BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 PID: 5953 Comm: syz-executor.1 Not tainted 6.1.56-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 lookup_chain_cache_add kernel/locking/lockdep.c:3771 [inline] validate_chain kernel/locking/lockdep.c:3792 [inline] __lock_acquire+0x1b8c/0x764c kernel/locking/lockdep.c:5048 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5661 do_write_seqcount_begin_nested include/linux/seqlock.h:515 [inline] do_write_seqcount_begin include/linux/seqlock.h:541 [inline] psi_account_irqtime+0x2a4/0x774 kernel/sched/psi.c:1025 update_rq_clock_task kernel/sched/core.c:704 [inline] update_rq_clock+0x1b8/0x634 kernel/sched/core.c:747 ttwu_queue kernel/sched/core.c:3900 [inline] try_to_wake_up+0x4fc/0xe60 kernel/sched/core.c:4224 wake_up_process+0x18/0x24 kernel/sched/core.c:4358 wake_up_worker kernel/workqueue.c:859 [inline] insert_work+0x2ac/0x384 kernel/workqueue.c:1369 __queue_work+0xd48/0x136c kernel/workqueue.c:1520 __queue_delayed_work kernel/workqueue.c:1668 [inline] mod_delayed_work_on+0x22c/0x368 kernel/workqueue.c:1742 mod_delayed_work include/linux/workqueue.h:534 [inline] wb_queue_work+0x30c/0x670 fs/fs-writeback.c:171 bdi_split_work_to_wbs+0x484/0x7c4 fs/fs-writeback.c:973 sync_inodes_sb+0x218/0x944 fs/fs-writeback.c:2716 sync_filesystem+0x160/0x218 fs/sync.c:64 generic_shutdown_super+0x70/0x328 fs/super.c:474 kill_block_super+0x70/0xdc fs/super.c:1459 deactivate_locked_super+0xac/0x124 fs/super.c:332 deactivate_super+0xf0/0x110 fs/super.c:363 cleanup_mnt+0x394/0x41c fs/namespace.c:1186 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193 task_work_run+0x240/0x2f0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2148/0x3474 arch/arm64/kernel/signal.c:1132 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581