./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4223265773 <...> Warning: Permanently added '10.128.1.25' (ECDSA) to the list of known hosts. execve("./syz-executor4223265773", ["./syz-executor4223265773"], 0x7ffc7e04cf50 /* 10 vars */) = 0 brk(NULL) = 0x55555730e000 brk(0x55555730ec40) = 0x55555730ec40 arch_prctl(ARCH_SET_FS, 0x55555730e300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor4223265773", 4096) = 28 brk(0x55555732fc40) = 0x55555732fc40 brk(0x555557330000) = 0x555557330000 mprotect(0x7f7002687000, 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=0x55555730e5d0) = 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< 3c 02 00 0f 85 26 05 00 00 49 8b 46 10 be a6 00 00 00 48 c7 c7 [ 36.167330][ T3603] RSP: 0018:ffffc90003dff830 EFLAGS: 00010212 [ 36.173463][ T3603] RAX: dffffc0000000000 RBX: ffff88802594e218 RCX: 000000000000000d [ 36.181413][ T3603] RDX: 0000000000000002 RSI: 0000000000002000 RDI: 0000000000000010 [ 36.189363][ T3603] RBP: ffff888071880222 R08: 0000000000000005 R09: 000000000000003f [ 36.197308][ T3603] R10: 000000000000000d R11: 0000000000000000 R12: ffff888071880158 [ 36.205269][ T3603] R13: ffff88802594e220 R14: 0000000000000000 R15: 0000000000000004 [ 36.213227][ T3603] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 36.222141][ T3603] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.228709][ T3603] CR2: 00007fb1c08316a8 CR3: 0000000018560000 CR4: 0000000000350ee0 [ 36.236665][ T3603] Call Trace: [ 36.239926][ T3603] [ 36.242846][ T3603] nilfs_dat_commit_end+0x464/0x5f0 [ 36.248040][ T3603] nilfs_dat_commit_update+0x26/0x40 [ 36.253316][ T3603] nilfs_btree_commit_update_v+0x87/0x4a0 [ 36.259029][ T3603] nilfs_btree_propagate+0xa00/0xd60 [ 36.264308][ T3603] nilfs_bmap_propagate+0x73/0x170 [ 36.269408][ T3603] nilfs_collect_file_data+0x45/0xd0 [ 36.274680][ T3603] nilfs_segctor_apply_buffers+0x14a/0x470 [ 36.280473][ T3603] ? nilfs_collect_dat_data+0xd0/0xd0 [ 36.285834][ T3603] nilfs_segctor_scan_file+0x3f4/0x6f0 [ 36.291278][ T3603] ? nilfs_lookup_dirty_data_buffers+0x7a0/0x7a0 [ 36.297591][ T3603] ? nilfs_sufile_mark_dirty+0x11e/0x230 [ 36.303210][ T3603] ? nilfs_segbuf_reset+0x16a/0x1c0 [ 36.308397][ T3603] nilfs_segctor_do_construct+0x12fc/0x6af0 [ 36.314284][ T3603] ? nilfs_segctor_abort_construction+0xe20/0xe20 [ 36.320686][ T3603] ? do_raw_spin_lock+0x120/0x2a0 [ 36.325696][ T3603] ? rwlock_bug.part.0+0x90/0x90 [ 36.330622][ T3603] ? do_raw_spin_unlock+0x171/0x230 [ 36.335807][ T3603] ? _raw_spin_unlock+0x24/0x40 [ 36.340649][ T3603] nilfs_segctor_construct+0x8e3/0xb30 [ 36.346094][ T3603] ? rcu_read_lock_sched_held+0xd/0x70 [ 36.351536][ T3603] ? trace_nilfs2_transaction_transition+0x227/0x2e0 [ 36.358199][ T3603] nilfs_segctor_thread+0x3c3/0xf30 [ 36.363406][ T3603] ? nilfs_segctor_construct+0xb30/0xb30 [ 36.369026][ T3603] ? rwlock_bug.part.0+0x90/0x90 [ 36.373950][ T3603] ? io_schedule_timeout+0x140/0x140 [ 36.379230][ T3603] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 36.385021][ T3603] ? __kthread_parkme+0x15f/0x220 [ 36.390031][ T3603] ? nilfs_segctor_construct+0xb30/0xb30 [ 36.395652][ T3603] kthread+0x2e4/0x3a0 [ 36.399707][ T3603] ? kthread_complete_and_exit+0x40/0x40 [ 36.405347][ T3603] ret_from_fork+0x1f/0x30 [ 36.409756][ T3603] [ 36.412756][ T3603] Modules linked in: [ 36.416772][ T3603] ---[ end trace 0000000000000000 ]--- [ 36.422281][ T3603] RIP: 0010:nilfs_palloc_commit_free_entry+0xe5/0x6b0 [ 36.429252][ T3603] Code: 00 00 00 00 fc ff df 80 3c 02 00 0f 85 cd 05 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 73 08 49 8d 7e 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 26 05 00 00 49 8b 46 10 be a6 00 00 00 48 c7 c7 [ 36.448912][ T3603] RSP: 0018:ffffc90003dff830 EFLAGS: 00010212 [ 36.454969][ T3603] RAX: dffffc0000000000 RBX: ffff88802594e218 RCX: 000000000000000d [ 36.462962][ T3603] RDX: 0000000000000002 RSI: 0000000000002000 RDI: 0000000000000010 [ 36.470949][ T3603] RBP: ffff888071880222 R08: 0000000000000005 R09: 000000000000003f [ 36.478933][ T3603] R10: 000000000000000d R11: 0000000000000000 R12: ffff888071880158 [ 36.486917][ T3603] R13: ffff88802594e220 R14: 0000000000000000 R15: 0000000000000004 [ 36.494908][ T3603] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 36.503871][ T3603] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.510486][ T3603] CR2: 00007fb1c08316a8 CR3: 0000000018560000 CR4: 0000000000350ee0 [ 36.518487][ T3603] Kernel panic - not syncing: Fatal exception [ 36.525390][ T3603] Kernel Offset: disabled [ 36.529697][ T3603] Rebooting in 86400 seconds..