BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 1 UID: 0 PID: 17757 Comm: syz-executor Not tainted 6.12.0-rc3-syzkaller-00087-gc964ced77262 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:319 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:326 __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 register_lock_class+0x56c/0x6b4 kernel/locking/lockdep.c:1328 __lock_acquire+0x18c/0x77c8 kernel/locking/lockdep.c:5077 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825 touch_wq_lockdep_map+0xa8/0x164 kernel/workqueue.c:3880 __flush_workqueue+0x118/0x1174 kernel/workqueue.c:3922 drain_workqueue+0xb8/0x32c kernel/workqueue.c:4086 destroy_workqueue+0xb8/0xdc0 kernel/workqueue.c:5830 btrfs_stop_all_workers+0xd8/0x240 fs/btrfs/disk-io.c:1785 close_ctree+0x598/0xb3c fs/btrfs/disk-io.c:4362 btrfs_put_super+0x70/0x80 fs/btrfs/super.c:75 generic_shutdown_super+0x12c/0x2bc fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1237 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2121 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380 task_work_run+0x230/0x2e0 kernel/task_work.c:228 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 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 BTRFS info (device loop0 state MC): last unmount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6