./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor388462535 <...> forked to background, child pid 3186 no interfaces have a carrier [ 24.129574][ T3187] 8021q: adding VLAN 0 to HW filter on device bond0 [ 24.139421][ T3187] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.125' (ECDSA) to the list of known hosts. execve("./syz-executor388462535", ["./syz-executor388462535"], 0x7fff6b187a80 /* 10 vars */) = 0 brk(NULL) = 0x555557197000 brk(0x555557197c40) = 0x555557197c40 arch_prctl(ARCH_SET_FS, 0x555557197300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor388462535", 4096) = 27 brk(0x5555571b8c40) = 0x5555571b8c40 brk(0x5555571b9000) = 0x5555571b9000 mprotect(0x7fad9f797000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3608 attached , child_tidptr=0x5555571975d0) = 3608 [pid 3608] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3608] setsid() = 1 [pid 3608] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3608] unshare(CLONE_NEWNS) = 0 [pid 3608] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3608] unshare(CLONE_NEWIPC) = 0 [pid 3608] unshare(CLONE_NEWCGROUP) = 0 [pid 3608] unshare(CLONE_NEWUTS) = 0 [pid 3608] unshare(CLONE_SYSVSEM) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "16777216", 8) = 8 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "536870912", 9) = 9 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1024", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "8192", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1024", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1024", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3608] close(3) = 0 [pid 3608] getpid() = 1 [pid 3608] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b bb fe ff ff ff eb d2 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c [ 41.564813][ T3609] RSP: 0018:ffffc9000390f310 EFLAGS: 00010293 [ 41.571075][ T3609] RAX: ffffffff834749d7 RBX: 00000000fffffffe RCX: ffff888027003b00 [ 41.579065][ T3609] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 00000000fffffffe [ 41.587618][ T3609] RBP: 1ffff92000721e7c R08: ffffffff83474950 R09: ffffffff834596a3 [ 41.595768][ T3609] R10: 0000000000000002 R11: ffff888027003b00 R12: ffffc9000390f3e0 [ 41.603830][ T3609] R13: ffff88804cf90158 R14: ffffc9000390f3f8 R15: dffffc0000000000 [ 41.611921][ T3609] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 41.620909][ T3609] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.627493][ T3609] CR2: 000055db1609ac08 CR3: 000000000c88e000 CR4: 00000000003506e0 [ 41.635502][ T3609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.643587][ T3609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.651596][ T3609] Call Trace: [ 41.654878][ T3609] [ 41.657802][ T3609] nilfs_dat_prepare_update+0x1f/0xd0 [ 41.663212][ T3609] nilfs_direct_propagate+0x1c2/0x390 [ 41.668624][ T3609] ? nilfs_direct_delete+0x300/0x300 [ 41.674289][ T3609] ? down_write+0x10d/0x170 [ 41.678875][ T3609] ? down_read_killable+0x80/0x80 [ 41.683964][ T3609] nilfs_bmap_propagate+0x6d/0x120 [ 41.689285][ T3609] nilfs_segctor_apply_buffers+0x192/0x380 [ 41.695913][ T3609] ? nilfs_collect_file_data+0xc0/0xc0 [ 41.701491][ T3609] nilfs_segctor_scan_file+0x8b5/0xaf0 [ 41.706963][ T3609] ? trace_nilfs2_collection_stage_transition+0x220/0x220 [ 41.714160][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 41.719850][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 41.725868][ T3609] ? nilfs_segbuf_reset+0x142/0x320 [ 41.731173][ T3609] nilfs_segctor_do_construct+0x1cce/0x6fe0 [ 41.737118][ T3609] ? nilfs_transaction_unlock+0x210/0x210 [ 41.742897][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 41.748536][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 41.754558][ T3609] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 41.760049][ T3609] ? __up_read+0x690/0x690 [ 41.764456][ T3609] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 41.769946][ T3609] ? do_raw_spin_lock+0x148/0x360 [ 41.774977][ T3609] ? __lock_acquire+0x1f60/0x1f60 [ 41.780038][ T3609] ? do_raw_spin_unlock+0x134/0x8a0 [ 41.785251][ T3609] ? _raw_spin_unlock+0x24/0x40 [ 41.790151][ T3609] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 41.795631][ T3609] nilfs_segctor_construct+0x143/0x8d0 [ 41.801160][ T3609] ? trace_nilfs2_transaction_transition+0xc9/0x240 [ 41.807764][ T3609] nilfs_segctor_thread+0x534/0x1180 [ 41.813128][ T3609] ? __kthread_parkme+0xbd/0x1c0 [ 41.818110][ T3609] ? nilfs_construction_timeout+0x40/0x40 [ 41.823877][ T3609] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 41.829809][ T3609] ? _raw_spin_unlock+0x40/0x40 [ 41.834650][ T3609] ? wake_bit_function+0x240/0x240 [ 41.839784][ T3609] ? _raw_spin_unlock+0x40/0x40 [ 41.844637][ T3609] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 41.850662][ T3609] ? __kthread_parkme+0x166/0x1c0 [ 41.855697][ T3609] kthread+0x266/0x300 [ 41.859826][ T3609] ? nilfs_construction_timeout+0x40/0x40 [ 41.865554][ T3609] ? kthread_blkcg+0xd0/0xd0 [ 41.870224][ T3609] ret_from_fork+0x1f/0x30 [ 41.874682][ T3609] [ 41.877726][ T3609] Kernel panic - not syncing: panic_on_warn set ... [ 41.884317][ T3609] CPU: 1 PID: 3609 Comm: segctord Not tainted 6.0.0-rc7-syzkaller-00250-ga962b54e162c #0 [ 41.894106][ T3609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 41.904146][ T3609] Call Trace: [ 41.907414][ T3609] [ 41.910334][ T3609] dump_stack_lvl+0x1b1/0x28e [ 41.915099][ T3609] ? fortify_panic+0x13/0x13 [ 41.919681][ T3609] ? panic+0x715/0x715 [ 41.923746][ T3609] ? vscnprintf+0x59/0x80 [ 41.928094][ T3609] ? nilfs_dat_prepare_end+0x170/0x2a0 [ 41.933544][ T3609] panic+0x2d6/0x715 [ 41.937430][ T3609] ? __warn+0x131/0x220 [ 41.941611][ T3609] ? fb_is_primary_device+0xcc/0xcc [ 41.946844][ T3609] ? ret_from_fork+0x1f/0x30 [ 41.951444][ T3609] ? nilfs_dat_prepare_end+0x247/0x2a0 [ 41.956896][ T3609] __warn+0x1fa/0x220 [ 41.960873][ T3609] ? nilfs_dat_prepare_end+0x247/0x2a0 [ 41.966319][ T3609] report_bug+0x1b3/0x2d0 [ 41.970644][ T3609] handle_bug+0x3d/0x70 [ 41.974796][ T3609] exc_invalid_op+0x16/0x40 [ 41.979290][ T3609] asm_exc_invalid_op+0x16/0x20 [ 41.984133][ T3609] RIP: 0010:nilfs_dat_prepare_end+0x247/0x2a0 [ 41.990192][ T3609] Code: 3f 40 fe 89 eb 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b8 3f 40 fe e8 b3 3c b9 fd e9 5a ff ff ff e8 a9 3f 40 fe <0f> 0b bb fe ff ff ff eb d2 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c [ 42.009788][ T3609] RSP: 0018:ffffc9000390f310 EFLAGS: 00010293 [ 42.015845][ T3609] RAX: ffffffff834749d7 RBX: 00000000fffffffe RCX: ffff888027003b00 [ 42.023809][ T3609] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 00000000fffffffe [ 42.031768][ T3609] RBP: 1ffff92000721e7c R08: ffffffff83474950 R09: ffffffff834596a3 [ 42.039732][ T3609] R10: 0000000000000002 R11: ffff888027003b00 R12: ffffc9000390f3e0 [ 42.047696][ T3609] R13: ffff88804cf90158 R14: ffffc9000390f3f8 R15: dffffc0000000000 [ 42.055664][ T3609] ? nilfs_mdt_read_block+0xb3/0x460 [ 42.060940][ T3609] ? nilfs_dat_prepare_end+0x1c0/0x2a0 [ 42.066401][ T3609] ? nilfs_dat_prepare_end+0x247/0x2a0 [ 42.071860][ T3609] nilfs_dat_prepare_update+0x1f/0xd0 [ 42.077224][ T3609] nilfs_direct_propagate+0x1c2/0x390 [ 42.082589][ T3609] ? nilfs_direct_delete+0x300/0x300 [ 42.087890][ T3609] ? down_write+0x10d/0x170 [ 42.092400][ T3609] ? down_read_killable+0x80/0x80 [ 42.097444][ T3609] nilfs_bmap_propagate+0x6d/0x120 [ 42.102555][ T3609] nilfs_segctor_apply_buffers+0x192/0x380 [ 42.108354][ T3609] ? nilfs_collect_file_data+0xc0/0xc0 [ 42.113804][ T3609] nilfs_segctor_scan_file+0x8b5/0xaf0 [ 42.119259][ T3609] ? trace_nilfs2_collection_stage_transition+0x220/0x220 [ 42.126373][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 42.131996][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 42.137981][ T3609] ? nilfs_segbuf_reset+0x142/0x320 [ 42.143176][ T3609] nilfs_segctor_do_construct+0x1cce/0x6fe0 [ 42.149119][ T3609] ? nilfs_transaction_unlock+0x210/0x210 [ 42.154830][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 42.160455][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 42.166435][ T3609] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 42.171895][ T3609] ? __up_read+0x690/0x690 [ 42.176308][ T3609] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 42.181760][ T3609] ? do_raw_spin_lock+0x148/0x360 [ 42.186775][ T3609] ? __lock_acquire+0x1f60/0x1f60 [ 42.191798][ T3609] ? do_raw_spin_unlock+0x134/0x8a0 [ 42.197012][ T3609] ? _raw_spin_unlock+0x24/0x40 [ 42.201880][ T3609] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 42.207519][ T3609] nilfs_segctor_construct+0x143/0x8d0 [ 42.212983][ T3609] ? trace_nilfs2_transaction_transition+0xc9/0x240 [ 42.219587][ T3609] nilfs_segctor_thread+0x534/0x1180 [ 42.224908][ T3609] ? __kthread_parkme+0xbd/0x1c0 [ 42.229884][ T3609] ? nilfs_construction_timeout+0x40/0x40 [ 42.235610][ T3609] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 42.241497][ T3609] ? _raw_spin_unlock+0x40/0x40 [ 42.246453][ T3609] ? wake_bit_function+0x240/0x240 [ 42.251575][ T3609] ? _raw_spin_unlock+0x40/0x40 [ 42.256431][ T3609] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 42.262415][ T3609] ? __kthread_parkme+0x166/0x1c0 [ 42.267435][ T3609] kthread+0x266/0x300 [ 42.271494][ T3609] ? nilfs_construction_timeout+0x40/0x40 [ 42.277204][ T3609] ? kthread_blkcg+0xd0/0xd0 [ 42.281809][ T3609] ret_from_fork+0x1f/0x30 [ 42.286236][ T3609] [ 42.289539][ T3609] Kernel Offset: disabled [ 42.293937][ T3609] Rebooting in 86400 seconds..