./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1183993083 <...> DUID 00:04:9b:41:e3:df:54:6f:ca:1f:62:a0:1b:7c:64:71:74:ce forked to background, child pid 3186 [ 25.696747][ T3187] 8021q: adding VLAN 0 to HW filter on device bond0 [ 25.707213][ T3187] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.3' (ECDSA) to the list of known hosts. execve("./syz-executor1183993083", ["./syz-executor1183993083"], 0x7fffe3ed61e0 /* 10 vars */) = 0 brk(NULL) = 0x555556f4f000 brk(0x555556f4fc40) = 0x555556f4fc40 arch_prctl(ARCH_SET_FS, 0x555556f4f300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x555556f4f5d0) = 3607 set_robust_list(0x555556f4f5e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f3481de0480, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f3481de0b50}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f3481de0520, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3481de0b50}, 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-executor1183993083", 4096) = 28 brk(0x555556f70c40) = 0x555556f70c40 brk(0x555556f71000) = 0x555556f71000 mprotect(0x7f3481ea2000, 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 3608 attached , child_tidptr=0x555556f4f5d0) = 3608 [pid 3608] set_robust_list(0x555556f4f5e0, 24) = 0 [pid 3608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3608] setpgid(0, 0) = 0 [pid 3608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1000", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3608] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3481db0000 [pid 3608] mprotect(0x7f3481db1000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3608] clone(child_stack=0x7f3481dd03f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3609], tls=0x7f3481dd0700, child_tidptr=0x7f3481dd09d0) = 3609 [pid 3608] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3608] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3609 attached [pid 3609] set_robust_list(0x7f3481dd09e0, 24) = 0 [pid 3609] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3609] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3608] <... futex resumed>) = 0 [pid 3608] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3608] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3609] 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 3609] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3608] <... futex resumed>) = 0 [pid 3608] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3608] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3609] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3609] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3608] <... futex resumed>) = 0 [pid 3608] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3608] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3609] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3609] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3608] <... futex resumed>) = 0 [pid 3608] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3608] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3609] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3609] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3608] <... futex resumed>) = 0 [pid 3608] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3608] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3609] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3609] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3608] <... futex resumed>) = 0 [pid 3608] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3608] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3609] ioctl(7, NBD_SET_SOCK, 5) = 0 [pid 3609] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3608] <... futex resumed>) = 0 [pid 3608] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3609] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3608] <... futex resumed>) = 0 [pid 3608] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3609] <... openat resumed>) = 8 [pid 3609] write(8, "14", 2) = 2 [pid 3609] ioctl(7, NBD_DO_IT [pid 3608] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3608] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) syzkaller login: [ 48.007150][ T3609] Increasing nr_hw_queues to 2 fails, fallback to 1 [pid 3608] exit_group(0 [pid 3609] <... ioctl resumed>) = ? [pid 3608] <... exit_group resumed>) = ? [pid 3609] +++ exited with 0 +++ [pid 3608] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3608, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3613 attached , child_tidptr=0x555556f4f5d0) = 3613 [pid 3613] set_robust_list(0x555556f4f5e0, 24) = 0 [pid 3613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3613] setpgid(0, 0) = 0 [pid 3613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3613] write(3, "1000", 4) = 4 [pid 3613] close(3) = 0 [pid 3613] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3481db0000 [pid 3613] mprotect(0x7f3481db1000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3613] clone(child_stack=0x7f3481dd03f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3614], tls=0x7f3481dd0700, child_tidptr=0x7f3481dd09d0) = 3614 [pid 3613] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3614 attached [pid 3614] set_robust_list(0x7f3481dd09e0, 24) = 0 [pid 3614] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3614] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3613] <... futex resumed>) = 0 [pid 3613] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] <... futex resumed>) = 1 [pid 3614] 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 3614] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3613] <... futex resumed>) = 0 [pid 3613] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] <... futex resumed>) = 1 [pid 3614] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3614] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3613] <... futex resumed>) = 0 [pid 3613] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] <... futex resumed>) = 1 [pid 3614] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3614] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3613] <... futex resumed>) = 0 [pid 3613] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] <... futex resumed>) = 1 [ 48.149153][ T3609] block nbd0: shutting down sockets [pid 3614] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3614] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3613] <... futex resumed>) = 0 [pid 3613] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3614] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3613] <... futex resumed>) = 0 [pid 3613] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] ioctl(7, NBD_SET_SOCK, 5 [pid 3613] <... futex resumed>) = 0 [pid 3613] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] <... ioctl resumed>) = 0 [pid 3614] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3613] <... futex resumed>) = 0 [pid 3614] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3613] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] <... futex resumed>) = 0 [pid 3613] <... futex resumed>) = 1 [pid 3614] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3613] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] write(8, "14", 2) = 2 [pid 3614] ioctl(7, NBD_DO_IT [pid 3613] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3613] exit_group(0) = ? [pid 3614] <... ioctl resumed>) = ? [pid 3614] +++ exited with 0 +++ [pid 3613] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3613, 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 3615 attached , child_tidptr=0x555556f4f5d0) = 3615 [pid 3615] set_robust_list(0x555556f4f5e0, 24) = 0 [pid 3615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3615] setpgid(0, 0) = 0 [pid 3615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1000", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3615] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3481db0000 [pid 3615] mprotect(0x7f3481db1000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3615] clone(child_stack=0x7f3481dd03f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3616], tls=0x7f3481dd0700, child_tidptr=0x7f3481dd09d0) = 3616 [pid 3615] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3615] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3616 attached [pid 3616] set_robust_list(0x7f3481dd09e0, 24) = 0 [pid 3616] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3616] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] <... futex resumed>) = 0 [pid 3616] <... futex resumed>) = 1 [pid 3615] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] 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 3615] <... futex resumed>) = 0 [pid 3615] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3616] <... ioctl resumed>) = 0 [pid 3616] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3615] <... futex resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3615] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3615] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3616] <... openat resumed>) = 4 [pid 3616] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3615] <... futex resumed>) = 0 [pid 3616] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3615] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3615] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3616] <... socketpair resumed>[5, 6]) = 0 [pid 3616] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3615] <... futex resumed>) = 0 [pid 3615] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] ioctl(4, NBD_SET_SOCK, 5 [pid 3615] <... futex resumed>) = 0 [ 48.462003][ T3614] block nbd0: shutting down sockets [pid 3615] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3616] <... ioctl resumed>) = 0 [pid 3616] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3615] <... futex resumed>) = 0 [pid 3615] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3615] <... futex resumed>) = 0 [pid 3615] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3616] <... openat resumed>) = 7 [pid 3616] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3615] <... futex resumed>) = 0 [pid 3616] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3615] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3615] <... futex resumed>) = 0 [pid 3616] ioctl(7, NBD_SET_SOCK, 5 [pid 3615] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3616] <... ioctl resumed>) = 0 [pid 3616] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3615] <... futex resumed>) = 0 [pid 3616] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3615] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3615] <... futex resumed>) = 0 [pid 3615] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3616] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3616] write(8, "14", 2) = 2 [pid 3616] ioctl(7, NBD_DO_IT [pid 3615] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 48.566026][ T3616] debugfs: out of free dentries, can not create file 'timeout' [pid 3615] exit_group(0) = ? [pid 3616] <... ioctl resumed>) = ? [pid 3616] +++ exited with 0 +++ [pid 3615] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3615, 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 3617 attached , child_tidptr=0x555556f4f5d0) = 3617 [pid 3617] set_robust_list(0x555556f4f5e0, 24) = 0 [pid 3617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3617] setpgid(0, 0) = 0 [pid 3617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3617] write(3, "1000", 4) = 4 [pid 3617] close(3) = 0 [pid 3617] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3617] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3481db0000 [pid 3617] mprotect(0x7f3481db1000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3617] clone(child_stack=0x7f3481dd03f0, 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 3618 attached , parent_tid=[3618], tls=0x7f3481dd0700, child_tidptr=0x7f3481dd09d0) = 3618 [pid 3617] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3617] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3618] set_robust_list(0x7f3481dd09e0, 24) = 0 [pid 3618] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3618] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3617] <... futex resumed>) = 0 [pid 3618] 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 3617] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3617] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3618] <... ioctl resumed>) = 0 [pid 3618] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3617] <... futex resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3617] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3618] <... openat resumed>) = 4 [pid 3617] <... futex resumed>) = 0 [pid 3618] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3617] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3618] <... futex resumed>) = 0 [pid 3617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3618] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3617] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3618] <... socketpair resumed>[5, 6]) = 0 [pid 3617] <... futex resumed>) = 0 [pid 3618] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3617] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3618] <... futex resumed>) = 0 [pid 3617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3618] ioctl(4, NBD_SET_SOCK, 5 [pid 3617] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 48.759873][ T3616] block nbd0: shutting down sockets [pid 3617] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3618] <... ioctl resumed>) = 0 [pid 3618] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3617] <... futex resumed>) = 0 [pid 3618] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3617] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3617] <... futex resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3617] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3618] <... openat resumed>) = 7 [pid 3618] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3617] <... futex resumed>) = 0 [pid 3618] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3617] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3617] <... futex resumed>) = 0 [pid 3618] ioctl(7, NBD_SET_SOCK, 5 [pid 3617] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3618] <... ioctl resumed>) = 0 [pid 3618] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3617] <... futex resumed>) = 0 [pid 3618] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3617] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3617] <... futex resumed>) = 0 [pid 3617] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3618] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3618] write(8, "14", 2) = 2 [pid 3618] ioctl(7, NBD_DO_IT [pid 3617] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3617] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [ 48.859439][ T3618] debugfs: out of free dentries, can not create file 'timeout' [pid 3617] exit_group(0) = ? [pid 3618] <... ioctl resumed>) = ? [pid 3618] +++ exited with 0 +++ [pid 3617] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3617, 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 3619 attached , child_tidptr=0x555556f4f5d0) = 3619 [pid 3619] set_robust_list(0x555556f4f5e0, 24) = 0 [pid 3619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3619] setpgid(0, 0) = 0 [pid 3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3619] write(3, "1000", 4) = 4 [pid 3619] close(3) = 0 [pid 3619] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3481db0000 [pid 3619] mprotect(0x7f3481db1000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3619] clone(child_stack=0x7f3481dd03f0, 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 3620 attached , parent_tid=[3620], tls=0x7f3481dd0700, child_tidptr=0x7f3481dd09d0) = 3620 [pid 3620] set_robust_list(0x7f3481dd09e0, 24) = 0 [pid 3620] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3619] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] <... futex resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3620] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3619] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3619] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] <... futex resumed>) = 0 [pid 3620] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0 [pid 3620] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3619] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3619] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] <... futex resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3620] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3619] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3619] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] <... futex resumed>) = 0 [pid 3619] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3620] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3620] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3619] <... futex resumed>) = 0 [pid 3619] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] <... futex resumed>) = 0 [pid 3620] ioctl(4, NBD_SET_SOCK, 5 [ 49.039147][ T3618] block nbd0: shutting down sockets [pid 3619] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3620] <... ioctl resumed>) = 0 [pid 3620] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3619] <... futex resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3619] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3619] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3620] <... openat resumed>) = 7 [pid 3620] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3619] <... futex resumed>) = 0 [pid 3620] ioctl(7, NBD_SET_SOCK, 5 [pid 3619] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3619] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3620] <... ioctl resumed>) = 0 [pid 3620] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3619] <... futex resumed>) = 0 [pid 3620] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3619] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3620] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3619] <... futex resumed>) = 0 [pid 3619] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3620] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3620] write(8, "14", 2) = 2 [pid 3620] ioctl(7, NBD_DO_IT [pid 3619] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 49.148718][ T3620] debugfs: out of free dentries, can not create file 'timeout' [pid 3619] exit_group(0) = ? [pid 3620] <... ioctl resumed>) = ? [pid 3620] +++ exited with 0 +++ [pid 3619] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3619, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f4f5d0) = 3621 ./strace-static-x86_64: Process 3621 attached [pid 3621] set_robust_list(0x555556f4f5e0, 24) = 0 [pid 3621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3621] setpgid(0, 0) = 0 [pid 3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3621] write(3, "1000", 4) = 4 [pid 3621] close(3) = 0 [pid 3621] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3621] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3481db0000 [pid 3621] mprotect(0x7f3481db1000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3621] clone(child_stack=0x7f3481dd03f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3622], tls=0x7f3481dd0700, child_tidptr=0x7f3481dd09d0) = 3622 [pid 3621] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3621] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3622 attached [pid 3622] set_robust_list(0x7f3481dd09e0, 24) = 0 [pid 3622] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3622] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] <... futex resumed>) = 0 [pid 3621] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3621] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3622] <... futex resumed>) = 1 [pid 3622] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0 [pid 3622] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] <... futex resumed>) = 0 [pid 3621] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3621] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3622] <... futex resumed>) = 1 [pid 3622] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3622] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] <... futex resumed>) = 0 [pid 3621] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3621] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3622] <... futex resumed>) = 1 [pid 3622] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3622] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] <... futex resumed>) = 0 [pid 3621] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3621] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3622] <... futex resumed>) = 1 [ 49.319350][ T3620] block nbd0: shutting down sockets [pid 3622] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3622] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3621] <... futex resumed>) = 0 [pid 3621] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3622] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3621] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3622] <... openat resumed>) = 7 [pid 3622] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3621] <... futex resumed>) = 0 [pid 3621] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3622] ioctl(7, NBD_SET_SOCK, 5 [pid 3621] <... futex resumed>) = 0 [pid 3621] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3622] <... ioctl resumed>) = 0 [pid 3622] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3621] <... futex resumed>) = 0 [pid 3622] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3621] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3622] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3621] <... futex resumed>) = 0 [pid 3621] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3622] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3622] write(8, "14", 2) = 2 [pid 3622] ioctl(7, NBD_DO_IT [pid 3621] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3621] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [ 49.416427][ T3622] debugfs: out of free dentries, can not create file 'timeout' [pid 3621] exit_group(0) = ? [pid 3622] <... ioctl resumed>) = ? [pid 3622] +++ exited with 0 +++ [pid 3621] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3621, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f4f5d0) = 3623 ./strace-static-x86_64: Process 3623 attached [pid 3623] set_robust_list(0x555556f4f5e0, 24) = 0 [pid 3623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3623] setpgid(0, 0) = 0 [pid 3623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3623] write(3, "1000", 4) = 4 [pid 3623] close(3) = 0 [pid 3623] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3481db0000 [pid 3623] mprotect(0x7f3481db1000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3623] clone(child_stack=0x7f3481dd03f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3624], tls=0x7f3481dd0700, child_tidptr=0x7f3481dd09d0) = 3624 [pid 3623] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3624 attached [pid 3624] set_robust_list(0x7f3481dd09e0, 24) = 0 [pid 3624] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3624] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... futex resumed>) = 0 [pid 3623] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3624] <... futex resumed>) = 1 [pid 3624] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE) = 0 [pid 3624] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... futex resumed>) = 0 [pid 3623] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3624] <... futex resumed>) = 1 [pid 3624] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3624] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... futex resumed>) = 0 [pid 3623] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3624] <... futex resumed>) = 1 [pid 3624] socketpair(AF_UNIX, SOCK_STREAM, 0, [5, 6]) = 0 [pid 3624] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... futex resumed>) = 0 [pid 3623] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3624] <... futex resumed>) = 1 [ 49.618795][ T3622] block nbd0: shutting down sockets [pid 3624] ioctl(4, NBD_SET_SOCK, 5) = 0 [pid 3624] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... futex resumed>) = 0 [pid 3623] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3624] <... futex resumed>) = 1 [pid 3624] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3624] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... futex resumed>) = 0 [pid 3623] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3624] <... futex resumed>) = 1 [pid 3623] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3624] ioctl(7, NBD_SET_SOCK, 5) = 0 [pid 3624] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3623] <... futex resumed>) = 0 [pid 3624] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3623] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3623] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3624] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3624] write(8, "14", 2) = 2 [pid 3624] ioctl(7, NBD_DO_IT [pid 3623] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3623] exit_group(0) = ? [pid 3624] <... ioctl resumed>) = ? [pid 3624] +++ exited with 0 +++ [pid 3623] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3623, si_uid=0, si_status=0, si_utime=1, 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 3625 attached , child_tidptr=0x555556f4f5d0) = 3625 [pid 3625] set_robust_list(0x555556f4f5e0, 24) = 0 [pid 3625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3625] setpgid(0, 0) = 0 [pid 3625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3625] write(3, "1000", 4) = 4 [pid 3625] close(3) = 0 [pid 3625] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3625] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3481db0000 [pid 3625] mprotect(0x7f3481db1000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3625] clone(child_stack=0x7f3481dd03f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3626], tls=0x7f3481dd0700, child_tidptr=0x7f3481dd09d0) = 3626 ./strace-static-x86_64: Process 3626 attached [pid 3625] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3626] set_robust_list(0x7f3481dd09e0, 24 [pid 3625] <... futex resumed>) = 0 [pid 3626] <... set_robust_list resumed>) = 0 [pid 3625] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3626] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3626] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3625] <... futex resumed>) = 0 [pid 3626] ioctl(3, NBD_SET_FLAGS, NBD_FLAG_HAS_FLAGS|NBD_FLAG_READ_ONLY|NBD_FLAG_SEND_FLUSH|NBD_FLAG_SEND_FUA|NBD_FLAG_ROTATIONAL|NBD_FLAG_SEND_TRIM|NBD_FLAG_SEND_WRITE_ZEROES|NBD_FLAG_SEND_DF|NBD_FLAG_CAN_MULTI_CONN|NBD_FLAG_SEND_RESIZE [pid 3625] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3626] <... ioctl resumed>) = 0 [pid 3625] <... futex resumed>) = 0 [pid 3626] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3625] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3626] <... futex resumed>) = 0 [pid 3625] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3626] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY [pid 3625] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3626] <... openat resumed>) = 4 [pid 3625] <... futex resumed>) = 0 [pid 3626] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3625] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3626] <... futex resumed>) = 0 [pid 3625] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3626] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 3625] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3626] <... socketpair resumed>[5, 6]) = 0 [pid 3625] <... futex resumed>) = 0 [pid 3626] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3625] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3626] <... futex resumed>) = 0 [pid 3625] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3626] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3625] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3626] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3625] <... futex resumed>) = 0 [pid 3626] ioctl(4, NBD_SET_SOCK, 5 [ 49.900651][ T3624] block nbd0: shutting down sockets [pid 3625] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3625] futex(0x7f3481ea84fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3625] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3481d8f000 [pid 3625] mprotect(0x7f3481d90000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3625] clone(child_stack=0x7f3481daf3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3626] <... ioctl resumed>) = 0 [pid 3626] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3625] <... clone resumed>, parent_tid=[3627], tls=0x7f3481daf700, child_tidptr=0x7f3481daf9d0) = 3627 [pid 3626] <... futex resumed>) = 0 [pid 3625] futex(0x7f3481ea84f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3626] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3625] <... futex resumed>) = 0 [pid 3625] futex(0x7f3481ea84fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3627 attached [pid 3627] set_robust_list(0x7f3481daf9e0, 24) = 0 [pid 3627] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3627] futex(0x7f3481ea84fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3625] <... futex resumed>) = 0 [pid 3625] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3626] <... futex resumed>) = 0 [pid 3625] <... futex resumed>) = 1 [pid 3626] ioctl(7, NBD_SET_SOCK, 5 [pid 3625] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3627] <... futex resumed>) = 1 [pid 3627] futex(0x7f3481ea84f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3626] <... ioctl resumed>) = 0 [pid 3626] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3625] <... futex resumed>) = 0 [pid 3626] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3625] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3626] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3625] <... futex resumed>) = 0 [pid 3626] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3625] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3626] <... openat resumed>) = 8 [pid 3626] write(8, "14", 2) = 2 [pid 3626] ioctl(7, NBD_DO_IT [pid 3625] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 50.027357][ T3626] debugfs: out of free dentries, can not create file 'size_bytes' [pid 3625] exit_group(0 [pid 3627] <... futex resumed>) = ? [pid 3626] <... ioctl resumed>) = ? [pid 3625] <... exit_group resumed>) = ? [pid 3627] +++ exited with 0 +++ [pid 3626] +++ exited with 0 +++ [pid 3625] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3625, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f4f5d0) = 3628 ./strace-static-x86_64: Process 3628 attached [pid 3628] set_robust_list(0x555556f4f5e0, 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(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3481db0000 [pid 3628] mprotect(0x7f3481db1000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3628] clone(child_stack=0x7f3481dd03f0, 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=0x7f3481dd0700, child_tidptr=0x7f3481dd09d0) = 3629 [pid 3628] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3629 attached [pid 3629] set_robust_list(0x7f3481dd09e0, 24) = 0 [pid 3629] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3629] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3628] <... futex resumed>) = 0 [pid 3628] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f3481ea84ec, 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(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3628] <... futex resumed>) = 0 [pid 3628] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3629] <... futex resumed>) = 1 [ 50.205339][ T3626] block nbd0: shutting down sockets [pid 3629] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 4 [pid 3629] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3628] <... futex resumed>) = 0 [pid 3628] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f3481ea84ec, 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(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3628] <... futex resumed>) = 0 [pid 3628] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3629] <... futex resumed>) = 1 [pid 3629] ioctl(4, NBD_SET_SOCK, 5 [pid 3628] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3628] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3628] futex(0x7f3481ea84fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3481d8f000 [pid 3628] mprotect(0x7f3481d90000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3628] clone(child_stack=0x7f3481daf3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3630], tls=0x7f3481daf700, child_tidptr=0x7f3481daf9d0) = 3630 [pid 3628] futex(0x7f3481ea84f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f3481ea84fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3630 attached [pid 3630] set_robust_list(0x7f3481daf9e0, 24) = 0 [pid 3630] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 7 [pid 3630] futex(0x7f3481ea84fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3628] <... futex resumed>) = 0 [pid 3628] futex(0x7f3481ea84f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3628] futex(0x7f3481ea84fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3630] <... futex resumed>) = 1 [pid 3630] ioctl(7, NBD_SET_SOCK, 5 [pid 3629] <... ioctl resumed>) = 0 [pid 3629] futex(0x7f3481ea84ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3629] futex(0x7f3481ea84e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3628] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3628] futex(0x7f3481ea84e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3629] <... futex resumed>) = 0 [pid 3628] <... futex resumed>) = 1 [pid 3629] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 8 [pid 3629] write(8, "14", 2) = 2 [pid 3629] ioctl(7, NBD_DO_IT [pid 3628] futex(0x7f3481ea84ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3630] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 3630] futex(0x7f3481ea84fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 50.352849][ T3630] block nbd0: Device being setup by another task [pid 3630] futex(0x7f3481ea84f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3628] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 50.403190][ T3629] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 50.415030][ T3629] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 50.423442][ T3629] CPU: 1 PID: 3629 Comm: syz-executor118 Not tainted 6.0.0-syzkaller #0 [ 50.431774][ T3629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 50.441828][ T3629] RIP: 0010:blk_mq_free_rqs+0x3ef/0x830 [ 50.447384][ T3629] Code: 89 de e8 94 36 6d fd 83 fb 3f 48 89 6c 24 18 0f 87 2e 02 00 00 e8 61 32 6d fd bb 00 10 00 00 44 89 e1 48 d3 e3 48 8b 44 24 28 <42> 8a 04 30 84 c0 0f 85 ed 01 00 00 48 8b 04 24 8b 28 31 ff 89 ee [ 50.466973][ T3629] RSP: 0018:ffffc900039ff9e0 EFLAGS: 00010206 [ 50.473029][ T3629] RAX: 0000000000000000 RBX: 0000000000010000 RCX: 0000000000000004 [ 50.480984][ T3629] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000040 [ 50.488937][ T3629] RBP: ffffea000085d808 R08: ffffffff841c63ec R09: fffffbfff1c4b676 [ 50.496895][ T3629] R10: fffffbfff1c4b676 R11: 1ffffffff1c4b675 R12: 0000000000000004 [ 50.504861][ T3629] R13: 1ffff1100f010f92 R14: dffffc0000000000 R15: 0000000000000080 [ 50.512906][ T3629] FS: 00007f3481dd0700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 50.521819][ T3629] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.528388][ T3629] CR2: 00007f3481daeec8 CR3: 000000001e311000 CR4: 00000000003506e0 [ 50.536349][ T3629] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.544302][ T3629] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.552263][ T3629] Call Trace: [ 50.555531][ T3629] [ 50.558463][ T3629] blk_mq_sched_free_rqs+0x1b0/0x2a0 [ 50.563738][ T3629] ? kernfs_put+0x481/0x490 [ 50.568225][ T3629] ? blk_mq_init_sched+0x8e0/0x8e0 [ 50.573323][ T3629] ? __kobject_del+0x1e0/0x300 [ 50.578160][ T3629] elevator_switch_mq+0x1db/0x6d0 [ 50.583170][ T3629] blk_mq_update_nr_hw_queues+0x5c8/0x12d0 [ 50.588966][ T3629] ? blk_mq_update_nr_requests+0x500/0x500 [ 50.594765][ T3629] ? mutex_lock_io_nested+0x60/0x60 [ 50.599962][ T3629] nbd_start_device+0x15d/0xb70 [ 50.604799][ T3629] ? bpf_lsm_capable+0x5/0x10 [ 50.609459][ T3629] ? security_capable+0xb1/0xd0 [ 50.614300][ T3629] nbd_ioctl+0x3b3/0xa40 [ 50.618554][ T3629] ? nbd_release+0x130/0x130 [ 50.623171][ T3629] ? memset+0x1f/0x40 [ 50.627151][ T3629] ? smack_file_ioctl+0x298/0x3a0 [ 50.632172][ T3629] ? smack_file_alloc_security+0xd0/0xd0 [ 50.637795][ T3629] ? nbd_release+0x130/0x130 [ 50.642390][ T3629] blkdev_ioctl+0x3a6/0x760 [ 50.646884][ T3629] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 50.652333][ T3629] ? bpf_lsm_file_ioctl+0x5/0x10 [ 50.657257][ T3629] ? security_file_ioctl+0x9d/0xb0 [ 50.662352][ T3629] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 50.667796][ T3629] __se_sys_ioctl+0xfb/0x170 [ 50.672374][ T3629] do_syscall_64+0x2b/0x70 [ 50.676778][ T3629] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 50.682678][ T3629] RIP: 0033:0x7f3481e23369 [ 50.687089][ T3629] 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 [ 50.706764][ T3629] RSP: 002b:00007f3481dd02e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.715167][ T3629] RAX: ffffffffffffffda RBX: 00007f3481ea84e0 RCX: 00007f3481e23369 [ 50.723218][ T3629] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007 [ 50.731172][ T3629] RBP: 00007f3481e75194 R08: 0000000000000002 R09: 0000000000003431 [ 50.739133][ T3629] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3481ea84ec [ 50.747088][ T3629] R13: 00007f3481dd02f0 R14: 00007f3481ea84e8 R15: 0000000000000002 [ 50.755052][ T3629] [ 50.758063][ T3629] Modules linked in: [ 50.762091][ T3629] ---[ end trace 0000000000000000 ]--- [ 50.767701][ T3629] RIP: 0010:blk_mq_free_rqs+0x3ef/0x830 [ 50.773378][ T3629] Code: 89 de e8 94 36 6d fd 83 fb 3f 48 89 6c 24 18 0f 87 2e 02 00 00 e8 61 32 6d fd bb 00 10 00 00 44 89 e1 48 d3 e3 48 8b 44 24 28 <42> 8a 04 30 84 c0 0f 85 ed 01 00 00 48 8b 04 24 8b 28 31 ff 89 ee [ 50.793094][ T3629] RSP: 0018:ffffc900039ff9e0 EFLAGS: 00010206 [ 50.799287][ T3629] RAX: 0000000000000000 RBX: 0000000000010000 RCX: 0000000000000004 [ 50.807329][ T3629] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000040 [ 50.815327][ T3629] RBP: ffffea000085d808 R08: ffffffff841c63ec R09: fffffbfff1c4b676 [ 50.823329][ T3629] R10: fffffbfff1c4b676 R11: 1ffffffff1c4b675 R12: 0000000000000004 [ 50.831298][ T3629] R13: 1ffff1100f010f92 R14: dffffc0000000000 R15: 0000000000000080 [ 50.839306][ T3629] FS: 00007f3481dd0700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 50.848284][ T3629] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.854911][ T3629] CR2: 00007f3481e64510 CR3: 000000001e311000 CR4: 00000000003506f0 [ 50.862906][ T3629] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.870884][ T3629] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.878898][ T3629] Kernel panic - not syncing: Fatal exception [ 50.885017][ T3629] Kernel Offset: disabled [ 50.889335][ T3629] Rebooting in 86400 seconds..