BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 1 PID: 5102 Comm: syz-executor.1 Not tainted 6.8.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Call Trace: __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+0x1f2/0x2a0 fs/btrfs/disk-io.c:1796 close_ctree+0x664/0xd40 fs/btrfs/disk-io.c:4368 generic_shutdown_super+0x138/0x2d0 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+0xc6/0x130 fs/super.c:472 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267 task_work_run+0x250/0x310 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: 0033:0x7f36d8e7f0d7 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:00007ffea97d27a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f36d8e7f0d7 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffea97d2860 RBP: 00007ffea97d2860 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffea97d3920 R13: 00007f36d8ec93b9 R14: 00000000001e6c80 R15: 0000000000000005 BTRFS info (device loop1): last unmount of filesystem 7a5a08b3-82aa-478e-ab51-a92217ea7bfd BTRFS info (device loop1): last unmount of filesystem d552757d-9c39-40e3-95f0-16d819589928 BTRFS info (device loop1): last unmount of filesystem 5248976f-ee28-4d43-8c03-7d9166e6aa8e BTRFS info (device loop1): last unmount of filesystem d552757d-9c39-40e3-95f0-16d819589928 BTRFS info (device loop1): last unmount of filesystem c52ad926-c164-4a87-b44c-144102b86fe6 BTRFS info (device loop1): last unmount of filesystem edd760d9-9821-48c2-b0e0-67cfa622a907 BTRFS info (device loop1): last unmount of filesystem 7bccecd8-2aab-4a9e-b712-cbe64156dc45 BTRFS info (device loop1): last unmount of filesystem d552757d-9c39-40e3-95f0-16d819589928 BTRFS info (device loop1): last unmount of filesystem d552757d-9c39-40e3-95f0-16d819589928 BTRFS info (device loop1): last unmount of filesystem d552757d-9c39-40e3-95f0-16d819589928