BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 8773 Comm: syz-executor Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3858 [inline]
 validate_chain kernel/locking/lockdep.c:3879 [inline]
 __lock_acquire+0xf9c/0x30a4 kernel/locking/lockdep.c:5240
 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5871
 __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]
 free_extent_buffer+0x22c/0x3c8 fs/btrfs/extent_io.c:3497
 btrfs_force_cow_block+0xbfc/0x1bb8 fs/btrfs/ctree.c:557
 btrfs_cow_block+0x3f8/0x838 fs/btrfs/ctree.c:688
 btrfs_search_slot+0x9c0/0x221c fs/btrfs/ctree.c:2088
 btrfs_del_csums+0x204/0x9e4 fs/btrfs/file-item.c:895
 do_free_extent_accounting fs/btrfs/extent-tree.c:2982 [inline]
 __btrfs_free_extent+0x1288/0x2b78 fs/btrfs/extent-tree.c:3370
 run_delayed_data_ref fs/btrfs/extent-tree.c:1597 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1777 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:1970 [inline]
 __btrfs_run_delayed_refs+0x9e0/0x31c8 fs/btrfs/extent-tree.c:2045
 btrfs_run_delayed_refs+0xc4/0x2e8 fs/btrfs/extent-tree.c:2157
 btrfs_commit_transaction+0x200/0x2b44 fs/btrfs/transaction.c:2208
 btrfs_sync_fs+0x504/0x9a4 fs/btrfs/super.c:1036
 sync_filesystem+0x1a0/0x218 fs/sync.c:66
 generic_shutdown_super+0x70/0x2b8 fs/super.c:622
 kill_anon_super+0x4c/0x7c fs/super.c:1282
 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2095
 deactivate_locked_super+0xc4/0x12c fs/super.c:474
 deactivate_super+0xe0/0x100 fs/super.c:507
 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1417
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1424
 task_work_run+0x1dc/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x174/0x1f4 arch/arm64/kernel/entry-common.c:155
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:173 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:182 [inline]
 el0_svc+0xb8/0x180 arch/arm64/kernel/entry-common.c:880
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
BTRFS info (device loop1): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf