./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4114940472
<...>
Warning: Permanently added '10.128.0.52' (ECDSA) to the list of known hosts.
execve("./syz-executor4114940472", ["./syz-executor4114940472"], 0x7ffe854099a0 /* 10 vars */) = 0
brk(NULL) = 0x555556985000
brk(0x555556985c40) = 0x555556985c40
arch_prctl(ARCH_SET_FS, 0x555556985300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
set_tid_address(0x5555569855d0) = 3613
set_robust_list(0x5555569855e0, 24) = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f8177f02430, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f8177f02b00}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f8177f024d0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f8177f02b00}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor4114940472", 4096) = 28
brk(0x5555569a6c40) = 0x5555569a6c40
brk(0x5555569a7000) = 0x5555569a7000
mprotect(0x7f8177fc3000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
openat(AT_FDCWD, "/sys/kernel/debug/failslab/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3
write(3, "N", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/ignore-private", O_WRONLY|O_CLOEXEC) = 3
write(3, "N", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", O_WRONLY|O_CLOEXEC) = 3
write(3, "N", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3
write(3, "N", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/min-order", O_WRONLY|O_CLOEXEC) = 3
write(3, "0", 1) = 1
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3614 attached
, child_tidptr=0x5555569855d0) = 3614
[pid 3614] set_robust_list(0x5555569855e0, 24) = 0
[pid 3614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3614] setpgid(0, 0) = 0
[pid 3614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3614] write(3, "1000", 4) = 4
[pid 3614] close(3) = 0
[pid 3614] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3614] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3614] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3614] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3615], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3615
[pid 3614] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3614] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3615 attached
<unfinished ...>
[pid 3615] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3615] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3615] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3614] <... futex resumed>) = 0
[pid 3614] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3615] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE <unfinished ...>
[pid 3614] <... futex resumed>) = 0
[pid 3614] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3615] <... ioctl resumed>) = 0
[pid 3615] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3614] <... futex resumed>) = 0
[pid 3614] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3615] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3614] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3615] <... openat resumed>) = 4
[pid 3615] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3614] <... futex resumed>) = 0
[pid 3615] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3614] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3614] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3615] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0
[pid 3615] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3614] <... futex resumed>) = 0
[pid 3615] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3614] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3614] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3615] ioctl(4, NBD_SET_SOCK, 5) = 0
[pid 3615] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3614] <... futex resumed>) = 0
[pid 3615] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3614] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3614] <... futex resumed>) = 0
[pid 3615] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3614] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3615] <... openat resumed>) = 7
[pid 3615] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3614] <... futex resumed>) = 0
[pid 3615] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3614] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3615] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3614] <... futex resumed>) = 0
[pid 3614] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3615] <... ioctl resumed>) = 0
[pid 3615] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3614] <... futex resumed>) = 0
[pid 3615] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3614] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3614] <... futex resumed>) = 0
[pid 3615] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR <unfinished ...>
[pid 3614] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3615] <... openat resumed>) = 8
[pid 3615] write(8, "13", 2) = 2
[pid 3615] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3614] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
syzkaller login: [ 42.109293][ T3615] Increasing nr_hw_queues to 2 fails, fallback to 1
[pid 3614] exit_group(0 <unfinished ...>
[pid 3615] <... ioctl resumed>) = ?
[pid 3614] <... exit_group resumed>) = ?
[pid 3615] +++ exited with 0 +++
[pid 3614] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3614, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555569855d0) = 3619
./strace-static-x86_64: Process 3619 attached
[pid 3619] set_robust_list(0x5555569855e0, 24) = 0
[pid 3619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3619] setpgid(0, 0) = 0
[pid 3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3619] write(3, "1000", 4) = 4
[pid 3619] close(3) = 0
[pid 3619] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3619] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3619] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3620], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3620
[pid 3619] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3619] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3620 attached
<unfinished ...>
[pid 3620] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3620] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3620] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3619] <... futex resumed>) = 0
[pid 3619] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3619] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3620] <... futex resumed>) = 1
[pid 3620] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0
[pid 3620] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3619] <... futex resumed>) = 0
[pid 3619] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3619] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3620] <... futex resumed>) = 1
[pid 3620] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4
[pid 3620] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3619] <... futex resumed>) = 0
[pid 3619] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3619] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3620] <... futex resumed>) = 1
[pid 3620] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0
[pid 3620] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3619] <... futex resumed>) = 0
[pid 3619] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3619] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3620] <... futex resumed>) = 1
[ 42.259328][ T3615] block nbd0: shutting down sockets
[pid 3620] ioctl(4, NBD_SET_SOCK, 5) = 0
[pid 3620] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3619] <... futex resumed>) = 0
[pid 3620] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3619] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3620] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3619] <... futex resumed>) = 0
[pid 3620] <... openat resumed>) = 7
[pid 3620] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3619] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3620] <... futex resumed>) = 0
[pid 3619] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3620] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3619] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3620] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3619] <... futex resumed>) = 0
[pid 3619] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3620] <... ioctl resumed>) = 0
[pid 3620] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3619] <... futex resumed>) = 0
[pid 3619] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3619] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3620] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8
[pid 3620] write(8, "13", 2) = 2
[pid 3620] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3619] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[pid 3619] exit_group(0) = ?
[pid 3620] <... ioctl resumed>) = ?
[ 42.545247][ T3620] block nbd0: shutting down sockets
[pid 3620] +++ exited with 0 +++
[pid 3619] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3619, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3621 attached
, child_tidptr=0x5555569855d0) = 3621
[pid 3621] set_robust_list(0x5555569855e0, 24) = 0
[pid 3621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3621] setpgid(0, 0) = 0
[pid 3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3621] write(3, "1000", 4) = 4
[pid 3621] close(3) = 0
[pid 3621] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3621] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3621] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3621] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3622 attached
, parent_tid=[3622], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3622
[pid 3621] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3621] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3622] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3622] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3622] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3621] <... futex resumed>) = 0
[pid 3622] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE <unfinished ...>
[pid 3621] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3622] <... ioctl resumed>) = 0
[pid 3621] <... futex resumed>) = 0
[pid 3622] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3621] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3622] <... futex resumed>) = 0
[pid 3621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3622] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3621] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3622] <... openat resumed>) = 4
[pid 3621] <... futex resumed>) = 0
[pid 3622] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3621] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3622] <... futex resumed>) = 0
[pid 3621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3622] socketpair(AF_UNIX, SOCK_STREAM, 0, <unfinished ...>
[pid 3621] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3622] <... socketpair resumed>[5, 6]) = 0
[pid 3621] <... futex resumed>) = 0
[pid 3622] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3621] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3622] <... futex resumed>) = 0
[pid 3621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3622] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3621] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3621] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3622] <... ioctl resumed>) = 0
[pid 3622] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3621] <... futex resumed>) = 0
[pid 3622] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3621] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3622] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3621] <... futex resumed>) = 0
[pid 3622] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3621] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3622] <... openat resumed>) = 7
[pid 3622] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3621] <... futex resumed>) = 0
[pid 3622] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3621] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3622] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3621] <... futex resumed>) = 0
[pid 3622] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3621] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3622] <... ioctl resumed>) = 0
[pid 3622] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3622] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3621] <... futex resumed>) = 0
[pid 3621] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3622] <... futex resumed>) = 0
[pid 3621] <... futex resumed>) = 1
[pid 3622] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR <unfinished ...>
[pid 3621] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3622] <... openat resumed>) = 8
[pid 3622] write(8, "13", 2) = 2
[pid 3622] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3621] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[pid 3621] exit_group(0) = ?
[pid 3622] <... ioctl resumed>) = ?
[ 42.874946][ T3622] block nbd0: shutting down sockets
[pid 3622] +++ exited with 0 +++
[pid 3621] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3621, 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=0x5555569855d0) = 3623
./strace-static-x86_64: Process 3623 attached
[pid 3623] set_robust_list(0x5555569855e0, 24) = 0
[pid 3623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3623] setpgid(0, 0) = 0
[pid 3623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3623] write(3, "1000", 4) = 4
[pid 3623] close(3) = 0
[pid 3623] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3623] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3623] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3623] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3624], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3624
[pid 3623] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3623] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3624 attached
<unfinished ...>
[pid 3624] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3624] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3624] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3623] <... futex resumed>) = 0
[pid 3623] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3623] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3624] <... futex resumed>) = 1
[pid 3624] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0
[pid 3624] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3623] <... futex resumed>) = 0
[pid 3623] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3623] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3624] <... futex resumed>) = 1
[pid 3624] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4
[pid 3624] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3623] <... futex resumed>) = 0
[pid 3623] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3623] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3624] <... futex resumed>) = 1
[pid 3624] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0
[pid 3624] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3623] <... futex resumed>) = 0
[pid 3623] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3623] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3624] <... futex resumed>) = 1
[pid 3624] ioctl(4, NBD_SET_SOCK, 5) = 0
[pid 3624] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3623] <... futex resumed>) = 0
[pid 3624] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3623] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3624] <... futex resumed>) = 0
[pid 3623] <... futex resumed>) = 1
[pid 3624] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3623] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3624] <... openat resumed>) = 7
[pid 3624] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3623] <... futex resumed>) = 0
[pid 3624] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3623] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3623] <... futex resumed>) = 0
[pid 3624] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3623] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3624] <... ioctl resumed>) = 0
[pid 3624] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3623] <... futex resumed>) = 0
[pid 3624] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3623] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3623] <... futex resumed>) = 0
[pid 3624] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR <unfinished ...>
[pid 3623] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3624] <... openat resumed>) = 8
[pid 3624] write(8, "13", 2) = 2
[pid 3624] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3623] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[pid 3623] exit_group(0 <unfinished ...>
[pid 3624] <... ioctl resumed>) = ?
[pid 3623] <... exit_group resumed>) = ?
[ 43.204382][ T3624] block nbd0: shutting down sockets
[pid 3624] +++ exited with 0 +++
[pid 3623] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3623, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555569855d0) = 3625
./strace-static-x86_64: Process 3625 attached
[pid 3625] set_robust_list(0x5555569855e0, 24) = 0
[pid 3625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3625] setpgid(0, 0) = 0
[pid 3625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3625] write(3, "1000", 4) = 4
[pid 3625] close(3) = 0
[pid 3625] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3625] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3625] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3625] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3626], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3626
[pid 3625] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3625] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3626 attached
<unfinished ...>
[pid 3626] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3626] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3626] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3625] <... futex resumed>) = 0
[pid 3625] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3625] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3626] <... futex resumed>) = 1
[pid 3626] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0
[pid 3626] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3625] <... futex resumed>) = 0
[pid 3625] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3625] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3626] <... futex resumed>) = 1
[pid 3626] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4
[pid 3626] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3625] <... futex resumed>) = 0
[pid 3625] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3625] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3626] <... futex resumed>) = 1
[pid 3626] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0
[pid 3626] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3625] <... futex resumed>) = 0
[pid 3625] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3625] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3626] <... futex resumed>) = 1
[pid 3626] ioctl(4, NBD_SET_SOCK, 5) = 0
[pid 3626] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3625] <... futex resumed>) = 0
[pid 3625] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3625] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3626] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7
[pid 3626] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3625] <... futex resumed>) = 0
[pid 3626] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3625] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3625] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3626] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3626] ioctl(4, NBD_SET_SOCK, 5) = 0
[pid 3626] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3626] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3625] <... futex resumed>) = 0
[pid 3625] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3625] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3626] <... futex resumed>) = 0
[pid 3626] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8
[pid 3626] write(8, "13", 2) = 2
[pid 3626] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3625] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[pid 3625] exit_group(0 <unfinished ...>
[pid 3626] <... ioctl resumed>) = ?
[pid 3625] <... exit_group resumed>) = ?
[pid 3626] +++ exited with 0 +++
[pid 3625] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3625, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3627 attached
, child_tidptr=0x5555569855d0) = 3627
[pid 3627] set_robust_list(0x5555569855e0, 24) = 0
[pid 3627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3627] setpgid(0, 0) = 0
[pid 3627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3627] write(3, "1000", 4) = 4
[pid 3627] close(3) = 0
[pid 3627] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3627] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3627] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3627] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3628 attached
<unfinished ...>
[pid 3628] set_robust_list(0x7f8177ef29e0, 24 <unfinished ...>
[pid 3627] <... clone resumed>, parent_tid=[3628], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3628
[pid 3628] <... set_robust_list resumed>) = 0
[pid 3627] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3627] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3628] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3628] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3627] <... futex resumed>) = 0
[pid 3627] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3628] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE <unfinished ...>
[pid 3627] <... futex resumed>) = 0
[pid 3627] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3628] <... ioctl resumed>) = 0
[pid 3628] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3627] <... futex resumed>) = 0
[pid 3627] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3627] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3628] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4
[pid 3628] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3627] <... futex resumed>) = 0
[pid 3627] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3627] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3628] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0
[pid 3628] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3627] <... futex resumed>) = 0
[pid 3628] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3627] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[ 43.535429][ T3626] block nbd0: shutting down sockets
[pid 3627] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3628] <... ioctl resumed>) = 0
[pid 3628] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3627] <... futex resumed>) = 0
[pid 3628] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3627] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3627] <... futex resumed>) = 0
[pid 3628] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3627] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3628] <... openat resumed>) = 7
[pid 3628] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3627] <... futex resumed>) = 0
[pid 3628] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3627] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3627] <... futex resumed>) = 0
[pid 3628] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3627] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3628] <... ioctl resumed>) = 0
[pid 3628] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3627] <... futex resumed>) = 0
[pid 3628] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3627] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3628] <... futex resumed>) = 0
[pid 3627] <... futex resumed>) = 1
[pid 3628] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR <unfinished ...>
[pid 3627] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3628] <... openat resumed>) = 8
[pid 3628] write(8, "13", 2) = 2
[pid 3628] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3627] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[pid 3627] exit_group(0 <unfinished ...>
[pid 3628] <... ioctl resumed>) = ?
[pid 3627] <... exit_group resumed>) = ?
[pid 3628] +++ exited with 0 +++
[pid 3627] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3627, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[ 43.836289][ T3628] block nbd0: shutting down sockets
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555569855d0) = 3629
./strace-static-x86_64: Process 3629 attached
[pid 3629] set_robust_list(0x5555569855e0, 24) = 0
[pid 3629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3629] setpgid(0, 0) = 0
[pid 3629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3629] write(3, "1000", 4) = 4
[pid 3629] close(3) = 0
[pid 3629] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3629] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3629] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3629] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3630], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3630
[pid 3629] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3629] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3630 attached
<unfinished ...>
[pid 3630] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3630] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3630] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3629] <... futex resumed>) = 0
[pid 3629] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3629] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3630] <... futex resumed>) = 1
[pid 3630] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0
[pid 3630] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3629] <... futex resumed>) = 0
[pid 3629] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3629] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3630] <... futex resumed>) = 1
[pid 3630] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4
[pid 3630] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3629] <... futex resumed>) = 0
[pid 3629] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3629] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3630] <... futex resumed>) = 1
[pid 3630] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0
[pid 3630] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3629] <... futex resumed>) = 0
[pid 3629] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3629] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3630] <... futex resumed>) = 1
[pid 3630] ioctl(4, NBD_SET_SOCK, 5) = 0
[pid 3630] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3630] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3629] <... futex resumed>) = 0
[pid 3629] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3630] <... futex resumed>) = 0
[pid 3629] <... futex resumed>) = 1
[pid 3630] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3629] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3630] <... openat resumed>) = 7
[pid 3630] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3629] <... futex resumed>) = 0
[pid 3630] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3629] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3630] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3629] <... futex resumed>) = 0
[pid 3630] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3629] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3630] <... ioctl resumed>) = 0
[pid 3630] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3629] <... futex resumed>) = 0
[pid 3630] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3629] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3630] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3629] <... futex resumed>) = 0
[pid 3630] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR <unfinished ...>
[pid 3629] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3630] <... openat resumed>) = 8
[pid 3630] write(8, "13", 2) = 2
[pid 3630] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3629] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[ 43.979320][ T3630] debugfs: out of free dentries, can not create file 'size_bytes'
[pid 3629] exit_group(0 <unfinished ...>
[pid 3630] <... ioctl resumed>) = ?
[pid 3629] <... exit_group resumed>) = ?
[pid 3630] +++ exited with 0 +++
[pid 3629] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3629, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3631 attached
, child_tidptr=0x5555569855d0) = 3631
[pid 3631] set_robust_list(0x5555569855e0, 24) = 0
[pid 3631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3631] setpgid(0, 0) = 0
[pid 3631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3631] write(3, "1000", 4) = 4
[pid 3631] close(3) = 0
[pid 3631] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3631] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3631] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3632 attached
, parent_tid=[3632], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3632
[pid 3632] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3632] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3631] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3632] <... futex resumed>) = 0
[pid 3632] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3631] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3632] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3632] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3631] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3631] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3632] <... futex resumed>) = 0
[pid 3632] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0
[pid 3632] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3631] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3632] <... futex resumed>) = 0
[pid 3631] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3631] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3632] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3631] <... futex resumed>) = 0
[pid 3631] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3632] <... openat resumed>) = 4
[pid 3632] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3631] <... futex resumed>) = 0
[pid 3632] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3631] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3632] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3631] <... futex resumed>) = 0
[pid 3632] socketpair(AF_UNIX, SOCK_STREAM, 0, <unfinished ...>
[pid 3631] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3632] <... socketpair resumed>[5, 6]) = 0
[pid 3632] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3631] <... futex resumed>) = 0
[pid 3632] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3631] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3632] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3631] <... futex resumed>) = 0
[ 44.165893][ T3630] block nbd0: shutting down sockets
[pid 3631] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3632] <... ioctl resumed>) = 0
[pid 3632] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3631] <... futex resumed>) = 0
[pid 3632] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3631] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3632] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3631] <... futex resumed>) = 0
[pid 3632] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3631] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3632] <... openat resumed>) = 7
[pid 3632] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3631] <... futex resumed>) = 0
[pid 3632] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3631] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3632] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3631] <... futex resumed>) = 0
[pid 3631] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3632] <... ioctl resumed>) = 0
[pid 3632] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3631] <... futex resumed>) = 0
[pid 3631] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3631] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3632] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8
[pid 3632] write(8, "13", 2) = 2
[pid 3632] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3631] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[ 44.279277][ T3632] debugfs: out of free dentries, can not create file 'size_bytes'
[pid 3631] exit_group(0) = ?
[pid 3632] <... ioctl resumed>) = ?
[ 44.463088][ T3632] block nbd0: shutting down sockets
[pid 3632] +++ exited with 0 +++
[pid 3631] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3631, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3633 attached
, child_tidptr=0x5555569855d0) = 3633
[pid 3633] set_robust_list(0x5555569855e0, 24) = 0
[pid 3633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3633] setpgid(0, 0) = 0
[pid 3633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3633] write(3, "1000", 4) = 4
[pid 3633] close(3) = 0
[pid 3633] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3633] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3633] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3633] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3634 attached
, parent_tid=[3634], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3634
[pid 3634] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3634] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3633] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3634] <... futex resumed>) = 0
[pid 3633] <... futex resumed>) = 1
[pid 3634] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3633] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3634] <... openat resumed>) = 3
[pid 3634] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3634] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3633] <... futex resumed>) = 0
[pid 3633] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3634] <... futex resumed>) = 0
[pid 3633] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3634] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0
[pid 3634] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3634] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3633] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3633] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3634] <... futex resumed>) = 0
[pid 3633] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3634] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4
[pid 3634] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3634] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3633] <... futex resumed>) = 0
[pid 3633] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3634] <... futex resumed>) = 0
[pid 3633] <... futex resumed>) = 1
[pid 3634] socketpair(AF_UNIX, SOCK_STREAM, 0, <unfinished ...>
[pid 3633] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3634] <... socketpair resumed>[5, 6]) = 0
[pid 3634] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3633] <... futex resumed>) = 0
[pid 3633] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3634] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3633] <... futex resumed>) = 0
[pid 3633] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3634] <... ioctl resumed>) = 0
[pid 3634] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3633] <... futex resumed>) = 0
[pid 3634] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3633] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3634] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3633] <... futex resumed>) = 0
[pid 3634] <... openat resumed>) = 7
[pid 3634] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3633] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3634] <... futex resumed>) = 0
[pid 3634] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3633] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3633] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3634] <... futex resumed>) = 0
[pid 3633] <... futex resumed>) = 1
[pid 3634] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3633] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3634] <... ioctl resumed>) = 0
[pid 3634] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3633] <... futex resumed>) = 0
[pid 3634] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3633] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3634] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3633] <... futex resumed>) = 0
[pid 3634] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR <unfinished ...>
[pid 3633] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3634] <... openat resumed>) = 8
[pid 3634] write(8, "13", 2) = 2
[pid 3634] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3633] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[ 44.639823][ T3634] debugfs: out of free dentries, can not create file 'size_bytes'
[pid 3633] exit_group(0) = ?
[pid 3634] <... ioctl resumed>) = ?
[ 44.824549][ T3634] block nbd0: shutting down sockets
[pid 3634] +++ exited with 0 +++
[pid 3633] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3633, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555569855d0) = 3635
./strace-static-x86_64: Process 3635 attached
[pid 3635] set_robust_list(0x5555569855e0, 24) = 0
[pid 3635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3635] setpgid(0, 0) = 0
[pid 3635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3635] write(3, "1000", 4) = 4
[pid 3635] close(3) = 0
[pid 3635] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3635] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3635] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3635] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3636], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3636
[pid 3635] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3635] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3636 attached
<unfinished ...>
[pid 3636] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3636] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3636] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3635] <... futex resumed>) = 0
[pid 3635] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3635] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3636] <... futex resumed>) = 1
[pid 3636] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0
[pid 3636] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3635] <... futex resumed>) = 0
[pid 3635] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3635] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3636] <... futex resumed>) = 1
[pid 3636] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4
[pid 3636] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3635] <... futex resumed>) = 0
[pid 3635] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3635] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3636] <... futex resumed>) = 1
[pid 3636] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0
[pid 3636] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3635] <... futex resumed>) = 0
[pid 3635] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3635] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3636] <... futex resumed>) = 1
[pid 3636] ioctl(4, NBD_SET_SOCK, 5) = 0
[pid 3636] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3635] <... futex resumed>) = 0
[pid 3636] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3635] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3636] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3635] <... futex resumed>) = 0
[pid 3636] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3635] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3636] <... openat resumed>) = 7
[pid 3636] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3635] <... futex resumed>) = 0
[pid 3636] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3635] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3636] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3635] <... futex resumed>) = 0
[pid 3636] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3635] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3636] <... ioctl resumed>) = 0
[pid 3636] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3636] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3635] <... futex resumed>) = 0
[pid 3635] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3636] <... futex resumed>) = 0
[pid 3635] <... futex resumed>) = 1
[pid 3635] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3636] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8
[pid 3636] write(8, "13", 2) = 2
[pid 3636] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3635] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[pid 3635] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[ 44.960115][ T3636] debugfs: out of free dentries, can not create file 'size_bytes'
[pid 3635] exit_group(0 <unfinished ...>
[pid 3636] <... ioctl resumed>) = ?
[pid 3635] <... exit_group resumed>) = ?
[ 45.145284][ T3636] block nbd0: shutting down sockets
[pid 3636] +++ exited with 0 +++
[pid 3635] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3637 attached
, child_tidptr=0x5555569855d0) = 3637
[pid 3637] set_robust_list(0x5555569855e0, 24) = 0
[pid 3637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3637] setpgid(0, 0) = 0
[pid 3637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3637] write(3, "1000", 4) = 4
[pid 3637] close(3) = 0
[pid 3637] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3637] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3637] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3637] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3638], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3638
[pid 3637] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3637] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3638 attached
<unfinished ...>
[pid 3638] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3638] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3638] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3637] <... futex resumed>) = 0
[pid 3637] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3637] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3638] <... futex resumed>) = 1
[pid 3638] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0
[pid 3638] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3637] <... futex resumed>) = 0
[pid 3637] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3637] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3638] <... futex resumed>) = 1
[pid 3638] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4
[pid 3638] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3637] <... futex resumed>) = 0
[pid 3637] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3637] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3638] <... futex resumed>) = 1
[pid 3638] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0
[pid 3638] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3637] <... futex resumed>) = 0
[pid 3637] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3637] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3638] <... futex resumed>) = 1
[pid 3638] ioctl(4, NBD_SET_SOCK, 5) = 0
[pid 3638] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3637] <... futex resumed>) = 0
[pid 3638] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3637] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3637] <... futex resumed>) = 0
[pid 3638] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3637] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3638] <... openat resumed>) = 7
[pid 3638] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3637] <... futex resumed>) = 0
[pid 3638] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3637] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3637] <... futex resumed>) = 0
[pid 3638] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3637] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3638] <... ioctl resumed>) = 0
[pid 3638] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3637] <... futex resumed>) = 0
[pid 3638] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3637] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3637] <... futex resumed>) = 0
[pid 3638] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR <unfinished ...>
[pid 3637] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3638] <... openat resumed>) = 8
[pid 3638] write(8, "13", 2) = 2
[pid 3638] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3637] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[ 45.299840][ T3638] debugfs: out of free dentries, can not create file 'size_bytes'
[pid 3637] exit_group(0 <unfinished ...>
[pid 3638] <... ioctl resumed>) = ?
[pid 3637] <... exit_group resumed>) = ?
[ 45.484853][ T3638] block nbd0: shutting down sockets
[pid 3638] +++ exited with 0 +++
[pid 3637] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3637, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555569855d0) = 3639
./strace-static-x86_64: Process 3639 attached
[pid 3639] set_robust_list(0x5555569855e0, 24) = 0
[pid 3639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3639] setpgid(0, 0) = 0
[pid 3639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3639] write(3, "1000", 4) = 4
[pid 3639] close(3) = 0
[pid 3639] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3639] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3639] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3639] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3640], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3640
[pid 3639] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3639] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3640 attached
<unfinished ...>
[pid 3640] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3640] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3640] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3639] <... futex resumed>) = 0
[pid 3639] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3639] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3640] <... futex resumed>) = 1
[pid 3640] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0
[pid 3640] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3639] <... futex resumed>) = 0
[pid 3639] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3639] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3640] <... futex resumed>) = 1
[pid 3640] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4
[pid 3640] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3639] <... futex resumed>) = 0
[pid 3639] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3639] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3640] <... futex resumed>) = 1
[pid 3640] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0
[pid 3640] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3639] <... futex resumed>) = 0
[pid 3639] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3639] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3640] <... futex resumed>) = 1
[pid 3640] ioctl(4, NBD_SET_SOCK, 5) = 0
[pid 3640] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3639] <... futex resumed>) = 0
[pid 3640] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3639] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3640] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3639] <... futex resumed>) = 0
[pid 3640] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid 3639] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3640] <... openat resumed>) = 7
[pid 3640] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3639] <... futex resumed>) = 0
[pid 3640] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3639] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3640] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3639] <... futex resumed>) = 0
[pid 3640] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3639] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3640] <... ioctl resumed>) = 0
[pid 3640] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3639] <... futex resumed>) = 0
[pid 3639] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3639] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3640] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8
[pid 3640] write(8, "13", 2) = 2
[pid 3640] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3639] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[ 45.629919][ T3640] debugfs: out of free dentries, can not create file 'size_bytes'
[pid 3639] exit_group(0) = ?
[pid 3640] <... ioctl resumed>) = ?
[ 45.812408][ T3640] block nbd0: shutting down sockets
[pid 3640] +++ exited with 0 +++
[pid 3639] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3639, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3641 attached
, child_tidptr=0x5555569855d0) = 3641
[pid 3641] set_robust_list(0x5555569855e0, 24) = 0
[pid 3641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3641] setpgid(0, 0) = 0
[pid 3641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3641] write(3, "1000", 4) = 4
[pid 3641] close(3) = 0
[pid 3641] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3641] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3641] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3641] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3642], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3642
[pid 3641] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3641] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3642 attached
<unfinished ...>
[pid 3642] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3642] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3642] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3641] <... futex resumed>) = 0
[pid 3641] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3641] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3642] <... futex resumed>) = 1
[pid 3642] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0
[pid 3642] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3641] <... futex resumed>) = 0
[pid 3641] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3641] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3642] <... futex resumed>) = 1
[pid 3642] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4
[pid 3642] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3641] <... futex resumed>) = 0
[pid 3641] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3641] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3642] <... futex resumed>) = 1
[pid 3642] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0
[pid 3642] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3641] <... futex resumed>) = 0
[pid 3641] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3641] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3642] <... futex resumed>) = 1
[pid 3642] ioctl(4, NBD_SET_SOCK, 5) = 0
[pid 3642] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3642] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3641] <... futex resumed>) = 0
[pid 3641] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3642] <... futex resumed>) = 0
[pid 3641] <... futex resumed>) = 1
[pid 3642] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7
[pid 3641] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3642] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3642] <... futex resumed>) = 0
[pid 3642] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3641] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3641] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3642] <... ioctl resumed>) = 0
[pid 3642] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3641] <... futex resumed>) = 0
[pid 3642] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3641] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 3641] <... futex resumed>) = 0
[pid 3642] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR <unfinished ...>
[pid 3641] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3642] <... openat resumed>) = 8
[pid 3642] write(8, "13", 2) = 2
[pid 3642] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3641] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[ 45.958606][ T3642] debugfs: out of free dentries, can not create file 'size_bytes'
[pid 3641] exit_group(0 <unfinished ...>
[pid 3642] <... ioctl resumed>) = ?
[pid 3641] <... exit_group resumed>) = ?
[ 46.143589][ T3642] block nbd0: shutting down sockets
[pid 3642] +++ exited with 0 +++
[pid 3641] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3641, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555569855d0) = 3643
./strace-static-x86_64: Process 3643 attached
[pid 3643] set_robust_list(0x5555569855e0, 24) = 0
[pid 3643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3643] setpgid(0, 0) = 0
[pid 3643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3643] write(3, "1000", 4) = 4
[pid 3643] close(3) = 0
[pid 3643] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3643] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177ed2000
[pid 3643] mprotect(0x7f8177ed3000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3643] clone(child_stack=0x7f8177ef23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3644], tls=0x7f8177ef2700, child_tidptr=0x7f8177ef29d0) = 3644
[pid 3643] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3643] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3644 attached
<unfinished ...>
[pid 3644] set_robust_list(0x7f8177ef29e0, 24) = 0
[pid 3644] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid 3644] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3643] <... futex resumed>) = 0
[pid 3643] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3643] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3644] <... futex resumed>) = 1
[pid 3644] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0
[pid 3644] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3643] <... futex resumed>) = 0
[pid 3643] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3643] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3644] <... futex resumed>) = 1
[pid 3644] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4
[pid 3644] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3643] <... futex resumed>) = 0
[pid 3643] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3643] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3644] <... futex resumed>) = 1
[pid 3644] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0
[pid 3644] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3643] <... futex resumed>) = 0
[pid 3643] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3643] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3644] <... futex resumed>) = 1
[pid 3644] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3643] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[pid 3643] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid 3643] futex(0x7f8177fc94fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3643] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8177eb1000
[pid 3643] mprotect(0x7f8177eb2000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 3643] clone(child_stack=0x7f8177ed13f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3645], tls=0x7f8177ed1700, child_tidptr=0x7f8177ed19d0) = 3645
[pid 3643] futex(0x7f8177fc94f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3643] futex(0x7f8177fc94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3645 attached
<unfinished ...>
[pid 3645] set_robust_list(0x7f8177ed19e0, 24) = 0
[pid 3645] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7
[pid 3645] futex(0x7f8177fc94fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3643] <... futex resumed>) = 0
[pid 3643] futex(0x7f8177fc94f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3643] futex(0x7f8177fc94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3645] <... futex resumed>) = 1
[pid 3645] ioctl(4, NBD_SET_SOCK, 5 <unfinished ...>
[pid 3644] <... ioctl resumed>) = 0
[pid 3644] futex(0x7f8177fc94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 3644] futex(0x7f8177fc94e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3645] <... ioctl resumed>) = -1 EBUSY (Device or resource busy)
[pid 3645] futex(0x7f8177fc94fc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 3645] futex(0x7f8177fc94f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 3643] <... futex resumed>) = 0
[pid 3643] futex(0x7f8177fc94e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 3644] <... futex resumed>) = 0
[pid 3643] <... futex resumed>) = 1
[pid 3644] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8
[pid 3643] futex(0x7f8177fc94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 3644] write(8, "13", 2) = 2
[ 46.295134][ T3645] block nbd0: Device being setup by another task
[pid 3644] ioctl(7, NBD_DO_IT <unfinished ...>
[pid 3643] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[ 46.345273][ T3644] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
[ 46.357009][ T3644] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
[ 46.365511][ T3644] CPU: 0 PID: 3644 Comm: syz-executor411 Not tainted 5.19.0-rc6-syzkaller-00364-g9b59ec8d50a1 #0
[ 46.375989][ T3644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
[ 46.386295][ T3644] RIP: 0010:blk_mq_free_rqs+0x3f8/0x960
[ 46.391855][ T3644] Code: de e8 ac 90 90 fd 83 fb 3f 0f 87 57 21 58 05 e8 5e 94 90 fd b8 00 10 00 00 89 d9 48 d3 e0 4c 01 e8 48 89 44 24 08 48 8b 04 24 <0f> b6 00 84 c0 74 08 3c 03 0f 8e 96 03 00 00 41 8b 1f 31 ff 31 ed
[ 46.411661][ T3644] RSP: 0018:ffffc90002dffaa8 EFLAGS: 00010286
[ 46.417758][ T3644] RAX: dffffc0000000000 RBX: 0000000000000004 RCX: 0000000000000004
[ 46.425735][ T3644] RDX: ffff888024035880 RSI: ffffffff83e9d7c2 RDI: 0000000000000005
[ 46.433739][ T3644] RBP: ffff8880174a0000 R08: 0000000000000005 R09: 000000000000003f
[pid 3643] exit_group(0) = ?
[pid 3645] <... futex resumed>) = ?
[pid 3645] +++ exited with 0 +++
[ 46.441705][ T3644] R10: 0000000000000004 R11: 0000000000000001 R12: ffffc90002dffb60
[ 46.449684][ T3644] R13: ffff8880712c0000 R14: ffff88801d8fc800 R15: 0000000000000000
[ 46.457641][ T3644] FS: 00007f8177ef2700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
[ 46.466555][ T3644] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 46.473124][ T3644] CR2: 00007f8177f77860 CR3: 00000000747e6000 CR4: 0000000000350ef0
[ 46.481090][ T3644] Call Trace:
[ 46.484354][ T3644] <TASK>
[ 46.487283][ T3644] ? _raw_spin_unlock_irq+0x1f/0x40
[ 46.492516][ T3644] blk_mq_sched_free_rqs+0x1d4/0x250
[ 46.497792][ T3644] ? blk_mq_sched_insert_requests+0x9a0/0x9a0
[ 46.503850][ T3644] ? kobject_put+0xb9/0x540
[ 46.508370][ T3644] ? kobject_del+0x44/0x60
[ 46.512786][ T3644] elevator_switch_mq+0xc2/0x6c0
[ 46.517761][ T3644] blk_mq_update_nr_hw_queues+0x3ee/0xdf0
[ 46.523490][ T3644] ? blk_mq_init_queue+0x140/0x140
[ 46.528586][ T3644] ? tomoyo_execute_permission+0x4a0/0x4a0
[ 46.534391][ T3644] nbd_start_device+0x153/0xc30
[ 46.539258][ T3644] ? bpf_lsm_capable+0x5/0x10
[ 46.543921][ T3644] ? security_capable+0x8f/0xc0
[ 46.548760][ T3644] nbd_ioctl+0x5a5/0xbd0
[ 46.553166][ T3644] ? blkdev_bszset+0x1f0/0x1f0
[ 46.557915][ T3644] ? nbd_start_device+0xc30/0xc30
[ 46.562928][ T3644] ? find_held_lock+0x2d/0x110
[ 46.567699][ T3644] ? ptrace_notify+0xfa/0x140
[ 46.572360][ T3644] ? nbd_start_device+0xc30/0xc30
[ 46.577391][ T3644] blkdev_ioctl+0x36e/0x800
[ 46.581877][ T3644] ? blkdev_common_ioctl+0x1a50/0x1a50
[ 46.587326][ T3644] ? bpf_lsm_file_ioctl+0x5/0x10
[ 46.592250][ T3644] ? blkdev_common_ioctl+0x1a50/0x1a50
[ 46.597895][ T3644] __x64_sys_ioctl+0x193/0x200
[ 46.602666][ T3644] do_syscall_64+0x35/0xb0
[ 46.607094][ T3644] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 46.612977][ T3644] RIP: 0033:0x7f8177f45319
[ 46.617378][ T3644] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 b8 ff ff ff f7 d8 64 89 01 48
[ 46.636986][ T3644] RSP: 002b:00007f8177ef22e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 46.645383][ T3644] RAX: ffffffffffffffda RBX: 00007f8177fc94e0 RCX: 00007f8177f45319
[ 46.653346][ T3644] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[ 46.661314][ T3644] RBP: 00007f8177f96194 R08: 0000000000000002 R09: 0000000000003331
[ 46.669292][ T3644] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8177fc94ec
[ 46.677296][ T3644] R13: 00007f8177ef22f0 R14: 00007f8177fc94e8 R15: 0000000000000002
[ 46.685436][ T3644] </TASK>
[ 46.688455][ T3644] Modules linked in:
[ 46.693185][ T3644] ---[ end trace 0000000000000000 ]---
[ 46.698678][ T3644] RIP: 0010:blk_mq_free_rqs+0x3f8/0x960
[ 46.704232][ T3644] Code: de e8 ac 90 90 fd 83 fb 3f 0f 87 57 21 58 05 e8 5e 94 90 fd b8 00 10 00 00 89 d9 48 d3 e0 4c 01 e8 48 89 44 24 08 48 8b 04 24 <0f> b6 00 84 c0 74 08 3c 03 0f 8e 96 03 00 00 41 8b 1f 31 ff 31 ed
[ 46.723942][ T3644] RSP: 0018:ffffc90002dffaa8 EFLAGS: 00010286
[ 46.730040][ T3644] RAX: dffffc0000000000 RBX: 0000000000000004 RCX: 0000000000000004
[ 46.738044][ T3644] RDX: ffff888024035880 RSI: ffffffff83e9d7c2 RDI: 0000000000000005
[ 46.746037][ T3644] RBP: ffff8880174a0000 R08: 0000000000000005 R09: 000000000000003f
[ 46.753995][ T3644] R10: 0000000000000004 R11: 0000000000000001 R12: ffffc90002dffb60
[ 46.762082][ T3644] R13: ffff8880712c0000 R14: ffff88801d8fc800 R15: 0000000000000000
[ 46.770068][ T3644] FS: 00007f8177ef2700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
[ 46.779025][ T3644] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 46.785637][ T3644] CR2: 00007f8177f77860 CR3: 00000000747e6000 CR4: 0000000000350ef0
[ 46.793618][ T3644] Kernel panic - not syncing: Fatal exception
[ 46.800290][ T3644] Kernel Offset: disabled
[ 46.804610][ T3644] Rebooting in 86400 seconds..