BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 UID: 0 PID: 42 Comm: kworker/u8:3 Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: xfs_iwalk-9989 xfs_pwork_work 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 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:162 down+0x3c/0xe8 kernel/locking/semaphore.c:96 xfs_buf_lock+0x180/0x5ac fs/xfs/xfs_buf.c:996 xfs_buf_find_lock+0x48/0x4f4 fs/xfs/xfs_buf.c:422 xfs_buf_lookup fs/xfs/xfs_buf.c:475 [inline] xfs_buf_get_map+0xe90/0x1750 fs/xfs/xfs_buf.c:597 xfs_buf_read_map+0x90/0x9e8 fs/xfs/xfs_buf.c:702 xfs_trans_read_buf_map+0x1bc/0x964 fs/xfs/xfs_trans_buf.c:304 xfs_trans_read_buf fs/xfs/xfs_trans.h:212 [inline] xfs_dquot_read_buf fs/xfs/xfs_dquot.c:1286 [inline] xfs_dquot_attach_buf+0x1c4/0x3ac fs/xfs/xfs_dquot.c:1323 xfs_qm_quotacheck_dqadjust+0xec/0x558 fs/xfs/xfs_qm.c:1322 xfs_qm_dqusage_adjust+0x480/0x5b0 fs/xfs/xfs_qm.c:1445 xfs_iwalk_ag_recs+0x42c/0x7e0 fs/xfs/xfs_iwalk.c:209 xfs_iwalk_run_callbacks+0x1c0/0x3f0 fs/xfs/xfs_iwalk.c:370 xfs_iwalk_ag+0x6ac/0x82c fs/xfs/xfs_iwalk.c:476 xfs_iwalk_ag_work+0xfc/0x1a8 fs/xfs/xfs_iwalk.c:625 xfs_pwork_work+0x80/0x1a4 fs/xfs/xfs_pwork.c:47 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:844