BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 0 PID: 31235 Comm: kworker/u4:2 Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Workqueue: btrfs-endio-write btrfs_work_helper
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 lookup_chain_cache_add kernel/locking/lockdep.c:3794 [inline]
 validate_chain kernel/locking/lockdep.c:3815 [inline]
 __lock_acquire+0x1c44/0x7604 kernel/locking/lockdep.c:5088
 lock_acquire+0x23c/0x71c kernel/locking/lockdep.c:5705
 __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:350 [inline]
 btrfs_add_reserved_bytes+0x70/0xd44 fs/btrfs/block-group.c:3583
 find_free_extent+0x3798/0x5238 fs/btrfs/extent-tree.c:4359
 btrfs_reserve_extent+0x35c/0x674 fs/btrfs/extent-tree.c:4477
 btrfs_alloc_tree_block+0x1b0/0x1438 fs/btrfs/extent-tree.c:4890
 __btrfs_cow_block+0x3f4/0x16ec fs/btrfs/ctree.c:541
 btrfs_cow_block+0x354/0x744 fs/btrfs/ctree.c:696
 push_leaf_left+0x2bc/0x4ec fs/btrfs/ctree.c:3429
 split_leaf+0x394/0x1134 fs/btrfs/ctree.c:3620
 search_leaf fs/btrfs/ctree.c:1993 [inline]
 btrfs_search_slot+0x220c/0x2998 fs/btrfs/ctree.c:2180
 btrfs_insert_empty_items+0xa4/0x178 fs/btrfs/ctree.c:4197
 btrfs_insert_empty_item fs/btrfs/ctree.h:633 [inline]
 btrfs_csum_file_blocks+0xbcc/0x1554 fs/btrfs/file-item.c:1251
 add_pending_csums fs/btrfs/inode.c:2655 [inline]
 btrfs_finish_ordered_io+0xc2c/0x17c4 fs/btrfs/inode.c:3186
 finish_ordered_fn+0x20/0x30 fs/btrfs/ordered-data.c:311
 btrfs_work_helper+0x340/0x1504 fs/btrfs/async-thread.c:280
 process_one_work+0x788/0x12d4 kernel/workqueue.c:2405
 worker_thread+0x8e0/0xfe8 kernel/workqueue.c:2552
 kthread+0x288/0x310 kernel/kthread.c:379
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:853
BTRFS warning (device loop1): checksum verify failed on logical 5332992 mirror 1 wanted 0xb929531db417ae5491593d99afe1510df15bdaa63fb6603d26a93ec9245f098d found 0x16161162699c1b667f7da32f09d18988505ab398c67c011cc572becf544837da level 0