rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6025/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=109521, q=13863 ncpus=2)
task:kworker/1:8     state:R  running task     stack:21160 pid:6025  tgid:6025  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (rcu_gp)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5295 [inline]
 __schedule+0x1585/0x5340 kernel/sched/core.c:6907
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7234
 irqentry_exit+0x599/0x620 kernel/entry/common.c:239
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x20b/0x2e0 kernel/locking/lockdep.c:5872
Code: e9 30 ff ff ff e8 65 c5 0b 0a f7 c3 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 e1 42 7a 11 48 3b 44 24 30 75 33 fb 48 83 c4 38 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 b1 c3 6e ff cc 48 8d 3d 9e 5b 73
RSP: 0018:ffffc90003007598 EFLAGS: 00000282
RAX: caa3963e4fdcb900 RBX: 0000000000000246 RCX: 0000000000000046
RDX: 00000000582a5d36 RSI: ffffffff8e162dda RDI: ffffffff8c27aa00
RBP: 0000000000000000 R08: ffffffff81767a45 R09: ffffffff8e7602e0
R10: dffffc0000000000 R11: fffff52000600eed R12: 0000000000000002
R13: ffffffff8e7602e0 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 rcu_read_lock include/linux/rcupdate.h:850 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1193 [inline]
 unwind_next_frame+0xc2/0x23c0 arch/x86/kernel/unwind_orc.c:495
 __unwind_start+0x5b8/0x760 arch/x86/kernel/unwind_orc.c:773
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0xe3/0x150 arch/x86/kernel/stacktrace.c:24
 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:1433 [inline]
 __free_frozen_pages+0xc2b/0xdb0 mm/page_alloc.c:2978
 __slab_free+0x263/0x2b0 mm/slub.c:5532
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x97/0x100 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:4501 [inline]
 slab_alloc_node mm/slub.c:4830 [inline]
 __kmalloc_cache_node_noprof+0x391/0x6b0 mm/slub.c:5347
 kmalloc_node_noprof include/linux/slab.h:1089 [inline]
 alloc_worker kernel/workqueue.c:2660 [inline]
 create_worker+0x113/0x7e0 kernel/workqueue.c:2803
 maybe_create_worker kernel/workqueue.c:3075 [inline]
 manage_workers kernel/workqueue.c:3152 [inline]
 worker_thread+0x4d5/0xfc0 kernel/workqueue.c:3414
 kthread+0x388/0x470 kernel/kthread.c:467
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>