BTRFS info (device loop3): last unmount of filesystem 1af1fbfe-f369-4357-bb82-5e0021ec2eda
BUG: MAX_LOCKDEP_KEYS too low!
turning off the locking correctness validator.
CPU: 1 PID: 16214 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+0x2d8/0xd40 fs/btrfs/disk-io.c:4295
 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: 0033:0x7fbb0c47f0d7
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:00007ffdbae75128 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbb0c47f0d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffdbae751e0
RBP: 00007ffdbae751e0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffdbae762a0
R13: 00007fbb0c4c93b9 R14: 000000000019d3d2 R15: 0000000000000003
 </TASK>
BTRFS info (device loop3): last unmount of filesystem f08f3082-b88c-41b6-befc-66b970874ff7
BTRFS info (device loop3): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
BTRFS info (device loop3): last unmount of filesystem b1f33c0f-9f51-43ab-a93d-844b70c3c3fe
BTRFS info (device loop3): last unmount of filesystem e2d09acc-64fd-4f9a-9e8f-2f16c823990a
BTRFS info (device loop3): last unmount of filesystem ff362ba7-6cb8-4933-a438-d5ffb76d174d
BTRFS info (device loop3): last unmount of filesystem f119f538-a996-4813-85f1-4ab15b4072a4
BTRFS info (device loop3): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
BTRFS info (device loop3): last unmount of filesystem 5e8ea66f-a147-4d1e-b78d-38f5df7b5af0
BTRFS info (device loop3): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
BTRFS info (device loop3): last unmount of filesystem 37620c50-81f4-4b87-a7aa-c1f3f7e46aa9
BTRFS info (device loop3): last unmount of filesystem 8361a56c-d022-428c-afda-c1af0ab6b158