./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3376953550 <...> Warning: Permanently added '10.128.0.34' (ED25519) to the list of known hosts. execve("./syz-executor3376953550", ["./syz-executor3376953550"], 0x7ffc96403400 /* 10 vars */) = 0 brk(NULL) = 0x5555578e3000 brk(0x5555578e3d00) = 0x5555578e3d00 arch_prctl(ARCH_SET_FS, 0x5555578e3380) = 0 set_tid_address(0x5555578e3650) = 5252 set_robust_list(0x5555578e3660, 24) = 0 rseq(0x5555578e3ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3376953550", 4096) = 28 getrandom("\x8c\x4c\x7b\x46\xf3\x61\x8b\x2c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555578e3d00 brk(0x555557904d00) = 0x555557904d00 brk(0x555557905000) = 0x555557905000 mprotect(0x7f3310f62000, 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 mkdir("./syzkaller.JpNkZm", 0700) = 0 chmod("./syzkaller.JpNkZm", 0777) = 0 chdir("./syzkaller.JpNkZm") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5253 attached [pid 5253] set_robust_list(0x5555578e3660, 24) = 0 [pid 5253] chdir("./0") = 0 [pid 5253] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5252] <... clone resumed>, child_tidptr=0x5555578e3650) = 5253 [pid 5253] <... prctl resumed>) = 0 [pid 5253] setpgid(0, 0) = 0 [pid 5253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5253] write(3, "1000", 4) = 4 [pid 5253] close(3) = 0 [pid 5253] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5253] write(1, "executing program\n", 18) = 18 [pid 5253] memfd_create("syzkaller", 0) = 3 [pid 5253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3308a00000 [pid 5253] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5253] munmap(0x7f3308a00000, 138412032) = 0 [pid 5253] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5253] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5253] close(3) = 0 [pid 5253] close(4) = 0 [pid 5253] mkdir("./file1", 0777) = 0 [ 276.137702][ T5253] loop0: detected capacity change from 0 to 32768 [ 276.173077][ T5253] bcachefs (/dev/loop0): error reading default superblock: checksum error, type crc32c_nonzero: got 6c0dbbf3 should be 29d2fb78 [ 276.215633][ T5253] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,compression=lz4,norecovery,recovery_pass_last=journal_replay,nojournal_transaction_names,nocow [ 276.233347][ T5253] bcachefs (loop0): recovering from clean shutdown, journal seq 7 [ 276.241374][ T5253] bcachefs (loop0): Doing compatible version upgrade from 1.7: mi_btree_bitmap to 1.12: rebalance_work_acct_fix [ 276.241374][ T5253] running recovery passes: check_allocations [ 276.268032][ T5253] invalid bkey u64s 11 type alloc_v4 0:14:0 len 0 ver 0: [ 276.268053][ T5253] gen 0 oldest_gen 0 data_type journal [ 276.268064][ T5253] journal_seq 1 [ 276.268074][ T5253] need_discard 1 [ 276.268084][ T5253] need_inc_gen 1 [ 276.268094][ T5253] dirty_sectors 256 [ 276.268104][ T5253] stripe_sectors 0 [ 276.268113][ T5253] cached_sectors 0 [ 276.268123][ T5253] stripe 67108864 [ 276.268133][ T5253] stripe_redundancy 0 [ 276.268143][ T5253] io_time[READ] 1 [ 276.268153][ T5253] io_time[WRITE] 1 [ 276.268162][ T5253] fragmentation 0 [ 276.268172][ T5253] bp_start 8 [ 276.268182][ T5253] [ 276.268191][ T5253] invalid data type (got 2 should be 7): delete?, fixing [ 276.345509][ T5253] bcachefs (loop0): flagging btree freespace lost data [ 276.354471][ T5253] error reading btree root freespace l=0: btree_node_read_error, fixing [ 276.365262][ T5253] bcachefs (loop0): accounting_read... done [ 276.371313][ T5253] bcachefs (loop0): alloc_read... done [ 276.376927][ T5253] bcachefs (loop0): stripes_read... done [ 276.382724][ T5253] bcachefs (loop0): snapshots_read... done [ 276.388826][ T5253] bcachefs (loop0): check_allocations... [ 276.391492][ T5253] btree ptr not marked in member info btree allocated bitmap [ 276.391513][ T5253] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 75277f57b0c8c24 written 32 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0, fixing [ 276.421600][ T5253] btree ptr not marked in member info btree allocated bitmap [ 276.421616][ T5253] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 19bc58a6c09b6540 written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0, fixing [ 276.444960][ T5253] btree ptr not marked in member info btree allocated bitmap [ 276.444978][ T5253] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c18f4a4face03c6 written 24 min_key POS_MIN durability: 1 ptr: 0:41:0 gen 0, fixing [ 276.468214][ T5253] btree ptr not marked in member info btree allocated bitmap [ 276.468230][ T5253] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 7675f41d391e5d36 written 16 min_key POS_MIN durability: 1 ptr: 0:35:0 gen 0, fixing [ 276.491475][ T5253] btree ptr not marked in member info btree allocated bitmap [ 276.491490][ T5253] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq bcb9905dfb2993d5 written 16 min_key POS_MIN durability: 1 ptr: 0:32:0 gen 0, fixing [ 276.516256][ T5253] bucket 0:14 gen 0 has wrong data_type: got free, should be journal, fixing [ 276.525179][ T5253] bucket 0:14 gen 0 data type journal has wrong dirty_sectors: got 0, should be 256, fixing [ 276.536133][ T5253] bucket 0:29 gen 0 has wrong data_type: got btree, should be need_discard, fixing [ 276.545526][ T5253] bucket 0:29 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing [ 276.558877][ T5253] done [ 276.563519][ T5253] bcachefs (loop0): going read-write [pid 5253] mount("/dev/loop0", "./file1", "bcachefs", 0, "\x65\x72\x72\x6f\x72\x73\x3d\x63\x6f\x6e\x74\x69\x6e\x75\x65\x2c\x69\x6e\x6f\x64\x65\x73\x5f\x33\x32\x62\x69\x74\x2c\x64\x69\x4a\xd5\x4f\x4e\x50\xa8\x28\x4a\x75\x29\x40\xfd\x86\x72\x65\x63\x74\x5f\x69\x6f\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x72\x65\x63\x6f\x76\x65\x72\x79\x5f\x70\x61\x73\x73\x5f\x6c\x61\x73\x74\x3d\x6a\x6f\x75\x72\x6e\x61\x6c\x5f\x72\x65\x70\x6c\x61\x79\x2c\x6e\x6f\x63"...) = 0 [pid 5253] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5253] chdir("./file1") = 0 [pid 5253] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5253] ioctl(4, LOOP_CLR_FD) = 0 [ 276.575940][ T5253] bcachefs (loop0): done starting filesystem [pid 5253] close(4) = 0 [pid 5253] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_CLOEXEC|FASYNC, 000) = 4 [pid 5253] exit_group(0) = ? [pid 5253] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5253, si_uid=0, si_status=0, si_utime=0, si_stime=53 /* 0.53 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x5555578e46f0 /* 4 entries */, 32768) = 112 umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/binderfs") = 0 [ 276.745987][ T5252] bcachefs (loop0): shutting down [ 276.751221][ T5252] bcachefs (loop0): going read-only [ 276.756998][ T5252] bcachefs (loop0): finished waiting for writes to stop [ 276.766469][ T5252] bcachefs (loop0): flushing journal and stopping allocators, journal seq 9 [ 429.272279][ T30] INFO: task bch-reclaim/loo:5262 blocked for more than 143 seconds. [ 429.280537][ T30] Not tainted 6.11.0-syzkaller-11993-g3efc57369a0c #0 [ 429.288205][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.297785][ T30] task:bch-reclaim/loo state:D stack:26040 pid:5262 tgid:5262 ppid:2 flags:0x00004000 [ 429.309218][ T30] Call Trace: [ 429.312734][ T30] [ 429.315690][ T30] __schedule+0x1895/0x4b30 [ 429.320269][ T30] ? __pfx___schedule+0x10/0x10 [ 429.325665][ T30] ? __pfx_lock_release+0x10/0x10 [ 429.330743][ T30] ? __mutex_trylock_common+0x92/0x2e0 [ 429.336584][ T30] ? schedule+0x90/0x320 [ 429.340904][ T30] schedule+0x14b/0x320 [ 429.345583][ T30] schedule_preempt_disabled+0x13/0x30 [ 429.351085][ T30] __mutex_lock+0x6a7/0xd70 [ 429.356057][ T30] ? __mutex_lock+0x52a/0xd70 [ 429.360766][ T30] ? bch2_journal_reclaim_thread+0x167/0x560 [ 429.367231][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 429.372552][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.378243][ T30] ? do_raw_spin_unlock+0x13c/0x8b0 [ 429.384118][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.389810][ T30] bch2_journal_reclaim_thread+0x167/0x560 [ 429.396161][ T30] ? bch2_journal_reclaim_thread+0x249/0x560 [ 429.403296][ T30] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 429.409689][ T30] kthread+0x2f2/0x390 [ 429.414163][ T30] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 429.420520][ T30] ? __pfx_kthread+0x10/0x10 [ 429.425564][ T30] ret_from_fork+0x4d/0x80 [ 429.430021][ T30] ? __pfx_kthread+0x10/0x10 [ 429.434998][ T30] ret_from_fork_asm+0x1a/0x30 [ 429.439818][ T30] [ 429.443325][ T30] [ 429.443325][ T30] Showing all locks held in the system: [ 429.451052][ T30] 1 lock held by khungtaskd/30: [ 429.456570][ T30] #0: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 429.466806][ T30] 2 locks held by getty/4982: [ 429.471506][ T30] #0: ffff88814c6370a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 429.481731][ T30] #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 [ 429.492273][ T30] 3 locks held by syz-executor337/5252: [ 429.497834][ T30] 1 lock held by bch-reclaim/loo/5262: [ 429.503694][ T30] #0: ffff8880409cb0a8 (&j->reclaim_lock){+.+.}-{3:3}, at: bch2_journal_reclaim_thread+0x167/0x560 [ 429.515399][ T30] [ 429.517738][ T30] ============================================= [ 429.517738][ T30] [ 429.526395][ T30] NMI backtrace for cpu 1 [ 429.530760][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-syzkaller-11993-g3efc57369a0c #0 [ 429.540939][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 429.551018][ T30] Call Trace: [ 429.554314][ T30] [ 429.557260][ T30] dump_stack_lvl+0x241/0x360 [ 429.561962][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 429.567181][ T30] ? __pfx__printk+0x10/0x10 [ 429.571815][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 429.576787][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 429.582272][ T30] ? _printk+0xd5/0x120 [ 429.586483][ T30] ? __pfx__printk+0x10/0x10 [ 429.591115][ T30] ? __wake_up_klogd+0xcc/0x110 [ 429.596177][ T30] ? __pfx__printk+0x10/0x10 [ 429.600810][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.606471][ T30] ? __rcu_read_unlock+0xa1/0x110 [ 429.611727][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 429.617745][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 429.623760][ T30] watchdog+0xff4/0x1040 [ 429.628060][ T30] ? watchdog+0x1ea/0x1040 [ 429.632534][ T30] ? __pfx_watchdog+0x10/0x10 [ 429.637246][ T30] kthread+0x2f2/0x390 [ 429.641339][ T30] ? __pfx_watchdog+0x10/0x10 [ 429.646243][ T30] ? __pfx_kthread+0x10/0x10 [ 429.650867][ T30] ret_from_fork+0x4d/0x80 [ 429.655317][ T30] ? __pfx_kthread+0x10/0x10 [ 429.659929][ T30] ret_from_fork_asm+0x1a/0x30 [ 429.664758][ T30] [ 429.667972][ T30] Sending NMI from CPU 1 to CPUs 0: [ 429.673238][ C0] NMI backtrace for cpu 0 [ 429.673252][ C0] CPU: 0 UID: 0 PID: 5252 Comm: syz-executor337 Not tainted 6.11.0-syzkaller-11993-g3efc57369a0c #0 [ 429.673279][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 429.673293][ C0] RIP: 0010:__lock_acquire+0xe77/0x2050 [ 429.673335][ C0] Code: 00 eb d4 49 89 ff 48 c7 c7 20 48 80 8e 48 89 ee e8 fe 03 84 03 4c 89 ff eb 8f 89 d8 25 ff 1f 00 00 c1 eb 03 81 e3 00 60 00 00 <09> c3 4c 89 f0 48 c1 e8 20 29 c3 89 c1 c1 c1 04 31 d9 44 01 f0 41 [ 429.673354][ C0] RSP: 0018:ffffc9000312eb90 EFLAGS: 00000046 [ 429.673375][ C0] RAX: 0000000000000683 RBX: 0000000000000000 RCX: ffff88801f3946e0 [ 429.673392][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: dffffc0000000000 [ 429.673407][ C0] RBP: ffff88801f3947a8 R08: ffffffff94275897 R09: 1ffffffff284eb12 [ 429.673430][ C0] R10: dffffc0000000000 R11: fffffbfff284eb13 R12: 0000000000000000 [ 429.673447][ C0] R13: ffff88801f3946d8 R14: 4d4051aaa3a607a5 R15: ffff88801f3947c8 [ 429.673468][ C0] FS: 00005555578e3380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 429.673489][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 429.673506][ C0] CR2: 00007fc784539580 CR3: 00000000408f6000 CR4: 0000000000350ef0 [ 429.673524][ C0] Call Trace: [ 429.673532][ C0] [ 429.673541][ C0] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 429.673572][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 429.673610][ C0] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 429.673648][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 429.673682][ C0] ? nmi_handle+0x151/0x5a0 [ 429.673708][ C0] ? nmi_handle+0x2a/0x5a0 [ 429.673733][ C0] ? __lock_acquire+0xe77/0x2050 [ 429.673770][ C0] ? default_do_nmi+0x63/0x160 [ 429.673801][ C0] ? exc_nmi+0x123/0x1f0 [ 429.673830][ C0] ? end_repeat_nmi+0xf/0x53 [ 429.673859][ C0] ? __lock_acquire+0xe77/0x2050 [ 429.673897][ C0] ? __lock_acquire+0xe77/0x2050 [ 429.673934][ C0] ? __lock_acquire+0xe77/0x2050 [ 429.673971][ C0] [ 429.673979][ C0] [ 429.673996][ C0] lock_acquire+0x1ed/0x550 [ 429.674032][ C0] ? bch2_btree_write_buffer_flush_locked+0x170/0x59f0 [ 429.674077][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 429.674114][ C0] ? mean_and_variance_weighted_get_mean+0x73/0xc0 [ 429.674146][ C0] ? __pfx___might_resched+0x10/0x10 [ 429.674181][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.674207][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.674232][ C0] ? bch2_trans_begin+0x16c1/0x1c00 [ 429.674274][ C0] __mutex_lock+0x136/0xd70 [ 429.674298][ C0] ? bch2_btree_write_buffer_flush_locked+0x170/0x59f0 [ 429.674339][ C0] ? bch2_btree_write_buffer_flush_locked+0x15e/0x59f0 [ 429.674378][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.674406][ C0] ? bch2_btree_write_buffer_flush_locked+0x170/0x59f0 [ 429.674450][ C0] ? __pfx_bch2_trans_begin+0x10/0x10 [ 429.674487][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 429.674512][ C0] ? __lock_acquire+0x1384/0x2050 [ 429.674549][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.674575][ C0] ? bch2_trans_unlock+0x333/0x470 [ 429.674614][ C0] bch2_btree_write_buffer_flush_locked+0x170/0x59f0 [ 429.674656][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.674683][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.674709][ C0] ? mark_lock+0x9a/0x360 [ 429.674734][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.674759][ C0] ? __lock_acquire+0x1384/0x2050 [ 429.674803][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.674834][ C0] ? __pfx_bch2_btree_write_buffer_flush_locked+0x10/0x10 [ 429.674875][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.674900][ C0] ? __mutex_trylock_common+0x183/0x2e0 [ 429.674938][ C0] ? __pfx___might_resched+0x10/0x10 [ 429.674973][ C0] ? __pfx___mutex_trylock_common+0x10/0x10 [ 429.675003][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.675028][ C0] ? rcu_is_watching+0x15/0xb0 [ 429.675055][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.675081][ C0] ? trace_contention_end+0x3c/0x120 [ 429.675109][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.675134][ C0] ? __mutex_lock+0x2ef/0xd70 [ 429.675158][ C0] ? __bch2_next_write_buffer_flush_journal_buf+0x287/0x2a0 [ 429.675195][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 429.675222][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.675248][ C0] ? bch2_trans_unlock+0x3a6/0x470 [ 429.675287][ C0] btree_write_buffer_flush_seq+0x1a43/0x1bc0 [ 429.675331][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.675361][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 429.675396][ C0] ? __asan_memset+0x23/0x50 [ 429.675438][ C0] ? lockdep_init_map_type+0xa1/0x910 [ 429.675475][ C0] ? __pfx_btree_write_buffer_flush_seq+0x10/0x10 [ 429.675514][ C0] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 429.675553][ C0] ? journal_flush_pins+0x597/0xb20 [ 429.675576][ C0] ? do_raw_spin_lock+0x14f/0x370 [ 429.675611][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.675637][ C0] ? __bch2_trans_get+0x975/0xd20 [ 429.675664][ C0] bch2_btree_write_buffer_journal_flush+0x4e/0x80 [ 429.675705][ C0] ? __pfx_bch2_btree_write_buffer_journal_flush+0x10/0x10 [ 429.675746][ C0] journal_flush_pins+0x5f9/0xb20 [ 429.675781][ C0] journal_flush_done+0x8e/0x260 [ 429.675807][ C0] bch2_journal_flush_pins+0x102/0x3a0 [ 429.675834][ C0] ? __pfx_bch2_journal_flush_pins+0x10/0x10 [ 429.675858][ C0] ? __bch2_print+0x17a/0x220 [ 429.675893][ C0] ? __pfx_bch2_btree_interior_updates_flush+0x10/0x10 [ 429.675932][ C0] ? __pfx___bch2_print+0x10/0x10 [ 429.675967][ C0] ? rcu_is_watching+0x15/0xb0 [ 429.675993][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.676018][ C0] ? kthread_stop+0x2c2/0x640 [ 429.676056][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.676081][ C0] ? bch2_copygc_stop+0x103/0x150 [ 429.676116][ C0] __bch2_fs_read_only+0x124/0x430 [ 429.676155][ C0] bch2_fs_read_only+0xb57/0x1200 [ 429.676199][ C0] ? __pfx_bch2_fs_read_only+0x10/0x10 [ 429.676235][ C0] ? __bch2_print+0x17a/0x220 [ 429.676272][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.676297][ C0] ? down_write+0x18c/0x220 [ 429.676323][ C0] ? __pfx_down_write+0x10/0x10 [ 429.676351][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.676377][ C0] ? hook_sb_delete+0xaa0/0xbd0 [ 429.676419][ C0] __bch2_fs_stop+0x105/0x540 [ 429.676456][ C0] ? __pfx___bch2_fs_stop+0x10/0x10 [ 429.676495][ C0] ? __pfx_evict_inodes+0x10/0x10 [ 429.676523][ C0] ? bch2_sync_fs+0x155/0x300 [ 429.676551][ C0] ? __pfx_bch2_put_super+0x10/0x10 [ 429.676577][ C0] generic_shutdown_super+0x13b/0x2d0 [ 429.676616][ C0] bch2_kill_sb+0x41/0x50 [ 429.676638][ C0] deactivate_locked_super+0xc6/0x130 [ 429.676675][ C0] cleanup_mnt+0x41f/0x4b0 [ 429.676706][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.676731][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 429.676769][ C0] task_work_run+0x251/0x310 [ 429.676799][ C0] ? __pfx_task_work_run+0x10/0x10 [ 429.676825][ C0] ? path_umount+0x284/0xf70 [ 429.676850][ C0] ptrace_notify+0x2d2/0x380 [ 429.676881][ C0] ? __pfx_path_umount+0x10/0x10 [ 429.676918][ C0] ? __pfx_ptrace_notify+0x10/0x10 [ 429.676950][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.676976][ C0] ? __x64_sys_umount+0x123/0x170 [ 429.676997][ C0] ? __pfx___x64_sys_umount+0x10/0x10 [ 429.677021][ C0] syscall_exit_work+0xc6/0x190 [ 429.677044][ C0] syscall_exit_to_user_mode+0x279/0x370 [ 429.677085][ C0] do_syscall_64+0x100/0x230 [ 429.677110][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.677148][ C0] RIP: 0033:0x7f3310ee9387 [ 429.677167][ C0] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 429.677186][ C0] RSP: 002b:00007fff5d7bf888 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 429.677209][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3310ee9387 [ 429.677224][ C0] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff5d7bf940 [ 429.677239][ C0] RBP: 00007fff5d7bf940 R08: 0000000000000000 R09: 0000000000000000 [ 429.677255][ C0] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff5d7c09a0 [ 429.677271][ C0] R13: 00005555578e46c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 429.677295][ C0] [ 429.677304][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 4.066 msecs [ 429.678574][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 430.492333][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-syzkaller-11993-g3efc57369a0c #0 [ 430.502669][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 430.512754][ T30] Call Trace: [ 430.516037][ T30] [ 430.518975][ T30] dump_stack_lvl+0x241/0x360 [ 430.523671][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.528968][ T30] ? __pfx__printk+0x10/0x10 [ 430.533590][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 430.539625][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 430.545273][ T30] ? vscnprintf+0x5d/0x90 [ 430.549629][ T30] panic+0x349/0x880 [ 430.553692][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 430.559378][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 430.565667][ T30] ? __pfx_panic+0x10/0x10 [ 430.570122][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 430.575884][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 430.581817][ T30] ? preempt_schedule_thunk+0x1a/0x30 [ 430.587230][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 430.593408][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 430.599611][ T30] ? srso_alias_return_thunk+0x5/0xfbef5 [ 430.605271][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 430.611467][ T30] watchdog+0x1033/0x1040 [ 430.615827][ T30] ? watchdog+0x1ea/0x1040 [ 430.620267][ T30] ? __pfx_watchdog+0x10/0x10 [ 430.624967][ T30] kthread+0x2f2/0x390 [ 430.629051][ T30] ? __pfx_watchdog+0x10/0x10 [ 430.633748][ T30] ? __pfx_kthread+0x10/0x10 [ 430.638346][ T30] ret_from_fork+0x4d/0x80 [ 430.642782][ T30] ? __pfx_kthread+0x10/0x10 [ 430.647387][ T30] ret_from_fork_asm+0x1a/0x30 [ 430.652189][ T30] [ 430.655445][ T30] Kernel Offset: disabled [ 430.659767][ T30] Rebooting in 86400 seconds..