syzbot

BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted 6.13.0-rc2-syzkaller-g2e7aff49b5da #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: btrfs-endio-write btrfs_work_helper
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:484 (C)
 __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
 lookup_chain_cache_add kernel/locking/lockdep.c:3851 [inline]
 validate_chain kernel/locking/lockdep.c:3872 [inline]
 __lock_acquire+0x2070/0x7904 kernel/locking/lockdep.c:5226
 lock_acquire+0x23c/0x724 kernel/locking/lockdep.c:5849
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x48/0x60 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 xa_cmpxchg include/linux/xarray.h:698 [inline]
 xa_reserve include/linux/xarray.h:1082 [inline]
 add_delayed_ref+0x230/0x1ad8 fs/btrfs/delayed-ref.c:1012
 btrfs_add_delayed_tree_ref+0x9c/0x110 fs/btrfs/delayed-ref.c:1077
 btrfs_alloc_tree_block+0xb2c/0x10c8 fs/btrfs/extent-tree.c:5178
 btrfs_force_cow_block+0x428/0x19d4 fs/btrfs/ctree.c:573
 btrfs_cow_block+0x33c/0xad4 fs/btrfs/ctree.c:754
 btrfs_search_slot+0xa74/0x272c fs/btrfs/ctree.c:2156
 btrfs_lookup_csum+0x164/0x500 fs/btrfs/file-item.c:219
 btrfs_csum_file_blocks+0x28c/0x1a2c fs/btrfs/file-item.c:1082
 add_pending_csums fs/btrfs/inode.c:2608 [inline]
 btrfs_finish_one_ordered+0xb5c/0x1910 fs/btrfs/inode.c:3147
 btrfs_finish_ordered_io+0x120/0x134 fs/btrfs/inode.c:3269
 finish_ordered_fn+0x20/0x30 fs/btrfs/ordered-data.c:331
 btrfs_work_helper+0x374/0xd5c fs/btrfs/async-thread.c:314
 process_one_work+0x7a8/0x15cc kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x97c/0xeec kernel/workqueue.c:3391
 kthread+0x288/0x310 kernel/kthread.c:389
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862