./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3715171362
<...>
DUID 00:04:ab:86:5b:51:31:5e:ac:a3:74:55:84:ab:cd:90:ff:3d
forked to background, child pid 4653
[ 35.667417][ T4654] 8021q: adding VLAN 0 to HW filter on device bond0
[ 35.689891][ T4654] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.0.27' (ECDSA) to the list of known hosts.
execve("./syz-executor3715171362", ["./syz-executor3715171362"], 0x7fff32f6b160 /* 10 vars */) = 0
brk(NULL) = 0x55555743f000
brk(0x55555743fc40) = 0x55555743fc40
arch_prctl(ARCH_SET_FS, 0x55555743f300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
set_tid_address(0x55555743f5d0) = 5077
set_robust_list(0x55555743f5e0, 24) = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7fd6b86f1490, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fd6b86f1b60}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7fd6b86f1530, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd6b86f1b60}, 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-executor3715171362", 4096) = 28
brk(0x555557460c40) = 0x555557460c40
brk(0x555557461000) = 0x555557461000
mprotect(0x7fd6b87b2000, 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
getpid() = 5077
openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3
write(3, "10000000000", 11) = 11
close(3) = 0
openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3
write(3, "20", 2) = 2
close(3) = 0
openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3
write(3, "0", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3
write(3, "0", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
write(3, "100", 3) = 3
close(3) = 0
openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3
write(3, "0", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3
write(3, "0", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3
write(3, "7 4 1 3", 7) = 7
close(3) = 0
openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3
write(3, "0", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3
write(3, "5077", 4) = 4
close(3) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555743f5d0) = 5078
./strace-static-x86_64: Process 5078 attached
[pid 5078] set_robust_list(0x55555743f5e0, 24) = 0
[pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5078] setpgid(0, 0) = 0
[pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5078] write(3, "1000", 4) = 4
[pid 5078] close(3) = 0
[pid 5078] futex(0x7fd6b87b86cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd6b86c0000
[pid 5078] mprotect(0x7fd6b86c1000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5078] clone(child_stack=0x7fd6b86e03f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5080], tls=0x7fd6b86e0700, child_tidptr=0x7fd6b86e09d0) = 5080
[pid 5078] futex(0x7fd6b87b86c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5078] futex(0x7fd6b87b86cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5080 attached
<unfinished ...>
[pid 5080] set_robust_list(0x7fd6b86e09e0, 24) = 0
[pid 5080] memfd_create("syzkaller", 0) = 3
[pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd6b02c0000
[pid 5080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid 5080] munmap(0x7fd6b02c0000, 1048576) = 0
[pid 5080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5080] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5080] close(3) = 0
[pid 5080] mkdir("./file0", 0777) = 0
syzkaller login: [ 57.326731][ T5080] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5080 'syz-executor371'
[ 57.356022][ T5080] loop0: detected capacity change from 0 to 2048
[pid 5080] mount("/dev/loop0", "./file0", "nilfs2", MS_NOEXEC|MS_NODIRATIME, "") = 0
[pid 5080] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5080] chdir("./file0") = 0
[pid 5080] ioctl(4, LOOP_CLR_FD) = 0
[pid 5080] close(4) = 0
[pid 5080] futex(0x7fd6b87b86cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5078] <... futex resumed>) = 0
[pid 5078] futex(0x7fd6b87b86c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5078] futex(0x7fd6b87b86cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5080] <... futex resumed>) = 1
[pid 5080] openat(AT_FDCWD, ".pending_reads", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5080] futex(0x7fd6b87b86cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5078] <... futex resumed>) = 0
[pid 5078] futex(0x7fd6b87b86c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5078] futex(0x7fd6b87b86cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5080] <... futex resumed>) = 1
[pid 5080] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 5
[pid 5080] futex(0x7fd6b87b86cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5078] <... futex resumed>) = 0
[pid 5078] futex(0x7fd6b87b86c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5078] futex(0x7fd6b87b86cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5080] <... futex resumed>) = 1
[pid 5080] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid 5080] futex(0x7fd6b87b86cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5078] <... futex resumed>) = 0
[pid 5078] futex(0x7fd6b87b86c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5078] futex(0x7fd6b87b86cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5080] <... futex resumed>) = 1
[ 57.378784][ T5081] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5080] write(6, "\x62\x6c\x6b\x69\x6f\x2e\x62\x66\x71\x2e\x69\x6f\x5f\x73\x65\x72\x76\x69\x63\x65\x5f\x62\x79\x74\x65\x73\x5f\x72\x65\x63\x75\x72\x73\x69\x76\x65\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 34136651 <unfinished ...>
[pid 5078] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[pid 5078] futex(0x7fd6b87b86dc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd6b039f000
[pid 5078] mprotect(0x7fd6b03a0000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5078] clone(child_stack=0x7fd6b03bf3f0, 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 5082 attached
, parent_tid=[5082], tls=0x7fd6b03bf700, child_tidptr=0x7fd6b03bf9d0) = 5082
[pid 5078] futex(0x7fd6b87b86d8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5078] futex(0x7fd6b87b86dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5082] set_robust_list(0x7fd6b03bf9e0, 24) = 0
[pid 5082] ioctl(4, NILFS_IOCTL_RESIZE <unfinished ...>
[pid 5080] <... write resumed>) = 585728
[pid 5080] futex(0x7fd6b87b86cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5080] futex(0x7fd6b87b86c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5078] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[ 57.531302][ T5081] NILFS (loop0): nilfs_sufile_update: invalid segment number: 46
[ 57.539513][ T5081] ------------[ cut here ]------------
[ 57.544980][ T5081] WARNING: CPU: 1 PID: 5081 at fs/nilfs2/segment.c:1484 nilfs_segctor_do_construct+0x4473/0x7100
[ 57.555914][ T5081] Modules linked in:
[ 57.560018][ T5081] CPU: 1 PID: 5081 Comm: segctord Not tainted 6.2.0-rc5-next-20230127-syzkaller-08766-ge2f86c02fdc9 #0
[ 57.571196][ T5081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
[ 57.581689][ T5081] RIP: 0010:nilfs_segctor_do_construct+0x4473/0x7100
[ 57.588892][ T5081] Code: dd 0f 84 90 15 00 00 e8 5b 8f 50 fe 49 83 ed 48 41 bc 18 00 00 00 31 db 4c 89 ac 24 60 01 00 00 e9 17 f9 ff ff e8 3d 8f 50 fe <0f> 0b e9 f5 cc ff ff e8 31 8f 50 fe 48 8b ac 24 40 01 00 00 48 85
[ 57.609565][ T5081] RSP: 0018:ffffc90003d2fb38 EFLAGS: 00010293
[ 57.616072][ T5081] RAX: 0000000000000000 RBX: ffff88807df7f000 RCX: 0000000000000000
[ 57.624505][ T5081] RDX: ffff88807aefd7c0 RSI: ffffffff833425e3 RDI: 0000000000000005
[ 57.632734][ T5081] RBP: 00000000ffffffea R08: 0000000000000005 R09: 0000000000000000
[ 57.640910][ T5081] R10: 00000000ffffffea R11: 0000000000000000 R12: ffff888076dea160
[ 57.649198][ T5081] R13: ffffed100fbefe1b R14: dffffc0000000000 R15: ffff88807359f600
[ 57.657194][ T5081] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
[ 57.666385][ T5081] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 57.673083][ T5081] CR2: 000056221fd5b0a8 CR3: 000000002bca8000 CR4: 00000000003506e0
[pid 5078] exit_group(0 <unfinished ...>
[pid 5082] <... ioctl resumed> <unfinished ...>) = ?
[pid 5080] <... futex resumed>) = ?
[pid 5078] <... exit_group resumed>) = ?
[pid 5082] +++ exited with 0 +++
[pid 5080] +++ exited with 0 +++
[pid 5078] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555743f5d0) = 5083
./strace-static-x86_64: Process 5083 attached
[pid 5083] set_robust_list(0x55555743f5e0, 24) = 0
[pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5083] setpgid(0, 0) = 0
[pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5083] write(3, "1000", 4) = 4
[pid 5083] close(3) = 0
[pid 5083] futex(0x7fd6b87b86cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd6b86c0000
[pid 5083] mprotect(0x7fd6b86c1000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5083] clone(child_stack=0x7fd6b86e03f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5084], tls=0x7fd6b86e0700, child_tidptr=0x7fd6b86e09d0) = 5084
[pid 5083] futex(0x7fd6b87b86c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5083] futex(0x7fd6b87b86cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5084 attached
<unfinished ...>
[ 57.681507][ T5081] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 57.689776][ T5081] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 57.698052][ T5081] Call Trace:
[ 57.701733][ T5081] <TASK>
[ 57.705055][ T5081] ? nilfs_segctor_abort_construction+0xe20/0xe20
[ 57.711959][ T5081] ? do_raw_spin_lock+0x124/0x2b0
[ 57.717042][ T5081] ? spin_bug+0x1c0/0x1c0
[ 57.721752][ T5081] ? do_raw_spin_unlock+0x175/0x230
[pid 5084] set_robust_list(0x7fd6b86e09e0, 24) = 0
[pid 5084] memfd_create("syzkaller", 0) = 3
[pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd6b02c0000
[pid 5084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid 5084] munmap(0x7fd6b02c0000, 1048576) = 0
[pid 5084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5084] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5084] ioctl(4, LOOP_CLR_FD) = 0
[pid 5084] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 5084] close(4) = 0
[pid 5084] close(3) = 0
[pid 5084] futex(0x7fd6b87b86cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5083] <... futex resumed>) = 0
[pid 5083] futex(0x7fd6b87b86c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5083] futex(0x7fd6b87b86cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5084] <... futex resumed>) = 1
[pid 5084] openat(AT_FDCWD, ".pending_reads", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3
[pid 5084] futex(0x7fd6b87b86cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5083] <... futex resumed>) = 0
[pid 5083] futex(0x7fd6b87b86c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5083] futex(0x7fd6b87b86cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5084] <... futex resumed>) = 1
[pid 5084] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4
[pid 5084] futex(0x7fd6b87b86cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5083] <... futex resumed>) = 0
[pid 5083] futex(0x7fd6b87b86c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5083] futex(0x7fd6b87b86cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5084] <... futex resumed>) = 1
[pid 5084] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5084] futex(0x7fd6b87b86cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5083] <... futex resumed>) = 0
[pid 5083] futex(0x7fd6b87b86c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5083] futex(0x7fd6b87b86cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5084] <... futex resumed>) = 1
[ 57.738236][ T5081] ? _raw_spin_unlock+0x28/0x40
[ 57.743338][ T5081] nilfs_segctor_construct+0x8e3/0xb30
[ 57.766622][ T5081] ? rcu_read_lock_sched_held+0x3e/0x70
[ 57.772538][ T5081] ? trace_nilfs2_transaction_transition+0x227/0x300
[pid 5084] write(5, "\x62\x6c\x6b\x69\x6f\x2e\x62\x66\x71\x2e\x69\x6f\x5f\x73\x65\x72\x76\x69\x63\x65\x5f\x62\x79\x74\x65\x73\x5f\x72\x65\x63\x75\x72\x73\x69\x76\x65\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 34136651 <unfinished ...>
[pid 5083] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[pid 5083] futex(0x7fd6b87b86dc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd6b039f000
[ 57.804516][ T5081] nilfs_segctor_thread+0x3c7/0xf30
[ 57.809927][ T5081] ? nilfs_segctor_construct+0xb30/0xb30
[ 57.815620][ T5081] ? prepare_to_wait_exclusive+0x2c0/0x2c0
[ 57.821556][ T5081] ? __kthread_parkme+0x163/0x220
[ 57.826621][ T5081] ? nilfs_segctor_construct+0xb30/0xb30
[ 57.832385][ T5081] kthread+0x2e8/0x3a0
[ 57.836496][ T5081] ? kthread_complete_and_exit+0x40/0x40
[ 57.842378][ T5081] ret_from_fork+0x1f/0x30
[ 57.847299][ T5081] </TASK>
[ 57.852397][ T5081] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 57.859707][ T5081] CPU: 1 PID: 5081 Comm: segctord Not tainted 6.2.0-rc5-next-20230127-syzkaller-08766-ge2f86c02fdc9 #0
[ 57.870757][ T5081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
[ 57.880834][ T5081] Call Trace:
[ 57.884134][ T5081] <TASK>
[ 57.887086][ T5081] dump_stack_lvl+0xd9/0x150
[ 57.891711][ T5081] panic+0x61b/0x6c0
[ 57.895646][ T5081] ? panic_smp_self_stop+0x90/0x90
[ 57.900798][ T5081] ? show_trace_log_lvl+0x285/0x390
[ 57.906058][ T5081] ? nilfs_segctor_do_construct+0x4473/0x7100
[ 57.912165][ T5081] check_panic_on_warn+0xb1/0xc0
[ 57.917155][ T5081] __warn+0xf2/0x4f0
[ 57.921092][ T5081] ? nilfs_segctor_do_construct+0x4473/0x7100
[ 57.927197][ T5081] report_bug+0x206/0x2b0
[ 57.931565][ T5081] handle_bug+0x3c/0x70
[ 57.935766][ T5081] exc_invalid_op+0x18/0x50
[ 57.940346][ T5081] asm_exc_invalid_op+0x1a/0x20
[ 57.945229][ T5081] RIP: 0010:nilfs_segctor_do_construct+0x4473/0x7100
[pid 5083] mprotect(0x7fd6b03a0000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5083] clone(child_stack=0x7fd6b03bf3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5085], tls=0x7fd6b03bf700, child_tidptr=0x7fd6b03bf9d0) = 5085
[pid 5083] futex(0x7fd6b87b86d8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5083] futex(0x7fd6b87b86dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid 5083] futex(0x7fd6b87b86dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[ 57.951941][ T5081] Code: dd 0f 84 90 15 00 00 e8 5b 8f 50 fe 49 83 ed 48 41 bc 18 00 00 00 31 db 4c 89 ac 24 60 01 00 00 e9 17 f9 ff ff e8 3d 8f 50 fe <0f> 0b e9 f5 cc ff ff e8 31 8f 50 fe 48 8b ac 24 40 01 00 00 48 85
[ 57.971581][ T5081] RSP: 0018:ffffc90003d2fb38 EFLAGS: 00010293
[ 57.977680][ T5081] RAX: 0000000000000000 RBX: ffff88807df7f000 RCX: 0000000000000000
[ 57.985680][ T5081] RDX: ffff88807aefd7c0 RSI: ffffffff833425e3 RDI: 0000000000000005
[ 57.993676][ T5081] RBP: 00000000ffffffea R08: 0000000000000005 R09: 0000000000000000
[ 58.001670][ T5081] R10: 00000000ffffffea R11: 0000000000000000 R12: ffff888076dea160
[ 58.009666][ T5081] R13: ffffed100fbefe1b R14: dffffc0000000000 R15: ffff88807359f600
[ 58.017674][ T5081] ? nilfs_segctor_do_construct+0x4473/0x7100
[ 58.023783][ T5081] ? nilfs_segctor_do_construct+0x4473/0x7100
[ 58.029918][ T5081] ? nilfs_segctor_abort_construction+0xe20/0xe20
[ 58.036370][ T5081] ? do_raw_spin_lock+0x124/0x2b0
[ 58.041433][ T5081] ? spin_bug+0x1c0/0x1c0
[ 58.045802][ T5081] ? do_raw_spin_unlock+0x175/0x230
[ 58.051040][ T5081] ? _raw_spin_unlock+0x28/0x40
[ 58.055932][ T5081] nilfs_segctor_construct+0x8e3/0xb30
[ 58.061425][ T5081] ? rcu_read_lock_sched_held+0x3e/0x70
[ 58.067006][ T5081] ? trace_nilfs2_transaction_transition+0x227/0x300
[ 58.073723][ T5081] nilfs_segctor_thread+0x3c7/0xf30
[ 58.078967][ T5081] ? nilfs_segctor_construct+0xb30/0xb30
[ 58.084647][ T5081] ? prepare_to_wait_exclusive+0x2c0/0x2c0
[ 58.090499][ T5081] ? __kthread_parkme+0x163/0x220
[ 58.095559][ T5081] ? nilfs_segctor_construct+0xb30/0xb30
[ 58.101230][ T5081] kthread+0x2e8/0x3a0
[pid 5083] exit_group(0) = ?
[pid 5084] <... write resumed>) = ?
[pid 5084] +++ exited with 0 +++
[ 58.105332][ T5081] ? kthread_complete_and_exit+0x40/0x40
[ 58.111006][ T5081] ret_from_fork+0x1f/0x30
[ 58.115490][ T5081] </TASK>
[ 58.118678][ T5081] Kernel Offset: disabled
[ 58.123079][ T5081] Rebooting in 86400 seconds..