BUG: MAX_LOCKDEP_KEYS too low!
turning off the locking correctness validator.
CPU: 0 PID: 19879 Comm: syz-executor.1 Not tainted 6.8.0-rc7-syzkaller-00238-g005f6f34bd47 #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_destroy_workqueue+0x45/0x240 fs/btrfs/async-thread.c:361
 btrfs_stop_all_workers+0x218/0x2a0 fs/btrfs/disk-io.c:1797
 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: 0033:0x7f799407f0d7
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:00007ffe6f9ebc28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f799407f0d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffe6f9ebce0
RBP: 00007ffe6f9ebce0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe6f9ecda0
R13: 00007f79940c93b9 R14: 0000000000268e8b R15: 0000000000000005
 </TASK>
BTRFS info (device loop1): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6
BTRFS info (device loop1): last unmount of filesystem 0b1a1460-fc37-477b-8134-67cd8e4a7bcf
BTRFS info (device loop1): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6
BTRFS info (device loop1): last unmount of filesystem a8f30360-a2e2-4641-bb08-bc74e7cd1719
BTRFS info (device loop1): last unmount of filesystem 7994b566-c824-4f73-b76f-a6d236bafc47
BTRFS info (device loop1): last unmount of filesystem 67a1041e-6ee9-4d60-89ce-82a147c7ba93
BTRFS info (device loop1): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6
BTRFS info (device loop1): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6
BTRFS info (device loop1): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6
BTRFS info (device loop1): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6
BTRFS info (device loop1): last unmount of filesystem dd57ea9e-8b09-4c8b-b748-a7d5a176de4f
BTRFS info (device loop1): last unmount of filesystem df02ba46-8eb0-4efb-9416-cf6e78606f5d