BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 PID: 4404 Comm: kworker/u4:5 Not tainted 6.1.23-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
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
 lookup_chain_cache_add kernel/locking/lockdep.c:3779 [inline]
 validate_chain kernel/locking/lockdep.c:3800 [inline]
 __lock_acquire+0x1b8c/0x764c kernel/locking/lockdep.c:5056
 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5669
 local_lock_acquire+0x44/0x1ac include/linux/local_lock_internal.h:29
 folio_add_lru+0x258/0x584 mm/swap.c:532
 filemap_add_folio+0x1c8/0x298 mm/filemap.c:949
 __filemap_get_folio+0x7b0/0xb6c mm/filemap.c:1976
 pagecache_get_page+0x3c/0x16c mm/folio-compat.c:110
 find_or_create_page include/linux/pagemap.h:613 [inline]
 alloc_extent_buffer+0x214/0x114c fs/btrfs/extent_io.c:4613
 btrfs_find_create_tree_block+0x3c/0x50 fs/btrfs/disk-io.c:922
 btrfs_init_new_buffer fs/btrfs/extent-tree.c:4866 [inline]
 btrfs_alloc_tree_block+0x21c/0x1478 fs/btrfs/extent-tree.c:4985
 __btrfs_cow_block+0x3f4/0x16f0 fs/btrfs/ctree.c:433
 btrfs_cow_block+0x354/0x7dc fs/btrfs/ctree.c:588
 btrfs_search_slot+0xb7c/0x2948
 lookup_inline_extent_backref+0x30c/0x1098 fs/btrfs/extent-tree.c:832
 lookup_extent_backref fs/btrfs/extent-tree.c:1054 [inline]
 __btrfs_free_extent+0x254/0x28c8 fs/btrfs/extent-tree.c:2962
 run_delayed_tree_ref fs/btrfs/extent-tree.c:1675 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1699 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:1948 [inline]
 __btrfs_run_delayed_refs+0xe0c/0x3aa4 fs/btrfs/extent-tree.c:2011
 btrfs_run_delayed_refs+0x13c/0x4c0 fs/btrfs/extent-tree.c:2142
 commit_cowonly_roots+0x574/0x740 fs/btrfs/transaction.c:1305
 btrfs_commit_transaction+0x1228/0x2cd4 fs/btrfs/transaction.c:2389
 flush_space+0x870/0xdb8 fs/btrfs/space-info.c:811
 btrfs_async_reclaim_metadata_space+0x260/0x30c fs/btrfs/space-info.c:1084
 process_one_work+0x7ac/0x1404 kernel/workqueue.c:2289
 worker_thread+0x8e4/0xfec kernel/workqueue.c:2436
 kthread+0x24c/0x2d4 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860