BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 41 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
Workqueue: btrfs-endio-write btrfs_work_helper
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3855 [inline]
 validate_chain kernel/locking/lockdep.c:3876 [inline]
 __lock_acquire+0xf9c/0x30a4 kernel/locking/lockdep.c:5237
 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5868
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:162
 __debug_check_no_obj_freed lib/debugobjects.c:1088 [inline]
 debug_check_no_obj_freed+0x148/0x470 lib/debugobjects.c:1129
 slab_free_hook mm/slub.c:2454 [inline]
 slab_free mm/slub.c:6611 [inline]
 kmem_cache_free+0x128/0x6dc mm/slub.c:6721
 btrfs_free_extent_state+0x184/0x38c fs/btrfs/extent-io-tree.c:182
 merge_prev_state fs/btrfs/extent-io-tree.c:353 [inline]
 merge_state+0x1e0/0x420 fs/btrfs/extent-io-tree.c:386
 insert_state_fast+0x1f4/0x25c fs/btrfs/extent-io-tree.c:486
 set_extent_bit+0x1594/0x1cd0 fs/btrfs/extent-io-tree.c:1103
 btrfs_set_extent_bit+0x54/0x6c fs/btrfs/extent-io-tree.c:1297
 btrfs_init_new_buffer fs/btrfs/extent-tree.c:5126 [inline]
 btrfs_alloc_tree_block+0x754/0xe38 fs/btrfs/extent-tree.c:5175
 btrfs_force_cow_block+0x404/0x2058 fs/btrfs/ctree.c:517
 btrfs_cow_block+0x328/0x940 fs/btrfs/ctree.c:708
 btrfs_search_slot+0x96c/0x223c fs/btrfs/ctree.c:2106
 btrfs_lookup_file_extent+0xd8/0x128 fs/btrfs/file-item.c:265
 btrfs_drop_extents+0x330/0x245c fs/btrfs/file.c:187
 insert_reserved_file_extent+0x254/0x7a4 fs/btrfs/inode.c:2965
 insert_ordered_extent_file_extent fs/btrfs/inode.c:3067 [inline]
 btrfs_finish_one_ordered+0xb7c/0x1b48 fs/btrfs/inode.c:3188
 btrfs_finish_ordered_io+0x120/0x134 fs/btrfs/inode.c:3330
 finish_ordered_fn+0x20/0x30 fs/btrfs/ordered-data.c:347
 btrfs_work_helper+0x380/0xca8 fs/btrfs/async-thread.c:312
 process_one_work+0x7e8/0x155c kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3427
 kthread+0x5fc/0x75c kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844