BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 2108 Comm: kworker/u8:7 Not tainted 6.11.0-rc7-syzkaller-00105-g5f5673607153 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: btrfs-qgroup-rescan btrfs_work_helper Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:319 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:326 __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:119 dump_stack+0x1c/0x28 lib/dump_stack.c:128 lookup_chain_cache_add kernel/locking/lockdep.c:3815 [inline] validate_chain kernel/locking/lockdep.c:3836 [inline] __lock_acquire+0x1fa0/0x779c kernel/locking/lockdep.c:5142 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5759 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:162 __debug_check_no_obj_freed lib/debugobjects.c:979 [inline] debug_check_no_obj_freed+0x14c/0x47c lib/debugobjects.c:1020 slab_free_hook mm/slub.c:2223 [inline] slab_free mm/slub.c:4477 [inline] kmem_cache_free+0x140/0x4d0 mm/slub.c:4552 btrfs_free_path+0x38/0x50 fs/btrfs/ctree.c:202 __btrfs_run_delayed_items+0x250/0x448 fs/btrfs/delayed-inode.c:1197 btrfs_run_delayed_items+0x24/0x34 fs/btrfs/delayed-inode.c:1208 btrfs_commit_transaction+0x10c0/0x2ba4 fs/btrfs/transaction.c:2415 btrfs_qgroup_rescan_worker+0x1370/0x1750 fs/btrfs/qgroup.c:3854 btrfs_work_helper+0x340/0xd28 fs/btrfs/async-thread.c:314 process_one_work+0x79c/0x15b8 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x978/0xec4 kernel/workqueue.c:3389 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared)