BTRFS info (device loop3): last unmount of filesystem 4c1fcdf8-8d4e-4990-89c6-7daf19597a98
BUG: MAX_LOCKDEP_KEYS too low!
turning off the locking correctness validator.
CPU: 1 PID: 19407 Comm: syz-executor.3 Not tainted 6.8.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
 register_lock_class+0x822/0x980 kernel/locking/lockdep.c:1321
 __lock_acquire+0xd9/0x1fd0 kernel/locking/lockdep.c:5014
 lock_acquire+0x1e3/0x530 kernel/locking/lockdep.c:5754
 __flush_workqueue+0x174/0x1630 kernel/workqueue.c:3146
 close_ctree+0x307/0xd40 fs/btrfs/disk-io.c:4297
 generic_shutdown_super+0x136/0x2d0 fs/super.c:641
 kill_anon_super+0x3b/0x70 fs/super.c:1225
 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2093
 deactivate_locked_super+0xc4/0x130 fs/super.c:472
 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267
 task_work_run+0x24e/0x310 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:108 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
 syscall_exit_to_user_mode+0x167/0x360 kernel/entry/common.c:212
 do_syscall_64+0x108/0x240 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7ffa21e7f0d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe83798aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ffa21e7f0d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffe83798b60
RBP: 00007ffe83798b60 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe83799c20
R13: 00007ffa21ec93b9 R14: 00000000001e5c36 R15: 0000000000000005
 </TASK>
BTRFS info (device loop3): last unmount of filesystem 9d1e486c-9e91-473e-9896-4b8b2c026cbb
BTRFS info (device loop3): last unmount of filesystem 8f841229-b99c-4e4c-a765-d8c03a0127c0
BTRFS info (device loop3): last unmount of filesystem 88a1092b-2c69-407d-bcef-0efc5fd80994
BTRFS info (device loop3): last unmount of filesystem 4ac54a12-743f-4320-9488-bd4a696f6876
BTRFS info (device loop3): last unmount of filesystem 395ef67a-297e-477c-816d-cd80a5b93e5d
BTRFS info (device loop3): last unmount of filesystem 395ef67a-297e-477c-816d-cd80a5b93e5d
BTRFS info (device loop3): last unmount of filesystem 395ef67a-297e-477c-816d-cd80a5b93e5d
BTRFS info (device loop3): last unmount of filesystem c14b8cb0-8067-4c6a-9e94-7946d83f4a60
BTRFS info (device loop3): last unmount of filesystem bd123d43-2876-464f-aae9-3ed69796d6ad
BTRFS info (device loop3): last unmount of filesystem 288e2365-afa7-4941-bd21-1f154d90abf0
BTRFS info (device loop3): last unmount of filesystem bf620632-8209-40e2-9300-3b06ec0dfa8a
BTRFS info (device loop3): last unmount of filesystem ebace079-4327-41a5-9e1c-b6b3e9dd7d7a
BTRFS info (device loop3): last unmount of filesystem b3ae5ae2-4c20-44e8-9143-2c639f6fff91