BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 22436 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: linux,dummy-virt (DT)
Call trace:
 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x7c/0xb0 lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:3773 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3855 [inline]
 validate_chain kernel/locking/lockdep.c:3876 [inline]
 __lock_acquire+0x15e0/0x1a5c kernel/locking/lockdep.c:5237
 lock_acquire kernel/locking/lockdep.c:5868 [inline]
 lock_acquire+0x3ac/0x440 kernel/locking/lockdep.c:5825
 _raw_spin_lock_nested+0x50/0x6c kernel/locking/spinlock.c:382
 raw_spin_rq_lock_nested kernel/sched/core.c:652 [inline]
 raw_spin_rq_lock kernel/sched/sched.h:1624 [inline]
 rq_lock kernel/sched/sched.h:1968 [inline]
 ttwu_queue kernel/sched/core.c:3976 [inline]
 try_to_wake_up+0x96c/0x1178 kernel/sched/core.c:4302
 wake_up_process+0x18/0x24 kernel/sched/core.c:4434
 kick_pool+0x214/0x600 kernel/workqueue.c:1313
 __queue_work+0xab8/0x13d0 kernel/workqueue.c:2394
 queue_work_on+0xbc/0x100 kernel/workqueue.c:2444
 queue_work include/linux/workqueue.h:698 [inline]
 schedule_work include/linux/workqueue.h:759 [inline]
 kernfs_notify+0x294/0x2e0 fs/kernfs/file.c:1009
 cgroup_file_notify kernel/cgroup/cgroup.c:4681 [inline]
 cgroup_file_notify+0x154/0x240 kernel/cgroup/cgroup.c:4656
 cgroup_update_populated+0x108/0x780 kernel/cgroup/cgroup.c:815
 css_set_update_populated+0xa0/0x124 kernel/cgroup/cgroup.c:837
 css_set_move_task+0x2d0/0x408 kernel/cgroup/cgroup.c:885
 do_cgroup_task_dead kernel/cgroup/cgroup.c:7032 [inline]
 cgroup_task_dead+0xa8/0x5e4 kernel/cgroup/cgroup.c:7096
 finish_task_switch.isra.0+0x684/0x91c kernel/sched/core.c:5283
 context_switch kernel/sched/core.c:5391 [inline]
 __schedule+0xed8/0x3454 kernel/sched/core.c:7189
 preempt_schedule_common kernel/sched/core.c:7370 [inline]
 preempt_schedule+0xf0/0x250 kernel/sched/core.c:7394
 __raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline]
 _raw_spin_unlock+0x6c/0x84 kernel/locking/spinlock.c:190
 spin_unlock include/linux/spinlock.h:390 [inline]
 filemap_map_pages+0xd08/0x1640 mm/filemap.c:3942
 do_fault_around mm/memory.c:5867 [inline]
 do_read_fault mm/memory.c:5900 [inline]
 do_fault+0x74c/0xde0 mm/memory.c:6043
 do_pte_missing mm/memory.c:4566 [inline]
 handle_pte_fault mm/memory.c:6427 [inline]
 __handle_mm_fault+0x728/0x18ec mm/memory.c:6565
 handle_mm_fault+0x1f4/0x8bc mm/memory.c:6734
 do_page_fault+0x480/0xf34 arch/arm64/mm/fault.c:704
 do_translation_fault+0xac/0xec arch/arm64/mm/fault.c:840
 do_mem_abort+0x64/0x1a0 arch/arm64/mm/fault.c:980
 el0_da+0x70/0x284 arch/arm64/kernel/entry-common.c:556
 el0t_64_sync_handler+0xd0/0xe4 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594