BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 0 PID: 5111 Comm: kworker/u4:10 Not tainted 6.1.63-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
Workqueue: btrfs-endio-write btrfs_work_helper
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 lookup_chain_cache_add kernel/locking/lockdep.c:3771 [inline]
 validate_chain kernel/locking/lockdep.c:3792 [inline]
 __lock_acquire+0x1b8c/0x764c kernel/locking/lockdep.c:5048
 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5661
 _raw_spin_lock_nested+0x5c/0x78 kernel/locking/spinlock.c:378
 raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline]
 raw_spin_rq_lock kernel/sched/sched.h:1354 [inline]
 rq_lock kernel/sched/sched.h:1644 [inline]
 __schedule+0x2c4/0x1c98 kernel/sched/core.c:6475
 preempt_schedule_common+0xf4/0x1e8 kernel/sched/core.c:6727
 preempt_schedule+0x64/0x84 kernel/sched/core.c:6751
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x80/0x84 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:390 [inline]
 btrfs_add_delayed_tree_ref+0x75c/0xe58 fs/btrfs/delayed-ref.c:974
 btrfs_free_tree_block+0x30c/0xb50 fs/btrfs/extent-tree.c:3281
 __btrfs_cow_block+0xcd4/0x1824 fs/btrfs/ctree.c:510
 btrfs_cow_block+0x314/0xaa4 fs/btrfs/ctree.c:605
 btrfs_search_slot+0xb7c/0x2948
 btrfs_lookup_file_extent+0x124/0x1bc fs/btrfs/file-item.c:253
 btrfs_drop_extents+0x35c/0x2c18 fs/btrfs/file.c:243
 insert_reserved_file_extent+0x2bc/0xa7c fs/btrfs/inode.c:3083
 insert_ordered_extent_file_extent fs/btrfs/inode.c:3190 [inline]
 btrfs_finish_ordered_io+0xe14/0x185c fs/btrfs/inode.c:3302
 finish_ordered_fn+0x20/0x30 fs/btrfs/ordered-data.c:280
 btrfs_work_helper+0x31c/0xd98 fs/btrfs/async-thread.c:280
 process_one_work+0x7ac/0x1404 kernel/workqueue.c:2292
 worker_thread+0x8e4/0xfec kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864