BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 5577 Comm: kworker/u4:20 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Workqueue: btrfs-qgroup-rescan 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+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 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+0x1b40/0x6544 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x644 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]
 btrfs_block_rsv_size fs/btrfs/block-rsv.h:141 [inline]
 btrfs_use_block_rsv+0x174/0x694 fs/btrfs/block-rsv.c:517
 btrfs_alloc_tree_block+0x150/0x1158 fs/btrfs/extent-tree.c:5030
 btrfs_force_cow_block+0x3a0/0x187c fs/btrfs/ctree.c:450
 btrfs_cow_block+0x2d0/0x710 fs/btrfs/ctree.c:623
 btrfs_search_slot+0xa54/0x2364 fs/btrfs/ctree.c:2087
 btrfs_update_root+0xe4/0xa58 fs/btrfs/root-tree.c:132
 commit_fs_roots+0x430/0x664 fs/btrfs/transaction.c:1464
 btrfs_commit_transaction+0xff4/0x29f0 fs/btrfs/transaction.c:2404
 btrfs_qgroup_rescan_worker+0x1444/0x14b8 fs/btrfs/qgroup.c:3418
 btrfs_work_helper+0x328/0xce4 fs/btrfs/async-thread.c:280
 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292
 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
BTRFS info (device loop4): qgroup scan completed (inconsistency flag cleared)