BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 PID: 6395 Comm: kworker/u4:10 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
 seqcount_lockdep_reader_access+0x5c/0xd4 include/linux/seqlock.h:102
 read_seqbegin include/linux/seqlock.h:836 [inline]
 zone_span_seqbegin include/linux/memory_hotplug.h:132 [inline]
 page_outside_zone_boundaries mm/page_alloc.c:538 [inline]
 bad_range+0xa8/0x2b4 mm/page_alloc.c:565
 rmqueue mm/page_alloc.c:3060 [inline]
 get_page_from_freelist+0x31b8/0x3364 mm/page_alloc.c:3499
 __alloc_pages+0x220/0x698 mm/page_alloc.c:4768
 alloc_pages+0x4bc/0x7c0
 folio_alloc+0x28/0x6c mm/mempolicy.c:2289
 filemap_alloc_folio+0xc4/0x470 mm/filemap.c:976
 __filemap_get_folio+0x324/0x964 mm/filemap.c:1971
 pagecache_get_page+0x3c/0x13c mm/folio-compat.c:99
 find_or_create_page include/linux/pagemap.h:635 [inline]
 alloc_extent_buffer+0x210/0x1154 fs/btrfs/extent_io.c:3888
 btrfs_find_create_tree_block+0x3c/0x50 fs/btrfs/disk-io.c:836
 btrfs_init_new_buffer fs/btrfs/extent-tree.c:4776 [inline]
 btrfs_alloc_tree_block+0x214/0x1438 fs/btrfs/extent-tree.c:4895
 split_leaf+0x8d0/0x1134 fs/btrfs/ctree.c:3694
 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]
 insert_reserved_file_extent+0x52c/0xa7c fs/btrfs/inode.c:2963
 insert_ordered_extent_file_extent fs/btrfs/inode.c:3061 [inline]
 btrfs_finish_ordered_io+0xa8c/0x17c4 fs/btrfs/inode.c:3171
 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