./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor284021014 <...> Warning: Permanently added '10.128.10.8' (ECDSA) to the list of known hosts. execve("./syz-executor284021014", ["./syz-executor284021014"], 0x7ffe260718e0 /* 10 vars */) = 0 brk(NULL) = 0x55555603e000 brk(0x55555603ec40) = 0x55555603ec40 arch_prctl(ARCH_SET_FS, 0x55555603e300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor284021014", 4096) = 27 brk(0x55555605fc40) = 0x55555605fc40 brk(0x555556060000) = 0x555556060000 mprotect(0x7efdb2b57000, 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 4993 attached , child_tidptr=0x55555603e5d0) = 4993 [pid 4993] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 4993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4993] setsid() = 1 [pid 4993] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 4993] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 4993] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 4993] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 4993] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 4993] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 4993] unshare(CLONE_NEWNS) = 0 [pid 4993] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 4993] unshare(CLONE_NEWIPC) = 0 [pid 4993] unshare(CLONE_NEWCGROUP) = 0 [pid 4993] unshare(CLONE_NEWUTS) = 0 [pid 4993] unshare(CLONE_SYSVSEM) = 0 [pid 4993] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4993] write(3, "16777216", 8) = 8 [pid 4993] close(3) = 0 [pid 4993] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 4993] write(3, "536870912", 9) = 9 [pid 4993] close(3) = 0 [pid 4993] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4993] write(3, "1024", 4) = 4 [pid 4993] close(3) = 0 [pid 4993] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4993] write(3, "8192", 4) = 4 [pid 4993] close(3) = 0 [pid 4993] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4993] write(3, "1024", 4) = 4 [pid 4993] close(3) = 0 [pid 4993] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 4993] write(3, "1024", 4) = 4 [pid 4993] close(3) = 0 [pid 4993] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 4993] write(3, "1024 1048576 500 1024", 21) = 21 [pid 4993] close(3) = 0 [pid 4993] getpid() = 1 [pid 4993] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 41 bd e4 ff ff ff e9 a1 fa ff ff 89 f9 80 e1 07 38 c1 0f 8c [ 57.270634][ T75] RSP: 0018:ffffc90001596a40 EFLAGS: 00010293 [ 57.276728][ T75] RAX: ffffffff83197b74 RBX: ffffffffffffffff RCX: ffff88801a688000 [ 57.284724][ T75] RDX: 0000000000000000 RSI: ffffffffffffffff RDI: ffffffffffffffff [ 57.292680][ T75] RBP: ffffc90001596c70 R08: ffffffff8319759a R09: fffffbfff1cab88e [ 57.300670][ T75] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90001596b80 [ 57.308664][ T75] R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920002b2d5c [ 57.316658][ T75] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 57.325608][ T75] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.332174][ T75] CR2: 000055c50d12dee0 CR3: 0000000075f19000 CR4: 00000000003506e0 [ 57.340170][ T75] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.348162][ T75] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.356158][ T75] Call Trace: [ 57.359436][ T75] [ 57.362358][ T75] ? xfs_bmapi_finish+0x3d0/0x3d0 [ 57.367426][ T75] ? xfs_iext_lookup_extent+0x5fe/0x890 [ 57.372984][ T75] ? rcu_is_watching+0x15/0xb0 [ 57.377777][ T75] ? xfs_map_blocks+0x56b/0x1090 [ 57.382718][ T75] xfs_map_blocks+0x780/0x1090 [ 57.387524][ T75] ? xfs_dax_writepages+0x180/0x180 [ 57.392727][ T75] ? i_blocks_per_folio+0x11b/0x270 [ 57.397962][ T75] iomap_do_writepage+0x93b/0x2ed0 [ 57.403096][ T75] ? iomap_writepages+0x240/0x240 [ 57.408153][ T75] write_cache_pages+0x89e/0x12b0 [ 57.413192][ T75] ? iomap_writepages+0x240/0x240 [ 57.418244][ T75] ? tag_pages_for_writeback+0x6a0/0x6a0 [ 57.423903][ T75] iomap_writepages+0x68/0x240 [ 57.428695][ T75] xfs_vm_writepages+0x139/0x1a0 [ 57.433637][ T75] ? read_lock_is_recursive+0x20/0x20 [ 57.439039][ T75] ? xfs_vm_read_folio+0x20/0x20 [ 57.443988][ T75] ? do_raw_spin_unlock+0x13b/0x8b0 [ 57.449222][ T75] ? xfs_vm_read_folio+0x20/0x20 [ 57.454176][ T75] do_writepages+0x3a6/0x670 [ 57.458822][ T75] ? folio_nr_pages+0x1c0/0x1c0 [ 57.463665][ T75] ? wbc_attach_and_unlock_inode+0x2ff/0x560 [ 57.469673][ T75] ? __lock_acquire+0x2000/0x2000 [ 57.474732][ T75] ? do_raw_spin_unlock+0x13b/0x8b0 [ 57.479921][ T75] __writeback_single_inode+0x155/0xfa0 [ 57.485499][ T75] writeback_sb_inodes+0x8e3/0x11d0 [ 57.490724][ T75] ? queue_io+0x570/0x570 [ 57.495087][ T75] ? __writeback_inodes_wb+0x260/0x260 [ 57.500562][ T75] ? queue_io+0x3d5/0x570 [ 57.504930][ T75] wb_writeback+0x458/0xc70 [ 57.509449][ T75] ? rcu_lock_release+0x30/0x30 [ 57.514335][ T75] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 57.520332][ T75] wb_workfn+0x400/0xff0 [ 57.524622][ T75] ? inode_wait_for_writeback+0x290/0x290 [ 57.530352][ T75] ? read_lock_is_recursive+0x20/0x20 [ 57.535752][ T75] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 57.541739][ T75] ? print_irqtrace_events+0x220/0x220 [ 57.547240][ T75] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 57.553152][ T75] process_one_work+0x8a0/0x10e0 [ 57.558134][ T75] ? worker_detach_from_pool+0x290/0x290 [ 57.563776][ T75] ? _raw_spin_lock_irqsave+0x120/0x120 [ 57.569340][ T75] ? kthread_data+0x52/0xc0 [ 57.573852][ T75] ? wq_worker_running+0x9b/0x1a0 [ 57.578903][ T75] worker_thread+0xa63/0x1210 [ 57.583593][ T75] ? _raw_spin_unlock+0x40/0x40 [ 57.588478][ T75] kthread+0x2b8/0x350 [ 57.592550][ T75] ? pr_cont_work+0x5e0/0x5e0 [ 57.597250][ T75] ? kthread_blkcg+0xd0/0xd0 [ 57.601852][ T75] ret_from_fork+0x1f/0x30 [ 57.606313][ T75] [ 57.609332][ T75] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 57.616595][ T75] CPU: 1 PID: 75 Comm: kworker/u4:4 Not tainted 6.4.0-rc2-syzkaller-00018-g4d6d4c7f541d #0 [ 57.626552][ T75] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 57.636590][ T75] Workqueue: writeback wb_workfn (flush-7:0) [ 57.642565][ T75] Call Trace: [ 57.645830][ T75] [ 57.648771][ T75] dump_stack_lvl+0x1e7/0x2d0 [ 57.653437][ T75] ? nf_tcp_handle_invalid+0x650/0x650 [ 57.658880][ T75] ? panic+0x770/0x770 [ 57.662954][ T75] ? vscnprintf+0x5d/0x80 [ 57.667271][ T75] panic+0x30f/0x770 [ 57.671149][ T75] ? __warn+0x171/0x4a0 [ 57.675291][ T75] ? __memcpy_flushcache+0x2b0/0x2b0 [ 57.680566][ T75] ? ret_from_fork+0x1f/0x30 [ 57.685155][ T75] __warn+0x314/0x4a0 [ 57.689145][ T75] ? xfs_bmapi_convert_delalloc+0xfc4/0x1310 [ 57.695111][ T75] report_bug+0x2b3/0x500 [ 57.699422][ T75] ? xfs_bmapi_convert_delalloc+0xfc4/0x1310 [ 57.705387][ T75] handle_bug+0x3d/0x70 [ 57.709523][ T75] exc_invalid_op+0x1a/0x50 [ 57.714004][ T75] asm_exc_invalid_op+0x1a/0x20 [ 57.718841][ T75] RIP: 0010:xfs_bmapi_convert_delalloc+0xfc4/0x1310 [ 57.725416][ T75] Code: 52 01 72 fe 0f 0b e9 42 f4 ff ff 89 d9 80 e1 07 38 c1 0f 8c 12 f2 ff ff 48 89 df e8 86 d2 c9 fe e9 05 f2 ff ff e8 2c 01 72 fe <0f> 0b 41 bd e4 ff ff ff e9 a1 fa ff ff 89 f9 80 e1 07 38 c1 0f 8c [ 57.745003][ T75] RSP: 0018:ffffc90001596a40 EFLAGS: 00010293 [ 57.751049][ T75] RAX: ffffffff83197b74 RBX: ffffffffffffffff RCX: ffff88801a688000 [ 57.759003][ T75] RDX: 0000000000000000 RSI: ffffffffffffffff RDI: ffffffffffffffff [ 57.766956][ T75] RBP: ffffc90001596c70 R08: ffffffff8319759a R09: fffffbfff1cab88e [ 57.774911][ T75] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90001596b80 [ 57.782862][ T75] R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920002b2d5c [ 57.790819][ T75] ? xfs_bmapi_convert_delalloc+0x9ea/0x1310 [ 57.796783][ T75] ? xfs_bmapi_convert_delalloc+0xfc4/0x1310 [ 57.802756][ T75] ? xfs_bmapi_finish+0x3d0/0x3d0 [ 57.807774][ T75] ? xfs_iext_lookup_extent+0x5fe/0x890 [ 57.813306][ T75] ? rcu_is_watching+0x15/0xb0 [ 57.818050][ T75] ? xfs_map_blocks+0x56b/0x1090 [ 57.822969][ T75] xfs_map_blocks+0x780/0x1090 [ 57.827721][ T75] ? xfs_dax_writepages+0x180/0x180 [ 57.832922][ T75] ? i_blocks_per_folio+0x11b/0x270 [ 57.838120][ T75] iomap_do_writepage+0x93b/0x2ed0 [ 57.843231][ T75] ? iomap_writepages+0x240/0x240 [ 57.848248][ T75] write_cache_pages+0x89e/0x12b0 [ 57.853268][ T75] ? iomap_writepages+0x240/0x240 [ 57.858295][ T75] ? tag_pages_for_writeback+0x6a0/0x6a0 [ 57.863932][ T75] iomap_writepages+0x68/0x240 [ 57.868693][ T75] xfs_vm_writepages+0x139/0x1a0 [ 57.873636][ T75] ? read_lock_is_recursive+0x20/0x20 [ 57.879005][ T75] ? xfs_vm_read_folio+0x20/0x20 [ 57.883935][ T75] ? do_raw_spin_unlock+0x13b/0x8b0 [ 57.889120][ T75] ? xfs_vm_read_folio+0x20/0x20 [ 57.894040][ T75] do_writepages+0x3a6/0x670 [ 57.898622][ T75] ? folio_nr_pages+0x1c0/0x1c0 [ 57.903460][ T75] ? wbc_attach_and_unlock_inode+0x2ff/0x560 [ 57.909427][ T75] ? __lock_acquire+0x2000/0x2000 [ 57.914456][ T75] ? do_raw_spin_unlock+0x13b/0x8b0 [ 57.919645][ T75] __writeback_single_inode+0x155/0xfa0 [ 57.925196][ T75] writeback_sb_inodes+0x8e3/0x11d0 [ 57.930403][ T75] ? queue_io+0x570/0x570 [ 57.934742][ T75] ? __writeback_inodes_wb+0x260/0x260 [ 57.940195][ T75] ? queue_io+0x3d5/0x570 [ 57.944518][ T75] wb_writeback+0x458/0xc70 [ 57.949015][ T75] ? rcu_lock_release+0x30/0x30 [ 57.953849][ T75] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 57.959829][ T75] wb_workfn+0x400/0xff0 [ 57.964075][ T75] ? inode_wait_for_writeback+0x290/0x290 [ 57.969791][ T75] ? read_lock_is_recursive+0x20/0x20 [ 57.975153][ T75] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 57.981121][ T75] ? print_irqtrace_events+0x220/0x220 [ 57.986572][ T75] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 57.992454][ T75] process_one_work+0x8a0/0x10e0 [ 57.997399][ T75] ? worker_detach_from_pool+0x290/0x290 [ 58.003023][ T75] ? _raw_spin_lock_irqsave+0x120/0x120 [ 58.008567][ T75] ? kthread_data+0x52/0xc0 [ 58.013053][ T75] ? wq_worker_running+0x9b/0x1a0 [ 58.018065][ T75] worker_thread+0xa63/0x1210 [ 58.022733][ T75] ? _raw_spin_unlock+0x40/0x40 [ 58.027572][ T75] kthread+0x2b8/0x350 [ 58.031627][ T75] ? pr_cont_work+0x5e0/0x5e0 [ 58.036286][ T75] ? kthread_blkcg+0xd0/0xd0 [ 58.040859][ T75] ret_from_fork+0x1f/0x30 [ 58.045288][ T75] [ 58.048477][ T75] Kernel Offset: disabled [ 58.052879][ T75] Rebooting in 86400 seconds..