BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 UID: 0 PID: 45 Comm: kworker/u8:3 Not tainted 6.15.0-rc5-syzkaller-gc32f8dc5aaf9 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: xfs_iwalk-10512 xfs_pwork_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 class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:557 [inline] try_to_wake_up+0x68/0xdf0 kernel/sched/core.c:4212 wake_up_process+0x18/0x24 kernel/sched/core.c:4461 kick_pool+0x3e0/0x58c kernel/workqueue.c:1279 __queue_work+0xde4/0x1230 kernel/workqueue.c:2342 queue_work_on+0xdc/0x18c kernel/workqueue.c:2392 queue_work include/linux/workqueue.h:662 [inline] loop_queue_work drivers/block/loop.c:834 [inline] loop_queue_rq+0x944/0xaa8 drivers/block/loop.c:1834 __blk_mq_issue_directly block/blk-mq.c:2691 [inline] blk_mq_request_issue_directly+0x2c0/0x560 block/blk-mq.c:2778 blk_mq_plug_issue_direct+0x254/0x558 block/blk-mq.c:2799 blk_mq_flush_plug_list+0x638/0x1278 block/blk-mq.c:2910 __blk_flush_plug+0x330/0x408 block/blk-core.c:1220 blk_finish_plug+0x68/0x90 block/blk-core.c:1247 xfs_buf_submit_bio fs/xfs/xfs_buf.c:1395 [inline] xfs_buf_submit+0x7dc/0xbe4 fs/xfs/xfs_buf.c:1501 _xfs_buf_read fs/xfs/xfs_buf.c:645 [inline] xfs_buf_read_map+0x314/0x9e8 fs/xfs/xfs_buf.c:712 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_alloc_read_agfl+0x198/0x35c fs/xfs/libxfs/xfs_alloc.c:885 xfs_alloc_fix_freelist+0xc18/0x1004 fs/xfs/libxfs/xfs_alloc.c:2961 xfs_alloc_vextent_prepare_ag+0xd4/0x6ac fs/xfs/libxfs/xfs_alloc.c:3541 xfs_alloc_vextent_iterate_ags+0x130/0x9d4 fs/xfs/libxfs/xfs_alloc.c:3725 xfs_alloc_vextent_start_ag+0x2ec/0x78c fs/xfs/libxfs/xfs_alloc.c:3814 xfs_bmap_btalloc_best_length fs/xfs/libxfs/xfs_bmap.c:3622 [inline] xfs_bmap_btalloc fs/xfs/libxfs/xfs_bmap.c:3667 [inline] xfs_bmapi_allocate+0x1220/0x2450 fs/xfs/libxfs/xfs_bmap.c:3942 xfs_bmapi_write+0x698/0xfb8 fs/xfs/libxfs/xfs_bmap.c:4271 xfs_dquot_disk_alloc+0x41c/0x964 fs/xfs/xfs_dquot.c:381 xfs_qm_dqread+0x150/0x5f4 fs/xfs/xfs_dquot.c:720 xfs_qm_dqget+0x1d0/0x584 fs/xfs/xfs_dquot.c:932 xfs_qm_quotacheck_dqadjust+0xc4/0x558 fs/xfs/xfs_qm.c:1333 xfs_qm_dqusage_adjust+0x428/0x5b0 fs/xfs/xfs_qm.c:1459 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+0x7e8/0x156c 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