BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 UID: 0 PID: 6505 Comm: kworker/1:4 Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: xfs-buf/loop2 xfs_buf_ioend_work Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (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:3856 [inline] validate_chain kernel/locking/lockdep.c:3877 [inline] __lock_acquire+0xf50/0x3058 kernel/locking/lockdep.c:5235 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5866 __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:1088 [inline] debug_check_no_obj_freed+0x148/0x470 lib/debugobjects.c:1129 slab_free_hook mm/slub.c:2311 [inline] slab_free mm/slub.c:4642 [inline] kmem_cache_free+0x124/0x550 mm/slub.c:4744 xfs_buf_item_free+0x54/0x64 fs/xfs/xfs_buf_item.c:966 xfs_buf_item_relse+0x164/0x34c fs/xfs/xfs_buf_item.c:985 xfs_buf_item_done+0x60/0x94 fs/xfs/xfs_buf_item.c:1007 __xfs_buf_ioend+0x22c/0x684 fs/xfs/xfs_buf.c:1202 xfs_buf_ioend_work+0x24/0x54 fs/xfs/xfs_buf.c:1232 process_one_work+0x7e8/0x156c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3400 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847