BTRFS info (device loop1): qgroup scan completed (inconsistency flag cleared) BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 1 UID: 0 PID: 4469 Comm: kworker/u8:11 Not tainted 6.16.0-rc5-syzkaller-gec4801305969 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: btrfs-qgroup-rescan btrfs_work_helper 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 local_lock_acquire+0x4c/0x19c include/linux/local_lock_internal.h:38 __folio_batch_add_and_move+0x23c/0x630 mm/swap.c:-1 folio_add_lru+0xc4/0x154 mm/swap.c:505 filemap_add_folio+0x188/0x298 mm/filemap.c:985 attach_eb_folio_to_filemap fs/btrfs/extent_io.c:3161 [inline] alloc_extent_buffer+0x474/0x1b10 fs/btrfs/extent_io.c:3291 btrfs_find_create_tree_block+0x3c/0x50 fs/btrfs/disk-io.c:606 btrfs_init_new_buffer fs/btrfs/extent-tree.c:5057 [inline] btrfs_alloc_tree_block+0x1cc/0xeb0 fs/btrfs/extent-tree.c:5170 btrfs_force_cow_block+0x408/0x1bb8 fs/btrfs/ctree.c:506 btrfs_cow_block+0x3f8/0x838 fs/btrfs/ctree.c:688 btrfs_search_slot+0x9c0/0x221c fs/btrfs/ctree.c:2088 update_qgroup_info_item fs/btrfs/qgroup.c:883 [inline] btrfs_run_qgroups+0x314/0x7cc fs/btrfs/qgroup.c:3134 commit_cowonly_roots+0x1b4/0x6fc fs/btrfs/transaction.c:1354 btrfs_commit_transaction+0x10bc/0x2b44 fs/btrfs/transaction.c:2457 btrfs_qgroup_rescan_worker+0x1164/0x150c fs/btrfs/qgroup.c:3852 btrfs_work_helper+0x380/0xca8 fs/btrfs/async-thread.c:312 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3402 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:843 BTRFS info (device loop3): qgroup scan completed (inconsistency flag cleared) BTRFS warning (device loop1): checksum verify failed on logical 22036480 mirror 1 wanted 0x23e101be1e001a29 found 0x98e2f59226e63d74 level 0 BTRFS info (device loop6): qgroup scan completed (inconsistency flag cleared) BTRFS warning (device loop6): checksum verify failed on logical 30457856 mirror 1 wanted 0x402e75f1de9ccfe6 found 0x64dad595b87aeca8 level 0