BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 9003 Comm: kworker/u4:21 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: btrfs-endio-write btrfs_work_helper
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 lookup_chain_cache_add kernel/locking/lockdep.c:3735 [inline]
 validate_chain kernel/locking/lockdep.c:3756 [inline]
 __lock_acquire+0x1b64/0x7638 kernel/locking/lockdep.c:5012
 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0xb0/0x10c kernel/locking/spinlock.c:154
 rcu_note_context_switch+0x2a8/0xfe8 kernel/rcu/tree_plugin.h:322
 __schedule+0x314/0x1e48 kernel/sched/core.c:6270
 preempt_schedule_irq+0x90/0x274 kernel/sched/core.c:6777
 arm64_preempt_schedule_irq+0x174/0x2c4 arch/arm64/kernel/entry-common.c:260
 el1_interrupt+0x40/0x58 arch/arm64/kernel/entry-common.c:463
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:470
 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:522
 rcu_preempt_read_exit kernel/rcu/tree_plugin.h:380 [inline]
 __rcu_read_unlock+0x44/0x13c kernel/rcu/tree_plugin.h:419
 rcu_read_unlock include/linux/rcupdate.h:771 [inline]
 btrfs_root_node+0x3dc/0x404 fs/btrfs/ctree.c:139
 btrfs_read_lock_root_node+0x68/0x344 fs/btrfs/locking.c:276
 btrfs_search_slot_get_root fs/btrfs/ctree.c:1655 [inline]
 btrfs_search_slot+0x3d0/0x24d8 fs/btrfs/ctree.c:1813
 btrfs_insert_empty_items+0x1e4/0x2ac fs/btrfs/ctree.c:4007
 btrfs_insert_empty_item fs/btrfs/ctree.h:2950 [inline]
 insert_reserved_file_extent+0x500/0xa4c fs/btrfs/inode.c:2938
 insert_ordered_extent_file_extent fs/btrfs/inode.c:3032 [inline]
 btrfs_finish_ordered_io+0xc74/0x1660 fs/btrfs/inode.c:3134
 finish_ordered_fn+0x20/0x30 fs/btrfs/inode.c:3257
 btrfs_work_helper+0x348/0x1554 fs/btrfs/async-thread.c:325
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 worker_thread+0x910/0x1034 kernel/workqueue.c:2457
 kthread+0x37c/0x45c kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870