BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 0 PID: 7921 Comm: kworker/u4:18 Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: btrfs-qgroup-rescan btrfs_work_helper
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 lookup_chain_cache_add kernel/locking/lockdep.c:3816 [inline]
 validate_chain+0xa0d/0x5ab0 kernel/locking/lockdep.c:3837
 __lock_acquire+0x1345/0x1fd0 kernel/locking/lockdep.c:5137
 lock_acquire+0x1e3/0x530 kernel/locking/lockdep.c:5754
 folio_memcg_lock+0x1a5/0x390 mm/memcontrol.c:2180
 filemap_dirty_folio+0x2b/0x360 mm/page-writeback.c:2697
 set_extent_buffer_dirty+0x30d/0x480 fs/btrfs/extent_io.c:3810
 btrfs_force_cow_block+0xf77/0x1b70 fs/btrfs/ctree.c:652
 btrfs_cow_block+0x35e/0xa20 fs/btrfs/ctree.c:741
 btrfs_search_slot+0xbdd/0x30c0 fs/btrfs/ctree.c:2095
 btrfs_search_prev_slot fs/btrfs/free-space-tree.c:140 [inline]
 add_free_space_extent fs/btrfs/free-space-tree.c:910 [inline]
 __add_to_free_space_tree+0x57e/0x14c0 fs/btrfs/free-space-tree.c:1021
 add_to_free_space_tree+0x131/0x2e0 fs/btrfs/free-space-tree.c:1050
 do_free_extent_accounting fs/btrfs/extent-tree.c:3009 [inline]
 __btrfs_free_extent+0x1d0b/0x3910 fs/btrfs/extent-tree.c:3379
 run_delayed_tree_ref fs/btrfs/extent-tree.c:1772 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1799 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:2064 [inline]
 __btrfs_run_delayed_refs+0x130d/0x46c0 fs/btrfs/extent-tree.c:2134
 btrfs_run_delayed_refs+0xe3/0x2c0 fs/btrfs/extent-tree.c:2246
 btrfs_commit_transaction+0xf59/0x3740 fs/btrfs/transaction.c:2456
 btrfs_qgroup_rescan_worker+0x17ac/0x1c60 fs/btrfs/qgroup.c:3614
 btrfs_work_helper+0x37c/0xbe0 fs/btrfs/async-thread.c:315
 process_one_work kernel/workqueue.c:2627 [inline]
 process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2700
 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2781
 kthread+0x2d3/0x370 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
BTRFS info (device loop5): qgroup scan completed (inconsistency flag cleared)