rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5245/1:b..l
rcu: 	(detected by 0, t=10503 jiffies, g=13553, q=1552 ncpus=2)
task:kworker/1:3     state:R  running task     stack:26720 pid:5245  tgid:5245  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue:  0x0 (mld)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5298 [inline]
 __schedule+0x15dd/0x52d0 kernel/sched/core.c:6911
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7238
 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:__nr_to_section include/linux/mmzone.h:1976 [inline]
RIP: 0010:__pfn_to_section include/linux/mmzone.h:2114 [inline]
RIP: 0010:lookup_page_ext mm/page_ext.c:255 [inline]
RIP: 0010:page_ext_lookup+0x90/0x180 mm/page_ext.c:513
Code: 74 0c 48 c7 c7 40 17 2e 9a e8 dc d4 f3 ff 48 8b 05 25 ea f1 17 48 85 c0 74 36 4e 8d 34 f0 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 <74> 08 4c 89 f7 e8 b6 d4 f3 ff 4d 8b 36 4d 85 f6 74 1b 48 c1 eb 0f
RSP: 0018:ffffc90002757710 EFLAGS: 00000246
RAX: 1ffff11047ffc600 RBX: 000000000008fd4c RCX: ffff888027cfbd00
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff823c375a R09: ffffffff8e75e5e0
R10: dffffc0000000000 R11: ffffed100b7df788 R12: 000000000008fd4c
R13: dffffc0000000000 R14: ffff88823ffe3000 R15: 0000000000001000
 page_ext_iter_begin include/linux/page_ext.h:133 [inline]
 __page_table_check_zero+0x135/0x3e0 mm/page_table_check.c:139
 page_table_check_free include/linux/page_table_check.h:46 [inline]
 __free_pages_prepare mm/page_alloc.c:1434 [inline]
 __free_frozen_pages+0xc3b/0xdb0 mm/page_alloc.c:2978
 __slab_free+0x263/0x2b0 mm/slub.c:5573
 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:4538 [inline]
 slab_alloc_node mm/slub.c:4866 [inline]
 __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5375
 kmalloc_noprof include/linux/slab.h:950 [inline]
 __kthread_create_on_node+0x115/0x3f0 kernel/kthread.c:483
 kthread_create_on_node+0xeb/0x140 kernel/kthread.c:559
 create_worker+0x2e2/0x7e0 kernel/workqueue.c:2815
 maybe_create_worker kernel/workqueue.c:3075 [inline]
 manage_workers kernel/workqueue.c:3152 [inline]
 worker_thread+0x4d8/0xfc0 kernel/workqueue.c:3415
 kthread+0x388/0x470 kernel/kthread.c:436
 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>