BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 8288 Comm: syz.0.278 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 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:3855 [inline] validate_chain kernel/locking/lockdep.c:3876 [inline] __lock_acquire+0xf9c/0x30a4 kernel/locking/lockdep.c:5237 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5868 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:162 debug_object_activate+0x7c/0x460 lib/debugobjects.c:818 debug_work_activate kernel/workqueue.c:668 [inline] insert_work+0x4c/0x2cc kernel/workqueue.c:2181 __queue_work+0xdb0/0x1210 kernel/workqueue.c:2339 queue_work_on+0xdc/0x18c kernel/workqueue.c:2390 queue_work include/linux/workqueue.h:669 [inline] loop_queue_work drivers/block/loop.c:862 [inline] loop_queue_rq+0x944/0xaa8 drivers/block/loop.c:1887 __blk_mq_issue_directly block/blk-mq.c:2695 [inline] blk_mq_request_issue_directly+0x2c0/0x560 block/blk-mq.c:2782 blk_mq_issue_direct+0x254/0x558 block/blk-mq.c:2803 blk_mq_dispatch_queue_requests+0x568/0x674 block/blk-mq.c:2878 blk_mq_flush_plug_list+0x370/0x488 block/blk-mq.c:2961 __blk_flush_plug+0x330/0x408 block/blk-core.c:1220 blk_finish_plug block/blk-core.c:1247 [inline] __submit_bio+0x3f4/0x4d8 block/blk-core.c:649 __submit_bio_noacct_mq block/blk-core.c:722 [inline] submit_bio_noacct_nocheck+0x390/0xaac block/blk-core.c:751 submit_bio_noacct+0xc94/0x177c block/blk-core.c:874 submit_bio+0x3b4/0x550 block/blk-core.c:916 submit_bio_wait+0x104/0x208 block/bio.c:1367 bdev_rw_virt+0x298/0x3dc block/bio.c:1398 hfsplus_submit_bio+0x108/0x130 fs/hfsplus/wrapper.c:63 hfsplus_sync_fs+0x414/0x6d8 fs/hfsplus/super.c:223 sync_filesystem+0x1a0/0x218 fs/sync.c:66 hfsplus_reconfigure+0x6c/0x284 fs/hfsplus/super.c:338 reconfigure_super+0x1d4/0x6f0 fs/super.c:1077 vfs_cmd_reconfigure fs/fsopen.c:262 [inline] vfs_fsconfig_locked+0x140/0x2c8 fs/fsopen.c:291 __do_sys_fsconfig fs/fsopen.c:467 [inline] __se_sys_fsconfig fs/fsopen.c:344 [inline] __arm64_sys_fsconfig+0x654/0x7a0 fs/fsopen.c:344 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596