BTRFS info (device loop4): last unmount of filesystem eebafe68-4d1f-4ece-86e3-c91565ef068d
BUG: MAX_LOCKDEP_KEYS too low!
turning off the locking correctness validator.
CPU: 0 PID: 5085 Comm: syz-executor.4 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
 drain_workqueue+0xc9/0x390 kernel/workqueue.c:3311
 destroy_workqueue+0xbe/0xc50 kernel/workqueue.c:4793
 btrfs_stop_all_workers+0xf4/0x2a0 fs/btrfs/disk-io.c:1789
 close_ctree+0x664/0xd40 fs/btrfs/disk-io.c:4368
 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: 0033:0x7fce29a7f0d7
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:00007ffea16d9a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fce29a7f0d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffea16d9af0
RBP: 00007ffea16d9af0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffea16dabb0
R13: 00007fce29ac93b9 R14: 00000000001f869b R15: 0000000000000006
 </TASK>
BTRFS info (device loop4): last unmount of filesystem 5565aaf5-08bb-48ff-93cd-ed88b47f7b4c
BTRFS info (device loop4): last unmount of filesystem e1241a22-7ff2-44f8-b6cd-5d2ff0101304
BTRFS info (device loop4): last unmount of filesystem d552757d-9c39-40e3-95f0-16d819589928
BTRFS info (device loop4): last unmount of filesystem 9bfd78c2-d66a-49b1-95ff-a4814cdda651
BTRFS info (device loop4): last unmount of filesystem 5b591bab-7c62-4651-a73a-4209f1bdb284
BTRFS info (device loop4): last unmount of filesystem d552757d-9c39-40e3-95f0-16d819589928
BTRFS info (device loop4): last unmount of filesystem d552757d-9c39-40e3-95f0-16d819589928
BTRFS info (device loop4): last unmount of filesystem 1e4a5063-6606-430b-895b-54315c090c94
BTRFS info (device loop4): last unmount of filesystem 903f67f1-8526-4fe0-b82c-addf4de4b1fc
BTRFS info (device loop4): last unmount of filesystem d552757d-9c39-40e3-95f0-16d819589928
BTRFS info (device loop4): last unmount of filesystem d88b7191-0cd5-4ea2-a4b9-2b3501130c24
BTRFS info (device loop4): last unmount of filesystem 0aa6ffec-2ea1-4398-9c40-5e8be98f7c20
BTRFS info (device loop4): last unmount of filesystem 66ebcb2b-62f4-423b-b9ed-46e218f21cde
BTRFS info (device loop4): last unmount of filesystem f2817566-1904-4be8-ab5f-73fff55c3e9d
BTRFS info (device loop4): last unmount of filesystem 2951d016-786a-4148-a91c-8c52c4e988a6
BTRFS info (device loop4): last unmount of filesystem 93c3f530-dbf3-44ca-a989-6f06497730a4
BTRFS info (device loop4): last unmount of filesystem e59c1a93-f46c-42fa-bf65-9e719da010cc
BTRFS info (device loop4): last unmount of filesystem d552757d-9c39-40e3-95f0-16d819589928