./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1587037336 <...> DUID 00:04:b0:cd:33:f9:4f:8a:55:45:4d:7b:3b:ee:3a:71:f0:8b forked to background, child pid 3185 [ 24.825034][ T3186] 8021q: adding VLAN 0 to HW filter on device bond0 [ 24.836409][ T3186] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.60' (ECDSA) to the list of known hosts. execve("./syz-executor1587037336", ["./syz-executor1587037336"], 0x7ffda03739c0 /* 10 vars */) = 0 brk(NULL) = 0x5555568b9000 brk(0x5555568b9c40) = 0x5555568b9c40 arch_prctl(ARCH_SET_FS, 0x5555568b9300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1587037336", 4096) = 28 brk(0x5555568dac40) = 0x5555568dac40 brk(0x5555568db000) = 0x5555568db000 mprotect(0x7fec40ab1000, 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=0x5555568b95d0) = 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 e9 75 fc ff ff e8 f9 48 40 fe e8 f4 45 b9 fd 43 80 7c 25 00 [ 42.779208][ T3609] RSP: 0018:ffffc9000389f2a8 EFLAGS: 00010293 [ 42.785332][ T3609] RAX: ffffffff8347407b RBX: ffff888079c311a0 RCX: ffff8880775a9d80 [ 42.793379][ T3609] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 000023d50af30002 [ 42.801405][ T3609] RBP: 0000000000000003 R08: ffffffff83473ce9 R09: ffffed100f211f9b [ 42.809387][ T3609] R10: ffffed100f211f9b R11: 1ffff1100f211f9a R12: ffff8880723fda40 [ 42.817405][ T3609] R13: ffffc9000389f3b8 R14: ffff888074fb8180 R15: 000023d50af30002 [ 42.825409][ T3609] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 42.834380][ T3609] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.840996][ T3609] CR2: 00007fec40ab81d0 CR3: 000000000c88e000 CR4: 00000000003506f0 [ 42.848968][ T3609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.856978][ T3609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.864988][ T3609] Call Trace: [ 42.868260][ T3609] [ 42.871233][ T3609] nilfs_dat_commit_update+0x25/0x40 [ 42.876537][ T3609] nilfs_direct_propagate+0x215/0x390 [ 42.882055][ T3609] ? nilfs_direct_delete+0x300/0x300 [ 42.887352][ T3609] ? nilfs_lookup_dirty_data_buffers+0x734/0x860 [ 42.893741][ T3609] ? down_write+0x10d/0x170 [ 42.898274][ T3609] ? nilfs_segctor_scan_file+0xaf0/0xaf0 [ 42.903955][ T3609] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 42.909948][ T3609] nilfs_bmap_propagate+0x6d/0x120 [ 42.915143][ T3609] nilfs_collect_file_data+0x49/0xc0 [ 42.920505][ T3609] nilfs_segctor_apply_buffers+0x192/0x380 [ 42.926334][ T3609] ? _compound_head+0x130/0x130 [ 42.931257][ T3609] nilfs_segctor_scan_file+0x842/0xaf0 [ 42.936741][ T3609] ? write_boundary_block+0x150/0x150 [ 42.942266][ T3609] ? do_raw_spin_unlock+0x134/0x8a0 [ 42.947472][ T3609] ? trace_nilfs2_collection_stage_transition+0x220/0x220 [ 42.954648][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 42.960296][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 42.966331][ T3609] ? nilfs_segbuf_reset+0x142/0x320 [ 42.971575][ T3609] nilfs_segctor_do_construct+0x1cce/0x6fe0 [ 42.977506][ T3609] ? nilfs_transaction_unlock+0x210/0x210 [ 42.983262][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 42.988923][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 42.994964][ T3609] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 43.000497][ T3609] ? __up_read+0x690/0x690 [ 43.004921][ T3609] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 43.010371][ T3609] ? do_raw_spin_lock+0x148/0x360 [ 43.015436][ T3609] ? __lock_acquire+0x1f60/0x1f60 [ 43.020513][ T3609] ? do_raw_spin_unlock+0x134/0x8a0 [ 43.025708][ T3609] ? _raw_spin_unlock+0x24/0x40 [ 43.030605][ T3609] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 43.036079][ T3609] nilfs_segctor_construct+0x143/0x8d0 [ 43.041592][ T3609] ? trace_nilfs2_transaction_transition+0xc9/0x240 [ 43.048194][ T3609] nilfs_segctor_thread+0x534/0x1180 [ 43.053547][ T3609] ? __kthread_parkme+0xbd/0x1c0 [ 43.058535][ T3609] ? nilfs_construction_timeout+0x40/0x40 [ 43.064339][ T3609] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 43.070239][ T3609] ? _raw_spin_unlock+0x40/0x40 [ 43.075138][ T3609] ? wake_bit_function+0x240/0x240 [ 43.080268][ T3609] ? _raw_spin_unlock+0x40/0x40 [ 43.085170][ T3609] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 43.091193][ T3609] ? __kthread_parkme+0x166/0x1c0 [ 43.096220][ T3609] kthread+0x266/0x300 [ 43.100279][ T3609] ? nilfs_construction_timeout+0x40/0x40 [ 43.106040][ T3609] ? kthread_blkcg+0xd0/0xd0 [ 43.110666][ T3609] ret_from_fork+0x1f/0x30 [ 43.115089][ T3609] [ 43.118096][ T3609] Kernel panic - not syncing: panic_on_warn set ... [ 43.124665][ T3609] CPU: 0 PID: 3609 Comm: segctord Not tainted 6.0.0-rc7-syzkaller-00081-gc3e0e1e23c70 #0 [ 43.134449][ T3609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 43.144491][ T3609] Call Trace: [ 43.147762][ T3609] [ 43.150686][ T3609] dump_stack_lvl+0x1b1/0x28e [ 43.155358][ T3609] ? fortify_panic+0x13/0x13 [ 43.159938][ T3609] ? panic+0x715/0x715 [ 43.164001][ T3609] ? vscnprintf+0x59/0x80 [ 43.168320][ T3609] ? nilfs_dat_commit_end+0x4f0/0x610 [ 43.173682][ T3609] panic+0x2d6/0x715 [ 43.177581][ T3609] ? __warn+0x131/0x220 [ 43.181733][ T3609] ? fb_is_primary_device+0xcc/0xcc [ 43.186935][ T3609] ? ret_from_fork+0x1f/0x30 [ 43.191523][ T3609] ? nilfs_dat_commit_end+0x56b/0x610 [ 43.196892][ T3609] __warn+0x1fa/0x220 [ 43.200871][ T3609] ? nilfs_dat_commit_end+0x56b/0x610 [ 43.206238][ T3609] report_bug+0x1b3/0x2d0 [ 43.210569][ T3609] handle_bug+0x3d/0x70 [ 43.214725][ T3609] exc_invalid_op+0x16/0x40 [ 43.219232][ T3609] asm_exc_invalid_op+0x16/0x20 [ 43.224078][ T3609] RIP: 0010:nilfs_dat_commit_end+0x56b/0x610 [ 43.230056][ T3609] Code: 48 89 ee 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d e9 69 77 03 00 e8 14 49 40 fe e8 0f 46 b9 fd e9 24 fd ff ff e8 05 49 40 fe <0f> 0b e9 75 fc ff ff e8 f9 48 40 fe e8 f4 45 b9 fd 43 80 7c 25 00 [ 43.249656][ T3609] RSP: 0018:ffffc9000389f2a8 EFLAGS: 00010293 [ 43.255718][ T3609] RAX: ffffffff8347407b RBX: ffff888079c311a0 RCX: ffff8880775a9d80 [ 43.263685][ T3609] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 000023d50af30002 [ 43.271652][ T3609] RBP: 0000000000000003 R08: ffffffff83473ce9 R09: ffffed100f211f9b [ 43.279621][ T3609] R10: ffffed100f211f9b R11: 1ffff1100f211f9a R12: ffff8880723fda40 [ 43.287590][ T3609] R13: ffffc9000389f3b8 R14: ffff888074fb8180 R15: 000023d50af30002 [ 43.295564][ T3609] ? nilfs_dat_commit_end+0x1d9/0x610 [ 43.300933][ T3609] ? nilfs_dat_commit_end+0x56b/0x610 [ 43.306307][ T3609] ? nilfs_dat_commit_end+0x56b/0x610 [ 43.311677][ T3609] nilfs_dat_commit_update+0x25/0x40 [ 43.316954][ T3609] nilfs_direct_propagate+0x215/0x390 [ 43.322325][ T3609] ? nilfs_direct_delete+0x300/0x300 [ 43.327605][ T3609] ? nilfs_lookup_dirty_data_buffers+0x734/0x860 [ 43.333930][ T3609] ? down_write+0x10d/0x170 [ 43.338428][ T3609] ? nilfs_segctor_scan_file+0xaf0/0xaf0 [ 43.344057][ T3609] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 43.350036][ T3609] nilfs_bmap_propagate+0x6d/0x120 [ 43.355144][ T3609] nilfs_collect_file_data+0x49/0xc0 [ 43.360447][ T3609] nilfs_segctor_apply_buffers+0x192/0x380 [ 43.366284][ T3609] ? _compound_head+0x130/0x130 [ 43.371146][ T3609] nilfs_segctor_scan_file+0x842/0xaf0 [ 43.376604][ T3609] ? write_boundary_block+0x150/0x150 [ 43.381973][ T3609] ? do_raw_spin_unlock+0x134/0x8a0 [ 43.387165][ T3609] ? trace_nilfs2_collection_stage_transition+0x220/0x220 [ 43.394281][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 43.399908][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 43.405891][ T3609] ? nilfs_segbuf_reset+0x142/0x320 [ 43.411087][ T3609] nilfs_segctor_do_construct+0x1cce/0x6fe0 [ 43.417110][ T3609] ? nilfs_transaction_unlock+0x210/0x210 [ 43.422821][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 43.428451][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 43.434429][ T3609] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 43.439894][ T3609] ? __up_read+0x690/0x690 [ 43.444307][ T3609] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 43.449759][ T3609] ? do_raw_spin_lock+0x148/0x360 [ 43.454779][ T3609] ? __lock_acquire+0x1f60/0x1f60 [ 43.459801][ T3609] ? do_raw_spin_unlock+0x134/0x8a0 [ 43.464999][ T3609] ? _raw_spin_unlock+0x24/0x40 [ 43.469844][ T3609] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 43.475302][ T3609] nilfs_segctor_construct+0x143/0x8d0 [ 43.480756][ T3609] ? trace_nilfs2_transaction_transition+0xc9/0x240 [ 43.487341][ T3609] nilfs_segctor_thread+0x534/0x1180 [ 43.492621][ T3609] ? __kthread_parkme+0xbd/0x1c0 [ 43.497577][ T3609] ? nilfs_construction_timeout+0x40/0x40 [ 43.503292][ T3609] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 43.509181][ T3609] ? _raw_spin_unlock+0x40/0x40 [ 43.514029][ T3609] ? wake_bit_function+0x240/0x240 [ 43.519137][ T3609] ? _raw_spin_unlock+0x40/0x40 [ 43.523995][ T3609] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 43.529971][ T3609] ? __kthread_parkme+0x166/0x1c0 [ 43.534994][ T3609] kthread+0x266/0x300 [ 43.539059][ T3609] ? nilfs_construction_timeout+0x40/0x40 [ 43.544775][ T3609] ? kthread_blkcg+0xd0/0xd0 [ 43.549360][ T3609] ret_from_fork+0x1f/0x30 [ 43.553784][ T3609] [ 43.557094][ T3609] Kernel Offset: disabled [ 43.561479][ T3609] Rebooting in 86400 seconds..