./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2987304591 <...> forked to background, child pid 3184 no interfaces have a carrier [ 25.560581][ T3185] 8021q: adding VLAN 0 to HW filter on device bond0 [ 25.571314][ T3185] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.37' (ECDSA) to the list of known hosts. execve("./syz-executor2987304591", ["./syz-executor2987304591"], 0x7fffe4ff06e0 /* 10 vars */) = 0 brk(NULL) = 0x5555560ae000 brk(0x5555560aec40) = 0x5555560aec40 arch_prctl(ARCH_SET_FS, 0x5555560ae300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x5555560ae5d0) = 3606 set_robust_list(0x5555560ae5e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f1d42722430, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f1d42722b00}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f1d427224d0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f1d42722b00}, 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-executor2987304591", 4096) = 28 brk(0x5555560cfc40) = 0x5555560cfc40 brk(0x5555560d0000) = 0x5555560d0000 mprotect(0x7f1d427e3000, 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 3607 attached , child_tidptr=0x5555560ae5d0) = 3607 [pid 3607] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3607] setpgid(0, 0) = 0 [pid 3607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1000", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3607] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3607] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3607] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3608], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3608 ./strace-static-x86_64: Process 3608 attached [pid 3607] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] set_robust_list(0x7f1d427129e0, 24 [pid 3607] <... futex resumed>) = 0 [pid 3608] <... set_robust_list resumed>) = 0 [pid 3607] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3608] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3608] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3607] <... futex resumed>) = 0 [pid 3607] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] <... futex resumed>) = 0 [pid 3607] <... futex resumed>) = 1 [pid 3608] 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 [pid 3607] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] <... ioctl resumed>) = 0 [pid 3608] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3607] <... futex resumed>) = 0 [pid 3608] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3607] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... futex resumed>) = 0 [pid 3608] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3607] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] <... openat resumed>) = 4 [pid 3608] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3607] <... futex resumed>) = 0 [pid 3608] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3607] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... futex resumed>) = 0 [pid 3608] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3607] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] <... socketpair resumed>[5, 6]) = 0 [pid 3608] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... futex resumed>) = 0 [pid 3608] <... futex resumed>) = 1 [pid 3607] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] ioctl(4, NBD_SET_SOCK, 5 [pid 3607] <... futex resumed>) = 0 [pid 3607] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] <... ioctl resumed>) = 0 [pid 3608] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3607] <... futex resumed>) = 0 [pid 3608] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3607] <... futex resumed>) = 0 [pid 3607] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] <... openat resumed>) = 7 [pid 3608] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3607] <... futex resumed>) = 0 [pid 3608] ioctl(4, NBD_SET_SOCK, 5 [pid 3607] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3607] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] <... ioctl resumed>) = 0 [pid 3608] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3607] <... futex resumed>) = 0 [pid 3607] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3608] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3607] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] <... openat resumed>) = 8 [pid 3608] write(8, "16", 2) = 2 [pid 3608] ioctl(7, NBD_DO_IT [pid 3607] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3607] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3607] exit_group(0) = ? [pid 3608] <... ioctl resumed>) = ? syzkaller login: [ 49.213505][ T3608] block nbd0: shutting down sockets [pid 3608] +++ exited with 0 +++ [pid 3607] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3607, 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, child_tidptr=0x5555560ae5d0) = 3612 ./strace-static-x86_64: Process 3612 attached [pid 3612] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3612] setpgid(0, 0) = 0 [pid 3612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1000", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3612] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3612] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3612] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3613], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3613 [pid 3612] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3612] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3613 attached [pid 3613] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3613] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3613] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3612] <... futex resumed>) = 0 [pid 3612] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3612] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3613] <... futex resumed>) = 1 [pid 3613] 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 3613] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3612] <... futex resumed>) = 0 [pid 3612] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3612] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3613] <... futex resumed>) = 1 [pid 3613] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3613] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3612] <... futex resumed>) = 0 [pid 3612] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3612] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3613] <... futex resumed>) = 1 [pid 3613] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3613] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3612] <... futex resumed>) = 0 [pid 3612] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3612] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3613] <... futex resumed>) = 1 [pid 3613] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3613] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3612] <... futex resumed>) = 0 [pid 3613] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3612] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3613] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3612] <... futex resumed>) = 0 [pid 3613] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3612] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3613] <... openat resumed>) = 7 [pid 3613] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3613] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3612] <... futex resumed>) = 0 [pid 3612] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3613] <... futex resumed>) = 0 [pid 3613] ioctl(4, NBD_SET_SOCK, 5 [pid 3612] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3613] <... ioctl resumed>) = 0 [pid 3613] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3612] <... futex resumed>) = 0 [pid 3613] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3612] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] <... openat resumed>) = 8 [pid 3612] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3613] write(8, "16", 2) = 2 [pid 3613] ioctl(7, NBD_DO_IT [pid 3612] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3612] exit_group(0) = ? [pid 3613] <... ioctl resumed>) = ? [ 49.542980][ T3613] block nbd0: shutting down sockets [pid 3613] +++ exited with 0 +++ [pid 3612] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3612, 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=0x5555560ae5d0) = 3614 ./strace-static-x86_64: Process 3614 attached [pid 3614] set_robust_list(0x5555560ae5e0, 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(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3614] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3614] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3614] clone(child_stack=0x7f1d427123f0, 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=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3615 [pid 3614] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3614] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3615 attached [pid 3615] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3615] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3615] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] <... futex resumed>) = 0 [pid 3614] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3614] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] <... futex resumed>) = 1 [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) = 0 [pid 3615] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] <... futex resumed>) = 0 [pid 3614] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3614] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] <... futex resumed>) = 1 [pid 3615] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3615] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] <... futex resumed>) = 0 [pid 3614] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3614] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] <... futex resumed>) = 1 [pid 3615] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3615] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] <... futex resumed>) = 0 [pid 3614] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3614] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] <... futex resumed>) = 1 [pid 3615] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3615] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3614] <... futex resumed>) = 0 [pid 3615] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3614] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3614] <... futex resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3614] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] <... openat resumed>) = 7 [pid 3615] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3614] <... futex resumed>) = 0 [pid 3615] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3614] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3614] <... futex resumed>) = 0 [pid 3615] ioctl(4, NBD_SET_SOCK, 5 [pid 3614] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] <... ioctl resumed>) = 0 [pid 3615] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3614] <... futex resumed>) = 0 [pid 3615] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3614] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [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 [pid 3614] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] <... openat resumed>) = 8 [pid 3615] write(8, "16", 2) = 2 [pid 3615] ioctl(7, NBD_DO_IT [pid 3614] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 49.681657][ T3615] debugfs: out of free dentries, can not create file 'timeout' [pid 3614] exit_group(0) = ? [pid 3615] <... ioctl resumed>) = ? [ 49.862846][ T3615] block nbd0: shutting down sockets [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=3} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3616 attached , child_tidptr=0x5555560ae5d0) = 3616 [pid 3616] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3616] setpgid(0, 0) = 0 [pid 3616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1000", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3616] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3616] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3617], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3617 [pid 3616] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3617 attached [pid 3617] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3617] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3617] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] <... futex resumed>) = 1 [pid 3617] 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 3617] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] <... futex resumed>) = 1 [pid 3617] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3617] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] <... futex resumed>) = 1 [pid 3617] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3617] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3616] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] <... futex resumed>) = 1 [pid 3617] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3617] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3617] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] <... openat resumed>) = 7 [pid 3617] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] <... futex resumed>) = 0 [pid 3617] <... futex resumed>) = 1 [pid 3616] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3617] ioctl(4, NBD_SET_SOCK, 5 [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] <... ioctl resumed>) = 0 [pid 3617] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3617] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3616] <... futex resumed>) = 0 [pid 3616] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3617] <... futex resumed>) = 0 [pid 3616] <... futex resumed>) = 1 [pid 3617] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3616] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3617] write(8, "16", 2) = 2 [pid 3617] ioctl(7, NBD_DO_IT [pid 3616] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3616] exit_group(0) = ? [pid 3617] <... ioctl resumed>) = ? [ 50.204205][ T3617] block nbd0: shutting down sockets [pid 3617] +++ exited with 0 +++ [pid 3616] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3616, 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 3618 attached , child_tidptr=0x5555560ae5d0) = 3618 [pid 3618] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3618] setpgid(0, 0) = 0 [pid 3618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3618] write(3, "1000", 4) = 4 [pid 3618] close(3) = 0 [pid 3618] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3618] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3618] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3618] clone(child_stack=0x7f1d427123f0, 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 3619 attached , parent_tid=[3619], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3619 [pid 3618] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3618] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3619] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3619] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3619] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3618] <... futex resumed>) = 0 [pid 3619] 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 [pid 3618] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... futex resumed>) = 0 [pid 3619] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3618] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3619] <... futex resumed>) = 0 [pid 3618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3619] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3618] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3619] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3619] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3618] <... futex resumed>) = 0 [pid 3619] <... openat resumed>) = 4 [pid 3618] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3619] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3619] <... futex resumed>) = 0 [pid 3618] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3619] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3618] <... futex resumed>) = 0 [pid 3619] <... socketpair resumed>[5, 6]) = 0 [pid 3618] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3619] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3618] <... futex resumed>) = 0 [pid 3619] ioctl(4, NBD_SET_SOCK, 5 [pid 3618] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3618] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3619] <... ioctl resumed>) = 0 [pid 3619] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3618] <... futex resumed>) = 0 [pid 3619] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3618] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3619] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3618] <... futex resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3618] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3619] <... openat resumed>) = 7 [pid 3619] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3618] <... futex resumed>) = 0 [pid 3619] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3618] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3619] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3618] <... futex resumed>) = 0 [pid 3619] ioctl(4, NBD_SET_SOCK, 5 [pid 3618] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3619] <... ioctl resumed>) = 0 [pid 3619] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3618] <... futex resumed>) = 0 [pid 3619] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3618] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3619] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3618] <... futex resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3618] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3619] <... openat resumed>) = 8 [pid 3619] write(8, "16", 2) = 2 [pid 3619] ioctl(7, NBD_DO_IT [pid 3618] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3618] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3618] exit_group(0 [pid 3619] <... ioctl resumed>) = ? [pid 3618] <... exit_group resumed>) = ? [ 50.532163][ T3619] block nbd0: shutting down sockets [pid 3619] +++ exited with 0 +++ [pid 3618] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3618, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3620 attached , child_tidptr=0x5555560ae5d0) = 3620 [pid 3620] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3620] setpgid(0, 0) = 0 [pid 3620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3620] write(3, "1000", 4) = 4 [pid 3620] close(3) = 0 [pid 3620] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3620] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3620] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3621], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3621 [pid 3620] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3621 attached [pid 3621] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3621] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3621] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3620] <... futex resumed>) = 0 [pid 3620] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3621] <... futex resumed>) = 1 [pid 3621] 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 3621] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3620] <... futex resumed>) = 0 [pid 3620] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3621] <... futex resumed>) = 1 [pid 3621] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3621] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3620] <... futex resumed>) = 0 [pid 3620] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3621] <... futex resumed>) = 1 [pid 3621] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3621] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3620] <... futex resumed>) = 0 [pid 3620] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3621] <... futex resumed>) = 1 [pid 3621] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3621] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] <... futex resumed>) = 0 [pid 3621] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3620] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3620] <... futex resumed>) = 0 [pid 3621] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3620] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3621] <... openat resumed>) = 7 [pid 3621] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] <... futex resumed>) = 0 [pid 3621] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3620] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3620] <... futex resumed>) = 0 [pid 3621] ioctl(4, NBD_SET_SOCK, 5 [pid 3620] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3621] <... ioctl resumed>) = 0 [pid 3621] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] <... futex resumed>) = 0 [pid 3621] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3620] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3620] <... futex resumed>) = 0 [pid 3621] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3620] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3621] <... openat resumed>) = 8 [pid 3621] write(8, "16", 2) = 2 [pid 3621] ioctl(7, NBD_DO_IT [pid 3620] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3620] exit_group(0 [pid 3621] <... ioctl resumed>) = ? [pid 3620] <... exit_group resumed>) = ? [pid 3621] +++ exited with 0 +++ [pid 3620] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3620, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [ 50.860749][ T3621] block nbd0: shutting down sockets clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555560ae5d0) = 3622 ./strace-static-x86_64: Process 3622 attached [pid 3622] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3622] setpgid(0, 0) = 0 [pid 3622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3622] write(3, "1000", 4) = 4 [pid 3622] close(3) = 0 [pid 3622] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3622] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3622] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3622] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3623], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3623 [pid 3622] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3622] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3623 attached [pid 3623] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3623] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3623] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3622] <... futex resumed>) = 0 [pid 3622] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3622] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3623] <... futex resumed>) = 1 [pid 3623] 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 3623] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3622] <... futex resumed>) = 0 [pid 3622] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3622] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3623] <... futex resumed>) = 1 [pid 3623] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3623] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3622] <... futex resumed>) = 0 [pid 3622] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3622] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3623] <... futex resumed>) = 1 [pid 3623] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3623] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3622] <... futex resumed>) = 0 [pid 3623] <... futex resumed>) = 1 [pid 3622] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] ioctl(4, NBD_SET_SOCK, 5 [pid 3622] <... futex resumed>) = 0 [pid 3622] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3623] <... ioctl resumed>) = 0 [pid 3623] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3622] <... futex resumed>) = 0 [pid 3623] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3622] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3622] <... futex resumed>) = 0 [pid 3623] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3622] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3623] <... openat resumed>) = 7 [pid 3623] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3622] <... futex resumed>) = 0 [pid 3623] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3622] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3622] <... futex resumed>) = 0 [pid 3623] ioctl(4, NBD_SET_SOCK, 5 [pid 3622] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3623] <... ioctl resumed>) = 0 [pid 3623] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3622] <... futex resumed>) = 0 [pid 3623] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3622] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... openat resumed>) = 8 [pid 3622] <... futex resumed>) = 0 [pid 3622] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3623] write(8, "16", 2) = 2 [pid 3623] ioctl(7, NBD_DO_IT [pid 3622] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 51.003420][ T3623] debugfs: out of free dentries, can not create file 'timeout' [pid 3622] exit_group(0) = ? [pid 3623] <... ioctl resumed>) = ? [ 51.194603][ T3623] block nbd0: shutting down sockets [pid 3623] +++ exited with 0 +++ [pid 3622] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3622, 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=0x5555560ae5d0) = 3624 ./strace-static-x86_64: Process 3624 attached [pid 3624] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3624] setpgid(0, 0) = 0 [pid 3624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3624] write(3, "1000", 4) = 4 [pid 3624] close(3) = 0 [pid 3624] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3624] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3624] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3624] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3625], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3625 [pid 3624] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3624] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3625 attached [pid 3625] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3625] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3625] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3624] <... futex resumed>) = 0 [pid 3624] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3624] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3625] <... futex resumed>) = 1 [pid 3625] 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 3625] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3624] <... futex resumed>) = 0 [pid 3624] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3624] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3625] <... futex resumed>) = 1 [pid 3625] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3625] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3624] <... futex resumed>) = 0 [pid 3624] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3624] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3625] <... futex resumed>) = 1 [pid 3625] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3625] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3624] <... futex resumed>) = 0 [pid 3624] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3624] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3625] <... futex resumed>) = 1 [pid 3625] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3625] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3624] <... futex resumed>) = 0 [pid 3625] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3624] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3625] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3624] <... futex resumed>) = 0 [pid 3625] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3624] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3625] <... openat resumed>) = 7 [pid 3625] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3624] <... futex resumed>) = 0 [pid 3625] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3624] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3625] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3624] <... futex resumed>) = 0 [pid 3625] ioctl(4, NBD_SET_SOCK, 5 [pid 3624] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3625] <... ioctl resumed>) = 0 [pid 3625] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3624] <... futex resumed>) = 0 [pid 3625] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3624] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3625] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3624] <... futex resumed>) = 0 [pid 3625] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3624] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3625] <... openat resumed>) = 8 [pid 3625] write(8, "16", 2) = 2 [pid 3625] ioctl(7, NBD_DO_IT [pid 3624] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3624] exit_group(0 [pid 3625] <... ioctl resumed>) = ? [pid 3624] <... exit_group resumed>) = ? [pid 3625] +++ exited with 0 +++ [pid 3624] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3624, 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=0x5555560ae5d0) = 3626 ./strace-static-x86_64: Process 3626 attached [pid 3626] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3626] setpgid(0, 0) = 0 [pid 3626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3626] write(3, "1000", 4) = 4 [pid 3626] close(3) = 0 [pid 3626] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3626] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3626] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3626] clone(child_stack=0x7f1d427123f0, 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 3627 attached , parent_tid=[3627], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3627 [pid 3627] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3627] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3626] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3627] <... futex resumed>) = 0 [pid 3626] <... futex resumed>) = 1 [pid 3627] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3627] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3627] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3626] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3626] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3627] <... futex resumed>) = 0 [pid 3626] <... futex resumed>) = 1 [pid 3627] 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 3627] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3627] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3626] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3626] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3627] <... futex resumed>) = 0 [pid 3626] <... futex resumed>) = 1 [pid 3627] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3627] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3627] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3626] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3626] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3626] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3627] <... futex resumed>) = 0 [pid 3627] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3627] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3626] <... futex resumed>) = 0 [pid 3626] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3626] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 51.519818][ T3625] block nbd0: shutting down sockets [pid 3627] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3627] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3626] <... futex resumed>) = 0 [pid 3627] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3626] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3627] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3626] <... futex resumed>) = 0 [pid 3627] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3626] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3627] <... openat resumed>) = 7 [pid 3627] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3626] <... futex resumed>) = 0 [pid 3627] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3626] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3627] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3626] <... futex resumed>) = 0 [pid 3627] ioctl(4, NBD_SET_SOCK, 5 [pid 3626] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3627] <... ioctl resumed>) = 0 [pid 3627] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3626] <... futex resumed>) = 0 [pid 3627] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3626] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3627] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3626] <... futex resumed>) = 0 [pid 3627] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3626] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3627] <... openat resumed>) = 8 [pid 3627] write(8, "16", 2) = 2 [pid 3627] ioctl(7, NBD_DO_IT [pid 3626] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3626] exit_group(0) = ? [pid 3627] <... ioctl resumed>) = ? [ 51.822471][ T3627] block nbd0: shutting down sockets [pid 3627] +++ exited with 0 +++ [pid 3626] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3626, 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 3628 attached , child_tidptr=0x5555560ae5d0) = 3628 [pid 3628] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3628] setpgid(0, 0) = 0 [pid 3628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3628] write(3, "1000", 4) = 4 [pid 3628] close(3) = 0 [pid 3628] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3628] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3628] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3629], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3629 [pid 3628] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3629 attached [pid 3629] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3629] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3629] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3628] <... futex resumed>) = 0 [pid 3628] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3629] <... futex resumed>) = 1 [pid 3629] 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 3629] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3628] <... futex resumed>) = 0 [pid 3628] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3629] <... futex resumed>) = 1 [pid 3629] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3629] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3628] <... futex resumed>) = 0 [pid 3628] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3629] <... futex resumed>) = 1 [pid 3629] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3629] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3628] <... futex resumed>) = 0 [pid 3628] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3629] <... futex resumed>) = 1 [pid 3629] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3629] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3628] <... futex resumed>) = 0 [pid 3628] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3629] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3629] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3628] <... futex resumed>) = 0 [pid 3628] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3629] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3629] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3628] <... futex resumed>) = 0 [pid 3629] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3628] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3628] <... futex resumed>) = 0 [pid 3629] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3628] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3629] <... openat resumed>) = 8 [pid 3629] write(8, "16", 2) = 2 [pid 3629] ioctl(7, NBD_DO_IT [pid 3628] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 51.971183][ T3629] debugfs: out of free dentries, can not create file 'timeout' [pid 3628] exit_group(0) = ? [pid 3629] <... ioctl resumed>) = ? [pid 3629] +++ exited with 0 +++ [pid 3628] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3628, 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=0x5555560ae5d0) = 3630 [ 52.150826][ T3629] block nbd0: shutting down sockets ./strace-static-x86_64: Process 3630 attached [pid 3630] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3630] setpgid(0, 0) = 0 [pid 3630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3630] write(3, "1000", 4) = 4 [pid 3630] close(3) = 0 [pid 3630] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3630] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3630] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3630] clone(child_stack=0x7f1d427123f0, 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 3631 attached , parent_tid=[3631], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3631 [pid 3631] set_robust_list(0x7f1d427129e0, 24 [pid 3630] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3631] <... set_robust_list resumed>) = 0 [pid 3630] <... futex resumed>) = 0 [pid 3631] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3630] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3631] <... openat resumed>) = 3 [pid 3631] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3630] <... futex resumed>) = 0 [pid 3631] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3630] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3631] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3630] <... futex resumed>) = 0 [pid 3631] 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 [pid 3630] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3631] <... ioctl resumed>) = 0 [pid 3631] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3630] <... futex resumed>) = 0 [pid 3631] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3630] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3631] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3630] <... futex resumed>) = 0 [pid 3631] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3630] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3631] <... openat resumed>) = 4 [pid 3631] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3630] <... futex resumed>) = 0 [pid 3631] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3630] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3631] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3630] <... futex resumed>) = 0 [pid 3631] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3630] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3631] <... socketpair resumed>[5, 6]) = 0 [pid 3631] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3630] <... futex resumed>) = 0 [pid 3631] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3630] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3631] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3630] <... futex resumed>) = 0 [pid 3631] ioctl(4, NBD_SET_SOCK, 5 [pid 3630] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3631] <... ioctl resumed>) = 0 [pid 3631] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3630] <... futex resumed>) = 0 [pid 3630] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3631] <... futex resumed>) = 1 [pid 3630] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3631] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3631] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3630] <... futex resumed>) = 0 [pid 3631] ioctl(4, NBD_SET_SOCK, 5 [pid 3630] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3630] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3631] <... ioctl resumed>) = 0 [pid 3631] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3630] <... futex resumed>) = 0 [pid 3631] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3630] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3631] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3630] <... futex resumed>) = 0 [pid 3631] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3630] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3631] <... openat resumed>) = 8 [pid 3631] write(8, "16", 2) = 2 [pid 3631] ioctl(7, NBD_DO_IT [pid 3630] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 52.291491][ T3631] debugfs: out of free dentries, can not create file 'timeout' [pid 3630] exit_group(0 [pid 3631] <... ioctl resumed>) = ? [pid 3630] <... exit_group resumed>) = ? [pid 3631] +++ exited with 0 +++ [pid 3630] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3630, si_uid=0, si_status=0, si_utime=1, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555560ae5d0) = 3632 ./strace-static-x86_64: Process 3632 attached [pid 3632] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3632] setpgid(0, 0) = 0 [pid 3632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3632] write(3, "1000", 4) = 4 [pid 3632] close(3) = 0 [pid 3632] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3632] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3632] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3633], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3633 [pid 3632] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3633 attached [pid 3633] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3633] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3633] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3632] <... futex resumed>) = 0 [pid 3632] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] <... futex resumed>) = 1 [pid 3633] 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 3633] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3632] <... futex resumed>) = 0 [pid 3633] <... futex resumed>) = 1 [pid 3632] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3633] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3632] <... futex resumed>) = 0 [pid 3633] <... futex resumed>) = 1 [pid 3633] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3632] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] <... socketpair resumed>[5, 6]) = 0 [pid 3633] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3632] <... futex resumed>) = 0 [pid 3633] <... futex resumed>) = 1 [pid 3632] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3633] ioctl(4, NBD_SET_SOCK, 5 [pid 3632] <... futex resumed>) = 0 [ 52.480895][ T3631] block nbd0: shutting down sockets [pid 3632] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] <... ioctl resumed>) = 0 [pid 3633] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3632] <... futex resumed>) = 0 [pid 3633] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3632] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3633] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3632] <... futex resumed>) = 0 [pid 3633] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3632] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] <... openat resumed>) = 7 [pid 3633] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3632] <... futex resumed>) = 0 [pid 3632] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3633] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3632] <... futex resumed>) = 0 [pid 3633] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3632] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3633] <... openat resumed>) = 8 [pid 3632] <... futex resumed>) = 0 [pid 3632] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] write(8, "16", 2) = 2 [pid 3633] ioctl(7, NBD_DO_IT [pid 3632] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3632] exit_group(0 [pid 3633] <... ioctl resumed>) = ? [pid 3632] <... exit_group resumed>) = ? [pid 3633] +++ exited with 0 +++ [pid 3632] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3632, 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=0x5555560ae5d0) = 3634 ./strace-static-x86_64: Process 3634 attached [pid 3634] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3634] setpgid(0, 0) = 0 [pid 3634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3634] write(3, "1000", 4) = 4 [pid 3634] close(3) = 0 [pid 3634] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3634] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3634] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3635], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3635 [pid 3634] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3634] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3635 attached [pid 3635] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3635] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3635] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3634] <... futex resumed>) = 0 [pid 3635] <... futex resumed>) = 1 [pid 3634] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3634] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3635] 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 3635] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3634] <... futex resumed>) = 0 [pid 3635] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3634] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3634] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3635] <... openat resumed>) = 4 [pid 3635] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3634] <... futex resumed>) = 0 [pid 3635] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3634] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3634] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3635] <... socketpair resumed>[5, 6]) = 0 [pid 3635] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3634] <... futex resumed>) = 0 [pid 3635] <... futex resumed>) = 1 [pid 3634] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3635] ioctl(4, NBD_SET_SOCK, 5 [pid 3634] <... futex resumed>) = 0 [ 52.763511][ T3633] block nbd0: shutting down sockets [pid 3634] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3635] <... ioctl resumed>) = 0 [pid 3635] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3634] <... futex resumed>) = 0 [pid 3635] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3634] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3634] <... futex resumed>) = 0 [pid 3635] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3634] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3635] <... openat resumed>) = 7 [pid 3635] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3634] <... futex resumed>) = 0 [pid 3635] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3634] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3634] <... futex resumed>) = 0 [pid 3635] ioctl(4, NBD_SET_SOCK, 5 [pid 3634] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3635] <... ioctl resumed>) = 0 [pid 3635] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3634] <... futex resumed>) = 0 [pid 3635] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3634] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3634] <... futex resumed>) = 0 [pid 3635] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3634] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3635] <... openat resumed>) = 8 [pid 3635] write(8, "16", 2) = 2 [pid 3635] ioctl(7, NBD_DO_IT [pid 3634] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3634] exit_group(0 [pid 3635] <... ioctl resumed>) = ? [pid 3634] <... exit_group resumed>) = ? [ 53.064582][ T3635] block nbd0: shutting down sockets [pid 3635] +++ exited with 0 +++ [pid 3634] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3634, 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=0x5555560ae5d0) = 3636 ./strace-static-x86_64: Process 3636 attached [pid 3636] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3636] setpgid(0, 0) = 0 [pid 3636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3636] write(3, "1000", 4) = 4 [pid 3636] close(3) = 0 [pid 3636] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3636] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3636] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3637], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3637 [pid 3636] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3636] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3637 attached [pid 3637] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3637] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3637] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3636] <... futex resumed>) = 0 [pid 3636] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3636] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3637] <... futex resumed>) = 1 [pid 3637] 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 3637] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3636] <... futex resumed>) = 0 [pid 3636] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3636] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3637] <... futex resumed>) = 1 [pid 3637] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3637] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3636] <... futex resumed>) = 0 [pid 3636] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3636] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3637] <... futex resumed>) = 1 [pid 3637] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3637] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3636] <... futex resumed>) = 0 [pid 3636] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3636] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3637] <... futex resumed>) = 1 [pid 3637] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3637] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3636] <... futex resumed>) = 0 [pid 3637] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3636] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3636] <... futex resumed>) = 0 [pid 3637] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3636] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3637] <... openat resumed>) = 7 [pid 3637] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3636] <... futex resumed>) = 0 [pid 3637] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3636] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3636] <... futex resumed>) = 0 [pid 3637] ioctl(4, NBD_SET_SOCK, 5 [pid 3636] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3637] <... ioctl resumed>) = 0 [pid 3637] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3636] <... futex resumed>) = 0 [pid 3637] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3636] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3636] <... futex resumed>) = 0 [pid 3637] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3636] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3637] <... openat resumed>) = 8 [pid 3637] write(8, "16", 2) = 2 [pid 3637] ioctl(7, NBD_DO_IT [pid 3636] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 53.221374][ T3637] debugfs: out of free dentries, can not create file 'timeout' [pid 3636] exit_group(0 [pid 3637] <... ioctl resumed>) = ? [pid 3636] <... exit_group resumed>) = ? [pid 3637] +++ exited with 0 +++ [ 53.401144][ T3637] block nbd0: shutting down sockets [pid 3636] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3636, 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=0x5555560ae5d0) = 3638 ./strace-static-x86_64: Process 3638 attached [pid 3638] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3638] setpgid(0, 0) = 0 [pid 3638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3638] write(3, "1000", 4) = 4 [pid 3638] close(3) = 0 [pid 3638] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3638] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3638] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3638] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3639], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3639 [pid 3638] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3638] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3639 attached [pid 3639] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3639] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3639] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3638] <... futex resumed>) = 0 [pid 3638] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3638] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3639] <... futex resumed>) = 1 [pid 3639] 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 3639] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3638] <... futex resumed>) = 0 [pid 3638] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3638] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3639] <... futex resumed>) = 1 [pid 3639] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3639] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3638] <... futex resumed>) = 0 [pid 3639] <... futex resumed>) = 1 [pid 3638] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3639] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3638] <... futex resumed>) = 0 [pid 3638] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3639] <... socketpair resumed>[5, 6]) = 0 [pid 3639] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3638] <... futex resumed>) = 0 [pid 3638] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3639] <... futex resumed>) = 1 [pid 3638] <... futex resumed>) = 0 [pid 3639] ioctl(4, NBD_SET_SOCK, 5 [pid 3638] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3639] <... ioctl resumed>) = 0 [pid 3639] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3638] <... futex resumed>) = 0 [pid 3639] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3638] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3639] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3638] <... futex resumed>) = 0 [pid 3639] <... openat resumed>) = 7 [pid 3638] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3639] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3639] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 3638] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3639] ioctl(4, NBD_SET_SOCK, 5 [pid 3638] <... futex resumed>) = 0 [pid 3638] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3639] <... ioctl resumed>) = 0 [pid 3639] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3638] <... futex resumed>) = 0 [pid 3638] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3639] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3638] <... futex resumed>) = 0 [pid 3639] <... openat resumed>) = 8 [pid 3638] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3639] write(8, "16", 2) = 2 [pid 3639] ioctl(7, NBD_DO_IT [pid 3638] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 53.563352][ T3639] debugfs: out of free dentries, can not create file 'timeout' [pid 3638] exit_group(0) = ? [pid 3639] <... ioctl resumed>) = ? [ 53.743612][ T3639] block nbd0: shutting down sockets [pid 3639] +++ exited with 0 +++ [pid 3638] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3638, 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=0x5555560ae5d0) = 3640 ./strace-static-x86_64: Process 3640 attached [pid 3640] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3640] setpgid(0, 0) = 0 [pid 3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3640] write(3, "1000", 4) = 4 [pid 3640] close(3) = 0 [pid 3640] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3640] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3640] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3640] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3641], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3641 ./strace-static-x86_64: Process 3641 attached [pid 3640] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3640] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3641] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3641] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3641] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3640] <... futex resumed>) = 0 [pid 3640] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3640] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3641] 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 3641] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3640] <... futex resumed>) = 0 [pid 3640] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3640] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3641] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3641] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3640] <... futex resumed>) = 0 [pid 3640] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3640] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3641] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3641] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3640] <... futex resumed>) = 0 [pid 3640] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3640] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3641] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3641] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3640] <... futex resumed>) = 0 [pid 3641] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3640] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3640] <... futex resumed>) = 0 [pid 3641] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3640] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3641] <... openat resumed>) = 7 [pid 3641] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3640] <... futex resumed>) = 0 [pid 3641] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3640] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3640] <... futex resumed>) = 0 [pid 3641] ioctl(4, NBD_SET_SOCK, 5 [pid 3640] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3641] <... ioctl resumed>) = 0 [pid 3641] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3640] <... futex resumed>) = 0 [pid 3641] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3640] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3640] <... futex resumed>) = 0 [pid 3641] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3640] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3641] <... openat resumed>) = 8 [pid 3641] write(8, "16", 2) = 2 [pid 3641] ioctl(7, NBD_DO_IT [pid 3640] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3640] exit_group(0 [pid 3641] <... ioctl resumed>) = ? [pid 3640] <... exit_group resumed>) = ? [pid 3641] +++ exited with 0 +++ [pid 3640] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3640, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3642 attached , child_tidptr=0x5555560ae5d0) = 3642 [pid 3642] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3642] setpgid(0, 0) = 0 [pid 3642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3642] write(3, "1000", 4) = 4 [pid 3642] close(3) = 0 [pid 3642] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3642] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3642] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3642] clone(child_stack=0x7f1d427123f0, 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 3643 attached , parent_tid=[3643], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3643 [pid 3642] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3642] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3643] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3643] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3643] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3642] <... futex resumed>) = 0 [pid 3643] 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 [pid 3642] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3643] <... ioctl resumed>) = 0 [pid 3642] <... futex resumed>) = 0 [pid 3643] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3642] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3643] <... futex resumed>) = 0 [pid 3642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3642] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3643] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3642] <... futex resumed>) = 0 [pid 3643] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3642] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3643] <... futex resumed>) = 0 [pid 3642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3643] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3642] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3643] <... socketpair resumed>[5, 6]) = 0 [pid 3642] <... futex resumed>) = 0 [pid 3643] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3642] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3643] <... futex resumed>) = 0 [pid 3642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3643] ioctl(4, NBD_SET_SOCK, 5 [pid 3642] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 54.062197][ T3641] block nbd0: shutting down sockets [pid 3642] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3643] <... ioctl resumed>) = 0 [pid 3643] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3643] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3642] <... futex resumed>) = 0 [pid 3642] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3643] <... futex resumed>) = 0 [pid 3642] <... futex resumed>) = 1 [pid 3643] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3642] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3643] <... openat resumed>) = 7 [pid 3643] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3642] <... futex resumed>) = 0 [pid 3643] ioctl(4, NBD_SET_SOCK, 5 [pid 3642] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3642] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3643] <... ioctl resumed>) = 0 [pid 3643] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3642] <... futex resumed>) = 0 [pid 3643] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3642] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3643] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3642] <... futex resumed>) = 0 [pid 3643] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3642] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3643] <... openat resumed>) = 8 [pid 3643] write(8, "16", 2) = 2 [pid 3643] ioctl(7, NBD_DO_IT [pid 3642] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3642] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3642] exit_group(0 [pid 3643] <... ioctl resumed>) = ? [pid 3642] <... exit_group resumed>) = ? [ 54.385449][ T3643] block nbd0: shutting down sockets [pid 3643] +++ exited with 0 +++ [pid 3642] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3642, 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=0x5555560ae5d0) = 3644 ./strace-static-x86_64: Process 3644 attached [pid 3644] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3644] setpgid(0, 0) = 0 [pid 3644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3644] write(3, "1000", 4) = 4 [pid 3644] close(3) = 0 [pid 3644] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3644] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3644] clone(child_stack=0x7f1d427123f0, 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=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3645 ./strace-static-x86_64: Process 3645 attached [pid 3644] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3645] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3645] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3645] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3644] <... futex resumed>) = 0 [pid 3644] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3645] <... futex resumed>) = 1 [pid 3645] 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 3645] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3644] <... futex resumed>) = 0 [pid 3644] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3645] <... futex resumed>) = 1 [pid 3645] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3645] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3644] <... futex resumed>) = 0 [pid 3644] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3645] <... futex resumed>) = 1 [pid 3645] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3645] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3644] <... futex resumed>) = 0 [pid 3644] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3645] <... futex resumed>) = 1 [pid 3645] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3645] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3644] <... futex resumed>) = 0 [pid 3645] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3644] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3645] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3644] <... futex resumed>) = 0 [pid 3645] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3644] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3645] <... openat resumed>) = 7 [pid 3645] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3644] <... futex resumed>) = 0 [pid 3645] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3644] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3645] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3644] <... futex resumed>) = 0 [pid 3645] ioctl(4, NBD_SET_SOCK, 5 [pid 3644] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3645] <... ioctl resumed>) = 0 [pid 3645] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3644] <... futex resumed>) = 0 [pid 3645] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3644] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3645] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3644] <... futex resumed>) = 0 [pid 3645] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3644] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3645] <... openat resumed>) = 8 [pid 3645] write(8, "16", 2) = 2 [pid 3645] ioctl(7, NBD_DO_IT [pid 3644] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 54.542466][ T3645] debugfs: out of free dentries, can not create file 'timeout' [pid 3644] exit_group(0 [pid 3645] <... ioctl resumed>) = ? [pid 3644] <... exit_group resumed>) = ? [pid 3645] +++ exited with 0 +++ [ 54.723947][ T3645] block nbd0: shutting down sockets [pid 3644] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3644, 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=0x5555560ae5d0) = 3646 ./strace-static-x86_64: Process 3646 attached [pid 3646] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3646] setpgid(0, 0) = 0 [pid 3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3646] write(3, "1000", 4) = 4 [pid 3646] close(3) = 0 [pid 3646] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3646] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3646] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3646] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3647], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3647 [pid 3646] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3646] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3647 attached [pid 3647] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3647] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3647] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3646] <... futex resumed>) = 0 [pid 3646] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3646] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3647] <... futex resumed>) = 1 [pid 3647] 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 3647] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3646] <... futex resumed>) = 0 [pid 3646] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3646] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3647] <... futex resumed>) = 1 [pid 3647] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3647] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3646] <... futex resumed>) = 0 [pid 3646] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3646] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3647] <... futex resumed>) = 1 [pid 3647] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3647] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3646] <... futex resumed>) = 0 [pid 3646] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3646] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3647] <... futex resumed>) = 1 [pid 3647] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3647] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3646] <... futex resumed>) = 0 [pid 3647] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 3646] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3647] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3646] <... futex resumed>) = 0 [pid 3647] <... openat resumed>) = 7 [pid 3646] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3647] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3646] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3646] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3647] <... futex resumed>) = 1 [pid 3646] <... futex resumed>) = 0 [pid 3646] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} [pid 3647] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3647] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3646] <... futex resumed>) = 0 [pid 3646] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3646] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3647] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3647] write(8, "16", 2) = 2 [pid 3647] ioctl(7, NBD_DO_IT [pid 3646] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3646] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3646] exit_group(0) = ? [pid 3647] <... ioctl resumed>) = ? [ 55.042794][ T3647] block nbd0: shutting down sockets [pid 3647] +++ exited with 0 +++ [pid 3646] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, 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=0x5555560ae5d0) = 3648 ./strace-static-x86_64: Process 3648 attached [pid 3648] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3648] setpgid(0, 0) = 0 [pid 3648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3648] write(3, "1000", 4) = 4 [pid 3648] close(3) = 0 [pid 3648] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3648] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3648] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3649], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3649 [pid 3648] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3649 attached [pid 3649] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3649] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3649] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] <... futex resumed>) = 0 [pid 3648] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] <... futex resumed>) = 1 [pid 3649] 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 3649] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] <... futex resumed>) = 0 [pid 3648] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] <... futex resumed>) = 1 [pid 3649] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3649] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] <... futex resumed>) = 0 [pid 3648] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] <... futex resumed>) = 1 [pid 3649] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3649] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] <... futex resumed>) = 0 [pid 3648] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] <... futex resumed>) = 1 [pid 3649] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3649] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3648] <... futex resumed>) = 0 [pid 3649] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 3648] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3649] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3648] <... futex resumed>) = 0 [pid 3649] <... openat resumed>) = 7 [pid 3648] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3649] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3648] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3649] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3648] <... futex resumed>) = 0 [pid 3649] ioctl(4, NBD_SET_SOCK, 5 [pid 3648] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] <... ioctl resumed>) = 0 [pid 3649] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3648] <... futex resumed>) = 0 [pid 3649] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3648] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3649] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3648] <... futex resumed>) = 0 [pid 3649] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3648] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] <... openat resumed>) = 8 [pid 3649] write(8, "16", 2) = 2 [pid 3649] ioctl(7, NBD_DO_IT [pid 3648] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3648] exit_group(0) = ? [pid 3649] <... ioctl resumed>) = ? [ 55.394770][ T3649] block nbd0: shutting down sockets [pid 3649] +++ exited with 0 +++ [pid 3648] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3648, 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=0x5555560ae5d0) = 3650 ./strace-static-x86_64: Process 3650 attached [pid 3650] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3650] setpgid(0, 0) = 0 [pid 3650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3650] write(3, "1000", 4) = 4 [pid 3650] close(3) = 0 [pid 3650] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3650] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3650] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3651], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3651 ./strace-static-x86_64: Process 3651 attached [pid 3651] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3651] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3650] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3651] <... futex resumed>) = 0 [pid 3651] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3650] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3651] <... openat resumed>) = 3 [pid 3651] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3651] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3650] <... futex resumed>) = 0 [pid 3650] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3651] <... futex resumed>) = 0 [pid 3651] 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 3651] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3651] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3650] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3650] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3651] <... futex resumed>) = 0 [pid 3650] <... futex resumed>) = 1 [pid 3651] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3650] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3651] <... openat resumed>) = 4 [pid 3651] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3650] <... futex resumed>) = 0 [pid 3650] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3650] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3651] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3651] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3650] <... futex resumed>) = 0 [pid 3650] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3650] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3651] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3651] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3651] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3650] <... futex resumed>) = 0 [pid 3650] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3651] <... futex resumed>) = 0 [pid 3650] <... futex resumed>) = 1 [pid 3651] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3650] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3651] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3650] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3651] <... futex resumed>) = 0 [pid 3650] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3651] ioctl(4, NBD_SET_SOCK, 5 [pid 3650] <... futex resumed>) = 0 [pid 3650] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3651] <... ioctl resumed>) = 0 [pid 3651] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3650] <... futex resumed>) = 0 [pid 3651] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3650] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3651] <... futex resumed>) = 0 [pid 3650] <... futex resumed>) = 1 [pid 3651] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3650] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3651] write(8, "16", 2) = 2 [pid 3651] ioctl(7, NBD_DO_IT [pid 3650] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 55.553484][ T3651] debugfs: out of free dentries, can not create file 'timeout' [pid 3650] exit_group(0) = ? [pid 3651] <... ioctl resumed>) = ? [ 55.734124][ T3651] block nbd0: shutting down sockets [pid 3651] +++ exited with 0 +++ [pid 3650] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3652 attached , child_tidptr=0x5555560ae5d0) = 3652 [pid 3652] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3652] setpgid(0, 0) = 0 [pid 3652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3652] write(3, "1000", 4) = 4 [pid 3652] close(3) = 0 [pid 3652] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3652] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3652] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3652] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3653], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3653 [pid 3652] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3652] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3653 attached [pid 3653] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3653] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3653] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3652] <... futex resumed>) = 0 [pid 3652] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3652] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3653] <... futex resumed>) = 1 [pid 3653] 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 3653] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3652] <... futex resumed>) = 0 [pid 3652] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3652] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3653] <... futex resumed>) = 1 [pid 3653] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3653] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3652] <... futex resumed>) = 0 [pid 3652] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3652] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3653] <... futex resumed>) = 1 [pid 3653] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3653] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3652] <... futex resumed>) = 0 [pid 3652] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3652] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3653] <... futex resumed>) = 1 [pid 3653] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3653] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3652] <... futex resumed>) = 0 [pid 3653] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3652] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3653] <... openat resumed>) = 7 [pid 3652] <... futex resumed>) = 0 [pid 3653] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3652] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3653] <... futex resumed>) = 0 [pid 3652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3653] ioctl(4, NBD_SET_SOCK, 5 [pid 3652] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3652] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3653] <... ioctl resumed>) = 0 [pid 3653] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3652] <... futex resumed>) = 0 [pid 3653] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3652] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3653] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3652] <... futex resumed>) = 0 [pid 3653] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3652] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3653] <... openat resumed>) = 8 [pid 3653] write(8, "16", 2) = 2 [pid 3653] ioctl(7, NBD_DO_IT [pid 3652] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 55.862770][ T3653] debugfs: out of free dentries, can not create file 'timeout' [pid 3652] exit_group(0 [pid 3653] <... ioctl resumed>) = ? [pid 3652] <... exit_group resumed>) = ? [pid 3653] +++ exited with 0 +++ [pid 3652] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3652, 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=0x5555560ae5d0) = 3654 ./strace-static-x86_64: Process 3654 attached [pid 3654] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3654] setpgid(0, 0) = 0 [pid 3654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3654] write(3, "1000", 4) = 4 [pid 3654] close(3) = 0 [pid 3654] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3654] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3654] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3654] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3655], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3655 ./strace-static-x86_64: Process 3655 attached [pid 3654] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3655] set_robust_list(0x7f1d427129e0, 24 [pid 3654] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3655] <... set_robust_list resumed>) = 0 [pid 3655] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3655] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3654] <... futex resumed>) = 0 [pid 3654] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3654] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3655] 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 3655] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3654] <... futex resumed>) = 0 [pid 3654] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3655] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3654] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3655] <... openat resumed>) = 4 [pid 3655] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3654] <... futex resumed>) = 0 [pid 3654] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3655] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3654] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3655] <... socketpair resumed>[5, 6]) = 0 [pid 3655] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3654] <... futex resumed>) = 0 [pid 3654] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3655] ioctl(4, NBD_SET_SOCK, 5 [ 56.041896][ T3653] block nbd0: shutting down sockets [pid 3654] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3654] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3654] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426d1000 [pid 3654] mprotect(0x7f1d426d2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3654] clone(child_stack=0x7f1d426f13f0, 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 3656 attached [pid 3656] set_robust_list(0x7f1d426f19e0, 24 [pid 3654] <... clone resumed>, parent_tid=[3656], tls=0x7f1d426f1700, child_tidptr=0x7f1d426f19d0) = 3656 [pid 3656] <... set_robust_list resumed>) = 0 [pid 3654] futex(0x7f1d427e94f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3654] futex(0x7f1d427e94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3656] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3656] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3654] <... futex resumed>) = 0 [pid 3656] ioctl(4, NBD_SET_SOCK, 5 [pid 3654] futex(0x7f1d427e94f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3654] futex(0x7f1d427e94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3655] <... ioctl resumed>) = 0 [pid 3655] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3655] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3654] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3654] futex(0x7f1d427e94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3654] futex(0x7f1d427e94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3654] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3655] <... futex resumed>) = 0 [pid 3654] <... futex resumed>) = 1 [pid 3655] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3654] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3656] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 3655] <... openat resumed>) = 8 [pid 3655] write(8, "16", 2 [pid 3656] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3655] <... write resumed>) = 2 [pid 3656] <... futex resumed>) = 0 [pid 3655] ioctl(7, NBD_DO_IT [pid 3656] futex(0x7f1d427e94f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3654] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 56.178481][ T3656] block nbd0: Device being setup by another task [pid 3654] exit_group(0 [pid 3656] <... futex resumed>) = ? [pid 3654] <... exit_group resumed>) = ? [pid 3656] +++ exited with 0 +++ [pid 3655] <... ioctl resumed>) = ? [ 56.366959][ T3655] block nbd0: shutting down sockets [pid 3655] +++ exited with 0 +++ [pid 3654] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3654, 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=0x5555560ae5d0) = 3657 ./strace-static-x86_64: Process 3657 attached [pid 3657] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3657] setpgid(0, 0) = 0 [pid 3657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3657] write(3, "1000", 4) = 4 [pid 3657] close(3) = 0 [pid 3657] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3657] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3657] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3657] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3658], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3658 [pid 3657] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3657] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3658 attached [pid 3658] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3658] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3658] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3657] <... futex resumed>) = 0 [pid 3657] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3657] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3658] <... futex resumed>) = 1 [pid 3658] 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 3658] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3657] <... futex resumed>) = 0 [pid 3657] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3657] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3658] <... futex resumed>) = 1 [pid 3658] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3658] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3657] <... futex resumed>) = 0 [pid 3657] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3657] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3658] <... futex resumed>) = 1 [pid 3658] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3658] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3657] <... futex resumed>) = 0 [pid 3657] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3657] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3658] <... futex resumed>) = 1 [pid 3658] ioctl(4, NBD_SET_SOCK, 5 [pid 3657] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3657] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3657] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3657] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426d1000 [pid 3657] mprotect(0x7f1d426d2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3657] clone(child_stack=0x7f1d426f13f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3659], tls=0x7f1d426f1700, child_tidptr=0x7f1d426f19d0) = 3659 [pid 3657] futex(0x7f1d427e94f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3657] futex(0x7f1d427e94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3659 attached [pid 3659] set_robust_list(0x7f1d426f19e0, 24) = 0 [pid 3659] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3659] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3657] <... futex resumed>) = 0 [pid 3657] futex(0x7f1d427e94f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3657] futex(0x7f1d427e94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3659] <... futex resumed>) = 1 [pid 3659] ioctl(4, NBD_SET_SOCK, 5 [pid 3658] <... ioctl resumed>) = 0 [pid 3658] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3658] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3659] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 3659] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3657] <... futex resumed>) = 0 [pid 3657] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3659] <... futex resumed>) = 1 [pid 3657] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3659] futex(0x7f1d427e94f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3658] <... futex resumed>) = 0 [pid 3658] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3658] write(8, "16", 2) = 2 [pid 3658] ioctl(7, NBD_DO_IT [pid 3657] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 56.518414][ T3659] block nbd0: Device being setup by another task [ 56.528155][ T3658] debugfs: out of free dentries, can not create file 'timeout' [pid 3657] exit_group(0 [pid 3659] <... futex resumed>) = ? [pid 3657] <... exit_group resumed>) = ? [pid 3659] +++ exited with 0 +++ [pid 3658] <... ioctl resumed>) = ? [pid 3658] +++ exited with 0 +++ [pid 3657] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3657, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- restart_syscall(<... resuming interrupted clone ...>) = 0 [ 56.710480][ T3658] block nbd0: shutting down sockets clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555560ae5d0) = 3660 ./strace-static-x86_64: Process 3660 attached [pid 3660] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3660] setpgid(0, 0) = 0 [pid 3660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3660] write(3, "1000", 4) = 4 [pid 3660] close(3) = 0 [pid 3660] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3660] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3660] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3660] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3661], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3661 [pid 3660] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3660] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3661 attached [pid 3661] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3661] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3661] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3660] <... futex resumed>) = 0 [pid 3660] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3660] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3661] <... futex resumed>) = 1 [pid 3661] 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 3661] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3660] <... futex resumed>) = 0 [pid 3660] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3660] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3661] <... futex resumed>) = 1 [pid 3661] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3661] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3660] <... futex resumed>) = 0 [pid 3660] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3660] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3661] <... futex resumed>) = 1 [pid 3661] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3661] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3660] <... futex resumed>) = 0 [pid 3660] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3660] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3661] <... futex resumed>) = 1 [pid 3661] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3661] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3660] <... futex resumed>) = 0 [pid 3661] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3660] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3661] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3660] <... futex resumed>) = 0 [pid 3661] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3660] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3661] <... openat resumed>) = 7 [pid 3661] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3660] <... futex resumed>) = 0 [pid 3661] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3660] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3661] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3660] <... futex resumed>) = 0 [pid 3661] ioctl(4, NBD_SET_SOCK, 5 [pid 3660] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3661] <... ioctl resumed>) = 0 [pid 3661] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3660] <... futex resumed>) = 0 [pid 3661] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3660] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3661] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3660] <... futex resumed>) = 0 [pid 3661] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3660] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3661] <... openat resumed>) = 8 [pid 3661] write(8, "16", 2) = 2 [pid 3661] ioctl(7, NBD_DO_IT [pid 3660] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 56.891275][ T3661] kobject_add_internal failed for 0 (error: -12 parent: mq) [pid 3660] exit_group(0 [pid 3661] <... ioctl resumed>) = ? [pid 3660] <... exit_group resumed>) = ? [pid 3661] +++ exited with 0 +++ [ 57.028687][ T3661] block nbd0: shutting down sockets [pid 3660] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3660, 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, child_tidptr=0x5555560ae5d0) = 3662 ./strace-static-x86_64: Process 3662 attached [pid 3662] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3662] setpgid(0, 0) = 0 [pid 3662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3662] write(3, "1000", 4) = 4 [pid 3662] close(3) = 0 [pid 3662] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3662] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3662] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3662] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3663], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3663 [pid 3662] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3662] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3663 attached [pid 3663] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3663] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3663] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3662] <... futex resumed>) = 0 [pid 3663] <... futex resumed>) = 1 [pid 3662] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3663] 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 [pid 3662] <... futex resumed>) = 0 [pid 3663] <... ioctl resumed>) = 0 [pid 3662] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3663] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3663] <... futex resumed>) = 0 [pid 3662] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3663] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3662] <... futex resumed>) = 0 [pid 3662] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3663] <... openat resumed>) = 4 [pid 3663] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3662] <... futex resumed>) = 0 [pid 3663] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3662] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3662] <... futex resumed>) = 0 [pid 3663] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3662] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3663] <... socketpair resumed>[5, 6]) = 0 [pid 3663] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3662] <... futex resumed>) = 0 [pid 3662] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3662] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3663] <... futex resumed>) = 1 [pid 3663] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3663] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3662] <... futex resumed>) = 0 [pid 3663] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3662] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3662] <... futex resumed>) = 0 [pid 3663] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3662] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3663] <... openat resumed>) = 7 [pid 3663] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3662] <... futex resumed>) = 0 [pid 3663] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3662] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3662] <... futex resumed>) = 0 [pid 3663] ioctl(4, NBD_SET_SOCK, 5 [pid 3662] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3663] <... ioctl resumed>) = 0 [pid 3663] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3662] <... futex resumed>) = 0 [pid 3663] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3662] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3662] <... futex resumed>) = 0 [pid 3663] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3662] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3663] <... openat resumed>) = 8 [pid 3663] write(8, "16", 2) = 2 [pid 3663] ioctl(7, NBD_DO_IT [pid 3662] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3662] exit_group(0) = ? [pid 3663] <... ioctl resumed>) = ? [ 57.381882][ T3663] block nbd0: shutting down sockets [pid 3663] +++ exited with 0 +++ [pid 3662] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3662, 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=0x5555560ae5d0) = 3664 ./strace-static-x86_64: Process 3664 attached [pid 3664] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3664] setpgid(0, 0) = 0 [pid 3664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3664] write(3, "1000", 4) = 4 [pid 3664] close(3) = 0 [pid 3664] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3664] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3664] clone(child_stack=0x7f1d427123f0, 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 3665 attached , parent_tid=[3665], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3665 [pid 3665] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3665] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3664] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3665] <... futex resumed>) = 0 [pid 3664] <... futex resumed>) = 1 [pid 3665] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3665] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3665] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3664] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3664] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3665] <... futex resumed>) = 0 [pid 3665] 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 [pid 3664] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3665] <... ioctl resumed>) = 0 [pid 3665] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3664] <... futex resumed>) = 0 [pid 3664] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3664] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3665] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3665] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3664] <... futex resumed>) = 0 [pid 3664] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3664] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3665] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3665] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3664] <... futex resumed>) = 0 [pid 3664] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3664] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3665] ioctl(4, NBD_SET_SOCK, 5 [pid 3664] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3664] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426d1000 [pid 3664] mprotect(0x7f1d426d2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3664] clone(child_stack=0x7f1d426f13f0, 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 3666 attached , parent_tid=[3666], tls=0x7f1d426f1700, child_tidptr=0x7f1d426f19d0) = 3666 [pid 3666] set_robust_list(0x7f1d426f19e0, 24) = 0 [pid 3665] <... ioctl resumed>) = 0 [pid 3665] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3665] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3666] futex(0x7f1d427e94f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3664] futex(0x7f1d427e94f8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3666] <... futex resumed>) = 0 [pid 3666] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3664] futex(0x7f1d427e94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3666] <... openat resumed>) = 7 [pid 3666] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3666] futex(0x7f1d427e94f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3664] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3665] <... futex resumed>) = 0 [pid 3664] <... futex resumed>) = 1 [pid 3665] ioctl(4, NBD_SET_SOCK, 5 [pid 3664] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3665] <... ioctl resumed>) = 0 [pid 3665] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3665] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3664] <... futex resumed>) = 0 [pid 3664] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3665] <... futex resumed>) = 0 [pid 3664] <... futex resumed>) = 1 [pid 3665] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3664] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3665] <... openat resumed>) = 8 [pid 3665] write(8, "16", 2) = 2 [pid 3665] ioctl(7, NBD_DO_IT [pid 3664] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 57.571753][ T3665] debugfs: out of free dentries, can not create file 'timeout' [pid 3664] exit_group(0 [pid 3666] <... futex resumed>) = ? [pid 3664] <... exit_group resumed>) = ? [pid 3666] +++ exited with 0 +++ [pid 3665] <... ioctl resumed>) = ? [ 57.754101][ T3665] block nbd0: shutting down sockets [pid 3665] +++ exited with 0 +++ [pid 3664] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3664, 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=0x5555560ae5d0) = 3667 ./strace-static-x86_64: Process 3667 attached [pid 3667] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3667] setpgid(0, 0) = 0 [pid 3667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3667] write(3, "1000", 4) = 4 [pid 3667] close(3) = 0 [pid 3667] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3667] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3667] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3668], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3668 [pid 3667] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3667] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3668 attached [pid 3668] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3668] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3668] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3667] <... futex resumed>) = 0 [pid 3668] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3667] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3668] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3667] <... futex resumed>) = 0 [pid 3668] 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 [pid 3667] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3668] <... ioctl resumed>) = 0 [pid 3668] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3667] <... futex resumed>) = 0 [pid 3668] <... futex resumed>) = 1 [pid 3667] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3668] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3667] <... futex resumed>) = 0 [pid 3667] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3668] <... openat resumed>) = 4 [pid 3668] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3667] <... futex resumed>) = 0 [pid 3668] <... futex resumed>) = 1 [pid 3667] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3668] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3667] <... futex resumed>) = 0 [pid 3667] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3668] <... socketpair resumed>[5, 6]) = 0 [pid 3668] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3667] <... futex resumed>) = 0 [pid 3668] <... futex resumed>) = 1 [pid 3667] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3668] ioctl(4, NBD_SET_SOCK, 5 [pid 3667] <... futex resumed>) = 0 [pid 3667] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3668] <... ioctl resumed>) = 0 [pid 3668] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3667] <... futex resumed>) = 0 [pid 3668] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3667] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3668] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3667] <... futex resumed>) = 0 [pid 3668] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3667] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3668] <... openat resumed>) = 7 [pid 3668] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3667] <... futex resumed>) = 0 [pid 3668] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3667] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3668] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3667] <... futex resumed>) = 0 [pid 3668] ioctl(4, NBD_SET_SOCK, 5 [pid 3667] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3668] <... ioctl resumed>) = 0 [pid 3668] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3667] <... futex resumed>) = 0 [pid 3667] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3667] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3668] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3668] write(8, "16", 2) = 2 [pid 3668] ioctl(7, NBD_DO_IT [pid 3667] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3667] exit_group(0) = ? [pid 3668] <... ioctl resumed>) = ? [pid 3668] +++ exited with 0 +++ [pid 3667] +++ exited with 0 +++ [ 58.069212][ T3668] block nbd0: shutting down sockets --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3667, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3669 attached , child_tidptr=0x5555560ae5d0) = 3669 [pid 3669] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3669] setpgid(0, 0) = 0 [pid 3669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3669] write(3, "1000", 4) = 4 [pid 3669] close(3) = 0 [pid 3669] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3669] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3669] clone(child_stack=0x7f1d427123f0, 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 3670 attached , parent_tid=[3670], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3670 [pid 3670] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3670] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3669] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3670] <... futex resumed>) = 0 [pid 3670] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3670] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3670] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3669] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3669] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3670] <... futex resumed>) = 0 [pid 3669] <... futex resumed>) = 1 [pid 3670] 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 3670] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3670] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3669] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3669] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3670] <... futex resumed>) = 0 [pid 3670] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3670] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3670] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3669] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3669] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3670] <... futex resumed>) = 0 [pid 3669] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3670] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3670] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3670] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3669] <... futex resumed>) = 0 [pid 3669] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3670] <... futex resumed>) = 0 [pid 3669] <... futex resumed>) = 1 [pid 3669] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3670] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3670] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3669] <... futex resumed>) = 0 [pid 3669] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3669] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3670] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3670] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3669] <... futex resumed>) = 0 [pid 3669] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3669] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3670] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3670] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3669] <... futex resumed>) = 0 [pid 3669] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3669] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3670] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3670] write(8, "16", 2) = 2 [pid 3670] ioctl(7, NBD_DO_IT [pid 3669] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 58.243027][ T3670] debugfs: out of free dentries, can not create file 'timeout' [pid 3669] exit_group(0) = ? [pid 3670] <... ioctl resumed>) = ? [ 58.421502][ T3670] block nbd0: shutting down sockets [pid 3670] +++ exited with 0 +++ [pid 3669] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3669, 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=0x5555560ae5d0) = 3671 ./strace-static-x86_64: Process 3671 attached [pid 3671] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3671] setpgid(0, 0) = 0 [pid 3671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3671] write(3, "1000", 4) = 4 [pid 3671] close(3) = 0 [pid 3671] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3671] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3671] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3671] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3672], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3672 [pid 3671] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3671] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3672 attached [pid 3672] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3672] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3672] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3671] <... futex resumed>) = 0 [pid 3671] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3671] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3672] <... futex resumed>) = 1 [pid 3672] 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 3672] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3671] <... futex resumed>) = 0 [pid 3671] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3671] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3672] <... futex resumed>) = 1 [pid 3672] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3672] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3671] <... futex resumed>) = 0 [pid 3671] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3671] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3672] <... futex resumed>) = 1 [pid 3672] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3672] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3671] <... futex resumed>) = 0 [pid 3671] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3671] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3672] <... futex resumed>) = 1 [pid 3672] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3672] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3671] <... futex resumed>) = 0 [pid 3672] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3671] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3672] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3671] <... futex resumed>) = 0 [pid 3672] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3671] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3672] <... openat resumed>) = 7 [pid 3672] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3671] <... futex resumed>) = 0 [pid 3672] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3671] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3672] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3671] <... futex resumed>) = 0 [pid 3672] ioctl(4, NBD_SET_SOCK, 5 [pid 3671] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3672] <... ioctl resumed>) = 0 [pid 3672] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3671] <... futex resumed>) = 0 [pid 3672] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3671] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3672] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3671] <... futex resumed>) = 0 [pid 3672] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3671] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3672] <... openat resumed>) = 8 [pid 3672] write(8, "16", 2) = 2 [pid 3672] ioctl(7, NBD_DO_IT [pid 3671] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3671] exit_group(0 [pid 3672] <... ioctl resumed>) = ? [pid 3671] <... exit_group resumed>) = ? [pid 3672] +++ exited with 0 +++ [pid 3671] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3671, 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=0x5555560ae5d0) = 3673 ./strace-static-x86_64: Process 3673 attached [pid 3673] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3673] setpgid(0, 0) = 0 [pid 3673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3673] write(3, "1000", 4) = 4 [pid 3673] close(3) = 0 [pid 3673] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3673] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3673] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3673] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3674], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3674 [pid 3673] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3673] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3674 attached [pid 3674] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3674] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3674] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3673] <... futex resumed>) = 0 [pid 3673] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3673] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3674] <... futex resumed>) = 1 [pid 3674] 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 3674] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3673] <... futex resumed>) = 0 [pid 3673] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3673] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3674] <... futex resumed>) = 1 [pid 3674] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3674] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3673] <... futex resumed>) = 0 [pid 3673] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3673] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3674] <... futex resumed>) = 1 [pid 3674] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3674] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3673] <... futex resumed>) = 0 [pid 3673] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3673] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3674] <... futex resumed>) = 1 [ 58.751417][ T3672] block nbd0: shutting down sockets [pid 3674] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3674] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3673] <... futex resumed>) = 0 [pid 3673] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3673] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3674] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3674] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3673] <... futex resumed>) = 0 [pid 3673] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3673] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3674] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3674] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3673] <... futex resumed>) = 0 [pid 3674] <... futex resumed>) = 1 [pid 3673] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3673] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3674] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3674] write(8, "16", 2) = 2 [pid 3674] ioctl(7, NBD_DO_IT [pid 3673] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3673] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3673] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3673] exit_group(0 [pid 3674] <... ioctl resumed>) = ? [pid 3673] <... exit_group resumed>) = ? [pid 3674] +++ exited with 0 +++ [pid 3673] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3673, 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=0x5555560ae5d0) = 3675 ./strace-static-x86_64: Process 3675 attached [pid 3675] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3675] setpgid(0, 0) = 0 [pid 3675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3675] write(3, "1000", 4) = 4 [pid 3675] close(3) = 0 [pid 3675] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3675] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3675] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3675] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3676], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3676 [pid 3675] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3675] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3676 attached [pid 3676] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3676] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3676] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3675] <... futex resumed>) = 0 [pid 3675] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3675] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3676] <... futex resumed>) = 1 [pid 3676] 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 3676] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3675] <... futex resumed>) = 0 [pid 3675] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3675] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3676] <... futex resumed>) = 1 [pid 3676] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3676] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3675] <... futex resumed>) = 0 [pid 3675] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3675] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3676] <... futex resumed>) = 1 [pid 3676] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3676] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3675] <... futex resumed>) = 0 [pid 3675] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3675] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3676] <... futex resumed>) = 1 [ 59.060941][ T3674] block nbd0: shutting down sockets [pid 3676] ioctl(4, NBD_SET_SOCK, 5 [pid 3675] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3676] <... ioctl resumed>) = 0 [pid 3675] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3676] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3675] <... futex resumed>) = 0 [pid 3676] <... futex resumed>) = 0 [pid 3675] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3676] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3675] <... mmap resumed>) = 0x7f1d426d1000 [pid 3675] mprotect(0x7f1d426d2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3675] clone(child_stack=0x7f1d426f13f0, 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 3677 attached [pid 3677] set_robust_list(0x7f1d426f19e0, 24 [pid 3675] <... clone resumed>, parent_tid=[3677], tls=0x7f1d426f1700, child_tidptr=0x7f1d426f19d0) = 3677 [pid 3677] <... set_robust_list resumed>) = 0 [pid 3675] futex(0x7f1d427e94f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3677] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3675] futex(0x7f1d427e94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3677] <... openat resumed>) = 7 [pid 3677] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3675] <... futex resumed>) = 0 [pid 3677] futex(0x7f1d427e94f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3675] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3676] <... futex resumed>) = 0 [pid 3675] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3676] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3676] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3676] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3675] <... futex resumed>) = 0 [pid 3675] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3676] <... futex resumed>) = 0 [pid 3675] <... futex resumed>) = 1 [pid 3676] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3675] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3676] write(8, "16", 2) = 2 [pid 3676] ioctl(7, NBD_DO_IT [pid 3675] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 59.182511][ T3676] debugfs: out of free dentries, can not create file 'timeout' [pid 3675] exit_group(0) = ? [pid 3677] <... futex resumed>) = ? [pid 3676] <... ioctl resumed>) = ? [pid 3677] +++ exited with 0 +++ [ 59.363960][ T3676] block nbd0: shutting down sockets [pid 3676] +++ exited with 0 +++ [pid 3675] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3675, 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 3678 attached , child_tidptr=0x5555560ae5d0) = 3678 [pid 3678] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3678] setpgid(0, 0) = 0 [pid 3678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3678] write(3, "1000", 4) = 4 [pid 3678] close(3) = 0 [pid 3678] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3678] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3678] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3678] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3679], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3679 [pid 3678] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3678] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3679 attached [pid 3679] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3679] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3679] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3678] <... futex resumed>) = 0 [pid 3678] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3678] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3679] <... futex resumed>) = 1 [pid 3679] 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 3679] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3678] <... futex resumed>) = 0 [pid 3678] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3678] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3679] <... futex resumed>) = 1 [pid 3679] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3679] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3678] <... futex resumed>) = 0 [pid 3678] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3678] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3679] <... futex resumed>) = 1 [pid 3679] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3679] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3678] <... futex resumed>) = 0 [pid 3678] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3678] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3679] <... futex resumed>) = 1 [pid 3679] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3679] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3678] <... futex resumed>) = 0 [pid 3679] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3678] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3679] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3678] <... futex resumed>) = 0 [pid 3679] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3678] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3679] <... openat resumed>) = 7 [pid 3679] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3678] <... futex resumed>) = 0 [pid 3679] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3678] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3679] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3678] <... futex resumed>) = 0 [pid 3679] ioctl(4, NBD_SET_SOCK, 5 [pid 3678] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3679] <... ioctl resumed>) = 0 [pid 3679] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3678] <... futex resumed>) = 0 [pid 3678] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3678] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3679] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3679] write(8, "16", 2) = 2 [pid 3679] ioctl(7, NBD_DO_IT [pid 3678] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3678] exit_group(0) = ? [pid 3679] <... ioctl resumed>) = ? [ 59.691632][ T3679] block nbd0: shutting down sockets [pid 3679] +++ exited with 0 +++ [pid 3678] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3678, 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=0x5555560ae5d0) = 3680 ./strace-static-x86_64: Process 3680 attached [pid 3680] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3680] setpgid(0, 0) = 0 [pid 3680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3680] write(3, "1000", 4) = 4 [pid 3680] close(3) = 0 [pid 3680] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3680] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3680] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3681], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3681 [pid 3680] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3681 attached [pid 3681] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3681] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3681] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3680] <... futex resumed>) = 0 [pid 3680] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3681] <... futex resumed>) = 1 [pid 3681] 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 3681] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3680] <... futex resumed>) = 0 [pid 3680] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3681] <... futex resumed>) = 1 [pid 3681] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3681] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3680] <... futex resumed>) = 0 [pid 3680] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3681] <... futex resumed>) = 1 [pid 3681] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3681] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3680] <... futex resumed>) = 0 [pid 3680] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3681] <... futex resumed>) = 1 [pid 3681] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3681] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3680] <... futex resumed>) = 0 [pid 3681] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3680] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3681] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3680] <... futex resumed>) = 0 [pid 3681] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3680] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3681] <... openat resumed>) = 7 [pid 3681] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3680] <... futex resumed>) = 0 [pid 3681] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3680] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3681] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3680] <... futex resumed>) = 0 [pid 3681] ioctl(4, NBD_SET_SOCK, 5 [pid 3680] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3681] <... ioctl resumed>) = 0 [pid 3681] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3680] <... futex resumed>) = 0 [pid 3681] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3680] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3681] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3680] <... futex resumed>) = 0 [pid 3681] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3680] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3681] <... openat resumed>) = 8 [pid 3681] write(8, "16", 2) = 2 [pid 3681] ioctl(7, NBD_DO_IT [pid 3680] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 59.849166][ T3681] debugfs: out of free dentries, can not create file 'timeout' [pid 3680] exit_group(0) = ? [pid 3681] <... ioctl resumed>) = ? [pid 3681] +++ exited with 0 +++ [pid 3680] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3680, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [ 60.030682][ T3681] block nbd0: shutting down sockets clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555560ae5d0) = 3682 ./strace-static-x86_64: Process 3682 attached [pid 3682] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3682] setpgid(0, 0) = 0 [pid 3682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3682] write(3, "1000", 4) = 4 [pid 3682] close(3) = 0 [pid 3682] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3682] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3682] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3682] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3683], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3683 [pid 3682] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3682] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3683 attached [pid 3683] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3683] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3683] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3682] <... futex resumed>) = 0 [pid 3682] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3682] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3683] <... futex resumed>) = 1 [pid 3683] 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 3683] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3682] <... futex resumed>) = 0 [pid 3682] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3682] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3683] <... futex resumed>) = 1 [pid 3683] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3683] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3682] <... futex resumed>) = 0 [pid 3682] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3682] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3683] <... futex resumed>) = 1 [pid 3683] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3683] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3682] <... futex resumed>) = 0 [pid 3682] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3682] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3683] <... futex resumed>) = 1 [pid 3683] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3683] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3682] <... futex resumed>) = 0 [pid 3683] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3682] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3683] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3682] <... futex resumed>) = 0 [pid 3683] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3682] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3683] <... openat resumed>) = 7 [pid 3683] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3682] <... futex resumed>) = 0 [pid 3683] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3682] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3683] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3682] <... futex resumed>) = 0 [pid 3683] ioctl(4, NBD_SET_SOCK, 5 [pid 3682] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3683] <... ioctl resumed>) = 0 [pid 3683] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3682] <... futex resumed>) = 0 [pid 3683] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3682] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3683] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3682] <... futex resumed>) = 0 [pid 3683] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3682] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3683] <... openat resumed>) = 8 [pid 3683] write(8, "16", 2) = 2 [pid 3683] ioctl(7, NBD_DO_IT [pid 3682] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3682] exit_group(0) = ? [pid 3683] <... ioctl resumed>) = ? [pid 3683] +++ exited with 0 +++ [pid 3682] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3682, 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=0x5555560ae5d0) = 3684 [ 60.371090][ T3683] block nbd0: shutting down sockets ./strace-static-x86_64: Process 3684 attached [pid 3684] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3684] setpgid(0, 0) = 0 [pid 3684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3684] write(3, "1000", 4) = 4 [pid 3684] close(3) = 0 [pid 3684] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3684] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3684] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3684] clone(child_stack=0x7f1d427123f0, 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 3685 attached , parent_tid=[3685], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3685 [pid 3684] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3685] set_robust_list(0x7f1d427129e0, 24 [pid 3684] <... futex resumed>) = 0 [pid 3684] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3685] <... set_robust_list resumed>) = 0 [pid 3685] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3685] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3684] <... futex resumed>) = 0 [pid 3685] <... futex resumed>) = 1 [pid 3684] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3684] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3685] 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 3685] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3684] <... futex resumed>) = 0 [pid 3685] <... futex resumed>) = 1 [pid 3684] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3684] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3685] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3685] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3684] <... futex resumed>) = 0 [pid 3685] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3684] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3685] <... socketpair resumed>[5, 6]) = 0 [pid 3684] <... futex resumed>) = 0 [pid 3685] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3684] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3685] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3684] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3684] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3685] <... futex resumed>) = 0 [pid 3684] <... futex resumed>) = 1 [pid 3685] ioctl(4, NBD_SET_SOCK, 5 [pid 3684] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3685] <... ioctl resumed>) = 0 [pid 3685] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3685] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3684] <... futex resumed>) = 0 [pid 3684] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3685] <... futex resumed>) = 0 [pid 3684] <... futex resumed>) = 1 [pid 3685] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3685] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3684] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3685] <... futex resumed>) = 0 [pid 3685] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3684] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3684] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3685] <... futex resumed>) = 0 [pid 3684] <... futex resumed>) = 1 [pid 3685] ioctl(4, NBD_SET_SOCK, 5 [pid 3684] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3685] <... ioctl resumed>) = 0 [pid 3685] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3685] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3684] <... futex resumed>) = 0 [pid 3684] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3685] <... futex resumed>) = 0 [pid 3684] <... futex resumed>) = 1 [pid 3685] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3685] write(8, "16", 2 [pid 3684] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3685] <... write resumed>) = 2 [pid 3685] ioctl(7, NBD_DO_IT [pid 3684] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3684] exit_group(0) = ? [pid 3685] <... ioctl resumed>) = ? [ 60.694610][ T3685] block nbd0: shutting down sockets [pid 3685] +++ exited with 0 +++ [pid 3684] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3684, 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 3686 attached , child_tidptr=0x5555560ae5d0) = 3686 [pid 3686] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3686] setpgid(0, 0) = 0 [pid 3686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3686] write(3, "1000", 4) = 4 [pid 3686] close(3) = 0 [pid 3686] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3686] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3686] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3686] clone(child_stack=0x7f1d427123f0, 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 3687 attached , parent_tid=[3687], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3687 [pid 3687] set_robust_list(0x7f1d427129e0, 24 [pid 3686] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3686] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3687] <... set_robust_list resumed>) = 0 [pid 3687] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3687] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3686] <... futex resumed>) = 0 [pid 3686] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3687] <... futex resumed>) = 1 [pid 3686] <... futex resumed>) = 0 [pid 3687] 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 [pid 3686] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3687] <... ioctl resumed>) = 0 [pid 3687] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3686] <... futex resumed>) = 0 [pid 3686] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3687] <... futex resumed>) = 1 [pid 3686] <... futex resumed>) = 0 [pid 3687] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3686] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3687] <... openat resumed>) = 4 [pid 3687] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3686] <... futex resumed>) = 0 [pid 3687] <... futex resumed>) = 1 [pid 3686] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3686] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3687] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3687] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3686] <... futex resumed>) = 0 [pid 3687] <... futex resumed>) = 1 [pid 3686] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3686] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3687] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3687] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3686] <... futex resumed>) = 0 [pid 3687] <... futex resumed>) = 1 [pid 3686] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3686] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3687] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3687] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3686] <... futex resumed>) = 0 [pid 3687] <... futex resumed>) = 1 [pid 3686] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3686] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3687] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3687] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3687] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3686] <... futex resumed>) = 0 [pid 3686] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3687] <... futex resumed>) = 0 [pid 3687] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3686] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3687] <... openat resumed>) = 8 [pid 3687] write(8, "16", 2) = 2 [pid 3687] ioctl(7, NBD_DO_IT [pid 3686] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 60.853566][ T3687] debugfs: out of free dentries, can not create file 'timeout' [pid 3686] exit_group(0 [pid 3687] <... ioctl resumed>) = ? [pid 3686] <... exit_group resumed>) = ? [pid 3687] +++ exited with 0 +++ [ 61.032520][ T3687] block nbd0: shutting down sockets [pid 3686] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3686, 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=0x5555560ae5d0) = 3688 ./strace-static-x86_64: Process 3688 attached [pid 3688] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3688] setpgid(0, 0) = 0 [pid 3688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3688] write(3, "1000", 4) = 4 [pid 3688] close(3) = 0 [pid 3688] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3688] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3688] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3688] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3689], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3689 ./strace-static-x86_64: Process 3689 attached [pid 3689] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3689] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3688] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3689] <... futex resumed>) = 0 [pid 3688] <... futex resumed>) = 1 [pid 3689] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3688] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3689] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3689] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3688] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3688] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3689] <... futex resumed>) = 0 [pid 3688] <... futex resumed>) = 1 [pid 3689] 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 3689] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3689] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3688] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3688] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3689] <... futex resumed>) = 0 [pid 3689] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3689] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3689] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3688] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3688] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3689] <... futex resumed>) = 0 [pid 3688] <... futex resumed>) = 1 [pid 3689] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3689] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3689] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3688] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3688] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3689] <... futex resumed>) = 0 [pid 3688] <... futex resumed>) = 1 [pid 3689] ioctl(4, NBD_SET_SOCK, 5 [pid 3688] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3688] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3688] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426d1000 [pid 3688] mprotect(0x7f1d426d2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3688] clone(child_stack=0x7f1d426f13f0, 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 3690 attached [pid 3690] set_robust_list(0x7f1d426f19e0, 24 [pid 3688] <... clone resumed>, parent_tid=[3690], tls=0x7f1d426f1700, child_tidptr=0x7f1d426f19d0) = 3690 [pid 3690] <... set_robust_list resumed>) = 0 [pid 3688] futex(0x7f1d427e94f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3690] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3688] futex(0x7f1d427e94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3690] <... openat resumed>) = 7 [pid 3690] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3689] <... ioctl resumed>) = 0 [pid 3689] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3689] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3690] <... futex resumed>) = 1 [pid 3688] <... futex resumed>) = 0 [pid 3690] futex(0x7f1d427e94f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3688] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3689] <... futex resumed>) = 0 [pid 3688] <... futex resumed>) = 1 [pid 3689] ioctl(4, NBD_SET_SOCK, 5 [pid 3688] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3689] <... ioctl resumed>) = 0 [pid 3689] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3688] <... futex resumed>) = 0 [pid 3689] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3688] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3689] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3688] <... futex resumed>) = 0 [pid 3689] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3688] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3689] <... openat resumed>) = 8 [pid 3689] write(8, "16", 2) = 2 [pid 3689] ioctl(7, NBD_DO_IT [pid 3688] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 61.225708][ T3689] debugfs: out of free dentries, can not create file 'timeout' [pid 3688] exit_group(0 [pid 3690] <... futex resumed>) = ? [pid 3689] <... ioctl resumed>) = ? [pid 3688] <... exit_group resumed>) = ? [pid 3690] +++ exited with 0 +++ [ 61.404564][ T3689] block nbd0: shutting down sockets [pid 3689] +++ exited with 0 +++ [pid 3688] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3688, si_uid=0, si_status=0, si_utime=1, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555560ae5d0) = 3691 ./strace-static-x86_64: Process 3691 attached [pid 3691] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3691] setpgid(0, 0) = 0 [pid 3691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3691] write(3, "1000", 4) = 4 [pid 3691] close(3) = 0 [pid 3691] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3691] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3691] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3691] clone(child_stack=0x7f1d427123f0, 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 3692 attached , parent_tid=[3692], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3692 [pid 3691] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3691] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3692] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3692] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3692] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3691] <... futex resumed>) = 0 [pid 3691] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3691] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3692] <... futex resumed>) = 1 [pid 3692] 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 3692] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3691] <... futex resumed>) = 0 [pid 3691] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3691] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3692] <... futex resumed>) = 1 [pid 3692] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3692] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3691] <... futex resumed>) = 0 [pid 3691] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3691] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3692] <... futex resumed>) = 1 [pid 3692] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3692] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3691] <... futex resumed>) = 0 [pid 3691] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3691] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3692] <... futex resumed>) = 1 [pid 3692] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3692] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3691] <... futex resumed>) = 0 [pid 3692] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3691] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3692] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3691] <... futex resumed>) = 0 [pid 3692] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3691] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3692] <... openat resumed>) = 7 [pid 3692] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3691] <... futex resumed>) = 0 [pid 3692] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3691] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3692] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3691] <... futex resumed>) = 0 [pid 3692] ioctl(4, NBD_SET_SOCK, 5 [pid 3691] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3692] <... ioctl resumed>) = 0 [pid 3692] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3691] <... futex resumed>) = 0 [pid 3691] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3691] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3692] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3692] write(8, "16", 2) = 2 [pid 3692] ioctl(7, NBD_DO_IT [pid 3691] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3691] exit_group(0 [pid 3692] <... ioctl resumed>) = ? [pid 3691] <... exit_group resumed>) = ? [pid 3692] +++ exited with 0 +++ [pid 3691] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3691, 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=0x5555560ae5d0) = 3693 ./strace-static-x86_64: Process 3693 attached [pid 3693] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3693] setpgid(0, 0) = 0 [pid 3693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3693] write(3, "1000", 4) = 4 [pid 3693] close(3) = 0 [pid 3693] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3693] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3693] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3693] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3694], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3694 [pid 3693] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3693] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3694 attached [pid 3694] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3694] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3694] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3693] <... futex resumed>) = 0 [pid 3693] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3693] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3694] <... futex resumed>) = 1 [pid 3694] 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 3694] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3693] <... futex resumed>) = 0 [pid 3693] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3693] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3694] <... futex resumed>) = 1 [pid 3694] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3694] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3693] <... futex resumed>) = 0 [pid 3693] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3693] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3694] <... futex resumed>) = 1 [pid 3694] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3694] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3693] <... futex resumed>) = 0 [pid 3693] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3693] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3694] <... futex resumed>) = 1 [ 61.739804][ T3692] block nbd0: shutting down sockets [pid 3694] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3694] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3693] <... futex resumed>) = 0 [pid 3694] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3693] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3694] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3693] <... futex resumed>) = 0 [pid 3694] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3693] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3694] <... openat resumed>) = 7 [pid 3694] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3693] <... futex resumed>) = 0 [pid 3694] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3693] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3694] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3693] <... futex resumed>) = 0 [pid 3694] ioctl(4, NBD_SET_SOCK, 5 [pid 3693] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3694] <... ioctl resumed>) = 0 [pid 3694] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3693] <... futex resumed>) = 0 [pid 3694] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3693] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3694] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3693] <... futex resumed>) = 0 [pid 3694] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3693] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3694] <... openat resumed>) = 8 [pid 3694] write(8, "16", 2) = 2 [pid 3694] ioctl(7, NBD_DO_IT [pid 3693] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 61.841054][ T3694] debugfs: out of free dentries, can not create file 'timeout' [pid 3693] exit_group(0 [pid 3694] <... ioctl resumed>) = ? [pid 3693] <... exit_group resumed>) = ? [ 62.021010][ T3694] block nbd0: shutting down sockets [pid 3694] +++ exited with 0 +++ [pid 3693] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3693, 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=0x5555560ae5d0) = 3695 ./strace-static-x86_64: Process 3695 attached [pid 3695] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3695] setpgid(0, 0) = 0 [pid 3695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3695] write(3, "1000", 4) = 4 [pid 3695] close(3) = 0 [pid 3695] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3695] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3695] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3695] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3696], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3696 ./strace-static-x86_64: Process 3696 attached [pid 3696] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3696] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3695] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3696] <... futex resumed>) = 0 [pid 3696] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3695] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3696] <... openat resumed>) = 3 [pid 3696] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3696] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3695] <... futex resumed>) = 0 [pid 3695] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3696] <... futex resumed>) = 0 [pid 3696] 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 3696] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3696] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3695] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3695] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3696] <... futex resumed>) = 0 [pid 3696] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3696] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3696] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3695] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3695] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3696] <... futex resumed>) = 0 [pid 3695] <... futex resumed>) = 1 [pid 3695] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3696] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3696] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3695] <... futex resumed>) = 0 [pid 3696] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 3695] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3695] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3696] ioctl(4, NBD_SET_SOCK, 5 [pid 3695] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3695] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3695] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426d1000 [pid 3695] mprotect(0x7f1d426d2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3695] clone(child_stack=0x7f1d426f13f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3696] <... ioctl resumed>) = 0 [pid 3695] <... clone resumed>, parent_tid=[3697], tls=0x7f1d426f1700, child_tidptr=0x7f1d426f19d0) = 3697 [pid 3696] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3696] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 3697 attached [pid 3697] set_robust_list(0x7f1d426f19e0, 24) = 0 [pid 3697] futex(0x7f1d427e94f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3695] futex(0x7f1d427e94f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3697] <... futex resumed>) = 0 [pid 3695] <... futex resumed>) = 1 [pid 3695] futex(0x7f1d427e94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3697] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3697] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3695] <... futex resumed>) = 0 [pid 3697] futex(0x7f1d427e94f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3695] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3696] <... futex resumed>) = 0 [pid 3695] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3696] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3696] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3695] <... futex resumed>) = 0 [pid 3696] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3695] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3696] <... openat resumed>) = 8 [pid 3695] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3696] write(8, "16", 2) = 2 [pid 3696] ioctl(7, NBD_DO_IT [pid 3695] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3695] exit_group(0 [pid 3697] <... futex resumed>) = ? [pid 3697] +++ exited with 0 +++ [pid 3695] <... exit_group resumed>) = ? [pid 3696] <... ioctl resumed>) = ? [ 62.374186][ T3696] block nbd0: shutting down sockets [pid 3696] +++ exited with 0 +++ [pid 3695] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3695, 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=0x5555560ae5d0) = 3698 ./strace-static-x86_64: Process 3698 attached [pid 3698] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3698] setpgid(0, 0) = 0 [pid 3698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3698] write(3, "1000", 4) = 4 [pid 3698] close(3) = 0 [pid 3698] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3698] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3698] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3698] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3699], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3699 [pid 3698] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3698] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3699 attached [pid 3699] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3699] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3699] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3698] <... futex resumed>) = 0 [pid 3698] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3698] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3699] <... futex resumed>) = 1 [pid 3699] 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 3699] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3698] <... futex resumed>) = 0 [pid 3698] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3698] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3699] <... futex resumed>) = 1 [pid 3699] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3699] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3698] <... futex resumed>) = 0 [pid 3698] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3698] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3699] <... futex resumed>) = 1 [pid 3699] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3699] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3698] <... futex resumed>) = 0 [pid 3698] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3698] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3699] <... futex resumed>) = 1 [pid 3699] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3699] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3698] <... futex resumed>) = 0 [pid 3699] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3698] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3699] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3698] <... futex resumed>) = 0 [pid 3699] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3698] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3699] <... openat resumed>) = 7 [pid 3699] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3698] <... futex resumed>) = 0 [pid 3699] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3698] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3699] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3698] <... futex resumed>) = 0 [pid 3699] ioctl(4, NBD_SET_SOCK, 5 [pid 3698] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3699] <... ioctl resumed>) = 0 [pid 3699] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3698] <... futex resumed>) = 0 [pid 3699] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3698] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3699] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3698] <... futex resumed>) = 0 [pid 3699] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3698] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3699] <... openat resumed>) = 8 [pid 3699] write(8, "16", 2) = 2 [pid 3699] ioctl(7, NBD_DO_IT [pid 3698] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3698] exit_group(0) = ? [pid 3699] <... ioctl resumed>) = ? [ 62.700976][ T3699] block nbd0: shutting down sockets [pid 3699] +++ exited with 0 +++ [pid 3698] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3698, 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=0x5555560ae5d0) = 3700 ./strace-static-x86_64: Process 3700 attached [pid 3700] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3700] setpgid(0, 0) = 0 [pid 3700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3700] write(3, "1000", 4) = 4 [pid 3700] close(3) = 0 [pid 3700] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3700] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3700] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3700] clone(child_stack=0x7f1d427123f0, 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 3701 attached , parent_tid=[3701], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3701 [pid 3701] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3701] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3700] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3701] <... futex resumed>) = 0 [pid 3700] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3701] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3701] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3701] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3700] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3700] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3701] <... futex resumed>) = 0 [pid 3701] 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 [pid 3700] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3701] <... ioctl resumed>) = 0 [pid 3701] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3701] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3700] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3700] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3701] <... futex resumed>) = 0 [pid 3701] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3701] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3701] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3700] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3700] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3701] <... futex resumed>) = 0 [pid 3701] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3700] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3701] <... socketpair resumed>[5, 6]) = 0 [pid 3701] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3700] <... futex resumed>) = 0 [pid 3700] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3700] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3701] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3701] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3700] <... futex resumed>) = 0 [pid 3701] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3700] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3700] <... futex resumed>) = 0 [pid 3701] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3700] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3701] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3700] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3701] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3700] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3701] <... futex resumed>) = 0 [pid 3700] <... futex resumed>) = 1 [pid 3701] ioctl(4, NBD_SET_SOCK, 5 [pid 3700] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3701] <... ioctl resumed>) = 0 [pid 3701] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3700] <... futex resumed>) = 0 [pid 3701] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3700] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3700] <... futex resumed>) = 0 [pid 3700] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3701] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3701] write(8, "16", 2) = 2 [pid 3701] ioctl(7, NBD_DO_IT [pid 3700] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3700] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [ 62.871260][ T3701] debugfs: out of free dentries, can not create file 'timeout' [pid 3700] exit_group(0) = ? [pid 3701] <... ioctl resumed>) = ? [pid 3701] +++ exited with 0 +++ [pid 3700] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3700, 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=0x5555560ae5d0) = 3702 ./strace-static-x86_64: Process 3702 attached [ 63.050968][ T3701] block nbd0: shutting down sockets [pid 3702] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3702] setpgid(0, 0) = 0 [pid 3702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3702] write(3, "1000", 4) = 4 [pid 3702] close(3) = 0 [pid 3702] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3702] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3702] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3702] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3703], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3703 [pid 3702] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3702] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3703 attached [pid 3703] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3703] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3703] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3702] <... futex resumed>) = 0 [pid 3702] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3702] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3703] <... futex resumed>) = 1 [pid 3703] 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 3703] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3702] <... futex resumed>) = 0 [pid 3702] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3702] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3703] <... futex resumed>) = 1 [pid 3703] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3703] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3702] <... futex resumed>) = 0 [pid 3702] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3702] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3703] <... futex resumed>) = 1 [pid 3703] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3703] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3702] <... futex resumed>) = 0 [pid 3702] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3702] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3703] <... futex resumed>) = 1 [pid 3703] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3703] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3702] <... futex resumed>) = 0 [pid 3703] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3702] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3702] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3703] <... openat resumed>) = 7 [pid 3703] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3702] <... futex resumed>) = 0 [pid 3702] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3702] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3703] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3703] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3702] <... futex resumed>) = 0 [pid 3703] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3702] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3703] <... openat resumed>) = 8 [pid 3702] <... futex resumed>) = 0 [pid 3703] write(8, "16", 2 [pid 3702] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3703] <... write resumed>) = 2 [pid 3703] ioctl(7, NBD_DO_IT [pid 3702] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 63.192795][ T3703] debugfs: out of free dentries, can not create file 'timeout' [pid 3702] exit_group(0) = ? [pid 3703] <... ioctl resumed>) = ? [ 63.372880][ T3703] block nbd0: shutting down sockets [pid 3703] +++ exited with 0 +++ [pid 3702] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3702, 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 3704 attached , child_tidptr=0x5555560ae5d0) = 3704 [pid 3704] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3704] setpgid(0, 0) = 0 [pid 3704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3704] write(3, "1000", 4) = 4 [pid 3704] close(3) = 0 [pid 3704] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3704] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3704] clone(child_stack=0x7f1d427123f0, 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 3705 attached , parent_tid=[3705], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3705 [pid 3704] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3705] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3705] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3705] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3704] <... futex resumed>) = 0 [pid 3704] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3705] <... futex resumed>) = 1 [pid 3705] 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 3705] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3704] <... futex resumed>) = 0 [pid 3704] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3705] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3705] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3704] <... futex resumed>) = 0 [pid 3705] <... futex resumed>) = 1 [pid 3704] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3705] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3705] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3704] <... futex resumed>) = 0 [pid 3704] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3705] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3705] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3704] <... futex resumed>) = 0 [pid 3704] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3705] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3705] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3704] <... futex resumed>) = 0 [pid 3704] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3705] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3705] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3704] <... futex resumed>) = 0 [pid 3704] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3705] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3705] write(8, "16", 2) = 2 [pid 3705] ioctl(7, NBD_DO_IT [pid 3704] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3704] exit_group(0) = ? [pid 3705] <... ioctl resumed>) = ? [ 63.708148][ T3705] block nbd0: shutting down sockets [pid 3705] +++ exited with 0 +++ [pid 3704] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3704, 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=0x5555560ae5d0) = 3706 ./strace-static-x86_64: Process 3706 attached [pid 3706] set_robust_list(0x5555560ae5e0, 24) = 0 [pid 3706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3706] setpgid(0, 0) = 0 [pid 3706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3706] write(3, "1000", 4) = 4 [pid 3706] close(3) = 0 [pid 3706] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3706] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426f2000 [pid 3706] mprotect(0x7f1d426f3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3706] clone(child_stack=0x7f1d427123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3707], tls=0x7f1d42712700, child_tidptr=0x7f1d427129d0) = 3707 [pid 3706] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3706] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3707 attached [pid 3707] set_robust_list(0x7f1d427129e0, 24) = 0 [pid 3707] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3707] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3706] <... futex resumed>) = 0 [pid 3706] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3706] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3707] <... futex resumed>) = 1 [pid 3707] 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 3707] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3706] <... futex resumed>) = 0 [pid 3706] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3706] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3707] <... futex resumed>) = 1 [pid 3707] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3707] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3706] <... futex resumed>) = 0 [pid 3706] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3706] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3707] <... futex resumed>) = 1 [pid 3707] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3707] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3706] <... futex resumed>) = 0 [pid 3706] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3706] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3707] <... futex resumed>) = 1 [pid 3707] ioctl(4, NBD_SET_SOCK, 5 [pid 3706] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3706] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3706] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3706] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3706] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1d426d1000 [pid 3706] mprotect(0x7f1d426d2000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3706] clone(child_stack=0x7f1d426f13f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3708], tls=0x7f1d426f1700, child_tidptr=0x7f1d426f19d0) = 3708 [pid 3706] futex(0x7f1d427e94f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3706] futex(0x7f1d427e94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3708 attached [pid 3708] set_robust_list(0x7f1d426f19e0, 24) = 0 [pid 3708] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3708] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3706] <... futex resumed>) = 0 [pid 3706] futex(0x7f1d427e94f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3706] futex(0x7f1d427e94fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3708] <... futex resumed>) = 1 [pid 3708] ioctl(4, NBD_SET_SOCK, 5 [pid 3707] <... ioctl resumed>) = 0 [pid 3707] futex(0x7f1d427e94ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3707] futex(0x7f1d427e94e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3708] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 3708] futex(0x7f1d427e94fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3706] <... futex resumed>) = 0 [pid 3706] futex(0x7f1d427e94e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3707] <... futex resumed>) = 0 [pid 3706] <... futex resumed>) = 1 [pid 3707] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3706] futex(0x7f1d427e94ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3707] <... openat resumed>) = 8 [pid 3707] write(8, "16", 2) = 2 [pid 3707] ioctl(7, NBD_DO_IT [pid 3708] <... futex resumed>) = 1 [ 63.858406][ T3708] block nbd0: Device being setup by another task [pid 3708] futex(0x7f1d427e94f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3706] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 63.901390][ T3707] ------------[ cut here ]------------ [ 63.906866][ T3707] kernfs: can not remove 'nr_tags', no directory [ 63.913617][ T3707] WARNING: CPU: 1 PID: 3707 at fs/kernfs/dir.c:1577 kernfs_remove_by_name_ns+0xb0/0xe0 [ 63.923586][ T3707] Modules linked in: [ 63.927519][ T3707] CPU: 1 PID: 3707 Comm: syz-executor298 Not tainted 5.19.0-rc4-syzkaller #0 [ 63.937142][ T3707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.947959][ T3707] RIP: 0010:kernfs_remove_by_name_ns+0xb0/0xe0 [ 63.954565][ T3707] Code: 48 89 c3 e8 e2 54 6f ff 48 89 df e8 da e5 ff ff 31 db eb 29 e8 d1 54 6f ff 48 c7 c7 00 ca 9f 8a 4c 89 fe 31 c0 e8 c0 e9 37 ff <0f> 0b bb fe ff ff ff eb 12 e8 b2 54 6f ff bb fe ff ff ff 4c 89 e7 [ 63.974294][ T3707] RSP: 0018:ffffc9000325f9a8 EFLAGS: 00010246 [ 63.980588][ T3707] RAX: 7e17a5d5f68b2700 RBX: ffffffff8d1419a0 RCX: ffff88801e5d5880 [ 63.988642][ T3707] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 63.996727][ T3707] RBP: dffffc0000000000 R08: ffffffff816bcd1d R09: ffffed10173667e9 [ 64.004760][ T3707] R10: ffffed10173667e9 R11: 1ffff110173667e8 R12: ffffffff8d141968 [ 64.012821][ T3707] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8ae7d8c0 [ 64.020920][ T3707] FS: 00007f1d42712700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 64.029954][ T3707] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.036551][ T3707] CR2: 00007f1d427a64c0 CR3: 000000007004e000 CR4: 00000000003506f0 [pid 3706] exit_group(0 [pid 3708] <... futex resumed>) = ? [pid 3706] <... exit_group resumed>) = ? [pid 3708] +++ exited with 0 +++ [ 64.044587][ T3707] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.052617][ T3707] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.060672][ T3707] Call Trace: [ 64.063976][ T3707] [ 64.066935][ T3707] sysfs_remove_group+0x102/0x2b0 [ 64.072076][ T3707] sysfs_remove_groups+0x5b/0xb0 [ 64.077037][ T3707] __kobject_del+0x84/0x300 [ 64.081637][ T3707] kobject_del+0x41/0x60 [ 64.085906][ T3707] blk_mq_sysfs_unregister+0x235/0x320 [ 64.091649][ T3707] ? __blk_mq_register_dev+0x910/0x910 [ 64.097121][ T3707] ? elevator_switch_mq+0x583/0x6d0 [ 64.102387][ T3707] blk_mq_update_nr_hw_queues+0x647/0x12d0 [ 64.108238][ T3707] ? blk_mq_update_nr_requests+0x500/0x500 [ 64.114131][ T3707] ? blkdev_common_ioctl+0x6d6/0x2390 [ 64.119545][ T3707] ? mutex_lock_io_nested+0x60/0x60 [ 64.124762][ T3707] nbd_start_device+0x15d/0xb70 [ 64.129678][ T3707] ? bpf_lsm_capable+0x5/0x10 [ 64.134379][ T3707] ? security_capable+0xb1/0xd0 [ 64.139352][ T3707] nbd_ioctl+0x3b3/0xa40 [ 64.143620][ T3707] ? nbd_release+0x130/0x130 [ 64.148204][ T3707] ? memset+0x1f/0x40 [ 64.152264][ T3707] ? smack_file_ioctl+0x298/0x3a0 [ 64.157301][ T3707] ? smack_file_alloc_security+0xd0/0xd0 [ 64.162975][ T3707] ? nbd_release+0x130/0x130 [ 64.167598][ T3707] blkdev_ioctl+0x3a6/0x760 [ 64.172165][ T3707] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 64.177659][ T3707] ? bpf_lsm_file_ioctl+0x5/0x10 [ 64.182644][ T3707] ? security_file_ioctl+0x9d/0xb0 [ 64.187765][ T3707] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 64.193360][ T3707] __se_sys_ioctl+0xfb/0x170 [ 64.197976][ T3707] do_syscall_64+0x2b/0x70 [ 64.202476][ T3707] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 64.208453][ T3707] RIP: 0033:0x7f1d42765319 [ 64.212891][ T3707] 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 [ 64.232565][ T3707] RSP: 002b:00007f1d427122e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 64.241013][ T3707] RAX: ffffffffffffffda RBX: 00007f1d427e94e0 RCX: 00007f1d42765319 [ 64.249051][ T3707] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007 [ 64.257033][ T3707] RBP: 00007f1d427b6194 R08: 0000000000000002 R09: 0000000000003631 [ 64.265057][ T3707] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1d427e94ec [ 64.273090][ T3707] R13: 00007f1d427122f0 R14: 00007f1d427e94e8 R15: 0000000000000002 [ 64.281136][ T3707] [ 64.284164][ T3707] Kernel panic - not syncing: panic_on_warn set ... [ 64.290740][ T3707] CPU: 0 PID: 3707 Comm: syz-executor298 Not tainted 5.19.0-rc4-syzkaller #0 [ 64.299487][ T3707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.309538][ T3707] Call Trace: [ 64.312818][ T3707] [ 64.315738][ T3707] dump_stack_lvl+0x1e3/0x2cb [ 64.320413][ T3707] ? bfq_pos_tree_add_move+0x436/0x436 [ 64.325869][ T3707] ? panic+0x76e/0x76e [ 64.329948][ T3707] ? vscnprintf+0x59/0x80 [ 64.334265][ T3707] ? kernfs_remove_self+0x650/0x660 [ 64.339475][ T3707] panic+0x312/0x76e [ 64.343372][ T3707] ? __warn+0x131/0x220 [ 64.347526][ T3707] ? fb_is_primary_device+0xcc/0xcc [ 64.352729][ T3707] ? kernfs_remove_by_name_ns+0xb0/0xe0 [ 64.358271][ T3707] __warn+0x1fa/0x220 [ 64.362247][ T3707] ? kernfs_remove_by_name_ns+0xb0/0xe0 [ 64.367791][ T3707] report_bug+0x1b3/0x2d0 [ 64.372124][ T3707] handle_bug+0x3d/0x70 [ 64.376274][ T3707] exc_invalid_op+0x16/0x40 [ 64.380769][ T3707] asm_exc_invalid_op+0x1b/0x20 [ 64.385611][ T3707] RIP: 0010:kernfs_remove_by_name_ns+0xb0/0xe0 [ 64.391761][ T3707] Code: 48 89 c3 e8 e2 54 6f ff 48 89 df e8 da e5 ff ff 31 db eb 29 e8 d1 54 6f ff 48 c7 c7 00 ca 9f 8a 4c 89 fe 31 c0 e8 c0 e9 37 ff <0f> 0b bb fe ff ff ff eb 12 e8 b2 54 6f ff bb fe ff ff ff 4c 89 e7 [ 64.411360][ T3707] RSP: 0018:ffffc9000325f9a8 EFLAGS: 00010246 [ 64.417429][ T3707] RAX: 7e17a5d5f68b2700 RBX: ffffffff8d1419a0 RCX: ffff88801e5d5880 [ 64.425398][ T3707] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 64.433359][ T3707] RBP: dffffc0000000000 R08: ffffffff816bcd1d R09: ffffed10173667e9 [ 64.441324][ T3707] R10: ffffed10173667e9 R11: 1ffff110173667e8 R12: ffffffff8d141968 [ 64.449286][ T3707] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8ae7d8c0 [ 64.457258][ T3707] ? __wake_up_klogd+0xcd/0x100 [ 64.462112][ T3707] ? kernfs_remove_by_name_ns+0xb0/0xe0 [ 64.467651][ T3707] sysfs_remove_group+0x102/0x2b0 [ 64.472678][ T3707] sysfs_remove_groups+0x5b/0xb0 [ 64.477608][ T3707] __kobject_del+0x84/0x300 [ 64.482111][ T3707] kobject_del+0x41/0x60 [ 64.486346][ T3707] blk_mq_sysfs_unregister+0x235/0x320 [ 64.491803][ T3707] ? __blk_mq_register_dev+0x910/0x910 [ 64.497261][ T3707] ? elevator_switch_mq+0x583/0x6d0 [ 64.502458][ T3707] blk_mq_update_nr_hw_queues+0x647/0x12d0 [ 64.508265][ T3707] ? blk_mq_update_nr_requests+0x500/0x500 [ 64.514065][ T3707] ? blkdev_common_ioctl+0x6d6/0x2390 [ 64.519435][ T3707] ? mutex_lock_io_nested+0x60/0x60 [ 64.524632][ T3707] nbd_start_device+0x15d/0xb70 [ 64.529477][ T3707] ? bpf_lsm_capable+0x5/0x10 [ 64.534147][ T3707] ? security_capable+0xb1/0xd0 [ 64.538997][ T3707] nbd_ioctl+0x3b3/0xa40 [ 64.543238][ T3707] ? nbd_release+0x130/0x130 [ 64.547821][ T3707] ? memset+0x1f/0x40 [ 64.551791][ T3707] ? smack_file_ioctl+0x298/0x3a0 [ 64.556811][ T3707] ? smack_file_alloc_security+0xd0/0xd0 [ 64.562436][ T3707] ? nbd_release+0x130/0x130 [ 64.567019][ T3707] blkdev_ioctl+0x3a6/0x760 [ 64.571518][ T3707] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 64.576974][ T3707] ? bpf_lsm_file_ioctl+0x5/0x10 [ 64.581901][ T3707] ? security_file_ioctl+0x9d/0xb0 [ 64.587008][ T3707] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 64.592457][ T3707] __se_sys_ioctl+0xfb/0x170 [ 64.597044][ T3707] do_syscall_64+0x2b/0x70 [ 64.601453][ T3707] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 64.607336][ T3707] RIP: 0033:0x7f1d42765319 [ 64.611753][ T3707] 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 [ 64.631348][ T3707] RSP: 002b:00007f1d427122e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 64.639758][ T3707] RAX: ffffffffffffffda RBX: 00007f1d427e94e0 RCX: 00007f1d42765319 [ 64.647722][ T3707] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007 [ 64.655684][ T3707] RBP: 00007f1d427b6194 R08: 0000000000000002 R09: 0000000000003631 [ 64.663662][ T3707] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1d427e94ec [ 64.671623][ T3707] R13: 00007f1d427122f0 R14: 00007f1d427e94e8 R15: 0000000000000002 [ 64.679600][ T3707] [ 64.682885][ T3707] Kernel Offset: disabled [ 64.687280][ T3707] Rebooting in 86400 seconds..