[pid 21351] close(3)                    = 0
[pid 21351] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21351] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21351] write(4, "78", 2)           = 2
[pid 21351] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21351] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21351] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21351] exit_group(0)               = ?
[pid 21351] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21351, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21352 attached
, child_tidptr=0x555555af35d0) = 21352
[pid 21352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21352] setpgid(0, 0)               = 0
[pid 21352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21352] write(3, "1000", 4)         = 4
[pid 21352] close(3)                    = 0
[pid 21352] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21352] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21352] write(4, "78", 2)           = 2
[pid 21352] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21352] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21352] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21352] exit_group(0)               = ?
[pid 21352] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21352, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21353 attached
, child_tidptr=0x555555af35d0) = 21353
[pid 21353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21353] setpgid(0, 0)               = 0
[pid 21353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21353] write(3, "1000", 4)         = 4
[pid 21353] close(3)                    = 0
[pid 21353] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21353] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21353] write(4, "78", 2)           = 2
[pid 21353] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21353] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21353] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21353] exit_group(0)               = ?
[pid 21353] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21353, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21354 attached
, child_tidptr=0x555555af35d0) = 21354
[pid 21354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21354] setpgid(0, 0)               = 0
[pid 21354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21354] write(3, "1000", 4)         = 4
[pid 21354] close(3)                    = 0
[pid 21354] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21354] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21354] write(4, "78", 2)           = 2
[pid 21354] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21354] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21354] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21354] exit_group(0)               = ?
[pid 21354] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21354, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21355
./strace-static-x86_64: Process 21355 attached
[pid 21355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21355] setpgid(0, 0)               = 0
[pid 21355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21355] write(3, "1000", 4)         = 4
[pid 21355] close(3)                    = 0
[pid 21355] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21355] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21355] write(4, "78", 2)           = 2
[pid 21355] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21355] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21355] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21355] exit_group(0)               = ?
[pid 21355] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21355, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21356 attached
, child_tidptr=0x555555af35d0) = 21356
[pid 21356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21356] setpgid(0, 0)               = 0
[pid 21356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21356] write(3, "1000", 4)         = 4
[pid 21356] close(3)                    = 0
[pid 21356] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21356] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21356] write(4, "78", 2)           = 2
[pid 21356] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21356] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21356] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21356] exit_group(0)               = ?
[pid 21356] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21356, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21357 attached
, child_tidptr=0x555555af35d0) = 21357
[pid 21357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21357] setpgid(0, 0)               = 0
[pid 21357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21357] write(3, "1000", 4)         = 4
[pid 21357] close(3)                    = 0
[pid 21357] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21357] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21357] write(4, "78", 2)           = 2
[pid 21357] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21357] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21357] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21357] exit_group(0)               = ?
[pid 21357] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21357, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21358
./strace-static-x86_64: Process 21358 attached
[pid 21358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21358] setpgid(0, 0)               = 0
[pid 21358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21358] write(3, "1000", 4)         = 4
[pid 21358] close(3)                    = 0
[pid 21358] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21358] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21358] write(4, "78", 2)           = 2
[pid 21358] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21358] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21358] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21358] exit_group(0)               = ?
[pid 21358] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21358, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21359 attached
, child_tidptr=0x555555af35d0) = 21359
[pid 21359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21359] setpgid(0, 0)               = 0
[pid 21359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21359] write(3, "1000", 4)         = 4
[pid 21359] close(3)                    = 0
[pid 21359] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21359] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21359] write(4, "78", 2)           = 2
[pid 21359] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21359] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21359] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21359] exit_group(0)               = ?
[pid 21359] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21359, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21360 attached
, child_tidptr=0x555555af35d0) = 21360
[pid 21360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21360] setpgid(0, 0)               = 0
[pid 21360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21360] write(3, "1000", 4)         = 4
[pid 21360] close(3)                    = 0
[pid 21360] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21360] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21360] write(4, "78", 2)           = 2
[pid 21360] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21360] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21360] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21360] exit_group(0)               = ?
[pid 21360] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21360, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21361
./strace-static-x86_64: Process 21361 attached
[pid 21361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21361] setpgid(0, 0)               = 0
[pid 21361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21361] write(3, "1000", 4)         = 4
[pid 21361] close(3)                    = 0
[pid 21361] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21361] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21361] write(4, "78", 2)           = 2
[pid 21361] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21361] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21361] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21361] exit_group(0)               = ?
[pid 21361] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21361, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21362
./strace-static-x86_64: Process 21362 attached
[pid 21362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21362] setpgid(0, 0)               = 0
[pid 21362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21362] write(3, "1000", 4)         = 4
[pid 21362] close(3)                    = 0
[pid 21362] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21362] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21362] write(4, "78", 2)           = 2
[pid 21362] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21362] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21362] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21362] exit_group(0)               = ?
[pid 21362] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21362, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21363 attached
, child_tidptr=0x555555af35d0) = 21363
[pid 21363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21363] setpgid(0, 0)               = 0
[pid 21363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21363] write(3, "1000", 4)         = 4
[pid 21363] close(3)                    = 0
[pid 21363] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21363] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21363] write(4, "78", 2)           = 2
[pid 21363] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21363] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21363] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21363] exit_group(0)               = ?
[pid 21363] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21363, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21364 attached
, child_tidptr=0x555555af35d0) = 21364
[pid 21364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21364] setpgid(0, 0)               = 0
[pid 21364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21364] write(3, "1000", 4)         = 4
[pid 21364] close(3)                    = 0
[pid 21364] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21364] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21364] write(4, "78", 2)           = 2
[pid 21364] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21364] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21364] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21364] exit_group(0)               = ?
[pid 21364] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21364, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21365
./strace-static-x86_64: Process 21365 attached
[pid 21365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21365] setpgid(0, 0)               = 0
[pid 21365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21365] write(3, "1000", 4)         = 4
[pid 21365] close(3)                    = 0
[pid 21365] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21365] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21365] write(4, "78", 2)           = 2
[pid 21365] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21365] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21365] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21365] exit_group(0)               = ?
[pid 21365] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21365, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21366 attached
, child_tidptr=0x555555af35d0) = 21366
[pid 21366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21366] setpgid(0, 0)               = 0
[pid 21366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21366] write(3, "1000", 4)         = 4
[pid 21366] close(3)                    = 0
[pid 21366] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21366] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21366] write(4, "78", 2)           = 2
[pid 21366] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21366] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21366] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21366] exit_group(0)               = ?
[pid 21366] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21366, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21367 attached
, child_tidptr=0x555555af35d0) = 21367
[pid 21367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21367] setpgid(0, 0)               = 0
[pid 21367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21367] write(3, "1000", 4)         = 4
[pid 21367] close(3)                    = 0
[pid 21367] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21367] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21367] write(4, "78", 2)           = 2
[pid 21367] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21367] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21367] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21367] exit_group(0)               = ?
[pid 21367] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21367, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21368 attached
, child_tidptr=0x555555af35d0) = 21368
[pid 21368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21368] setpgid(0, 0)               = 0
[pid 21368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21368] write(3, "1000", 4)         = 4
[pid 21368] close(3)                    = 0
[pid 21368] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21368] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21368] write(4, "78", 2)           = 2
[pid 21368] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21368] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21368] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21368] exit_group(0)               = ?
[pid 21368] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21368, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21369 attached
, child_tidptr=0x555555af35d0) = 21369
[pid 21369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21369] setpgid(0, 0)               = 0
[pid 21369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21369] write(3, "1000", 4)         = 4
[pid 21369] close(3)                    = 0
[pid 21369] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21369] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21369] write(4, "78", 2)           = 2
[pid 21369] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21369] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21369] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21369] exit_group(0)               = ?
[pid 21369] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21369, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21370 attached
, child_tidptr=0x555555af35d0) = 21370
[pid 21370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21370] setpgid(0, 0)               = 0
[pid 21370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21370] write(3, "1000", 4)         = 4
[pid 21370] close(3)                    = 0
[pid 21370] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21370] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21370] write(4, "78", 2)           = 2
[pid 21370] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21370] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21370] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21370] exit_group(0)               = ?
[pid 21370] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21370, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21371 attached
, child_tidptr=0x555555af35d0) = 21371
[pid 21371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21371] setpgid(0, 0)               = 0
[pid 21371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21371] write(3, "1000", 4)         = 4
[pid 21371] close(3)                    = 0
[pid 21371] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21371] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21371] write(4, "78", 2)           = 2
[pid 21371] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21371] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21371] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21371] exit_group(0)               = ?
[pid 21371] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21371, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21372
./strace-static-x86_64: Process 21372 attached
[pid 21372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21372] setpgid(0, 0)               = 0
[pid 21372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21372] write(3, "1000", 4)         = 4
[pid 21372] close(3)                    = 0
[pid 21372] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21372] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21372] write(4, "78", 2)           = 2
[pid 21372] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21372] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21372] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21372] exit_group(0)               = ?
[pid 21372] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21372, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21373 attached
, child_tidptr=0x555555af35d0) = 21373
[pid 21373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21373] setpgid(0, 0)               = 0
[pid 21373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21373] write(3, "1000", 4)         = 4
[pid 21373] close(3)                    = 0
[pid 21373] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21373] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21373] write(4, "78", 2)           = 2
[pid 21373] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21373] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21373] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21373] exit_group(0)               = ?
[pid 21373] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21373, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21374 attached
, child_tidptr=0x555555af35d0) = 21374
[pid 21374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21374] setpgid(0, 0)               = 0
[pid 21374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21374] write(3, "1000", 4)         = 4
[pid 21374] close(3)                    = 0
[pid 21374] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21374] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21374] write(4, "78", 2)           = 2
[pid 21374] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21374] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21374] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21374] exit_group(0)               = ?
[pid 21374] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21374, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21375 attached
, child_tidptr=0x555555af35d0) = 21375
[pid 21375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21375] setpgid(0, 0)               = 0
[pid 21375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21375] write(3, "1000", 4)         = 4
[pid 21375] close(3)                    = 0
[pid 21375] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21375] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21375] write(4, "78", 2)           = 2
[pid 21375] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21375] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21375] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21375] exit_group(0)               = ?
[pid 21375] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21375, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21376 attached
, child_tidptr=0x555555af35d0) = 21376
[pid 21376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21376] setpgid(0, 0)               = 0
[pid 21376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21376] write(3, "1000", 4)         = 4
[pid 21376] close(3)                    = 0
[pid 21376] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21376] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21376] write(4, "78", 2)           = 2
[pid 21376] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21376] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21376] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21376] exit_group(0)               = ?
[pid 21376] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21376, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21377 attached
, child_tidptr=0x555555af35d0) = 21377
[pid 21377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21377] setpgid(0, 0)               = 0
[pid 21377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21377] write(3, "1000", 4)         = 4
[pid 21377] close(3)                    = 0
[pid 21377] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21377] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21377] write(4, "78", 2)           = 2
[pid 21377] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21377] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21377] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21377] exit_group(0)               = ?
[pid 21377] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21377, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21378 attached
, child_tidptr=0x555555af35d0) = 21378
[pid 21378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21378] setpgid(0, 0)               = 0
[pid 21378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21378] write(3, "1000", 4)         = 4
[pid 21378] close(3)                    = 0
[pid 21378] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21378] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21378] write(4, "78", 2)           = 2
[pid 21378] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21378] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21378] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21378] exit_group(0)               = ?
[pid 21378] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21378, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21379 attached
, child_tidptr=0x555555af35d0) = 21379
[pid 21379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21379] setpgid(0, 0)               = 0
[pid 21379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21379] write(3, "1000", 4)         = 4
[pid 21379] close(3)                    = 0
[pid 21379] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21379] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21379] write(4, "78", 2)           = 2
[pid 21379] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21379] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21379] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21379] exit_group(0)               = ?
[pid 21379] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21379, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21380 attached
, child_tidptr=0x555555af35d0) = 21380
[pid 21380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21380] setpgid(0, 0)               = 0
[pid 21380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21380] write(3, "1000", 4)         = 4
[pid 21380] close(3)                    = 0
[pid 21380] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21380] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21380] write(4, "78", 2)           = 2
[pid 21380] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21380] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21380] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21380] exit_group(0)               = ?
[pid 21380] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21380, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21381 attached
, child_tidptr=0x555555af35d0) = 21381
[pid 21381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21381] setpgid(0, 0)               = 0
[pid 21381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21381] write(3, "1000", 4)         = 4
[pid 21381] close(3)                    = 0
[pid 21381] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21381] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21381] write(4, "78", 2)           = 2
[pid 21381] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21381] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21381] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21381] exit_group(0)               = ?
[pid 21381] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21381, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21382 attached
, child_tidptr=0x555555af35d0) = 21382
[pid 21382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21382] setpgid(0, 0)               = 0
[pid 21382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21382] write(3, "1000", 4)         = 4
[pid 21382] close(3)                    = 0
[pid 21382] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21382] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21382] write(4, "78", 2)           = 2
[pid 21382] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21382] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21382] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21382] exit_group(0)               = ?
[pid 21382] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21382, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21383 attached
, child_tidptr=0x555555af35d0) = 21383
[pid 21383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21383] setpgid(0, 0)               = 0
[pid 21383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21383] write(3, "1000", 4)         = 4
[pid 21383] close(3)                    = 0
[pid 21383] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21383] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21383] write(4, "78", 2)           = 2
[pid 21383] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21383] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21383] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21383] exit_group(0)               = ?
[pid 21383] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21383, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21384 attached
, child_tidptr=0x555555af35d0) = 21384
[pid 21384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21384] setpgid(0, 0)               = 0
[pid 21384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21384] write(3, "1000", 4)         = 4
[pid 21384] close(3)                    = 0
[pid 21384] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21384] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21384] write(4, "78", 2)           = 2
[pid 21384] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21384] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21384] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21384] exit_group(0)               = ?
[pid 21384] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21384, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21385 attached
, child_tidptr=0x555555af35d0) = 21385
[pid 21385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21385] setpgid(0, 0)               = 0
[pid 21385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21385] write(3, "1000", 4)         = 4
[pid 21385] close(3)                    = 0
[pid 21385] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21385] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21385] write(4, "78", 2)           = 2
[pid 21385] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21385] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21385] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21385] exit_group(0)               = ?
[pid 21385] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21385, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21386 attached
, child_tidptr=0x555555af35d0) = 21386
[pid 21386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21386] setpgid(0, 0)               = 0
[pid 21386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21386] write(3, "1000", 4)         = 4
[pid 21386] close(3)                    = 0
[pid 21386] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21386] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21386] write(4, "78", 2)           = 2
[pid 21386] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21386] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21386] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21386] exit_group(0)               = ?
[pid 21386] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21386, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21387 attached
, child_tidptr=0x555555af35d0) = 21387
[pid 21387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21387] setpgid(0, 0)               = 0
[pid 21387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21387] write(3, "1000", 4)         = 4
[pid 21387] close(3)                    = 0
[pid 21387] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21387] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21387] write(4, "78", 2)           = 2
[pid 21387] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21387] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21387] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21387] exit_group(0)               = ?
[pid 21387] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21387, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21388 attached
, child_tidptr=0x555555af35d0) = 21388
[pid 21388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21388] setpgid(0, 0)               = 0
[pid 21388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21388] write(3, "1000", 4)         = 4
[pid 21388] close(3)                    = 0
[pid 21388] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21388] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21388] write(4, "78", 2)           = 2
[pid 21388] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21388] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21388] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21388] exit_group(0)               = ?
[pid 21388] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21388, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21389 attached
, child_tidptr=0x555555af35d0) = 21389
[pid 21389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21389] setpgid(0, 0)               = 0
[pid 21389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21389] write(3, "1000", 4)         = 4
[pid 21389] close(3)                    = 0
[pid 21389] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21389] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21389] write(4, "78", 2)           = 2
[pid 21389] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21389] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21389] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21389] exit_group(0)               = ?
[pid 21389] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21389, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21390
./strace-static-x86_64: Process 21390 attached
[pid 21390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21390] setpgid(0, 0)               = 0
[pid 21390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21390] write(3, "1000", 4)         = 4
[pid 21390] close(3)                    = 0
[pid 21390] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21390] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21390] write(4, "78", 2)           = 2
[pid 21390] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21390] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21390] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21390] exit_group(0)               = ?
[pid 21390] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21390, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21391 attached
, child_tidptr=0x555555af35d0) = 21391
[pid 21391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21391] setpgid(0, 0)               = 0
[pid 21391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21391] write(3, "1000", 4)         = 4
[pid 21391] close(3)                    = 0
[pid 21391] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21391] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21391] write(4, "78", 2)           = 2
[pid 21391] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21391] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21391] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21391] exit_group(0)               = ?
[pid 21391] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21391, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21392 attached
, child_tidptr=0x555555af35d0) = 21392
[pid 21392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21392] setpgid(0, 0)               = 0
[pid 21392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21392] write(3, "1000", 4)         = 4
[pid 21392] close(3)                    = 0
[pid 21392] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21392] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21392] write(4, "78", 2)           = 2
[pid 21392] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21392] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21392] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21392] exit_group(0)               = ?
[pid 21392] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21392, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21393 attached
, child_tidptr=0x555555af35d0) = 21393
[pid 21393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21393] setpgid(0, 0)               = 0
[pid 21393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21393] write(3, "1000", 4)         = 4
[pid 21393] close(3)                    = 0
[pid 21393] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21393] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21393] write(4, "78", 2)           = 2
[pid 21393] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21393] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21393] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 21393] exit_group(0)               = ?
[pid 21393] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21393, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21394 attached
, child_tidptr=0x555555af35d0) = 21394
[pid 21394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21394] setpgid(0, 0)               = 0
[pid 21394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21394] write(3, "1000", 4)         = 4
[pid 21394] close(3)                    = 0
[pid 21394] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21394] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21394] write(4, "78", 2)           = 2
[pid 21394] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 21394] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21394] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21394] exit_group(0)               = ?
[pid 21394] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21394, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21395 attached
, child_tidptr=0x555555af35d0) = 21395
[pid 21395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21395] setpgid(0, 0)               = 0
[pid 21395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21395] write(3, "1000", 4)         = 4
[pid 21395] close(3)                    = 0
[pid 21395] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21395] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21395] write(4, "78", 2)           = 2
[pid 21395] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21395] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21395] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21395] exit_group(0)               = ?
[pid 21395] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21395, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21396 attached
, child_tidptr=0x555555af35d0) = 21396
[pid 21396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21396] setpgid(0, 0)               = 0
[pid 21396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21396] write(3, "1000", 4)         = 4
[pid 21396] close(3)                    = 0
[pid 21396] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21396] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21396] write(4, "78", 2)           = 2
[pid 21396] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21396] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21396] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21396] exit_group(0)               = ?
[pid 21396] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21396, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21397
./strace-static-x86_64: Process 21397 attached
[pid 21397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21397] setpgid(0, 0)               = 0
[pid 21397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21397] write(3, "1000", 4)         = 4
[pid 21397] close(3)                    = 0
[pid 21397] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21397] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21397] write(4, "78", 2)           = 2
[pid 21397] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21397] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21397] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21397] exit_group(0)               = ?
[pid 21397] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21397, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21398 attached
, child_tidptr=0x555555af35d0) = 21398
[pid 21398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21398] setpgid(0, 0)               = 0
[pid 21398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21398] write(3, "1000", 4)         = 4
[pid 21398] close(3)                    = 0
[pid 21398] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21398] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21398] write(4, "78", 2)           = 2
[pid 21398] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21398] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21398] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21398] exit_group(0)               = ?
[pid 21398] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21398, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21399 attached
, child_tidptr=0x555555af35d0) = 21399
[pid 21399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21399] setpgid(0, 0)               = 0
[pid 21399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21399] write(3, "1000", 4)         = 4
[pid 21399] close(3)                    = 0
[pid 21399] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21399] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21399] write(4, "78", 2)           = 2
[pid 21399] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21399] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21399] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21399] exit_group(0)               = ?
[pid 21399] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21399, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21400 attached
, child_tidptr=0x555555af35d0) = 21400
[pid 21400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21400] setpgid(0, 0)               = 0
[pid 21400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21400] write(3, "1000", 4)         = 4
[pid 21400] close(3)                    = 0
[pid 21400] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21400] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21400] write(4, "78", 2)           = 2
[pid 21400] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21400] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21400] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21400] exit_group(0)               = ?
[pid 21400] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21400, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21401
./strace-static-x86_64: Process 21401 attached
[pid 21401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21401] setpgid(0, 0)               = 0
[pid 21401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21401] write(3, "1000", 4)         = 4
[pid 21401] close(3)                    = 0
[pid 21401] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21401] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21401] write(4, "78", 2)           = 2
[pid 21401] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21401] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21401] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21401] exit_group(0)               = ?
[pid 21401] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21401, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21402 attached
, child_tidptr=0x555555af35d0) = 21402
[pid 21402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21402] setpgid(0, 0)               = 0
[pid 21402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21402] write(3, "1000", 4)         = 4
[pid 21402] close(3)                    = 0
[pid 21402] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21402] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21402] write(4, "78", 2)           = 2
[pid 21402] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21402] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21402] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21402] exit_group(0)               = ?
[pid 21402] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21402, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21403 attached
, child_tidptr=0x555555af35d0) = 21403
[pid 21403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21403] setpgid(0, 0)               = 0
[pid 21403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21403] write(3, "1000", 4)         = 4
[pid 21403] close(3)                    = 0
[pid 21403] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21403] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21403] write(4, "78", 2)           = 2
[pid 21403] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21403] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21403] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21403] exit_group(0)               = ?
[pid 21403] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21403, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21404
./strace-static-x86_64: Process 21404 attached
[pid 21404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21404] setpgid(0, 0)               = 0
[pid 21404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21404] write(3, "1000", 4)         = 4
[pid 21404] close(3)                    = 0
[pid 21404] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21404] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21404] write(4, "78", 2)           = 2
[pid 21404] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21404] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21404] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21404] exit_group(0)               = ?
[pid 21404] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21404, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21405 attached
, child_tidptr=0x555555af35d0) = 21405
[pid 21405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21405] setpgid(0, 0)               = 0
[pid 21405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21405] write(3, "1000", 4)         = 4
[pid 21405] close(3)                    = 0
[pid 21405] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21405] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21405] write(4, "78", 2)           = 2
[pid 21405] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21405] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21405] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21405] exit_group(0)               = ?
[pid 21405] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21405, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21406 attached
, child_tidptr=0x555555af35d0) = 21406
[pid 21406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21406] setpgid(0, 0)               = 0
[pid 21406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21406] write(3, "1000", 4)         = 4
[pid 21406] close(3)                    = 0
[pid 21406] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21406] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21406] write(4, "78", 2)           = 2
[pid 21406] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21406] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21406] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21406] exit_group(0)               = ?
[pid 21406] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21406, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21407
./strace-static-x86_64: Process 21407 attached
[pid 21407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21407] setpgid(0, 0)               = 0
[pid 21407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21407] write(3, "1000", 4)         = 4
[pid 21407] close(3)                    = 0
[pid 21407] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21407] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21407] write(4, "78", 2)           = 2
[pid 21407] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21407] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21407] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21407] exit_group(0)               = ?
[pid 21407] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21407, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21408 attached
, child_tidptr=0x555555af35d0) = 21408
[pid 21408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21408] setpgid(0, 0)               = 0
[pid 21408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21408] write(3, "1000", 4)         = 4
[pid 21408] close(3)                    = 0
[pid 21408] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21408] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21408] write(4, "78", 2)           = 2
[pid 21408] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21408] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21408] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21408] exit_group(0)               = ?
[pid 21408] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21408, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21409 attached
, child_tidptr=0x555555af35d0) = 21409
[pid 21409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21409] setpgid(0, 0)               = 0
[pid 21409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21409] write(3, "1000", 4)         = 4
[pid 21409] close(3)                    = 0
[pid 21409] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21409] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21409] write(4, "78", 2)           = 2
[pid 21409] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21409] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21409] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21409] exit_group(0)               = ?
[pid 21409] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21409, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21410 attached
, child_tidptr=0x555555af35d0) = 21410
[pid 21410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21410] setpgid(0, 0)               = 0
[pid 21410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21410] write(3, "1000", 4)         = 4
[pid 21410] close(3)                    = 0
[pid 21410] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21410] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21410] write(4, "78", 2)           = 2
[pid 21410] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21410] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21410] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21410] exit_group(0)               = ?
[pid 21410] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21410, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21411
./strace-static-x86_64: Process 21411 attached
[pid 21411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21411] setpgid(0, 0)               = 0
[pid 21411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21411] write(3, "1000", 4)         = 4
[pid 21411] close(3)                    = 0
[pid 21411] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21411] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21411] write(4, "78", 2)           = 2
[pid 21411] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21411] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21411] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21411] exit_group(0)               = ?
[pid 21411] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21411, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21412 attached
, child_tidptr=0x555555af35d0) = 21412
[pid 21412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21412] setpgid(0, 0)               = 0
[pid 21412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21412] write(3, "1000", 4)         = 4
[pid 21412] close(3)                    = 0
[pid 21412] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21412] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21412] write(4, "78", 2)           = 2
[pid 21412] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21412] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21412] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21412] exit_group(0)               = ?
[pid 21412] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21412, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21413 attached
, child_tidptr=0x555555af35d0) = 21413
[pid 21413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21413] setpgid(0, 0)               = 0
[pid 21413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21413] write(3, "1000", 4)         = 4
[pid 21413] close(3)                    = 0
[pid 21413] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21413] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21413] write(4, "78", 2)           = 2
[pid 21413] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21413] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21413] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21413] exit_group(0)               = ?
[pid 21413] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21413, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21414 attached
, child_tidptr=0x555555af35d0) = 21414
[pid 21414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21414] setpgid(0, 0)               = 0
[pid 21414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21414] write(3, "1000", 4)         = 4
[pid 21414] close(3)                    = 0
[pid 21414] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21414] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21414] write(4, "78", 2)           = 2
[pid 21414] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21414] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21414] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21414] exit_group(0)               = ?
[pid 21414] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21414, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21415
./strace-static-x86_64: Process 21415 attached
[pid 21415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21415] setpgid(0, 0)               = 0
[pid 21415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21415] write(3, "1000", 4)         = 4
[pid 21415] close(3)                    = 0
[pid 21415] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21415] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21415] write(4, "78", 2)           = 2
[pid 21415] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21415] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21415] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21415] exit_group(0)               = ?
[pid 21415] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21415, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21416 attached
, child_tidptr=0x555555af35d0) = 21416
[pid 21416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21416] setpgid(0, 0)               = 0
[pid 21416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21416] write(3, "1000", 4)         = 4
[pid 21416] close(3)                    = 0
[pid 21416] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21416] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21416] write(4, "78", 2)           = 2
[pid 21416] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21416] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21416] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21416] exit_group(0)               = ?
[pid 21416] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21416, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21417 attached
, child_tidptr=0x555555af35d0) = 21417
[pid 21417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21417] setpgid(0, 0)               = 0
[pid 21417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21417] write(3, "1000", 4)         = 4
[pid 21417] close(3)                    = 0
[pid 21417] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21417] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21417] write(4, "78", 2)           = 2
[pid 21417] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21417] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21417] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21417] exit_group(0)               = ?
[pid 21417] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21417, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21418 attached
, child_tidptr=0x555555af35d0) = 21418
[pid 21418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21418] setpgid(0, 0)               = 0
[pid 21418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21418] write(3, "1000", 4)         = 4
[pid 21418] close(3)                    = 0
[pid 21418] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21418] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21418] write(4, "78", 2)           = 2
[pid 21418] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21418] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21418] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21418] exit_group(0)               = ?
[pid 21418] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21418, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21419 attached
, child_tidptr=0x555555af35d0) = 21419
[pid 21419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21419] setpgid(0, 0)               = 0
[pid 21419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21419] write(3, "1000", 4)         = 4
[pid 21419] close(3)                    = 0
[pid 21419] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21419] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21419] write(4, "78", 2)           = 2
[pid 21419] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21419] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21419] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21419] exit_group(0)               = ?
[pid 21419] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21419, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21420 attached
, child_tidptr=0x555555af35d0) = 21420
[pid 21420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21420] setpgid(0, 0)               = 0
[pid 21420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21420] write(3, "1000", 4)         = 4
[pid 21420] close(3)                    = 0
[pid 21420] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21420] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21420] write(4, "78", 2)           = 2
[pid 21420] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21420] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21420] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21420] exit_group(0)               = ?
[pid 21420] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21420, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21421
./strace-static-x86_64: Process 21421 attached
[pid 21421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21421] setpgid(0, 0)               = 0
[pid 21421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21421] write(3, "1000", 4)         = 4
[pid 21421] close(3)                    = 0
[pid 21421] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21421] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21421] write(4, "78", 2)           = 2
[pid 21421] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21421] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21421] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21421] exit_group(0)               = ?
[pid 21421] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21421, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21422 attached
, child_tidptr=0x555555af35d0) = 21422
[pid 21422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21422] setpgid(0, 0)               = 0
[pid 21422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21422] write(3, "1000", 4)         = 4
[pid 21422] close(3)                    = 0
[pid 21422] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21422] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21422] write(4, "78", 2)           = 2
[pid 21422] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21422] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21422] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21422] exit_group(0)               = ?
[pid 21422] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21422, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21423 attached
, child_tidptr=0x555555af35d0) = 21423
[pid 21423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21423] setpgid(0, 0)               = 0
[pid 21423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21423] write(3, "1000", 4)         = 4
[pid 21423] close(3)                    = 0
[pid 21423] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21423] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21423] write(4, "78", 2)           = 2
[pid 21423] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21423] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21423] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21423] exit_group(0)               = ?
[pid 21423] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21423, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21424 attached
, child_tidptr=0x555555af35d0) = 21424
[pid 21424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21424] setpgid(0, 0)               = 0
[pid 21424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21424] write(3, "1000", 4)         = 4
[pid 21424] close(3)                    = 0
[pid 21424] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21424] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21424] write(4, "78", 2)           = 2
[pid 21424] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21424] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21424] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21424] exit_group(0)               = ?
[pid 21424] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21424, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21425 attached
, child_tidptr=0x555555af35d0) = 21425
[pid 21425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21425] setpgid(0, 0)               = 0
[pid 21425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21425] write(3, "1000", 4)         = 4
[pid 21425] close(3)                    = 0
[pid 21425] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21425] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21425] write(4, "78", 2)           = 2
[pid 21425] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21425] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21425] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21425] exit_group(0)               = ?
[pid 21425] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21425, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21426 attached
, child_tidptr=0x555555af35d0) = 21426
[pid 21426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21426] setpgid(0, 0)               = 0
[pid 21426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21426] write(3, "1000", 4)         = 4
[pid 21426] close(3)                    = 0
[pid 21426] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21426] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21426] write(4, "78", 2)           = 2
[pid 21426] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21426] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21426] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21426] exit_group(0)               = ?
[pid 21426] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21426, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21427 attached
, child_tidptr=0x555555af35d0) = 21427
[pid 21427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21427] setpgid(0, 0)               = 0
[pid 21427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21427] write(3, "1000", 4)         = 4
[pid 21427] close(3)                    = 0
[pid 21427] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21427] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21427] write(4, "78", 2)           = 2
[pid 21427] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21427] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21427] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21427] exit_group(0)               = ?
[pid 21427] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21427, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21428 attached
, child_tidptr=0x555555af35d0) = 21428
[pid 21428] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21428] setpgid(0, 0)               = 0
[pid 21428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21428] write(3, "1000", 4)         = 4
[pid 21428] close(3)                    = 0
[pid 21428] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21428] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21428] write(4, "78", 2)           = 2
[pid 21428] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21428] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21428] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21428] exit_group(0)               = ?
[pid 21428] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21428, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21429 attached
, child_tidptr=0x555555af35d0) = 21429
[pid 21429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21429] setpgid(0, 0)               = 0
[pid 21429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21429] write(3, "1000", 4)         = 4
[pid 21429] close(3)                    = 0
[pid 21429] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21429] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21429] write(4, "78", 2)           = 2
[pid 21429] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21429] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21429] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21429] exit_group(0)               = ?
[pid 21429] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21429, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21430 attached
, child_tidptr=0x555555af35d0) = 21430
[pid 21430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21430] setpgid(0, 0)               = 0
[pid 21430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21430] write(3, "1000", 4)         = 4
[pid 21430] close(3)                    = 0
[pid 21430] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21430] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21430] write(4, "78", 2)           = 2
[pid 21430] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21430] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21430] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21430] exit_group(0)               = ?
[pid 21430] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21430, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21431 attached
 <unfinished ...>
[pid 21431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 21431
[pid 21431] setpgid(0, 0)               = 0
[pid 21431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21431] write(3, "1000", 4)         = 4
[pid 21431] close(3)                    = 0
[pid 21431] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21431] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21431] write(4, "78", 2)           = 2
[pid 21431] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21431] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21431] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21431] exit_group(0)               = ?
[pid 21431] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21431, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21432 attached
, child_tidptr=0x555555af35d0) = 21432
[pid 21432] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21432] setpgid(0, 0)               = 0
[pid 21432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21432] write(3, "1000", 4)         = 4
[pid 21432] close(3)                    = 0
[pid 21432] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21432] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21432] write(4, "78", 2)           = 2
[pid 21432] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21432] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21432] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21432] exit_group(0)               = ?
[pid 21432] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21432, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21433
./strace-static-x86_64: Process 21433 attached
[pid 21433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21433] setpgid(0, 0)               = 0
[pid 21433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21433] write(3, "1000", 4)         = 4
[pid 21433] close(3)                    = 0
[pid 21433] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21433] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21433] write(4, "78", 2)           = 2
[pid 21433] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21433] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21433] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21433] exit_group(0)               = ?
[pid 21433] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21433, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21434 attached
, child_tidptr=0x555555af35d0) = 21434
[pid 21434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21434] setpgid(0, 0)               = 0
[pid 21434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21434] write(3, "1000", 4)         = 4
[pid 21434] close(3)                    = 0
[pid 21434] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21434] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21434] write(4, "78", 2)           = 2
[pid 21434] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21434] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21434] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21434] exit_group(0)               = ?
[pid 21434] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21434, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21435
./strace-static-x86_64: Process 21435 attached
[pid 21435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21435] setpgid(0, 0)               = 0
[pid 21435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21435] write(3, "1000", 4)         = 4
[pid 21435] close(3)                    = 0
[pid 21435] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21435] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21435] write(4, "78", 2)           = 2
[pid 21435] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21435] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21435] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21435] exit_group(0)               = ?
[pid 21435] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21435, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21436 attached
, child_tidptr=0x555555af35d0) = 21436
[pid 21436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21436] setpgid(0, 0)               = 0
[pid 21436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21436] write(3, "1000", 4)         = 4
[pid 21436] close(3)                    = 0
[pid 21436] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21436] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21436] write(4, "78", 2)           = 2
[pid 21436] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21436] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21436] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21436] exit_group(0)               = ?
[pid 21436] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21436, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21437 attached
, child_tidptr=0x555555af35d0) = 21437
[pid 21437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21437] setpgid(0, 0)               = 0
[pid 21437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21437] write(3, "1000", 4)         = 4
[pid 21437] close(3)                    = 0
[pid 21437] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21437] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21437] write(4, "78", 2)           = 2
[pid 21437] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21437] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21437] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21437] exit_group(0)               = ?
[pid 21437] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21437, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21438 attached
, child_tidptr=0x555555af35d0) = 21438
[pid 21438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21438] setpgid(0, 0)               = 0
[pid 21438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21438] write(3, "1000", 4)         = 4
[pid 21438] close(3)                    = 0
[pid 21438] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21438] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21438] write(4, "78", 2)           = 2
[pid 21438] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21438] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21438] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21438] exit_group(0)               = ?
[pid 21438] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21438, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21439 attached
, child_tidptr=0x555555af35d0) = 21439
[pid 21439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21439] setpgid(0, 0)               = 0
[pid 21439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21439] write(3, "1000", 4)         = 4
[pid 21439] close(3)                    = 0
[pid 21439] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21439] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21439] write(4, "78", 2)           = 2
[pid 21439] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21439] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21439] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21439] exit_group(0)               = ?
[pid 21439] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21439, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21440 attached
, child_tidptr=0x555555af35d0) = 21440
[pid 21440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21440] setpgid(0, 0)               = 0
[pid 21440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21440] write(3, "1000", 4)         = 4
[pid 21440] close(3)                    = 0
[pid 21440] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21440] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21440] write(4, "78", 2)           = 2
[pid 21440] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21440] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21440] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21440] exit_group(0)               = ?
[pid 21440] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21440, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21441 attached
, child_tidptr=0x555555af35d0) = 21441
[pid 21441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21441] setpgid(0, 0)               = 0
[pid 21441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21441] write(3, "1000", 4)         = 4
[pid 21441] close(3)                    = 0
[pid 21441] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21441] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21441] write(4, "78", 2)           = 2
[pid 21441] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21441] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21441] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21441] exit_group(0)               = ?
[pid 21441] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21441, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21442 attached
, child_tidptr=0x555555af35d0) = 21442
[pid 21442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21442] setpgid(0, 0)               = 0
[pid 21442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21442] write(3, "1000", 4)         = 4
[pid 21442] close(3)                    = 0
[pid 21442] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21442] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21442] write(4, "78", 2)           = 2
[pid 21442] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21442] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21442] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21442] exit_group(0)               = ?
[pid 21442] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21442, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21443 attached
, child_tidptr=0x555555af35d0) = 21443
[pid 21443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21443] setpgid(0, 0)               = 0
[pid 21443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21443] write(3, "1000", 4)         = 4
[pid 21443] close(3)                    = 0
[pid 21443] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21443] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21443] write(4, "78", 2)           = 2
[pid 21443] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21443] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21443] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21443] exit_group(0)               = ?
[pid 21443] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21443, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21444 attached
, child_tidptr=0x555555af35d0) = 21444
[pid 21444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21444] setpgid(0, 0)               = 0
[pid 21444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21444] write(3, "1000", 4)         = 4
[pid 21444] close(3)                    = 0
[pid 21444] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21444] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21444] write(4, "78", 2)           = 2
[pid 21444] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21444] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21444] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21444] exit_group(0)               = ?
[pid 21444] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21444, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21445 attached
, child_tidptr=0x555555af35d0) = 21445
[pid 21445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21445] setpgid(0, 0)               = 0
[pid 21445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21445] write(3, "1000", 4)         = 4
[pid 21445] close(3)                    = 0
[pid 21445] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21445] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21445] write(4, "78", 2)           = 2
[pid 21445] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21445] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21445] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21445] exit_group(0)               = ?
[pid 21445] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21445, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21446 attached
, child_tidptr=0x555555af35d0) = 21446
[pid 21446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21446] setpgid(0, 0)               = 0
[pid 21446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21446] write(3, "1000", 4)         = 4
[pid 21446] close(3)                    = 0
[pid 21446] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21446] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21446] write(4, "78", 2)           = 2
[pid 21446] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21446] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21446] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21446] exit_group(0)               = ?
[pid 21446] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21446, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21447 attached
, child_tidptr=0x555555af35d0) = 21447
[pid 21447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21447] setpgid(0, 0)               = 0
[pid 21447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21447] write(3, "1000", 4)         = 4
[pid 21447] close(3)                    = 0
[pid 21447] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21447] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21447] write(4, "78", 2)           = 2
[pid 21447] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21447] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21447] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21447] exit_group(0)               = ?
[pid 21447] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21447, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21448
./strace-static-x86_64: Process 21448 attached
[pid 21448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21448] setpgid(0, 0)               = 0
[pid 21448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21448] write(3, "1000", 4)         = 4
[pid 21448] close(3)                    = 0
[pid 21448] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21448] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21448] write(4, "78", 2)           = 2
[pid 21448] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21448] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21448] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21448] exit_group(0)               = ?
[pid 21448] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21448, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21449 attached
, child_tidptr=0x555555af35d0) = 21449
[pid 21449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21449] setpgid(0, 0)               = 0
[pid 21449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21449] write(3, "1000", 4)         = 4
[pid 21449] close(3)                    = 0
[pid 21449] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21449] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21449] write(4, "78", 2)           = 2
[pid 21449] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21449] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21449] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21449] exit_group(0)               = ?
[pid 21449] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21449, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21450
./strace-static-x86_64: Process 21450 attached
[pid 21450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21450] setpgid(0, 0)               = 0
[pid 21450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21450] write(3, "1000", 4)         = 4
[pid 21450] close(3)                    = 0
[pid 21450] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21450] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21450] write(4, "78", 2)           = 2
[pid 21450] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21450] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21450] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21450] exit_group(0)               = ?
[pid 21450] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21450, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21451
./strace-static-x86_64: Process 21451 attached
[pid 21451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21451] setpgid(0, 0)               = 0
[pid 21451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21451] write(3, "1000", 4)         = 4
[pid 21451] close(3)                    = 0
[pid 21451] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21451] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21451] write(4, "78", 2)           = 2
[pid 21451] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21451] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21451] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21451] exit_group(0)               = ?
[pid 21451] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21451, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21452 attached
, child_tidptr=0x555555af35d0) = 21452
[pid 21452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21452] setpgid(0, 0)               = 0
[pid 21452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21452] write(3, "1000", 4)         = 4
[pid 21452] close(3)                    = 0
[pid 21452] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21452] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21452] write(4, "78", 2)           = 2
[pid 21452] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21452] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21452] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21452] exit_group(0)               = ?
[pid 21452] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21452, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21453 attached
, child_tidptr=0x555555af35d0) = 21453
[pid 21453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21453] setpgid(0, 0)               = 0
[pid 21453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21453] write(3, "1000", 4)         = 4
[pid 21453] close(3)                    = 0
[pid 21453] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21453] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21453] write(4, "78", 2)           = 2
[pid 21453] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21453] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21453] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21453] exit_group(0)               = ?
[pid 21453] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21453, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21454 attached
, child_tidptr=0x555555af35d0) = 21454
[pid 21454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21454] setpgid(0, 0)               = 0
[pid 21454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21454] write(3, "1000", 4)         = 4
[pid 21454] close(3)                    = 0
[pid 21454] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21454] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21454] write(4, "78", 2)           = 2
[pid 21454] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21454] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21454] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21454] exit_group(0)               = ?
[pid 21454] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21454, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21455 attached
, child_tidptr=0x555555af35d0) = 21455
[pid 21455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21455] setpgid(0, 0)               = 0
[pid 21455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21455] write(3, "1000", 4)         = 4
[pid 21455] close(3)                    = 0
[pid 21455] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21455] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21455] write(4, "78", 2)           = 2
[pid 21455] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21455] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21455] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21455] exit_group(0)               = ?
[pid 21455] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21455, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21456 attached
, child_tidptr=0x555555af35d0) = 21456
[pid 21456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21456] setpgid(0, 0)               = 0
[pid 21456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21456] write(3, "1000", 4)         = 4
[pid 21456] close(3)                    = 0
[pid 21456] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21456] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21456] write(4, "78", 2)           = 2
[pid 21456] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21456] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21456] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21456] exit_group(0)               = ?
[pid 21456] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21456, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21457 attached
, child_tidptr=0x555555af35d0) = 21457
[pid 21457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21457] setpgid(0, 0)               = 0
[pid 21457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21457] write(3, "1000", 4)         = 4
[pid 21457] close(3)                    = 0
[pid 21457] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21457] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21457] write(4, "78", 2)           = 2
[pid 21457] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21457] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21457] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21457] exit_group(0)               = ?
[pid 21457] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21457, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21458 attached
, child_tidptr=0x555555af35d0) = 21458
[pid 21458] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21458] setpgid(0, 0)               = 0
[pid 21458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21458] write(3, "1000", 4)         = 4
[pid 21458] close(3)                    = 0
[pid 21458] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21458] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21458] write(4, "78", 2)           = 2
[pid 21458] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21458] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21458] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21458] exit_group(0)               = ?
[pid 21458] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21458, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21459
./strace-static-x86_64: Process 21459 attached
[pid 21459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21459] setpgid(0, 0)               = 0
[pid 21459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21459] write(3, "1000", 4)         = 4
[pid 21459] close(3)                    = 0
[pid 21459] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21459] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21459] write(4, "78", 2)           = 2
[pid 21459] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21459] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21459] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21459] exit_group(0)               = ?
[pid 21459] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21459, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21460
./strace-static-x86_64: Process 21460 attached
[pid 21460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21460] setpgid(0, 0)               = 0
[pid 21460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21460] write(3, "1000", 4)         = 4
[pid 21460] close(3)                    = 0
[pid 21460] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21460] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21460] write(4, "78", 2)           = 2
[pid 21460] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21460] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21460] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21460] exit_group(0)               = ?
[pid 21460] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21460, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21461
./strace-static-x86_64: Process 21461 attached
[pid 21461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21461] setpgid(0, 0)               = 0
[pid 21461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21461] write(3, "1000", 4)         = 4
[pid 21461] close(3)                    = 0
[pid 21461] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21461] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21461] write(4, "78", 2)           = 2
[pid 21461] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21461] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21461] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21461] exit_group(0)               = ?
[pid 21461] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21461, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21462 attached
, child_tidptr=0x555555af35d0) = 21462
[pid 21462] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21462] setpgid(0, 0)               = 0
[pid 21462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21462] write(3, "1000", 4)         = 4
[pid 21462] close(3)                    = 0
[pid 21462] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21462] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21462] write(4, "78", 2)           = 2
[pid 21462] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21462] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21462] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21462] exit_group(0)               = ?
[pid 21462] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21462, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21463 attached
, child_tidptr=0x555555af35d0) = 21463
[pid 21463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21463] setpgid(0, 0)               = 0
[pid 21463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21463] write(3, "1000", 4)         = 4
[pid 21463] close(3)                    = 0
[pid 21463] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21463] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21463] write(4, "78", 2)           = 2
[pid 21463] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21463] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21463] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21463] exit_group(0)               = ?
[pid 21463] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21463, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21464
./strace-static-x86_64: Process 21464 attached
[pid 21464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21464] setpgid(0, 0)               = 0
[pid 21464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21464] write(3, "1000", 4)         = 4
[pid 21464] close(3)                    = 0
[pid 21464] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21464] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21464] write(4, "78", 2)           = 2
[pid 21464] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21464] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21464] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21464] exit_group(0)               = ?
[pid 21464] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21464, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21465 attached
, child_tidptr=0x555555af35d0) = 21465
[pid 21465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21465] setpgid(0, 0)               = 0
[pid 21465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21465] write(3, "1000", 4)         = 4
[pid 21465] close(3)                    = 0
[pid 21465] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21465] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21465] write(4, "78", 2)           = 2
[pid 21465] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21465] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21465] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21465] exit_group(0)               = ?
[pid 21465] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21465, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21466
./strace-static-x86_64: Process 21466 attached
[pid 21466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21466] setpgid(0, 0)               = 0
[pid 21466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21466] write(3, "1000", 4)         = 4
[pid 21466] close(3)                    = 0
[pid 21466] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21466] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21466] write(4, "78", 2)           = 2
[pid 21466] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21466] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21466] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21466] exit_group(0)               = ?
[pid 21466] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21466, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21467 attached
, child_tidptr=0x555555af35d0) = 21467
[pid 21467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21467] setpgid(0, 0)               = 0
[pid 21467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21467] write(3, "1000", 4)         = 4
[pid 21467] close(3)                    = 0
[pid 21467] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21467] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21467] write(4, "78", 2)           = 2
[pid 21467] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21467] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21467] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21467] exit_group(0)               = ?
[pid 21467] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21467, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21468 attached
, child_tidptr=0x555555af35d0) = 21468
[pid 21468] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21468] setpgid(0, 0)               = 0
[pid 21468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21468] write(3, "1000", 4)         = 4
[pid 21468] close(3)                    = 0
[pid 21468] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21468] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21468] write(4, "78", 2)           = 2
[pid 21468] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21468] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21468] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21468] exit_group(0)               = ?
[pid 21468] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21468, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21469
./strace-static-x86_64: Process 21469 attached
[pid 21469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21469] setpgid(0, 0)               = 0
[pid 21469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21469] write(3, "1000", 4)         = 4
[pid 21469] close(3)                    = 0
[pid 21469] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21469] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21469] write(4, "78", 2)           = 2
[pid 21469] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21469] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21469] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21469] exit_group(0)               = ?
[pid 21469] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21469, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21470 attached
, child_tidptr=0x555555af35d0) = 21470
[pid 21470] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21470] setpgid(0, 0)               = 0
[pid 21470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21470] write(3, "1000", 4)         = 4
[pid 21470] close(3)                    = 0
[pid 21470] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21470] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21470] write(4, "78", 2)           = 2
[pid 21470] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21470] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21470] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21470] exit_group(0)               = ?
[pid 21470] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21470, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21471 attached
, child_tidptr=0x555555af35d0) = 21471
[pid 21471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21471] setpgid(0, 0)               = 0
[pid 21471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21471] write(3, "1000", 4)         = 4
[pid 21471] close(3)                    = 0
[pid 21471] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21471] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21471] write(4, "78", 2)           = 2
[pid 21471] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21471] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21471] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21471] exit_group(0)               = ?
[pid 21471] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21471, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21472
./strace-static-x86_64: Process 21472 attached
[pid 21472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21472] setpgid(0, 0)               = 0
[pid 21472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21472] write(3, "1000", 4)         = 4
[pid 21472] close(3)                    = 0
[pid 21472] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21472] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21472] write(4, "78", 2)           = 2
[pid 21472] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21472] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21472] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21472] exit_group(0)               = ?
[pid 21472] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21472, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21473 attached
, child_tidptr=0x555555af35d0) = 21473
[pid 21473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21473] setpgid(0, 0)               = 0
[pid 21473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21473] write(3, "1000", 4)         = 4
[pid 21473] close(3)                    = 0
[pid 21473] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21473] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21473] write(4, "78", 2)           = 2
[pid 21473] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21473] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21473] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21473] exit_group(0)               = ?
[pid 21473] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21473, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21474 attached
, child_tidptr=0x555555af35d0) = 21474
[pid 21474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21474] setpgid(0, 0)               = 0
[pid 21474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21474] write(3, "1000", 4)         = 4
[pid 21474] close(3)                    = 0
[pid 21474] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21474] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21474] write(4, "78", 2)           = 2
[pid 21474] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21474] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21474] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21474] exit_group(0)               = ?
[pid 21474] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21474, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21475 attached
, child_tidptr=0x555555af35d0) = 21475
[pid 21475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21475] setpgid(0, 0)               = 0
[pid 21475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21475] write(3, "1000", 4)         = 4
[pid 21475] close(3)                    = 0
[pid 21475] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21475] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21475] write(4, "78", 2)           = 2
[pid 21475] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21475] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21475] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21475] exit_group(0)               = ?
[pid 21475] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21475, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21476 attached
, child_tidptr=0x555555af35d0) = 21476
[pid 21476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21476] setpgid(0, 0)               = 0
[pid 21476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21476] write(3, "1000", 4)         = 4
[pid 21476] close(3)                    = 0
[pid 21476] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21476] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21476] write(4, "78", 2)           = 2
[pid 21476] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21476] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21476] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21476] exit_group(0)               = ?
[pid 21476] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21476, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21477 attached
, child_tidptr=0x555555af35d0) = 21477
[pid 21477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21477] setpgid(0, 0)               = 0
[pid 21477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21477] write(3, "1000", 4)         = 4
[pid 21477] close(3)                    = 0
[pid 21477] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21477] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21477] write(4, "78", 2)           = 2
[pid 21477] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21477] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21477] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21477] exit_group(0)               = ?
[pid 21477] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21477, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21478
./strace-static-x86_64: Process 21478 attached
[pid 21478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21478] setpgid(0, 0)               = 0
[pid 21478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21478] write(3, "1000", 4)         = 4
[pid 21478] close(3)                    = 0
[pid 21478] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21478] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21478] write(4, "78", 2)           = 2
[pid 21478] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21478] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21478] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21478] exit_group(0)               = ?
[pid 21478] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21478, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21479
./strace-static-x86_64: Process 21479 attached
[pid 21479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21479] setpgid(0, 0)               = 0
[pid 21479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21479] write(3, "1000", 4)         = 4
[pid 21479] close(3)                    = 0
[pid 21479] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21479] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21479] write(4, "78", 2)           = 2
[pid 21479] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21479] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21479] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21479] exit_group(0)               = ?
[pid 21479] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21479, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21480
./strace-static-x86_64: Process 21480 attached
[pid 21480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21480] setpgid(0, 0)               = 0
[pid 21480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21480] write(3, "1000", 4)         = 4
[pid 21480] close(3)                    = 0
[pid 21480] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21480] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21480] write(4, "78", 2)           = 2
[pid 21480] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21480] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21480] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21480] exit_group(0)               = ?
[pid 21480] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21480, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21481
./strace-static-x86_64: Process 21481 attached
[pid 21481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21481] setpgid(0, 0)               = 0
[pid 21481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21481] write(3, "1000", 4)         = 4
[pid 21481] close(3)                    = 0
[pid 21481] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21481] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21481] write(4, "78", 2)           = 2
[pid 21481] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21481] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21481] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21481] exit_group(0)               = ?
[pid 21481] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21481, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21482 attached
, child_tidptr=0x555555af35d0) = 21482
[pid 21482] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21482] setpgid(0, 0)               = 0
[pid 21482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21482] write(3, "1000", 4)         = 4
[pid 21482] close(3)                    = 0
[pid 21482] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21482] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21482] write(4, "78", 2)           = 2
[pid 21482] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21482] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21482] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21482] exit_group(0)               = ?
[pid 21482] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21482, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21483 attached
, child_tidptr=0x555555af35d0) = 21483
[pid 21483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21483] setpgid(0, 0)               = 0
[pid 21483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21483] write(3, "1000", 4)         = 4
[pid 21483] close(3)                    = 0
[pid 21483] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21483] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21483] write(4, "78", 2)           = 2
[pid 21483] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21483] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21483] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21483] exit_group(0)               = ?
[pid 21483] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21483, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21484 attached
, child_tidptr=0x555555af35d0) = 21484
[pid 21484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21484] setpgid(0, 0)               = 0
[pid 21484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21484] write(3, "1000", 4)         = 4
[pid 21484] close(3)                    = 0
[pid 21484] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21484] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21484] write(4, "78", 2)           = 2
[pid 21484] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21484] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21484] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21484] exit_group(0)               = ?
[pid 21484] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21484, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21485
./strace-static-x86_64: Process 21485 attached
[pid 21485] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21485] setpgid(0, 0)               = 0
[pid 21485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21485] write(3, "1000", 4)         = 4
[pid 21485] close(3)                    = 0
[pid 21485] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21485] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21485] write(4, "78", 2)           = 2
[pid 21485] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21485] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21485] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21485] exit_group(0)               = ?
[pid 21485] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21485, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21486 attached
, child_tidptr=0x555555af35d0) = 21486
[pid 21486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21486] setpgid(0, 0)               = 0
[pid 21486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21486] write(3, "1000", 4)         = 4
[pid 21486] close(3)                    = 0
[pid 21486] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21486] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21486] write(4, "78", 2)           = 2
[pid 21486] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21486] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21486] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21486] exit_group(0)               = ?
[pid 21486] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21486, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21487 attached
, child_tidptr=0x555555af35d0) = 21487
[pid 21487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21487] setpgid(0, 0)               = 0
[pid 21487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21487] write(3, "1000", 4)         = 4
[pid 21487] close(3)                    = 0
[pid 21487] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21487] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21487] write(4, "78", 2)           = 2
[pid 21487] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21487] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21487] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21487] exit_group(0)               = ?
[pid 21487] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21487, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21488 attached
, child_tidptr=0x555555af35d0) = 21488
[pid 21488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21488] setpgid(0, 0)               = 0
[pid 21488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21488] write(3, "1000", 4)         = 4
[pid 21488] close(3)                    = 0
[pid 21488] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21488] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21488] write(4, "78", 2)           = 2
[pid 21488] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21488] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21488] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21488] exit_group(0)               = ?
[pid 21488] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21488, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21489 attached
, child_tidptr=0x555555af35d0) = 21489
[pid 21489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21489] setpgid(0, 0)               = 0
[pid 21489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21489] write(3, "1000", 4)         = 4
[pid 21489] close(3)                    = 0
[pid 21489] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21489] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21489] write(4, "78", 2)           = 2
[pid 21489] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21489] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21489] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21489] exit_group(0)               = ?
[pid 21489] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21489, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21490 attached
, child_tidptr=0x555555af35d0) = 21490
[pid 21490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21490] setpgid(0, 0)               = 0
[pid 21490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21490] write(3, "1000", 4)         = 4
[pid 21490] close(3)                    = 0
[pid 21490] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21490] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21490] write(4, "78", 2)           = 2
[pid 21490] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21490] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21490] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21490] exit_group(0)               = ?
[pid 21490] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21490, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21491 attached
, child_tidptr=0x555555af35d0) = 21491
[pid 21491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21491] setpgid(0, 0)               = 0
[pid 21491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21491] write(3, "1000", 4)         = 4
[pid 21491] close(3)                    = 0
[pid 21491] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21491] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21491] write(4, "78", 2)           = 2
[pid 21491] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21491] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21491] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21491] exit_group(0)               = ?
[pid 21491] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21491, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21492 attached
, child_tidptr=0x555555af35d0) = 21492
[pid 21492] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21492] setpgid(0, 0)               = 0
[pid 21492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21492] write(3, "1000", 4)         = 4
[pid 21492] close(3)                    = 0
[pid 21492] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21492] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21492] write(4, "78", 2)           = 2
[pid 21492] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21492] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21492] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21492] exit_group(0)               = ?
[pid 21492] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21492, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21493 attached
, child_tidptr=0x555555af35d0) = 21493
[pid 21493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21493] setpgid(0, 0)               = 0
[pid 21493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21493] write(3, "1000", 4)         = 4
[pid 21493] close(3)                    = 0
[pid 21493] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21493] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21493] write(4, "78", 2)           = 2
[pid 21493] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21493] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21493] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21493] exit_group(0)               = ?
[pid 21493] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21493, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21494 attached
, child_tidptr=0x555555af35d0) = 21494
[pid 21494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21494] setpgid(0, 0)               = 0
[pid 21494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21494] write(3, "1000", 4)         = 4
[pid 21494] close(3)                    = 0
[pid 21494] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21494] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21494] write(4, "78", 2)           = 2
[pid 21494] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21494] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21494] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21494] exit_group(0)               = ?
[pid 21494] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21494, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21495 attached
, child_tidptr=0x555555af35d0) = 21495
[pid 21495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21495] setpgid(0, 0)               = 0
[pid 21495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21495] write(3, "1000", 4)         = 4
[pid 21495] close(3)                    = 0
[pid 21495] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21495] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21495] write(4, "78", 2)           = 2
[pid 21495] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21495] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21495] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21495] exit_group(0)               = ?
[pid 21495] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21495, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21496 attached
, child_tidptr=0x555555af35d0) = 21496
[pid 21496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21496] setpgid(0, 0)               = 0
[pid 21496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21496] write(3, "1000", 4)         = 4
[pid 21496] close(3)                    = 0
[pid 21496] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21496] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21496] write(4, "78", 2)           = 2
[pid 21496] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21496] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21496] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21496] exit_group(0)               = ?
[pid 21496] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21496, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21497 attached
, child_tidptr=0x555555af35d0) = 21497
[pid 21497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21497] setpgid(0, 0)               = 0
[pid 21497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21497] write(3, "1000", 4)         = 4
[pid 21497] close(3)                    = 0
[pid 21497] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21497] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21497] write(4, "78", 2)           = 2
[pid 21497] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21497] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21497] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21497] exit_group(0)               = ?
[pid 21497] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21497, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21498 attached
, child_tidptr=0x555555af35d0) = 21498
[pid 21498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21498] setpgid(0, 0)               = 0
[pid 21498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21498] write(3, "1000", 4)         = 4
[pid 21498] close(3)                    = 0
[pid 21498] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21498] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21498] write(4, "78", 2)           = 2
[pid 21498] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21498] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21498] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21498] exit_group(0)               = ?
[pid 21498] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21498, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21499 attached
, child_tidptr=0x555555af35d0) = 21499
[pid 21499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21499] setpgid(0, 0)               = 0
[pid 21499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21499] write(3, "1000", 4)         = 4
[pid 21499] close(3)                    = 0
[pid 21499] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21499] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21499] write(4, "78", 2)           = 2
[pid 21499] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21499] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21499] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21499] exit_group(0)               = ?
[pid 21499] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21499, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21500 attached
, child_tidptr=0x555555af35d0) = 21500
[pid 21500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21500] setpgid(0, 0)               = 0
[pid 21500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21500] write(3, "1000", 4)         = 4
[pid 21500] close(3)                    = 0
[pid 21500] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21500] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21500] write(4, "78", 2)           = 2
[pid 21500] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21500] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21500] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21500] exit_group(0)               = ?
[pid 21500] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21500, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21501 attached
, child_tidptr=0x555555af35d0) = 21501
[pid 21501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21501] setpgid(0, 0)               = 0
[pid 21501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21501] write(3, "1000", 4)         = 4
[pid 21501] close(3)                    = 0
[pid 21501] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21501] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21501] write(4, "78", 2)           = 2
[pid 21501] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21501] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21501] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21501] exit_group(0)               = ?
[pid 21501] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21501, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21502 attached
, child_tidptr=0x555555af35d0) = 21502
[pid 21502] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21502] setpgid(0, 0)               = 0
[pid 21502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21502] write(3, "1000", 4)         = 4
[pid 21502] close(3)                    = 0
[pid 21502] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21502] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21502] write(4, "78", 2)           = 2
[pid 21502] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21502] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21502] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21502] exit_group(0)               = ?
[pid 21502] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21502, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21503 attached
, child_tidptr=0x555555af35d0) = 21503
[pid 21503] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21503] setpgid(0, 0)               = 0
[pid 21503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21503] write(3, "1000", 4)         = 4
[pid 21503] close(3)                    = 0
[pid 21503] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21503] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21503] write(4, "78", 2)           = 2
[pid 21503] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21503] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21503] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21503] exit_group(0)               = ?
[pid 21503] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21503, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21504 attached
, child_tidptr=0x555555af35d0) = 21504
[pid 21504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21504] setpgid(0, 0)               = 0
[pid 21504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21504] write(3, "1000", 4)         = 4
[pid 21504] close(3)                    = 0
[pid 21504] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21504] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21504] write(4, "78", 2)           = 2
[pid 21504] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21504] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21504] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21504] exit_group(0)               = ?
[pid 21504] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21504, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21505 attached
, child_tidptr=0x555555af35d0) = 21505
[pid 21505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21505] setpgid(0, 0)               = 0
[pid 21505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21505] write(3, "1000", 4)         = 4
[pid 21505] close(3)                    = 0
[pid 21505] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21505] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21505] write(4, "78", 2)           = 2
[pid 21505] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21505] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21505] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21505] exit_group(0)               = ?
[pid 21505] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21505, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21506 attached
, child_tidptr=0x555555af35d0) = 21506
[pid 21506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21506] setpgid(0, 0)               = 0
[pid 21506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21506] write(3, "1000", 4)         = 4
[pid 21506] close(3)                    = 0
[pid 21506] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21506] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21506] write(4, "78", 2)           = 2
[pid 21506] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21506] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21506] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21506] exit_group(0)               = ?
[pid 21506] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21506, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21507 attached
, child_tidptr=0x555555af35d0) = 21507
[pid 21507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21507] setpgid(0, 0)               = 0
[pid 21507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21507] write(3, "1000", 4)         = 4
[pid 21507] close(3)                    = 0
[pid 21507] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21507] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21507] write(4, "78", 2)           = 2
[pid 21507] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21507] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21507] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21507] exit_group(0)               = ?
[pid 21507] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21507, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21508 attached
, child_tidptr=0x555555af35d0) = 21508
[pid 21508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21508] setpgid(0, 0)               = 0
[pid 21508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21508] write(3, "1000", 4)         = 4
[pid 21508] close(3)                    = 0
[pid 21508] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21508] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21508] write(4, "78", 2)           = 2
[pid 21508] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21508] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21508] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21508] exit_group(0)               = ?
[pid 21508] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21508, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21509
./strace-static-x86_64: Process 21509 attached
[pid 21509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21509] setpgid(0, 0)               = 0
[pid 21509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21509] write(3, "1000", 4)         = 4
[pid 21509] close(3)                    = 0
[pid 21509] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21509] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21509] write(4, "78", 2)           = 2
[pid 21509] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21509] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21509] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21509] exit_group(0)               = ?
[pid 21509] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21509, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21510 attached
, child_tidptr=0x555555af35d0) = 21510
[pid 21510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21510] setpgid(0, 0)               = 0
[pid 21510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21510] write(3, "1000", 4)         = 4
[pid 21510] close(3)                    = 0
[pid 21510] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21510] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21510] write(4, "78", 2)           = 2
[pid 21510] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21510] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21510] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21510] exit_group(0)               = ?
[pid 21510] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21510, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21511 attached
, child_tidptr=0x555555af35d0) = 21511
[pid 21511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21511] setpgid(0, 0)               = 0
[pid 21511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21511] write(3, "1000", 4)         = 4
[pid 21511] close(3)                    = 0
[pid 21511] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21511] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21511] write(4, "78", 2)           = 2
[pid 21511] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21511] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21511] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21511] exit_group(0)               = ?
[pid 21511] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21511, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21512 attached
, child_tidptr=0x555555af35d0) = 21512
[pid 21512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21512] setpgid(0, 0)               = 0
[pid 21512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21512] write(3, "1000", 4)         = 4
[pid 21512] close(3)                    = 0
[pid 21512] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21512] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21512] write(4, "78", 2)           = 2
[pid 21512] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21512] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21512] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21512] exit_group(0)               = ?
[pid 21512] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21512, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21513
./strace-static-x86_64: Process 21513 attached
[pid 21513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21513] setpgid(0, 0)               = 0
[pid 21513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21513] write(3, "1000", 4)         = 4
[pid 21513] close(3)                    = 0
[pid 21513] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21513] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21513] write(4, "78", 2)           = 2
[pid 21513] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21513] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21513] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21513] exit_group(0)               = ?
[pid 21513] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21513, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21514
./strace-static-x86_64: Process 21514 attached
[pid 21514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21514] setpgid(0, 0)               = 0
[pid 21514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21514] write(3, "1000", 4)         = 4
[pid 21514] close(3)                    = 0
[pid 21514] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21514] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21514] write(4, "78", 2)           = 2
[pid 21514] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21514] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21514] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21514] exit_group(0)               = ?
[pid 21514] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21514, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21515 attached
, child_tidptr=0x555555af35d0) = 21515
[pid 21515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21515] setpgid(0, 0)               = 0
[pid 21515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21515] write(3, "1000", 4)         = 4
[pid 21515] close(3)                    = 0
[pid 21515] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21515] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21515] write(4, "78", 2)           = 2
[pid 21515] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21515] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21515] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21515] exit_group(0)               = ?
[pid 21515] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21515, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21516
./strace-static-x86_64: Process 21516 attached
[pid 21516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21516] setpgid(0, 0)               = 0
[pid 21516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21516] write(3, "1000", 4)         = 4
[pid 21516] close(3)                    = 0
[pid 21516] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21516] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21516] write(4, "78", 2)           = 2
[pid 21516] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21516] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21516] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21516] exit_group(0)               = ?
[pid 21516] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21516, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21517 attached
, child_tidptr=0x555555af35d0) = 21517
[pid 21517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21517] setpgid(0, 0)               = 0
[pid 21517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21517] write(3, "1000", 4)         = 4
[pid 21517] close(3)                    = 0
[pid 21517] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21517] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21517] write(4, "78", 2)           = 2
[pid 21517] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21517] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21517] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21517] exit_group(0)               = ?
[pid 21517] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21517, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21518 attached
, child_tidptr=0x555555af35d0) = 21518
[pid 21518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21518] setpgid(0, 0)               = 0
[pid 21518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21518] write(3, "1000", 4)         = 4
[pid 21518] close(3)                    = 0
[pid 21518] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21518] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21518] write(4, "78", 2)           = 2
[pid 21518] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21518] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21518] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21518] exit_group(0)               = ?
[pid 21518] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21518, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21519 attached
, child_tidptr=0x555555af35d0) = 21519
[pid 21519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21519] setpgid(0, 0)               = 0
[pid 21519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21519] write(3, "1000", 4)         = 4
[pid 21519] close(3)                    = 0
[pid 21519] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21519] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21519] write(4, "78", 2)           = 2
[pid 21519] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21519] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21519] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21519] exit_group(0)               = ?
[pid 21519] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21519, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21520 attached
, child_tidptr=0x555555af35d0) = 21520
[pid 21520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21520] setpgid(0, 0)               = 0
[pid 21520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21520] write(3, "1000", 4)         = 4
[pid 21520] close(3)                    = 0
[pid 21520] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21520] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21520] write(4, "78", 2)           = 2
[pid 21520] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21520] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21520] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21520] exit_group(0)               = ?
[pid 21520] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21520, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21521 attached
, child_tidptr=0x555555af35d0) = 21521
[pid 21521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21521] setpgid(0, 0)               = 0
[pid 21521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21521] write(3, "1000", 4)         = 4
[pid 21521] close(3)                    = 0
[pid 21521] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21521] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21521] write(4, "78", 2)           = 2
[pid 21521] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21521] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21521] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21521] exit_group(0)               = ?
[pid 21521] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21521, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21522
./strace-static-x86_64: Process 21522 attached
[pid 21522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21522] setpgid(0, 0)               = 0
[pid 21522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21522] write(3, "1000", 4)         = 4
[pid 21522] close(3)                    = 0
[pid 21522] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21522] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21522] write(4, "78", 2)           = 2
[pid 21522] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21522] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21522] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21522] exit_group(0)               = ?
[pid 21522] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21522, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21523 attached
, child_tidptr=0x555555af35d0) = 21523
[pid 21523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21523] setpgid(0, 0)               = 0
[pid 21523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21523] write(3, "1000", 4)         = 4
[pid 21523] close(3)                    = 0
[pid 21523] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21523] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21523] write(4, "78", 2)           = 2
[pid 21523] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21523] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21523] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21523] exit_group(0)               = ?
[pid 21523] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21523, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21524 attached
, child_tidptr=0x555555af35d0) = 21524
[pid 21524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21524] setpgid(0, 0)               = 0
[pid 21524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21524] write(3, "1000", 4)         = 4
[pid 21524] close(3)                    = 0
[pid 21524] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21524] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21524] write(4, "78", 2)           = 2
[pid 21524] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21524] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21524] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21524] exit_group(0)               = ?
[pid 21524] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21524, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21525 attached
, child_tidptr=0x555555af35d0) = 21525
[pid 21525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21525] setpgid(0, 0)               = 0
[pid 21525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21525] write(3, "1000", 4)         = 4
[pid 21525] close(3)                    = 0
[pid 21525] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21525] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21525] write(4, "78", 2)           = 2
[pid 21525] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21525] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21525] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21525] exit_group(0)               = ?
[pid 21525] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21525, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21526 attached
, child_tidptr=0x555555af35d0) = 21526
[pid 21526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21526] setpgid(0, 0)               = 0
[pid 21526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21526] write(3, "1000", 4)         = 4
[pid 21526] close(3)                    = 0
[pid 21526] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21526] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21526] write(4, "78", 2)           = 2
[pid 21526] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21526] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21526] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21526] exit_group(0)               = ?
[pid 21526] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21526, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21527 attached
, child_tidptr=0x555555af35d0) = 21527
[pid 21527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21527] setpgid(0, 0)               = 0
[pid 21527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21527] write(3, "1000", 4)         = 4
[pid 21527] close(3)                    = 0
[pid 21527] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21527] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21527] write(4, "78", 2)           = 2
[pid 21527] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21527] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21527] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21527] exit_group(0)               = ?
[pid 21527] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21527, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21528 attached
, child_tidptr=0x555555af35d0) = 21528
[pid 21528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21528] setpgid(0, 0)               = 0
[pid 21528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21528] write(3, "1000", 4)         = 4
[pid 21528] close(3)                    = 0
[pid 21528] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21528] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21528] write(4, "78", 2)           = 2
[pid 21528] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21528] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21528] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21528] exit_group(0)               = ?
[pid 21528] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21528, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21529 attached
, child_tidptr=0x555555af35d0) = 21529
[pid 21529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21529] setpgid(0, 0)               = 0
[pid 21529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21529] write(3, "1000", 4)         = 4
[pid 21529] close(3)                    = 0
[pid 21529] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21529] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21529] write(4, "78", 2)           = 2
[pid 21529] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21529] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21529] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21529] exit_group(0)               = ?
[pid 21529] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21529, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21530 attached
, child_tidptr=0x555555af35d0) = 21530
[pid 21530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21530] setpgid(0, 0)               = 0
[pid 21530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21530] write(3, "1000", 4)         = 4
[pid 21530] close(3)                    = 0
[pid 21530] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21530] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21530] write(4, "78", 2)           = 2
[pid 21530] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21530] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21530] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21530] exit_group(0)               = ?
[pid 21530] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21530, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21531 attached
, child_tidptr=0x555555af35d0) = 21531
[pid 21531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21531] setpgid(0, 0)               = 0
[pid 21531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21531] write(3, "1000", 4)         = 4
[pid 21531] close(3)                    = 0
[pid 21531] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21531] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21531] write(4, "78", 2)           = 2
[pid 21531] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21531] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21531] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21531] exit_group(0)               = ?
[pid 21531] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21531, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21532 attached
, child_tidptr=0x555555af35d0) = 21532
[pid 21532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21532] setpgid(0, 0)               = 0
[pid 21532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21532] write(3, "1000", 4)         = 4
[pid 21532] close(3)                    = 0
[pid 21532] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21532] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21532] write(4, "78", 2)           = 2
[pid 21532] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21532] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21532] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21532] exit_group(0)               = ?
[pid 21532] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21532, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21533
./strace-static-x86_64: Process 21533 attached
[pid 21533] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21533] setpgid(0, 0)               = 0
[pid 21533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21533] write(3, "1000", 4)         = 4
[pid 21533] close(3)                    = 0
[pid 21533] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21533] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21533] write(4, "78", 2)           = 2
[pid 21533] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21533] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21533] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21533] exit_group(0)               = ?
[pid 21533] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21533, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21534
./strace-static-x86_64: Process 21534 attached
[pid 21534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21534] setpgid(0, 0)               = 0
[pid 21534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21534] write(3, "1000", 4)         = 4
[pid 21534] close(3)                    = 0
[pid 21534] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21534] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21534] write(4, "78", 2)           = 2
[pid 21534] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21534] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21534] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21534] exit_group(0)               = ?
[pid 21534] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21534, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21535 attached
, child_tidptr=0x555555af35d0) = 21535
[pid 21535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21535] setpgid(0, 0)               = 0
[pid 21535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21535] write(3, "1000", 4)         = 4
[pid 21535] close(3)                    = 0
[pid 21535] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21535] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21535] write(4, "78", 2)           = 2
[pid 21535] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21535] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21535] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21535] exit_group(0)               = ?
[pid 21535] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21535, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21536 attached
, child_tidptr=0x555555af35d0) = 21536
[pid 21536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21536] setpgid(0, 0)               = 0
[pid 21536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21536] write(3, "1000", 4)         = 4
[pid 21536] close(3)                    = 0
[pid 21536] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21536] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21536] write(4, "78", 2)           = 2
[pid 21536] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21536] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21536] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21536] exit_group(0)               = ?
[pid 21536] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21536, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21537 attached
, child_tidptr=0x555555af35d0) = 21537
[pid 21537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21537] setpgid(0, 0)               = 0
[pid 21537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21537] write(3, "1000", 4)         = 4
[pid 21537] close(3)                    = 0
[pid 21537] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21537] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21537] write(4, "78", 2)           = 2
[pid 21537] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21537] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21537] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21537] exit_group(0)               = ?
[pid 21537] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21537, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21538 attached
, child_tidptr=0x555555af35d0) = 21538
[pid 21538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21538] setpgid(0, 0)               = 0
[pid 21538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21538] write(3, "1000", 4)         = 4
[pid 21538] close(3)                    = 0
[pid 21538] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21538] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21538] write(4, "78", 2)           = 2
[pid 21538] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21538] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21538] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21538] exit_group(0)               = ?
[pid 21538] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21538, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21539 attached
, child_tidptr=0x555555af35d0) = 21539
[pid 21539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21539] setpgid(0, 0)               = 0
[pid 21539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21539] write(3, "1000", 4)         = 4
[pid 21539] close(3)                    = 0
[pid 21539] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21539] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21539] write(4, "78", 2)           = 2
[pid 21539] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21539] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21539] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21539] exit_group(0)               = ?
[pid 21539] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21539, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21540 attached
, child_tidptr=0x555555af35d0) = 21540
[pid 21540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21540] setpgid(0, 0)               = 0
[pid 21540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21540] write(3, "1000", 4)         = 4
[pid 21540] close(3)                    = 0
[pid 21540] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21540] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21540] write(4, "78", 2)           = 2
[pid 21540] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21540] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21540] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21540] exit_group(0)               = ?
[pid 21540] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21540, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21541 attached
, child_tidptr=0x555555af35d0) = 21541
[pid 21541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21541] setpgid(0, 0)               = 0
[pid 21541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21541] write(3, "1000", 4)         = 4
[pid 21541] close(3)                    = 0
[pid 21541] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21541] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21541] write(4, "78", 2)           = 2
[pid 21541] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21541] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21541] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21541] exit_group(0)               = ?
[pid 21541] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21541, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21542 attached
, child_tidptr=0x555555af35d0) = 21542
[pid 21542] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21542] setpgid(0, 0)               = 0
[pid 21542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21542] write(3, "1000", 4)         = 4
[pid 21542] close(3)                    = 0
[pid 21542] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21542] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21542] write(4, "78", 2)           = 2
[pid 21542] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21542] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21542] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21542] exit_group(0)               = ?
[pid 21542] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21542, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21543
./strace-static-x86_64: Process 21543 attached
[pid 21543] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21543] setpgid(0, 0)               = 0
[pid 21543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21543] write(3, "1000", 4)         = 4
[pid 21543] close(3)                    = 0
[pid 21543] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21543] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21543] write(4, "78", 2)           = 2
[pid 21543] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21543] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21543] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21543] exit_group(0)               = ?
[pid 21543] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21543, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21544 attached
, child_tidptr=0x555555af35d0) = 21544
[pid 21544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21544] setpgid(0, 0)               = 0
[pid 21544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21544] write(3, "1000", 4)         = 4
[pid 21544] close(3)                    = 0
[pid 21544] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21544] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21544] write(4, "78", 2)           = 2
[pid 21544] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21544] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21544] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21544] exit_group(0)               = ?
[pid 21544] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21544, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21545 attached
, child_tidptr=0x555555af35d0) = 21545
[pid 21545] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21545] setpgid(0, 0)               = 0
[pid 21545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21545] write(3, "1000", 4)         = 4
[pid 21545] close(3)                    = 0
[pid 21545] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21545] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21545] write(4, "78", 2)           = 2
[pid 21545] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21545] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21545] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21545] exit_group(0)               = ?
[pid 21545] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21545, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21546 attached
, child_tidptr=0x555555af35d0) = 21546
[pid 21546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21546] setpgid(0, 0)               = 0
[pid 21546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21546] write(3, "1000", 4)         = 4
[pid 21546] close(3)                    = 0
[pid 21546] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21546] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21546] write(4, "78", 2)           = 2
[pid 21546] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21546] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21546] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21546] exit_group(0)               = ?
[pid 21546] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21546, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21547 attached
, child_tidptr=0x555555af35d0) = 21547
[pid 21547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21547] setpgid(0, 0)               = 0
[pid 21547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21547] write(3, "1000", 4)         = 4
[pid 21547] close(3)                    = 0
[pid 21547] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21547] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21547] write(4, "78", 2)           = 2
[pid 21547] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21547] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21547] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21547] exit_group(0)               = ?
[pid 21547] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21547, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21548
./strace-static-x86_64: Process 21548 attached
[pid 21548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21548] setpgid(0, 0)               = 0
[pid 21548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21548] write(3, "1000", 4)         = 4
[pid 21548] close(3)                    = 0
[pid 21548] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21548] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21548] write(4, "78", 2)           = 2
[pid 21548] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21548] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21548] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21548] exit_group(0)               = ?
[pid 21548] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21548, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21549 attached
, child_tidptr=0x555555af35d0) = 21549
[pid 21549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21549] setpgid(0, 0)               = 0
[pid 21549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21549] write(3, "1000", 4)         = 4
[pid 21549] close(3)                    = 0
[pid 21549] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21549] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21549] write(4, "78", 2)           = 2
[pid 21549] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21549] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21549] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21549] exit_group(0)               = ?
[pid 21549] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21549, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21550
./strace-static-x86_64: Process 21550 attached
[pid 21550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21550] setpgid(0, 0)               = 0
[pid 21550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21550] write(3, "1000", 4)         = 4
[pid 21550] close(3)                    = 0
[pid 21550] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21550] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21550] write(4, "78", 2)           = 2
[pid 21550] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21550] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21550] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21550] exit_group(0)               = ?
[pid 21550] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21550, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21551 attached
, child_tidptr=0x555555af35d0) = 21551
[pid 21551] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21551] setpgid(0, 0)               = 0
[pid 21551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21551] write(3, "1000", 4)         = 4
[pid 21551] close(3)                    = 0
[pid 21551] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21551] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21551] write(4, "78", 2)           = 2
[pid 21551] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21551] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21551] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21551] exit_group(0)               = ?
[pid 21551] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21551, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21552 attached
, child_tidptr=0x555555af35d0) = 21552
[pid 21552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21552] setpgid(0, 0)               = 0
[pid 21552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21552] write(3, "1000", 4)         = 4
[pid 21552] close(3)                    = 0
[pid 21552] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21552] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21552] write(4, "78", 2)           = 2
[pid 21552] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21552] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21552] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21552] exit_group(0)               = ?
[pid 21552] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21552, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21553 attached
, child_tidptr=0x555555af35d0) = 21553
[pid 21553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21553] setpgid(0, 0)               = 0
[pid 21553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21553] write(3, "1000", 4)         = 4
[pid 21553] close(3)                    = 0
[pid 21553] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21553] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21553] write(4, "78", 2)           = 2
[pid 21553] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21553] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21553] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21553] exit_group(0)               = ?
[pid 21553] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21553, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21554 attached
, child_tidptr=0x555555af35d0) = 21554
[pid 21554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21554] setpgid(0, 0)               = 0
[pid 21554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21554] write(3, "1000", 4)         = 4
[pid 21554] close(3)                    = 0
[pid 21554] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21554] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21554] write(4, "78", 2)           = 2
[pid 21554] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21554] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21554] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21554] exit_group(0)               = ?
[pid 21554] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21554, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21555 attached
, child_tidptr=0x555555af35d0) = 21555
[pid 21555] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21555] setpgid(0, 0)               = 0
[pid 21555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21555] write(3, "1000", 4)         = 4
[pid 21555] close(3)                    = 0
[pid 21555] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21555] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21555] write(4, "78", 2)           = 2
[pid 21555] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21555] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21555] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21555] exit_group(0)               = ?
[pid 21555] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21555, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21556 attached
, child_tidptr=0x555555af35d0) = 21556
[pid 21556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21556] setpgid(0, 0)               = 0
[pid 21556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21556] write(3, "1000", 4)         = 4
[pid 21556] close(3)                    = 0
[pid 21556] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21556] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21556] write(4, "78", 2)           = 2
[pid 21556] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21556] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21556] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21556] exit_group(0)               = ?
[pid 21556] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21556, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21557 attached
, child_tidptr=0x555555af35d0) = 21557
[pid 21557] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21557] setpgid(0, 0)               = 0
[pid 21557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21557] write(3, "1000", 4)         = 4
[pid 21557] close(3)                    = 0
[pid 21557] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21557] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21557] write(4, "78", 2)           = 2
[pid 21557] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21557] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21557] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21557] exit_group(0)               = ?
[pid 21557] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21557, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21558 attached
, child_tidptr=0x555555af35d0) = 21558
[pid 21558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21558] setpgid(0, 0)               = 0
[pid 21558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21558] write(3, "1000", 4)         = 4
[pid 21558] close(3)                    = 0
[pid 21558] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21558] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21558] write(4, "78", 2)           = 2
[pid 21558] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21558] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21558] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21558] exit_group(0)               = ?
[pid 21558] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21558, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21559
./strace-static-x86_64: Process 21559 attached
[pid 21559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21559] setpgid(0, 0)               = 0
[pid 21559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21559] write(3, "1000", 4)         = 4
[pid 21559] close(3)                    = 0
[pid 21559] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21559] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21559] write(4, "78", 2)           = 2
[pid 21559] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21559] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21559] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21559] exit_group(0)               = ?
[pid 21559] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21559, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21560 attached
, child_tidptr=0x555555af35d0) = 21560
[pid 21560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21560] setpgid(0, 0)               = 0
[pid 21560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21560] write(3, "1000", 4)         = 4
[pid 21560] close(3)                    = 0
[pid 21560] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21560] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21560] write(4, "78", 2)           = 2
[pid 21560] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21560] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21560] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21560] exit_group(0)               = ?
[pid 21560] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21560, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21561 attached
, child_tidptr=0x555555af35d0) = 21561
[pid 21561] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21561] setpgid(0, 0)               = 0
[pid 21561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21561] write(3, "1000", 4)         = 4
[pid 21561] close(3)                    = 0
[pid 21561] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21561] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21561] write(4, "78", 2)           = 2
[pid 21561] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21561] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21561] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21561] exit_group(0)               = ?
[pid 21561] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21561, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21562 attached
, child_tidptr=0x555555af35d0) = 21562
[pid 21562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21562] setpgid(0, 0)               = 0
[pid 21562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21562] write(3, "1000", 4)         = 4
[pid 21562] close(3)                    = 0
[pid 21562] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21562] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21562] write(4, "78", 2)           = 2
[pid 21562] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21562] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21562] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21562] exit_group(0)               = ?
[pid 21562] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21562, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21563 attached
, child_tidptr=0x555555af35d0) = 21563
[pid 21563] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21563] setpgid(0, 0)               = 0
[pid 21563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21563] write(3, "1000", 4)         = 4
[pid 21563] close(3)                    = 0
[pid 21563] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21563] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21563] write(4, "78", 2)           = 2
[pid 21563] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21563] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21563] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21563] exit_group(0)               = ?
[pid 21563] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21563, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21564
./strace-static-x86_64: Process 21564 attached
[pid 21564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21564] setpgid(0, 0)               = 0
[pid 21564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21564] write(3, "1000", 4)         = 4
[pid 21564] close(3)                    = 0
[pid 21564] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21564] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21564] write(4, "78", 2)           = 2
[pid 21564] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21564] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21564] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21564] exit_group(0)               = ?
[pid 21564] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21564, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21565 attached
, child_tidptr=0x555555af35d0) = 21565
[pid 21565] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21565] setpgid(0, 0)               = 0
[pid 21565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21565] write(3, "1000", 4)         = 4
[pid 21565] close(3)                    = 0
[pid 21565] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21565] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21565] write(4, "78", 2)           = 2
[pid 21565] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21565] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21565] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21565] exit_group(0)               = ?
[pid 21565] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21565, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21566 attached
, child_tidptr=0x555555af35d0) = 21566
[pid 21566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21566] setpgid(0, 0)               = 0
[pid 21566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21566] write(3, "1000", 4)         = 4
[pid 21566] close(3)                    = 0
[pid 21566] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21566] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21566] write(4, "78", 2)           = 2
[pid 21566] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21566] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21566] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21566] exit_group(0)               = ?
[pid 21566] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21566, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21567 attached
, child_tidptr=0x555555af35d0) = 21567
[pid 21567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21567] setpgid(0, 0)               = 0
[pid 21567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21567] write(3, "1000", 4)         = 4
[pid 21567] close(3)                    = 0
[pid 21567] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21567] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21567] write(4, "78", 2)           = 2
[pid 21567] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21567] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21567] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21567] exit_group(0)               = ?
[pid 21567] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21567, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21568 attached
, child_tidptr=0x555555af35d0) = 21568
[pid 21568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21568] setpgid(0, 0)               = 0
[pid 21568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21568] write(3, "1000", 4)         = 4
[pid 21568] close(3)                    = 0
[pid 21568] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21568] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21568] write(4, "78", 2)           = 2
[pid 21568] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21568] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21568] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21568] exit_group(0)               = ?
[pid 21568] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21568, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21569 attached
, child_tidptr=0x555555af35d0) = 21569
[pid 21569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21569] setpgid(0, 0)               = 0
[pid 21569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21569] write(3, "1000", 4)         = 4
[pid 21569] close(3)                    = 0
[pid 21569] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21569] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21569] write(4, "78", 2)           = 2
[pid 21569] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21569] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21569] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21569] exit_group(0)               = ?
[pid 21569] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21569, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21570 attached
, child_tidptr=0x555555af35d0) = 21570
[pid 21570] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21570] setpgid(0, 0)               = 0
[pid 21570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21570] write(3, "1000", 4)         = 4
[pid 21570] close(3)                    = 0
[pid 21570] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21570] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21570] write(4, "78", 2)           = 2
[pid 21570] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21570] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21570] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21570] exit_group(0)               = ?
[pid 21570] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21570, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21571
./strace-static-x86_64: Process 21571 attached
[pid 21571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21571] setpgid(0, 0)               = 0
[pid 21571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21571] write(3, "1000", 4)         = 4
[pid 21571] close(3)                    = 0
[pid 21571] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21571] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21571] write(4, "78", 2)           = 2
[pid 21571] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21571] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21571] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21571] exit_group(0)               = ?
[pid 21571] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21571, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21572
./strace-static-x86_64: Process 21572 attached
[pid 21572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21572] setpgid(0, 0)               = 0
[pid 21572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21572] write(3, "1000", 4)         = 4
[pid 21572] close(3)                    = 0
[pid 21572] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21572] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21572] write(4, "78", 2)           = 2
[pid 21572] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21572] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21572] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21572] exit_group(0)               = ?
[pid 21572] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21572, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21573 attached
, child_tidptr=0x555555af35d0) = 21573
[pid 21573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21573] setpgid(0, 0)               = 0
[pid 21573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21573] write(3, "1000", 4)         = 4
[pid 21573] close(3)                    = 0
[pid 21573] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21573] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21573] write(4, "78", 2)           = 2
[pid 21573] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21573] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21573] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21573] exit_group(0)               = ?
[pid 21573] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21573, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21574
./strace-static-x86_64: Process 21574 attached
[pid 21574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21574] setpgid(0, 0)               = 0
[pid 21574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21574] write(3, "1000", 4)         = 4
[pid 21574] close(3)                    = 0
[pid 21574] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21574] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21574] write(4, "78", 2)           = 2
[pid 21574] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21574] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21574] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21574] exit_group(0)               = ?
[pid 21574] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21574, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21575
./strace-static-x86_64: Process 21575 attached
[pid 21575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21575] setpgid(0, 0)               = 0
[pid 21575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21575] write(3, "1000", 4)         = 4
[pid 21575] close(3)                    = 0
[pid 21575] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21575] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21575] write(4, "78", 2)           = 2
[pid 21575] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21575] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21575] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21575] exit_group(0)               = ?
[pid 21575] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21575, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21576 attached
, child_tidptr=0x555555af35d0) = 21576
[pid 21576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21576] setpgid(0, 0)               = 0
[pid 21576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21576] write(3, "1000", 4)         = 4
[pid 21576] close(3)                    = 0
[pid 21576] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21576] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21576] write(4, "78", 2)           = 2
[pid 21576] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21576] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21576] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21576] exit_group(0)               = ?
[pid 21576] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21576, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21577 attached
, child_tidptr=0x555555af35d0) = 21577
[pid 21577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21577] setpgid(0, 0)               = 0
[pid 21577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21577] write(3, "1000", 4)         = 4
[pid 21577] close(3)                    = 0
[pid 21577] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21577] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21577] write(4, "78", 2)           = 2
[pid 21577] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21577] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21577] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21577] exit_group(0)               = ?
[pid 21577] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21577, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21578
./strace-static-x86_64: Process 21578 attached
[pid 21578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21578] setpgid(0, 0)               = 0
[pid 21578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21578] write(3, "1000", 4)         = 4
[pid 21578] close(3)                    = 0
[pid 21578] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21578] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21578] write(4, "78", 2)           = 2
[pid 21578] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21578] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21578] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21578] exit_group(0)               = ?
[pid 21578] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21578, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21579
./strace-static-x86_64: Process 21579 attached
[pid 21579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21579] setpgid(0, 0)               = 0
[pid 21579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21579] write(3, "1000", 4)         = 4
[pid 21579] close(3)                    = 0
[pid 21579] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21579] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21579] write(4, "78", 2)           = 2
[pid 21579] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21579] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21579] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21579] exit_group(0)               = ?
[pid 21579] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21579, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21580
./strace-static-x86_64: Process 21580 attached
[pid 21580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21580] setpgid(0, 0)               = 0
[pid 21580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21580] write(3, "1000", 4)         = 4
[pid 21580] close(3)                    = 0
[pid 21580] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21580] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21580] write(4, "78", 2)           = 2
[pid 21580] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21580] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21580] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21580] exit_group(0)               = ?
[pid 21580] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21580, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21581
./strace-static-x86_64: Process 21581 attached
[pid 21581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21581] setpgid(0, 0)               = 0
[pid 21581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21581] write(3, "1000", 4)         = 4
[pid 21581] close(3)                    = 0
[pid 21581] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21581] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21581] write(4, "78", 2)           = 2
[pid 21581] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21581] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21581] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21581] exit_group(0)               = ?
[pid 21581] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21581, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21582
./strace-static-x86_64: Process 21582 attached
[pid 21582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21582] setpgid(0, 0)               = 0
[pid 21582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21582] write(3, "1000", 4)         = 4
[pid 21582] close(3)                    = 0
[pid 21582] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21582] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21582] write(4, "78", 2)           = 2
[pid 21582] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21582] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21582] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21582] exit_group(0)               = ?
[pid 21582] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21582, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21583 attached
, child_tidptr=0x555555af35d0) = 21583
[pid 21583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21583] setpgid(0, 0)               = 0
[pid 21583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21583] write(3, "1000", 4)         = 4
[pid 21583] close(3)                    = 0
[pid 21583] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21583] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21583] write(4, "78", 2)           = 2
[pid 21583] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21583] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21583] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21583] exit_group(0)               = ?
[pid 21583] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21583, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21584 attached
, child_tidptr=0x555555af35d0) = 21584
[pid 21584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21584] setpgid(0, 0)               = 0
[pid 21584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21584] write(3, "1000", 4)         = 4
[pid 21584] close(3)                    = 0
[pid 21584] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21584] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21584] write(4, "78", 2)           = 2
[pid 21584] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21584] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21584] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21584] exit_group(0)               = ?
[pid 21584] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21584, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21585
./strace-static-x86_64: Process 21585 attached
[pid 21585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21585] setpgid(0, 0)               = 0
[pid 21585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21585] write(3, "1000", 4)         = 4
[pid 21585] close(3)                    = 0
[pid 21585] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21585] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21585] write(4, "78", 2)           = 2
[pid 21585] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21585] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21585] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21585] exit_group(0)               = ?
[pid 21585] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21585, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21586
./strace-static-x86_64: Process 21586 attached
[pid 21586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21586] setpgid(0, 0)               = 0
[pid 21586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21586] write(3, "1000", 4)         = 4
[pid 21586] close(3)                    = 0
[pid 21586] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21586] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21586] write(4, "78", 2)           = 2
[pid 21586] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21586] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21586] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21586] exit_group(0)               = ?
[pid 21586] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21586, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21587 attached
, child_tidptr=0x555555af35d0) = 21587
[pid 21587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21587] setpgid(0, 0)               = 0
[pid 21587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21587] write(3, "1000", 4)         = 4
[pid 21587] close(3)                    = 0
[pid 21587] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21587] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21587] write(4, "78", 2)           = 2
[pid 21587] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21587] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21587] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21587] exit_group(0)               = ?
[pid 21587] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21587, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21588 attached
, child_tidptr=0x555555af35d0) = 21588
[pid 21588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21588] setpgid(0, 0)               = 0
[pid 21588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21588] write(3, "1000", 4)         = 4
[pid 21588] close(3)                    = 0
[pid 21588] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21588] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21588] write(4, "78", 2)           = 2
[pid 21588] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21588] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21588] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21588] exit_group(0)               = ?
[pid 21588] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21588, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21589 attached
, child_tidptr=0x555555af35d0) = 21589
[pid 21589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21589] setpgid(0, 0)               = 0
[pid 21589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21589] write(3, "1000", 4)         = 4
[pid 21589] close(3)                    = 0
[pid 21589] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21589] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21589] write(4, "78", 2)           = 2
[pid 21589] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21589] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21589] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21589] exit_group(0)               = ?
[pid 21589] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21589, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21590 attached
, child_tidptr=0x555555af35d0) = 21590
[pid 21590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21590] setpgid(0, 0)               = 0
[pid 21590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21590] write(3, "1000", 4)         = 4
[pid 21590] close(3)                    = 0
[pid 21590] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21590] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21590] write(4, "78", 2)           = 2
[pid 21590] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21590] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21590] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21590] exit_group(0)               = ?
[pid 21590] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21590, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21591 attached
, child_tidptr=0x555555af35d0) = 21591
[pid 21591] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21591] setpgid(0, 0)               = 0
[pid 21591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21591] write(3, "1000", 4)         = 4
[pid 21591] close(3)                    = 0
[pid 21591] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21591] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21591] write(4, "78", 2)           = 2
[pid 21591] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21591] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21591] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21591] exit_group(0)               = ?
[pid 21591] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21591, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21592 attached
, child_tidptr=0x555555af35d0) = 21592
[pid 21592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21592] setpgid(0, 0)               = 0
[pid 21592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21592] write(3, "1000", 4)         = 4
[pid 21592] close(3)                    = 0
[pid 21592] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21592] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21592] write(4, "78", 2)           = 2
[pid 21592] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21592] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21592] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21592] exit_group(0)               = ?
[pid 21592] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21592, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21593 attached
, child_tidptr=0x555555af35d0) = 21593
[pid 21593] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21593] setpgid(0, 0)               = 0
[pid 21593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21593] write(3, "1000", 4)         = 4
[pid 21593] close(3)                    = 0
[pid 21593] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21593] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21593] write(4, "78", 2)           = 2
[pid 21593] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21593] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21593] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21593] exit_group(0)               = ?
[pid 21593] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21593, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21594 attached
, child_tidptr=0x555555af35d0) = 21594
[pid 21594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21594] setpgid(0, 0)               = 0
[pid 21594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21594] write(3, "1000", 4)         = 4
[pid 21594] close(3)                    = 0
[pid 21594] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21594] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21594] write(4, "78", 2)           = 2
[pid 21594] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21594] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21594] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21594] exit_group(0)               = ?
[pid 21594] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21594, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21595 attached
, child_tidptr=0x555555af35d0) = 21595
[pid 21595] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21595] setpgid(0, 0)               = 0
[pid 21595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21595] write(3, "1000", 4)         = 4
[pid 21595] close(3)                    = 0
[pid 21595] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21595] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21595] write(4, "78", 2)           = 2
[pid 21595] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21595] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21595] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21595] exit_group(0)               = ?
[pid 21595] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21595, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21596 attached
, child_tidptr=0x555555af35d0) = 21596
[pid 21596] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21596] setpgid(0, 0)               = 0
[pid 21596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21596] write(3, "1000", 4)         = 4
[pid 21596] close(3)                    = 0
[pid 21596] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21596] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21596] write(4, "78", 2)           = 2
[pid 21596] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21596] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21596] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21596] exit_group(0)               = ?
[pid 21596] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21596, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21597 attached
, child_tidptr=0x555555af35d0) = 21597
[pid 21597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21597] setpgid(0, 0)               = 0
[pid 21597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21597] write(3, "1000", 4)         = 4
[pid 21597] close(3)                    = 0
[pid 21597] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21597] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21597] write(4, "78", 2)           = 2
[pid 21597] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21597] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21597] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21597] exit_group(0)               = ?
[pid 21597] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21597, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21598 attached
, child_tidptr=0x555555af35d0) = 21598
[pid 21598] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21598] setpgid(0, 0)               = 0
[pid 21598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21598] write(3, "1000", 4)         = 4
[pid 21598] close(3)                    = 0
[pid 21598] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21598] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21598] write(4, "78", 2)           = 2
[pid 21598] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21598] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21598] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21598] exit_group(0)               = ?
[pid 21598] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21598, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21599 attached
, child_tidptr=0x555555af35d0) = 21599
[pid 21599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21599] setpgid(0, 0)               = 0
[pid 21599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21599] write(3, "1000", 4)         = 4
[pid 21599] close(3)                    = 0
[pid 21599] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21599] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21599] write(4, "78", 2)           = 2
[pid 21599] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21599] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21599] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21599] exit_group(0)               = ?
[pid 21599] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21599, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21600 attached
, child_tidptr=0x555555af35d0) = 21600
[pid 21600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21600] setpgid(0, 0)               = 0
[pid 21600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21600] write(3, "1000", 4)         = 4
[pid 21600] close(3)                    = 0
[pid 21600] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21600] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21600] write(4, "78", 2)           = 2
[pid 21600] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21600] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21600] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21600] exit_group(0)               = ?
[pid 21600] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21600, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21601 attached
, child_tidptr=0x555555af35d0) = 21601
[pid 21601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21601] setpgid(0, 0)               = 0
[pid 21601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21601] write(3, "1000", 4)         = 4
[pid 21601] close(3)                    = 0
[pid 21601] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21601] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21601] write(4, "78", 2)           = 2
[pid 21601] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21601] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21601] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21601] exit_group(0)               = ?
[pid 21601] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21601, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21602 attached
 <unfinished ...>
[pid 21602] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 21602
[pid 21602] <... prctl resumed>)        = 0
[pid 21602] setpgid(0, 0)               = 0
[pid 21602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21602] write(3, "1000", 4)         = 4
[pid 21602] close(3)                    = 0
[pid 21602] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21602] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21602] write(4, "78", 2)           = 2
[pid 21602] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21602] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21602] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21602] exit_group(0)               = ?
[pid 21602] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21602, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21603
./strace-static-x86_64: Process 21603 attached
[pid 21603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21603] setpgid(0, 0)               = 0
[pid 21603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21603] write(3, "1000", 4)         = 4
[pid 21603] close(3)                    = 0
[pid 21603] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21603] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21603] write(4, "78", 2)           = 2
[pid 21603] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21603] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21603] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21603] exit_group(0)               = ?
[pid 21603] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21603, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21604
./strace-static-x86_64: Process 21604 attached
[pid 21604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21604] setpgid(0, 0)               = 0
[pid 21604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21604] write(3, "1000", 4)         = 4
[pid 21604] close(3)                    = 0
[pid 21604] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21604] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21604] write(4, "78", 2)           = 2
[pid 21604] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21604] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21604] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21604] exit_group(0)               = ?
[pid 21604] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21604, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21605 attached
, child_tidptr=0x555555af35d0) = 21605
[pid 21605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21605] setpgid(0, 0)               = 0
[pid 21605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21605] write(3, "1000", 4)         = 4
[pid 21605] close(3)                    = 0
[pid 21605] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21605] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21605] write(4, "78", 2)           = 2
[pid 21605] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21605] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21605] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21605] exit_group(0)               = ?
[pid 21605] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21605, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21606 attached
, child_tidptr=0x555555af35d0) = 21606
[pid 21606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21606] setpgid(0, 0)               = 0
[pid 21606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21606] write(3, "1000", 4)         = 4
[pid 21606] close(3)                    = 0
[pid 21606] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21606] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21606] write(4, "78", 2)           = 2
[pid 21606] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21606] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21606] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21606] exit_group(0)               = ?
[pid 21606] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21606, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21607 attached
, child_tidptr=0x555555af35d0) = 21607
[pid 21607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21607] setpgid(0, 0)               = 0
[pid 21607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21607] write(3, "1000", 4)         = 4
[pid 21607] close(3)                    = 0
[pid 21607] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21607] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21607] write(4, "78", 2)           = 2
[pid 21607] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21607] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21607] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21607] exit_group(0)               = ?
[pid 21607] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21607, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21608 attached
, child_tidptr=0x555555af35d0) = 21608
[pid 21608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21608] setpgid(0, 0)               = 0
[pid 21608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21608] write(3, "1000", 4)         = 4
[pid 21608] close(3)                    = 0
[pid 21608] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21608] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21608] write(4, "78", 2)           = 2
[pid 21608] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21608] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21608] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21608] exit_group(0)               = ?
[pid 21608] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21608, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21609 attached
, child_tidptr=0x555555af35d0) = 21609
[pid 21609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21609] setpgid(0, 0)               = 0
[pid 21609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21609] write(3, "1000", 4)         = 4
[pid 21609] close(3)                    = 0
[pid 21609] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21609] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21609] write(4, "78", 2)           = 2
[pid 21609] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21609] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21609] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21609] exit_group(0)               = ?
[pid 21609] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21609, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21610 attached
, child_tidptr=0x555555af35d0) = 21610
[pid 21610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21610] setpgid(0, 0)               = 0
[pid 21610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21610] write(3, "1000", 4)         = 4
[pid 21610] close(3)                    = 0
[pid 21610] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21610] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21610] write(4, "78", 2)           = 2
[pid 21610] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21610] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21610] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21610] exit_group(0)               = ?
[pid 21610] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21610, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21611 attached
, child_tidptr=0x555555af35d0) = 21611
[pid 21611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21611] setpgid(0, 0)               = 0
[pid 21611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21611] write(3, "1000", 4)         = 4
[pid 21611] close(3)                    = 0
[pid 21611] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21611] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21611] write(4, "78", 2)           = 2
[pid 21611] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21611] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21611] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21611] exit_group(0)               = ?
[pid 21611] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21611, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21612 attached
, child_tidptr=0x555555af35d0) = 21612
[pid 21612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21612] setpgid(0, 0)               = 0
[pid 21612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21612] write(3, "1000", 4)         = 4
[pid 21612] close(3)                    = 0
[pid 21612] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21612] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21612] write(4, "78", 2)           = 2
[pid 21612] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21612] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21612] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21612] exit_group(0)               = ?
[pid 21612] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21612, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21613
./strace-static-x86_64: Process 21613 attached
[pid 21613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21613] setpgid(0, 0)               = 0
[pid 21613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21613] write(3, "1000", 4)         = 4
[pid 21613] close(3)                    = 0
[pid 21613] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21613] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21613] write(4, "78", 2)           = 2
[pid 21613] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21613] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21613] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21613] exit_group(0)               = ?
[pid 21613] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21613, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21614 attached
, child_tidptr=0x555555af35d0) = 21614
[pid 21614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21614] setpgid(0, 0)               = 0
[pid 21614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21614] write(3, "1000", 4)         = 4
[pid 21614] close(3)                    = 0
[pid 21614] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21614] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21614] write(4, "78", 2)           = 2
[pid 21614] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21614] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21614] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21614] exit_group(0)               = ?
[pid 21614] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21614, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21615 attached
, child_tidptr=0x555555af35d0) = 21615
[pid 21615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21615] setpgid(0, 0)               = 0
[pid 21615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21615] write(3, "1000", 4)         = 4
[pid 21615] close(3)                    = 0
[pid 21615] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21615] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21615] write(4, "78", 2)           = 2
[pid 21615] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21615] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21615] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21615] exit_group(0)               = ?
[pid 21615] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21615, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21616 attached
, child_tidptr=0x555555af35d0) = 21616
[pid 21616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21616] setpgid(0, 0)               = 0
[pid 21616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21616] write(3, "1000", 4)         = 4
[pid 21616] close(3)                    = 0
[pid 21616] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21616] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21616] write(4, "78", 2)           = 2
[pid 21616] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21616] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21616] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21616] exit_group(0)               = ?
[pid 21616] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21616, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21617 attached
, child_tidptr=0x555555af35d0) = 21617
[pid 21617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21617] setpgid(0, 0)               = 0
[pid 21617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21617] write(3, "1000", 4)         = 4
[pid 21617] close(3)                    = 0
[pid 21617] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21617] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21617] write(4, "78", 2)           = 2
[pid 21617] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21617] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21617] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21617] exit_group(0)               = ?
[pid 21617] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21617, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21618 attached
, child_tidptr=0x555555af35d0) = 21618
[pid 21618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21618] setpgid(0, 0)               = 0
[pid 21618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21618] write(3, "1000", 4)         = 4
[pid 21618] close(3)                    = 0
[pid 21618] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21618] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21618] write(4, "78", 2)           = 2
[pid 21618] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21618] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21618] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21618] exit_group(0)               = ?
[pid 21618] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21618, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21619 attached
, child_tidptr=0x555555af35d0) = 21619
[pid 21619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21619] setpgid(0, 0)               = 0
[pid 21619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21619] write(3, "1000", 4)         = 4
[pid 21619] close(3)                    = 0
[pid 21619] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21619] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21619] write(4, "78", 2)           = 2
[pid 21619] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21619] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21619] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21619] exit_group(0)               = ?
[pid 21619] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21619, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21620 attached
, child_tidptr=0x555555af35d0) = 21620
[pid 21620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21620] setpgid(0, 0)               = 0
[pid 21620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21620] write(3, "1000", 4)         = 4
[pid 21620] close(3)                    = 0
[pid 21620] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21620] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21620] write(4, "78", 2)           = 2
[pid 21620] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21620] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21620] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21620] exit_group(0)               = ?
[pid 21620] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21620, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21621 attached
, child_tidptr=0x555555af35d0) = 21621
[pid 21621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21621] setpgid(0, 0)               = 0
[pid 21621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21621] write(3, "1000", 4)         = 4
[pid 21621] close(3)                    = 0
[pid 21621] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21621] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21621] write(4, "78", 2)           = 2
[pid 21621] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21621] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21621] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21621] exit_group(0)               = ?
[pid 21621] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21621, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21622 attached
, child_tidptr=0x555555af35d0) = 21622
[pid 21622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21622] setpgid(0, 0)               = 0
[pid 21622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21622] write(3, "1000", 4)         = 4
[pid 21622] close(3)                    = 0
[pid 21622] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21622] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21622] write(4, "78", 2)           = 2
[pid 21622] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21622] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21622] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21622] exit_group(0)               = ?
[pid 21622] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21622, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21623 attached
, child_tidptr=0x555555af35d0) = 21623
[pid 21623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21623] setpgid(0, 0)               = 0
[pid 21623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21623] write(3, "1000", 4)         = 4
[pid 21623] close(3)                    = 0
[pid 21623] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21623] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21623] write(4, "78", 2)           = 2
[pid 21623] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21623] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21623] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21623] exit_group(0)               = ?
[pid 21623] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21623, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21624 attached
, child_tidptr=0x555555af35d0) = 21624
[pid 21624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21624] setpgid(0, 0)               = 0
[pid 21624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21624] write(3, "1000", 4)         = 4
[pid 21624] close(3)                    = 0
[pid 21624] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21624] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21624] write(4, "78", 2)           = 2
[pid 21624] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21624] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21624] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21624] exit_group(0)               = ?
[pid 21624] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21624, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21625 attached
, child_tidptr=0x555555af35d0) = 21625
[pid 21625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21625] setpgid(0, 0)               = 0
[pid 21625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21625] write(3, "1000", 4)         = 4
[pid 21625] close(3)                    = 0
[pid 21625] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21625] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21625] write(4, "78", 2)           = 2
[pid 21625] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21625] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21625] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21625] exit_group(0)               = ?
[pid 21625] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21625, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21626 attached
, child_tidptr=0x555555af35d0) = 21626
[pid 21626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21626] setpgid(0, 0)               = 0
[pid 21626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21626] write(3, "1000", 4)         = 4
[pid 21626] close(3)                    = 0
[pid 21626] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21626] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21626] write(4, "78", 2)           = 2
[pid 21626] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21626] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21626] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 21626] exit_group(0)               = ?
[pid 21626] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21626, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21627
./strace-static-x86_64: Process 21627 attached
[pid 21627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21627] setpgid(0, 0)               = 0
[pid 21627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21627] write(3, "1000", 4)         = 4
[pid 21627] close(3)                    = 0
[pid 21627] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21627] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21627] write(4, "78", 2)           = 2
[pid 21627] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 21627] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21627] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21627] exit_group(0)               = ?
[pid 21627] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21627, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21628 attached
, child_tidptr=0x555555af35d0) = 21628
[pid 21628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21628] setpgid(0, 0)               = 0
[pid 21628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21628] write(3, "1000", 4)         = 4
[pid 21628] close(3)                    = 0
[pid 21628] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21628] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21628] write(4, "78", 2)           = 2
[pid 21628] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21628] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21628] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21628] exit_group(0)               = ?
[pid 21628] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21628, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21629 attached
, child_tidptr=0x555555af35d0) = 21629
[pid 21629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21629] setpgid(0, 0)               = 0
[pid 21629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21629] write(3, "1000", 4)         = 4
[pid 21629] close(3)                    = 0
[pid 21629] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21629] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21629] write(4, "78", 2)           = 2
[pid 21629] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21629] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21629] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21629] exit_group(0)               = ?
[pid 21629] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21629, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21630 attached
, child_tidptr=0x555555af35d0) = 21630
[pid 21630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21630] setpgid(0, 0)               = 0
[pid 21630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21630] write(3, "1000", 4)         = 4
[pid 21630] close(3)                    = 0
[pid 21630] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21630] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21630] write(4, "78", 2)           = 2
[pid 21630] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21630] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21630] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21630] exit_group(0)               = ?
[pid 21630] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21630, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21631 attached
, child_tidptr=0x555555af35d0) = 21631
[pid 21631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21631] setpgid(0, 0)               = 0
[pid 21631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21631] write(3, "1000", 4)         = 4
[pid 21631] close(3)                    = 0
[pid 21631] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21631] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21631] write(4, "78", 2)           = 2
[pid 21631] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21631] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21631] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21631] exit_group(0)               = ?
[pid 21631] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21631, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21632 attached
, child_tidptr=0x555555af35d0) = 21632
[pid 21632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21632] setpgid(0, 0)               = 0
[pid 21632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21632] write(3, "1000", 4)         = 4
[pid 21632] close(3)                    = 0
[pid 21632] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21632] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21632] write(4, "78", 2)           = 2
[pid 21632] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21632] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21632] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21632] exit_group(0)               = ?
[pid 21632] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21632, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21633 attached
, child_tidptr=0x555555af35d0) = 21633
[pid 21633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21633] setpgid(0, 0)               = 0
[pid 21633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21633] write(3, "1000", 4)         = 4
[pid 21633] close(3)                    = 0
[pid 21633] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21633] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21633] write(4, "78", 2)           = 2
[pid 21633] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21633] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21633] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21633] exit_group(0)               = ?
[pid 21633] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21633, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21634 attached
, child_tidptr=0x555555af35d0) = 21634
[pid 21634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21634] setpgid(0, 0)               = 0
[pid 21634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21634] write(3, "1000", 4)         = 4
[pid 21634] close(3)                    = 0
[pid 21634] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21634] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21634] write(4, "78", 2)           = 2
[pid 21634] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21634] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21634] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21634] exit_group(0)               = ?
[pid 21634] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21634, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21635 attached
, child_tidptr=0x555555af35d0) = 21635
[pid 21635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21635] setpgid(0, 0)               = 0
[pid 21635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21635] write(3, "1000", 4)         = 4
[pid 21635] close(3)                    = 0
[pid 21635] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21635] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21635] write(4, "78", 2)           = 2
[pid 21635] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21635] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21635] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21635] exit_group(0)               = ?
[pid 21635] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21635, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21636
./strace-static-x86_64: Process 21636 attached
[pid 21636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21636] setpgid(0, 0)               = 0
[pid 21636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21636] write(3, "1000", 4)         = 4
[pid 21636] close(3)                    = 0
[pid 21636] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21636] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21636] write(4, "78", 2)           = 2
[pid 21636] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21636] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21636] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21636] exit_group(0)               = ?
[pid 21636] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21636, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21637 attached
, child_tidptr=0x555555af35d0) = 21637
[pid 21637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21637] setpgid(0, 0)               = 0
[pid 21637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21637] write(3, "1000", 4)         = 4
[pid 21637] close(3)                    = 0
[pid 21637] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21637] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21637] write(4, "78", 2)           = 2
[pid 21637] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21637] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21637] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21637] exit_group(0)               = ?
[pid 21637] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21637, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21638 attached
, child_tidptr=0x555555af35d0) = 21638
[pid 21638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21638] setpgid(0, 0)               = 0
[pid 21638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21638] write(3, "1000", 4)         = 4
[pid 21638] close(3)                    = 0
[pid 21638] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21638] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21638] write(4, "78", 2)           = 2
[pid 21638] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21638] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21638] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21638] exit_group(0)               = ?
[pid 21638] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21638, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21639
./strace-static-x86_64: Process 21639 attached
[pid 21639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21639] setpgid(0, 0)               = 0
[pid 21639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21639] write(3, "1000", 4)         = 4
[pid 21639] close(3)                    = 0
[pid 21639] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21639] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21639] write(4, "78", 2)           = 2
[pid 21639] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21639] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21639] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21639] exit_group(0)               = ?
[pid 21639] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21639, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21640 attached
, child_tidptr=0x555555af35d0) = 21640
[pid 21640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21640] setpgid(0, 0)               = 0
[pid 21640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21640] write(3, "1000", 4)         = 4
[pid 21640] close(3)                    = 0
[pid 21640] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21640] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21640] write(4, "78", 2)           = 2
[pid 21640] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21640] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21640] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21640] exit_group(0)               = ?
[pid 21640] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21640, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21641
./strace-static-x86_64: Process 21641 attached
[pid 21641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21641] setpgid(0, 0)               = 0
[pid 21641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21641] write(3, "1000", 4)         = 4
[pid 21641] close(3)                    = 0
[pid 21641] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21641] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21641] write(4, "78", 2)           = 2
[pid 21641] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21641] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21641] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21641] exit_group(0)               = ?
[pid 21641] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21641, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21642 attached
, child_tidptr=0x555555af35d0) = 21642
[pid 21642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21642] setpgid(0, 0)               = 0
[pid 21642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21642] write(3, "1000", 4)         = 4
[pid 21642] close(3)                    = 0
[pid 21642] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21642] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21642] write(4, "78", 2)           = 2
[pid 21642] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21642] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21642] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21642] exit_group(0)               = ?
[pid 21642] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21642, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21643 attached
, child_tidptr=0x555555af35d0) = 21643
[pid 21643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21643] setpgid(0, 0)               = 0
[pid 21643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21643] write(3, "1000", 4)         = 4
[pid 21643] close(3)                    = 0
[pid 21643] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21643] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21643] write(4, "78", 2)           = 2
[pid 21643] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21643] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21643] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21643] exit_group(0)               = ?
[pid 21643] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21643, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21644 attached
, child_tidptr=0x555555af35d0) = 21644
[pid 21644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21644] setpgid(0, 0)               = 0
[pid 21644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21644] write(3, "1000", 4)         = 4
[pid 21644] close(3)                    = 0
[pid 21644] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21644] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21644] write(4, "78", 2)           = 2
[pid 21644] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21644] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21644] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21644] exit_group(0)               = ?
[pid 21644] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21644, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21645 attached
, child_tidptr=0x555555af35d0) = 21645
[pid 21645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21645] setpgid(0, 0)               = 0
[pid 21645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21645] write(3, "1000", 4)         = 4
[pid 21645] close(3)                    = 0
[pid 21645] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21645] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21645] write(4, "78", 2)           = 2
[pid 21645] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21645] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21645] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21645] exit_group(0)               = ?
[pid 21645] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21645, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21646 attached
, child_tidptr=0x555555af35d0) = 21646
[pid 21646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21646] setpgid(0, 0)               = 0
[pid 21646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21646] write(3, "1000", 4)         = 4
[pid 21646] close(3)                    = 0
[pid 21646] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21646] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21646] write(4, "78", 2)           = 2
[pid 21646] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21646] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21646] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21646] exit_group(0)               = ?
[pid 21646] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21646, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21647 attached
, child_tidptr=0x555555af35d0) = 21647
[pid 21647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21647] setpgid(0, 0)               = 0
[pid 21647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21647] write(3, "1000", 4)         = 4
[pid 21647] close(3)                    = 0
[pid 21647] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21647] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21647] write(4, "78", 2)           = 2
[pid 21647] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21647] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21647] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21647] exit_group(0)               = ?
[pid 21647] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21647, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21648 attached
, child_tidptr=0x555555af35d0) = 21648
[pid 21648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21648] setpgid(0, 0)               = 0
[pid 21648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21648] write(3, "1000", 4)         = 4
[pid 21648] close(3)                    = 0
[pid 21648] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21648] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21648] write(4, "78", 2)           = 2
[pid 21648] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21648] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21648] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21648] exit_group(0)               = ?
[pid 21648] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21648, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21649 attached
, child_tidptr=0x555555af35d0) = 21649
[pid 21649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21649] setpgid(0, 0)               = 0
[pid 21649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21649] write(3, "1000", 4)         = 4
[pid 21649] close(3)                    = 0
[pid 21649] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21649] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21649] write(4, "78", 2)           = 2
[pid 21649] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21649] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21649] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21649] exit_group(0)               = ?
[pid 21649] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21649, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21650
./strace-static-x86_64: Process 21650 attached
[pid 21650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21650] setpgid(0, 0)               = 0
[pid 21650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21650] write(3, "1000", 4)         = 4
[pid 21650] close(3)                    = 0
[pid 21650] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21650] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21650] write(4, "78", 2)           = 2
[pid 21650] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21650] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21650] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21650] exit_group(0)               = ?
[pid 21650] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21650, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21651 attached
, child_tidptr=0x555555af35d0) = 21651
[pid 21651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21651] setpgid(0, 0)               = 0
[pid 21651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21651] write(3, "1000", 4)         = 4
[pid 21651] close(3)                    = 0
[pid 21651] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21651] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21651] write(4, "78", 2)           = 2
[pid 21651] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21651] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21651] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21651] exit_group(0)               = ?
[pid 21651] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21651, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21652 attached
, child_tidptr=0x555555af35d0) = 21652
[pid 21652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21652] setpgid(0, 0)               = 0
[pid 21652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21652] write(3, "1000", 4)         = 4
[pid 21652] close(3)                    = 0
[pid 21652] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21652] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21652] write(4, "78", 2)           = 2
[pid 21652] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21652] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21652] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21652] exit_group(0)               = ?
[pid 21652] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21652, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21653
./strace-static-x86_64: Process 21653 attached
[pid 21653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21653] setpgid(0, 0)               = 0
[pid 21653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21653] write(3, "1000", 4)         = 4
[pid 21653] close(3)                    = 0
[pid 21653] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21653] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21653] write(4, "78", 2)           = 2
[pid 21653] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21653] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21653] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21653] exit_group(0)               = ?
[pid 21653] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21653, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21654 attached
, child_tidptr=0x555555af35d0) = 21654
[pid 21654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21654] setpgid(0, 0)               = 0
[pid 21654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21654] write(3, "1000", 4)         = 4
[pid 21654] close(3)                    = 0
[pid 21654] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21654] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21654] write(4, "78", 2)           = 2
[pid 21654] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21654] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21654] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21654] exit_group(0)               = ?
[pid 21654] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21654, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21655 attached
, child_tidptr=0x555555af35d0) = 21655
[pid 21655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21655] setpgid(0, 0)               = 0
[pid 21655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21655] write(3, "1000", 4)         = 4
[pid 21655] close(3)                    = 0
[pid 21655] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21655] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21655] write(4, "78", 2)           = 2
[pid 21655] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21655] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21655] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21655] exit_group(0)               = ?
[pid 21655] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21655, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21656 attached
, child_tidptr=0x555555af35d0) = 21656
[pid 21656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21656] setpgid(0, 0)               = 0
[pid 21656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21656] write(3, "1000", 4)         = 4
[pid 21656] close(3)                    = 0
[pid 21656] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21656] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21656] write(4, "78", 2)           = 2
[pid 21656] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21656] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21656] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21656] exit_group(0)               = ?
[pid 21656] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21656, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21657 attached
, child_tidptr=0x555555af35d0) = 21657
[pid 21657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21657] setpgid(0, 0)               = 0
[pid 21657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21657] write(3, "1000", 4)         = 4
[pid 21657] close(3)                    = 0
[pid 21657] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21657] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21657] write(4, "78", 2)           = 2
[pid 21657] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21657] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21657] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21657] exit_group(0)               = ?
[pid 21657] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21657, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21658 attached
, child_tidptr=0x555555af35d0) = 21658
[pid 21658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21658] setpgid(0, 0)               = 0
[pid 21658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21658] write(3, "1000", 4)         = 4
[pid 21658] close(3)                    = 0
[pid 21658] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21658] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21658] write(4, "78", 2)           = 2
[pid 21658] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21658] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21658] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21658] exit_group(0)               = ?
[pid 21658] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21658, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21659 attached
, child_tidptr=0x555555af35d0) = 21659
[pid 21659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21659] setpgid(0, 0)               = 0
[pid 21659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21659] write(3, "1000", 4)         = 4
[pid 21659] close(3)                    = 0
[pid 21659] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21659] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21659] write(4, "78", 2)           = 2
[pid 21659] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21659] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21659] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21659] exit_group(0)               = ?
[pid 21659] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21659, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21660 attached
, child_tidptr=0x555555af35d0) = 21660
[pid 21660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21660] setpgid(0, 0)               = 0
[pid 21660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21660] write(3, "1000", 4)         = 4
[pid 21660] close(3)                    = 0
[pid 21660] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21660] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21660] write(4, "78", 2)           = 2
[pid 21660] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21660] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21660] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21660] exit_group(0)               = ?
[pid 21660] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21660, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21661
./strace-static-x86_64: Process 21661 attached
[pid 21661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21661] setpgid(0, 0)               = 0
[pid 21661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21661] write(3, "1000", 4)         = 4
[pid 21661] close(3)                    = 0
[pid 21661] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21661] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21661] write(4, "78", 2)           = 2
[pid 21661] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21661] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21661] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21661] exit_group(0)               = ?
[pid 21661] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21661, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21662 attached
, child_tidptr=0x555555af35d0) = 21662
[pid 21662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21662] setpgid(0, 0)               = 0
[pid 21662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21662] write(3, "1000", 4)         = 4
[pid 21662] close(3)                    = 0
[pid 21662] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21662] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21662] write(4, "78", 2)           = 2
[pid 21662] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21662] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21662] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21662] exit_group(0)               = ?
[pid 21662] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21662, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21663 attached
, child_tidptr=0x555555af35d0) = 21663
[pid 21663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21663] setpgid(0, 0)               = 0
[pid 21663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21663] write(3, "1000", 4)         = 4
[pid 21663] close(3)                    = 0
[pid 21663] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21663] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21663] write(4, "78", 2)           = 2
[pid 21663] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21663] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21663] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21663] exit_group(0)               = ?
[pid 21663] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21663, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21664 attached
, child_tidptr=0x555555af35d0) = 21664
[pid 21664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21664] setpgid(0, 0)               = 0
[pid 21664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21664] write(3, "1000", 4)         = 4
[pid 21664] close(3)                    = 0
[pid 21664] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21664] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21664] write(4, "78", 2)           = 2
[pid 21664] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21664] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21664] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21664] exit_group(0)               = ?
[pid 21664] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21664, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21665 attached
, child_tidptr=0x555555af35d0) = 21665
[pid 21665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21665] setpgid(0, 0)               = 0
[pid 21665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21665] write(3, "1000", 4)         = 4
[pid 21665] close(3)                    = 0
[pid 21665] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21665] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21665] write(4, "78", 2)           = 2
[pid 21665] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21665] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21665] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21665] exit_group(0)               = ?
[pid 21665] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21665, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21666 attached
, child_tidptr=0x555555af35d0) = 21666
[pid 21666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21666] setpgid(0, 0)               = 0
[pid 21666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21666] write(3, "1000", 4)         = 4
[pid 21666] close(3)                    = 0
[pid 21666] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21666] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21666] write(4, "78", 2)           = 2
[pid 21666] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21666] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21666] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21666] exit_group(0)               = ?
[pid 21666] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21666, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21667 attached
, child_tidptr=0x555555af35d0) = 21667
[pid 21667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21667] setpgid(0, 0)               = 0
[pid 21667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21667] write(3, "1000", 4)         = 4
[pid 21667] close(3)                    = 0
[pid 21667] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21667] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21667] write(4, "78", 2)           = 2
[pid 21667] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21667] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21667] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21667] exit_group(0)               = ?
[pid 21667] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21667, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21668 attached
, child_tidptr=0x555555af35d0) = 21668
[pid 21668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21668] setpgid(0, 0)               = 0
[pid 21668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21668] write(3, "1000", 4)         = 4
[pid 21668] close(3)                    = 0
[pid 21668] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21668] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21668] write(4, "78", 2)           = 2
[pid 21668] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21668] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21668] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21668] exit_group(0)               = ?
[pid 21668] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21668, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21669 attached
, child_tidptr=0x555555af35d0) = 21669
[pid 21669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21669] setpgid(0, 0)               = 0
[pid 21669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21669] write(3, "1000", 4)         = 4
[pid 21669] close(3)                    = 0
[pid 21669] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21669] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21669] write(4, "78", 2)           = 2
[pid 21669] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21669] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21669] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21669] exit_group(0)               = ?
[pid 21669] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21669, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21670 attached
, child_tidptr=0x555555af35d0) = 21670
[pid 21670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21670] setpgid(0, 0)               = 0
[pid 21670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21670] write(3, "1000", 4)         = 4
[pid 21670] close(3)                    = 0
[pid 21670] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21670] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21670] write(4, "78", 2)           = 2
[pid 21670] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21670] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21670] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21670] exit_group(0)               = ?
[pid 21670] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21670, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21671 attached
, child_tidptr=0x555555af35d0) = 21671
[pid 21671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21671] setpgid(0, 0)               = 0
[pid 21671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21671] write(3, "1000", 4)         = 4
[pid 21671] close(3)                    = 0
[pid 21671] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21671] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21671] write(4, "78", 2)           = 2
[pid 21671] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21671] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21671] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21671] exit_group(0)               = ?
[pid 21671] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21671, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21672 attached
, child_tidptr=0x555555af35d0) = 21672
[pid 21672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21672] setpgid(0, 0)               = 0
[pid 21672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21672] write(3, "1000", 4)         = 4
[pid 21672] close(3)                    = 0
[pid 21672] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21672] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21672] write(4, "78", 2)           = 2
[pid 21672] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21672] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21672] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21672] exit_group(0)               = ?
[pid 21672] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21672, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21673 attached
, child_tidptr=0x555555af35d0) = 21673
[pid 21673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21673] setpgid(0, 0)               = 0
[pid 21673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21673] write(3, "1000", 4)         = 4
[pid 21673] close(3)                    = 0
[pid 21673] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21673] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21673] write(4, "78", 2)           = 2
[pid 21673] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21673] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21673] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21673] exit_group(0)               = ?
[pid 21673] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21673, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21674
./strace-static-x86_64: Process 21674 attached
[pid 21674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21674] setpgid(0, 0)               = 0
[pid 21674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21674] write(3, "1000", 4)         = 4
[pid 21674] close(3)                    = 0
[pid 21674] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21674] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21674] write(4, "78", 2)           = 2
[pid 21674] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21674] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21674] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21674] exit_group(0)               = ?
[pid 21674] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21674, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21675 attached
, child_tidptr=0x555555af35d0) = 21675
[pid 21675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21675] setpgid(0, 0)               = 0
[pid 21675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21675] write(3, "1000", 4)         = 4
[pid 21675] close(3)                    = 0
[pid 21675] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21675] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21675] write(4, "78", 2)           = 2
[pid 21675] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21675] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21675] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21675] exit_group(0)               = ?
[pid 21675] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21675, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21676 attached
, child_tidptr=0x555555af35d0) = 21676
[pid 21676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21676] setpgid(0, 0)               = 0
[pid 21676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21676] write(3, "1000", 4)         = 4
[pid 21676] close(3)                    = 0
[pid 21676] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21676] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21676] write(4, "78", 2)           = 2
[pid 21676] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21676] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21676] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21676] exit_group(0)               = ?
[pid 21676] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21676, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21677 attached
, child_tidptr=0x555555af35d0) = 21677
[pid 21677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21677] setpgid(0, 0)               = 0
[pid 21677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21677] write(3, "1000", 4)         = 4
[pid 21677] close(3)                    = 0
[pid 21677] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21677] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21677] write(4, "78", 2)           = 2
[pid 21677] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21677] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21677] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21677] exit_group(0)               = ?
[pid 21677] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21677, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21678 attached
, child_tidptr=0x555555af35d0) = 21678
[pid 21678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21678] setpgid(0, 0)               = 0
[pid 21678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21678] write(3, "1000", 4)         = 4
[pid 21678] close(3)                    = 0
[pid 21678] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21678] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21678] write(4, "78", 2)           = 2
[pid 21678] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21678] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21678] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21678] exit_group(0)               = ?
[pid 21678] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21678, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21679
./strace-static-x86_64: Process 21679 attached
[pid 21679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21679] setpgid(0, 0)               = 0
[pid 21679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21679] write(3, "1000", 4)         = 4
[pid 21679] close(3)                    = 0
[pid 21679] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21679] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21679] write(4, "78", 2)           = 2
[pid 21679] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21679] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21679] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21679] exit_group(0)               = ?
[pid 21679] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21679, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21680 attached
, child_tidptr=0x555555af35d0) = 21680
[pid 21680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21680] setpgid(0, 0)               = 0
[pid 21680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21680] write(3, "1000", 4)         = 4
[pid 21680] close(3)                    = 0
[pid 21680] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21680] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21680] write(4, "78", 2)           = 2
[pid 21680] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21680] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21680] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21680] exit_group(0)               = ?
[pid 21680] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21680, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21681 attached
, child_tidptr=0x555555af35d0) = 21681
[pid 21681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21681] setpgid(0, 0)               = 0
[pid 21681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21681] write(3, "1000", 4)         = 4
[pid 21681] close(3)                    = 0
[pid 21681] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21681] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21681] write(4, "78", 2)           = 2
[pid 21681] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21681] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21681] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21681] exit_group(0)               = ?
[pid 21681] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21681, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21682 attached
, child_tidptr=0x555555af35d0) = 21682
[pid 21682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21682] setpgid(0, 0)               = 0
[pid 21682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21682] write(3, "1000", 4)         = 4
[pid 21682] close(3)                    = 0
[pid 21682] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21682] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21682] write(4, "78", 2)           = 2
[pid 21682] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21682] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21682] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21682] exit_group(0)               = ?
[pid 21682] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21682, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21683
./strace-static-x86_64: Process 21683 attached
[pid 21683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21683] setpgid(0, 0)               = 0
[pid 21683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21683] write(3, "1000", 4)         = 4
[pid 21683] close(3)                    = 0
[pid 21683] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21683] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21683] write(4, "78", 2)           = 2
[pid 21683] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21683] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21683] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21683] exit_group(0)               = ?
[pid 21683] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21683, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21684 attached
, child_tidptr=0x555555af35d0) = 21684
[pid 21684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21684] setpgid(0, 0)               = 0
[pid 21684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21684] write(3, "1000", 4)         = 4
[pid 21684] close(3)                    = 0
[pid 21684] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21684] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21684] write(4, "78", 2)           = 2
[pid 21684] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21684] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21684] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21684] exit_group(0)               = ?
[pid 21684] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21684, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21685 attached
, child_tidptr=0x555555af35d0) = 21685
[pid 21685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21685] setpgid(0, 0)               = 0
[pid 21685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21685] write(3, "1000", 4)         = 4
[pid 21685] close(3)                    = 0
[pid 21685] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21685] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21685] write(4, "78", 2)           = 2
[pid 21685] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21685] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21685] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21685] exit_group(0)               = ?
[pid 21685] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21685, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21686 attached
, child_tidptr=0x555555af35d0) = 21686
[pid 21686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21686] setpgid(0, 0)               = 0
[pid 21686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21686] write(3, "1000", 4)         = 4
[pid 21686] close(3)                    = 0
[pid 21686] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21686] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21686] write(4, "78", 2)           = 2
[pid 21686] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21686] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21686] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21686] exit_group(0)               = ?
[pid 21686] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21686, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21687 attached
, child_tidptr=0x555555af35d0) = 21687
[pid 21687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21687] setpgid(0, 0)               = 0
[pid 21687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21687] write(3, "1000", 4)         = 4
[pid 21687] close(3)                    = 0
[pid 21687] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21687] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21687] write(4, "78", 2)           = 2
[pid 21687] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21687] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21687] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21687] exit_group(0)               = ?
[pid 21687] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21687, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21688
./strace-static-x86_64: Process 21688 attached
[pid 21688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21688] setpgid(0, 0)               = 0
[pid 21688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21688] write(3, "1000", 4)         = 4
[pid 21688] close(3)                    = 0
[pid 21688] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21688] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21688] write(4, "78", 2)           = 2
[pid 21688] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21688] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21688] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21688] exit_group(0)               = ?
[pid 21688] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21688, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21689 attached
, child_tidptr=0x555555af35d0) = 21689
[pid 21689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21689] setpgid(0, 0)               = 0
[pid 21689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21689] write(3, "1000", 4)         = 4
[pid 21689] close(3)                    = 0
[pid 21689] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21689] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21689] write(4, "78", 2)           = 2
[pid 21689] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21689] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21689] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21689] exit_group(0)               = ?
[pid 21689] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21689, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21690 attached
, child_tidptr=0x555555af35d0) = 21690
[pid 21690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21690] setpgid(0, 0)               = 0
[pid 21690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21690] write(3, "1000", 4)         = 4
[pid 21690] close(3)                    = 0
[pid 21690] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21690] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21690] write(4, "78", 2)           = 2
[pid 21690] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21690] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21690] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21690] exit_group(0)               = ?
[pid 21690] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21690, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21691 attached
, child_tidptr=0x555555af35d0) = 21691
[pid 21691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21691] setpgid(0, 0)               = 0
[pid 21691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21691] write(3, "1000", 4)         = 4
[pid 21691] close(3)                    = 0
[pid 21691] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21691] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21691] write(4, "78", 2)           = 2
[pid 21691] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21691] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21691] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21691] exit_group(0)               = ?
[pid 21691] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21691, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21692
./strace-static-x86_64: Process 21692 attached
[pid 21692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21692] setpgid(0, 0)               = 0
[pid 21692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21692] write(3, "1000", 4)         = 4
[pid 21692] close(3)                    = 0
[pid 21692] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21692] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21692] write(4, "78", 2)           = 2
[pid 21692] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21692] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21692] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21692] exit_group(0)               = ?
[pid 21692] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21692, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21693
./strace-static-x86_64: Process 21693 attached
[pid 21693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21693] setpgid(0, 0)               = 0
[pid 21693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21693] write(3, "1000", 4)         = 4
[pid 21693] close(3)                    = 0
[pid 21693] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21693] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21693] write(4, "78", 2)           = 2
[pid 21693] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21693] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21693] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21693] exit_group(0)               = ?
[pid 21693] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21693, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21694 attached
, child_tidptr=0x555555af35d0) = 21694
[pid 21694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21694] setpgid(0, 0)               = 0
[pid 21694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21694] write(3, "1000", 4)         = 4
[pid 21694] close(3)                    = 0
[pid 21694] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21694] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21694] write(4, "78", 2)           = 2
[pid 21694] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21694] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21694] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21694] exit_group(0)               = ?
[pid 21694] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21694, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21695 attached
, child_tidptr=0x555555af35d0) = 21695
[pid 21695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21695] setpgid(0, 0)               = 0
[pid 21695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21695] write(3, "1000", 4)         = 4
[pid 21695] close(3)                    = 0
[pid 21695] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21695] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21695] write(4, "78", 2)           = 2
[pid 21695] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21695] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21695] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21695] exit_group(0)               = ?
[pid 21695] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21695, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21696 attached
, child_tidptr=0x555555af35d0) = 21696
[pid 21696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21696] setpgid(0, 0)               = 0
[pid 21696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21696] write(3, "1000", 4)         = 4
[pid 21696] close(3)                    = 0
[pid 21696] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21696] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21696] write(4, "78", 2)           = 2
[pid 21696] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21696] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21696] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21696] exit_group(0)               = ?
[pid 21696] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21696, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21697 attached
, child_tidptr=0x555555af35d0) = 21697
[pid 21697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21697] setpgid(0, 0)               = 0
[pid 21697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21697] write(3, "1000", 4)         = 4
[pid 21697] close(3)                    = 0
[pid 21697] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21697] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21697] write(4, "78", 2)           = 2
[pid 21697] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21697] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21697] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21697] exit_group(0)               = ?
[pid 21697] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21697, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21698 attached
, child_tidptr=0x555555af35d0) = 21698
[pid 21698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21698] setpgid(0, 0)               = 0
[pid 21698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21698] write(3, "1000", 4)         = 4
[pid 21698] close(3)                    = 0
[pid 21698] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21698] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21698] write(4, "78", 2)           = 2
[pid 21698] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21698] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21698] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21698] exit_group(0)               = ?
[pid 21698] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21698, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21699
./strace-static-x86_64: Process 21699 attached
[pid 21699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21699] setpgid(0, 0)               = 0
[pid 21699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21699] write(3, "1000", 4)         = 4
[pid 21699] close(3)                    = 0
[pid 21699] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21699] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21699] write(4, "78", 2)           = 2
[pid 21699] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21699] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21699] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21699] exit_group(0)               = ?
[pid 21699] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21699, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21700
./strace-static-x86_64: Process 21700 attached
[pid 21700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21700] setpgid(0, 0)               = 0
[pid 21700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21700] write(3, "1000", 4)         = 4
[pid 21700] close(3)                    = 0
[pid 21700] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21700] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21700] write(4, "78", 2)           = 2
[pid 21700] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21700] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21700] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21700] exit_group(0)               = ?
[pid 21700] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21700, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21701 attached
, child_tidptr=0x555555af35d0) = 21701
[pid 21701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21701] setpgid(0, 0)               = 0
[pid 21701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21701] write(3, "1000", 4)         = 4
[pid 21701] close(3)                    = 0
[pid 21701] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21701] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21701] write(4, "78", 2)           = 2
[pid 21701] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21701] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21701] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21701] exit_group(0)               = ?
[pid 21701] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21701, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21702 attached
, child_tidptr=0x555555af35d0) = 21702
[pid 21702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21702] setpgid(0, 0)               = 0
[pid 21702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21702] write(3, "1000", 4)         = 4
[pid 21702] close(3)                    = 0
[pid 21702] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21702] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21702] write(4, "78", 2)           = 2
[pid 21702] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21702] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21702] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21702] exit_group(0)               = ?
[pid 21702] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21702, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21703 attached
, child_tidptr=0x555555af35d0) = 21703
[pid 21703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21703] setpgid(0, 0)               = 0
[pid 21703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21703] write(3, "1000", 4)         = 4
[pid 21703] close(3)                    = 0
[pid 21703] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21703] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21703] write(4, "78", 2)           = 2
[pid 21703] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21703] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21703] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21703] exit_group(0)               = ?
[pid 21703] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21703, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21704 attached
, child_tidptr=0x555555af35d0) = 21704
[pid 21704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21704] setpgid(0, 0)               = 0
[pid 21704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21704] write(3, "1000", 4)         = 4
[pid 21704] close(3)                    = 0
[pid 21704] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21704] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21704] write(4, "78", 2)           = 2
[pid 21704] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21704] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21704] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21704] exit_group(0)               = ?
[pid 21704] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21704, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21705
./strace-static-x86_64: Process 21705 attached
[pid 21705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21705] setpgid(0, 0)               = 0
[pid 21705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21705] write(3, "1000", 4)         = 4
[pid 21705] close(3)                    = 0
[pid 21705] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21705] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21705] write(4, "78", 2)           = 2
[pid 21705] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21705] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21705] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21705] exit_group(0)               = ?
[pid 21705] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21705, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21706 attached
, child_tidptr=0x555555af35d0) = 21706
[pid 21706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21706] setpgid(0, 0)               = 0
[pid 21706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21706] write(3, "1000", 4)         = 4
[pid 21706] close(3)                    = 0
[pid 21706] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21706] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21706] write(4, "78", 2)           = 2
[pid 21706] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21706] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21706] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21706] exit_group(0)               = ?
[pid 21706] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21706, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21707 attached
, child_tidptr=0x555555af35d0) = 21707
[pid 21707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21707] setpgid(0, 0)               = 0
[pid 21707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21707] write(3, "1000", 4)         = 4
[pid 21707] close(3)                    = 0
[pid 21707] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21707] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21707] write(4, "78", 2)           = 2
[pid 21707] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21707] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21707] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21707] exit_group(0)               = ?
[pid 21707] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21707, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21708 attached
, child_tidptr=0x555555af35d0) = 21708
[pid 21708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21708] setpgid(0, 0)               = 0
[pid 21708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21708] write(3, "1000", 4)         = 4
[pid 21708] close(3)                    = 0
[pid 21708] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21708] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21708] write(4, "78", 2)           = 2
[pid 21708] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21708] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21708] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 21708] exit_group(0)               = ?
[pid 21708] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21708, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21709 attached
, child_tidptr=0x555555af35d0) = 21709
[pid 21709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21709] setpgid(0, 0)               = 0
[pid 21709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21709] write(3, "1000", 4)         = 4
[pid 21709] close(3)                    = 0
[pid 21709] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21709] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21709] write(4, "78", 2)           = 2
[pid 21709] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 21709] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21709] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21709] exit_group(0)               = ?
[pid 21709] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21709, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21710 attached
, child_tidptr=0x555555af35d0) = 21710
[pid 21710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21710] setpgid(0, 0)               = 0
[pid 21710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21710] write(3, "1000", 4)         = 4
[pid 21710] close(3)                    = 0
[pid 21710] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21710] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21710] write(4, "78", 2)           = 2
[pid 21710] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21710] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21710] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21710] exit_group(0)               = ?
[pid 21710] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21710, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21711 attached
, child_tidptr=0x555555af35d0) = 21711
[pid 21711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21711] setpgid(0, 0)               = 0
[pid 21711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21711] write(3, "1000", 4)         = 4
[pid 21711] close(3)                    = 0
[pid 21711] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21711] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21711] write(4, "78", 2)           = 2
[pid 21711] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21711] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21711] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21711] exit_group(0)               = ?
[pid 21711] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21711, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21712 attached
, child_tidptr=0x555555af35d0) = 21712
[pid 21712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21712] setpgid(0, 0)               = 0
[pid 21712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21712] write(3, "1000", 4)         = 4
[pid 21712] close(3)                    = 0
[pid 21712] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21712] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21712] write(4, "78", 2)           = 2
[pid 21712] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21712] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21712] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21712] exit_group(0)               = ?
[pid 21712] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21712, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21713 attached
, child_tidptr=0x555555af35d0) = 21713
[pid 21713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21713] setpgid(0, 0)               = 0
[pid 21713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21713] write(3, "1000", 4)         = 4
[pid 21713] close(3)                    = 0
[pid 21713] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21713] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21713] write(4, "78", 2)           = 2
[pid 21713] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21713] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21713] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21713] exit_group(0)               = ?
[pid 21713] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21713, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21714 attached
, child_tidptr=0x555555af35d0) = 21714
[pid 21714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21714] setpgid(0, 0)               = 0
[pid 21714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21714] write(3, "1000", 4)         = 4
[pid 21714] close(3)                    = 0
[pid 21714] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21714] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21714] write(4, "78", 2)           = 2
[pid 21714] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21714] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21714] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21714] exit_group(0)               = ?
[pid 21714] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21714, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21715 attached
, child_tidptr=0x555555af35d0) = 21715
[pid 21715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21715] setpgid(0, 0)               = 0
[pid 21715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21715] write(3, "1000", 4)         = 4
[pid 21715] close(3)                    = 0
[pid 21715] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21715] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21715] write(4, "78", 2)           = 2
[pid 21715] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21715] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21715] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21715] exit_group(0)               = ?
[pid 21715] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21715, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21716 attached
, child_tidptr=0x555555af35d0) = 21716
[pid 21716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21716] setpgid(0, 0)               = 0
[pid 21716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21716] write(3, "1000", 4)         = 4
[pid 21716] close(3)                    = 0
[pid 21716] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21716] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21716] write(4, "78", 2)           = 2
[pid 21716] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21716] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21716] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21716] exit_group(0)               = ?
[pid 21716] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21716, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21717 attached
, child_tidptr=0x555555af35d0) = 21717
[pid 21717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21717] setpgid(0, 0)               = 0
[pid 21717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21717] write(3, "1000", 4)         = 4
[pid 21717] close(3)                    = 0
[pid 21717] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21717] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21717] write(4, "78", 2)           = 2
[pid 21717] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21717] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21717] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21717] exit_group(0)               = ?
[pid 21717] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21717, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21718 attached
, child_tidptr=0x555555af35d0) = 21718
[pid 21718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21718] setpgid(0, 0)               = 0
[pid 21718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21718] write(3, "1000", 4)         = 4
[pid 21718] close(3)                    = 0
[pid 21718] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21718] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21718] write(4, "78", 2)           = 2
[pid 21718] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21718] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21718] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21718] exit_group(0)               = ?
[pid 21718] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21718, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21719 attached
, child_tidptr=0x555555af35d0) = 21719
[pid 21719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21719] setpgid(0, 0)               = 0
[pid 21719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21719] write(3, "1000", 4)         = 4
[pid 21719] close(3)                    = 0
[pid 21719] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21719] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21719] write(4, "78", 2)           = 2
[pid 21719] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21719] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21719] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21719] exit_group(0)               = ?
[pid 21719] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21719, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21720 attached
, child_tidptr=0x555555af35d0) = 21720
[pid 21720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21720] setpgid(0, 0)               = 0
[pid 21720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21720] write(3, "1000", 4)         = 4
[pid 21720] close(3)                    = 0
[pid 21720] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21720] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21720] write(4, "78", 2)           = 2
[pid 21720] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21720] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21720] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21720] exit_group(0)               = ?
[pid 21720] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21720, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21721 attached
, child_tidptr=0x555555af35d0) = 21721
[pid 21721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21721] setpgid(0, 0)               = 0
[pid 21721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21721] write(3, "1000", 4)         = 4
[pid 21721] close(3)                    = 0
[pid 21721] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21721] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21721] write(4, "78", 2)           = 2
[pid 21721] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21721] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21721] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21721] exit_group(0)               = ?
[pid 21721] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21721, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21722 attached
, child_tidptr=0x555555af35d0) = 21722
[pid 21722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21722] setpgid(0, 0)               = 0
[pid 21722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21722] write(3, "1000", 4)         = 4
[pid 21722] close(3)                    = 0
[pid 21722] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21722] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21722] write(4, "78", 2)           = 2
[pid 21722] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21722] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21722] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21722] exit_group(0)               = ?
[pid 21722] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21722, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21723 attached
, child_tidptr=0x555555af35d0) = 21723
[pid 21723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21723] setpgid(0, 0)               = 0
[pid 21723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21723] write(3, "1000", 4)         = 4
[pid 21723] close(3)                    = 0
[pid 21723] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21723] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21723] write(4, "78", 2)           = 2
[pid 21723] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21723] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21723] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21723] exit_group(0)               = ?
[pid 21723] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21723, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21724 attached
, child_tidptr=0x555555af35d0) = 21724
[pid 21724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21724] setpgid(0, 0)               = 0
[pid 21724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21724] write(3, "1000", 4)         = 4
[pid 21724] close(3)                    = 0
[pid 21724] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21724] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21724] write(4, "78", 2)           = 2
[pid 21724] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21724] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21724] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21724] exit_group(0)               = ?
[pid 21724] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21724, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21725
./strace-static-x86_64: Process 21725 attached
[pid 21725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21725] setpgid(0, 0)               = 0
[pid 21725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21725] write(3, "1000", 4)         = 4
[pid 21725] close(3)                    = 0
[pid 21725] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21725] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21725] write(4, "78", 2)           = 2
[pid 21725] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21725] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21725] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21725] exit_group(0)               = ?
[pid 21725] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21725, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21726
./strace-static-x86_64: Process 21726 attached
[pid 21726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21726] setpgid(0, 0)               = 0
[pid 21726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21726] write(3, "1000", 4)         = 4
[pid 21726] close(3)                    = 0
[pid 21726] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21726] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21726] write(4, "78", 2)           = 2
[pid 21726] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21726] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21726] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21726] exit_group(0)               = ?
[pid 21726] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21726, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21727 attached
, child_tidptr=0x555555af35d0) = 21727
[pid 21727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21727] setpgid(0, 0)               = 0
[pid 21727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21727] write(3, "1000", 4)         = 4
[pid 21727] close(3)                    = 0
[pid 21727] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21727] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21727] write(4, "78", 2)           = 2
[pid 21727] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21727] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21727] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21727] exit_group(0)               = ?
[pid 21727] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21727, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21728
./strace-static-x86_64: Process 21728 attached
[pid 21728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21728] setpgid(0, 0)               = 0
[pid 21728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21728] write(3, "1000", 4)         = 4
[pid 21728] close(3)                    = 0
[pid 21728] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21728] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21728] write(4, "78", 2)           = 2
[pid 21728] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21728] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21728] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21728] exit_group(0)               = ?
[pid 21728] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21728, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21729 attached
 <unfinished ...>
[pid 21729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21729] setpgid(0, 0)               = 0
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 21729
[pid 21729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21729] write(3, "1000", 4)         = 4
[pid 21729] close(3)                    = 0
[pid 21729] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21729] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21729] write(4, "78", 2)           = 2
[pid 21729] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21729] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21729] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21729] exit_group(0)               = ?
[pid 21729] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21729, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21730 attached
, child_tidptr=0x555555af35d0) = 21730
[pid 21730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21730] setpgid(0, 0)               = 0
[pid 21730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21730] write(3, "1000", 4)         = 4
[pid 21730] close(3)                    = 0
[pid 21730] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21730] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21730] write(4, "78", 2)           = 2
[pid 21730] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21730] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21730] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21730] exit_group(0)               = ?
[pid 21730] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21730, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21731 attached
, child_tidptr=0x555555af35d0) = 21731
[pid 21731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21731] setpgid(0, 0)               = 0
[pid 21731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21731] write(3, "1000", 4)         = 4
[pid 21731] close(3)                    = 0
[pid 21731] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21731] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21731] write(4, "78", 2)           = 2
[pid 21731] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21731] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21731] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21731] exit_group(0)               = ?
[pid 21731] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21731, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21732 attached
, child_tidptr=0x555555af35d0) = 21732
[pid 21732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21732] setpgid(0, 0)               = 0
[pid 21732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21732] write(3, "1000", 4)         = 4
[pid 21732] close(3)                    = 0
[pid 21732] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21732] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21732] write(4, "78", 2)           = 2
[pid 21732] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21732] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21732] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21732] exit_group(0)               = ?
[pid 21732] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21732, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21733 attached
, child_tidptr=0x555555af35d0) = 21733
[pid 21733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21733] setpgid(0, 0)               = 0
[pid 21733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21733] write(3, "1000", 4)         = 4
[pid 21733] close(3)                    = 0
[pid 21733] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21733] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21733] write(4, "78", 2)           = 2
[pid 21733] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21733] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21733] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21733] exit_group(0)               = ?
[pid 21733] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21733, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21734 attached
, child_tidptr=0x555555af35d0) = 21734
[pid 21734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21734] setpgid(0, 0)               = 0
[pid 21734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21734] write(3, "1000", 4)         = 4
[pid 21734] close(3)                    = 0
[pid 21734] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21734] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21734] write(4, "78", 2)           = 2
[pid 21734] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21734] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21734] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21734] exit_group(0)               = ?
[pid 21734] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21734, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21735 attached
, child_tidptr=0x555555af35d0) = 21735
[pid 21735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21735] setpgid(0, 0)               = 0
[pid 21735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21735] write(3, "1000", 4)         = 4
[pid 21735] close(3)                    = 0
[pid 21735] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21735] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21735] write(4, "78", 2)           = 2
[pid 21735] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21735] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21735] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21735] exit_group(0)               = ?
[pid 21735] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21735, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21736 attached
, child_tidptr=0x555555af35d0) = 21736
[pid 21736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21736] setpgid(0, 0)               = 0
[pid 21736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21736] write(3, "1000", 4)         = 4
[pid 21736] close(3)                    = 0
[pid 21736] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21736] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21736] write(4, "78", 2)           = 2
[pid 21736] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21736] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21736] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21736] exit_group(0)               = ?
[pid 21736] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21736, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21737 attached
, child_tidptr=0x555555af35d0) = 21737
[pid 21737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21737] setpgid(0, 0)               = 0
[pid 21737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21737] write(3, "1000", 4)         = 4
[pid 21737] close(3)                    = 0
[pid 21737] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21737] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21737] write(4, "78", 2)           = 2
[pid 21737] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21737] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21737] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21737] exit_group(0)               = ?
[pid 21737] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21737, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21738 attached
, child_tidptr=0x555555af35d0) = 21738
[pid 21738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21738] setpgid(0, 0)               = 0
[pid 21738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21738] write(3, "1000", 4)         = 4
[pid 21738] close(3)                    = 0
[pid 21738] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21738] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21738] write(4, "78", 2)           = 2
[pid 21738] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21738] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21738] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21738] exit_group(0)               = ?
[pid 21738] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21738, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21739 attached
, child_tidptr=0x555555af35d0) = 21739
[pid 21739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21739] setpgid(0, 0)               = 0
[pid 21739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21739] write(3, "1000", 4)         = 4
[pid 21739] close(3)                    = 0
[pid 21739] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21739] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21739] write(4, "78", 2)           = 2
[pid 21739] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21739] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21739] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21739] exit_group(0)               = ?
[pid 21739] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21739, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21740 attached
, child_tidptr=0x555555af35d0) = 21740
[pid 21740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21740] setpgid(0, 0)               = 0
[pid 21740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21740] write(3, "1000", 4)         = 4
[pid 21740] close(3)                    = 0
[pid 21740] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21740] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21740] write(4, "78", 2)           = 2
[pid 21740] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21740] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21740] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21740] exit_group(0)               = ?
[pid 21740] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21740, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21741 attached
, child_tidptr=0x555555af35d0) = 21741
[pid 21741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21741] setpgid(0, 0)               = 0
[pid 21741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21741] write(3, "1000", 4)         = 4
[pid 21741] close(3)                    = 0
[pid 21741] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21741] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21741] write(4, "78", 2)           = 2
[pid 21741] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21741] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21741] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21741] exit_group(0)               = ?
[pid 21741] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21741, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21742 attached
, child_tidptr=0x555555af35d0) = 21742
[pid 21742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21742] setpgid(0, 0)               = 0
[pid 21742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21742] write(3, "1000", 4)         = 4
[pid 21742] close(3)                    = 0
[pid 21742] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21742] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21742] write(4, "78", 2)           = 2
[pid 21742] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21742] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21742] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21742] exit_group(0)               = ?
[pid 21742] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21742, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21743
./strace-static-x86_64: Process 21743 attached
[pid 21743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21743] setpgid(0, 0)               = 0
[pid 21743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21743] write(3, "1000", 4)         = 4
[pid 21743] close(3)                    = 0
[pid 21743] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21743] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21743] write(4, "78", 2)           = 2
[pid 21743] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21743] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21743] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21743] exit_group(0)               = ?
[pid 21743] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21743, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21744 attached
, child_tidptr=0x555555af35d0) = 21744
[pid 21744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21744] setpgid(0, 0)               = 0
[pid 21744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21744] write(3, "1000", 4)         = 4
[pid 21744] close(3)                    = 0
[pid 21744] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21744] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21744] write(4, "78", 2)           = 2
[pid 21744] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21744] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21744] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21744] exit_group(0)               = ?
[pid 21744] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21744, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21745 attached
, child_tidptr=0x555555af35d0) = 21745
[pid 21745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21745] setpgid(0, 0)               = 0
[pid 21745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21745] write(3, "1000", 4)         = 4
[pid 21745] close(3)                    = 0
[pid 21745] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21745] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21745] write(4, "78", 2)           = 2
[pid 21745] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21745] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21745] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21745] exit_group(0)               = ?
[pid 21745] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21745, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21746 attached
, child_tidptr=0x555555af35d0) = 21746
[pid 21746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21746] setpgid(0, 0)               = 0
[pid 21746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21746] write(3, "1000", 4)         = 4
[pid 21746] close(3)                    = 0
[pid 21746] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21746] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21746] write(4, "78", 2)           = 2
[pid 21746] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21746] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21746] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21746] exit_group(0)               = ?
[pid 21746] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21746, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21747 attached
, child_tidptr=0x555555af35d0) = 21747
[pid 21747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21747] setpgid(0, 0)               = 0
[pid 21747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21747] write(3, "1000", 4)         = 4
[pid 21747] close(3)                    = 0
[pid 21747] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21747] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21747] write(4, "78", 2)           = 2
[pid 21747] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21747] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21747] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21747] exit_group(0)               = ?
[pid 21747] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21747, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21748 attached
, child_tidptr=0x555555af35d0) = 21748
[pid 21748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21748] setpgid(0, 0)               = 0
[pid 21748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21748] write(3, "1000", 4)         = 4
[pid 21748] close(3)                    = 0
[pid 21748] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21748] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21748] write(4, "78", 2)           = 2
[pid 21748] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21748] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21748] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21748] exit_group(0)               = ?
[pid 21748] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21748, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21749 attached
, child_tidptr=0x555555af35d0) = 21749
[pid 21749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21749] setpgid(0, 0)               = 0
[pid 21749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21749] write(3, "1000", 4)         = 4
[pid 21749] close(3)                    = 0
[pid 21749] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21749] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21749] write(4, "78", 2)           = 2
[pid 21749] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21749] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21749] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21749] exit_group(0)               = ?
[pid 21749] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21749, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21750 attached
, child_tidptr=0x555555af35d0) = 21750
[pid 21750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21750] setpgid(0, 0)               = 0
[pid 21750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21750] write(3, "1000", 4)         = 4
[pid 21750] close(3)                    = 0
[pid 21750] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21750] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21750] write(4, "78", 2)           = 2
[pid 21750] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21750] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21750] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21750] exit_group(0)               = ?
[pid 21750] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21750, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21751 attached
, child_tidptr=0x555555af35d0) = 21751
[pid 21751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21751] setpgid(0, 0)               = 0
[pid 21751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21751] write(3, "1000", 4)         = 4
[pid 21751] close(3)                    = 0
[pid 21751] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21751] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21751] write(4, "78", 2)           = 2
[pid 21751] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21751] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21751] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21751] exit_group(0)               = ?
[pid 21751] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21751, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21752 attached
, child_tidptr=0x555555af35d0) = 21752
[pid 21752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21752] setpgid(0, 0)               = 0
[pid 21752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21752] write(3, "1000", 4)         = 4
[pid 21752] close(3)                    = 0
[pid 21752] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21752] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21752] write(4, "78", 2)           = 2
[pid 21752] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21752] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21752] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21752] exit_group(0)               = ?
[pid 21752] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21752, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21753 attached
, child_tidptr=0x555555af35d0) = 21753
[pid 21753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21753] setpgid(0, 0)               = 0
[pid 21753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21753] write(3, "1000", 4)         = 4
[pid 21753] close(3)                    = 0
[pid 21753] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21753] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21753] write(4, "78", 2)           = 2
[pid 21753] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21753] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21753] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21753] exit_group(0)               = ?
[pid 21753] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21753, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21754 attached
, child_tidptr=0x555555af35d0) = 21754
[pid 21754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21754] setpgid(0, 0)               = 0
[pid 21754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21754] write(3, "1000", 4)         = 4
[pid 21754] close(3)                    = 0
[pid 21754] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21754] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21754] write(4, "78", 2)           = 2
[pid 21754] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21754] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21754] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21754] exit_group(0)               = ?
[pid 21754] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21754, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21755 attached
, child_tidptr=0x555555af35d0) = 21755
[pid 21755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21755] setpgid(0, 0)               = 0
[pid 21755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21755] write(3, "1000", 4)         = 4
[pid 21755] close(3)                    = 0
[pid 21755] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21755] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21755] write(4, "78", 2)           = 2
[pid 21755] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21755] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21755] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 21755] exit_group(0)               = ?
[pid 21755] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21755, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21756
./strace-static-x86_64: Process 21756 attached
[pid 21756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21756] setpgid(0, 0)               = 0
[pid 21756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21756] write(3, "1000", 4)         = 4
[pid 21756] close(3)                    = 0
[pid 21756] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21756] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21756] write(4, "78", 2)           = 2
[pid 21756] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 21756] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21756] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21756] exit_group(0)               = ?
[pid 21756] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21756, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21757 attached
, child_tidptr=0x555555af35d0) = 21757
[pid 21757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21757] setpgid(0, 0)               = 0
[pid 21757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21757] write(3, "1000", 4)         = 4
[pid 21757] close(3)                    = 0
[pid 21757] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21757] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21757] write(4, "78", 2)           = 2
[pid 21757] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21757] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21757] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21757] exit_group(0)               = ?
[pid 21757] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21757, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21758 attached
, child_tidptr=0x555555af35d0) = 21758
[pid 21758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21758] setpgid(0, 0)               = 0
[pid 21758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21758] write(3, "1000", 4)         = 4
[pid 21758] close(3)                    = 0
[pid 21758] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21758] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21758] write(4, "78", 2)           = 2
[pid 21758] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21758] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21758] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21758] exit_group(0)               = ?
[pid 21758] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21758, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21759 attached
, child_tidptr=0x555555af35d0) = 21759
[pid 21759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21759] setpgid(0, 0)               = 0
[pid 21759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21759] write(3, "1000", 4)         = 4
[pid 21759] close(3)                    = 0
[pid 21759] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21759] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21759] write(4, "78", 2)           = 2
[pid 21759] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21759] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21759] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21759] exit_group(0)               = ?
[pid 21759] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21759, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21760 attached
, child_tidptr=0x555555af35d0) = 21760
[pid 21760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21760] setpgid(0, 0)               = 0
[pid 21760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21760] write(3, "1000", 4)         = 4
[pid 21760] close(3)                    = 0
[pid 21760] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21760] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21760] write(4, "78", 2)           = 2
[pid 21760] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21760] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21760] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21760] exit_group(0)               = ?
[pid 21760] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21760, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21761
./strace-static-x86_64: Process 21761 attached
[pid 21761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21761] setpgid(0, 0)               = 0
[pid 21761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21761] write(3, "1000", 4)         = 4
[pid 21761] close(3)                    = 0
[pid 21761] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21761] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21761] write(4, "78", 2)           = 2
[pid 21761] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21761] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21761] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21761] exit_group(0)               = ?
[pid 21761] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21761, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21762 attached
, child_tidptr=0x555555af35d0) = 21762
[pid 21762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21762] setpgid(0, 0)               = 0
[pid 21762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21762] write(3, "1000", 4)         = 4
[pid 21762] close(3)                    = 0
[pid 21762] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21762] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21762] write(4, "78", 2)           = 2
[pid 21762] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21762] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21762] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21762] exit_group(0)               = ?
[pid 21762] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21762, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21763 attached
, child_tidptr=0x555555af35d0) = 21763
[pid 21763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21763] setpgid(0, 0)               = 0
[pid 21763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21763] write(3, "1000", 4)         = 4
[pid 21763] close(3)                    = 0
[pid 21763] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21763] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21763] write(4, "78", 2)           = 2
[pid 21763] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21763] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21763] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21763] exit_group(0)               = ?
[pid 21763] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21763, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21764 attached
, child_tidptr=0x555555af35d0) = 21764
[pid 21764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21764] setpgid(0, 0)               = 0
[pid 21764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21764] write(3, "1000", 4)         = 4
[pid 21764] close(3)                    = 0
[pid 21764] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21764] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21764] write(4, "78", 2)           = 2
[pid 21764] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21764] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21764] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21764] exit_group(0)               = ?
[pid 21764] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21764, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21765 attached
, child_tidptr=0x555555af35d0) = 21765
[pid 21765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21765] setpgid(0, 0)               = 0
[pid 21765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21765] write(3, "1000", 4)         = 4
[pid 21765] close(3)                    = 0
[pid 21765] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21765] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21765] write(4, "78", 2)           = 2
[pid 21765] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21765] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21765] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21765] exit_group(0)               = ?
[pid 21765] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21765, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21766 attached
, child_tidptr=0x555555af35d0) = 21766
[pid 21766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21766] setpgid(0, 0)               = 0
[pid 21766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21766] write(3, "1000", 4)         = 4
[pid 21766] close(3)                    = 0
[pid 21766] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21766] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21766] write(4, "78", 2)           = 2
[pid 21766] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21766] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21766] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21766] exit_group(0)               = ?
[pid 21766] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21766, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21767 attached
, child_tidptr=0x555555af35d0) = 21767
[pid 21767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21767] setpgid(0, 0)               = 0
[pid 21767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21767] write(3, "1000", 4)         = 4
[pid 21767] close(3)                    = 0
[pid 21767] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21767] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21767] write(4, "78", 2)           = 2
[pid 21767] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21767] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21767] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21767] exit_group(0)               = ?
[pid 21767] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21767, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21768 attached
, child_tidptr=0x555555af35d0) = 21768
[pid 21768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21768] setpgid(0, 0)               = 0
[pid 21768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21768] write(3, "1000", 4)         = 4
[pid 21768] close(3)                    = 0
[pid 21768] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21768] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21768] write(4, "78", 2)           = 2
[pid 21768] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21768] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21768] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21768] exit_group(0)               = ?
[pid 21768] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21768, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21769 attached
, child_tidptr=0x555555af35d0) = 21769
[pid 21769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21769] setpgid(0, 0)               = 0
[pid 21769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21769] write(3, "1000", 4)         = 4
[pid 21769] close(3)                    = 0
[pid 21769] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21769] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21769] write(4, "78", 2)           = 2
[pid 21769] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21769] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21769] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21769] exit_group(0)               = ?
[pid 21769] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21769, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21770 attached
, child_tidptr=0x555555af35d0) = 21770
[pid 21770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21770] setpgid(0, 0)               = 0
[pid 21770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21770] write(3, "1000", 4)         = 4
[pid 21770] close(3)                    = 0
[pid 21770] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21770] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21770] write(4, "78", 2)           = 2
[pid 21770] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21770] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21770] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21770] exit_group(0)               = ?
[pid 21770] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21770, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21771 attached
, child_tidptr=0x555555af35d0) = 21771
[pid 21771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21771] setpgid(0, 0)               = 0
[pid 21771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21771] write(3, "1000", 4)         = 4
[pid 21771] close(3)                    = 0
[pid 21771] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21771] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21771] write(4, "78", 2)           = 2
[pid 21771] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21771] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21771] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21771] exit_group(0)               = ?
[pid 21771] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21771, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21772 attached
, child_tidptr=0x555555af35d0) = 21772
[pid 21772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21772] setpgid(0, 0)               = 0
[pid 21772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21772] write(3, "1000", 4)         = 4
[pid 21772] close(3)                    = 0
[pid 21772] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21772] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21772] write(4, "78", 2)           = 2
[pid 21772] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21772] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21772] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21772] exit_group(0)               = ?
[pid 21772] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21772, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21773 attached
, child_tidptr=0x555555af35d0) = 21773
[pid 21773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21773] setpgid(0, 0)               = 0
[pid 21773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21773] write(3, "1000", 4)         = 4
[pid 21773] close(3)                    = 0
[pid 21773] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21773] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21773] write(4, "78", 2)           = 2
[pid 21773] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21773] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21773] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21773] exit_group(0)               = ?
[pid 21773] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21773, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21774 attached
, child_tidptr=0x555555af35d0) = 21774
[pid 21774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21774] setpgid(0, 0)               = 0
[pid 21774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21774] write(3, "1000", 4)         = 4
[pid 21774] close(3)                    = 0
[pid 21774] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21774] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21774] write(4, "78", 2)           = 2
[pid 21774] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21774] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21774] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21774] exit_group(0)               = ?
[pid 21774] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21774, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21775 attached
, child_tidptr=0x555555af35d0) = 21775
[pid 21775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21775] setpgid(0, 0)               = 0
[pid 21775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21775] write(3, "1000", 4)         = 4
[pid 21775] close(3)                    = 0
[pid 21775] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21775] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21775] write(4, "78", 2)           = 2
[pid 21775] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21775] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21775] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21775] exit_group(0)               = ?
[pid 21775] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21775, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21776 attached
 <unfinished ...>
[pid 21776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 21776
[pid 21776] setpgid(0, 0)               = 0
[pid 21776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21776] write(3, "1000", 4)         = 4
[pid 21776] close(3)                    = 0
[pid 21776] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21776] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21776] write(4, "78", 2)           = 2
[pid 21776] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21776] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21776] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21776] exit_group(0)               = ?
[pid 21776] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21776, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21777 attached
, child_tidptr=0x555555af35d0) = 21777
[pid 21777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21777] setpgid(0, 0)               = 0
[pid 21777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21777] write(3, "1000", 4)         = 4
[pid 21777] close(3)                    = 0
[pid 21777] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21777] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21777] write(4, "78", 2)           = 2
[pid 21777] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21777] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21777] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21777] exit_group(0)               = ?
[pid 21777] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21777, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21778 attached
, child_tidptr=0x555555af35d0) = 21778
[pid 21778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21778] setpgid(0, 0)               = 0
[pid 21778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21778] write(3, "1000", 4)         = 4
[pid 21778] close(3)                    = 0
[pid 21778] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21778] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21778] write(4, "78", 2)           = 2
[pid 21778] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21778] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21778] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21778] exit_group(0)               = ?
[pid 21778] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21778, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21779 attached
, child_tidptr=0x555555af35d0) = 21779
[pid 21779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21779] setpgid(0, 0)               = 0
[pid 21779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21779] write(3, "1000", 4)         = 4
[pid 21779] close(3)                    = 0
[pid 21779] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21779] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21779] write(4, "78", 2)           = 2
[pid 21779] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21779] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21779] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21779] exit_group(0)               = ?
[pid 21779] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21779, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21780 attached
, child_tidptr=0x555555af35d0) = 21780
[pid 21780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21780] setpgid(0, 0)               = 0
[pid 21780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21780] write(3, "1000", 4)         = 4
[pid 21780] close(3)                    = 0
[pid 21780] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21780] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21780] write(4, "78", 2)           = 2
[pid 21780] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21780] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21780] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21780] exit_group(0)               = ?
[pid 21780] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21780, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21781 attached
, child_tidptr=0x555555af35d0) = 21781
[pid 21781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21781] setpgid(0, 0)               = 0
[pid 21781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21781] write(3, "1000", 4)         = 4
[pid 21781] close(3)                    = 0
[pid 21781] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21781] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21781] write(4, "78", 2)           = 2
[pid 21781] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21781] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21781] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21781] exit_group(0)               = ?
[pid 21781] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21781, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21782 attached
, child_tidptr=0x555555af35d0) = 21782
[pid 21782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21782] setpgid(0, 0)               = 0
[pid 21782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21782] write(3, "1000", 4)         = 4
[pid 21782] close(3)                    = 0
[pid 21782] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21782] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21782] write(4, "78", 2)           = 2
[pid 21782] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21782] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21782] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21782] exit_group(0)               = ?
[pid 21782] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21782, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21783 attached
, child_tidptr=0x555555af35d0) = 21783
[pid 21783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21783] setpgid(0, 0)               = 0
[pid 21783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21783] write(3, "1000", 4)         = 4
[pid 21783] close(3)                    = 0
[pid 21783] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21783] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21783] write(4, "78", 2)           = 2
[pid 21783] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21783] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21783] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21783] exit_group(0)               = ?
[pid 21783] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21783, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21784
./strace-static-x86_64: Process 21784 attached
[pid 21784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21784] setpgid(0, 0)               = 0
[pid 21784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21784] write(3, "1000", 4)         = 4
[pid 21784] close(3)                    = 0
[pid 21784] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21784] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21784] write(4, "78", 2)           = 2
[pid 21784] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21784] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21784] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21784] exit_group(0)               = ?
[pid 21784] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21784, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21785 attached
, child_tidptr=0x555555af35d0) = 21785
[pid 21785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21785] setpgid(0, 0)               = 0
[pid 21785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21785] write(3, "1000", 4)         = 4
[pid 21785] close(3)                    = 0
[pid 21785] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21785] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21785] write(4, "78", 2)           = 2
[pid 21785] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21785] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21785] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21785] exit_group(0)               = ?
[pid 21785] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21785, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21786 attached
, child_tidptr=0x555555af35d0) = 21786
[pid 21786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21786] setpgid(0, 0)               = 0
[pid 21786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21786] write(3, "1000", 4)         = 4
[pid 21786] close(3)                    = 0
[pid 21786] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21786] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21786] write(4, "78", 2)           = 2
[pid 21786] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21786] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21786] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21786] exit_group(0)               = ?
[pid 21786] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21786, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21787 attached
, child_tidptr=0x555555af35d0) = 21787
[pid 21787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21787] setpgid(0, 0)               = 0
[pid 21787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21787] write(3, "1000", 4)         = 4
[pid 21787] close(3)                    = 0
[pid 21787] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21787] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21787] write(4, "78", 2)           = 2
[pid 21787] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21787] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21787] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21787] exit_group(0)               = ?
[pid 21787] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21787, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21788 attached
, child_tidptr=0x555555af35d0) = 21788
[pid 21788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21788] setpgid(0, 0)               = 0
[pid 21788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21788] write(3, "1000", 4)         = 4
[pid 21788] close(3)                    = 0
[pid 21788] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21788] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21788] write(4, "78", 2)           = 2
[pid 21788] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21788] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21788] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21788] exit_group(0)               = ?
[pid 21788] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21788, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21789 attached
, child_tidptr=0x555555af35d0) = 21789
[pid 21789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21789] setpgid(0, 0)               = 0
[pid 21789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21789] write(3, "1000", 4)         = 4
[pid 21789] close(3)                    = 0
[pid 21789] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21789] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21789] write(4, "78", 2)           = 2
[pid 21789] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21789] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21789] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21789] exit_group(0)               = ?
[pid 21789] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21789, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21790 attached
, child_tidptr=0x555555af35d0) = 21790
[pid 21790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21790] setpgid(0, 0)               = 0
[pid 21790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21790] write(3, "1000", 4)         = 4
[pid 21790] close(3)                    = 0
[pid 21790] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21790] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21790] write(4, "78", 2)           = 2
[pid 21790] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21790] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21790] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21790] exit_group(0)               = ?
[pid 21790] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21790, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21791
./strace-static-x86_64: Process 21791 attached
[pid 21791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21791] setpgid(0, 0)               = 0
[pid 21791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21791] write(3, "1000", 4)         = 4
[pid 21791] close(3)                    = 0
[pid 21791] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21791] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21791] write(4, "78", 2)           = 2
[pid 21791] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21791] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21791] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21791] exit_group(0)               = ?
[pid 21791] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21791, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21792 attached
, child_tidptr=0x555555af35d0) = 21792
[pid 21792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21792] setpgid(0, 0)               = 0
[pid 21792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21792] write(3, "1000", 4)         = 4
[pid 21792] close(3)                    = 0
[pid 21792] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21792] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21792] write(4, "78", 2)           = 2
[pid 21792] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21792] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21792] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 21792] exit_group(0)               = ?
[pid 21792] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21792, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21793 attached
, child_tidptr=0x555555af35d0) = 21793
[pid 21793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21793] setpgid(0, 0)               = 0
[pid 21793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21793] write(3, "1000", 4)         = 4
[pid 21793] close(3)                    = 0
[pid 21793] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21793] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21793] write(4, "78", 2)           = 2
[pid 21793] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 21793] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21793] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21793] exit_group(0)               = ?
[pid 21793] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21793, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21794 attached
, child_tidptr=0x555555af35d0) = 21794
[pid 21794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21794] setpgid(0, 0)               = 0
[pid 21794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21794] write(3, "1000", 4)         = 4
[pid 21794] close(3)                    = 0
[pid 21794] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21794] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21794] write(4, "78", 2)           = 2
[pid 21794] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21794] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21794] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21794] exit_group(0)               = ?
[pid 21794] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21794, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21795 attached
, child_tidptr=0x555555af35d0) = 21795
[pid 21795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21795] setpgid(0, 0)               = 0
[pid 21795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21795] write(3, "1000", 4)         = 4
[pid 21795] close(3)                    = 0
[pid 21795] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21795] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21795] write(4, "78", 2)           = 2
[pid 21795] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21795] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21795] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21795] exit_group(0)               = ?
[pid 21795] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21795, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21796 attached
, child_tidptr=0x555555af35d0) = 21796
[pid 21796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21796] setpgid(0, 0)               = 0
[pid 21796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21796] write(3, "1000", 4)         = 4
[pid 21796] close(3)                    = 0
[pid 21796] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21796] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21796] write(4, "78", 2)           = 2
[pid 21796] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21796] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21796] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21796] exit_group(0)               = ?
[pid 21796] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21796, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21797
./strace-static-x86_64: Process 21797 attached
[pid 21797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21797] setpgid(0, 0)               = 0
[pid 21797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21797] write(3, "1000", 4)         = 4
[pid 21797] close(3)                    = 0
[pid 21797] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21797] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21797] write(4, "78", 2)           = 2
[pid 21797] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21797] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21797] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21797] exit_group(0)               = ?
[pid 21797] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21797, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21798 attached
, child_tidptr=0x555555af35d0) = 21798
[pid 21798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21798] setpgid(0, 0)               = 0
[pid 21798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21798] write(3, "1000", 4)         = 4
[pid 21798] close(3)                    = 0
[pid 21798] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21798] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21798] write(4, "78", 2)           = 2
[pid 21798] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21798] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21798] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21798] exit_group(0)               = ?
[pid 21798] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21798, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21799 attached
, child_tidptr=0x555555af35d0) = 21799
[pid 21799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21799] setpgid(0, 0)               = 0
[pid 21799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21799] write(3, "1000", 4)         = 4
[pid 21799] close(3)                    = 0
[pid 21799] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21799] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21799] write(4, "78", 2)           = 2
[pid 21799] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21799] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21799] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21799] exit_group(0)               = ?
[pid 21799] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21799, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21800 attached
, child_tidptr=0x555555af35d0) = 21800
[pid 21800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21800] setpgid(0, 0)               = 0
[pid 21800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21800] write(3, "1000", 4)         = 4
[pid 21800] close(3)                    = 0
[pid 21800] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21800] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21800] write(4, "78", 2)           = 2
[pid 21800] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21800] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21800] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21800] exit_group(0)               = ?
[pid 21800] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21800, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21801 attached
, child_tidptr=0x555555af35d0) = 21801
[pid 21801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21801] setpgid(0, 0)               = 0
[pid 21801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21801] write(3, "1000", 4)         = 4
[pid 21801] close(3)                    = 0
[pid 21801] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21801] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21801] write(4, "78", 2)           = 2
[pid 21801] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21801] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21801] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21801] exit_group(0)               = ?
[pid 21801] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21801, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21802
./strace-static-x86_64: Process 21802 attached
[pid 21802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21802] setpgid(0, 0)               = 0
[pid 21802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21802] write(3, "1000", 4)         = 4
[pid 21802] close(3)                    = 0
[pid 21802] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21802] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21802] write(4, "78", 2)           = 2
[pid 21802] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21802] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21802] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21802] exit_group(0)               = ?
[pid 21802] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21802, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21803 attached
, child_tidptr=0x555555af35d0) = 21803
[pid 21803] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21803] setpgid(0, 0)               = 0
[pid 21803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21803] write(3, "1000", 4)         = 4
[pid 21803] close(3)                    = 0
[pid 21803] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21803] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21803] write(4, "78", 2)           = 2
[pid 21803] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21803] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21803] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21803] exit_group(0)               = ?
[pid 21803] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21803, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21804 attached
, child_tidptr=0x555555af35d0) = 21804
[pid 21804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21804] setpgid(0, 0)               = 0
[pid 21804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21804] write(3, "1000", 4)         = 4
[pid 21804] close(3)                    = 0
[pid 21804] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21804] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21804] write(4, "78", 2)           = 2
[pid 21804] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21804] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21804] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21804] exit_group(0)               = ?
[pid 21804] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21804, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21805 attached
, child_tidptr=0x555555af35d0) = 21805
[pid 21805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21805] setpgid(0, 0)               = 0
[pid 21805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21805] write(3, "1000", 4)         = 4
[pid 21805] close(3)                    = 0
[pid 21805] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21805] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21805] write(4, "78", 2)           = 2
[pid 21805] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21805] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21805] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21805] exit_group(0)               = ?
[pid 21805] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21805, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21806 attached
, child_tidptr=0x555555af35d0) = 21806
[pid 21806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21806] setpgid(0, 0)               = 0
[pid 21806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21806] write(3, "1000", 4)         = 4
[pid 21806] close(3)                    = 0
[pid 21806] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21806] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21806] write(4, "78", 2)           = 2
[pid 21806] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21806] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21806] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21806] exit_group(0)               = ?
[pid 21806] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21806, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21807
./strace-static-x86_64: Process 21807 attached
[pid 21807] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21807] setpgid(0, 0)               = 0
[pid 21807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21807] write(3, "1000", 4)         = 4
[pid 21807] close(3)                    = 0
[pid 21807] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21807] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21807] write(4, "78", 2)           = 2
[pid 21807] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21807] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21807] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21807] exit_group(0)               = ?
[pid 21807] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21807, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21808 attached
, child_tidptr=0x555555af35d0) = 21808
[pid 21808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21808] setpgid(0, 0)               = 0
[pid 21808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21808] write(3, "1000", 4)         = 4
[pid 21808] close(3)                    = 0
[pid 21808] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21808] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21808] write(4, "78", 2)           = 2
[pid 21808] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21808] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21808] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21808] exit_group(0)               = ?
[pid 21808] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21808, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21809 attached
, child_tidptr=0x555555af35d0) = 21809
[pid 21809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21809] setpgid(0, 0)               = 0
[pid 21809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21809] write(3, "1000", 4)         = 4
[pid 21809] close(3)                    = 0
[pid 21809] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21809] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21809] write(4, "78", 2)           = 2
[pid 21809] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21809] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21809] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21809] exit_group(0)               = ?
[pid 21809] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21809, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21810 attached
, child_tidptr=0x555555af35d0) = 21810
[pid 21810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21810] setpgid(0, 0)               = 0
[pid 21810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21810] write(3, "1000", 4)         = 4
[pid 21810] close(3)                    = 0
[pid 21810] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21810] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21810] write(4, "78", 2)           = 2
[pid 21810] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21810] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21810] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21810] exit_group(0)               = ?
[pid 21810] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21810, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21811 attached
, child_tidptr=0x555555af35d0) = 21811
[pid 21811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21811] setpgid(0, 0)               = 0
[pid 21811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21811] write(3, "1000", 4)         = 4
[pid 21811] close(3)                    = 0
[pid 21811] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21811] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21811] write(4, "78", 2)           = 2
[pid 21811] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21811] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21811] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21811] exit_group(0)               = ?
[pid 21811] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21811, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21812 attached
, child_tidptr=0x555555af35d0) = 21812
[pid 21812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21812] setpgid(0, 0)               = 0
[pid 21812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21812] write(3, "1000", 4)         = 4
[pid 21812] close(3)                    = 0
[pid 21812] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21812] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21812] write(4, "78", 2)           = 2
[pid 21812] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21812] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21812] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21812] exit_group(0)               = ?
[pid 21812] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21812, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21813 attached
, child_tidptr=0x555555af35d0) = 21813
[pid 21813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21813] setpgid(0, 0)               = 0
[pid 21813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21813] write(3, "1000", 4)         = 4
[pid 21813] close(3)                    = 0
[pid 21813] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21813] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21813] write(4, "78", 2)           = 2
[pid 21813] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21813] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21813] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21813] exit_group(0)               = ?
[pid 21813] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21813, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21814 attached
, child_tidptr=0x555555af35d0) = 21814
[pid 21814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21814] setpgid(0, 0)               = 0
[pid 21814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21814] write(3, "1000", 4)         = 4
[pid 21814] close(3)                    = 0
[pid 21814] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21814] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21814] write(4, "78", 2)           = 2
[pid 21814] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21814] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21814] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21814] exit_group(0)               = ?
[pid 21814] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21814, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21815 attached
, child_tidptr=0x555555af35d0) = 21815
[pid 21815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21815] setpgid(0, 0)               = 0
[pid 21815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21815] write(3, "1000", 4)         = 4
[pid 21815] close(3)                    = 0
[pid 21815] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21815] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21815] write(4, "78", 2)           = 2
[pid 21815] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21815] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21815] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21815] exit_group(0)               = ?
[pid 21815] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21815, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21816 attached
, child_tidptr=0x555555af35d0) = 21816
[pid 21816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21816] setpgid(0, 0)               = 0
[pid 21816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21816] write(3, "1000", 4)         = 4
[pid 21816] close(3)                    = 0
[pid 21816] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21816] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21816] write(4, "78", 2)           = 2
[pid 21816] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21816] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21816] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21816] exit_group(0)               = ?
[pid 21816] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21816, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21817 attached
, child_tidptr=0x555555af35d0) = 21817
[pid 21817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21817] setpgid(0, 0)               = 0
[pid 21817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21817] write(3, "1000", 4)         = 4
[pid 21817] close(3)                    = 0
[pid 21817] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21817] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21817] write(4, "78", 2)           = 2
[pid 21817] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21817] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21817] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21817] exit_group(0)               = ?
[pid 21817] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21817, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21818 attached
, child_tidptr=0x555555af35d0) = 21818
[pid 21818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21818] setpgid(0, 0)               = 0
[pid 21818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21818] write(3, "1000", 4)         = 4
[pid 21818] close(3)                    = 0
[pid 21818] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21818] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21818] write(4, "78", 2)           = 2
[pid 21818] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21818] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21818] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21818] exit_group(0)               = ?
[pid 21818] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21818, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21819 attached
, child_tidptr=0x555555af35d0) = 21819
[pid 21819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21819] setpgid(0, 0)               = 0
[pid 21819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21819] write(3, "1000", 4)         = 4
[pid 21819] close(3)                    = 0
[pid 21819] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21819] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21819] write(4, "78", 2)           = 2
[pid 21819] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21819] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21819] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21819] exit_group(0)               = ?
[pid 21819] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21819, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21820
./strace-static-x86_64: Process 21820 attached
[pid 21820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21820] setpgid(0, 0)               = 0
[pid 21820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21820] write(3, "1000", 4)         = 4
[pid 21820] close(3)                    = 0
[pid 21820] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21820] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21820] write(4, "78", 2)           = 2
[pid 21820] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21820] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21820] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21820] exit_group(0)               = ?
[pid 21820] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21820, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21821 attached
, child_tidptr=0x555555af35d0) = 21821
[pid 21821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21821] setpgid(0, 0)               = 0
[pid 21821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21821] write(3, "1000", 4)         = 4
[pid 21821] close(3)                    = 0
[pid 21821] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21821] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21821] write(4, "78", 2)           = 2
[pid 21821] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21821] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21821] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21821] exit_group(0)               = ?
[pid 21821] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21821, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21822
./strace-static-x86_64: Process 21822 attached
[pid 21822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21822] setpgid(0, 0)               = 0
[pid 21822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21822] write(3, "1000", 4)         = 4
[pid 21822] close(3)                    = 0
[pid 21822] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21822] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21822] write(4, "78", 2)           = 2
[pid 21822] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21822] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21822] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21822] exit_group(0)               = ?
[pid 21822] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21822, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21823 attached
, child_tidptr=0x555555af35d0) = 21823
[pid 21823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21823] setpgid(0, 0)               = 0
[pid 21823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21823] write(3, "1000", 4)         = 4
[pid 21823] close(3)                    = 0
[pid 21823] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21823] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21823] write(4, "78", 2)           = 2
[pid 21823] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21823] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21823] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21823] exit_group(0)               = ?
[pid 21823] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21823, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21824 attached
, child_tidptr=0x555555af35d0) = 21824
[pid 21824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21824] setpgid(0, 0)               = 0
[pid 21824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21824] write(3, "1000", 4)         = 4
[pid 21824] close(3)                    = 0
[pid 21824] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21824] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21824] write(4, "78", 2)           = 2
[pid 21824] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21824] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21824] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21824] exit_group(0)               = ?
[pid 21824] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21824, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21825 attached
, child_tidptr=0x555555af35d0) = 21825
[pid 21825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21825] setpgid(0, 0)               = 0
[pid 21825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21825] write(3, "1000", 4)         = 4
[pid 21825] close(3)                    = 0
[pid 21825] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21825] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21825] write(4, "78", 2)           = 2
[pid 21825] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21825] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21825] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21825] exit_group(0)               = ?
[pid 21825] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21825, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21826 attached
, child_tidptr=0x555555af35d0) = 21826
[pid 21826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21826] setpgid(0, 0)               = 0
[pid 21826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21826] write(3, "1000", 4)         = 4
[pid 21826] close(3)                    = 0
[pid 21826] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21826] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21826] write(4, "78", 2)           = 2
[pid 21826] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21826] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21826] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21826] exit_group(0)               = ?
[pid 21826] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21826, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21827 attached
, child_tidptr=0x555555af35d0) = 21827
[pid 21827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21827] setpgid(0, 0)               = 0
[pid 21827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21827] write(3, "1000", 4)         = 4
[pid 21827] close(3)                    = 0
[pid 21827] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21827] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21827] write(4, "78", 2)           = 2
[pid 21827] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21827] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21827] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21827] exit_group(0)               = ?
[pid 21827] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21827, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21828 attached
, child_tidptr=0x555555af35d0) = 21828
[pid 21828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21828] setpgid(0, 0)               = 0
[pid 21828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21828] write(3, "1000", 4)         = 4
[pid 21828] close(3)                    = 0
[pid 21828] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21828] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21828] write(4, "78", 2)           = 2
[pid 21828] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21828] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21828] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21828] exit_group(0)               = ?
[pid 21828] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21828, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21829
./strace-static-x86_64: Process 21829 attached
[pid 21829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21829] setpgid(0, 0)               = 0
[pid 21829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21829] write(3, "1000", 4)         = 4
[pid 21829] close(3)                    = 0
[pid 21829] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21829] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21829] write(4, "78", 2)           = 2
[pid 21829] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21829] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21829] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21829] exit_group(0)               = ?
[pid 21829] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21829, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21830 attached
, child_tidptr=0x555555af35d0) = 21830
[pid 21830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21830] setpgid(0, 0)               = 0
[pid 21830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21830] write(3, "1000", 4)         = 4
[pid 21830] close(3)                    = 0
[pid 21830] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21830] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21830] write(4, "78", 2)           = 2
[pid 21830] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21830] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21830] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21830] exit_group(0)               = ?
[pid 21830] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21830, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21831 attached
, child_tidptr=0x555555af35d0) = 21831
[pid 21831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21831] setpgid(0, 0)               = 0
[pid 21831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21831] write(3, "1000", 4)         = 4
[pid 21831] close(3)                    = 0
[pid 21831] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21831] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21831] write(4, "78", 2)           = 2
[pid 21831] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21831] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21831] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21831] exit_group(0)               = ?
[pid 21831] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21831, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21832 attached
, child_tidptr=0x555555af35d0) = 21832
[pid 21832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21832] setpgid(0, 0)               = 0
[pid 21832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21832] write(3, "1000", 4)         = 4
[pid 21832] close(3)                    = 0
[pid 21832] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21832] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21832] write(4, "78", 2)           = 2
[pid 21832] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21832] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21832] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21832] exit_group(0)               = ?
[pid 21832] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21832, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21833 attached
, child_tidptr=0x555555af35d0) = 21833
[pid 21833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21833] setpgid(0, 0)               = 0
[pid 21833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21833] write(3, "1000", 4)         = 4
[pid 21833] close(3)                    = 0
[pid 21833] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21833] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21833] write(4, "78", 2)           = 2
[pid 21833] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21833] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21833] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21833] exit_group(0)               = ?
[pid 21833] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21833, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21834 attached
, child_tidptr=0x555555af35d0) = 21834
[pid 21834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21834] setpgid(0, 0)               = 0
[pid 21834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21834] write(3, "1000", 4)         = 4
[pid 21834] close(3)                    = 0
[pid 21834] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21834] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21834] write(4, "78", 2)           = 2
[pid 21834] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21834] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21834] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21834] exit_group(0)               = ?
[pid 21834] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21834, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21835 attached
, child_tidptr=0x555555af35d0) = 21835
[pid 21835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21835] setpgid(0, 0)               = 0
[pid 21835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21835] write(3, "1000", 4)         = 4
[pid 21835] close(3)                    = 0
[pid 21835] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21835] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21835] write(4, "78", 2)           = 2
[pid 21835] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21835] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21835] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21835] exit_group(0)               = ?
[pid 21835] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21835, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21836 attached
, child_tidptr=0x555555af35d0) = 21836
[pid 21836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21836] setpgid(0, 0)               = 0
[pid 21836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21836] write(3, "1000", 4)         = 4
[pid 21836] close(3)                    = 0
[pid 21836] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21836] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21836] write(4, "78", 2)           = 2
[pid 21836] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21836] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21836] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21836] exit_group(0)               = ?
[pid 21836] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21836, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21837
./strace-static-x86_64: Process 21837 attached
[pid 21837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21837] setpgid(0, 0)               = 0
[pid 21837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21837] write(3, "1000", 4)         = 4
[pid 21837] close(3)                    = 0
[pid 21837] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21837] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21837] write(4, "78", 2)           = 2
[pid 21837] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21837] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21837] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21837] exit_group(0)               = ?
[pid 21837] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21837, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21838 attached
, child_tidptr=0x555555af35d0) = 21838
[pid 21838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21838] setpgid(0, 0)               = 0
[pid 21838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21838] write(3, "1000", 4)         = 4
[pid 21838] close(3)                    = 0
[pid 21838] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21838] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21838] write(4, "78", 2)           = 2
[pid 21838] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21838] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21838] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21838] exit_group(0)               = ?
[pid 21838] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21838, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21839 attached
, child_tidptr=0x555555af35d0) = 21839
[pid 21839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21839] setpgid(0, 0)               = 0
[pid 21839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21839] write(3, "1000", 4)         = 4
[pid 21839] close(3)                    = 0
[pid 21839] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21839] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21839] write(4, "78", 2)           = 2
[pid 21839] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21839] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21839] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21839] exit_group(0)               = ?
[pid 21839] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21839, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21840
./strace-static-x86_64: Process 21840 attached
[pid 21840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21840] setpgid(0, 0)               = 0
[pid 21840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21840] write(3, "1000", 4)         = 4
[pid 21840] close(3)                    = 0
[pid 21840] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21840] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21840] write(4, "78", 2)           = 2
[pid 21840] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21840] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21840] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21840] exit_group(0)               = ?
[pid 21840] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21840, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21841 attached
, child_tidptr=0x555555af35d0) = 21841
[pid 21841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21841] setpgid(0, 0)               = 0
[pid 21841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21841] write(3, "1000", 4)         = 4
[pid 21841] close(3)                    = 0
[pid 21841] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21841] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21841] write(4, "78", 2)           = 2
[pid 21841] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21841] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21841] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21841] exit_group(0)               = ?
[pid 21841] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21841, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21842 attached
, child_tidptr=0x555555af35d0) = 21842
[pid 21842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21842] setpgid(0, 0)               = 0
[pid 21842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21842] write(3, "1000", 4)         = 4
[pid 21842] close(3)                    = 0
[pid 21842] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21842] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21842] write(4, "78", 2)           = 2
[pid 21842] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21842] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21842] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21842] exit_group(0)               = ?
[pid 21842] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21842, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21843 attached
, child_tidptr=0x555555af35d0) = 21843
[pid 21843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21843] setpgid(0, 0)               = 0
[pid 21843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21843] write(3, "1000", 4)         = 4
[pid 21843] close(3)                    = 0
[pid 21843] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21843] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21843] write(4, "78", 2)           = 2
[pid 21843] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21843] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21843] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21843] exit_group(0)               = ?
[pid 21843] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21843, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21844 attached
, child_tidptr=0x555555af35d0) = 21844
[pid 21844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21844] setpgid(0, 0)               = 0
[pid 21844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21844] write(3, "1000", 4)         = 4
[pid 21844] close(3)                    = 0
[pid 21844] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21844] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21844] write(4, "78", 2)           = 2
[pid 21844] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21844] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21844] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21844] exit_group(0)               = ?
[pid 21844] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21844, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21845 attached
, child_tidptr=0x555555af35d0) = 21845
[pid 21845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21845] setpgid(0, 0)               = 0
[pid 21845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21845] write(3, "1000", 4)         = 4
[pid 21845] close(3)                    = 0
[pid 21845] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21845] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21845] write(4, "78", 2)           = 2
[pid 21845] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21845] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21845] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21845] exit_group(0)               = ?
[pid 21845] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21845, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21846 attached
, child_tidptr=0x555555af35d0) = 21846
[pid 21846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21846] setpgid(0, 0)               = 0
[pid 21846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21846] write(3, "1000", 4)         = 4
[pid 21846] close(3)                    = 0
[pid 21846] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21846] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21846] write(4, "78", 2)           = 2
[pid 21846] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21846] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21846] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21846] exit_group(0)               = ?
[pid 21846] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21846, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21847 attached
, child_tidptr=0x555555af35d0) = 21847
[pid 21847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21847] setpgid(0, 0)               = 0
[pid 21847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21847] write(3, "1000", 4)         = 4
[pid 21847] close(3)                    = 0
[pid 21847] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21847] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21847] write(4, "78", 2)           = 2
[pid 21847] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21847] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21847] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21847] exit_group(0)               = ?
[pid 21847] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21847, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21848 attached
, child_tidptr=0x555555af35d0) = 21848
[pid 21848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21848] setpgid(0, 0)               = 0
[pid 21848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21848] write(3, "1000", 4)         = 4
[pid 21848] close(3)                    = 0
[pid 21848] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21848] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21848] write(4, "78", 2)           = 2
[pid 21848] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21848] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21848] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21848] exit_group(0)               = ?
[pid 21848] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21848, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21849 attached
, child_tidptr=0x555555af35d0) = 21849
[pid 21849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21849] setpgid(0, 0)               = 0
[pid 21849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21849] write(3, "1000", 4)         = 4
[pid 21849] close(3)                    = 0
[pid 21849] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21849] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21849] write(4, "78", 2)           = 2
[pid 21849] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21849] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21849] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21849] exit_group(0)               = ?
[pid 21849] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21849, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21850 attached
, child_tidptr=0x555555af35d0) = 21850
[pid 21850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21850] setpgid(0, 0)               = 0
[pid 21850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21850] write(3, "1000", 4)         = 4
[pid 21850] close(3)                    = 0
[pid 21850] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21850] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21850] write(4, "78", 2)           = 2
[pid 21850] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21850] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21850] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21850] exit_group(0)               = ?
[pid 21850] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21850, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21851 attached
, child_tidptr=0x555555af35d0) = 21851
[pid 21851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21851] setpgid(0, 0)               = 0
[pid 21851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21851] write(3, "1000", 4)         = 4
[pid 21851] close(3)                    = 0
[pid 21851] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21851] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21851] write(4, "78", 2)           = 2
[pid 21851] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21851] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21851] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21851] exit_group(0)               = ?
[pid 21851] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21851, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21852 attached
, child_tidptr=0x555555af35d0) = 21852
[pid 21852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21852] setpgid(0, 0)               = 0
[pid 21852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21852] write(3, "1000", 4)         = 4
[pid 21852] close(3)                    = 0
[pid 21852] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21852] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21852] write(4, "78", 2)           = 2
[pid 21852] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21852] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21852] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21852] exit_group(0)               = ?
[pid 21852] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21852, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21853 attached
, child_tidptr=0x555555af35d0) = 21853
[pid 21853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21853] setpgid(0, 0)               = 0
[pid 21853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21853] write(3, "1000", 4)         = 4
[pid 21853] close(3)                    = 0
[pid 21853] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21853] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21853] write(4, "78", 2)           = 2
[pid 21853] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21853] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21853] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21853] exit_group(0)               = ?
[pid 21853] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21853, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21854
./strace-static-x86_64: Process 21854 attached
[pid 21854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21854] setpgid(0, 0)               = 0
[pid 21854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21854] write(3, "1000", 4)         = 4
[pid 21854] close(3)                    = 0
[pid 21854] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21854] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21854] write(4, "78", 2)           = 2
[pid 21854] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21854] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21854] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21854] exit_group(0)               = ?
[pid 21854] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21854, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21855 attached
, child_tidptr=0x555555af35d0) = 21855
[pid 21855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21855] setpgid(0, 0)               = 0
[pid 21855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21855] write(3, "1000", 4)         = 4
[pid 21855] close(3)                    = 0
[pid 21855] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21855] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21855] write(4, "78", 2)           = 2
[pid 21855] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21855] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21855] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21855] exit_group(0)               = ?
[pid 21855] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21855, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21856 attached
, child_tidptr=0x555555af35d0) = 21856
[pid 21856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21856] setpgid(0, 0)               = 0
[pid 21856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21856] write(3, "1000", 4)         = 4
[pid 21856] close(3)                    = 0
[pid 21856] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21856] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21856] write(4, "78", 2)           = 2
[pid 21856] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21856] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21856] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21856] exit_group(0)               = ?
[pid 21856] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21856, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21857 attached
, child_tidptr=0x555555af35d0) = 21857
[pid 21857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21857] setpgid(0, 0)               = 0
[pid 21857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21857] write(3, "1000", 4)         = 4
[pid 21857] close(3)                    = 0
[pid 21857] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21857] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21857] write(4, "78", 2)           = 2
[pid 21857] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21857] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21857] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21857] exit_group(0)               = ?
[pid 21857] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21857, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21858
./strace-static-x86_64: Process 21858 attached
[pid 21858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21858] setpgid(0, 0)               = 0
[pid 21858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21858] write(3, "1000", 4)         = 4
[pid 21858] close(3)                    = 0
[pid 21858] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21858] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21858] write(4, "78", 2)           = 2
[pid 21858] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21858] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21858] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21858] exit_group(0)               = ?
[pid 21858] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21858, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21859 attached
, child_tidptr=0x555555af35d0) = 21859
[pid 21859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21859] setpgid(0, 0)               = 0
[pid 21859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21859] write(3, "1000", 4)         = 4
[pid 21859] close(3)                    = 0
[pid 21859] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21859] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21859] write(4, "78", 2)           = 2
[pid 21859] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21859] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21859] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21859] exit_group(0)               = ?
[pid 21859] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21859, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21860
./strace-static-x86_64: Process 21860 attached
[pid 21860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21860] setpgid(0, 0)               = 0
[pid 21860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21860] write(3, "1000", 4)         = 4
[pid 21860] close(3)                    = 0
[pid 21860] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21860] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21860] write(4, "78", 2)           = 2
[pid 21860] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21860] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21860] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21860] exit_group(0)               = ?
[pid 21860] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21860, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21861 attached
, child_tidptr=0x555555af35d0) = 21861
[pid 21861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21861] setpgid(0, 0)               = 0
[pid 21861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21861] write(3, "1000", 4)         = 4
[pid 21861] close(3)                    = 0
[pid 21861] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21861] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21861] write(4, "78", 2)           = 2
[pid 21861] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21861] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21861] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21861] exit_group(0)               = ?
[pid 21861] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21861, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21862 attached
, child_tidptr=0x555555af35d0) = 21862
[pid 21862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21862] setpgid(0, 0)               = 0
[pid 21862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21862] write(3, "1000", 4)         = 4
[pid 21862] close(3)                    = 0
[pid 21862] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21862] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21862] write(4, "78", 2)           = 2
[pid 21862] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21862] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21862] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21862] exit_group(0)               = ?
[pid 21862] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21862, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21863
./strace-static-x86_64: Process 21863 attached
[pid 21863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21863] setpgid(0, 0)               = 0
[pid 21863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21863] write(3, "1000", 4)         = 4
[pid 21863] close(3)                    = 0
[pid 21863] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21863] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21863] write(4, "78", 2)           = 2
[pid 21863] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21863] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21863] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 21863] exit_group(0)               = ?
[pid 21863] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21863, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21864 attached
, child_tidptr=0x555555af35d0) = 21864
[pid 21864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21864] setpgid(0, 0)               = 0
[pid 21864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21864] write(3, "1000", 4)         = 4
[pid 21864] close(3)                    = 0
[pid 21864] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21864] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21864] write(4, "78", 2)           = 2
[pid 21864] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 21864] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21864] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21864] exit_group(0)               = ?
[pid 21864] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21864, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21865 attached
, child_tidptr=0x555555af35d0) = 21865
[pid 21865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21865] setpgid(0, 0)               = 0
[pid 21865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21865] write(3, "1000", 4)         = 4
[pid 21865] close(3)                    = 0
[pid 21865] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21865] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21865] write(4, "78", 2)           = 2
[pid 21865] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21865] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21865] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21865] exit_group(0)               = ?
[pid 21865] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21865, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21866 attached
, child_tidptr=0x555555af35d0) = 21866
[pid 21866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21866] setpgid(0, 0)               = 0
[pid 21866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21866] write(3, "1000", 4)         = 4
[pid 21866] close(3)                    = 0
[pid 21866] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21866] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21866] write(4, "78", 2)           = 2
[pid 21866] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21866] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21866] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21866] exit_group(0)               = ?
[pid 21866] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21866, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21867 attached
, child_tidptr=0x555555af35d0) = 21867
[pid 21867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21867] setpgid(0, 0)               = 0
[pid 21867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21867] write(3, "1000", 4)         = 4
[pid 21867] close(3)                    = 0
[pid 21867] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21867] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21867] write(4, "78", 2)           = 2
[pid 21867] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21867] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21867] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21867] exit_group(0)               = ?
[pid 21867] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21867, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21868 attached
, child_tidptr=0x555555af35d0) = 21868
[pid 21868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21868] setpgid(0, 0)               = 0
[pid 21868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21868] write(3, "1000", 4)         = 4
[pid 21868] close(3)                    = 0
[pid 21868] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21868] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21868] write(4, "78", 2)           = 2
[pid 21868] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21868] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21868] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21868] exit_group(0)               = ?
[pid 21868] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21868, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21869 attached
, child_tidptr=0x555555af35d0) = 21869
[pid 21869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21869] setpgid(0, 0)               = 0
[pid 21869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21869] write(3, "1000", 4)         = 4
[pid 21869] close(3)                    = 0
[pid 21869] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21869] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21869] write(4, "78", 2)           = 2
[pid 21869] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21869] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21869] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21869] exit_group(0)               = ?
[pid 21869] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21869, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21870 attached
, child_tidptr=0x555555af35d0) = 21870
[pid 21870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21870] setpgid(0, 0)               = 0
[pid 21870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21870] write(3, "1000", 4)         = 4
[pid 21870] close(3)                    = 0
[pid 21870] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21870] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21870] write(4, "78", 2)           = 2
[pid 21870] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21870] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21870] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21870] exit_group(0)               = ?
[pid 21870] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21870, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21871
./strace-static-x86_64: Process 21871 attached
[pid 21871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21871] setpgid(0, 0)               = 0
[pid 21871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21871] write(3, "1000", 4)         = 4
[pid 21871] close(3)                    = 0
[pid 21871] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21871] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21871] write(4, "78", 2)           = 2
[pid 21871] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21871] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21871] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21871] exit_group(0)               = ?
[pid 21871] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21871, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21872
./strace-static-x86_64: Process 21872 attached
[pid 21872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21872] setpgid(0, 0)               = 0
[pid 21872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21872] write(3, "1000", 4)         = 4
[pid 21872] close(3)                    = 0
[pid 21872] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21872] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21872] write(4, "78", 2)           = 2
[pid 21872] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21872] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21872] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21872] exit_group(0)               = ?
[pid 21872] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21872, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21873 attached
, child_tidptr=0x555555af35d0) = 21873
[pid 21873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21873] setpgid(0, 0)               = 0
[pid 21873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21873] write(3, "1000", 4)         = 4
[pid 21873] close(3)                    = 0
[pid 21873] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21873] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21873] write(4, "78", 2)           = 2
[pid 21873] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21873] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21873] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21873] exit_group(0)               = ?
[pid 21873] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21873, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21874 attached
, child_tidptr=0x555555af35d0) = 21874
[pid 21874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21874] setpgid(0, 0)               = 0
[pid 21874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21874] write(3, "1000", 4)         = 4
[pid 21874] close(3)                    = 0
[pid 21874] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21874] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21874] write(4, "78", 2)           = 2
[pid 21874] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21874] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21874] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21874] exit_group(0)               = ?
[pid 21874] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21874, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21875 attached
, child_tidptr=0x555555af35d0) = 21875
[pid 21875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21875] setpgid(0, 0)               = 0
[pid 21875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21875] write(3, "1000", 4)         = 4
[pid 21875] close(3)                    = 0
[pid 21875] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21875] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21875] write(4, "78", 2)           = 2
[pid 21875] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21875] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21875] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21875] exit_group(0)               = ?
[pid 21875] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21875, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21876 attached
, child_tidptr=0x555555af35d0) = 21876
[pid 21876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21876] setpgid(0, 0)               = 0
[pid 21876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21876] write(3, "1000", 4)         = 4
[pid 21876] close(3)                    = 0
[pid 21876] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21876] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21876] write(4, "78", 2)           = 2
[pid 21876] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21876] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21876] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21876] exit_group(0)               = ?
[pid 21876] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21876, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21877 attached
, child_tidptr=0x555555af35d0) = 21877
[pid 21877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21877] setpgid(0, 0)               = 0
[pid 21877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21877] write(3, "1000", 4)         = 4
[pid 21877] close(3)                    = 0
[pid 21877] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21877] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21877] write(4, "78", 2)           = 2
[pid 21877] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21877] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21877] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21877] exit_group(0)               = ?
[pid 21877] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21877, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21878 attached
, child_tidptr=0x555555af35d0) = 21878
[pid 21878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21878] setpgid(0, 0)               = 0
[pid 21878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21878] write(3, "1000", 4)         = 4
[pid 21878] close(3)                    = 0
[pid 21878] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21878] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21878] write(4, "78", 2)           = 2
[pid 21878] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21878] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21878] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21878] exit_group(0)               = ?
[pid 21878] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21878, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21879 attached
, child_tidptr=0x555555af35d0) = 21879
[pid 21879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21879] setpgid(0, 0)               = 0
[pid 21879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21879] write(3, "1000", 4)         = 4
[pid 21879] close(3)                    = 0
[pid 21879] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21879] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21879] write(4, "78", 2)           = 2
[pid 21879] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21879] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21879] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21879] exit_group(0)               = ?
[pid 21879] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21879, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21880 attached
, child_tidptr=0x555555af35d0) = 21880
[pid 21880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21880] setpgid(0, 0)               = 0
[pid 21880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21880] write(3, "1000", 4)         = 4
[pid 21880] close(3)                    = 0
[pid 21880] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21880] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21880] write(4, "78", 2)           = 2
[pid 21880] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21880] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21880] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21880] exit_group(0)               = ?
[pid 21880] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21880, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21881 attached
, child_tidptr=0x555555af35d0) = 21881
[pid 21881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21881] setpgid(0, 0)               = 0
[pid 21881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21881] write(3, "1000", 4)         = 4
[pid 21881] close(3)                    = 0
[pid 21881] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21881] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21881] write(4, "78", 2)           = 2
[pid 21881] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21881] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21881] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21881] exit_group(0)               = ?
[pid 21881] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21881, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21882
./strace-static-x86_64: Process 21882 attached
[pid 21882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21882] setpgid(0, 0)               = 0
[pid 21882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21882] write(3, "1000", 4)         = 4
[pid 21882] close(3)                    = 0
[pid 21882] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21882] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21882] write(4, "78", 2)           = 2
[pid 21882] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21882] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21882] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21882] exit_group(0)               = ?
[pid 21882] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21882, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21883
./strace-static-x86_64: Process 21883 attached
[pid 21883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21883] setpgid(0, 0)               = 0
[pid 21883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21883] write(3, "1000", 4)         = 4
[pid 21883] close(3)                    = 0
[pid 21883] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21883] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21883] write(4, "78", 2)           = 2
[pid 21883] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21883] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21883] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21883] exit_group(0)               = ?
[pid 21883] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21883, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21884
./strace-static-x86_64: Process 21884 attached
[pid 21884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21884] setpgid(0, 0)               = 0
[pid 21884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21884] write(3, "1000", 4)         = 4
[pid 21884] close(3)                    = 0
[pid 21884] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21884] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21884] write(4, "78", 2)           = 2
[pid 21884] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21884] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21884] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21884] exit_group(0)               = ?
[pid 21884] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21884, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21885 attached
, child_tidptr=0x555555af35d0) = 21885
[pid 21885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21885] setpgid(0, 0)               = 0
[pid 21885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21885] write(3, "1000", 4)         = 4
[pid 21885] close(3)                    = 0
[pid 21885] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21885] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21885] write(4, "78", 2)           = 2
[pid 21885] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21885] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21885] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21885] exit_group(0)               = ?
[pid 21885] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21885, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21886 attached
, child_tidptr=0x555555af35d0) = 21886
[pid 21886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21886] setpgid(0, 0)               = 0
[pid 21886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21886] write(3, "1000", 4)         = 4
[pid 21886] close(3)                    = 0
[pid 21886] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21886] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21886] write(4, "78", 2)           = 2
[pid 21886] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21886] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21886] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21886] exit_group(0)               = ?
[pid 21886] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21886, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21887
./strace-static-x86_64: Process 21887 attached
[pid 21887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21887] setpgid(0, 0)               = 0
[pid 21887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21887] write(3, "1000", 4)         = 4
[pid 21887] close(3)                    = 0
[pid 21887] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21887] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21887] write(4, "78", 2)           = 2
[pid 21887] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21887] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21887] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21887] exit_group(0)               = ?
[pid 21887] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21887, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21888 attached
, child_tidptr=0x555555af35d0) = 21888
[pid 21888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21888] setpgid(0, 0)               = 0
[pid 21888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21888] write(3, "1000", 4)         = 4
[pid 21888] close(3)                    = 0
[pid 21888] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21888] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21888] write(4, "78", 2)           = 2
[pid 21888] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21888] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21888] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21888] exit_group(0)               = ?
[pid 21888] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21888, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21889
./strace-static-x86_64: Process 21889 attached
[pid 21889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21889] setpgid(0, 0)               = 0
[pid 21889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21889] write(3, "1000", 4)         = 4
[pid 21889] close(3)                    = 0
[pid 21889] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21889] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21889] write(4, "78", 2)           = 2
[pid 21889] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21889] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21889] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21889] exit_group(0)               = ?
[pid 21889] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21889, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21890
./strace-static-x86_64: Process 21890 attached
[pid 21890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21890] setpgid(0, 0)               = 0
[pid 21890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21890] write(3, "1000", 4)         = 4
[pid 21890] close(3)                    = 0
[pid 21890] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21890] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21890] write(4, "78", 2)           = 2
[pid 21890] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21890] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21890] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21890] exit_group(0)               = ?
[pid 21890] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21890, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21891 attached
, child_tidptr=0x555555af35d0) = 21891
[pid 21891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21891] setpgid(0, 0)               = 0
[pid 21891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21891] write(3, "1000", 4)         = 4
[pid 21891] close(3)                    = 0
[pid 21891] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21891] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21891] write(4, "78", 2)           = 2
[pid 21891] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21891] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21891] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21891] exit_group(0)               = ?
[pid 21891] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21891, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21892
./strace-static-x86_64: Process 21892 attached
[pid 21892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21892] setpgid(0, 0)               = 0
[pid 21892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21892] write(3, "1000", 4)         = 4
[pid 21892] close(3)                    = 0
[pid 21892] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21892] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21892] write(4, "78", 2)           = 2
[pid 21892] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21892] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21892] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21892] exit_group(0)               = ?
[pid 21892] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21892, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21893 attached
, child_tidptr=0x555555af35d0) = 21893
[pid 21893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21893] setpgid(0, 0)               = 0
[pid 21893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21893] write(3, "1000", 4)         = 4
[pid 21893] close(3)                    = 0
[pid 21893] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21893] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21893] write(4, "78", 2)           = 2
[pid 21893] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21893] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21893] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21893] exit_group(0)               = ?
[pid 21893] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21893, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21894
./strace-static-x86_64: Process 21894 attached
[pid 21894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21894] setpgid(0, 0)               = 0
[pid 21894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21894] write(3, "1000", 4)         = 4
[pid 21894] close(3)                    = 0
[pid 21894] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21894] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21894] write(4, "78", 2)           = 2
[pid 21894] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21894] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21894] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21894] exit_group(0)               = ?
[pid 21894] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21894, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21895 attached
, child_tidptr=0x555555af35d0) = 21895
[pid 21895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21895] setpgid(0, 0)               = 0
[pid 21895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21895] write(3, "1000", 4)         = 4
[pid 21895] close(3)                    = 0
[pid 21895] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21895] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21895] write(4, "78", 2)           = 2
[pid 21895] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21895] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21895] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21895] exit_group(0)               = ?
[pid 21895] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21895, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21896 attached
, child_tidptr=0x555555af35d0) = 21896
[pid 21896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21896] setpgid(0, 0)               = 0
[pid 21896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21896] write(3, "1000", 4)         = 4
[pid 21896] close(3)                    = 0
[pid 21896] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21896] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21896] write(4, "78", 2)           = 2
[pid 21896] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21896] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21896] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21896] exit_group(0)               = ?
[pid 21896] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21896, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21897 attached
, child_tidptr=0x555555af35d0) = 21897
[pid 21897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21897] setpgid(0, 0)               = 0
[pid 21897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21897] write(3, "1000", 4)         = 4
[pid 21897] close(3)                    = 0
[pid 21897] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21897] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21897] write(4, "78", 2)           = 2
[pid 21897] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21897] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21897] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21897] exit_group(0)               = ?
[pid 21897] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21897, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21898 attached
, child_tidptr=0x555555af35d0) = 21898
[pid 21898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21898] setpgid(0, 0)               = 0
[pid 21898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21898] write(3, "1000", 4)         = 4
[pid 21898] close(3)                    = 0
[pid 21898] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21898] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21898] write(4, "78", 2)           = 2
[pid 21898] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21898] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21898] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21898] exit_group(0)               = ?
[pid 21898] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21898, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21899 attached
, child_tidptr=0x555555af35d0) = 21899
[pid 21899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21899] setpgid(0, 0)               = 0
[pid 21899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21899] write(3, "1000", 4)         = 4
[pid 21899] close(3)                    = 0
[pid 21899] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21899] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21899] write(4, "78", 2)           = 2
[pid 21899] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21899] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21899] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21899] exit_group(0)               = ?
[pid 21899] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21899, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21900 attached
, child_tidptr=0x555555af35d0) = 21900
[pid 21900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21900] setpgid(0, 0)               = 0
[pid 21900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21900] write(3, "1000", 4)         = 4
[pid 21900] close(3)                    = 0
[pid 21900] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21900] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21900] write(4, "78", 2)           = 2
[pid 21900] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21900] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21900] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21900] exit_group(0)               = ?
[pid 21900] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21900, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21901 attached
, child_tidptr=0x555555af35d0) = 21901
[pid 21901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21901] setpgid(0, 0)               = 0
[pid 21901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21901] write(3, "1000", 4)         = 4
[pid 21901] close(3)                    = 0
[pid 21901] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21901] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21901] write(4, "78", 2)           = 2
[pid 21901] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21901] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21901] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21901] exit_group(0)               = ?
[pid 21901] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21901, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21902 attached
, child_tidptr=0x555555af35d0) = 21902
[pid 21902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21902] setpgid(0, 0)               = 0
[pid 21902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21902] write(3, "1000", 4)         = 4
[pid 21902] close(3)                    = 0
[pid 21902] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21902] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21902] write(4, "78", 2)           = 2
[pid 21902] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21902] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21902] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21902] exit_group(0)               = ?
[pid 21902] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21902, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21903 attached
, child_tidptr=0x555555af35d0) = 21903
[pid 21903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21903] setpgid(0, 0)               = 0
[pid 21903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21903] write(3, "1000", 4)         = 4
[pid 21903] close(3)                    = 0
[pid 21903] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21903] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21903] write(4, "78", 2)           = 2
[pid 21903] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21903] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21903] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21903] exit_group(0)               = ?
[pid 21903] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21903, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21904 attached
, child_tidptr=0x555555af35d0) = 21904
[pid 21904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21904] setpgid(0, 0)               = 0
[pid 21904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21904] write(3, "1000", 4)         = 4
[pid 21904] close(3)                    = 0
[pid 21904] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21904] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21904] write(4, "78", 2)           = 2
[pid 21904] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21904] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21904] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21904] exit_group(0)               = ?
[pid 21904] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21904, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21905
./strace-static-x86_64: Process 21905 attached
[pid 21905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21905] setpgid(0, 0)               = 0
[pid 21905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21905] write(3, "1000", 4)         = 4
[pid 21905] close(3)                    = 0
[pid 21905] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21905] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21905] write(4, "78", 2)           = 2
[pid 21905] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21905] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21905] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21905] exit_group(0)               = ?
[pid 21905] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21905, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21906
./strace-static-x86_64: Process 21906 attached
[pid 21906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21906] setpgid(0, 0)               = 0
[pid 21906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21906] write(3, "1000", 4)         = 4
[pid 21906] close(3)                    = 0
[pid 21906] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21906] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21906] write(4, "78", 2)           = 2
[pid 21906] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21906] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21906] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21906] exit_group(0)               = ?
[pid 21906] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21906, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21907 attached
, child_tidptr=0x555555af35d0) = 21907
[pid 21907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21907] setpgid(0, 0)               = 0
[pid 21907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21907] write(3, "1000", 4)         = 4
[pid 21907] close(3)                    = 0
[pid 21907] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21907] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21907] write(4, "78", 2)           = 2
[pid 21907] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21907] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21907] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21907] exit_group(0)               = ?
[pid 21907] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21907, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21908 attached
, child_tidptr=0x555555af35d0) = 21908
[pid 21908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21908] setpgid(0, 0)               = 0
[pid 21908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21908] write(3, "1000", 4)         = 4
[pid 21908] close(3)                    = 0
[pid 21908] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21908] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21908] write(4, "78", 2)           = 2
[pid 21908] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21908] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21908] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21908] exit_group(0)               = ?
[pid 21908] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21908, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21909 attached
, child_tidptr=0x555555af35d0) = 21909
[pid 21909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21909] setpgid(0, 0)               = 0
[pid 21909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21909] write(3, "1000", 4)         = 4
[pid 21909] close(3)                    = 0
[pid 21909] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21909] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21909] write(4, "78", 2)           = 2
[pid 21909] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21909] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21909] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21909] exit_group(0)               = ?
[pid 21909] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21909, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21910 attached
, child_tidptr=0x555555af35d0) = 21910
[pid 21910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21910] setpgid(0, 0)               = 0
[pid 21910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21910] write(3, "1000", 4)         = 4
[pid 21910] close(3)                    = 0
[pid 21910] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21910] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21910] write(4, "78", 2)           = 2
[pid 21910] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21910] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21910] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21910] exit_group(0)               = ?
[pid 21910] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21910, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21911 attached
, child_tidptr=0x555555af35d0) = 21911
[pid 21911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21911] setpgid(0, 0)               = 0
[pid 21911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21911] write(3, "1000", 4)         = 4
[pid 21911] close(3)                    = 0
[pid 21911] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21911] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21911] write(4, "78", 2)           = 2
[pid 21911] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21911] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21911] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21911] exit_group(0)               = ?
[pid 21911] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21911, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21912 attached
, child_tidptr=0x555555af35d0) = 21912
[pid 21912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21912] setpgid(0, 0)               = 0
[pid 21912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21912] write(3, "1000", 4)         = 4
[pid 21912] close(3)                    = 0
[pid 21912] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21912] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21912] write(4, "78", 2)           = 2
[pid 21912] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21912] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21912] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21912] exit_group(0)               = ?
[pid 21912] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21912, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21913 attached
, child_tidptr=0x555555af35d0) = 21913
[pid 21913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21913] setpgid(0, 0)               = 0
[pid 21913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21913] write(3, "1000", 4)         = 4
[pid 21913] close(3)                    = 0
[pid 21913] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21913] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21913] write(4, "78", 2)           = 2
[pid 21913] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21913] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21913] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21913] exit_group(0)               = ?
[pid 21913] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21913, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21914 attached
, child_tidptr=0x555555af35d0) = 21914
[pid 21914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21914] setpgid(0, 0)               = 0
[pid 21914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21914] write(3, "1000", 4)         = 4
[pid 21914] close(3)                    = 0
[pid 21914] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21914] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21914] write(4, "78", 2)           = 2
[pid 21914] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21914] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21914] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21914] exit_group(0)               = ?
[pid 21914] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21914, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21915
./strace-static-x86_64: Process 21915 attached
[pid 21915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21915] setpgid(0, 0)               = 0
[pid 21915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21915] write(3, "1000", 4)         = 4
[pid 21915] close(3)                    = 0
[pid 21915] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21915] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21915] write(4, "78", 2)           = 2
[pid 21915] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21915] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21915] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21915] exit_group(0)               = ?
[pid 21915] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21915, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21916 attached
, child_tidptr=0x555555af35d0) = 21916
[pid 21916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21916] setpgid(0, 0)               = 0
[pid 21916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21916] write(3, "1000", 4)         = 4
[pid 21916] close(3)                    = 0
[pid 21916] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21916] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21916] write(4, "78", 2)           = 2
[pid 21916] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21916] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21916] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21916] exit_group(0)               = ?
[pid 21916] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21916, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21917 attached
, child_tidptr=0x555555af35d0) = 21917
[pid 21917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21917] setpgid(0, 0)               = 0
[pid 21917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21917] write(3, "1000", 4)         = 4
[pid 21917] close(3)                    = 0
[pid 21917] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21917] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21917] write(4, "78", 2)           = 2
[pid 21917] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21917] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21917] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21917] exit_group(0)               = ?
[pid 21917] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21917, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21918 attached
, child_tidptr=0x555555af35d0) = 21918
[pid 21918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21918] setpgid(0, 0)               = 0
[pid 21918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21918] write(3, "1000", 4)         = 4
[pid 21918] close(3)                    = 0
[pid 21918] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21918] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21918] write(4, "78", 2)           = 2
[pid 21918] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21918] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21918] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21918] exit_group(0)               = ?
[pid 21918] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21918, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21919 attached
, child_tidptr=0x555555af35d0) = 21919
[pid 21919] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21919] setpgid(0, 0)               = 0
[pid 21919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21919] write(3, "1000", 4)         = 4
[pid 21919] close(3)                    = 0
[pid 21919] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21919] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21919] write(4, "78", 2)           = 2
[pid 21919] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21919] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21919] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21919] exit_group(0)               = ?
[pid 21919] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21919, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21920 attached
, child_tidptr=0x555555af35d0) = 21920
[pid 21920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21920] setpgid(0, 0)               = 0
[pid 21920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21920] write(3, "1000", 4)         = 4
[pid 21920] close(3)                    = 0
[pid 21920] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21920] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21920] write(4, "78", 2)           = 2
[pid 21920] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21920] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21920] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21920] exit_group(0)               = ?
[pid 21920] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21920, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21921 attached
, child_tidptr=0x555555af35d0) = 21921
[pid 21921] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21921] setpgid(0, 0)               = 0
[pid 21921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21921] write(3, "1000", 4)         = 4
[pid 21921] close(3)                    = 0
[pid 21921] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21921] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21921] write(4, "78", 2)           = 2
[pid 21921] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21921] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21921] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21921] exit_group(0)               = ?
[pid 21921] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21921, si_uid=0, si_status=0, si_utime=1, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21922
./strace-static-x86_64: Process 21922 attached
[pid 21922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21922] setpgid(0, 0)               = 0
[pid 21922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21922] write(3, "1000", 4)         = 4
[pid 21922] close(3)                    = 0
[pid 21922] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21922] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21922] write(4, "78", 2)           = 2
[pid 21922] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21922] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21922] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21922] exit_group(0)               = ?
[pid 21922] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21922, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21923 attached
, child_tidptr=0x555555af35d0) = 21923
[pid 21923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21923] setpgid(0, 0)               = 0
[pid 21923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21923] write(3, "1000", 4)         = 4
[pid 21923] close(3)                    = 0
[pid 21923] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21923] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21923] write(4, "78", 2)           = 2
[pid 21923] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21923] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21923] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21923] exit_group(0)               = ?
[pid 21923] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21923, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21924
./strace-static-x86_64: Process 21924 attached
[pid 21924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21924] setpgid(0, 0)               = 0
[pid 21924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21924] write(3, "1000", 4)         = 4
[pid 21924] close(3)                    = 0
[pid 21924] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21924] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21924] write(4, "78", 2)           = 2
[pid 21924] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21924] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21924] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21924] exit_group(0)               = ?
[pid 21924] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21924, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21925 attached
, child_tidptr=0x555555af35d0) = 21925
[pid 21925] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21925] setpgid(0, 0)               = 0
[pid 21925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21925] write(3, "1000", 4)         = 4
[pid 21925] close(3)                    = 0
[pid 21925] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21925] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21925] write(4, "78", 2)           = 2
[pid 21925] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21925] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21925] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21925] exit_group(0)               = ?
[pid 21925] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21925, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21926 attached
, child_tidptr=0x555555af35d0) = 21926
[pid 21926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21926] setpgid(0, 0)               = 0
[pid 21926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21926] write(3, "1000", 4)         = 4
[pid 21926] close(3)                    = 0
[pid 21926] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21926] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21926] write(4, "78", 2)           = 2
[pid 21926] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21926] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21926] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21926] exit_group(0)               = ?
[pid 21926] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21926, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21927 attached
, child_tidptr=0x555555af35d0) = 21927
[pid 21927] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21927] setpgid(0, 0)               = 0
[pid 21927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21927] write(3, "1000", 4)         = 4
[pid 21927] close(3)                    = 0
[pid 21927] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21927] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21927] write(4, "78", 2)           = 2
[pid 21927] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21927] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21927] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21927] exit_group(0)               = ?
[pid 21927] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21927, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21928 attached
, child_tidptr=0x555555af35d0) = 21928
[pid 21928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21928] setpgid(0, 0)               = 0
[pid 21928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21928] write(3, "1000", 4)         = 4
[pid 21928] close(3)                    = 0
[pid 21928] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21928] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21928] write(4, "78", 2)           = 2
[pid 21928] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21928] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21928] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21928] exit_group(0)               = ?
[pid 21928] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21928, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21929 attached
, child_tidptr=0x555555af35d0) = 21929
[pid 21929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21929] setpgid(0, 0)               = 0
[pid 21929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21929] write(3, "1000", 4)         = 4
[pid 21929] close(3)                    = 0
[pid 21929] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21929] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21929] write(4, "78", 2)           = 2
[pid 21929] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21929] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21929] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21929] exit_group(0)               = ?
[pid 21929] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21929, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21930 attached
, child_tidptr=0x555555af35d0) = 21930
[pid 21930] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21930] setpgid(0, 0)               = 0
[pid 21930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21930] write(3, "1000", 4)         = 4
[pid 21930] close(3)                    = 0
[pid 21930] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21930] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21930] write(4, "78", 2)           = 2
[pid 21930] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21930] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21930] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21930] exit_group(0)               = ?
[pid 21930] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21930, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21931 attached
, child_tidptr=0x555555af35d0) = 21931
[pid 21931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21931] setpgid(0, 0)               = 0
[pid 21931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21931] write(3, "1000", 4)         = 4
[pid 21931] close(3)                    = 0
[pid 21931] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21931] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21931] write(4, "78", 2)           = 2
[pid 21931] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21931] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21931] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21931] exit_group(0)               = ?
[pid 21931] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21931, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21932 attached
, child_tidptr=0x555555af35d0) = 21932
[pid 21932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21932] setpgid(0, 0)               = 0
[pid 21932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21932] write(3, "1000", 4)         = 4
[pid 21932] close(3)                    = 0
[pid 21932] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21932] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21932] write(4, "78", 2)           = 2
[pid 21932] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21932] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21932] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21932] exit_group(0)               = ?
[pid 21932] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21932, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21933 attached
, child_tidptr=0x555555af35d0) = 21933
[pid 21933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21933] setpgid(0, 0)               = 0
[pid 21933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21933] write(3, "1000", 4)         = 4
[pid 21933] close(3)                    = 0
[pid 21933] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21933] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21933] write(4, "78", 2)           = 2
[pid 21933] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21933] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21933] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21933] exit_group(0)               = ?
[pid 21933] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21933, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21934 attached
, child_tidptr=0x555555af35d0) = 21934
[pid 21934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21934] setpgid(0, 0)               = 0
[pid 21934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21934] write(3, "1000", 4)         = 4
[pid 21934] close(3)                    = 0
[pid 21934] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21934] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21934] write(4, "78", 2)           = 2
[pid 21934] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21934] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21934] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21934] exit_group(0)               = ?
[pid 21934] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21934, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21935 attached
, child_tidptr=0x555555af35d0) = 21935
[pid 21935] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21935] setpgid(0, 0)               = 0
[pid 21935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21935] write(3, "1000", 4)         = 4
[pid 21935] close(3)                    = 0
[pid 21935] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21935] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21935] write(4, "78", 2)           = 2
[pid 21935] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21935] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21935] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21935] exit_group(0)               = ?
[pid 21935] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21935, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21936 attached
, child_tidptr=0x555555af35d0) = 21936
[pid 21936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21936] setpgid(0, 0)               = 0
[pid 21936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21936] write(3, "1000", 4)         = 4
[pid 21936] close(3)                    = 0
[pid 21936] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21936] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21936] write(4, "78", 2)           = 2
[pid 21936] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21936] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21936] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21936] exit_group(0)               = ?
[pid 21936] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21936, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21937 attached
, child_tidptr=0x555555af35d0) = 21937
[pid 21937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21937] setpgid(0, 0)               = 0
[pid 21937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21937] write(3, "1000", 4)         = 4
[pid 21937] close(3)                    = 0
[pid 21937] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21937] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21937] write(4, "78", 2)           = 2
[pid 21937] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21937] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21937] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21937] exit_group(0)               = ?
[pid 21937] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21937, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21938 attached
, child_tidptr=0x555555af35d0) = 21938
[pid 21938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21938] setpgid(0, 0)               = 0
[pid 21938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21938] write(3, "1000", 4)         = 4
[pid 21938] close(3)                    = 0
[pid 21938] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21938] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21938] write(4, "78", 2)           = 2
[pid 21938] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21938] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21938] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21938] exit_group(0)               = ?
[pid 21938] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21938, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21939 attached
, child_tidptr=0x555555af35d0) = 21939
[pid 21939] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21939] setpgid(0, 0)               = 0
[pid 21939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21939] write(3, "1000", 4)         = 4
[pid 21939] close(3)                    = 0
[pid 21939] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21939] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21939] write(4, "78", 2)           = 2
[pid 21939] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21939] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21939] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21939] exit_group(0)               = ?
[pid 21939] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21939, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21940 attached
, child_tidptr=0x555555af35d0) = 21940
[pid 21940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21940] setpgid(0, 0)               = 0
[pid 21940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21940] write(3, "1000", 4)         = 4
[pid 21940] close(3)                    = 0
[pid 21940] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21940] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21940] write(4, "78", 2)           = 2
[pid 21940] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21940] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21940] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21940] exit_group(0)               = ?
[pid 21940] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21940, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21941 attached
, child_tidptr=0x555555af35d0) = 21941
[pid 21941] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21941] setpgid(0, 0)               = 0
[pid 21941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21941] write(3, "1000", 4)         = 4
[pid 21941] close(3)                    = 0
[pid 21941] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21941] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21941] write(4, "78", 2)           = 2
[pid 21941] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21941] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21941] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21941] exit_group(0)               = ?
[pid 21941] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21941, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21942 attached
, child_tidptr=0x555555af35d0) = 21942
[pid 21942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21942] setpgid(0, 0)               = 0
[pid 21942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21942] write(3, "1000", 4)         = 4
[pid 21942] close(3)                    = 0
[pid 21942] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21942] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21942] write(4, "78", 2)           = 2
[pid 21942] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21942] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21942] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21942] exit_group(0)               = ?
[pid 21942] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21942, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21943 attached
, child_tidptr=0x555555af35d0) = 21943
[pid 21943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21943] setpgid(0, 0)               = 0
[pid 21943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21943] write(3, "1000", 4)         = 4
[pid 21943] close(3)                    = 0
[pid 21943] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21943] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21943] write(4, "78", 2)           = 2
[pid 21943] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21943] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21943] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21943] exit_group(0)               = ?
[pid 21943] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21943, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21944 attached
, child_tidptr=0x555555af35d0) = 21944
[pid 21944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21944] setpgid(0, 0)               = 0
[pid 21944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21944] write(3, "1000", 4)         = 4
[pid 21944] close(3)                    = 0
[pid 21944] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21944] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21944] write(4, "78", 2)           = 2
[pid 21944] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21944] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21944] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21944] exit_group(0)               = ?
[pid 21944] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21944, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21945
./strace-static-x86_64: Process 21945 attached
[pid 21945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21945] setpgid(0, 0)               = 0
[pid 21945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21945] write(3, "1000", 4)         = 4
[pid 21945] close(3)                    = 0
[pid 21945] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21945] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21945] write(4, "78", 2)           = 2
[pid 21945] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21945] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21945] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 21945] exit_group(0)               = ?
[pid 21945] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21945, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21946 attached
, child_tidptr=0x555555af35d0) = 21946
[pid 21946] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21946] setpgid(0, 0)               = 0
[pid 21946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21946] write(3, "1000", 4)         = 4
[pid 21946] close(3)                    = 0
[pid 21946] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21946] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21946] write(4, "78", 2)           = 2
[pid 21946] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 21946] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21946] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21946] exit_group(0)               = ?
[pid 21946] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21946, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21947 attached
, child_tidptr=0x555555af35d0) = 21947
[pid 21947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21947] setpgid(0, 0)               = 0
[pid 21947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21947] write(3, "1000", 4)         = 4
[pid 21947] close(3)                    = 0
[pid 21947] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21947] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21947] write(4, "78", 2)           = 2
[pid 21947] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21947] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21947] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21947] exit_group(0)               = ?
[pid 21947] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21947, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21948 attached
, child_tidptr=0x555555af35d0) = 21948
[pid 21948] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21948] setpgid(0, 0)               = 0
[pid 21948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21948] write(3, "1000", 4)         = 4
[pid 21948] close(3)                    = 0
[pid 21948] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21948] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21948] write(4, "78", 2)           = 2
[pid 21948] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21948] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21948] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21948] exit_group(0)               = ?
[pid 21948] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21948, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21949
./strace-static-x86_64: Process 21949 attached
[pid 21949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21949] setpgid(0, 0)               = 0
[pid 21949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21949] write(3, "1000", 4)         = 4
[pid 21949] close(3)                    = 0
[pid 21949] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21949] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21949] write(4, "78", 2)           = 2
[pid 21949] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21949] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21949] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21949] exit_group(0)               = ?
[pid 21949] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21949, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21950
./strace-static-x86_64: Process 21950 attached
[pid 21950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21950] setpgid(0, 0)               = 0
[pid 21950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21950] write(3, "1000", 4)         = 4
[pid 21950] close(3)                    = 0
[pid 21950] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21950] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21950] write(4, "78", 2)           = 2
[pid 21950] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21950] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21950] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21950] exit_group(0)               = ?
[pid 21950] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21950, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21951
./strace-static-x86_64: Process 21951 attached
[pid 21951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21951] setpgid(0, 0)               = 0
[pid 21951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21951] write(3, "1000", 4)         = 4
[pid 21951] close(3)                    = 0
[pid 21951] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21951] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21951] write(4, "78", 2)           = 2
[pid 21951] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21951] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21951] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21951] exit_group(0)               = ?
[pid 21951] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21951, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21952
./strace-static-x86_64: Process 21952 attached
[pid 21952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21952] setpgid(0, 0)               = 0
[pid 21952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21952] write(3, "1000", 4)         = 4
[pid 21952] close(3)                    = 0
[pid 21952] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21952] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21952] write(4, "78", 2)           = 2
[pid 21952] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21952] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21952] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21952] exit_group(0)               = ?
[pid 21952] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21952, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21953 attached
, child_tidptr=0x555555af35d0) = 21953
[pid 21953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21953] setpgid(0, 0)               = 0
[pid 21953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21953] write(3, "1000", 4)         = 4
[pid 21953] close(3)                    = 0
[pid 21953] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21953] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21953] write(4, "78", 2)           = 2
[pid 21953] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21953] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21953] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21953] exit_group(0)               = ?
[pid 21953] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21953, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21954
./strace-static-x86_64: Process 21954 attached
[pid 21954] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21954] setpgid(0, 0)               = 0
[pid 21954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21954] write(3, "1000", 4)         = 4
[pid 21954] close(3)                    = 0
[pid 21954] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21954] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21954] write(4, "78", 2)           = 2
[pid 21954] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21954] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21954] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21954] exit_group(0)               = ?
[pid 21954] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21954, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21955 attached
, child_tidptr=0x555555af35d0) = 21955
[pid 21955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21955] setpgid(0, 0)               = 0
[pid 21955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21955] write(3, "1000", 4)         = 4
[pid 21955] close(3)                    = 0
[pid 21955] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21955] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21955] write(4, "78", 2)           = 2
[pid 21955] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21955] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21955] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21955] exit_group(0)               = ?
[pid 21955] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21955, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21956 attached
, child_tidptr=0x555555af35d0) = 21956
[pid 21956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21956] setpgid(0, 0)               = 0
[pid 21956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21956] write(3, "1000", 4)         = 4
[pid 21956] close(3)                    = 0
[pid 21956] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21956] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21956] write(4, "78", 2)           = 2
[pid 21956] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21956] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21956] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21956] exit_group(0)               = ?
[pid 21956] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21956, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21957 attached
, child_tidptr=0x555555af35d0) = 21957
[pid 21957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21957] setpgid(0, 0)               = 0
[pid 21957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21957] write(3, "1000", 4)         = 4
[pid 21957] close(3)                    = 0
[pid 21957] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21957] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21957] write(4, "78", 2)           = 2
[pid 21957] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21957] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21957] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21957] exit_group(0)               = ?
[pid 21957] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21957, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21958
./strace-static-x86_64: Process 21958 attached
[pid 21958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21958] setpgid(0, 0)               = 0
[pid 21958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21958] write(3, "1000", 4)         = 4
[pid 21958] close(3)                    = 0
[pid 21958] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21958] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21958] write(4, "78", 2)           = 2
[pid 21958] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21958] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21958] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21958] exit_group(0)               = ?
[pid 21958] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21958, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21959 attached
, child_tidptr=0x555555af35d0) = 21959
[pid 21959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21959] setpgid(0, 0)               = 0
[pid 21959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21959] write(3, "1000", 4)         = 4
[pid 21959] close(3)                    = 0
[pid 21959] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21959] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21959] write(4, "78", 2)           = 2
[pid 21959] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21959] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21959] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21959] exit_group(0)               = ?
[pid 21959] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21959, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21960 attached
, child_tidptr=0x555555af35d0) = 21960
[pid 21960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21960] setpgid(0, 0)               = 0
[pid 21960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21960] write(3, "1000", 4)         = 4
[pid 21960] close(3)                    = 0
[pid 21960] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21960] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21960] write(4, "78", 2)           = 2
[pid 21960] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21960] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21960] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21960] exit_group(0)               = ?
[pid 21960] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21960, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21961 attached
, child_tidptr=0x555555af35d0) = 21961
[pid 21961] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21961] setpgid(0, 0)               = 0
[pid 21961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21961] write(3, "1000", 4)         = 4
[pid 21961] close(3)                    = 0
[pid 21961] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21961] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21961] write(4, "78", 2)           = 2
[pid 21961] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21961] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21961] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21961] exit_group(0)               = ?
[pid 21961] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21961, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21962 attached
, child_tidptr=0x555555af35d0) = 21962
[pid 21962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21962] setpgid(0, 0)               = 0
[pid 21962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21962] write(3, "1000", 4)         = 4
[pid 21962] close(3)                    = 0
[pid 21962] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21962] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21962] write(4, "78", 2)           = 2
[pid 21962] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21962] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21962] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21962] exit_group(0)               = ?
[pid 21962] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21962, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21963 attached
, child_tidptr=0x555555af35d0) = 21963
[pid 21963] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21963] setpgid(0, 0)               = 0
[pid 21963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21963] write(3, "1000", 4)         = 4
[pid 21963] close(3)                    = 0
[pid 21963] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21963] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21963] write(4, "78", 2)           = 2
[pid 21963] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21963] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21963] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21963] exit_group(0)               = ?
[pid 21963] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21963, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21964
./strace-static-x86_64: Process 21964 attached
[pid 21964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21964] setpgid(0, 0)               = 0
[pid 21964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21964] write(3, "1000", 4)         = 4
[pid 21964] close(3)                    = 0
[pid 21964] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21964] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21964] write(4, "78", 2)           = 2
[pid 21964] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21964] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21964] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21964] exit_group(0)               = ?
[pid 21964] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21964, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21965 attached
, child_tidptr=0x555555af35d0) = 21965
[pid 21965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21965] setpgid(0, 0)               = 0
[pid 21965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21965] write(3, "1000", 4)         = 4
[pid 21965] close(3)                    = 0
[pid 21965] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21965] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21965] write(4, "78", 2)           = 2
[pid 21965] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21965] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21965] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21965] exit_group(0)               = ?
[pid 21965] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21965, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21966 attached
, child_tidptr=0x555555af35d0) = 21966
[pid 21966] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21966] setpgid(0, 0)               = 0
[pid 21966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21966] write(3, "1000", 4)         = 4
[pid 21966] close(3)                    = 0
[pid 21966] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21966] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21966] write(4, "78", 2)           = 2
[pid 21966] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21966] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21966] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21966] exit_group(0)               = ?
[pid 21966] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21966, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21967 attached
, child_tidptr=0x555555af35d0) = 21967
[pid 21967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21967] setpgid(0, 0)               = 0
[pid 21967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21967] write(3, "1000", 4)         = 4
[pid 21967] close(3)                    = 0
[pid 21967] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21967] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21967] write(4, "78", 2)           = 2
[pid 21967] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21967] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21967] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21967] exit_group(0)               = ?
[pid 21967] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21967, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21968 attached
, child_tidptr=0x555555af35d0) = 21968
[pid 21968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21968] setpgid(0, 0)               = 0
[pid 21968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21968] write(3, "1000", 4)         = 4
[pid 21968] close(3)                    = 0
[pid 21968] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21968] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21968] write(4, "78", 2)           = 2
[pid 21968] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21968] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21968] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21968] exit_group(0)               = ?
[pid 21968] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21968, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21969 attached
, child_tidptr=0x555555af35d0) = 21969
[pid 21969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21969] setpgid(0, 0)               = 0
[pid 21969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21969] write(3, "1000", 4)         = 4
[pid 21969] close(3)                    = 0
[pid 21969] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21969] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21969] write(4, "78", 2)           = 2
[pid 21969] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21969] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21969] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21969] exit_group(0)               = ?
[pid 21969] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21969, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21970
./strace-static-x86_64: Process 21970 attached
[pid 21970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21970] setpgid(0, 0)               = 0
[pid 21970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21970] write(3, "1000", 4)         = 4
[pid 21970] close(3)                    = 0
[pid 21970] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21970] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21970] write(4, "78", 2)           = 2
[pid 21970] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21970] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21970] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21970] exit_group(0)               = ?
[pid 21970] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21970, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21971 attached
, child_tidptr=0x555555af35d0) = 21971
[pid 21971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21971] setpgid(0, 0)               = 0
[pid 21971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21971] write(3, "1000", 4)         = 4
[pid 21971] close(3)                    = 0
[pid 21971] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21971] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21971] write(4, "78", 2)           = 2
[pid 21971] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21971] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21971] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21971] exit_group(0)               = ?
[pid 21971] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21971, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21972 attached
, child_tidptr=0x555555af35d0) = 21972
[pid 21972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21972] setpgid(0, 0)               = 0
[pid 21972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21972] write(3, "1000", 4)         = 4
[pid 21972] close(3)                    = 0
[pid 21972] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21972] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21972] write(4, "78", 2)           = 2
[pid 21972] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21972] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21972] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21972] exit_group(0)               = ?
[pid 21972] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21972, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21973 attached
, child_tidptr=0x555555af35d0) = 21973
[pid 21973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21973] setpgid(0, 0)               = 0
[pid 21973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21973] write(3, "1000", 4)         = 4
[pid 21973] close(3)                    = 0
[pid 21973] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21973] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21973] write(4, "78", 2)           = 2
[pid 21973] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21973] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21973] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21973] exit_group(0)               = ?
[pid 21973] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21973, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21974 attached
, child_tidptr=0x555555af35d0) = 21974
[pid 21974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21974] setpgid(0, 0)               = 0
[pid 21974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21974] write(3, "1000", 4)         = 4
[pid 21974] close(3)                    = 0
[pid 21974] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21974] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21974] write(4, "78", 2)           = 2
[pid 21974] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21974] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21974] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21974] exit_group(0)               = ?
[pid 21974] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21974, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21975 attached
, child_tidptr=0x555555af35d0) = 21975
[pid 21975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21975] setpgid(0, 0)               = 0
[pid 21975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21975] write(3, "1000", 4)         = 4
[pid 21975] close(3)                    = 0
[pid 21975] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21975] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21975] write(4, "78", 2)           = 2
[pid 21975] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21975] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21975] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21975] exit_group(0)               = ?
[pid 21975] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21975, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21976 attached
, child_tidptr=0x555555af35d0) = 21976
[pid 21976] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21976] setpgid(0, 0)               = 0
[pid 21976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21976] write(3, "1000", 4)         = 4
[pid 21976] close(3)                    = 0
[pid 21976] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21976] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21976] write(4, "78", 2)           = 2
[pid 21976] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21976] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21976] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21976] exit_group(0)               = ?
[pid 21976] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21976, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21977 attached
, child_tidptr=0x555555af35d0) = 21977
[pid 21977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21977] setpgid(0, 0)               = 0
[pid 21977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21977] write(3, "1000", 4)         = 4
[pid 21977] close(3)                    = 0
[pid 21977] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21977] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21977] write(4, "78", 2)           = 2
[pid 21977] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21977] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21977] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21977] exit_group(0)               = ?
[pid 21977] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21977, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21978 attached
, child_tidptr=0x555555af35d0) = 21978
[pid 21978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21978] setpgid(0, 0)               = 0
[pid 21978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21978] write(3, "1000", 4)         = 4
[pid 21978] close(3)                    = 0
[pid 21978] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21978] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21978] write(4, "78", 2)           = 2
[pid 21978] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21978] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21978] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21978] exit_group(0)               = ?
[pid 21978] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21978, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21979
./strace-static-x86_64: Process 21979 attached
[pid 21979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21979] setpgid(0, 0)               = 0
[pid 21979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21979] write(3, "1000", 4)         = 4
[pid 21979] close(3)                    = 0
[pid 21979] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21979] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21979] write(4, "78", 2)           = 2
[pid 21979] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21979] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21979] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21979] exit_group(0)               = ?
[pid 21979] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21979, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21980 attached
, child_tidptr=0x555555af35d0) = 21980
[pid 21980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21980] setpgid(0, 0)               = 0
[pid 21980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21980] write(3, "1000", 4)         = 4
[pid 21980] close(3)                    = 0
[pid 21980] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21980] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21980] write(4, "78", 2)           = 2
[pid 21980] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21980] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21980] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21980] exit_group(0)               = ?
[pid 21980] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21980, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21981 attached
, child_tidptr=0x555555af35d0) = 21981
[pid 21981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21981] setpgid(0, 0)               = 0
[pid 21981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21981] write(3, "1000", 4)         = 4
[pid 21981] close(3)                    = 0
[pid 21981] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21981] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21981] write(4, "78", 2)           = 2
[pid 21981] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21981] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21981] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21981] exit_group(0)               = ?
[pid 21981] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21981, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21982 attached
, child_tidptr=0x555555af35d0) = 21982
[pid 21982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21982] setpgid(0, 0)               = 0
[pid 21982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21982] write(3, "1000", 4)         = 4
[pid 21982] close(3)                    = 0
[pid 21982] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21982] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21982] write(4, "78", 2)           = 2
[pid 21982] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21982] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21982] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21982] exit_group(0)               = ?
[pid 21982] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21982, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21983
./strace-static-x86_64: Process 21983 attached
[pid 21983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21983] setpgid(0, 0)               = 0
[pid 21983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21983] write(3, "1000", 4)         = 4
[pid 21983] close(3)                    = 0
[pid 21983] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21983] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21983] write(4, "78", 2)           = 2
[pid 21983] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 21983] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21983] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 21983] exit_group(0)               = ?
[pid 21983] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21983, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21984
./strace-static-x86_64: Process 21984 attached
[pid 21984] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21984] setpgid(0, 0)               = 0
[pid 21984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21984] write(3, "1000", 4)         = 4
[pid 21984] close(3)                    = 0
[pid 21984] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21984] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21984] write(4, "78", 2)           = 2
[pid 21984] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21984] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21984] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21984] exit_group(0)               = ?
[pid 21984] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21984, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21985
./strace-static-x86_64: Process 21985 attached
[pid 21985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21985] setpgid(0, 0)               = 0
[pid 21985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21985] write(3, "1000", 4)         = 4
[pid 21985] close(3)                    = 0
[pid 21985] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21985] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21985] write(4, "78", 2)           = 2
[pid 21985] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21985] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21985] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21985] exit_group(0)               = ?
[pid 21985] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21985, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21986
./strace-static-x86_64: Process 21986 attached
[pid 21986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21986] setpgid(0, 0)               = 0
[pid 21986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21986] write(3, "1000", 4)         = 4
[pid 21986] close(3)                    = 0
[pid 21986] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21986] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21986] write(4, "78", 2)           = 2
[pid 21986] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21986] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21986] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21986] exit_group(0)               = ?
[pid 21986] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21986, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21987
./strace-static-x86_64: Process 21987 attached
[pid 21987] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21987] setpgid(0, 0)               = 0
[pid 21987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21987] write(3, "1000", 4)         = 4
[pid 21987] close(3)                    = 0
[pid 21987] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21987] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21987] write(4, "78", 2)           = 2
[pid 21987] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21987] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21987] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21987] exit_group(0)               = ?
[pid 21987] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21987, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21988
./strace-static-x86_64: Process 21988 attached
[pid 21988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21988] setpgid(0, 0)               = 0
[pid 21988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21988] write(3, "1000", 4)         = 4
[pid 21988] close(3)                    = 0
[pid 21988] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21988] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21988] write(4, "78", 2)           = 2
[pid 21988] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21988] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21988] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21988] exit_group(0)               = ?
[pid 21988] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21988, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21989
./strace-static-x86_64: Process 21989 attached
[pid 21989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21989] setpgid(0, 0)               = 0
[pid 21989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21989] write(3, "1000", 4)         = 4
[pid 21989] close(3)                    = 0
[pid 21989] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21989] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21989] write(4, "78", 2)           = 2
[pid 21989] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21989] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21989] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21989] exit_group(0)               = ?
[pid 21989] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21989, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21990
./strace-static-x86_64: Process 21990 attached
[pid 21990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21990] setpgid(0, 0)               = 0
[pid 21990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21990] write(3, "1000", 4)         = 4
[pid 21990] close(3)                    = 0
[pid 21990] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21990] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21990] write(4, "78", 2)           = 2
[pid 21990] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21990] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21990] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21990] exit_group(0)               = ?
[pid 21990] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21990, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21991
./strace-static-x86_64: Process 21991 attached
[pid 21991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21991] setpgid(0, 0)               = 0
[pid 21991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21991] write(3, "1000", 4)         = 4
[pid 21991] close(3)                    = 0
[pid 21991] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21991] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21991] write(4, "78", 2)           = 2
[pid 21991] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21991] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21991] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21991] exit_group(0)               = ?
[pid 21991] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21991, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21992
./strace-static-x86_64: Process 21992 attached
[pid 21992] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21992] setpgid(0, 0)               = 0
[pid 21992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21992] write(3, "1000", 4)         = 4
[pid 21992] close(3)                    = 0
[pid 21992] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21992] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21992] write(4, "78", 2)           = 2
[pid 21992] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21992] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21992] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21992] exit_group(0)               = ?
[pid 21992] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21992, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21993
./strace-static-x86_64: Process 21993 attached
[pid 21993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21993] setpgid(0, 0)               = 0
[pid 21993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21993] write(3, "1000", 4)         = 4
[pid 21993] close(3)                    = 0
[pid 21993] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21993] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21993] write(4, "78", 2)           = 2
[pid 21993] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21993] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21993] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21993] exit_group(0)               = ?
[pid 21993] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21993, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21994
./strace-static-x86_64: Process 21994 attached
[pid 21994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21994] setpgid(0, 0)               = 0
[pid 21994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21994] write(3, "1000", 4)         = 4
[pid 21994] close(3)                    = 0
[pid 21994] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21994] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21994] write(4, "78", 2)           = 2
[pid 21994] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21994] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21994] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21994] exit_group(0)               = ?
[pid 21994] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21994, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21995
./strace-static-x86_64: Process 21995 attached
[pid 21995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21995] setpgid(0, 0)               = 0
[pid 21995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21995] write(3, "1000", 4)         = 4
[pid 21995] close(3)                    = 0
[pid 21995] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21995] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21995] write(4, "78", 2)           = 2
[pid 21995] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21995] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21995] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21995] exit_group(0)               = ?
[pid 21995] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21995, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21996
./strace-static-x86_64: Process 21996 attached
[pid 21996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21996] setpgid(0, 0)               = 0
[pid 21996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21996] write(3, "1000", 4)         = 4
[pid 21996] close(3)                    = 0
[pid 21996] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21996] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21996] write(4, "78", 2)           = 2
[pid 21996] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21996] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21996] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21996] exit_group(0)               = ?
[pid 21996] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21996, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21997
./strace-static-x86_64: Process 21997 attached
[pid 21997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21997] setpgid(0, 0)               = 0
[pid 21997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21997] write(3, "1000", 4)         = 4
[pid 21997] close(3)                    = 0
[pid 21997] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21997] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21997] write(4, "78", 2)           = 2
[pid 21997] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21997] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21997] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21997] exit_group(0)               = ?
[pid 21997] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21997, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21998
./strace-static-x86_64: Process 21998 attached
[pid 21998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21998] setpgid(0, 0)               = 0
[pid 21998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21998] write(3, "1000", 4)         = 4
[pid 21998] close(3)                    = 0
[pid 21998] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21998] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21998] write(4, "78", 2)           = 2
[pid 21998] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21998] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21998] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21998] exit_group(0)               = ?
[pid 21998] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21998, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 21999
./strace-static-x86_64: Process 21999 attached
[pid 21999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 21999] setpgid(0, 0)               = 0
[pid 21999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 21999] write(3, "1000", 4)         = 4
[pid 21999] close(3)                    = 0
[pid 21999] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 21999] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 21999] write(4, "78", 2)           = 2
[pid 21999] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 21999] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 21999] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 21999] exit_group(0)               = ?
[pid 21999] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21999, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22000
./strace-static-x86_64: Process 22000 attached
[pid 22000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22000] setpgid(0, 0)               = 0
[pid 22000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22000] write(3, "1000", 4)         = 4
[pid 22000] close(3)                    = 0
[pid 22000] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22000] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22000] write(4, "78", 2)           = 2
[pid 22000] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22000] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22000] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22000] exit_group(0)               = ?
[pid 22000] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22000, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22001
./strace-static-x86_64: Process 22001 attached
[pid 22001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22001] setpgid(0, 0)               = 0
[pid 22001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22001] write(3, "1000", 4)         = 4
[pid 22001] close(3)                    = 0
[pid 22001] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22001] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22001] write(4, "78", 2)           = 2
[pid 22001] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22001] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22001] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22001] exit_group(0)               = ?
[pid 22001] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22001, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22002
./strace-static-x86_64: Process 22002 attached
[pid 22002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22002] setpgid(0, 0)               = 0
[pid 22002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22002] write(3, "1000", 4)         = 4
[pid 22002] close(3)                    = 0
[pid 22002] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22002] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22002] write(4, "78", 2)           = 2
[pid 22002] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22002] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22002] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22002] exit_group(0)               = ?
[pid 22002] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22002, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22003
./strace-static-x86_64: Process 22003 attached
[pid 22003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22003] setpgid(0, 0)               = 0
[pid 22003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22003] write(3, "1000", 4)         = 4
[pid 22003] close(3)                    = 0
[pid 22003] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22003] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22003] write(4, "78", 2)           = 2
[pid 22003] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22003] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22003] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22003] exit_group(0)               = ?
[pid 22003] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22003, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22004
./strace-static-x86_64: Process 22004 attached
[pid 22004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22004] setpgid(0, 0)               = 0
[pid 22004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22004] write(3, "1000", 4)         = 4
[pid 22004] close(3)                    = 0
[pid 22004] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22004] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22004] write(4, "78", 2)           = 2
[pid 22004] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22004] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22004] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22004] exit_group(0)               = ?
[pid 22004] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22004, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22005 attached
, child_tidptr=0x555555af35d0) = 22005
[pid 22005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22005] setpgid(0, 0)               = 0
[pid 22005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22005] write(3, "1000", 4)         = 4
[pid 22005] close(3)                    = 0
[pid 22005] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22005] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22005] write(4, "78", 2)           = 2
[pid 22005] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22005] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22005] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22005] exit_group(0)               = ?
[pid 22005] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22005, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22006 attached
, child_tidptr=0x555555af35d0) = 22006
[pid 22006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22006] setpgid(0, 0)               = 0
[pid 22006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22006] write(3, "1000", 4)         = 4
[pid 22006] close(3)                    = 0
[pid 22006] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22006] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22006] write(4, "78", 2)           = 2
[pid 22006] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22006] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22006] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22006] exit_group(0)               = ?
[pid 22006] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22006, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22007 attached
, child_tidptr=0x555555af35d0) = 22007
[pid 22007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22007] setpgid(0, 0)               = 0
[pid 22007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22007] write(3, "1000", 4)         = 4
[pid 22007] close(3)                    = 0
[pid 22007] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22007] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22007] write(4, "78", 2)           = 2
[pid 22007] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22007] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22007] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22007] exit_group(0)               = ?
[pid 22007] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22007, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22008
./strace-static-x86_64: Process 22008 attached
[pid 22008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22008] setpgid(0, 0)               = 0
[pid 22008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22008] write(3, "1000", 4)         = 4
[pid 22008] close(3)                    = 0
[pid 22008] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22008] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22008] write(4, "78", 2)           = 2
[pid 22008] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22008] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22008] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22008] exit_group(0)               = ?
[pid 22008] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22008, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22009 attached
, child_tidptr=0x555555af35d0) = 22009
[pid 22009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22009] setpgid(0, 0)               = 0
[pid 22009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22009] write(3, "1000", 4)         = 4
[pid 22009] close(3)                    = 0
[pid 22009] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22009] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22009] write(4, "78", 2)           = 2
[pid 22009] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22009] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22009] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22009] exit_group(0)               = ?
[pid 22009] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22009, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22010 attached
, child_tidptr=0x555555af35d0) = 22010
[pid 22010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22010] setpgid(0, 0)               = 0
[pid 22010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22010] write(3, "1000", 4)         = 4
[pid 22010] close(3)                    = 0
[pid 22010] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22010] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22010] write(4, "78", 2)           = 2
[pid 22010] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22010] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22010] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22010] exit_group(0)               = ?
[pid 22010] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22010, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22011 attached
, child_tidptr=0x555555af35d0) = 22011
[pid 22011] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22011] setpgid(0, 0)               = 0
[pid 22011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22011] write(3, "1000", 4)         = 4
[pid 22011] close(3)                    = 0
[pid 22011] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22011] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22011] write(4, "78", 2)           = 2
[pid 22011] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22011] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22011] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22011] exit_group(0)               = ?
[pid 22011] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22011, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22012 attached
, child_tidptr=0x555555af35d0) = 22012
[pid 22012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22012] setpgid(0, 0)               = 0
[pid 22012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22012] write(3, "1000", 4)         = 4
[pid 22012] close(3)                    = 0
[pid 22012] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22012] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22012] write(4, "78", 2)           = 2
[pid 22012] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22012] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22012] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22012] exit_group(0)               = ?
[pid 22012] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22012, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22013 attached
, child_tidptr=0x555555af35d0) = 22013
[pid 22013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22013] setpgid(0, 0)               = 0
[pid 22013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22013] write(3, "1000", 4)         = 4
[pid 22013] close(3)                    = 0
[pid 22013] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22013] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22013] write(4, "78", 2)           = 2
[pid 22013] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22013] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22013] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22013] exit_group(0)               = ?
[pid 22013] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22013, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22014 attached
, child_tidptr=0x555555af35d0) = 22014
[pid 22014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22014] setpgid(0, 0)               = 0
[pid 22014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22014] write(3, "1000", 4)         = 4
[pid 22014] close(3)                    = 0
[pid 22014] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22014] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22014] write(4, "78", 2)           = 2
[pid 22014] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22014] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22014] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22014] exit_group(0)               = ?
[pid 22014] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22014, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22015 attached
, child_tidptr=0x555555af35d0) = 22015
[pid 22015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22015] setpgid(0, 0)               = 0
[pid 22015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22015] write(3, "1000", 4)         = 4
[pid 22015] close(3)                    = 0
[pid 22015] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22015] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22015] write(4, "78", 2)           = 2
[pid 22015] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22015] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22015] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 22015] exit_group(0)               = ?
[pid 22015] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22015, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22016 attached
, child_tidptr=0x555555af35d0) = 22016
[pid 22016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22016] setpgid(0, 0)               = 0
[pid 22016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22016] write(3, "1000", 4)         = 4
[pid 22016] close(3)                    = 0
[pid 22016] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22016] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22016] write(4, "78", 2)           = 2
[pid 22016] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22016] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22016] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22016] exit_group(0)               = ?
[pid 22016] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22016, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22017 attached
, child_tidptr=0x555555af35d0) = 22017
[pid 22017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22017] setpgid(0, 0)               = 0
[pid 22017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22017] write(3, "1000", 4)         = 4
[pid 22017] close(3)                    = 0
[pid 22017] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22017] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22017] write(4, "78", 2)           = 2
[pid 22017] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22017] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22017] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 22017] exit_group(0)               = ?
[pid 22017] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22017, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22018 attached
, child_tidptr=0x555555af35d0) = 22018
[pid 22018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22018] setpgid(0, 0)               = 0
[pid 22018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22018] write(3, "1000", 4)         = 4
[pid 22018] close(3)                    = 0
[pid 22018] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22018] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22018] write(4, "78", 2)           = 2
[pid 22018] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22018] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22018] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22018] exit_group(0)               = ?
[pid 22018] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22018, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22019 attached
, child_tidptr=0x555555af35d0) = 22019
[pid 22019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22019] setpgid(0, 0)               = 0
[pid 22019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22019] write(3, "1000", 4)         = 4
[pid 22019] close(3)                    = 0
[pid 22019] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22019] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22019] write(4, "78", 2)           = 2
[pid 22019] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22019] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22019] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22019] exit_group(0)               = ?
[pid 22019] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22019, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22020 attached
 <unfinished ...>
[pid 22020] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3600] <... clone resumed>, child_tidptr=0x555555af35d0) = 22020
[pid 22020] <... prctl resumed>)        = 0
[pid 22020] setpgid(0, 0)               = 0
[pid 22020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22020] write(3, "1000", 4)         = 4
[pid 22020] close(3)                    = 0
[pid 22020] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22020] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22020] write(4, "78", 2)           = 2
[pid 22020] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22020] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22020] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22020] exit_group(0)               = ?
[pid 22020] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22020, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22021 attached
, child_tidptr=0x555555af35d0) = 22021
[pid 22021] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22021] setpgid(0, 0)               = 0
[pid 22021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22021] write(3, "1000", 4)         = 4
[pid 22021] close(3)                    = 0
[pid 22021] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22021] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22021] write(4, "78", 2)           = 2
[pid 22021] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22021] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22021] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 22021] exit_group(0)               = ?
[pid 22021] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22021, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22022 attached
, child_tidptr=0x555555af35d0) = 22022
[pid 22022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22022] setpgid(0, 0)               = 0
[pid 22022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22022] write(3, "1000", 4)         = 4
[pid 22022] close(3)                    = 0
[pid 22022] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22022] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22022] write(4, "78", 2)           = 2
[pid 22022] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 22022] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22022] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[pid 22022] exit_group(0)               = ?
[pid 22022] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22022, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22023 attached
, child_tidptr=0x555555af35d0) = 22023
[pid 22023] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22023] setpgid(0, 0)               = 0
[pid 22023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22023] write(3, "1000", 4)         = 4
[pid 22023] close(3)                    = 0
[pid 22023] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22023] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22023] write(4, "78", 2)           = 2
[pid 22023] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22023] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22023] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22023] exit_group(0)               = ?
[pid 22023] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22023, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22024 attached
, child_tidptr=0x555555af35d0) = 22024
[pid 22024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22024] setpgid(0, 0)               = 0
[pid 22024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22024] write(3, "1000", 4)         = 4
[pid 22024] close(3)                    = 0
[pid 22024] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22024] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22024] write(4, "78", 2)           = 2
[pid 22024] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22024] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22024] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22024] exit_group(0)               = ?
[pid 22024] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22024, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22025
./strace-static-x86_64: Process 22025 attached
[pid 22025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22025] setpgid(0, 0)               = 0
[pid 22025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22025] write(3, "1000", 4)         = 4
[pid 22025] close(3)                    = 0
[pid 22025] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22025] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22025] write(4, "78", 2)           = 2
[pid 22025] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22025] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22025] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22025] exit_group(0)               = ?
[pid 22025] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22025, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22026 attached
, child_tidptr=0x555555af35d0) = 22026
[pid 22026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22026] setpgid(0, 0)               = 0
[pid 22026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22026] write(3, "1000", 4)         = 4
[pid 22026] close(3)                    = 0
[pid 22026] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22026] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22026] write(4, "78", 2)           = 2
[pid 22026] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22026] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22026] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22026] exit_group(0)               = ?
[pid 22026] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22026, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22027 attached
, child_tidptr=0x555555af35d0) = 22027
[pid 22027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22027] setpgid(0, 0)               = 0
[pid 22027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22027] write(3, "1000", 4)         = 4
[pid 22027] close(3)                    = 0
[pid 22027] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22027] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22027] write(4, "78", 2)           = 2
[pid 22027] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22027] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22027] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22027] exit_group(0)               = ?
[pid 22027] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22027, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22028
./strace-static-x86_64: Process 22028 attached
[pid 22028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22028] setpgid(0, 0)               = 0
[pid 22028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22028] write(3, "1000", 4)         = 4
[pid 22028] close(3)                    = 0
[pid 22028] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22028] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22028] write(4, "78", 2)           = 2
[pid 22028] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22028] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22028] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22028] exit_group(0)               = ?
[pid 22028] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22028, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22029 attached
, child_tidptr=0x555555af35d0) = 22029
[pid 22029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22029] setpgid(0, 0)               = 0
[pid 22029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22029] write(3, "1000", 4)         = 4
[pid 22029] close(3)                    = 0
[pid 22029] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22029] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22029] write(4, "78", 2)           = 2
[pid 22029] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22029] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22029] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22029] exit_group(0)               = ?
[pid 22029] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22029, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22030 attached
, child_tidptr=0x555555af35d0) = 22030
[pid 22030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22030] setpgid(0, 0)               = 0
[pid 22030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22030] write(3, "1000", 4)         = 4
[pid 22030] close(3)                    = 0
[pid 22030] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22030] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22030] write(4, "78", 2)           = 2
[pid 22030] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22030] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22030] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22030] exit_group(0)               = ?
[pid 22030] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22030, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22031 attached
, child_tidptr=0x555555af35d0) = 22031
[pid 22031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22031] setpgid(0, 0)               = 0
[pid 22031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22031] write(3, "1000", 4)         = 4
[pid 22031] close(3)                    = 0
[pid 22031] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22031] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22031] write(4, "78", 2)           = 2
[pid 22031] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22031] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22031] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22031] exit_group(0)               = ?
[pid 22031] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22031, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22032 attached
, child_tidptr=0x555555af35d0) = 22032
[pid 22032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22032] setpgid(0, 0)               = 0
[pid 22032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22032] write(3, "1000", 4)         = 4
[pid 22032] close(3)                    = 0
[pid 22032] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22032] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22032] write(4, "78", 2)           = 2
[pid 22032] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22032] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22032] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22032] exit_group(0)               = ?
[pid 22032] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22032, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22033 attached
, child_tidptr=0x555555af35d0) = 22033
[pid 22033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22033] setpgid(0, 0)               = 0
[pid 22033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22033] write(3, "1000", 4)         = 4
[pid 22033] close(3)                    = 0
[pid 22033] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22033] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22033] write(4, "78", 2)           = 2
[pid 22033] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22033] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22033] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22033] exit_group(0)               = ?
[pid 22033] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22033, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22034 attached
, child_tidptr=0x555555af35d0) = 22034
[pid 22034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22034] setpgid(0, 0)               = 0
[pid 22034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22034] write(3, "1000", 4)         = 4
[pid 22034] close(3)                    = 0
[pid 22034] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22034] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22034] write(4, "78", 2)           = 2
[pid 22034] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22034] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22034] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22034] exit_group(0)               = ?
[pid 22034] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22034, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22035
./strace-static-x86_64: Process 22035 attached
[pid 22035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22035] setpgid(0, 0)               = 0
[pid 22035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22035] write(3, "1000", 4)         = 4
[pid 22035] close(3)                    = 0
[pid 22035] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22035] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22035] write(4, "78", 2)           = 2
[pid 22035] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22035] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22035] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22035] exit_group(0)               = ?
[pid 22035] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22035, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22036 attached
, child_tidptr=0x555555af35d0) = 22036
[pid 22036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22036] setpgid(0, 0)               = 0
[pid 22036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22036] write(3, "1000", 4)         = 4
[pid 22036] close(3)                    = 0
[pid 22036] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22036] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22036] write(4, "78", 2)           = 2
[pid 22036] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22036] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22036] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22036] exit_group(0)               = ?
[pid 22036] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22036, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22037 attached
, child_tidptr=0x555555af35d0) = 22037
[pid 22037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22037] setpgid(0, 0)               = 0
[pid 22037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22037] write(3, "1000", 4)         = 4
[pid 22037] close(3)                    = 0
[pid 22037] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22037] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22037] write(4, "78", 2)           = 2
[pid 22037] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22037] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22037] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22037] exit_group(0)               = ?
[pid 22037] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22037, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22038 attached
, child_tidptr=0x555555af35d0) = 22038
[pid 22038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22038] setpgid(0, 0)               = 0
[pid 22038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22038] write(3, "1000", 4)         = 4
[pid 22038] close(3)                    = 0
[pid 22038] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22038] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22038] write(4, "78", 2)           = 2
[pid 22038] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22038] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22038] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22038] exit_group(0)               = ?
[pid 22038] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22038, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22039 attached
, child_tidptr=0x555555af35d0) = 22039
[pid 22039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22039] setpgid(0, 0)               = 0
[pid 22039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22039] write(3, "1000", 4)         = 4
[pid 22039] close(3)                    = 0
[pid 22039] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22039] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22039] write(4, "78", 2)           = 2
[pid 22039] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22039] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22039] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22039] exit_group(0)               = ?
[pid 22039] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22039, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22040 attached
, child_tidptr=0x555555af35d0) = 22040
[pid 22040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22040] setpgid(0, 0)               = 0
[pid 22040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22040] write(3, "1000", 4)         = 4
[pid 22040] close(3)                    = 0
[pid 22040] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22040] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22040] write(4, "78", 2)           = 2
[pid 22040] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22040] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22040] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22040] exit_group(0)               = ?
[pid 22040] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22040, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22041 attached
, child_tidptr=0x555555af35d0) = 22041
[pid 22041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22041] setpgid(0, 0)               = 0
[pid 22041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22041] write(3, "1000", 4)         = 4
[pid 22041] close(3)                    = 0
[pid 22041] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22041] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22041] write(4, "78", 2)           = 2
[pid 22041] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22041] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22041] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22041] exit_group(0)               = ?
[pid 22041] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22041, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22042 attached
, child_tidptr=0x555555af35d0) = 22042
[pid 22042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22042] setpgid(0, 0)               = 0
[pid 22042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22042] write(3, "1000", 4)         = 4
[pid 22042] close(3)                    = 0
[pid 22042] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22042] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22042] write(4, "78", 2)           = 2
[pid 22042] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22042] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22042] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22042] exit_group(0)               = ?
[pid 22042] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22042, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22043 attached
, child_tidptr=0x555555af35d0) = 22043
[pid 22043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22043] setpgid(0, 0)               = 0
[pid 22043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22043] write(3, "1000", 4)         = 4
[pid 22043] close(3)                    = 0
[pid 22043] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22043] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22043] write(4, "78", 2)           = 2
[pid 22043] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22043] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22043] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22043] exit_group(0)               = ?
[pid 22043] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22043, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22044 attached
, child_tidptr=0x555555af35d0) = 22044
[pid 22044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22044] setpgid(0, 0)               = 0
[pid 22044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22044] write(3, "1000", 4)         = 4
[pid 22044] close(3)                    = 0
[pid 22044] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22044] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22044] write(4, "78", 2)           = 2
[pid 22044] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22044] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22044] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22044] exit_group(0)               = ?
[pid 22044] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22044, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22045 attached
, child_tidptr=0x555555af35d0) = 22045
[pid 22045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22045] setpgid(0, 0)               = 0
[pid 22045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22045] write(3, "1000", 4)         = 4
[pid 22045] close(3)                    = 0
[pid 22045] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22045] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22045] write(4, "78", 2)           = 2
[pid 22045] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22045] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22045] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22045] exit_group(0)               = ?
[pid 22045] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22045, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22046 attached
, child_tidptr=0x555555af35d0) = 22046
[pid 22046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22046] setpgid(0, 0)               = 0
[pid 22046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22046] write(3, "1000", 4)         = 4
[pid 22046] close(3)                    = 0
[pid 22046] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22046] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22046] write(4, "78", 2)           = 2
[pid 22046] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22046] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22046] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22046] exit_group(0)               = ?
[pid 22046] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22046, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22047 attached
, child_tidptr=0x555555af35d0) = 22047
[pid 22047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22047] setpgid(0, 0)               = 0
[pid 22047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22047] write(3, "1000", 4)         = 4
[pid 22047] close(3)                    = 0
[pid 22047] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22047] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22047] write(4, "78", 2)           = 2
[pid 22047] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22047] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22047] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22047] exit_group(0)               = ?
[pid 22047] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22047, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22048 attached
, child_tidptr=0x555555af35d0) = 22048
[pid 22048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22048] setpgid(0, 0)               = 0
[pid 22048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22048] write(3, "1000", 4)         = 4
[pid 22048] close(3)                    = 0
[pid 22048] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22048] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22048] write(4, "78", 2)           = 2
[pid 22048] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22048] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22048] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22048] exit_group(0)               = ?
[pid 22048] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22048, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22049 attached
, child_tidptr=0x555555af35d0) = 22049
[pid 22049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22049] setpgid(0, 0)               = 0
[pid 22049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22049] write(3, "1000", 4)         = 4
[pid 22049] close(3)                    = 0
[pid 22049] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22049] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22049] write(4, "78", 2)           = 2
[pid 22049] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22049] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22049] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22049] exit_group(0)               = ?
[pid 22049] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22049, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22050 attached
, child_tidptr=0x555555af35d0) = 22050
[pid 22050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22050] setpgid(0, 0)               = 0
[pid 22050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22050] write(3, "1000", 4)         = 4
[pid 22050] close(3)                    = 0
[pid 22050] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22050] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22050] write(4, "78", 2)           = 2
[pid 22050] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22050] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22050] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22050] exit_group(0)               = ?
[pid 22050] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22050, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22051 attached
, child_tidptr=0x555555af35d0) = 22051
[pid 22051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22051] setpgid(0, 0)               = 0
[pid 22051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22051] write(3, "1000", 4)         = 4
[pid 22051] close(3)                    = 0
[pid 22051] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22051] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22051] write(4, "78", 2)           = 2
[pid 22051] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22051] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22051] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22051] exit_group(0)               = ?
[pid 22051] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22051, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22052 attached
, child_tidptr=0x555555af35d0) = 22052
[pid 22052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22052] setpgid(0, 0)               = 0
[pid 22052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22052] write(3, "1000", 4)         = 4
[pid 22052] close(3)                    = 0
[pid 22052] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22052] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22052] write(4, "78", 2)           = 2
[pid 22052] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22052] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22052] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22052] exit_group(0)               = ?
[pid 22052] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22052, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22053 attached
, child_tidptr=0x555555af35d0) = 22053
[pid 22053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22053] setpgid(0, 0)               = 0
[pid 22053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22053] write(3, "1000", 4)         = 4
[pid 22053] close(3)                    = 0
[pid 22053] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22053] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22053] write(4, "78", 2)           = 2
[pid 22053] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22053] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22053] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22053] exit_group(0)               = ?
[pid 22053] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22053, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22054 attached
, child_tidptr=0x555555af35d0) = 22054
[pid 22054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22054] setpgid(0, 0)               = 0
[pid 22054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22054] write(3, "1000", 4)         = 4
[pid 22054] close(3)                    = 0
[pid 22054] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22054] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22054] write(4, "78", 2)           = 2
[pid 22054] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22054] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22054] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22054] exit_group(0)               = ?
[pid 22054] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22054, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22055 attached
, child_tidptr=0x555555af35d0) = 22055
[pid 22055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22055] setpgid(0, 0)               = 0
[pid 22055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22055] write(3, "1000", 4)         = 4
[pid 22055] close(3)                    = 0
[pid 22055] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22055] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22055] write(4, "78", 2)           = 2
[pid 22055] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22055] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22055] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22055] exit_group(0)               = ?
[pid 22055] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22055, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22056 attached
, child_tidptr=0x555555af35d0) = 22056
[pid 22056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22056] setpgid(0, 0)               = 0
[pid 22056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22056] write(3, "1000", 4)         = 4
[pid 22056] close(3)                    = 0
[pid 22056] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22056] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22056] write(4, "78", 2)           = 2
[pid 22056] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22056] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22056] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22056] exit_group(0)               = ?
[pid 22056] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22056, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22057 attached
, child_tidptr=0x555555af35d0) = 22057
[pid 22057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22057] setpgid(0, 0)               = 0
[pid 22057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22057] write(3, "1000", 4)         = 4
[pid 22057] close(3)                    = 0
[pid 22057] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22057] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22057] write(4, "78", 2)           = 2
[pid 22057] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22057] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22057] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22057] exit_group(0)               = ?
[pid 22057] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22057, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22058
./strace-static-x86_64: Process 22058 attached
[pid 22058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22058] setpgid(0, 0)               = 0
[pid 22058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22058] write(3, "1000", 4)         = 4
[pid 22058] close(3)                    = 0
[pid 22058] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22058] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22058] write(4, "78", 2)           = 2
[pid 22058] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22058] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22058] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22058] exit_group(0)               = ?
[pid 22058] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22058, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22059 attached
, child_tidptr=0x555555af35d0) = 22059
[pid 22059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22059] setpgid(0, 0)               = 0
[pid 22059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22059] write(3, "1000", 4)         = 4
[pid 22059] close(3)                    = 0
[pid 22059] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22059] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22059] write(4, "78", 2)           = 2
[pid 22059] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22059] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22059] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22059] exit_group(0)               = ?
[pid 22059] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22059, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22060 attached
, child_tidptr=0x555555af35d0) = 22060
[pid 22060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22060] setpgid(0, 0)               = 0
[pid 22060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22060] write(3, "1000", 4)         = 4
[pid 22060] close(3)                    = 0
[pid 22060] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22060] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22060] write(4, "78", 2)           = 2
[pid 22060] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22060] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22060] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22060] exit_group(0)               = ?
[pid 22060] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22060, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22061 attached
, child_tidptr=0x555555af35d0) = 22061
[pid 22061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22061] setpgid(0, 0)               = 0
[pid 22061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22061] write(3, "1000", 4)         = 4
[pid 22061] close(3)                    = 0
[pid 22061] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22061] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22061] write(4, "78", 2)           = 2
[pid 22061] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22061] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22061] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22061] exit_group(0)               = ?
[pid 22061] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22061, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22062 attached
, child_tidptr=0x555555af35d0) = 22062
[pid 22062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22062] setpgid(0, 0)               = 0
[pid 22062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22062] write(3, "1000", 4)         = 4
[pid 22062] close(3)                    = 0
[pid 22062] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22062] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22062] write(4, "78", 2)           = 2
[pid 22062] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22062] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22062] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22062] exit_group(0)               = ?
[pid 22062] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22062, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22063 attached
, child_tidptr=0x555555af35d0) = 22063
[pid 22063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22063] setpgid(0, 0)               = 0
[pid 22063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22063] write(3, "1000", 4)         = 4
[pid 22063] close(3)                    = 0
[pid 22063] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22063] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22063] write(4, "78", 2)           = 2
[pid 22063] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22063] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22063] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22063] exit_group(0)               = ?
[pid 22063] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22063, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22064 attached
, child_tidptr=0x555555af35d0) = 22064
[pid 22064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22064] setpgid(0, 0)               = 0
[pid 22064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22064] write(3, "1000", 4)         = 4
[pid 22064] close(3)                    = 0
[pid 22064] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22064] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22064] write(4, "78", 2)           = 2
[pid 22064] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22064] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22064] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22064] exit_group(0)               = ?
[pid 22064] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22064, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22065 attached
, child_tidptr=0x555555af35d0) = 22065
[pid 22065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22065] setpgid(0, 0)               = 0
[pid 22065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22065] write(3, "1000", 4)         = 4
[pid 22065] close(3)                    = 0
[pid 22065] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22065] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22065] write(4, "78", 2)           = 2
[pid 22065] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22065] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22065] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22065] exit_group(0)               = ?
[pid 22065] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22065, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22066 attached
, child_tidptr=0x555555af35d0) = 22066
[pid 22066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22066] setpgid(0, 0)               = 0
[pid 22066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22066] write(3, "1000", 4)         = 4
[pid 22066] close(3)                    = 0
[pid 22066] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22066] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22066] write(4, "78", 2)           = 2
[pid 22066] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22066] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22066] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22066] exit_group(0)               = ?
[pid 22066] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22066, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22067
./strace-static-x86_64: Process 22067 attached
[pid 22067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22067] setpgid(0, 0)               = 0
[pid 22067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22067] write(3, "1000", 4)         = 4
[pid 22067] close(3)                    = 0
[pid 22067] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22067] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22067] write(4, "78", 2)           = 2
[pid 22067] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22067] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22067] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22067] exit_group(0)               = ?
[pid 22067] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22067, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22068 attached
, child_tidptr=0x555555af35d0) = 22068
[pid 22068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22068] setpgid(0, 0)               = 0
[pid 22068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22068] write(3, "1000", 4)         = 4
[pid 22068] close(3)                    = 0
[pid 22068] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22068] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22068] write(4, "78", 2)           = 2
[pid 22068] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22068] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22068] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22068] exit_group(0)               = ?
[pid 22068] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22068, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22069 attached
, child_tidptr=0x555555af35d0) = 22069
[pid 22069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22069] setpgid(0, 0)               = 0
[pid 22069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22069] write(3, "1000", 4)         = 4
[pid 22069] close(3)                    = 0
[pid 22069] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22069] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22069] write(4, "78", 2)           = 2
[pid 22069] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22069] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22069] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22069] exit_group(0)               = ?
[pid 22069] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22069, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22070 attached
, child_tidptr=0x555555af35d0) = 22070
[pid 22070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22070] setpgid(0, 0)               = 0
[pid 22070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22070] write(3, "1000", 4)         = 4
[pid 22070] close(3)                    = 0
[pid 22070] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22070] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22070] write(4, "78", 2)           = 2
[pid 22070] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22070] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22070] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22070] exit_group(0)               = ?
[pid 22070] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22070, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22071 attached
, child_tidptr=0x555555af35d0) = 22071
[pid 22071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22071] setpgid(0, 0)               = 0
[pid 22071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22071] write(3, "1000", 4)         = 4
[pid 22071] close(3)                    = 0
[pid 22071] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22071] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22071] write(4, "78", 2)           = 2
[pid 22071] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22071] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22071] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22071] exit_group(0)               = ?
[pid 22071] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22071, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22072 attached
, child_tidptr=0x555555af35d0) = 22072
[pid 22072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22072] setpgid(0, 0)               = 0
[pid 22072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22072] write(3, "1000", 4)         = 4
[pid 22072] close(3)                    = 0
[pid 22072] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22072] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22072] write(4, "78", 2)           = 2
[pid 22072] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22072] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22072] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22072] exit_group(0)               = ?
[pid 22072] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22072, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22073 attached
, child_tidptr=0x555555af35d0) = 22073
[pid 22073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22073] setpgid(0, 0)               = 0
[pid 22073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22073] write(3, "1000", 4)         = 4
[pid 22073] close(3)                    = 0
[pid 22073] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22073] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22073] write(4, "78", 2)           = 2
[pid 22073] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22073] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22073] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22073] exit_group(0)               = ?
[pid 22073] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22073, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22074 attached
, child_tidptr=0x555555af35d0) = 22074
[pid 22074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22074] setpgid(0, 0)               = 0
[pid 22074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22074] write(3, "1000", 4)         = 4
[pid 22074] close(3)                    = 0
[pid 22074] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22074] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22074] write(4, "78", 2)           = 2
[pid 22074] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22074] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22074] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22074] exit_group(0)               = ?
[pid 22074] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22074, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22075 attached
, child_tidptr=0x555555af35d0) = 22075
[pid 22075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22075] setpgid(0, 0)               = 0
[pid 22075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22075] write(3, "1000", 4)         = 4
[pid 22075] close(3)                    = 0
[pid 22075] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22075] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22075] write(4, "78", 2)           = 2
[pid 22075] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22075] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22075] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22075] exit_group(0)               = ?
[pid 22075] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22075, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22076 attached
, child_tidptr=0x555555af35d0) = 22076
[pid 22076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22076] setpgid(0, 0)               = 0
[pid 22076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22076] write(3, "1000", 4)         = 4
[pid 22076] close(3)                    = 0
[pid 22076] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22076] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22076] write(4, "78", 2)           = 2
[pid 22076] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22076] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22076] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22076] exit_group(0)               = ?
[pid 22076] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22076, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22077 attached
, child_tidptr=0x555555af35d0) = 22077
[pid 22077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22077] setpgid(0, 0)               = 0
[pid 22077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22077] write(3, "1000", 4)         = 4
[pid 22077] close(3)                    = 0
[pid 22077] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22077] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22077] write(4, "78", 2)           = 2
[pid 22077] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22077] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22077] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22077] exit_group(0)               = ?
[pid 22077] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22077, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22078 attached
, child_tidptr=0x555555af35d0) = 22078
[pid 22078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22078] setpgid(0, 0)               = 0
[pid 22078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22078] write(3, "1000", 4)         = 4
[pid 22078] close(3)                    = 0
[pid 22078] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22078] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22078] write(4, "78", 2)           = 2
[pid 22078] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22078] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22078] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22078] exit_group(0)               = ?
[pid 22078] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22078, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22079
./strace-static-x86_64: Process 22079 attached
[pid 22079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22079] setpgid(0, 0)               = 0
[pid 22079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22079] write(3, "1000", 4)         = 4
[pid 22079] close(3)                    = 0
[pid 22079] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22079] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22079] write(4, "78", 2)           = 2
[pid 22079] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22079] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22079] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22079] exit_group(0)               = ?
[pid 22079] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22079, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22080 attached
, child_tidptr=0x555555af35d0) = 22080
[pid 22080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22080] setpgid(0, 0)               = 0
[pid 22080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22080] write(3, "1000", 4)         = 4
[pid 22080] close(3)                    = 0
[pid 22080] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22080] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22080] write(4, "78", 2)           = 2
[pid 22080] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22080] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22080] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22080] exit_group(0)               = ?
[pid 22080] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22080, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22081 attached
, child_tidptr=0x555555af35d0) = 22081
[pid 22081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22081] setpgid(0, 0)               = 0
[pid 22081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22081] write(3, "1000", 4)         = 4
[pid 22081] close(3)                    = 0
[pid 22081] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22081] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22081] write(4, "78", 2)           = 2
[pid 22081] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22081] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22081] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22081] exit_group(0)               = ?
[pid 22081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22081, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22082 attached
, child_tidptr=0x555555af35d0) = 22082
[pid 22082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22082] setpgid(0, 0)               = 0
[pid 22082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22082] write(3, "1000", 4)         = 4
[pid 22082] close(3)                    = 0
[pid 22082] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22082] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22082] write(4, "78", 2)           = 2
[pid 22082] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22082] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22082] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22082] exit_group(0)               = ?
[pid 22082] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22082, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22083 attached
, child_tidptr=0x555555af35d0) = 22083
[pid 22083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22083] setpgid(0, 0)               = 0
[pid 22083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22083] write(3, "1000", 4)         = 4
[pid 22083] close(3)                    = 0
[pid 22083] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22083] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22083] write(4, "78", 2)           = 2
[pid 22083] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22083] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22083] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22083] exit_group(0)               = ?
[pid 22083] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22083, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22084 attached
, child_tidptr=0x555555af35d0) = 22084
[pid 22084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22084] setpgid(0, 0)               = 0
[pid 22084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22084] write(3, "1000", 4)         = 4
[pid 22084] close(3)                    = 0
[pid 22084] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22084] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22084] write(4, "78", 2)           = 2
[pid 22084] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22084] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22084] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22084] exit_group(0)               = ?
[pid 22084] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22084, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22085
./strace-static-x86_64: Process 22085 attached
[pid 22085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22085] setpgid(0, 0)               = 0
[pid 22085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22085] write(3, "1000", 4)         = 4
[pid 22085] close(3)                    = 0
[pid 22085] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22085] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22085] write(4, "78", 2)           = 2
[pid 22085] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22085] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22085] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22085] exit_group(0)               = ?
[pid 22085] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22085, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22086 attached
, child_tidptr=0x555555af35d0) = 22086
[pid 22086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22086] setpgid(0, 0)               = 0
[pid 22086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22086] write(3, "1000", 4)         = 4
[pid 22086] close(3)                    = 0
[pid 22086] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22086] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22086] write(4, "78", 2)           = 2
[pid 22086] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22086] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22086] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22086] exit_group(0)               = ?
[pid 22086] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22086, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22087 attached
, child_tidptr=0x555555af35d0) = 22087
[pid 22087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22087] setpgid(0, 0)               = 0
[pid 22087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22087] write(3, "1000", 4)         = 4
[pid 22087] close(3)                    = 0
[pid 22087] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22087] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22087] write(4, "78", 2)           = 2
[pid 22087] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22087] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22087] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22087] exit_group(0)               = ?
[pid 22087] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22087, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22088 attached
, child_tidptr=0x555555af35d0) = 22088
[pid 22088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22088] setpgid(0, 0)               = 0
[pid 22088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22088] write(3, "1000", 4)         = 4
[pid 22088] close(3)                    = 0
[pid 22088] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22088] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22088] write(4, "78", 2)           = 2
[pid 22088] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22088] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22088] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22088] exit_group(0)               = ?
[pid 22088] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22088, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22089
./strace-static-x86_64: Process 22089 attached
[pid 22089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22089] setpgid(0, 0)               = 0
[pid 22089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22089] write(3, "1000", 4)         = 4
[pid 22089] close(3)                    = 0
[pid 22089] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22089] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22089] write(4, "78", 2)           = 2
[pid 22089] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22089] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22089] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22089] exit_group(0)               = ?
[pid 22089] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22089, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22090 attached
, child_tidptr=0x555555af35d0) = 22090
[pid 22090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22090] setpgid(0, 0)               = 0
[pid 22090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22090] write(3, "1000", 4)         = 4
[pid 22090] close(3)                    = 0
[pid 22090] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22090] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22090] write(4, "78", 2)           = 2
[pid 22090] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22090] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22090] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22090] exit_group(0)               = ?
[pid 22090] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22090, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22091 attached
, child_tidptr=0x555555af35d0) = 22091
[pid 22091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22091] setpgid(0, 0)               = 0
[pid 22091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22091] write(3, "1000", 4)         = 4
[pid 22091] close(3)                    = 0
[pid 22091] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22091] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22091] write(4, "78", 2)           = 2
[pid 22091] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22091] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22091] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22091] exit_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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22092 attached
, child_tidptr=0x555555af35d0) = 22092
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22092] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22092] write(4, "78", 2)           = 2
[pid 22092] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22092] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22092] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22093 attached
, child_tidptr=0x555555af35d0) = 22093
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22093] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22093] write(4, "78", 2)           = 2
[pid 22093] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22093] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22093] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22094 attached
, child_tidptr=0x555555af35d0) = 22094
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22094] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22094] write(4, "78", 2)           = 2
[pid 22094] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22094] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22094] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22095 attached
, child_tidptr=0x555555af35d0) = 22095
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22095] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22095] write(4, "78", 2)           = 2
[pid 22095] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22095] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22095] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22096 attached
, child_tidptr=0x555555af35d0) = 22096
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22096] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22096] write(4, "78", 2)           = 2
[pid 22096] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22096] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22096] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22097 attached
, child_tidptr=0x555555af35d0) = 22097
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22097] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22097] write(4, "78", 2)           = 2
[pid 22097] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22097] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22097] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22098 attached
, child_tidptr=0x555555af35d0) = 22098
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22098] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22098] write(4, "78", 2)           = 2
[pid 22098] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22098] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22098] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22099 attached
, child_tidptr=0x555555af35d0) = 22099
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22099] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22099] write(4, "78", 2)           = 2
[pid 22099] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22099] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22099] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22100 attached
, child_tidptr=0x555555af35d0) = 22100
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22100] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22100] write(4, "78", 2)           = 2
[pid 22100] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22100] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22100] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22101
./strace-static-x86_64: Process 22101 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22101] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22101] write(4, "78", 2)           = 2
[pid 22101] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22101] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22101] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22102 attached
, child_tidptr=0x555555af35d0) = 22102
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22102] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22102] write(4, "78", 2)           = 2
[pid 22102] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22102] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22102] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22103 attached
, child_tidptr=0x555555af35d0) = 22103
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22103] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22103] write(4, "78", 2)           = 2
[pid 22103] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22103] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22103] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22104
./strace-static-x86_64: Process 22104 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22104] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22104] write(4, "78", 2)           = 2
[pid 22104] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22104] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22104] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22105 attached
, child_tidptr=0x555555af35d0) = 22105
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22105] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22105] write(4, "78", 2)           = 2
[pid 22105] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22105] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22105] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22106
./strace-static-x86_64: Process 22106 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22106] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22106] write(4, "78", 2)           = 2
[pid 22106] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22106] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22106] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22107 attached
, child_tidptr=0x555555af35d0) = 22107
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22107] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22107] write(4, "78", 2)           = 2
[pid 22107] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22107] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22107] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22108 attached
, child_tidptr=0x555555af35d0) = 22108
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22108] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22108] write(4, "78", 2)           = 2
[pid 22108] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22108] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22108] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22109
./strace-static-x86_64: Process 22109 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22109] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22109] write(4, "78", 2)           = 2
[pid 22109] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22109] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22109] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22110 attached
, child_tidptr=0x555555af35d0) = 22110
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22110] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22110] write(4, "78", 2)           = 2
[pid 22110] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22110] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22110] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22111 attached
, child_tidptr=0x555555af35d0) = 22111
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22111] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22111] write(4, "78", 2)           = 2
[pid 22111] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22111] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22111] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22112 attached
, child_tidptr=0x555555af35d0) = 22112
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22112] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22112] write(4, "78", 2)           = 2
[pid 22112] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22112] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22112] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22113 attached
, child_tidptr=0x555555af35d0) = 22113
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22113] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22113] write(4, "78", 2)           = 2
[pid 22113] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22113] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22113] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22114 attached
, child_tidptr=0x555555af35d0) = 22114
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22114] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22114] write(4, "78", 2)           = 2
[pid 22114] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22114] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22114] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22115 attached
, child_tidptr=0x555555af35d0) = 22115
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22115] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22115] write(4, "78", 2)           = 2
[pid 22115] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22115] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22115] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22116 attached
, child_tidptr=0x555555af35d0) = 22116
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22116] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22116] write(4, "78", 2)           = 2
[pid 22116] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22116] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22116] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22117 attached
, child_tidptr=0x555555af35d0) = 22117
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22117] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22117] write(4, "78", 2)           = 2
[pid 22117] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22117] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22117] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22118 attached
, child_tidptr=0x555555af35d0) = 22118
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22118] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22118] write(4, "78", 2)           = 2
[pid 22118] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22118] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22118] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22119 attached
, child_tidptr=0x555555af35d0) = 22119
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22119] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22119] write(4, "78", 2)           = 2
[pid 22119] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22119] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22119] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22120 attached
, child_tidptr=0x555555af35d0) = 22120
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22120] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22120] write(4, "78", 2)           = 2
[pid 22120] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22120] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22120] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22121 attached
, child_tidptr=0x555555af35d0) = 22121
[pid 22121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22121] setpgid(0, 0)               = 0
[pid 22121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22121] write(3, "1000", 4)         = 4
[pid 22121] close(3)                    = 0
[pid 22121] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22121] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22121] write(4, "78", 2)           = 2
[pid 22121] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22121] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22121] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22121] exit_group(0)               = ?
[pid 22121] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22121, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22122 attached
, child_tidptr=0x555555af35d0) = 22122
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22122] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22122] write(4, "78", 2)           = 2
[pid 22122] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22122] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22122] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22123 attached
, child_tidptr=0x555555af35d0) = 22123
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22123] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22123] write(4, "78", 2)           = 2
[pid 22123] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22123] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22123] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22124 attached
, child_tidptr=0x555555af35d0) = 22124
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22124] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22124] write(4, "78", 2)           = 2
[pid 22124] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22124] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22124] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22125
./strace-static-x86_64: Process 22125 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22125] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22125] write(4, "78", 2)           = 2
[pid 22125] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22125] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22125] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22126 attached
, child_tidptr=0x555555af35d0) = 22126
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22126] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22126] write(4, "78", 2)           = 2
[pid 22126] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22126] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22126] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22127 attached
, child_tidptr=0x555555af35d0) = 22127
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22127] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22127] write(4, "78", 2)           = 2
[pid 22127] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22127] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22127] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22128 attached
, child_tidptr=0x555555af35d0) = 22128
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22128] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22128] write(4, "78", 2)           = 2
[pid 22128] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22128] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22128] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22129 attached
, child_tidptr=0x555555af35d0) = 22129
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22129] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22129] write(4, "78", 2)           = 2
[pid 22129] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22129] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22129] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22130 attached
, child_tidptr=0x555555af35d0) = 22130
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22130] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22130] write(4, "78", 2)           = 2
[pid 22130] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22130] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22130] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22131 attached
, child_tidptr=0x555555af35d0) = 22131
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22131] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22131] write(4, "78", 2)           = 2
[pid 22131] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22131] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22131] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22132 attached
, child_tidptr=0x555555af35d0) = 22132
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22132] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22132] write(4, "78", 2)           = 2
[pid 22132] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22132] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22132] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22133 attached
, child_tidptr=0x555555af35d0) = 22133
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22133] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22133] write(4, "78", 2)           = 2
[pid 22133] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22133] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22133] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22134 attached
, child_tidptr=0x555555af35d0) = 22134
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22134] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22134] write(4, "78", 2)           = 2
[pid 22134] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22134] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22134] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22135 attached
, child_tidptr=0x555555af35d0) = 22135
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22135] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22135] write(4, "78", 2)           = 2
[pid 22135] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22135] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22135] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22136 attached
, child_tidptr=0x555555af35d0) = 22136
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22136] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22136] write(4, "78", 2)           = 2
[pid 22136] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22136] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22136] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22137 attached
, child_tidptr=0x555555af35d0) = 22137
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22137] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22137] write(4, "78", 2)           = 2
[pid 22137] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22137] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22137] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22138 attached
, child_tidptr=0x555555af35d0) = 22138
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22138] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22138] write(4, "78", 2)           = 2
[pid 22138] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22138] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22138] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22139 attached
, child_tidptr=0x555555af35d0) = 22139
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22139] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22139] write(4, "78", 2)           = 2
[pid 22139] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22139] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22139] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22140 attached
, child_tidptr=0x555555af35d0) = 22140
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22140] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22140] write(4, "78", 2)           = 2
[pid 22140] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22140] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22140] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22141 attached
, child_tidptr=0x555555af35d0) = 22141
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22141] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22141] write(4, "78", 2)           = 2
[pid 22141] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22141] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22141] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22142 attached
, child_tidptr=0x555555af35d0) = 22142
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22142] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22142] write(4, "78", 2)           = 2
[pid 22142] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22142] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22142] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22143 attached
, child_tidptr=0x555555af35d0) = 22143
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22143] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22143] write(4, "78", 2)           = 2
[pid 22143] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22143] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22143] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22144 attached
, child_tidptr=0x555555af35d0) = 22144
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22144] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22144] write(4, "78", 2)           = 2
[pid 22144] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22144] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22144] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22145 attached
, child_tidptr=0x555555af35d0) = 22145
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22145] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22145] write(4, "78", 2)           = 2
[pid 22145] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22145] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22145] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22146 attached
, child_tidptr=0x555555af35d0) = 22146
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22146] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22146] write(4, "78", 2)           = 2
[pid 22146] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22146] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22146] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22147 attached
, child_tidptr=0x555555af35d0) = 22147
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22147] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22147] write(4, "78", 2)           = 2
[pid 22147] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22147] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22147] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22148 attached
, child_tidptr=0x555555af35d0) = 22148
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22148] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22148] write(4, "78", 2)           = 2
[pid 22148] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22148] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22148] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22149 attached
, child_tidptr=0x555555af35d0) = 22149
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22149] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22149] write(4, "78", 2)           = 2
[pid 22149] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22149] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22149] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22150 attached
, child_tidptr=0x555555af35d0) = 22150
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22150] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22150] write(4, "78", 2)           = 2
[pid 22150] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22150] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22150] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22151
./strace-static-x86_64: Process 22151 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22151] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22151] write(4, "78", 2)           = 2
[pid 22151] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22151] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22151] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22152 attached
, child_tidptr=0x555555af35d0) = 22152
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22152] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22152] write(4, "78", 2)           = 2
[pid 22152] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22152] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22152] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22153 attached
, child_tidptr=0x555555af35d0) = 22153
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22153] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22153] write(4, "78", 2)           = 2
[pid 22153] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22153] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22153] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22154 attached
, child_tidptr=0x555555af35d0) = 22154
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22154] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22154] write(4, "78", 2)           = 2
[pid 22154] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22154] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22154] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22155 attached
, child_tidptr=0x555555af35d0) = 22155
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22155] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22155] write(4, "78", 2)           = 2
[pid 22155] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22155] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22155] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22156 attached
, child_tidptr=0x555555af35d0) = 22156
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22156] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22156] write(4, "78", 2)           = 2
[pid 22156] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22156] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22156] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22157 attached
, child_tidptr=0x555555af35d0) = 22157
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22157] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22157] write(4, "78", 2)           = 2
[pid 22157] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22157] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22157] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22158 attached
, child_tidptr=0x555555af35d0) = 22158
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22158] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22158] write(4, "78", 2)           = 2
[pid 22158] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22158] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22158] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22159
./strace-static-x86_64: Process 22159 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22159] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22159] write(4, "78", 2)           = 2
[pid 22159] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22159] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22159] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22160 attached
, child_tidptr=0x555555af35d0) = 22160
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22160] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22160] write(4, "78", 2)           = 2
[pid 22160] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22160] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22160] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22161 attached
, child_tidptr=0x555555af35d0) = 22161
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22161] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22161] write(4, "78", 2)           = 2
[pid 22161] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22161] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22161] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22162
./strace-static-x86_64: Process 22162 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22162] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22162] write(4, "78", 2)           = 2
[pid 22162] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22162] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22162] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22163 attached
, child_tidptr=0x555555af35d0) = 22163
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22163] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22163] write(4, "78", 2)           = 2
[pid 22163] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22163] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22163] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22164 attached
, child_tidptr=0x555555af35d0) = 22164
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22164] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22164] write(4, "78", 2)           = 2
[pid 22164] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22164] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22164] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22165 attached
, child_tidptr=0x555555af35d0) = 22165
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22165] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22165] write(4, "78", 2)           = 2
[pid 22165] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22165] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22165] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22166 attached
, child_tidptr=0x555555af35d0) = 22166
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22166] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22166] write(4, "78", 2)           = 2
[pid 22166] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22166] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22166] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22167 attached
, child_tidptr=0x555555af35d0) = 22167
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22167] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22167] write(4, "78", 2)           = 2
[pid 22167] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22167] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22167] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22168 attached
, child_tidptr=0x555555af35d0) = 22168
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22168] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22168] write(4, "78", 2)           = 2
[pid 22168] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22168] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22168] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22169 attached
, child_tidptr=0x555555af35d0) = 22169
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22169] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22169] write(4, "78", 2)           = 2
[pid 22169] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22169] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22169] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22170 attached
, child_tidptr=0x555555af35d0) = 22170
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22170] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22170] write(4, "78", 2)           = 2
[pid 22170] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22170] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22170] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22171 attached
, child_tidptr=0x555555af35d0) = 22171
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22171] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22171] write(4, "78", 2)           = 2
[pid 22171] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22171] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22171] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22172 attached
, child_tidptr=0x555555af35d0) = 22172
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22172] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22172] write(4, "78", 2)           = 2
[pid 22172] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22172] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22172] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22173 attached
, child_tidptr=0x555555af35d0) = 22173
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22173] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22173] write(4, "78", 2)           = 2
[pid 22173] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22173] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22173] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22174 attached
, child_tidptr=0x555555af35d0) = 22174
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22174] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22174] write(4, "78", 2)           = 2
[pid 22174] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22174] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22174] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22175 attached
, child_tidptr=0x555555af35d0) = 22175
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22175] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22175] write(4, "78", 2)           = 2
[pid 22175] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22175] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22175] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22176 attached
, child_tidptr=0x555555af35d0) = 22176
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22176] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22176] write(4, "78", 2)           = 2
[pid 22176] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22176] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22176] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22177 attached
, child_tidptr=0x555555af35d0) = 22177
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22177] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22177] write(4, "78", 2)           = 2
[pid 22177] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22177] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22177] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22178 attached
, child_tidptr=0x555555af35d0) = 22178
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22178] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22178] write(4, "78", 2)           = 2
[pid 22178] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22178] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22178] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22179 attached
, child_tidptr=0x555555af35d0) = 22179
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22179] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22179] write(4, "78", 2)           = 2
[pid 22179] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22179] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22179] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22180 attached
, child_tidptr=0x555555af35d0) = 22180
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22180] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22180] write(4, "78", 2)           = 2
[pid 22180] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22180] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22180] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22181 attached
, child_tidptr=0x555555af35d0) = 22181
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22181] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22181] write(4, "78", 2)           = 2
[pid 22181] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22181] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22181] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22182 attached
, child_tidptr=0x555555af35d0) = 22182
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22182] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22182] write(4, "78", 2)           = 2
[pid 22182] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22182] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22182] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22183 attached
, child_tidptr=0x555555af35d0) = 22183
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22183] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22183] write(4, "78", 2)           = 2
[pid 22183] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22183] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22183] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22184 attached
, child_tidptr=0x555555af35d0) = 22184
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22184] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22184] write(4, "78", 2)           = 2
[pid 22184] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22184] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22184] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22185 attached
, child_tidptr=0x555555af35d0) = 22185
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22185] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22185] write(4, "78", 2)           = 2
[pid 22185] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22185] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22185] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22186
./strace-static-x86_64: Process 22186 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22186] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22186] write(4, "78", 2)           = 2
[pid 22186] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22186] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22186] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22187 attached
, child_tidptr=0x555555af35d0) = 22187
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22187] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22187] write(4, "78", 2)           = 2
[pid 22187] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22187] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22187] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22188 attached
, child_tidptr=0x555555af35d0) = 22188
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22188] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22188] write(4, "78", 2)           = 2
[pid 22188] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22188] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22188] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22189 attached
, child_tidptr=0x555555af35d0) = 22189
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22189] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22189] write(4, "78", 2)           = 2
[pid 22189] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22189] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22189] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22190
./strace-static-x86_64: Process 22190 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22190] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22190] write(4, "78", 2)           = 2
[pid 22190] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22190] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22190] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22191 attached
, child_tidptr=0x555555af35d0) = 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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22191] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22191] write(4, "78", 2)           = 2
[pid 22191] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22191] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22191] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22192 attached
, child_tidptr=0x555555af35d0) = 22192
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22192] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22192] write(4, "78", 2)           = 2
[pid 22192] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22192] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22192] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22193
./strace-static-x86_64: Process 22193 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22193] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22193] write(4, "78", 2)           = 2
[pid 22193] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22193] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22193] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22194 attached
, child_tidptr=0x555555af35d0) = 22194
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22194] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22194] write(4, "78", 2)           = 2
[pid 22194] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22194] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22194] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22195
./strace-static-x86_64: Process 22195 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22195] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22195] write(4, "78", 2)           = 2
[pid 22195] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22195] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22195] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22196 attached
, child_tidptr=0x555555af35d0) = 22196
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22196] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22196] write(4, "78", 2)           = 2
[pid 22196] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22196] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22196] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22197 attached
, child_tidptr=0x555555af35d0) = 22197
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22197] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22197] write(4, "78", 2)           = 2
[pid 22197] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22197] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22197] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22198 attached
, child_tidptr=0x555555af35d0) = 22198
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22198] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22198] write(4, "78", 2)           = 2
[pid 22198] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22198] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22198] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22199 attached
, child_tidptr=0x555555af35d0) = 22199
[pid 22199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22199] setpgid(0, 0)               = 0
[pid 22199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22199] write(3, "1000", 4)         = 4
[pid 22199] close(3)                    = 0
[pid 22199] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22199] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22199] write(4, "78", 2)           = 2
[pid 22199] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22199] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22199] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22199] exit_group(0)               = ?
[pid 22199] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22199, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22200 attached
, child_tidptr=0x555555af35d0) = 22200
[pid 22200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22200] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22200] write(4, "78", 2)           = 2
[pid 22200] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22200] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22200] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22201 attached
, child_tidptr=0x555555af35d0) = 22201
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22201] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22201] write(4, "78", 2)           = 2
[pid 22201] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22201] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22201] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22202 attached
, child_tidptr=0x555555af35d0) = 22202
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22202] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22202] write(4, "78", 2)           = 2
[pid 22202] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22202] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22202] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22203 attached
, child_tidptr=0x555555af35d0) = 22203
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22203] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22203] write(4, "78", 2)           = 2
[pid 22203] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22203] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22203] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22204 attached
, child_tidptr=0x555555af35d0) = 22204
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22204] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22204] write(4, "78", 2)           = 2
[pid 22204] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22204] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22204] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22205 attached
, child_tidptr=0x555555af35d0) = 22205
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22205] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22205] write(4, "78", 2)           = 2
[pid 22205] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22205] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22205] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22206 attached
, child_tidptr=0x555555af35d0) = 22206
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22206] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22206] write(4, "78", 2)           = 2
[pid 22206] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22206] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22206] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22207 attached
, child_tidptr=0x555555af35d0) = 22207
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22207] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22207] write(4, "78", 2)           = 2
[pid 22207] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22207] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22207] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22208 attached
, child_tidptr=0x555555af35d0) = 22208
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22208] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22208] write(4, "78", 2)           = 2
[pid 22208] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22208] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22208] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22209 attached
, child_tidptr=0x555555af35d0) = 22209
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22209] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22209] write(4, "78", 2)           = 2
[pid 22209] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22209] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22209] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22210 attached
, child_tidptr=0x555555af35d0) = 22210
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22210] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22210] write(4, "78", 2)           = 2
[pid 22210] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22210] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22210] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22211
./strace-static-x86_64: Process 22211 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22211] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22211] write(4, "78", 2)           = 2
[pid 22211] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22211] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22211] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22212 attached
, child_tidptr=0x555555af35d0) = 22212
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22212] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22212] write(4, "78", 2)           = 2
[pid 22212] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22212] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22212] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22213 attached
, child_tidptr=0x555555af35d0) = 22213
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22213] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22213] write(4, "78", 2)           = 2
[pid 22213] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22213] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22213] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22214
./strace-static-x86_64: Process 22214 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22214] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22214] write(4, "78", 2)           = 2
[pid 22214] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22214] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22214] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22215 attached
, child_tidptr=0x555555af35d0) = 22215
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22215] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22215] write(4, "78", 2)           = 2
[pid 22215] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22215] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22215] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22216 attached
, child_tidptr=0x555555af35d0) = 22216
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22216] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22216] write(4, "78", 2)           = 2
[pid 22216] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22216] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22216] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22217 attached
, child_tidptr=0x555555af35d0) = 22217
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22217] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22217] write(4, "78", 2)           = 2
[pid 22217] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22217] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22217] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22218 attached
, child_tidptr=0x555555af35d0) = 22218
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22218] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22218] write(4, "78", 2)           = 2
[pid 22218] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22218] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22218] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22219 attached
, child_tidptr=0x555555af35d0) = 22219
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22219] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22219] write(4, "78", 2)           = 2
[pid 22219] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22219] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22219] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22220 attached
, child_tidptr=0x555555af35d0) = 22220
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22220] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22220] write(4, "78", 2)           = 2
[pid 22220] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22220] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22220] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22221 attached
, child_tidptr=0x555555af35d0) = 22221
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22221] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22221] write(4, "78", 2)           = 2
[pid 22221] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22221] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22221] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22222 attached
, child_tidptr=0x555555af35d0) = 22222
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22222] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22222] write(4, "78", 2)           = 2
[pid 22222] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22222] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22222] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22223 attached
, child_tidptr=0x555555af35d0) = 22223
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22223] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22223] write(4, "78", 2)           = 2
[pid 22223] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22223] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22223] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22224 attached
, child_tidptr=0x555555af35d0) = 22224
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22224] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22224] write(4, "78", 2)           = 2
[pid 22224] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22224] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22224] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22225 attached
, child_tidptr=0x555555af35d0) = 22225
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22225] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22225] write(4, "78", 2)           = 2
[pid 22225] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22225] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22225] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22226 attached
, child_tidptr=0x555555af35d0) = 22226
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22226] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22226] write(4, "78", 2)           = 2
[pid 22226] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22226] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22226] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22227 attached
, child_tidptr=0x555555af35d0) = 22227
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22227] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22227] write(4, "78", 2)           = 2
[pid 22227] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22227] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22227] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22228 attached
, child_tidptr=0x555555af35d0) = 22228
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22228] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22228] write(4, "78", 2)           = 2
[pid 22228] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22228] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22228] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22229 attached
, child_tidptr=0x555555af35d0) = 22229
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22229] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22229] write(4, "78", 2)           = 2
[pid 22229] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22229] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22229] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22230 attached
, child_tidptr=0x555555af35d0) = 22230
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22230] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22230] write(4, "78", 2)           = 2
[pid 22230] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22230] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22230] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22231 attached
, child_tidptr=0x555555af35d0) = 22231
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22231] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22231] write(4, "78", 2)           = 2
[pid 22231] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22231] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22231] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22232 attached
, child_tidptr=0x555555af35d0) = 22232
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22232] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22232] write(4, "78", 2)           = 2
[pid 22232] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22232] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22232] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22233 attached
, child_tidptr=0x555555af35d0) = 22233
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22233] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22233] write(4, "78", 2)           = 2
[pid 22233] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22233] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22233] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22234 attached
, child_tidptr=0x555555af35d0) = 22234
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22234] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22234] write(4, "78", 2)           = 2
[pid 22234] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22234] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22234] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22235 attached
, child_tidptr=0x555555af35d0) = 22235
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22235] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22235] write(4, "78", 2)           = 2
[pid 22235] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22235] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22235] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22236
./strace-static-x86_64: Process 22236 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22236] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22236] write(4, "78", 2)           = 2
[pid 22236] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22236] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22236] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22237 attached
, child_tidptr=0x555555af35d0) = 22237
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22237] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22237] write(4, "78", 2)           = 2
[pid 22237] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22237] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22237] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22238
./strace-static-x86_64: Process 22238 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22238] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22238] write(4, "78", 2)           = 2
[pid 22238] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22238] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22238] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22239 attached
, child_tidptr=0x555555af35d0) = 22239
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22239] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22239] write(4, "78", 2)           = 2
[pid 22239] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22239] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22239] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22240 attached
, child_tidptr=0x555555af35d0) = 22240
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22240] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22240] write(4, "78", 2)           = 2
[pid 22240] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22240] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22240] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22241 attached
, child_tidptr=0x555555af35d0) = 22241
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22241] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22241] write(4, "78", 2)           = 2
[pid 22241] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22241] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22241] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22242 attached
, child_tidptr=0x555555af35d0) = 22242
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22242] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22242] write(4, "78", 2)           = 2
[pid 22242] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22242] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22242] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22243
./strace-static-x86_64: Process 22243 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22243] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22243] write(4, "78", 2)           = 2
[pid 22243] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22243] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22243] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22244 attached
, child_tidptr=0x555555af35d0) = 22244
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22244] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22244] write(4, "78", 2)           = 2
[pid 22244] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22244] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22244] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22245 attached
, child_tidptr=0x555555af35d0) = 22245
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22245] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22245] write(4, "78", 2)           = 2
[pid 22245] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22245] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22245] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22246 attached
, child_tidptr=0x555555af35d0) = 22246
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22246] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22246] write(4, "78", 2)           = 2
[pid 22246] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22246] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22246] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22247 attached
, child_tidptr=0x555555af35d0) = 22247
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22247] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22247] write(4, "78", 2)           = 2
[pid 22247] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22247] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22247] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22248 attached
, child_tidptr=0x555555af35d0) = 22248
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22248] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22248] write(4, "78", 2)           = 2
[pid 22248] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22248] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22248] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22249 attached
, child_tidptr=0x555555af35d0) = 22249
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22249] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22249] write(4, "78", 2)           = 2
[pid 22249] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22249] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22249] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22250 attached
, child_tidptr=0x555555af35d0) = 22250
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22250] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22250] write(4, "78", 2)           = 2
[pid 22250] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22250] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22250] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22251 attached
, child_tidptr=0x555555af35d0) = 22251
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22251] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22251] write(4, "78", 2)           = 2
[pid 22251] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22251] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22251] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22252 attached
, child_tidptr=0x555555af35d0) = 22252
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22252] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22252] write(4, "78", 2)           = 2
[pid 22252] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22252] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22252] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22253 attached
, child_tidptr=0x555555af35d0) = 22253
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22253] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22253] write(4, "78", 2)           = 2
[pid 22253] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22253] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22253] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22254 attached
, child_tidptr=0x555555af35d0) = 22254
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22254] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22254] write(4, "78", 2)           = 2
[pid 22254] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22254] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22254] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22255 attached
, child_tidptr=0x555555af35d0) = 22255
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22255] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22255] write(4, "78", 2)           = 2
[pid 22255] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22255] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22255] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22256 attached
, child_tidptr=0x555555af35d0) = 22256
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22256] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22256] write(4, "78", 2)           = 2
[pid 22256] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22256] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22256] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22257 attached
, child_tidptr=0x555555af35d0) = 22257
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22257] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22257] write(4, "78", 2)           = 2
[pid 22257] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22257] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22257] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22258 attached
, child_tidptr=0x555555af35d0) = 22258
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22258] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22258] write(4, "78", 2)           = 2
[pid 22258] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22258] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22258] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22259
./strace-static-x86_64: Process 22259 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22259] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22259] write(4, "78", 2)           = 2
[pid 22259] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22259] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22259] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22260 attached
, child_tidptr=0x555555af35d0) = 22260
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22260] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22260] write(4, "78", 2)           = 2
[pid 22260] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22260] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22260] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22261 attached
, child_tidptr=0x555555af35d0) = 22261
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22261] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22261] write(4, "78", 2)           = 2
[pid 22261] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22261] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22261] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22262 attached
, child_tidptr=0x555555af35d0) = 22262
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22262] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22262] write(4, "78", 2)           = 2
[pid 22262] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22262] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22262] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22263 attached
, child_tidptr=0x555555af35d0) = 22263
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22263] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22263] write(4, "78", 2)           = 2
[pid 22263] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22263] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22263] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22264 attached
, child_tidptr=0x555555af35d0) = 22264
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22264] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22264] write(4, "78", 2)           = 2
[pid 22264] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22264] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22264] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22265 attached
, child_tidptr=0x555555af35d0) = 22265
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22265] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22265] write(4, "78", 2)           = 2
[pid 22265] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22265] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22265] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22266 attached
, child_tidptr=0x555555af35d0) = 22266
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22266] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22266] write(4, "78", 2)           = 2
[pid 22266] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22266] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22266] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22267
./strace-static-x86_64: Process 22267 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22267] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22267] write(4, "78", 2)           = 2
[pid 22267] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22267] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22267] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22268 attached
, child_tidptr=0x555555af35d0) = 22268
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22268] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22268] write(4, "78", 2)           = 2
[pid 22268] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22268] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22268] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22269
./strace-static-x86_64: Process 22269 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22269] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22269] write(4, "78", 2)           = 2
[pid 22269] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22269] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22269] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22270 attached
, child_tidptr=0x555555af35d0) = 22270
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22270] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22270] write(4, "78", 2)           = 2
[pid 22270] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22270] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22270] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22271 attached
, child_tidptr=0x555555af35d0) = 22271
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22271] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22271] write(4, "78", 2)           = 2
[pid 22271] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22271] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22271] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22272 attached
, child_tidptr=0x555555af35d0) = 22272
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22272] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22272] write(4, "78", 2)           = 2
[pid 22272] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22272] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22272] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22273 attached
, child_tidptr=0x555555af35d0) = 22273
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22273] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22273] write(4, "78", 2)           = 2
[pid 22273] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22273] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22273] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22274 attached
, child_tidptr=0x555555af35d0) = 22274
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22274] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22274] write(4, "78", 2)           = 2
[pid 22274] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22274] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22274] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22275 attached
, child_tidptr=0x555555af35d0) = 22275
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22275] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22275] write(4, "78", 2)           = 2
[pid 22275] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22275] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22275] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22276 attached
, child_tidptr=0x555555af35d0) = 22276
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22276] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22276] write(4, "78", 2)           = 2
[pid 22276] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22276] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22276] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22277
./strace-static-x86_64: Process 22277 attached
[pid 22277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22277] setpgid(0, 0)               = 0
[pid 22277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22277] write(3, "1000", 4)         = 4
[pid 22277] close(3)                    = 0
[pid 22277] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22277] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22277] write(4, "78", 2)           = 2
[pid 22277] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22277] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22277] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[pid 22277] exit_group(0)               = ?
[pid 22277] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22277, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22278 attached
, child_tidptr=0x555555af35d0) = 22278
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22278] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22278] write(4, "78", 2)           = 2
[pid 22278] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 22278] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22278] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22279
./strace-static-x86_64: Process 22279 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22279] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22279] write(4, "78", 2)           = 2
[pid 22279] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22279] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22279] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22280 attached
, child_tidptr=0x555555af35d0) = 22280
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22280] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22280] write(4, "78", 2)           = 2
[pid 22280] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22280] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22280] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22281 attached
, child_tidptr=0x555555af35d0) = 22281
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22281] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22281] write(4, "78", 2)           = 2
[pid 22281] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22281] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22281] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22282 attached
, child_tidptr=0x555555af35d0) = 22282
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22282] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22282] write(4, "78", 2)           = 2
[pid 22282] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22282] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22282] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22283
./strace-static-x86_64: Process 22283 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22283] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22283] write(4, "78", 2)           = 2
[pid 22283] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22283] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22283] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22284 attached
, child_tidptr=0x555555af35d0) = 22284
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22284] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22284] write(4, "78", 2)           = 2
[pid 22284] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22284] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22284] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22285
./strace-static-x86_64: Process 22285 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22285] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22285] write(4, "78", 2)           = 2
[pid 22285] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22285] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22285] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22286 attached
, child_tidptr=0x555555af35d0) = 22286
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22286] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22286] write(4, "78", 2)           = 2
[pid 22286] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22286] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22286] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22287 attached
, child_tidptr=0x555555af35d0) = 22287
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22287] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22287] write(4, "78", 2)           = 2
[pid 22287] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22287] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22287] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22288 attached
, child_tidptr=0x555555af35d0) = 22288
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22288] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22288] write(4, "78", 2)           = 2
[pid 22288] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22288] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22288] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22289
./strace-static-x86_64: Process 22289 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22289] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22289] write(4, "78", 2)           = 2
[pid 22289] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22289] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22289] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22290 attached
, child_tidptr=0x555555af35d0) = 22290
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22290] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22290] write(4, "78", 2)           = 2
[pid 22290] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22290] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22290] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22291 attached
, child_tidptr=0x555555af35d0) = 22291
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22291] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22291] write(4, "78", 2)           = 2
[pid 22291] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22291] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22291] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22292 attached
, child_tidptr=0x555555af35d0) = 22292
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22292] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22292] write(4, "78", 2)           = 2
[pid 22292] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22292] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22292] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22293 attached
, child_tidptr=0x555555af35d0) = 22293
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22293] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22293] write(4, "78", 2)           = 2
[pid 22293] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22293] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22293] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22294
./strace-static-x86_64: Process 22294 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22294] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22294] write(4, "78", 2)           = 2
[pid 22294] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22294] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22294] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22295 attached
, child_tidptr=0x555555af35d0) = 22295
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22295] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22295] write(4, "78", 2)           = 2
[pid 22295] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22295] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22295] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22296 attached
, child_tidptr=0x555555af35d0) = 22296
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22296] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22296] write(4, "78", 2)           = 2
[pid 22296] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22296] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22296] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22297 attached
, child_tidptr=0x555555af35d0) = 22297
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22297] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22297] write(4, "78", 2)           = 2
[pid 22297] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22297] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22297] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22298 attached
, child_tidptr=0x555555af35d0) = 22298
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22298] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22298] write(4, "78", 2)           = 2
[pid 22298] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22298] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22298] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22299 attached
, child_tidptr=0x555555af35d0) = 22299
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22299] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22299] write(4, "78", 2)           = 2
[pid 22299] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22299] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22299] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22300 attached
, child_tidptr=0x555555af35d0) = 22300
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22300] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22300] write(4, "78", 2)           = 2
[pid 22300] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22300] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22300] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22301 attached
, child_tidptr=0x555555af35d0) = 22301
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22301] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22301] write(4, "78", 2)           = 2
[pid 22301] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22301] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22301] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22302 attached
, child_tidptr=0x555555af35d0) = 22302
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22302] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22302] write(4, "78", 2)           = 2
[pid 22302] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22302] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22302] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22303
./strace-static-x86_64: Process 22303 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22303] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22303] write(4, "78", 2)           = 2
[pid 22303] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22303] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22303] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22304
./strace-static-x86_64: Process 22304 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22304] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22304] write(4, "78", 2)           = 2
[pid 22304] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22304] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22304] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22305 attached
, child_tidptr=0x555555af35d0) = 22305
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22305] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22305] write(4, "78", 2)           = 2
[pid 22305] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22305] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22305] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22306 attached
, child_tidptr=0x555555af35d0) = 22306
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22306] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22306] write(4, "78", 2)           = 2
[pid 22306] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22306] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22306] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22307
./strace-static-x86_64: Process 22307 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22307] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22307] write(4, "78", 2)           = 2
[pid 22307] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22307] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22307] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22308 attached
, child_tidptr=0x555555af35d0) = 22308
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22308] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22308] write(4, "78", 2)           = 2
[pid 22308] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22308] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22308] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22309 attached
, child_tidptr=0x555555af35d0) = 22309
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22309] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22309] write(4, "78", 2)           = 2
[pid 22309] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22309] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22309] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22310 attached
, child_tidptr=0x555555af35d0) = 22310
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22310] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22310] write(4, "78", 2)           = 2
[pid 22310] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22310] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22310] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22311 attached
, child_tidptr=0x555555af35d0) = 22311
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22311] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22311] write(4, "78", 2)           = 2
[pid 22311] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22311] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22311] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22312
./strace-static-x86_64: Process 22312 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22312] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22312] write(4, "78", 2)           = 2
[pid 22312] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22312] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22312] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22313 attached
, child_tidptr=0x555555af35d0) = 22313
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22313] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22313] write(4, "78", 2)           = 2
[pid 22313] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22313] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22313] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22314 attached
, child_tidptr=0x555555af35d0) = 22314
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22314] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22314] write(4, "78", 2)           = 2
[pid 22314] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22314] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22314] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22315 attached
, child_tidptr=0x555555af35d0) = 22315
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22315] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22315] write(4, "78", 2)           = 2
[pid 22315] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22315] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22315] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22316 attached
, child_tidptr=0x555555af35d0) = 22316
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22316] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22316] write(4, "78", 2)           = 2
[pid 22316] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22316] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22316] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22317 attached
, child_tidptr=0x555555af35d0) = 22317
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22317] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22317] write(4, "78", 2)           = 2
[pid 22317] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22317] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22317] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22318 attached
, child_tidptr=0x555555af35d0) = 22318
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22318] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22318] write(4, "78", 2)           = 2
[pid 22318] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22318] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22318] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22319
./strace-static-x86_64: Process 22319 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22319] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22319] write(4, "78", 2)           = 2
[pid 22319] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22319] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22319] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22320 attached
, child_tidptr=0x555555af35d0) = 22320
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22320] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22320] write(4, "78", 2)           = 2
[pid 22320] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22320] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22320] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22321 attached
, child_tidptr=0x555555af35d0) = 22321
[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
[pid 22321] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22321] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22321] write(4, "78", 2)           = 2
[pid 22321] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22321] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22321] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22322 attached
, child_tidptr=0x555555af35d0) = 22322
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22322] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22322] write(4, "78", 2)           = 2
[pid 22322] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22322] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22322] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22323
./strace-static-x86_64: Process 22323 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22323] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22323] write(4, "78", 2)           = 2
[pid 22323] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22323] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22323] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22324 attached
, child_tidptr=0x555555af35d0) = 22324
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22324] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22324] write(4, "78", 2)           = 2
[pid 22324] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22324] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22324] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22325 attached
, child_tidptr=0x555555af35d0) = 22325
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22325] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22325] write(4, "78", 2)           = 2
[pid 22325] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22325] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22325] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22326 attached
, child_tidptr=0x555555af35d0) = 22326
[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
[pid 22326] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22326] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22326] write(4, "78", 2)           = 2
[pid 22326] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22326] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22326] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22327 attached
, child_tidptr=0x555555af35d0) = 22327
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22327] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22327] write(4, "78", 2)           = 2
[pid 22327] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22327] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22327] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22328
./strace-static-x86_64: Process 22328 attached
[pid 22328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22328] setpgid(0, 0)               = 0
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22328] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22328] write(4, "78", 2)           = 2
[pid 22328] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22328] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22328] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22329 attached
, child_tidptr=0x555555af35d0) = 22329
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22329] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22329] write(4, "78", 2)           = 2
[pid 22329] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22329] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22329] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22330 attached
, child_tidptr=0x555555af35d0) = 22330
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22330] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22330] write(4, "78", 2)           = 2
[pid 22330] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22330] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22330] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22331 attached
, child_tidptr=0x555555af35d0) = 22331
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22331] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22331] write(4, "78", 2)           = 2
[pid 22331] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22331] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22331] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22332 attached
, child_tidptr=0x555555af35d0) = 22332
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22332] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22332] write(4, "78", 2)           = 2
[pid 22332] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22332] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22332] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22333
./strace-static-x86_64: Process 22333 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22333] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22333] write(4, "78", 2)           = 2
[pid 22333] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 22333] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22333] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22334 attached
, child_tidptr=0x555555af35d0) = 22334
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22334] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22334] write(4, "78", 2)           = 2
[pid 22334] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22334] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22334] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22335
./strace-static-x86_64: Process 22335 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22335] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22335] write(4, "78", 2)           = 2
[pid 22335] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22335] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22335] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22336
./strace-static-x86_64: Process 22336 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22336] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22336] write(4, "78", 2)           = 2
[pid 22336] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22336] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22336] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22337 attached
, child_tidptr=0x555555af35d0) = 22337
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22337] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22337] write(4, "78", 2)           = 2
[pid 22337] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22337] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22337] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22338 attached
, child_tidptr=0x555555af35d0) = 22338
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22338] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22338] write(4, "78", 2)           = 2
[pid 22338] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22338] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22338] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22339
./strace-static-x86_64: Process 22339 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22339] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22339] write(4, "78", 2)           = 2
[pid 22339] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22339] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22339] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22340 attached
, child_tidptr=0x555555af35d0) = 22340
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22340] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22340] write(4, "78", 2)           = 2
[pid 22340] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22340] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22340] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22341 attached
, child_tidptr=0x555555af35d0) = 22341
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22341] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22341] write(4, "78", 2)           = 2
[pid 22341] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22341] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22341] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22342 attached
, child_tidptr=0x555555af35d0) = 22342
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22342] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22342] write(4, "78", 2)           = 2
[pid 22342] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22342] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22342] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22343 attached
, child_tidptr=0x555555af35d0) = 22343
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22343] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22343] write(4, "78", 2)           = 2
[pid 22343] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22343] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22343] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22344
./strace-static-x86_64: Process 22344 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22344] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22344] write(4, "78", 2)           = 2
[pid 22344] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22344] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22344] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22345 attached
, child_tidptr=0x555555af35d0) = 22345
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22345] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22345] write(4, "78", 2)           = 2
[pid 22345] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22345] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22345] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22346 attached
, child_tidptr=0x555555af35d0) = 22346
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22346] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22346] write(4, "78", 2)           = 2
[pid 22346] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22346] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22346] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22347 attached
, child_tidptr=0x555555af35d0) = 22347
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22347] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22347] write(4, "78", 2)           = 2
[pid 22347] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22347] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22347] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22348 attached
, child_tidptr=0x555555af35d0) = 22348
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22348] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22348] write(4, "78", 2)           = 2
[pid 22348] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22348] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22348] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22349 attached
, child_tidptr=0x555555af35d0) = 22349
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22349] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22349] write(4, "78", 2)           = 2
[pid 22349] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22349] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22349] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22350 attached
, child_tidptr=0x555555af35d0) = 22350
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22350] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22350] write(4, "78", 2)           = 2
[pid 22350] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22350] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22350] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22351 attached
, child_tidptr=0x555555af35d0) = 22351
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22351] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22351] write(4, "78", 2)           = 2
[pid 22351] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22351] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22351] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22352 attached
, child_tidptr=0x555555af35d0) = 22352
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22352] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22352] write(4, "78", 2)           = 2
[pid 22352] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22352] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22352] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22353 attached
, child_tidptr=0x555555af35d0) = 22353
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22353] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22353] write(4, "78", 2)           = 2
[pid 22353] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22353] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22353] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22354 attached
, child_tidptr=0x555555af35d0) = 22354
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22354] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22354] write(4, "78", 2)           = 2
[pid 22354] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22354] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22354] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22355 attached
, child_tidptr=0x555555af35d0) = 22355
[pid 22355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22355] setpgid(0, 0)               = 0
[pid 22355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22355] write(3, "1000", 4)         = 4
[pid 22355] close(3)                    = 0
[pid 22355] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22355] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22355] write(4, "78", 2)           = 2
[pid 22355] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22355] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22355] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22355] exit_group(0)               = ?
[pid 22355] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22355, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22356
./strace-static-x86_64: Process 22356 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22356] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22356] write(4, "78", 2)           = 2
[pid 22356] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22356] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22356] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22357
./strace-static-x86_64: Process 22357 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22357] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22357] write(4, "78", 2)           = 2
[pid 22357] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22357] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22357] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22358
./strace-static-x86_64: Process 22358 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22358] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22358] write(4, "78", 2)           = 2
[pid 22358] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22358] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22358] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22359 attached
, child_tidptr=0x555555af35d0) = 22359
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22359] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22359] write(4, "78", 2)           = 2
[pid 22359] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22359] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22359] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22360
./strace-static-x86_64: Process 22360 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22360] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22360] write(4, "78", 2)           = 2
[pid 22360] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22360] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22360] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22361
./strace-static-x86_64: Process 22361 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22361] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22361] write(4, "78", 2)           = 2
[pid 22361] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22361] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22361] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22362 attached
, child_tidptr=0x555555af35d0) = 22362
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22362] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22362] write(4, "78", 2)           = 2
[pid 22362] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22362] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22362] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22363 attached
, child_tidptr=0x555555af35d0) = 22363
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22363] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22363] write(4, "78", 2)           = 2
[pid 22363] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22363] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22363] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22364 attached
, child_tidptr=0x555555af35d0) = 22364
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22364] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22364] write(4, "78", 2)           = 2
[pid 22364] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22364] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22364] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22365 attached
, child_tidptr=0x555555af35d0) = 22365
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22365] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22365] write(4, "78", 2)           = 2
[pid 22365] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22365] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22365] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22366 attached
, child_tidptr=0x555555af35d0) = 22366
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22366] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22366] write(4, "78", 2)           = 2
[pid 22366] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22366] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22366] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22367 attached
, child_tidptr=0x555555af35d0) = 22367
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22367] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22367] write(4, "78", 2)           = 2
[pid 22367] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22367] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22367] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22368 attached
, child_tidptr=0x555555af35d0) = 22368
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22368] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22368] write(4, "78", 2)           = 2
[pid 22368] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22368] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22368] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22369 attached
, child_tidptr=0x555555af35d0) = 22369
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22369] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22369] write(4, "78", 2)           = 2
[pid 22369] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22369] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22369] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22370 attached
, child_tidptr=0x555555af35d0) = 22370
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22370] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22370] write(4, "78", 2)           = 2
[pid 22370] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22370] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22370] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22371 attached
, child_tidptr=0x555555af35d0) = 22371
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22371] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22371] write(4, "78", 2)           = 2
[pid 22371] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22371] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22371] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22372 attached
, child_tidptr=0x555555af35d0) = 22372
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22372] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22372] write(4, "78", 2)           = 2
[pid 22372] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22372] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22372] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22373 attached
, child_tidptr=0x555555af35d0) = 22373
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22373] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22373] write(4, "78", 2)           = 2
[pid 22373] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22373] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22373] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22374 attached
, child_tidptr=0x555555af35d0) = 22374
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22374] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22374] write(4, "78", 2)           = 2
[pid 22374] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22374] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22374] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22375
./strace-static-x86_64: Process 22375 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22375] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22375] write(4, "78", 2)           = 2
[pid 22375] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22375] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22375] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22376 attached
, child_tidptr=0x555555af35d0) = 22376
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22376] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22376] write(4, "78", 2)           = 2
[pid 22376] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22376] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22376] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22377 attached
, child_tidptr=0x555555af35d0) = 22377
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22377] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22377] write(4, "78", 2)           = 2
[pid 22377] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22377] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22377] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22378 attached
, child_tidptr=0x555555af35d0) = 22378
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22378] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22378] write(4, "78", 2)           = 2
[pid 22378] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22378] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22378] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22379 attached
, child_tidptr=0x555555af35d0) = 22379
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22379] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22379] write(4, "78", 2)           = 2
[pid 22379] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22379] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22379] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22380 attached
, child_tidptr=0x555555af35d0) = 22380
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22380] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22380] write(4, "78", 2)           = 2
[pid 22380] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22380] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22380] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22381 attached
, child_tidptr=0x555555af35d0) = 22381
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22381] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22381] write(4, "78", 2)           = 2
[pid 22381] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22381] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22381] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22382 attached
, child_tidptr=0x555555af35d0) = 22382
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22382] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22382] write(4, "78", 2)           = 2
[pid 22382] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22382] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22382] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22383 attached
, child_tidptr=0x555555af35d0) = 22383
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22383] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22383] write(4, "78", 2)           = 2
[pid 22383] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22383] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22383] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22384 attached
, child_tidptr=0x555555af35d0) = 22384
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22384] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22384] write(4, "78", 2)           = 2
[pid 22384] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22384] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22384] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22385
./strace-static-x86_64: Process 22385 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22385] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22385] write(4, "78", 2)           = 2
[pid 22385] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22385] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22385] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22386
./strace-static-x86_64: Process 22386 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22386] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22386] write(4, "78", 2)           = 2
[pid 22386] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22386] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22386] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22387 attached
, child_tidptr=0x555555af35d0) = 22387
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22387] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22387] write(4, "78", 2)           = 2
[pid 22387] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22387] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22387] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22388 attached
, child_tidptr=0x555555af35d0) = 22388
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22388] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22388] write(4, "78", 2)           = 2
[pid 22388] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22388] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22388] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22389
./strace-static-x86_64: Process 22389 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22389] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22389] write(4, "78", 2)           = 2
[pid 22389] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22389] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22389] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22390 attached
, child_tidptr=0x555555af35d0) = 22390
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22390] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22390] write(4, "78", 2)           = 2
[pid 22390] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22390] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22390] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22391
./strace-static-x86_64: Process 22391 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22391] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22391] write(4, "78", 2)           = 2
[pid 22391] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22391] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22391] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22392
./strace-static-x86_64: Process 22392 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22392] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22392] write(4, "78", 2)           = 2
[pid 22392] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22392] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22392] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22393 attached
, child_tidptr=0x555555af35d0) = 22393
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22393] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22393] write(4, "78", 2)           = 2
[pid 22393] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22393] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22393] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22394
./strace-static-x86_64: Process 22394 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22394] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22394] write(4, "78", 2)           = 2
[pid 22394] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22394] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22394] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22395 attached
, child_tidptr=0x555555af35d0) = 22395
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22395] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22395] write(4, "78", 2)           = 2
[pid 22395] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22395] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22395] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22396 attached
, child_tidptr=0x555555af35d0) = 22396
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22396] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22396] write(4, "78", 2)           = 2
[pid 22396] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22396] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22396] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22397 attached
, child_tidptr=0x555555af35d0) = 22397
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22397] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22397] write(4, "78", 2)           = 2
[pid 22397] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22397] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22397] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22398 attached
, child_tidptr=0x555555af35d0) = 22398
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22398] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22398] write(4, "78", 2)           = 2
[pid 22398] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22398] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22398] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22399 attached
, child_tidptr=0x555555af35d0) = 22399
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22399] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22399] write(4, "78", 2)           = 2
[pid 22399] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22399] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22399] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22400 attached
, child_tidptr=0x555555af35d0) = 22400
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22400] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22400] write(4, "78", 2)           = 2
[pid 22400] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22400] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22400] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22401 attached
, child_tidptr=0x555555af35d0) = 22401
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22401] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22401] write(4, "78", 2)           = 2
[pid 22401] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22401] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22401] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22402 attached
, child_tidptr=0x555555af35d0) = 22402
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22402] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22402] write(4, "78", 2)           = 2
[pid 22402] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22402] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22402] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22403 attached
, child_tidptr=0x555555af35d0) = 22403
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22403] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22403] write(4, "78", 2)           = 2
[pid 22403] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22403] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22403] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22404 attached
, child_tidptr=0x555555af35d0) = 22404
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22404] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22404] write(4, "78", 2)           = 2
[pid 22404] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22404] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22404] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22405
./strace-static-x86_64: Process 22405 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22405] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22405] write(4, "78", 2)           = 2
[pid 22405] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22405] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22405] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22406 attached
, child_tidptr=0x555555af35d0) = 22406
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22406] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22406] write(4, "78", 2)           = 2
[pid 22406] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22406] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22406] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22407 attached
, child_tidptr=0x555555af35d0) = 22407
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22407] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22407] write(4, "78", 2)           = 2
[pid 22407] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22407] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22407] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22408 attached
, child_tidptr=0x555555af35d0) = 22408
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22408] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22408] write(4, "78", 2)           = 2
[pid 22408] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22408] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22408] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22409 attached
, child_tidptr=0x555555af35d0) = 22409
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22409] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22409] write(4, "78", 2)           = 2
[pid 22409] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22409] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22409] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22410 attached
, child_tidptr=0x555555af35d0) = 22410
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22410] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22410] write(4, "78", 2)           = 2
[pid 22410] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22410] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22410] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22411 attached
, child_tidptr=0x555555af35d0) = 22411
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22411] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22411] write(4, "78", 2)           = 2
[pid 22411] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22411] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22411] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22412 attached
, child_tidptr=0x555555af35d0) = 22412
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22412] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22412] write(4, "78", 2)           = 2
[pid 22412] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22412] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22412] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22413 attached
, child_tidptr=0x555555af35d0) = 22413
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22413] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22413] write(4, "78", 2)           = 2
[pid 22413] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22413] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22413] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22414 attached
, child_tidptr=0x555555af35d0) = 22414
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22414] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22414] write(4, "78", 2)           = 2
[pid 22414] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22414] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22414] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22415 attached
, child_tidptr=0x555555af35d0) = 22415
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22415] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22415] write(4, "78", 2)           = 2
[pid 22415] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22415] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22415] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22416 attached
, child_tidptr=0x555555af35d0) = 22416
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22416] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22416] write(4, "78", 2)           = 2
[pid 22416] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22416] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22416] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22417 attached
, child_tidptr=0x555555af35d0) = 22417
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22417] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22417] write(4, "78", 2)           = 2
[pid 22417] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22417] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22417] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22418 attached
, child_tidptr=0x555555af35d0) = 22418
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22418] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22418] write(4, "78", 2)           = 2
[pid 22418] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22418] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22418] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22419 attached
, child_tidptr=0x555555af35d0) = 22419
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22419] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22419] write(4, "78", 2)           = 2
[pid 22419] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22419] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22419] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22420 attached
, child_tidptr=0x555555af35d0) = 22420
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22420] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22420] write(4, "78", 2)           = 2
[pid 22420] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22420] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22420] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22421 attached
, child_tidptr=0x555555af35d0) = 22421
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22421] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22421] write(4, "78", 2)           = 2
[pid 22421] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22421] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22421] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22422 attached
, child_tidptr=0x555555af35d0) = 22422
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22422] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22422] write(4, "78", 2)           = 2
[pid 22422] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 22422] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22422] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22423 attached
, child_tidptr=0x555555af35d0) = 22423
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22423] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22423] write(4, "78", 2)           = 2
[pid 22423] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22423] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22423] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22424
./strace-static-x86_64: Process 22424 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22424] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22424] write(4, "78", 2)           = 2
[pid 22424] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22424] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22424] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22425 attached
, child_tidptr=0x555555af35d0) = 22425
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22425] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22425] write(4, "78", 2)           = 2
[pid 22425] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22425] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22425] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22426
./strace-static-x86_64: Process 22426 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22426] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22426] write(4, "78", 2)           = 2
[pid 22426] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22426] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22426] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22427 attached
, child_tidptr=0x555555af35d0) = 22427
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22427] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22427] write(4, "78", 2)           = 2
[pid 22427] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22427] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22427] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22428
./strace-static-x86_64: Process 22428 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22428] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22428] write(4, "78", 2)           = 2
[pid 22428] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22428] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22428] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22429
./strace-static-x86_64: Process 22429 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22429] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22429] write(4, "78", 2)           = 2
[pid 22429] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22429] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22429] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22430 attached
, child_tidptr=0x555555af35d0) = 22430
[pid 22430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22430] setpgid(0, 0)               = 0
[pid 22430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22430] write(3, "1000", 4)         = 4
[pid 22430] close(3)                    = 0
[pid 22430] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22430] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22430] write(4, "78", 2)           = 2
[pid 22430] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22430] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22430] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22430] exit_group(0)               = ?
[pid 22430] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22430, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22431 attached
, child_tidptr=0x555555af35d0) = 22431
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22431] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22431] write(4, "78", 2)           = 2
[pid 22431] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22431] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22431] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22432 attached
, child_tidptr=0x555555af35d0) = 22432
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22432] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22432] write(4, "78", 2)           = 2
[pid 22432] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22432] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22432] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22433 attached
, child_tidptr=0x555555af35d0) = 22433
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22433] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22433] write(4, "78", 2)           = 2
[pid 22433] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22433] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22433] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22434 attached
, child_tidptr=0x555555af35d0) = 22434
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22434] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22434] write(4, "78", 2)           = 2
[pid 22434] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22434] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22434] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22435 attached
, child_tidptr=0x555555af35d0) = 22435
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22435] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22435] write(4, "78", 2)           = 2
[pid 22435] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22435] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22435] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22436 attached
, child_tidptr=0x555555af35d0) = 22436
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22436] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22436] write(4, "78", 2)           = 2
[pid 22436] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22436] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22436] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22437 attached
, child_tidptr=0x555555af35d0) = 22437
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22437] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22437] write(4, "78", 2)           = 2
[pid 22437] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22437] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22437] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22438 attached
, child_tidptr=0x555555af35d0) = 22438
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22438] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22438] write(4, "78", 2)           = 2
[pid 22438] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22438] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22438] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22439 attached
, child_tidptr=0x555555af35d0) = 22439
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22439] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22439] write(4, "78", 2)           = 2
[pid 22439] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22439] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22439] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22440 attached
, child_tidptr=0x555555af35d0) = 22440
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22440] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22440] write(4, "78", 2)           = 2
[pid 22440] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22440] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22440] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22441 attached
, child_tidptr=0x555555af35d0) = 22441
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22441] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22441] write(4, "78", 2)           = 2
[pid 22441] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22441] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22441] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22442 attached
, child_tidptr=0x555555af35d0) = 22442
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22442] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22442] write(4, "78", 2)           = 2
[pid 22442] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22442] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22442] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22443 attached
, child_tidptr=0x555555af35d0) = 22443
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22443] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22443] write(4, "78", 2)           = 2
[pid 22443] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22443] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22443] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22444 attached
, child_tidptr=0x555555af35d0) = 22444
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22444] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22444] write(4, "78", 2)           = 2
[pid 22444] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22444] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22444] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22445 attached
, child_tidptr=0x555555af35d0) = 22445
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22445] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22445] write(4, "78", 2)           = 2
[pid 22445] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22445] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22445] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22446 attached
, child_tidptr=0x555555af35d0) = 22446
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22446] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22446] write(4, "78", 2)           = 2
[pid 22446] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22446] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22446] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22447 attached
, child_tidptr=0x555555af35d0) = 22447
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22447] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22447] write(4, "78", 2)           = 2
[pid 22447] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22447] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22447] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22448
./strace-static-x86_64: Process 22448 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22448] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22448] write(4, "78", 2)           = 2
[pid 22448] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22448] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22448] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22449 attached
, child_tidptr=0x555555af35d0) = 22449
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22449] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22449] write(4, "78", 2)           = 2
[pid 22449] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22449] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22449] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22450 attached
, child_tidptr=0x555555af35d0) = 22450
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22450] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22450] write(4, "78", 2)           = 2
[pid 22450] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22450] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22450] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22451 attached
, child_tidptr=0x555555af35d0) = 22451
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22451] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22451] write(4, "78", 2)           = 2
[pid 22451] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22451] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22451] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22452 attached
, child_tidptr=0x555555af35d0) = 22452
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22452] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22452] write(4, "78", 2)           = 2
[pid 22452] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22452] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22452] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22453 attached
, child_tidptr=0x555555af35d0) = 22453
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22453] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22453] write(4, "78", 2)           = 2
[pid 22453] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22453] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22453] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22454 attached
, child_tidptr=0x555555af35d0) = 22454
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22454] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22454] write(4, "78", 2)           = 2
[pid 22454] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22454] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22454] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22455 attached
, child_tidptr=0x555555af35d0) = 22455
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22455] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22455] write(4, "78", 2)           = 2
[pid 22455] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22455] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22455] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22456
./strace-static-x86_64: Process 22456 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22456] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22456] write(4, "78", 2)           = 2
[pid 22456] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22456] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22456] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22457 attached
, child_tidptr=0x555555af35d0) = 22457
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22457] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22457] write(4, "78", 2)           = 2
[pid 22457] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22457] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22457] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22458 attached
, child_tidptr=0x555555af35d0) = 22458
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22458] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22458] write(4, "78", 2)           = 2
[pid 22458] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22458] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22458] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22459 attached
, child_tidptr=0x555555af35d0) = 22459
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22459] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22459] write(4, "78", 2)           = 2
[pid 22459] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22459] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22459] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22460 attached
, child_tidptr=0x555555af35d0) = 22460
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22460] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22460] write(4, "78", 2)           = 2
[pid 22460] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22460] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22460] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22461 attached
, child_tidptr=0x555555af35d0) = 22461
[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
[pid 22461] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22461] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22461] write(4, "78", 2)           = 2
[pid 22461] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22461] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22461] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22462 attached
, child_tidptr=0x555555af35d0) = 22462
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22462] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22462] write(4, "78", 2)           = 2
[pid 22462] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22462] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22462] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22463 attached
, child_tidptr=0x555555af35d0) = 22463
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22463] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22463] write(4, "78", 2)           = 2
[pid 22463] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22463] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22463] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22464 attached
, child_tidptr=0x555555af35d0) = 22464
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22464] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22464] write(4, "78", 2)           = 2
[pid 22464] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22464] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22464] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22465 attached
, child_tidptr=0x555555af35d0) = 22465
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22465] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22465] write(4, "78", 2)           = 2
[pid 22465] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22465] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22465] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22466 attached
, child_tidptr=0x555555af35d0) = 22466
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22466] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22466] write(4, "78", 2)           = 2
[pid 22466] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22466] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22466] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22467
./strace-static-x86_64: Process 22467 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22467] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22467] write(4, "78", 2)           = 2
[pid 22467] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22467] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22467] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22468 attached
, child_tidptr=0x555555af35d0) = 22468
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22468] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22468] write(4, "78", 2)           = 2
[pid 22468] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22468] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22468] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22469 attached
, child_tidptr=0x555555af35d0) = 22469
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22469] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22469] write(4, "78", 2)           = 2
[pid 22469] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22469] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22469] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22470 attached
, child_tidptr=0x555555af35d0) = 22470
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22470] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22470] write(4, "78", 2)           = 2
[pid 22470] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22470] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22470] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22471 attached
, child_tidptr=0x555555af35d0) = 22471
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22471] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22471] write(4, "78", 2)           = 2
[pid 22471] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22471] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22471] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22472 attached
, child_tidptr=0x555555af35d0) = 22472
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22472] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22472] write(4, "78", 2)           = 2
[pid 22472] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22472] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22472] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22473 attached
, child_tidptr=0x555555af35d0) = 22473
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22473] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22473] write(4, "78", 2)           = 2
[pid 22473] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22473] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22473] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22474 attached
, child_tidptr=0x555555af35d0) = 22474
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22474] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22474] write(4, "78", 2)           = 2
[pid 22474] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22474] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22474] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22475 attached
, child_tidptr=0x555555af35d0) = 22475
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22475] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22475] write(4, "78", 2)           = 2
[pid 22475] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22475] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22475] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22476 attached
, child_tidptr=0x555555af35d0) = 22476
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22476] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22476] write(4, "78", 2)           = 2
[pid 22476] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22476] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22476] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22477 attached
, child_tidptr=0x555555af35d0) = 22477
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22477] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22477] write(4, "78", 2)           = 2
[pid 22477] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22477] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22477] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22478 attached
, child_tidptr=0x555555af35d0) = 22478
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22478] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22478] write(4, "78", 2)           = 2
[pid 22478] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22478] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22478] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22479 attached
, child_tidptr=0x555555af35d0) = 22479
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22479] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22479] write(4, "78", 2)           = 2
[pid 22479] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22479] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22479] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22480 attached
, child_tidptr=0x555555af35d0) = 22480
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22480] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22480] write(4, "78", 2)           = 2
[pid 22480] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22480] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22480] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22481 attached
, child_tidptr=0x555555af35d0) = 22481
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22481] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22481] write(4, "78", 2)           = 2
[pid 22481] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22481] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22481] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22482
./strace-static-x86_64: Process 22482 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22482] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22482] write(4, "78", 2)           = 2
[pid 22482] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22482] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22482] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22483 attached
, child_tidptr=0x555555af35d0) = 22483
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22483] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22483] write(4, "78", 2)           = 2
[pid 22483] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22483] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22483] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22484
./strace-static-x86_64: Process 22484 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22484] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22484] write(4, "78", 2)           = 2
[pid 22484] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22484] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22484] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22485 attached
, child_tidptr=0x555555af35d0) = 22485
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22485] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22485] write(4, "78", 2)           = 2
[pid 22485] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22485] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22485] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22486
./strace-static-x86_64: Process 22486 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22486] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22486] write(4, "78", 2)           = 2
[pid 22486] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22486] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22486] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22487
./strace-static-x86_64: Process 22487 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22487] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22487] write(4, "78", 2)           = 2
[pid 22487] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22487] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22487] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22488
./strace-static-x86_64: Process 22488 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22488] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22488] write(4, "78", 2)           = 2
[pid 22488] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22488] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22488] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22489
./strace-static-x86_64: Process 22489 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22489] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22489] write(4, "78", 2)           = 2
[pid 22489] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22489] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22489] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22490
./strace-static-x86_64: Process 22490 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22490] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22490] write(4, "78", 2)           = 2
[pid 22490] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22490] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22490] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22491 attached
, child_tidptr=0x555555af35d0) = 22491
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22491] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22491] write(4, "78", 2)           = 2
[pid 22491] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22491] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22491] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22492 attached
, child_tidptr=0x555555af35d0) = 22492
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22492] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22492] write(4, "78", 2)           = 2
[pid 22492] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22492] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22492] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22493 attached
, child_tidptr=0x555555af35d0) = 22493
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22493] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22493] write(4, "78", 2)           = 2
[pid 22493] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22493] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22493] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22494 attached
, child_tidptr=0x555555af35d0) = 22494
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22494] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22494] write(4, "78", 2)           = 2
[pid 22494] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22494] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22494] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22495 attached
, child_tidptr=0x555555af35d0) = 22495
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22495] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22495] write(4, "78", 2)           = 2
[pid 22495] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22495] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22495] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22496 attached
, child_tidptr=0x555555af35d0) = 22496
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22496] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22496] write(4, "78", 2)           = 2
[pid 22496] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22496] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22496] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22497 attached
, child_tidptr=0x555555af35d0) = 22497
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22497] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22497] write(4, "78", 2)           = 2
[pid 22497] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22497] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22497] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22498 attached
, child_tidptr=0x555555af35d0) = 22498
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22498] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22498] write(4, "78", 2)           = 2
[pid 22498] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22498] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22498] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22499 attached
, child_tidptr=0x555555af35d0) = 22499
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22499] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22499] write(4, "78", 2)           = 2
[pid 22499] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22499] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22499] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22500 attached
, child_tidptr=0x555555af35d0) = 22500
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22500] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22500] write(4, "78", 2)           = 2
[pid 22500] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22500] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22500] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22501
./strace-static-x86_64: Process 22501 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22501] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22501] write(4, "78", 2)           = 2
[pid 22501] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22501] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22501] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22502
./strace-static-x86_64: Process 22502 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22502] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22502] write(4, "78", 2)           = 2
[pid 22502] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22502] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22502] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22503 attached
, child_tidptr=0x555555af35d0) = 22503
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22503] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22503] write(4, "78", 2)           = 2
[pid 22503] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22503] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22503] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22504 attached
, child_tidptr=0x555555af35d0) = 22504
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22504] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22504] write(4, "78", 2)           = 2
[pid 22504] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22504] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22504] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22505
./strace-static-x86_64: Process 22505 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22505] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22505] write(4, "78", 2)           = 2
[pid 22505] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22505] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22505] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22506 attached
, child_tidptr=0x555555af35d0) = 22506
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22506] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22506] write(4, "78", 2)           = 2
[pid 22506] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22506] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22506] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22507 attached
, child_tidptr=0x555555af35d0) = 22507
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22507] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22507] write(4, "78", 2)           = 2
[pid 22507] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22507] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22507] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22508 attached
, child_tidptr=0x555555af35d0) = 22508
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22508] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22508] write(4, "78", 2)           = 2
[pid 22508] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22508] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22508] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22509 attached
, child_tidptr=0x555555af35d0) = 22509
[pid 22509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22509] setpgid(0, 0)               = 0
[pid 22509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22509] write(3, "1000", 4)         = 4
[pid 22509] close(3)                    = 0
[pid 22509] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22509] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22509] write(4, "78", 2)           = 2
[pid 22509] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22509] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22509] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22509] exit_group(0)               = ?
[pid 22509] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22509, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22510
./strace-static-x86_64: Process 22510 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22510] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22510] write(4, "78", 2)           = 2
[pid 22510] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22510] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22510] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22511
./strace-static-x86_64: Process 22511 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22511] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22511] write(4, "78", 2)           = 2
[pid 22511] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22511] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22511] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22512 attached
, child_tidptr=0x555555af35d0) = 22512
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22512] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22512] write(4, "78", 2)           = 2
[pid 22512] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22512] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22512] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22513 attached
, child_tidptr=0x555555af35d0) = 22513
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22513] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22513] write(4, "78", 2)           = 2
[pid 22513] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22513] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22513] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22514
./strace-static-x86_64: Process 22514 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22514] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22514] write(4, "78", 2)           = 2
[pid 22514] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22514] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22514] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22515 attached
, child_tidptr=0x555555af35d0) = 22515
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22515] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22515] write(4, "78", 2)           = 2
[pid 22515] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22515] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22515] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22516 attached
, child_tidptr=0x555555af35d0) = 22516
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22516] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22516] write(4, "78", 2)           = 2
[pid 22516] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22516] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22516] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22517 attached
, child_tidptr=0x555555af35d0) = 22517
[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) = 3
[pid 22517] write(3, "1000", 4)         = 4
[pid 22517] close(3)                    = 0
[pid 22517] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22517] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22517] write(4, "78", 2)           = 2
[pid 22517] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22517] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22517] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22518 attached
, child_tidptr=0x555555af35d0) = 22518
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22518] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22518] write(4, "78", 2)           = 2
[pid 22518] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22518] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22518] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22519 attached
, child_tidptr=0x555555af35d0) = 22519
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22519] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22519] write(4, "78", 2)           = 2
[pid 22519] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22519] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22519] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22520 attached
, child_tidptr=0x555555af35d0) = 22520
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22520] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22520] write(4, "78", 2)           = 2
[pid 22520] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22520] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22520] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22521 attached
, child_tidptr=0x555555af35d0) = 22521
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22521] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22521] write(4, "78", 2)           = 2
[pid 22521] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22521] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22521] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22522 attached
, child_tidptr=0x555555af35d0) = 22522
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22522] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22522] write(4, "78", 2)           = 2
[pid 22522] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22522] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22522] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22523
./strace-static-x86_64: Process 22523 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22523] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22523] write(4, "78", 2)           = 2
[pid 22523] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22523] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22523] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22524 attached
, child_tidptr=0x555555af35d0) = 22524
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22524] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22524] write(4, "78", 2)           = 2
[pid 22524] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22524] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22524] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22525 attached
, child_tidptr=0x555555af35d0) = 22525
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22525] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22525] write(4, "78", 2)           = 2
[pid 22525] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22525] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22525] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22526 attached
, child_tidptr=0x555555af35d0) = 22526
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22526] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22526] write(4, "78", 2)           = 2
[pid 22526] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22526] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22526] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22527 attached
, child_tidptr=0x555555af35d0) = 22527
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22527] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22527] write(4, "78", 2)           = 2
[pid 22527] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22527] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22527] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22528 attached
, child_tidptr=0x555555af35d0) = 22528
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22528] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22528] write(4, "78", 2)           = 2
[pid 22528] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22528] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22528] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22529 attached
, child_tidptr=0x555555af35d0) = 22529
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22529] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22529] write(4, "78", 2)           = 2
[pid 22529] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22529] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22529] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22530 attached
, child_tidptr=0x555555af35d0) = 22530
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22530] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22530] write(4, "78", 2)           = 2
[pid 22530] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22530] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22530] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22531 attached
, child_tidptr=0x555555af35d0) = 22531
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22531] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22531] write(4, "78", 2)           = 2
[pid 22531] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22531] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22531] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22532 attached
, child_tidptr=0x555555af35d0) = 22532
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22532] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22532] write(4, "78", 2)           = 2
[pid 22532] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22532] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22532] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22533 attached
, child_tidptr=0x555555af35d0) = 22533
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22533] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22533] write(4, "78", 2)           = 2
[pid 22533] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22533] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22533] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22534 attached
, child_tidptr=0x555555af35d0) = 22534
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22534] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22534] write(4, "78", 2)           = 2
[pid 22534] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22534] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22534] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22535
./strace-static-x86_64: Process 22535 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22535] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22535] write(4, "78", 2)           = 2
[pid 22535] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22535] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22535] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22536 attached
, child_tidptr=0x555555af35d0) = 22536
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22536] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22536] write(4, "78", 2)           = 2
[pid 22536] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22536] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22536] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22537 attached
, child_tidptr=0x555555af35d0) = 22537
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22537] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22537] write(4, "78", 2)           = 2
[pid 22537] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22537] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22537] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22538 attached
, child_tidptr=0x555555af35d0) = 22538
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22538] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22538] write(4, "78", 2)           = 2
[pid 22538] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22538] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22538] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22539 attached
, child_tidptr=0x555555af35d0) = 22539
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22539] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22539] write(4, "78", 2)           = 2
[pid 22539] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22539] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22539] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22540 attached
, child_tidptr=0x555555af35d0) = 22540
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22540] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22540] write(4, "78", 2)           = 2
[pid 22540] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22540] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22540] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22541 attached
, child_tidptr=0x555555af35d0) = 22541
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22541] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22541] write(4, "78", 2)           = 2
[pid 22541] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22541] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22541] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22542 attached
, child_tidptr=0x555555af35d0) = 22542
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22542] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22542] write(4, "78", 2)           = 2
[pid 22542] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22542] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22542] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22543 attached
, child_tidptr=0x555555af35d0) = 22543
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22543] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22543] write(4, "78", 2)           = 2
[pid 22543] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22543] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22543] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22544 attached
, child_tidptr=0x555555af35d0) = 22544
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22544] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22544] write(4, "78", 2)           = 2
[pid 22544] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22544] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22544] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22545 attached
, child_tidptr=0x555555af35d0) = 22545
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22545] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22545] write(4, "78", 2)           = 2
[pid 22545] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22545] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22545] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22546 attached
, child_tidptr=0x555555af35d0) = 22546
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22546] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22546] write(4, "78", 2)           = 2
[pid 22546] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22546] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22546] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22547 attached
, child_tidptr=0x555555af35d0) = 22547
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22547] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22547] write(4, "78", 2)           = 2
[pid 22547] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22547] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22547] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22548 attached
, child_tidptr=0x555555af35d0) = 22548
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22548] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22548] write(4, "78", 2)           = 2
[pid 22548] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22548] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22548] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22549 attached
, child_tidptr=0x555555af35d0) = 22549
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22549] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22549] write(4, "78", 2)           = 2
[pid 22549] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22549] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22549] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22550 attached
, child_tidptr=0x555555af35d0) = 22550
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22550] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22550] write(4, "78", 2)           = 2
[pid 22550] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22550] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22550] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22551
./strace-static-x86_64: Process 22551 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22551] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22551] write(4, "78", 2)           = 2
[pid 22551] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22551] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22551] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22552
./strace-static-x86_64: Process 22552 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22552] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22552] write(4, "78", 2)           = 2
[pid 22552] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22552] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22552] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22553 attached
, child_tidptr=0x555555af35d0) = 22553
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22553] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22553] write(4, "78", 2)           = 2
[pid 22553] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22553] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22553] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22554 attached
, child_tidptr=0x555555af35d0) = 22554
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22554] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22554] write(4, "78", 2)           = 2
[pid 22554] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22554] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22554] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22555
./strace-static-x86_64: Process 22555 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22555] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22555] write(4, "78", 2)           = 2
[pid 22555] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22555] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22555] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22556 attached
, child_tidptr=0x555555af35d0) = 22556
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22556] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22556] write(4, "78", 2)           = 2
[pid 22556] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22556] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22556] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22557 attached
, child_tidptr=0x555555af35d0) = 22557
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22557] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22557] write(4, "78", 2)           = 2
[pid 22557] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22557] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22557] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22558 attached
, child_tidptr=0x555555af35d0) = 22558
[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) = 3
[pid 22558] write(3, "1000", 4)         = 4
[pid 22558] close(3)                    = 0
[pid 22558] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22558] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22558] write(4, "78", 2)           = 2
[pid 22558] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22558] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22558] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22559
./strace-static-x86_64: Process 22559 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22559] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22559] write(4, "78", 2)           = 2
[pid 22559] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22559] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22559] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22560 attached
, child_tidptr=0x555555af35d0) = 22560
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22560] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22560] write(4, "78", 2)           = 2
[pid 22560] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22560] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22560] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22561 attached
, child_tidptr=0x555555af35d0) = 22561
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22561] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22561] write(4, "78", 2)           = 2
[pid 22561] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22561] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22561] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22562 attached
, child_tidptr=0x555555af35d0) = 22562
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22562] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22562] write(4, "78", 2)           = 2
[pid 22562] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22562] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22562] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22563 attached
, child_tidptr=0x555555af35d0) = 22563
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22563] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22563] write(4, "78", 2)           = 2
[pid 22563] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22563] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22563] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22564 attached
, child_tidptr=0x555555af35d0) = 22564
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22564] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22564] write(4, "78", 2)           = 2
[pid 22564] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22564] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22564] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22565 attached
, child_tidptr=0x555555af35d0) = 22565
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22565] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22565] write(4, "78", 2)           = 2
[pid 22565] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22565] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22565] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22566 attached
, child_tidptr=0x555555af35d0) = 22566
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22566] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22566] write(4, "78", 2)           = 2
[pid 22566] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22566] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22566] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22567 attached
, child_tidptr=0x555555af35d0) = 22567
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22567] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22567] write(4, "78", 2)           = 2
[pid 22567] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22567] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22567] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22568 attached
, child_tidptr=0x555555af35d0) = 22568
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22568] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22568] write(4, "78", 2)           = 2
[pid 22568] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22568] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22568] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22569 attached
, child_tidptr=0x555555af35d0) = 22569
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22569] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22569] write(4, "78", 2)           = 2
[pid 22569] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22569] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22569] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22570 attached
, child_tidptr=0x555555af35d0) = 22570
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22570] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22570] write(4, "78", 2)           = 2
[pid 22570] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22570] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22570] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22571 attached
, child_tidptr=0x555555af35d0) = 22571
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22571] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22571] write(4, "78", 2)           = 2
[pid 22571] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22571] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22571] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22572 attached
, child_tidptr=0x555555af35d0) = 22572
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22572] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22572] write(4, "78", 2)           = 2
[pid 22572] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22572] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22572] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22573 attached
, child_tidptr=0x555555af35d0) = 22573
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22573] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22573] write(4, "78", 2)           = 2
[pid 22573] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22573] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22573] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22574 attached
, child_tidptr=0x555555af35d0) = 22574
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22574] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22574] write(4, "78", 2)           = 2
[pid 22574] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22574] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22574] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22575 attached
, child_tidptr=0x555555af35d0) = 22575
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22575] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22575] write(4, "78", 2)           = 2
[pid 22575] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22575] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22575] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22576 attached
, child_tidptr=0x555555af35d0) = 22576
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22576] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22576] write(4, "78", 2)           = 2
[pid 22576] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22576] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22576] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22577 attached
, child_tidptr=0x555555af35d0) = 22577
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22577] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22577] write(4, "78", 2)           = 2
[pid 22577] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22577] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22577] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22578 attached
, child_tidptr=0x555555af35d0) = 22578
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22578] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22578] write(4, "78", 2)           = 2
[pid 22578] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22578] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22578] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22579 attached
, child_tidptr=0x555555af35d0) = 22579
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22579] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22579] write(4, "78", 2)           = 2
[pid 22579] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22579] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22579] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22580 attached
, child_tidptr=0x555555af35d0) = 22580
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22580] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22580] write(4, "78", 2)           = 2
[pid 22580] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22580] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22580] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22581 attached
, child_tidptr=0x555555af35d0) = 22581
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22581] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22581] write(4, "78", 2)           = 2
[pid 22581] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22581] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22581] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22582 attached
, child_tidptr=0x555555af35d0) = 22582
[pid 22582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22582] setpgid(0, 0)               = 0
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22582] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22582] write(4, "78", 2)           = 2
[pid 22582] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22582] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22582] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22583 attached
, child_tidptr=0x555555af35d0) = 22583
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22583] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22583] write(4, "78", 2)           = 2
[pid 22583] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22583] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22583] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22584 attached
, child_tidptr=0x555555af35d0) = 22584
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22584] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22584] write(4, "78", 2)           = 2
[pid 22584] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22584] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22584] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22585 attached
, child_tidptr=0x555555af35d0) = 22585
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22585] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22585] write(4, "78", 2)           = 2
[pid 22585] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22585] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22585] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22586 attached
, child_tidptr=0x555555af35d0) = 22586
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22586] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22586] write(4, "78", 2)           = 2
[pid 22586] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22586] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22586] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22587
./strace-static-x86_64: Process 22587 attached
[pid 22587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22587] setpgid(0, 0)               = 0
[pid 22587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22587] write(3, "1000", 4)         = 4
[pid 22587] close(3)                    = 0
[pid 22587] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22587] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22587] write(4, "78", 2)           = 2
[pid 22587] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22587] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22587] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22587] exit_group(0)               = ?
[pid 22587] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22587, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22588 attached
, child_tidptr=0x555555af35d0) = 22588
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22588] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22588] write(4, "78", 2)           = 2
[pid 22588] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22588] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22588] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22589 attached
, child_tidptr=0x555555af35d0) = 22589
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22589] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22589] write(4, "78", 2)           = 2
[pid 22589] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22589] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22589] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22590 attached
, child_tidptr=0x555555af35d0) = 22590
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22590] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22590] write(4, "78", 2)           = 2
[pid 22590] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22590] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22590] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22591 attached
, child_tidptr=0x555555af35d0) = 22591
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22591] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22591] write(4, "78", 2)           = 2
[pid 22591] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22591] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22591] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22592
./strace-static-x86_64: Process 22592 attached
[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
[pid 22592] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22592] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22592] write(4, "78", 2)           = 2
[pid 22592] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22592] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22592] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22593 attached
, child_tidptr=0x555555af35d0) = 22593
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22593] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22593] write(4, "78", 2)           = 2
[pid 22593] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22593] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22593] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22594 attached
, child_tidptr=0x555555af35d0) = 22594
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22594] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22594] write(4, "78", 2)           = 2
[pid 22594] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22594] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22594] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22595 attached
, child_tidptr=0x555555af35d0) = 22595
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22595] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22595] write(4, "78", 2)           = 2
[pid 22595] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22595] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22595] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22596
./strace-static-x86_64: Process 22596 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22596] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22596] write(4, "78", 2)           = 2
[pid 22596] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22596] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22596] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22597 attached
, child_tidptr=0x555555af35d0) = 22597
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22597] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22597] write(4, "78", 2)           = 2
[pid 22597] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22597] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22597] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22598
./strace-static-x86_64: Process 22598 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22598] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22598] write(4, "78", 2)           = 2
[pid 22598] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22598] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22598] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22599 attached
, child_tidptr=0x555555af35d0) = 22599
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22599] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22599] write(4, "78", 2)           = 2
[pid 22599] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22599] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22599] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22600 attached
, child_tidptr=0x555555af35d0) = 22600
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22600] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22600] write(4, "78", 2)           = 2
[pid 22600] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22600] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22600] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22601 attached
, child_tidptr=0x555555af35d0) = 22601
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22601] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22601] write(4, "78", 2)           = 2
[pid 22601] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22601] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22601] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22602 attached
, child_tidptr=0x555555af35d0) = 22602
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22602] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22602] write(4, "78", 2)           = 2
[pid 22602] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22602] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22602] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22603 attached
, child_tidptr=0x555555af35d0) = 22603
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22603] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22603] write(4, "78", 2)           = 2
[pid 22603] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22603] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22603] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22604
./strace-static-x86_64: Process 22604 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22604] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22604] write(4, "78", 2)           = 2
[pid 22604] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 22604] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22604] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22605 attached
, child_tidptr=0x555555af35d0) = 22605
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22605] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22605] write(4, "78", 2)           = 2
[pid 22605] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22605] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22605] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22606
./strace-static-x86_64: Process 22606 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22606] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22606] write(4, "78", 2)           = 2
[pid 22606] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22606] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22606] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22607 attached
, child_tidptr=0x555555af35d0) = 22607
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22607] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22607] write(4, "78", 2)           = 2
[pid 22607] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22607] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22607] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22608 attached
, child_tidptr=0x555555af35d0) = 22608
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22608] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22608] write(4, "78", 2)           = 2
[pid 22608] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22608] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22608] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22609 attached
, child_tidptr=0x555555af35d0) = 22609
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22609] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22609] write(4, "78", 2)           = 2
[pid 22609] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22609] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22609] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22610 attached
, child_tidptr=0x555555af35d0) = 22610
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22610] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22610] write(4, "78", 2)           = 2
[pid 22610] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22610] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22610] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22611 attached
, child_tidptr=0x555555af35d0) = 22611
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22611] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22611] write(4, "78", 2)           = 2
[pid 22611] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22611] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22611] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22612 attached
, child_tidptr=0x555555af35d0) = 22612
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22612] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22612] write(4, "78", 2)           = 2
[pid 22612] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22612] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22612] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22613
./strace-static-x86_64: Process 22613 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22613] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22613] write(4, "78", 2)           = 2
[pid 22613] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22613] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22613] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22614 attached
, child_tidptr=0x555555af35d0) = 22614
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22614] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22614] write(4, "78", 2)           = 2
[pid 22614] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22614] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22614] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22615
./strace-static-x86_64: Process 22615 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22615] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22615] write(4, "78", 2)           = 2
[pid 22615] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22615] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22615] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22616 attached
, child_tidptr=0x555555af35d0) = 22616
[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
[pid 22616] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22616] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22616] write(4, "78", 2)           = 2
[pid 22616] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22616] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22616] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22617 attached
, child_tidptr=0x555555af35d0) = 22617
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22617] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22617] write(4, "78", 2)           = 2
[pid 22617] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22617] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22617] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22618 attached
, child_tidptr=0x555555af35d0) = 22618
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22618] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22618] write(4, "78", 2)           = 2
[pid 22618] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22618] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22618] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22619 attached
, child_tidptr=0x555555af35d0) = 22619
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22619] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22619] write(4, "78", 2)           = 2
[pid 22619] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22619] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22619] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22620 attached
, child_tidptr=0x555555af35d0) = 22620
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22620] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22620] write(4, "78", 2)           = 2
[pid 22620] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22620] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22620] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22621 attached
, child_tidptr=0x555555af35d0) = 22621
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22621] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22621] write(4, "78", 2)           = 2
[pid 22621] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22621] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22621] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22622 attached
, child_tidptr=0x555555af35d0) = 22622
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22622] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22622] write(4, "78", 2)           = 2
[pid 22622] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22622] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22622] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22623 attached
, child_tidptr=0x555555af35d0) = 22623
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22623] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22623] write(4, "78", 2)           = 2
[pid 22623] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22623] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22623] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22624
./strace-static-x86_64: Process 22624 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22624] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22624] write(4, "78", 2)           = 2
[pid 22624] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22624] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22624] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22625 attached
, child_tidptr=0x555555af35d0) = 22625
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22625] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22625] write(4, "78", 2)           = 2
[pid 22625] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22625] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22625] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22626 attached
, child_tidptr=0x555555af35d0) = 22626
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22626] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22626] write(4, "78", 2)           = 2
[pid 22626] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22626] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22626] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22627 attached
, child_tidptr=0x555555af35d0) = 22627
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22627] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22627] write(4, "78", 2)           = 2
[pid 22627] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22627] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22627] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22628 attached
, child_tidptr=0x555555af35d0) = 22628
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22628] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22628] write(4, "78", 2)           = 2
[pid 22628] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22628] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22628] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22629 attached
, child_tidptr=0x555555af35d0) = 22629
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22629] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22629] write(4, "78", 2)           = 2
[pid 22629] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22629] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22629] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22630
./strace-static-x86_64: Process 22630 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22630] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22630] write(4, "78", 2)           = 2
[pid 22630] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22630] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22630] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22631 attached
, child_tidptr=0x555555af35d0) = 22631
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22631] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22631] write(4, "78", 2)           = 2
[pid 22631] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22631] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22631] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22632 attached
, child_tidptr=0x555555af35d0) = 22632
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22632] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22632] write(4, "78", 2)           = 2
[pid 22632] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22632] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22632] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22633 attached
, child_tidptr=0x555555af35d0) = 22633
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22633] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22633] write(4, "78", 2)           = 2
[pid 22633] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22633] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22633] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22634 attached
, child_tidptr=0x555555af35d0) = 22634
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22634] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22634] write(4, "78", 2)           = 2
[pid 22634] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22634] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22634] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22635 attached
, child_tidptr=0x555555af35d0) = 22635
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22635] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22635] write(4, "78", 2)           = 2
[pid 22635] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22635] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22635] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22636 attached
, child_tidptr=0x555555af35d0) = 22636
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22636] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22636] write(4, "78", 2)           = 2
[pid 22636] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22636] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22636] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22637 attached
, child_tidptr=0x555555af35d0) = 22637
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22637] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22637] write(4, "78", 2)           = 2
[pid 22637] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22637] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22637] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22638 attached
, child_tidptr=0x555555af35d0) = 22638
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22638] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22638] write(4, "78", 2)           = 2
[pid 22638] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22638] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22638] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22639 attached
, child_tidptr=0x555555af35d0) = 22639
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22639] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22639] write(4, "78", 2)           = 2
[pid 22639] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22639] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22639] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22640 attached
, child_tidptr=0x555555af35d0) = 22640
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22640] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22640] write(4, "78", 2)           = 2
[pid 22640] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22640] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22640] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22641 attached
, child_tidptr=0x555555af35d0) = 22641
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22641] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22641] write(4, "78", 2)           = 2
[pid 22641] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22641] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22641] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22642 attached
, child_tidptr=0x555555af35d0) = 22642
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22642] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22642] write(4, "78", 2)           = 2
[pid 22642] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22642] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22642] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22643 attached
, child_tidptr=0x555555af35d0) = 22643
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22643] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22643] write(4, "78", 2)           = 2
[pid 22643] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22643] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22643] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22644
./strace-static-x86_64: Process 22644 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22644] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22644] write(4, "78", 2)           = 2
[pid 22644] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22644] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22644] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22645 attached
, child_tidptr=0x555555af35d0) = 22645
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22645] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22645] write(4, "78", 2)           = 2
[pid 22645] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22645] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22645] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22646
./strace-static-x86_64: Process 22646 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22646] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22646] write(4, "78", 2)           = 2
[pid 22646] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22646] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22646] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22647 attached
, child_tidptr=0x555555af35d0) = 22647
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22647] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22647] write(4, "78", 2)           = 2
[pid 22647] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22647] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22647] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22648 attached
, child_tidptr=0x555555af35d0) = 22648
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22648] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22648] write(4, "78", 2)           = 2
[pid 22648] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22648] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22648] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22649 attached
, child_tidptr=0x555555af35d0) = 22649
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22649] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22649] write(4, "78", 2)           = 2
[pid 22649] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22649] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22649] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22650 attached
, child_tidptr=0x555555af35d0) = 22650
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22650] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22650] write(4, "78", 2)           = 2
[pid 22650] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22650] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22650] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22651 attached
, child_tidptr=0x555555af35d0) = 22651
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22651] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22651] write(4, "78", 2)           = 2
[pid 22651] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22651] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22651] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22652 attached
, child_tidptr=0x555555af35d0) = 22652
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22652] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22652] write(4, "78", 2)           = 2
[pid 22652] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 22652] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22652] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22653 attached
, child_tidptr=0x555555af35d0) = 22653
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22653] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22653] write(4, "78", 2)           = 2
[pid 22653] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22653] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22653] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22654 attached
, child_tidptr=0x555555af35d0) = 22654
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22654] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22654] write(4, "78", 2)           = 2
[pid 22654] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22654] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22654] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22655 attached
, child_tidptr=0x555555af35d0) = 22655
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22655] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22655] write(4, "78", 2)           = 2
[pid 22655] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22655] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22655] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22656
./strace-static-x86_64: Process 22656 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22656] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22656] write(4, "78", 2)           = 2
[pid 22656] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22656] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22656] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22657
./strace-static-x86_64: Process 22657 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22657] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22657] write(4, "78", 2)           = 2
[pid 22657] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22657] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22657] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22658 attached
, child_tidptr=0x555555af35d0) = 22658
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22658] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22658] write(4, "78", 2)           = 2
[pid 22658] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22658] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22658] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22659 attached
, child_tidptr=0x555555af35d0) = 22659
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22659] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22659] write(4, "78", 2)           = 2
[pid 22659] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22659] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22659] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22660 attached
, child_tidptr=0x555555af35d0) = 22660
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22660] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22660] write(4, "78", 2)           = 2
[pid 22660] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22660] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22660] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22661 attached
, child_tidptr=0x555555af35d0) = 22661
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22661] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22661] write(4, "78", 2)           = 2
[pid 22661] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22661] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22661] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22662 attached
, child_tidptr=0x555555af35d0) = 22662
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22662] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22662] write(4, "78", 2)           = 2
[pid 22662] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22662] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22662] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22663
./strace-static-x86_64: Process 22663 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22663] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22663] write(4, "78", 2)           = 2
[pid 22663] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22663] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22663] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22664 attached
, child_tidptr=0x555555af35d0) = 22664
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22664] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22664] write(4, "78", 2)           = 2
[pid 22664] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22664] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22664] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22665 attached
, child_tidptr=0x555555af35d0) = 22665
[pid 22665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22665] setpgid(0, 0)               = 0
[pid 22665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22665] write(3, "1000", 4)         = 4
[pid 22665] close(3)                    = 0
[pid 22665] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22665] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22665] write(4, "78", 2)           = 2
[pid 22665] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22665] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22665] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22665] exit_group(0)               = ?
[pid 22665] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22665, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22666 attached
, child_tidptr=0x555555af35d0) = 22666
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22666] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22666] write(4, "78", 2)           = 2
[pid 22666] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22666] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22666] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22667
./strace-static-x86_64: Process 22667 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22667] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22667] write(4, "78", 2)           = 2
[pid 22667] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22667] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22667] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22668 attached
, child_tidptr=0x555555af35d0) = 22668
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22668] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22668] write(4, "78", 2)           = 2
[pid 22668] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22668] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22668] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22669 attached
, child_tidptr=0x555555af35d0) = 22669
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22669] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22669] write(4, "78", 2)           = 2
[pid 22669] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22669] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22669] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22670 attached
, child_tidptr=0x555555af35d0) = 22670
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22670] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22670] write(4, "78", 2)           = 2
[pid 22670] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 22670] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22670] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22671 attached
, child_tidptr=0x555555af35d0) = 22671
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22671] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22671] write(4, "78", 2)           = 2
[pid 22671] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22671] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22671] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22672 attached
, child_tidptr=0x555555af35d0) = 22672
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22672] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22672] write(4, "78", 2)           = 2
[pid 22672] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22672] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22672] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22673 attached
, child_tidptr=0x555555af35d0) = 22673
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22673] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22673] write(4, "78", 2)           = 2
[pid 22673] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22673] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22673] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22674
./strace-static-x86_64: Process 22674 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22674] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22674] write(4, "78", 2)           = 2
[pid 22674] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22674] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22674] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22675 attached
, child_tidptr=0x555555af35d0) = 22675
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22675] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22675] write(4, "78", 2)           = 2
[pid 22675] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22675] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22675] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22676 attached
, child_tidptr=0x555555af35d0) = 22676
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22676] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22676] write(4, "78", 2)           = 2
[pid 22676] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22676] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22676] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22677 attached
, child_tidptr=0x555555af35d0) = 22677
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22677] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22677] write(4, "78", 2)           = 2
[pid 22677] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22677] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22677] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22678 attached
, child_tidptr=0x555555af35d0) = 22678
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22678] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22678] write(4, "78", 2)           = 2
[pid 22678] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22678] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22678] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22679
./strace-static-x86_64: Process 22679 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22679] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22679] write(4, "78", 2)           = 2
[pid 22679] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22679] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22679] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22680 attached
, child_tidptr=0x555555af35d0) = 22680
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22680] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22680] write(4, "78", 2)           = 2
[pid 22680] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22680] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22680] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22681 attached
, child_tidptr=0x555555af35d0) = 22681
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22681] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22681] write(4, "78", 2)           = 2
[pid 22681] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22681] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22681] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22682 attached
, child_tidptr=0x555555af35d0) = 22682
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22682] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22682] write(4, "78", 2)           = 2
[pid 22682] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22682] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22682] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22683 attached
, child_tidptr=0x555555af35d0) = 22683
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22683] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22683] write(4, "78", 2)           = 2
[pid 22683] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22683] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22683] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22684 attached
, child_tidptr=0x555555af35d0) = 22684
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22684] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22684] write(4, "78", 2)           = 2
[pid 22684] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22684] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22684] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22685 attached
, child_tidptr=0x555555af35d0) = 22685
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22685] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22685] write(4, "78", 2)           = 2
[pid 22685] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22685] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22685] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22686 attached
, child_tidptr=0x555555af35d0) = 22686
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22686] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22686] write(4, "78", 2)           = 2
[pid 22686] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22686] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22686] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22687 attached
, child_tidptr=0x555555af35d0) = 22687
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22687] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22687] write(4, "78", 2)           = 2
[pid 22687] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22687] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22687] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22688 attached
, child_tidptr=0x555555af35d0) = 22688
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22688] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22688] write(4, "78", 2)           = 2
[pid 22688] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22688] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22688] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22689
./strace-static-x86_64: Process 22689 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22689] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22689] write(4, "78", 2)           = 2
[pid 22689] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22689] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22689] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22690 attached
, child_tidptr=0x555555af35d0) = 22690
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22690] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22690] write(4, "78", 2)           = 2
[pid 22690] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22690] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22690] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22691 attached
, child_tidptr=0x555555af35d0) = 22691
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22691] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22691] write(4, "78", 2)           = 2
[pid 22691] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22691] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22691] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22692
./strace-static-x86_64: Process 22692 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22692] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22692] write(4, "78", 2)           = 2
[pid 22692] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22692] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22692] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22693 attached
, child_tidptr=0x555555af35d0) = 22693
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22693] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22693] write(4, "78", 2)           = 2
[pid 22693] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22693] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22693] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22694 attached
, child_tidptr=0x555555af35d0) = 22694
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22694] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22694] write(4, "78", 2)           = 2
[pid 22694] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22694] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22694] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22695 attached
, child_tidptr=0x555555af35d0) = 22695
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22695] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22695] write(4, "78", 2)           = 2
[pid 22695] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22695] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22695] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22696 attached
, child_tidptr=0x555555af35d0) = 22696
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22696] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22696] write(4, "78", 2)           = 2
[pid 22696] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22696] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22696] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22697 attached
, child_tidptr=0x555555af35d0) = 22697
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22697] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22697] write(4, "78", 2)           = 2
[pid 22697] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22697] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22697] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22698 attached
, child_tidptr=0x555555af35d0) = 22698
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22698] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22698] write(4, "78", 2)           = 2
[pid 22698] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22698] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22698] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22699
./strace-static-x86_64: Process 22699 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22699] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22699] write(4, "78", 2)           = 2
[pid 22699] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22699] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22699] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22700 attached
, child_tidptr=0x555555af35d0) = 22700
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22700] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22700] write(4, "78", 2)           = 2
[pid 22700] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22700] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22700] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22701 attached
, child_tidptr=0x555555af35d0) = 22701
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22701] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22701] write(4, "78", 2)           = 2
[pid 22701] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22701] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22701] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22702 attached
, child_tidptr=0x555555af35d0) = 22702
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22702] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22702] write(4, "78", 2)           = 2
[pid 22702] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22702] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22702] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22703 attached
, child_tidptr=0x555555af35d0) = 22703
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22703] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22703] write(4, "78", 2)           = 2
[pid 22703] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22703] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22703] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22704 attached
, child_tidptr=0x555555af35d0) = 22704
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22704] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22704] write(4, "78", 2)           = 2
[pid 22704] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22704] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22704] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22705
./strace-static-x86_64: Process 22705 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22705] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22705] write(4, "78", 2)           = 2
[pid 22705] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22705] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22705] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22706 attached
, child_tidptr=0x555555af35d0) = 22706
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22706] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22706] write(4, "78", 2)           = 2
[pid 22706] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22706] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22706] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22707 attached
, child_tidptr=0x555555af35d0) = 22707
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22707] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22707] write(4, "78", 2)           = 2
[pid 22707] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22707] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22707] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22708 attached
, child_tidptr=0x555555af35d0) = 22708
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22708] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22708] write(4, "78", 2)           = 2
[pid 22708] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22708] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22708] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22709 attached
, child_tidptr=0x555555af35d0) = 22709
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22709] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22709] write(4, "78", 2)           = 2
[pid 22709] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22709] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22709] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22710
./strace-static-x86_64: Process 22710 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22710] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22710] write(4, "78", 2)           = 2
[pid 22710] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22710] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22710] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22711 attached
, child_tidptr=0x555555af35d0) = 22711
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22711] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22711] write(4, "78", 2)           = 2
[pid 22711] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22711] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22711] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22712 attached
, child_tidptr=0x555555af35d0) = 22712
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22712] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22712] write(4, "78", 2)           = 2
[pid 22712] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22712] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22712] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22713 attached
, child_tidptr=0x555555af35d0) = 22713
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22713] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22713] write(4, "78", 2)           = 2
[pid 22713] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22713] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22713] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22714 attached
, child_tidptr=0x555555af35d0) = 22714
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22714] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22714] write(4, "78", 2)           = 2
[pid 22714] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22714] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22714] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22715 attached
, child_tidptr=0x555555af35d0) = 22715
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22715] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22715] write(4, "78", 2)           = 2
[pid 22715] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22715] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22715] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22716 attached
, child_tidptr=0x555555af35d0) = 22716
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22716] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22716] write(4, "78", 2)           = 2
[pid 22716] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22716] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22716] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22717
./strace-static-x86_64: Process 22717 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22717] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22717] write(4, "78", 2)           = 2
[pid 22717] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22717] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22717] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22718
./strace-static-x86_64: Process 22718 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22718] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22718] write(4, "78", 2)           = 2
[pid 22718] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22718] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22718] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22719 attached
, child_tidptr=0x555555af35d0) = 22719
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22719] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22719] write(4, "78", 2)           = 2
[pid 22719] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22719] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22719] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22720
./strace-static-x86_64: Process 22720 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22720] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22720] write(4, "78", 2)           = 2
[pid 22720] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22720] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22720] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22721
./strace-static-x86_64: Process 22721 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22721] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22721] write(4, "78", 2)           = 2
[pid 22721] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22721] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22721] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22722 attached
, child_tidptr=0x555555af35d0) = 22722
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22722] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22722] write(4, "78", 2)           = 2
[pid 22722] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22722] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22722] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22723 attached
, child_tidptr=0x555555af35d0) = 22723
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22723] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22723] write(4, "78", 2)           = 2
[pid 22723] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22723] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22723] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22724
./strace-static-x86_64: Process 22724 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22724] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22724] write(4, "78", 2)           = 2
[pid 22724] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22724] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22724] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22725 attached
, child_tidptr=0x555555af35d0) = 22725
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22725] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22725] write(4, "78", 2)           = 2
[pid 22725] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22725] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22725] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22726 attached
, child_tidptr=0x555555af35d0) = 22726
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22726] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22726] write(4, "78", 2)           = 2
[pid 22726] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22726] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22726] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22727 attached
, child_tidptr=0x555555af35d0) = 22727
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22727] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22727] write(4, "78", 2)           = 2
[pid 22727] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22727] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22727] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22728 attached
, child_tidptr=0x555555af35d0) = 22728
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22728] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22728] write(4, "78", 2)           = 2
[pid 22728] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22728] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22728] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22729 attached
, child_tidptr=0x555555af35d0) = 22729
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22729] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22729] write(4, "78", 2)           = 2
[pid 22729] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22729] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22729] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22730
./strace-static-x86_64: Process 22730 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22730] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22730] write(4, "78", 2)           = 2
[pid 22730] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22730] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22730] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22731
./strace-static-x86_64: Process 22731 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22731] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22731] write(4, "78", 2)           = 2
[pid 22731] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22731] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22731] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22732 attached
, child_tidptr=0x555555af35d0) = 22732
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22732] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22732] write(4, "78", 2)           = 2
[pid 22732] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22732] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22732] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22733 attached
, child_tidptr=0x555555af35d0) = 22733
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22733] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22733] write(4, "78", 2)           = 2
[pid 22733] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22733] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22733] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22734 attached
, child_tidptr=0x555555af35d0) = 22734
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22734] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22734] write(4, "78", 2)           = 2
[pid 22734] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22734] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22734] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22735 attached
, child_tidptr=0x555555af35d0) = 22735
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22735] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22735] write(4, "78", 2)           = 2
[pid 22735] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22735] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22735] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22736 attached
, child_tidptr=0x555555af35d0) = 22736
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22736] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22736] write(4, "78", 2)           = 2
[pid 22736] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22736] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22736] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22737 attached
, child_tidptr=0x555555af35d0) = 22737
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22737] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22737] write(4, "78", 2)           = 2
[pid 22737] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22737] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22737] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22738 attached
, child_tidptr=0x555555af35d0) = 22738
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22738] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22738] write(4, "78", 2)           = 2
[pid 22738] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22738] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22738] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22739 attached
, child_tidptr=0x555555af35d0) = 22739
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22739] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22739] write(4, "78", 2)           = 2
[pid 22739] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22739] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22739] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22740 attached
, child_tidptr=0x555555af35d0) = 22740
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22740] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22740] write(4, "78", 2)           = 2
[pid 22740] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22740] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22740] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22741 attached
, child_tidptr=0x555555af35d0) = 22741
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22741] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22741] write(4, "78", 2)           = 2
[pid 22741] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22741] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22741] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22742 attached
, child_tidptr=0x555555af35d0) = 22742
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22742] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22742] write(4, "78", 2)           = 2
[pid 22742] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22742] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22742] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22743 attached
, child_tidptr=0x555555af35d0) = 22743
[pid 22743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22743] setpgid(0, 0)               = 0
[pid 22743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22743] write(3, "1000", 4)         = 4
[pid 22743] close(3)                    = 0
[pid 22743] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22743] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22743] write(4, "78", 2)           = 2
[pid 22743] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22743] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22743] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22743] exit_group(0)               = ?
[pid 22743] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22743, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22744 attached
, child_tidptr=0x555555af35d0) = 22744
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22744] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22744] write(4, "78", 2)           = 2
[pid 22744] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22744] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22744] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22745 attached
, child_tidptr=0x555555af35d0) = 22745
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22745] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22745] write(4, "78", 2)           = 2
[pid 22745] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22745] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22745] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22746 attached
, child_tidptr=0x555555af35d0) = 22746
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22746] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22746] write(4, "78", 2)           = 2
[pid 22746] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22746] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22746] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22747 attached
, child_tidptr=0x555555af35d0) = 22747
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22747] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22747] write(4, "78", 2)           = 2
[pid 22747] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22747] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22747] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22748 attached
, child_tidptr=0x555555af35d0) = 22748
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22748] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22748] write(4, "78", 2)           = 2
[pid 22748] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22748] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22748] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22749 attached
, child_tidptr=0x555555af35d0) = 22749
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22749] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22749] write(4, "78", 2)           = 2
[pid 22749] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22749] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22749] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22750 attached
, child_tidptr=0x555555af35d0) = 22750
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22750] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22750] write(4, "78", 2)           = 2
[pid 22750] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22750] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22750] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22751 attached
, child_tidptr=0x555555af35d0) = 22751
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22751] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22751] write(4, "78", 2)           = 2
[pid 22751] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22751] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22751] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22752 attached
, child_tidptr=0x555555af35d0) = 22752
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22752] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22752] write(4, "78", 2)           = 2
[pid 22752] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22752] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22752] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22753 attached
, child_tidptr=0x555555af35d0) = 22753
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22753] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22753] write(4, "78", 2)           = 2
[pid 22753] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22753] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22753] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22754 attached
, child_tidptr=0x555555af35d0) = 22754
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22754] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22754] write(4, "78", 2)           = 2
[pid 22754] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22754] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22754] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22755
./strace-static-x86_64: Process 22755 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22755] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22755] write(4, "78", 2)           = 2
[pid 22755] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22755] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22755] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22756 attached
, child_tidptr=0x555555af35d0) = 22756
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22756] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22756] write(4, "78", 2)           = 2
[pid 22756] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22756] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22756] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22757 attached
, child_tidptr=0x555555af35d0) = 22757
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22757] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22757] write(4, "78", 2)           = 2
[pid 22757] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22757] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22757] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22758 attached
, child_tidptr=0x555555af35d0) = 22758
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22758] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22758] write(4, "78", 2)           = 2
[pid 22758] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22758] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22758] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22759 attached
, child_tidptr=0x555555af35d0) = 22759
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22759] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22759] write(4, "78", 2)           = 2
[pid 22759] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22759] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22759] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22760 attached
, child_tidptr=0x555555af35d0) = 22760
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22760] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22760] write(4, "78", 2)           = 2
[pid 22760] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22760] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22760] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22761 attached
, child_tidptr=0x555555af35d0) = 22761
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22761] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22761] write(4, "78", 2)           = 2
[pid 22761] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22761] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22761] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22762 attached
, child_tidptr=0x555555af35d0) = 22762
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22762] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22762] write(4, "78", 2)           = 2
[pid 22762] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22762] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22762] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22763 attached
, child_tidptr=0x555555af35d0) = 22763
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22763] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22763] write(4, "78", 2)           = 2
[pid 22763] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22763] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22763] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22764 attached
, child_tidptr=0x555555af35d0) = 22764
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22764] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22764] write(4, "78", 2)           = 2
[pid 22764] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22764] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22764] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22765 attached
, child_tidptr=0x555555af35d0) = 22765
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22765] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22765] write(4, "78", 2)           = 2
[pid 22765] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22765] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22765] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22766
./strace-static-x86_64: Process 22766 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22766] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22766] write(4, "78", 2)           = 2
[pid 22766] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22766] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22766] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22767
./strace-static-x86_64: Process 22767 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22767] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22767] write(4, "78", 2)           = 2
[pid 22767] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22767] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22767] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22768 attached
, child_tidptr=0x555555af35d0) = 22768
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22768] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22768] write(4, "78", 2)           = 2
[pid 22768] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22768] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22768] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22769 attached
, child_tidptr=0x555555af35d0) = 22769
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22769] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22769] write(4, "78", 2)           = 2
[pid 22769] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22769] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22769] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22770 attached
, child_tidptr=0x555555af35d0) = 22770
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22770] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22770] write(4, "78", 2)           = 2
[pid 22770] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22770] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22770] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22771
./strace-static-x86_64: Process 22771 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22771] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22771] write(4, "78", 2)           = 2
[pid 22771] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22771] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22771] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22772 attached
, child_tidptr=0x555555af35d0) = 22772
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22772] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22772] write(4, "78", 2)           = 2
[pid 22772] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22772] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22772] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22773 attached
, child_tidptr=0x555555af35d0) = 22773
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22773] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22773] write(4, "78", 2)           = 2
[pid 22773] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22773] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22773] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22774
./strace-static-x86_64: Process 22774 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22774] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22774] write(4, "78", 2)           = 2
[pid 22774] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22774] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22774] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22775 attached
, child_tidptr=0x555555af35d0) = 22775
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22775] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22775] write(4, "78", 2)           = 2
[pid 22775] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22775] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22775] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22776 attached
, child_tidptr=0x555555af35d0) = 22776
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22776] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22776] write(4, "78", 2)           = 2
[pid 22776] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22776] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22776] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22777 attached
, child_tidptr=0x555555af35d0) = 22777
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22777] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22777] write(4, "78", 2)           = 2
[pid 22777] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22777] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22777] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22778
./strace-static-x86_64: Process 22778 attached
[pid 22778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22778] setpgid(0, 0)               = 0
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22778] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22778] write(4, "78", 2)           = 2
[pid 22778] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22778] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22778] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22779 attached
, child_tidptr=0x555555af35d0) = 22779
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22779] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22779] write(4, "78", 2)           = 2
[pid 22779] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22779] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22779] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22780 attached
, child_tidptr=0x555555af35d0) = 22780
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22780] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22780] write(4, "78", 2)           = 2
[pid 22780] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22780] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22780] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22781 attached
, child_tidptr=0x555555af35d0) = 22781
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22781] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22781] write(4, "78", 2)           = 2
[pid 22781] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22781] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22781] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22782 attached
, child_tidptr=0x555555af35d0) = 22782
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22782] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22782] write(4, "78", 2)           = 2
[pid 22782] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22782] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22782] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22783 attached
, child_tidptr=0x555555af35d0) = 22783
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22783] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22783] write(4, "78", 2)           = 2
[pid 22783] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22783] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22783] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22784
./strace-static-x86_64: Process 22784 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22784] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22784] write(4, "78", 2)           = 2
[pid 22784] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22784] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22784] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22785
./strace-static-x86_64: Process 22785 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22785] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22785] write(4, "78", 2)           = 2
[pid 22785] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22785] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22785] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22786 attached
, child_tidptr=0x555555af35d0) = 22786
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22786] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22786] write(4, "78", 2)           = 2
[pid 22786] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22786] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22786] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22787 attached
, child_tidptr=0x555555af35d0) = 22787
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22787] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22787] write(4, "78", 2)           = 2
[pid 22787] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22787] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22787] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22788 attached
, child_tidptr=0x555555af35d0) = 22788
[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
[pid 22788] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22788] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22788] write(4, "78", 2)           = 2
[pid 22788] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22788] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22788] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22789 attached
, child_tidptr=0x555555af35d0) = 22789
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22789] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22789] write(4, "78", 2)           = 2
[pid 22789] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22789] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22789] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22790
./strace-static-x86_64: Process 22790 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22790] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22790] write(4, "78", 2)           = 2
[pid 22790] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22790] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22790] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22791 attached
, child_tidptr=0x555555af35d0) = 22791
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22791] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22791] write(4, "78", 2)           = 2
[pid 22791] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22791] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22791] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22792
./strace-static-x86_64: Process 22792 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22792] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22792] write(4, "78", 2)           = 2
[pid 22792] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22792] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22792] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22793 attached
, child_tidptr=0x555555af35d0) = 22793
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22793] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22793] write(4, "78", 2)           = 2
[pid 22793] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22793] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22793] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22794 attached
, child_tidptr=0x555555af35d0) = 22794
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22794] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22794] write(4, "78", 2)           = 2
[pid 22794] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22794] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22794] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22795 attached
, child_tidptr=0x555555af35d0) = 22795
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22795] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22795] write(4, "78", 2)           = 2
[pid 22795] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22795] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22795] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22796 attached
, child_tidptr=0x555555af35d0) = 22796
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22796] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22796] write(4, "78", 2)           = 2
[pid 22796] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22796] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22796] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22797 attached
, child_tidptr=0x555555af35d0) = 22797
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22797] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22797] write(4, "78", 2)           = 2
[pid 22797] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22797] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22797] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22798
./strace-static-x86_64: Process 22798 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22798] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22798] write(4, "78", 2)           = 2
[pid 22798] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22798] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22798] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22799 attached
, child_tidptr=0x555555af35d0) = 22799
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22799] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22799] write(4, "78", 2)           = 2
[pid 22799] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22799] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22799] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22800 attached
, child_tidptr=0x555555af35d0) = 22800
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22800] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22800] write(4, "78", 2)           = 2
[pid 22800] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22800] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22800] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22801 attached
, child_tidptr=0x555555af35d0) = 22801
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22801] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22801] write(4, "78", 2)           = 2
[pid 22801] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22801] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22801] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22802 attached
, child_tidptr=0x555555af35d0) = 22802
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22802] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22802] write(4, "78", 2)           = 2
[pid 22802] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22802] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22802] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22803
./strace-static-x86_64: Process 22803 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22803] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22803] write(4, "78", 2)           = 2
[pid 22803] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22803] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22803] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22804 attached
, child_tidptr=0x555555af35d0) = 22804
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22804] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22804] write(4, "78", 2)           = 2
[pid 22804] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22804] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22804] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22805 attached
, child_tidptr=0x555555af35d0) = 22805
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22805] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22805] write(4, "78", 2)           = 2
[pid 22805] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22805] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22805] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22806 attached
, child_tidptr=0x555555af35d0) = 22806
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22806] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22806] write(4, "78", 2)           = 2
[pid 22806] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22806] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22806] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22807 attached
, child_tidptr=0x555555af35d0) = 22807
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22807] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22807] write(4, "78", 2)           = 2
[pid 22807] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22807] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22807] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22808
./strace-static-x86_64: Process 22808 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22808] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22808] write(4, "78", 2)           = 2
[pid 22808] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22808] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22808] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22809 attached
, child_tidptr=0x555555af35d0) = 22809
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22809] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22809] write(4, "78", 2)           = 2
[pid 22809] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22809] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22809] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22810 attached
, child_tidptr=0x555555af35d0) = 22810
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22810] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22810] write(4, "78", 2)           = 2
[pid 22810] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22810] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22810] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22811 attached
, child_tidptr=0x555555af35d0) = 22811
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22811] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22811] write(4, "78", 2)           = 2
[pid 22811] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22811] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22811] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22812 attached
, child_tidptr=0x555555af35d0) = 22812
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22812] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22812] write(4, "78", 2)           = 2
[pid 22812] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22812] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22812] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22813 attached
, child_tidptr=0x555555af35d0) = 22813
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22813] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22813] write(4, "78", 2)           = 2
[pid 22813] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22813] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22813] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22814 attached
, child_tidptr=0x555555af35d0) = 22814
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22814] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22814] write(4, "78", 2)           = 2
[pid 22814] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22814] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22814] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22815 attached
, child_tidptr=0x555555af35d0) = 22815
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22815] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22815] write(4, "78", 2)           = 2
[pid 22815] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22815] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22815] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22816 attached
, child_tidptr=0x555555af35d0) = 22816
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22816] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22816] write(4, "78", 2)           = 2
[pid 22816] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22816] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22816] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22817 attached
, child_tidptr=0x555555af35d0) = 22817
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22817] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22817] write(4, "78", 2)           = 2
[pid 22817] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22817] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22817] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22818 attached
, child_tidptr=0x555555af35d0) = 22818
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22818] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22818] write(4, "78", 2)           = 2
[pid 22818] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22818] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22818] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22819 attached
, child_tidptr=0x555555af35d0) = 22819
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22819] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22819] write(4, "78", 2)           = 2
[pid 22819] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22819] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22819] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22820
./strace-static-x86_64: Process 22820 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22820] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22820] write(4, "78", 2)           = 2
[pid 22820] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22820] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22820] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22821 attached
, child_tidptr=0x555555af35d0) = 22821
[pid 22821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22821] setpgid(0, 0)               = 0
[pid 22821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22821] write(3, "1000", 4)         = 4
[pid 22821] close(3)                    = 0
[pid 22821] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22821] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22821] write(4, "78", 2)           = 2
[pid 22821] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22821] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22821] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22821] exit_group(0)               = ?
[pid 22821] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22821, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22822 attached
, child_tidptr=0x555555af35d0) = 22822
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22822] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22822] write(4, "78", 2)           = 2
[pid 22822] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22822] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22822] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22823 attached
, child_tidptr=0x555555af35d0) = 22823
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22823] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22823] write(4, "78", 2)           = 2
[pid 22823] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22823] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22823] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22824 attached
, child_tidptr=0x555555af35d0) = 22824
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22824] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22824] write(4, "78", 2)           = 2
[pid 22824] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22824] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22824] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22825 attached
, child_tidptr=0x555555af35d0) = 22825
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22825] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22825] write(4, "78", 2)           = 2
[pid 22825] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22825] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22825] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22826 attached
, child_tidptr=0x555555af35d0) = 22826
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22826] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22826] write(4, "78", 2)           = 2
[pid 22826] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22826] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22826] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22827 attached
, child_tidptr=0x555555af35d0) = 22827
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22827] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22827] write(4, "78", 2)           = 2
[pid 22827] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22827] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22827] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22828 attached
, child_tidptr=0x555555af35d0) = 22828
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22828] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22828] write(4, "78", 2)           = 2
[pid 22828] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22828] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22828] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22829 attached
, child_tidptr=0x555555af35d0) = 22829
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22829] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22829] write(4, "78", 2)           = 2
[pid 22829] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22829] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22829] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22830 attached
, child_tidptr=0x555555af35d0) = 22830
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22830] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22830] write(4, "78", 2)           = 2
[pid 22830] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22830] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22830] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22831 attached
, child_tidptr=0x555555af35d0) = 22831
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22831] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22831] write(4, "78", 2)           = 2
[pid 22831] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22831] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22831] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22832 attached
, child_tidptr=0x555555af35d0) = 22832
[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) = 3
[pid 22832] write(3, "1000", 4)         = 4
[pid 22832] close(3)                    = 0
[pid 22832] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22832] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22832] write(4, "78", 2)           = 2
[pid 22832] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22832] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22832] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22833 attached
, child_tidptr=0x555555af35d0) = 22833
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22833] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22833] write(4, "78", 2)           = 2
[pid 22833] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22833] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22833] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22834 attached
, child_tidptr=0x555555af35d0) = 22834
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22834] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22834] write(4, "78", 2)           = 2
[pid 22834] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22834] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22834] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22835
./strace-static-x86_64: Process 22835 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22835] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22835] write(4, "78", 2)           = 2
[pid 22835] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22835] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22835] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22836 attached
, child_tidptr=0x555555af35d0) = 22836
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22836] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22836] write(4, "78", 2)           = 2
[pid 22836] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22836] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22836] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22837 attached
, child_tidptr=0x555555af35d0) = 22837
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22837] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22837] write(4, "78", 2)           = 2
[pid 22837] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22837] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22837] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22838
./strace-static-x86_64: Process 22838 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22838] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22838] write(4, "78", 2)           = 2
[pid 22838] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22838] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22838] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22839
./strace-static-x86_64: Process 22839 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22839] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22839] write(4, "78", 2)           = 2
[pid 22839] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22839] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22839] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22840 attached
, child_tidptr=0x555555af35d0) = 22840
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22840] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22840] write(4, "78", 2)           = 2
[pid 22840] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 22840] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22840] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22841 attached
, child_tidptr=0x555555af35d0) = 22841
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22841] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22841] write(4, "78", 2)           = 2
[pid 22841] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22841] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22841] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22842 attached
, child_tidptr=0x555555af35d0) = 22842
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22842] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22842] write(4, "78", 2)           = 2
[pid 22842] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22842] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22842] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22843 attached
, child_tidptr=0x555555af35d0) = 22843
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22843] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22843] write(4, "78", 2)           = 2
[pid 22843] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22843] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22843] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22844 attached
, child_tidptr=0x555555af35d0) = 22844
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22844] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22844] write(4, "78", 2)           = 2
[pid 22844] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22844] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22844] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22845 attached
, child_tidptr=0x555555af35d0) = 22845
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22845] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22845] write(4, "78", 2)           = 2
[pid 22845] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22845] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22845] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22846 attached
, child_tidptr=0x555555af35d0) = 22846
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22846] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22846] write(4, "78", 2)           = 2
[pid 22846] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22846] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22846] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22847
./strace-static-x86_64: Process 22847 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22847] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22847] write(4, "78", 2)           = 2
[pid 22847] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22847] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22847] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22848 attached
, child_tidptr=0x555555af35d0) = 22848
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22848] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22848] write(4, "78", 2)           = 2
[pid 22848] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22848] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22848] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22849 attached
, child_tidptr=0x555555af35d0) = 22849
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22849] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22849] write(4, "78", 2)           = 2
[pid 22849] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22849] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22849] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22850 attached
, child_tidptr=0x555555af35d0) = 22850
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22850] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22850] write(4, "78", 2)           = 2
[pid 22850] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22850] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22850] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22851
./strace-static-x86_64: Process 22851 attached
[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
[pid 22851] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22851] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22851] write(4, "78", 2)           = 2
[pid 22851] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22851] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22851] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22852 attached
, child_tidptr=0x555555af35d0) = 22852
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22852] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22852] write(4, "78", 2)           = 2
[pid 22852] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22852] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22852] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22853
./strace-static-x86_64: Process 22853 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22853] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22853] write(4, "78", 2)           = 2
[pid 22853] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22853] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22853] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22854 attached
, child_tidptr=0x555555af35d0) = 22854
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22854] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22854] write(4, "78", 2)           = 2
[pid 22854] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22854] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22854] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22855 attached
, child_tidptr=0x555555af35d0) = 22855
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22855] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22855] write(4, "78", 2)           = 2
[pid 22855] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22855] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22855] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22856 attached
, child_tidptr=0x555555af35d0) = 22856
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22856] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22856] write(4, "78", 2)           = 2
[pid 22856] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22856] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22856] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22857 attached
, child_tidptr=0x555555af35d0) = 22857
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22857] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22857] write(4, "78", 2)           = 2
[pid 22857] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22857] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22857] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22858 attached
, child_tidptr=0x555555af35d0) = 22858
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22858] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22858] write(4, "78", 2)           = 2
[pid 22858] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22858] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22858] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22859 attached
, child_tidptr=0x555555af35d0) = 22859
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22859] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22859] write(4, "78", 2)           = 2
[pid 22859] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22859] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22859] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22860 attached
, child_tidptr=0x555555af35d0) = 22860
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22860] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22860] write(4, "78", 2)           = 2
[pid 22860] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22860] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22860] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22861 attached
, child_tidptr=0x555555af35d0) = 22861
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22861] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22861] write(4, "78", 2)           = 2
[pid 22861] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22861] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22861] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22862 attached
, child_tidptr=0x555555af35d0) = 22862
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22862] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22862] write(4, "78", 2)           = 2
[pid 22862] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22862] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22862] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22863 attached
, child_tidptr=0x555555af35d0) = 22863
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22863] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22863] write(4, "78", 2)           = 2
[pid 22863] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22863] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22863] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22864 attached
, child_tidptr=0x555555af35d0) = 22864
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22864] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22864] write(4, "78", 2)           = 2
[pid 22864] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22864] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22864] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22865
./strace-static-x86_64: Process 22865 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22865] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22865] write(4, "78", 2)           = 2
[pid 22865] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22865] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22865] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22866 attached
, child_tidptr=0x555555af35d0) = 22866
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22866] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22866] write(4, "78", 2)           = 2
[pid 22866] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22866] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22866] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22867 attached
, child_tidptr=0x555555af35d0) = 22867
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22867] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22867] write(4, "78", 2)           = 2
[pid 22867] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22867] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22867] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22868 attached
, child_tidptr=0x555555af35d0) = 22868
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22868] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22868] write(4, "78", 2)           = 2
[pid 22868] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22868] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22868] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22869 attached
, child_tidptr=0x555555af35d0) = 22869
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22869] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22869] write(4, "78", 2)           = 2
[pid 22869] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22869] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22869] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22870 attached
, child_tidptr=0x555555af35d0) = 22870
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22870] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22870] write(4, "78", 2)           = 2
[pid 22870] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22870] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22870] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22871 attached
, child_tidptr=0x555555af35d0) = 22871
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22871] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22871] write(4, "78", 2)           = 2
[pid 22871] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22871] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22871] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22872 attached
, child_tidptr=0x555555af35d0) = 22872
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22872] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22872] write(4, "78", 2)           = 2
[pid 22872] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22872] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22872] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22873 attached
, child_tidptr=0x555555af35d0) = 22873
[pid 22873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22873] setpgid(0, 0)               = 0
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22873] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22873] write(4, "78", 2)           = 2
[pid 22873] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22873] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22873] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22874 attached
, child_tidptr=0x555555af35d0) = 22874
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22874] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22874] write(4, "78", 2)           = 2
[pid 22874] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22874] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22874] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22875 attached
, child_tidptr=0x555555af35d0) = 22875
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22875] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22875] write(4, "78", 2)           = 2
[pid 22875] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22875] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22875] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22876 attached
, child_tidptr=0x555555af35d0) = 22876
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22876] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22876] write(4, "78", 2)           = 2
[pid 22876] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22876] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22876] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22877 attached
, child_tidptr=0x555555af35d0) = 22877
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22877] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22877] write(4, "78", 2)           = 2
[pid 22877] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22877] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22877] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22878 attached
, child_tidptr=0x555555af35d0) = 22878
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22878] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22878] write(4, "78", 2)           = 2
[pid 22878] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22878] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22878] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22879 attached
, child_tidptr=0x555555af35d0) = 22879
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22879] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22879] write(4, "78", 2)           = 2
[pid 22879] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22879] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22879] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22880 attached
, child_tidptr=0x555555af35d0) = 22880
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22880] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22880] write(4, "78", 2)           = 2
[pid 22880] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22880] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22880] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22881 attached
, child_tidptr=0x555555af35d0) = 22881
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22881] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22881] write(4, "78", 2)           = 2
[pid 22881] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22881] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22881] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22882 attached
, child_tidptr=0x555555af35d0) = 22882
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22882] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22882] write(4, "78", 2)           = 2
[pid 22882] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22882] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22882] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22883 attached
, child_tidptr=0x555555af35d0) = 22883
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22883] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22883] write(4, "78", 2)           = 2
[pid 22883] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22883] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22883] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22884 attached
, child_tidptr=0x555555af35d0) = 22884
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22884] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22884] write(4, "78", 2)           = 2
[pid 22884] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22884] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22884] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22885 attached
, child_tidptr=0x555555af35d0) = 22885
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22885] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22885] write(4, "78", 2)           = 2
[pid 22885] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22885] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22885] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22886 attached
, child_tidptr=0x555555af35d0) = 22886
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22886] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22886] write(4, "78", 2)           = 2
[pid 22886] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22886] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22886] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22887
./strace-static-x86_64: Process 22887 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22887] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22887] write(4, "78", 2)           = 2
[pid 22887] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22887] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22887] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22888
./strace-static-x86_64: Process 22888 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22888] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22888] write(4, "78", 2)           = 2
[pid 22888] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22888] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22888] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22889 attached
, child_tidptr=0x555555af35d0) = 22889
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22889] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22889] write(4, "78", 2)           = 2
[pid 22889] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22889] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22889] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22890
./strace-static-x86_64: Process 22890 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22890] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22890] write(4, "78", 2)           = 2
[pid 22890] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22890] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22890] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22891 attached
, child_tidptr=0x555555af35d0) = 22891
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22891] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22891] write(4, "78", 2)           = 2
[pid 22891] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22891] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22891] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22892 attached
, child_tidptr=0x555555af35d0) = 22892
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22892] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22892] write(4, "78", 2)           = 2
[pid 22892] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22892] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22892] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22893 attached
, child_tidptr=0x555555af35d0) = 22893
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22893] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22893] write(4, "78", 2)           = 2
[pid 22893] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22893] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22893] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22894 attached
, child_tidptr=0x555555af35d0) = 22894
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22894] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22894] write(4, "78", 2)           = 2
[pid 22894] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22894] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22894] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22895 attached
, child_tidptr=0x555555af35d0) = 22895
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22895] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22895] write(4, "78", 2)           = 2
[pid 22895] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22895] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22895] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22896 attached
, child_tidptr=0x555555af35d0) = 22896
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22896] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22896] write(4, "78", 2)           = 2
[pid 22896] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 22896] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22896] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22897 attached
, child_tidptr=0x555555af35d0) = 22897
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22897] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22897] write(4, "78", 2)           = 2
[pid 22897] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22897] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22897] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22898 attached
, child_tidptr=0x555555af35d0) = 22898
[pid 22898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22898] setpgid(0, 0)               = 0
[pid 22898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22898] write(3, "1000", 4)         = 4
[pid 22898] close(3)                    = 0
[pid 22898] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22898] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22898] write(4, "78", 2)           = 2
[pid 22898] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22898] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22898] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22898] exit_group(0)               = ?
[pid 22898] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22898, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22899 attached
, child_tidptr=0x555555af35d0) = 22899
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22899] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22899] write(4, "78", 2)           = 2
[pid 22899] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22899] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22899] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22900 attached
, child_tidptr=0x555555af35d0) = 22900
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22900] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22900] write(4, "78", 2)           = 2
[pid 22900] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22900] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22900] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22901
./strace-static-x86_64: Process 22901 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22901] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22901] write(4, "78", 2)           = 2
[pid 22901] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22901] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22901] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22902
./strace-static-x86_64: Process 22902 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22902] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22902] write(4, "78", 2)           = 2
[pid 22902] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22902] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22902] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22903 attached
, child_tidptr=0x555555af35d0) = 22903
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22903] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22903] write(4, "78", 2)           = 2
[pid 22903] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22903] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22903] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22904 attached
, child_tidptr=0x555555af35d0) = 22904
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22904] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22904] write(4, "78", 2)           = 2
[pid 22904] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22904] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22904] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22905 attached
, child_tidptr=0x555555af35d0) = 22905
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22905] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22905] write(4, "78", 2)           = 2
[pid 22905] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22905] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22905] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22906 attached
, child_tidptr=0x555555af35d0) = 22906
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22906] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22906] write(4, "78", 2)           = 2
[pid 22906] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22906] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22906] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22907 attached
, child_tidptr=0x555555af35d0) = 22907
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22907] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22907] write(4, "78", 2)           = 2
[pid 22907] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22907] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22907] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22908 attached
, child_tidptr=0x555555af35d0) = 22908
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22908] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22908] write(4, "78", 2)           = 2
[pid 22908] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22908] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22908] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22909 attached
, child_tidptr=0x555555af35d0) = 22909
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22909] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22909] write(4, "78", 2)           = 2
[pid 22909] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22909] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22909] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22910 attached
, child_tidptr=0x555555af35d0) = 22910
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22910] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22910] write(4, "78", 2)           = 2
[pid 22910] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22910] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22910] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22911 attached
, child_tidptr=0x555555af35d0) = 22911
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22911] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22911] write(4, "78", 2)           = 2
[pid 22911] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22911] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22911] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22912 attached
, child_tidptr=0x555555af35d0) = 22912
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22912] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22912] write(4, "78", 2)           = 2
[pid 22912] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22912] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22912] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22913 attached
, child_tidptr=0x555555af35d0) = 22913
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22913] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22913] write(4, "78", 2)           = 2
[pid 22913] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22913] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22913] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22914 attached
, child_tidptr=0x555555af35d0) = 22914
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22914] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22914] write(4, "78", 2)           = 2
[pid 22914] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22914] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22914] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22915 attached
, child_tidptr=0x555555af35d0) = 22915
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22915] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22915] write(4, "78", 2)           = 2
[pid 22915] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22915] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22915] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22916 attached
, child_tidptr=0x555555af35d0) = 22916
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22916] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22916] write(4, "78", 2)           = 2
[pid 22916] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22916] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22916] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22917 attached
, child_tidptr=0x555555af35d0) = 22917
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22917] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22917] write(4, "78", 2)           = 2
[pid 22917] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22917] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22917] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22918 attached
, child_tidptr=0x555555af35d0) = 22918
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22918] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22918] write(4, "78", 2)           = 2
[pid 22918] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22918] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22918] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22919 attached
, child_tidptr=0x555555af35d0) = 22919
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22919] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22919] write(4, "78", 2)           = 2
[pid 22919] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22919] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22919] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22920 attached
, child_tidptr=0x555555af35d0) = 22920
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22920] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22920] write(4, "78", 2)           = 2
[pid 22920] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22920] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22920] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22921 attached
, child_tidptr=0x555555af35d0) = 22921
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22921] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22921] write(4, "78", 2)           = 2
[pid 22921] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22921] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22921] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22922 attached
, child_tidptr=0x555555af35d0) = 22922
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22922] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22922] write(4, "78", 2)           = 2
[pid 22922] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22922] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22922] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22923 attached
, child_tidptr=0x555555af35d0) = 22923
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22923] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22923] write(4, "78", 2)           = 2
[pid 22923] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22923] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22923] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22924 attached
, child_tidptr=0x555555af35d0) = 22924
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22924] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22924] write(4, "78", 2)           = 2
[pid 22924] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22924] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22924] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22925 attached
, child_tidptr=0x555555af35d0) = 22925
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22925] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22925] write(4, "78", 2)           = 2
[pid 22925] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22925] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22925] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22926 attached
, child_tidptr=0x555555af35d0) = 22926
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22926] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22926] write(4, "78", 2)           = 2
[pid 22926] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22926] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22926] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22927
./strace-static-x86_64: Process 22927 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22927] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22927] write(4, "78", 2)           = 2
[pid 22927] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22927] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22927] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22928
./strace-static-x86_64: Process 22928 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22928] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22928] write(4, "78", 2)           = 2
[pid 22928] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 22928] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22928] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22929 attached
, child_tidptr=0x555555af35d0) = 22929
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22929] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22929] write(4, "78", 2)           = 2
[pid 22929] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22929] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22929] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22930
./strace-static-x86_64: Process 22930 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22930] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22930] write(4, "78", 2)           = 2
[pid 22930] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22930] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22930] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22931 attached
, child_tidptr=0x555555af35d0) = 22931
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22931] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22931] write(4, "78", 2)           = 2
[pid 22931] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22931] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22931] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22932 attached
, child_tidptr=0x555555af35d0) = 22932
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22932] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22932] write(4, "78", 2)           = 2
[pid 22932] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22932] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22932] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22933
./strace-static-x86_64: Process 22933 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22933] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22933] write(4, "78", 2)           = 2
[pid 22933] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22933] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22933] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22934 attached
, child_tidptr=0x555555af35d0) = 22934
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22934] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22934] write(4, "78", 2)           = 2
[pid 22934] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22934] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22934] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22935 attached
, child_tidptr=0x555555af35d0) = 22935
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22935] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22935] write(4, "78", 2)           = 2
[pid 22935] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22935] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22935] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22936
./strace-static-x86_64: Process 22936 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22936] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22936] write(4, "78", 2)           = 2
[pid 22936] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22936] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22936] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22937
./strace-static-x86_64: Process 22937 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22937] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22937] write(4, "78", 2)           = 2
[pid 22937] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22937] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22937] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22938 attached
, child_tidptr=0x555555af35d0) = 22938
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22938] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22938] write(4, "78", 2)           = 2
[pid 22938] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22938] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22938] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22939 attached
, child_tidptr=0x555555af35d0) = 22939
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22939] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22939] write(4, "78", 2)           = 2
[pid 22939] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22939] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22939] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22940 attached
, child_tidptr=0x555555af35d0) = 22940
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22940] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22940] write(4, "78", 2)           = 2
[pid 22940] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22940] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22940] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22941 attached
, child_tidptr=0x555555af35d0) = 22941
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22941] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22941] write(4, "78", 2)           = 2
[pid 22941] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22941] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22941] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22942 attached
, child_tidptr=0x555555af35d0) = 22942
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22942] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22942] write(4, "78", 2)           = 2
[pid 22942] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22942] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22942] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22943 attached
, child_tidptr=0x555555af35d0) = 22943
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22943] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22943] write(4, "78", 2)           = 2
[pid 22943] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22943] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22943] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22944 attached
, child_tidptr=0x555555af35d0) = 22944
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22944] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22944] write(4, "78", 2)           = 2
[pid 22944] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22944] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22944] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22945
./strace-static-x86_64: Process 22945 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22945] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22945] write(4, "78", 2)           = 2
[pid 22945] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22945] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22945] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22946
./strace-static-x86_64: Process 22946 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22946] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22946] write(4, "78", 2)           = 2
[pid 22946] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22946] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22946] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22947 attached
, child_tidptr=0x555555af35d0) = 22947
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22947] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22947] write(4, "78", 2)           = 2
[pid 22947] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22947] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22947] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22948 attached
, child_tidptr=0x555555af35d0) = 22948
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22948] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22948] write(4, "78", 2)           = 2
[pid 22948] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22948] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22948] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22949
./strace-static-x86_64: Process 22949 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22949] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22949] write(4, "78", 2)           = 2
[pid 22949] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22949] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22949] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22950 attached
, child_tidptr=0x555555af35d0) = 22950
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22950] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22950] write(4, "78", 2)           = 2
[pid 22950] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22950] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22950] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22951 attached
, child_tidptr=0x555555af35d0) = 22951
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22951] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22951] write(4, "78", 2)           = 2
[pid 22951] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22951] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22951] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22952 attached
, child_tidptr=0x555555af35d0) = 22952
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22952] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22952] write(4, "78", 2)           = 2
[pid 22952] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22952] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22952] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22953 attached
, child_tidptr=0x555555af35d0) = 22953
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22953] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22953] write(4, "78", 2)           = 2
[pid 22953] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 22953] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22953] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22954 attached
, child_tidptr=0x555555af35d0) = 22954
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22954] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22954] write(4, "78", 2)           = 2
[pid 22954] ioctl(3, LOOP_CTL_ADD, 12)  = -1 EEXIST (File exists)
[pid 22954] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22954] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22955 attached
, child_tidptr=0x555555af35d0) = 22955
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22955] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22955] write(4, "78", 2)           = 2
[pid 22955] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22955] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22955] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22956 attached
, child_tidptr=0x555555af35d0) = 22956
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22956] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22956] write(4, "78", 2)           = 2
[pid 22956] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22956] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22956] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22957 attached
, child_tidptr=0x555555af35d0) = 22957
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22957] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22957] write(4, "78", 2)           = 2
[pid 22957] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22957] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22957] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22958 attached
, child_tidptr=0x555555af35d0) = 22958
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22958] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22958] write(4, "78", 2)           = 2
[pid 22958] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22958] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22958] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22959 attached
, child_tidptr=0x555555af35d0) = 22959
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22959] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22959] write(4, "78", 2)           = 2
[pid 22959] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22959] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22959] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22960
./strace-static-x86_64: Process 22960 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22960] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22960] write(4, "78", 2)           = 2
[pid 22960] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22960] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22960] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22961 attached
, child_tidptr=0x555555af35d0) = 22961
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22961] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22961] write(4, "78", 2)           = 2
[pid 22961] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22961] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22961] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22962 attached
, child_tidptr=0x555555af35d0) = 22962
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22962] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22962] write(4, "78", 2)           = 2
[pid 22962] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22962] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22962] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22963
./strace-static-x86_64: Process 22963 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22963] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22963] write(4, "78", 2)           = 2
[pid 22963] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22963] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22963] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22964 attached
, child_tidptr=0x555555af35d0) = 22964
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22964] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22964] write(4, "78", 2)           = 2
[pid 22964] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22964] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22964] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22965 attached
, child_tidptr=0x555555af35d0) = 22965
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22965] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22965] write(4, "78", 2)           = 2
[pid 22965] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22965] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22965] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22966
./strace-static-x86_64: Process 22966 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22966] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22966] write(4, "78", 2)           = 2
[pid 22966] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22966] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22966] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22967
./strace-static-x86_64: Process 22967 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22967] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22967] write(4, "78", 2)           = 2
[pid 22967] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22967] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22967] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22968
./strace-static-x86_64: Process 22968 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22968] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22968] write(4, "78", 2)           = 2
[pid 22968] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22968] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22968] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22969
./strace-static-x86_64: Process 22969 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22969] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22969] write(4, "78", 2)           = 2
[pid 22969] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22969] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22969] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22970 attached
, child_tidptr=0x555555af35d0) = 22970
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22970] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22970] write(4, "78", 2)           = 2
[pid 22970] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22970] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22970] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22971
./strace-static-x86_64: Process 22971 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22971] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22971] write(4, "78", 2)           = 2
[pid 22971] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22971] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22971] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22972 attached
, child_tidptr=0x555555af35d0) = 22972
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22972] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22972] write(4, "78", 2)           = 2
[pid 22972] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22972] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22972] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22973 attached
, child_tidptr=0x555555af35d0) = 22973
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22973] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22973] write(4, "78", 2)           = 2
[pid 22973] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22973] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22973] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22974 attached
, child_tidptr=0x555555af35d0) = 22974
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22974] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22974] write(4, "78", 2)           = 2
[pid 22974] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22974] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22974] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22975 attached
, child_tidptr=0x555555af35d0) = 22975
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22975] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22975] write(4, "78", 2)           = 2
[pid 22975] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22975] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22975] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22976 attached
, child_tidptr=0x555555af35d0) = 22976
[pid 22976] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22976] setpgid(0, 0)               = 0
[pid 22976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22976] write(3, "1000", 4)         = 4
[pid 22976] close(3)                    = 0
[pid 22976] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22976] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22976] write(4, "78", 2)           = 2
[pid 22976] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22976] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22976] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[pid 22976] exit_group(0)               = ?
[pid 22976] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22976, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22977 attached
, child_tidptr=0x555555af35d0) = 22977
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22977] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22977] write(4, "78", 2)           = 2
[pid 22977] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22977] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22977] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22978 attached
, child_tidptr=0x555555af35d0) = 22978
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22978] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22978] write(4, "78", 2)           = 2
[pid 22978] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22978] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22978] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22979 attached
, child_tidptr=0x555555af35d0) = 22979
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22979] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22979] write(4, "78", 2)           = 2
[pid 22979] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22979] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22979] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22980 attached
, child_tidptr=0x555555af35d0) = 22980
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22980] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22980] write(4, "78", 2)           = 2
[pid 22980] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22980] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22980] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22981 attached
, child_tidptr=0x555555af35d0) = 22981
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22981] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22981] write(4, "78", 2)           = 2
[pid 22981] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22981] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22981] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22982 attached
, child_tidptr=0x555555af35d0) = 22982
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22982] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22982] write(4, "78", 2)           = 2
[pid 22982] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22982] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22982] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22983 attached
, child_tidptr=0x555555af35d0) = 22983
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22983] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22983] write(4, "78", 2)           = 2
[pid 22983] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22983] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22983] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22984 attached
, child_tidptr=0x555555af35d0) = 22984
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22984] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22984] write(4, "78", 2)           = 2
[pid 22984] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22984] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22984] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22985 attached
, child_tidptr=0x555555af35d0) = 22985
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22985] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22985] write(4, "78", 2)           = 2
[pid 22985] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22985] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22985] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22986
./strace-static-x86_64: Process 22986 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22986] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22986] write(4, "78", 2)           = 2
[pid 22986] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22986] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22986] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22987 attached
, child_tidptr=0x555555af35d0) = 22987
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22987] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22987] write(4, "78", 2)           = 2
[pid 22987] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22987] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22987] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22988 attached
, child_tidptr=0x555555af35d0) = 22988
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22988] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22988] write(4, "78", 2)           = 2
[pid 22988] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22988] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22988] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 22989
./strace-static-x86_64: Process 22989 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22989] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22989] write(4, "78", 2)           = 2
[pid 22989] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22989] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22989] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22990 attached
, child_tidptr=0x555555af35d0) = 22990
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22990] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22990] write(4, "78", 2)           = 2
[pid 22990] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22990] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22990] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22991 attached
, child_tidptr=0x555555af35d0) = 22991
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22991] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22991] write(4, "78", 2)           = 2
[pid 22991] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22991] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22991] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22992 attached
, child_tidptr=0x555555af35d0) = 22992
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22992] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22992] write(4, "78", 2)           = 2
[pid 22992] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22992] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22992] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22993 attached
, child_tidptr=0x555555af35d0) = 22993
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22993] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22993] write(4, "78", 2)           = 2
[pid 22993] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22993] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22993] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22994 attached
, child_tidptr=0x555555af35d0) = 22994
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22994] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22994] write(4, "78", 2)           = 2
[pid 22994] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22994] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22994] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22995 attached
, child_tidptr=0x555555af35d0) = 22995
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22995] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22995] write(4, "78", 2)           = 2
[pid 22995] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22995] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22995] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22996 attached
, child_tidptr=0x555555af35d0) = 22996
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22996] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22996] write(4, "78", 2)           = 2
[pid 22996] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22996] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22996] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22997 attached
, child_tidptr=0x555555af35d0) = 22997
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22997] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22997] write(4, "78", 2)           = 2
[pid 22997] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22997] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22997] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22998 attached
, child_tidptr=0x555555af35d0) = 22998
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22998] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22998] write(4, "78", 2)           = 2
[pid 22998] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22998] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22998] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22999 attached
, child_tidptr=0x555555af35d0) = 22999
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 22999] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 22999] write(4, "78", 2)           = 2
[pid 22999] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 22999] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 22999] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23000 attached
, child_tidptr=0x555555af35d0) = 23000
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23000] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23000] write(4, "78", 2)           = 2
[pid 23000] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23000] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23000] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23001 attached
, child_tidptr=0x555555af35d0) = 23001
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23001] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23001] write(4, "78", 2)           = 2
[pid 23001] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23001] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23001] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 23002
./strace-static-x86_64: Process 23002 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23002] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23002] write(4, "78", 2)           = 2
[pid 23002] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23002] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23002] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23003 attached
, child_tidptr=0x555555af35d0) = 23003
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23003] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23003] write(4, "78", 2)           = 2
[pid 23003] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23003] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23003] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23004 attached
, child_tidptr=0x555555af35d0) = 23004
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23004] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23004] write(4, "78", 2)           = 2
[pid 23004] ioctl(3, LOOP_CTL_ADD, 12)  = 12
[pid 23004] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23004] ioctl(5, LOOP_CTL_REMOVE, 12) = 0
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23005 attached
, child_tidptr=0x555555af35d0) = 23005
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23005] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23005] write(4, "78", 2)           = 2
[pid 23005] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23005] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23005] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 23006
./strace-static-x86_64: Process 23006 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23006] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23006] write(4, "78", 2)           = 2
[pid 23006] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23006] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23006] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23007 attached
, child_tidptr=0x555555af35d0) = 23007
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23007] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23007] write(4, "78", 2)           = 2
[pid 23007] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23007] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23007] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23008 attached
, child_tidptr=0x555555af35d0) = 23008
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23008] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23008] write(4, "78", 2)           = 2
[pid 23008] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23008] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23008] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23009 attached
, child_tidptr=0x555555af35d0) = 23009
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23009] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23009] write(4, "78", 2)           = 2
[pid 23009] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23009] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23009] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23010 attached
, child_tidptr=0x555555af35d0) = 23010
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23010] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23010] write(4, "78", 2)           = 2
[pid 23010] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23010] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23010] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555af35d0) = 23011
./strace-static-x86_64: Process 23011 attached
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23011] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23011] write(4, "78", 2)           = 2
[pid 23011] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23011] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23011] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23012 attached
, child_tidptr=0x555555af35d0) = 23012
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23012] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23012] write(4, "78", 2)           = 2
[pid 23012] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23012] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23012] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23013 attached
, child_tidptr=0x555555af35d0) = 23013
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23013] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23013] write(4, "78", 2)           = 2
[pid 23013] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23013] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23013] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23014 attached
, child_tidptr=0x555555af35d0) = 23014
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23014] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23014] write(4, "78", 2)           = 2
[pid 23014] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23014] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23014] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23015 attached
, child_tidptr=0x555555af35d0) = 23015
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23015] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23015] write(4, "78", 2)           = 2
[pid 23015] ioctl(3, LOOP_CTL_ADD, 12)  = -1 ENOMEM (Cannot allocate memory)
[pid 23015] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5
[pid 23015] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 ENODEV (No such device)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23016 attached
, child_tidptr=0x555555af35d0) = 23016
[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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3
[pid 23016] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 23016] write(4, "78", 2)           = 2
[  330.867247][T23016] ------------[ cut here ]------------
[  330.873593][T23016] WARNING: CPU: 0 PID: 23016 at block/blk-mq.c:3881 blk_mq_release+0xf8/0x3e0
[  330.882780][T23016] Modules linked in:
[  330.886738][T23016] CPU: 1 PID: 23016 Comm: syz-executor588 Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
[  330.897238][T23016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
[  330.908545][T23016] RIP: 0010:blk_mq_release+0xf8/0x3e0
[  330.914018][T23016] Code: fd 4c 8d a3 a8 02 00 00 4c 89 e0 48 c1 e8 03 80 3c 28 00 0f 85 14 02 00 00 48 8b 83 a8 02 00 00 49 39 c4 75 b1 e8 48 e4 96 fd <0f> 0b eb a8 e8 3f e4 96 fd 48 8b 44 24 10 48 05 18 05 00 00 48 89
[  330.933831][T23016] RSP: 0018:ffffc900032bfc60 EFLAGS: 00010293
[  330.939983][T23016] RAX: 0000000000000000 RBX: ffff88807a8e8800 RCX: 0000000000000000
[  330.947964][T23016] RDX: ffff88807cd89d80 RSI: ffffffff83e3f578 RDI: 0000000000000000
[  330.955993][T23016] RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
[  330.963991][T23016] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88807a8e8aa8
[  330.972226][T23016] R13: ffff88807ab0db40 R14: ffff88807ab0db88 R15: 0000000000000000
[  330.980639][T23016] FS:  0000555555af3300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
[  330.989831][T23016] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  330.996566][T23016] CR2: 00007fbf573219f0 CR3: 000000007deea000 CR4: 0000000000350ee0
[  331.004605][T23016] Call Trace:
[  331.007892][T23016]  <TASK>
[  331.010892][T23016]  ? blk_mq_free_map_and_rqs+0x110/0x110
[  331.016540][T23016]  ? rcu_read_lock_sched_held+0x3a/0x70
[  331.022239][T23016]  ? kfree+0x1fb/0x4d0
[  331.026411][T23016]  blk_release_queue+0x153/0x270
[  331.031423][T23016]  kobject_put+0x1c8/0x540
[  331.035964][T23016]  __alloc_disk_node+0x4f7/0x610
[  331.040957][T23016]  __blk_mq_alloc_disk+0x13b/0x1f0
[  331.046253][T23016]  loop_add+0x3e2/0xaf0
[  331.050629][T23016]  ? ptrace_notify+0xfa/0x140
[  331.055403][T23016]  loop_control_ioctl+0x133/0x620
[  331.060465][T23016]  ? lo_compat_ioctl+0x110/0x110
[  331.065495][T23016]  ? _raw_spin_unlock_irq+0x1f/0x40
[  331.070752][T23016]  ? bpf_lsm_file_ioctl+0x5/0x10
[  331.075720][T23016]  ? lo_compat_ioctl+0x110/0x110
[  331.080761][T23016]  __x64_sys_ioctl+0x193/0x200
[  331.085560][T23016]  do_syscall_64+0x35/0xb0
[  331.090053][T23016]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  331.095976][T23016] RIP: 0033:0x7fbf572f20b9
[  331.100683][T23016] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[  331.120695][T23016] RSP: 002b:00007ffca9b31288 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  331.129415][T23016] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fbf572f20b9
[  331.137582][T23016] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003
[  331.145944][T23016] RBP: 00007ffca9b312a0 R08: 0000000000000002 R09: 0000000000000001
[  331.154079][T23016] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
[  331.162293][T23016] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[  331.170350][T23016]  </TASK>
[  331.173390][T23016] Kernel panic - not syncing: panic_on_warn set ...
[  331.179980][T23016] CPU: 0 PID: 23016 Comm: syz-executor588 Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
[  331.190291][T23016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
[  331.200335][T23016] Call Trace:
[  331.203614][T23016]  <TASK>
[  331.206553][T23016]  dump_stack_lvl+0xcd/0x134
[  331.211163][T23016]  panic+0x2d7/0x636
[  331.215061][T23016]  ? panic_print_sys_info.part.0+0x10b/0x10b
[  331.221157][T23016]  ? __warn.cold+0x1d1/0x2c5
[  331.225743][T23016]  ? blk_mq_release+0xf8/0x3e0
[  331.230502][T23016]  __warn.cold+0x1e2/0x2c5
[  331.234915][T23016]  ? blk_mq_release+0xf8/0x3e0
[  331.239709][T23016]  report_bug+0x1bc/0x210
[  331.244057][T23016]  handle_bug+0x3c/0x60
[  331.248205][T23016]  exc_invalid_op+0x14/0x40
[  331.252895][T23016]  asm_exc_invalid_op+0x16/0x20
[  331.257746][T23016] RIP: 0010:blk_mq_release+0xf8/0x3e0
[  331.263141][T23016] Code: fd 4c 8d a3 a8 02 00 00 4c 89 e0 48 c1 e8 03 80 3c 28 00 0f 85 14 02 00 00 48 8b 83 a8 02 00 00 49 39 c4 75 b1 e8 48 e4 96 fd <0f> 0b eb a8 e8 3f e4 96 fd 48 8b 44 24 10 48 05 18 05 00 00 48 89
[  331.282908][T23016] RSP: 0018:ffffc900032bfc60 EFLAGS: 00010293
[  331.289053][T23016] RAX: 0000000000000000 RBX: ffff88807a8e8800 RCX: 0000000000000000
[  331.297035][T23016] RDX: ffff88807cd89d80 RSI: ffffffff83e3f578 RDI: 0000000000000000
[  331.305009][T23016] RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
[  331.313098][T23016] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88807a8e8aa8
[  331.321071][T23016] R13: ffff88807ab0db40 R14: ffff88807ab0db88 R15: 0000000000000000
[  331.329159][T23016]  ? blk_mq_release+0xf8/0x3e0
[  331.333936][T23016]  ? blk_mq_free_map_and_rqs+0x110/0x110
[  331.339642][T23016]  ? rcu_read_lock_sched_held+0x3a/0x70
[  331.345705][T23016]  ? kfree+0x1fb/0x4d0
[  331.349772][T23016]  blk_release_queue+0x153/0x270
[  331.354715][T23016]  kobject_put+0x1c8/0x540
[  331.359143][T23016]  __alloc_disk_node+0x4f7/0x610
[  331.364100][T23016]  __blk_mq_alloc_disk+0x13b/0x1f0
[  331.369228][T23016]  loop_add+0x3e2/0xaf0
[  331.373414][T23016]  ? ptrace_notify+0xfa/0x140
[  331.378107][T23016]  loop_control_ioctl+0x133/0x620
[  331.383150][T23016]  ? lo_compat_ioctl+0x110/0x110
[  331.388091][T23016]  ? _raw_spin_unlock_irq+0x1f/0x40
[  331.393318][T23016]  ? bpf_lsm_file_ioctl+0x5/0x10
[  331.398346][T23016]  ? lo_compat_ioctl+0x110/0x110
[  331.403272][T23016]  __x64_sys_ioctl+0x193/0x200
[  331.408046][T23016]  do_syscall_64+0x35/0xb0
[  331.412479][T23016]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  331.418382][T23016] RIP: 0033:0x7fbf572f20b9
[  331.422785][T23016] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[  331.442399][T23016] RSP: 002b:00007ffca9b31288 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  331.450918][T23016] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fbf572f20b9
[  331.458897][T23016] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003
[  331.466884][T23016] RBP: 00007ffca9b312a0 R08: 0000000000000002 R09: 0000000000000001
[  331.474858][T23016] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
[  331.482954][T23016] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[  331.491100][T23016]  </TASK>
[  331.494808][T23016] Kernel Offset: disabled
[  331.499179][T23016] Rebooting in 86400 seconds..