rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5747/1:b..l
rcu: 	(detected by 0, t=10503 jiffies, g=37741, q=1134131 ncpus=2)
task:kworker/1:4     state:R  running task     stack:24760 pid:5747  tgid:5747  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events key_garbage_collector
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x17b4/0x5680 kernel/sched/core.c:7189
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:547 [inline]
 irqentry_exit+0x14f/0x730 kernel/entry/common.c:164
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:trace_lock_release include/trace/events/lock.h:69 [inline]
RIP: 0010:lock_release+0x4d/0x3c0 kernel/locking/lockdep.c:5879
Code: 24 28 0f 1f 44 00 00 65 8b 05 23 21 97 11 83 f8 08 0f 83 56 02 00 00 89 c0 48 0f a3 05 cc c8 8e 0e 73 0d e8 45 f7 08 00 84 c0 <0f> 84 94 02 00 00 83 3d 86 fb 8e 0e 00 0f 84 1c 02 00 00 65 8b 05
RSP: 0018:ffffc90003c87270 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff90d3a001 RCX: 0000000080000001
RDX: ffffc90003c87301 RSI: ffffffff8c28ac40 RDI: ffffffff8c28ac00
RBP: dffffc0000000000 R08: ffffc90003c87648 R09: ffffc90003c873f8
R10: dffffc0000000000 R11: fffff52000790e81 R12: ffffc90003c87658
R13: ffffffff8176f256 R14: ffffffff8e95cd60 R15: ffffffff8176f256
 rcu_lock_release include/linux/rcupdate.h:310 [inline]
 rcu_read_unlock include/linux/rcupdate.h:869 [inline]
 class_rcu_destructor include/linux/rcupdate.h:1181 [inline]
 unwind_next_frame+0x1bba/0x2550 arch/x86/kernel/unwind_orc.c:709
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 save_stack+0x122/0x230 mm/page_owner.c:165
 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1402 [inline]
 __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943
 __slab_free+0x274/0x2c0 mm/slub.c:5612
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4569 [inline]
 slab_alloc_node mm/slub.c:4898 [inline]
 __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5414
 kmalloc_noprof include/linux/slab.h:950 [inline]
 kzalloc_noprof include/linux/slab.h:1188 [inline]
 assoc_array_gc+0x3bf/0x16d0 lib/assoc_array.c:1505
 keyring_gc+0x256/0x2b0 security/keys/keyring.c:1743
 key_garbage_collector+0x4fc/0xa50 security/keys/gc.c:358
 process_one_work kernel/workqueue.c:3302 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>