BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 6465 Comm: syz-executor.5 Not tainted 6.7.0-rc6-syzkaller-00090-gaafe7ad77b91 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 lookup_chain_cache_add kernel/locking/lockdep.c:3816 [inline]
 validate_chain kernel/locking/lockdep.c:3837 [inline]
 __lock_acquire+0x1c58/0x763c kernel/locking/lockdep.c:5137
 lock_acquire+0x23c/0x71c kernel/locking/lockdep.c:5754
 __flush_workqueue+0x14c/0x11c4 kernel/workqueue.c:3140
 drain_workqueue+0xb8/0x32c kernel/workqueue.c:3305
 destroy_workqueue+0xb8/0xdc4 kernel/workqueue.c:4800
 btrfs_destroy_workqueue+0x48/0x2f0 fs/btrfs/async-thread.c:361
 btrfs_stop_all_workers+0x184/0x240 fs/btrfs/disk-io.c:1765
 close_ctree+0x598/0xdec fs/btrfs/disk-io.c:4374
 btrfs_put_super+0x70/0x80 fs/btrfs/super.c:86
 generic_shutdown_super+0x130/0x2b8 fs/super.c:696
 kill_anon_super+0x4c/0x7c fs/super.c:1295
 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2100
 deactivate_locked_super+0xc4/0x144 fs/super.c:484
 deactivate_super+0xe0/0x100 fs/super.c:517
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1256
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1263
 task_work_run+0x230/0x2e0 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x214c/0x393c arch/arm64/kernel/signal.c:1305
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline]
 el0_svc+0x9c/0x158 arch/arm64/kernel/entry-common.c:679
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
BTRFS info (device loop5): last unmount of filesystem 238f6b71-65c8-49ab-9fff-9d879bab1bd9
BTRFS info (device loop5): last unmount of filesystem e417788f-7a09-42b2-9266-8ddc5d5d35d2
BTRFS info (device loop5): last unmount of filesystem e417788f-7a09-42b2-9266-8ddc5d5d35d2