BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 PID: 7272 Comm: kworker/u4:27 Not tainted 6.1.133-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
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/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b88/0x7680 kernel/locking/lockdep.c:5049
 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 __set_extent_bit+0x1dc/0x1650 fs/btrfs/extent-io-tree.c:982
 set_extent_bit+0x58/0x70 fs/btrfs/extent-io-tree.c:1171
 btrfs_init_new_buffer fs/btrfs/extent-tree.c:-1 [inline]
 btrfs_alloc_tree_block+0x9ec/0x1478 fs/btrfs/extent-tree.c:5022
 split_leaf+0x8d0/0x1134 fs/btrfs/ctree.c:3667
 search_leaf fs/btrfs/ctree.c:1925 [inline]
 btrfs_search_slot+0x21c4/0x2928 fs/btrfs/ctree.c:2116
 btrfs_insert_empty_items+0xa4/0x178 fs/btrfs/ctree.c:4178
 btrfs_insert_empty_item fs/btrfs/ctree.h:3137 [inline]
 alloc_reserved_tree_block fs/btrfs/extent-tree.c:4791 [inline]
 run_delayed_tree_ref fs/btrfs/extent-tree.c:1676 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1705 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:1954 [inline]
 __btrfs_run_delayed_refs+0x1040/0x3a90 fs/btrfs/extent-tree.c:2017
 btrfs_run_delayed_refs+0x13c/0x4c0 fs/btrfs/extent-tree.c:2148
 flush_space+0x854/0xdb8 fs/btrfs/space-info.c:744
 btrfs_async_reclaim_metadata_space+0x260/0x30c fs/btrfs/space-info.c:1080
 process_one_work+0x804/0x1484 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