BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 PID: 6113 Comm: kworker/u4:6 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 folio_memcg_lock+0xd4/0x1d8 mm/memcontrol.c:2152 filemap_dirty_folio+0x38/0x1a8 mm/page-writeback.c:2695 folio_mark_dirty+0x118/0x198 mm/page-writeback.c:2800 set_page_dirty+0x58/0x78 mm/folio-compat.c:57 btrfs_page_set_dirty+0x80/0x19c fs/btrfs/subpage.c:700 set_extent_buffer_dirty+0x34c/0x4b0 fs/btrfs/extent_io.c:4182 btrfs_mark_buffer_dirty+0x154/0x220 fs/btrfs/disk-io.c:4701 __btrfs_cow_block+0xde8/0x16ec fs/btrfs/ctree.c:619 btrfs_cow_block+0x354/0x744 fs/btrfs/ctree.c:696 btrfs_search_slot+0xb8c/0x2998 btrfs_lookup_file_extent+0x124/0x1bc fs/btrfs/file-item.c:270 btrfs_drop_extents+0x35c/0x2c18 fs/btrfs/file.c:250 insert_reserved_file_extent+0x2bc/0xa7c fs/btrfs/inode.c:2954 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 BTRFS warning (device loop3): checksum verify failed on logical 5337088 mirror 1 wanted 0x324c5e2d0cac2dc8f61cbfdfc8cd69d9816061b1498b9e1bff7d10a59610160b found 0xd2ebaab0feb7726b3f77094ba4b8c328ed116006cbe5f63b9f1c0508192c409c level 0