BTRFS info (device loop1): last unmount of filesystem 395ef67a-297e-477c-816d-cd80a5b93e5d
BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 PID: 6839 Comm: syz-executor Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:114
 dump_stack+0x1c/0x28 lib/dump_stack.c:123
 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+0x240/0x728 kernel/locking/lockdep.c:5754
 touch_wq_lockdep_map+0x98/0x118 kernel/workqueue.c:3895
 __flush_workqueue+0x118/0x1174 kernel/workqueue.c:3937
 drain_workqueue+0xb8/0x32c kernel/workqueue.c:4101
 destroy_workqueue+0xb8/0xdc0 kernel/workqueue.c:5817
 btrfs_destroy_workqueue+0x48/0x308 fs/btrfs/async-thread.c:360
 btrfs_stop_all_workers+0x1a0/0x240 fs/btrfs/disk-io.c:1801
 close_ctree+0x57c/0xb20 fs/btrfs/disk-io.c:4365
 btrfs_put_super+0x70/0x80 fs/btrfs/super.c:73
 generic_shutdown_super+0x128/0x2b8 fs/super.c:642
 kill_anon_super+0x4c/0x7c fs/super.c:1226
 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2096
 deactivate_locked_super+0xc4/0x12c fs/super.c:473
 deactivate_super+0xe0/0x100 fs/super.c:506
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1267
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1274
 task_work_run+0x230/0x2e0 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
XFS (loop1): Unmounting Filesystem bfdc47fc-10d8-4eed-a562-11a831b3f791