./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor147333377 <...> DUID 00:04:06:88:74:a7:04:75:62:cb:55:93:34:09:94:90:e1:fe forked to background, child pid 3180 [ 23.202546][ T3181] 8021q: adding VLAN 0 to HW filter on device bond0 [ 23.211977][ T3181] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.104' (ECDSA) to the list of known hosts. execve("./syz-executor147333377", ["./syz-executor147333377"], 0x7fff73ee1090 /* 10 vars */) = 0 brk(NULL) = 0x555557401000 brk(0x555557401c40) = 0x555557401c40 arch_prctl(ARCH_SET_FS, 0x555557401300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor147333377", 4096) = 27 brk(0x555557422c40) = 0x555557422c40 brk(0x555557423000) = 0x555557423000 mprotect(0x7f36f27b1000, 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, child_tidptr=0x5555574015d0) = 3602 ./strace-static-x86_64: Process 3602 attached [pid 3602] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3602] setsid() = 1 [pid 3602] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3602] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3602] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3602] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3602] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3602] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3602] unshare(CLONE_NEWNS) = 0 [pid 3602] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3602] unshare(CLONE_NEWIPC) = 0 [pid 3602] unshare(CLONE_NEWCGROUP) = 0 [pid 3602] unshare(CLONE_NEWUTS) = 0 [pid 3602] unshare(CLONE_SYSVSEM) = 0 [pid 3602] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3602] write(3, "16777216", 8) = 8 [pid 3602] close(3) = 0 [pid 3602] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3602] write(3, "536870912", 9) = 9 [pid 3602] close(3) = 0 [pid 3602] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3602] write(3, "1024", 4) = 4 [pid 3602] close(3) = 0 [pid 3602] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3602] write(3, "8192", 4) = 4 [pid 3602] close(3) = 0 [pid 3602] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3602] write(3, "1024", 4) = 4 [pid 3602] close(3) = 0 [pid 3602] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3602] write(3, "1024", 4) = 4 [pid 3602] close(3) = 0 [pid 3602] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3602] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3602] close(3) = 0 [pid 3602] getpid() = 1 [pid 3602] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 4d 89 ef e9 35 fd ff ff e8 f7 5b 57 fe e8 32 3e db fd e9 c6 [ 38.970432][ T3603] RSP: 0018:ffffc90003cbf828 EFLAGS: 00010293 [ 38.976482][ T3603] RAX: 0000000000000000 RBX: ffff88802641ca40 RCX: 0000000000000000 [ 38.984902][ T3603] RDX: ffff88807d389d40 RSI: ffffffff8325392a RDI: 0000000000000006 [ 38.992892][ T3603] RBP: ffffc90003cbf8d0 R08: 0000000000000006 R09: 000023d50af30002 [ 39.000880][ T3603] R10: 0000000000000003 R11: 0000000000000001 R12: ffff888072fe8158 [ 39.008868][ T3603] R13: 0000000000000003 R14: ffffc90003cbf8e8 R15: 000023d50af30002 [ 39.016825][ T3603] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 39.025771][ T3603] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.032372][ T3603] CR2: 00007f36f27b81d0 CR3: 000000000ba8e000 CR4: 00000000003506e0 [ 39.040357][ T3603] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.048756][ T3603] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.056939][ T3603] Call Trace: [ 39.060239][ T3603] [ 39.063169][ T3603] nilfs_dat_commit_update+0x26/0x40 [ 39.068481][ T3603] nilfs_direct_propagate+0x244/0x320 [ 39.073872][ T3603] ? nilfs_direct_propagate+0x0/0x320 [ 39.079283][ T3603] ? nilfs_lookup_dirty_node_buffers+0x0/0x5b0 [ 39.085459][ T3603] ? do_raw_spin_lock+0x120/0x2a0 [ 39.090518][ T3603] nilfs_bmap_propagate+0x73/0x170 [ 39.095696][ T3603] nilfs_collect_file_data+0x45/0xd0 [ 39.101031][ T3603] nilfs_segctor_apply_buffers+0x14a/0x470 [ 39.106855][ T3603] ? nilfs_collect_file_data+0x0/0xd0 [ 39.112283][ T3603] nilfs_segctor_scan_file+0x3f4/0x6f0 [ 39.117757][ T3603] ? nilfs_segctor_scan_file+0x0/0x6f0 [ 39.123248][ T3603] ? nilfs_sufile_mark_dirty+0x11e/0x230 [ 39.128910][ T3603] ? nilfs_segbuf_reset+0x16a/0x1c0 [ 39.134115][ T3603] nilfs_segctor_do_construct+0x239c/0x6af0 [ 39.140063][ T3603] ? nilfs_segctor_do_construct+0x0/0x6af0 [ 39.145886][ T3603] ? do_raw_spin_lock+0x120/0x2a0 [ 39.150934][ T3603] ? do_raw_spin_lock+0x0/0x2a0 [ 39.155794][ T3603] ? do_raw_spin_unlock+0x171/0x230 [ 39.161013][ T3603] ? _raw_spin_unlock+0x24/0x40 [ 39.166057][ T3603] nilfs_segctor_construct+0x8e3/0xb30 [ 39.171632][ T3603] ? rcu_read_lock_sched_held+0xd/0x70 [ 39.177111][ T3603] ? trace_nilfs2_transaction_transition+0x227/0x2e0 [ 39.183818][ T3603] nilfs_segctor_thread+0x3c3/0xf30 [ 39.189047][ T3603] ? nilfs_segctor_thread+0x0/0xf30 [ 39.194244][ T3603] ? do_raw_spin_lock+0x0/0x2a0 [ 39.199132][ T3603] ? __schedule+0x0/0x53f0 [ 39.203578][ T3603] ? autoremove_wake_function+0x0/0x140 [ 39.209194][ T3603] ? __kthread_parkme+0x15f/0x220 [ 39.214227][ T3603] ? nilfs_segctor_thread+0x0/0xf30 [ 39.219465][ T3603] kthread+0x2e4/0x3a0 [ 39.223539][ T3603] ? kthread+0x0/0x3a0 [ 39.227601][ T3603] ret_from_fork+0x1f/0x30 [ 39.232050][ T3603] [ 39.235073][ T3603] Kernel panic - not syncing: panic_on_warn set ... [ 39.241643][ T3603] CPU: 1 PID: 3603 Comm: segctord Not tainted 6.1.0-rc1-next-20221021-syzkaller #0 [ 39.250909][ T3603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 39.260945][ T3603] Call Trace: [ 39.264211][ T3603] [ 39.267129][ T3603] dump_stack_lvl+0xcd/0x134 [ 39.271713][ T3603] panic+0x2c8/0x622 [ 39.275772][ T3603] ? panic+0x0/0x622 [ 39.279678][ T3603] ? __warn.cold+0x24b/0x350 [ 39.284260][ T3603] ? nilfs_dat_commit_end+0x49a/0x5f0 [ 39.289625][ T3603] __warn.cold+0x25c/0x350 [ 39.294110][ T3603] ? nilfs_dat_commit_end+0x49a/0x5f0 [ 39.299470][ T3603] report_bug+0x1bc/0x210 [ 39.303788][ T3603] handle_bug+0x3c/0x70 [ 39.307940][ T3603] exc_invalid_op+0x14/0x40 [ 39.312437][ T3603] asm_exc_int3-0xa/0x40 [ 39.316673][ T3603] RIP: 0010:nilfs_dat_commit_end+0x49a/0x5f0 [ 39.322639][ T3603] Code: 41 5f e9 29 5c 57 fe e8 24 5c 57 fe 48 89 ee 4c 89 e7 e8 09 f0 ff ff eb db e8 12 5c 57 fe e8 4d 3e db fd eb b4 e8 06 5c 57 fe <0f> 0b 4d 89 ef e9 35 fd ff ff e8 f7 5b 57 fe e8 32 3e db fd e9 c6 [ 39.342229][ T3603] RSP: 0018:ffffc90003cbf828 EFLAGS: 00010293 [ 39.348279][ T3603] RAX: 0000000000000000 RBX: ffff88802641ca40 RCX: 0000000000000000 [ 39.356234][ T3603] RDX: ffff88807d389d40 RSI: ffffffff8325392a RDI: 0000000000000006 [ 39.364191][ T3603] RBP: ffffc90003cbf8d0 R08: 0000000000000006 R09: 000023d50af30002 [ 39.372163][ T3603] R10: 0000000000000003 R11: 0000000000000001 R12: ffff888072fe8158 [ 39.380137][ T3603] R13: 0000000000000003 R14: ffffc90003cbf8e8 R15: 000023d50af30002 [ 39.388120][ T3603] ? nilfs_dat_commit_end+0x49a/0x5f0 [ 39.393506][ T3603] ? nilfs_dat_commit_end+0x49a/0x5f0 [ 39.398884][ T3603] nilfs_dat_commit_update+0x26/0x40 [ 39.404178][ T3603] nilfs_direct_propagate+0x244/0x320 [ 39.409555][ T3603] ? nilfs_direct_propagate+0x0/0x320 [ 39.414932][ T3603] ? nilfs_lookup_dirty_node_buffers+0x0/0x5b0 [ 39.421097][ T3603] ? do_raw_spin_lock+0x120/0x2a0 [ 39.426138][ T3603] nilfs_bmap_propagate+0x73/0x170 [ 39.431249][ T3603] nilfs_collect_file_data+0x45/0xd0 [ 39.436548][ T3603] nilfs_segctor_apply_buffers+0x14a/0x470 [ 39.442360][ T3603] ? nilfs_collect_file_data+0x0/0xd0 [ 39.447746][ T3603] nilfs_segctor_scan_file+0x3f4/0x6f0 [ 39.453211][ T3603] ? nilfs_segctor_scan_file+0x0/0x6f0 [ 39.458673][ T3603] ? nilfs_sufile_mark_dirty+0x11e/0x230 [ 39.464313][ T3603] ? nilfs_segbuf_reset+0x16a/0x1c0 [ 39.469514][ T3603] nilfs_segctor_do_construct+0x239c/0x6af0 [ 39.475418][ T3603] ? nilfs_segctor_do_construct+0x0/0x6af0 [ 39.481228][ T3603] ? do_raw_spin_lock+0x120/0x2a0 [ 39.486252][ T3603] ? do_raw_spin_lock+0x0/0x2a0 [ 39.491101][ T3603] ? do_raw_spin_unlock+0x171/0x230 [ 39.496297][ T3603] ? _raw_spin_unlock+0x24/0x40 [ 39.501149][ T3603] nilfs_segctor_construct+0x8e3/0xb30 [ 39.506612][ T3603] ? rcu_read_lock_sched_held+0xd/0x70 [ 39.512077][ T3603] ? trace_nilfs2_transaction_transition+0x227/0x2e0 [ 39.518757][ T3603] nilfs_segctor_thread+0x3c3/0xf30 [ 39.523967][ T3603] ? nilfs_segctor_thread+0x0/0xf30 [ 39.529172][ T3603] ? do_raw_spin_lock+0x0/0x2a0 [ 39.534024][ T3603] ? __schedule+0x0/0x53f0 [ 39.538450][ T3603] ? autoremove_wake_function+0x0/0x140 [ 39.543995][ T3603] ? __kthread_parkme+0x15f/0x220 [ 39.549022][ T3603] ? nilfs_segctor_thread+0x0/0xf30 [ 39.554226][ T3603] kthread+0x2e4/0x3a0 [ 39.558292][ T3603] ? kthread+0x0/0x3a0 [ 39.562362][ T3603] ret_from_fork+0x1f/0x30 [ 39.566790][ T3603] [ 39.569953][ T3603] Kernel Offset: disabled [ 39.574267][ T3603] Rebooting in 86400 seconds..