rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5895/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=56453, q=2618 ncpus=2)
task:kworker/0:4     state:R  running task     stack:22648 pid:5895  tgid:5895  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events drain_vmap_area_work
Call Trace:
 <TASK>
 __schedule+0x14bc/0x5000
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x5d8/0x660
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_release+0x2a6/0x3b0
Code: 4d 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 52 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 ba 06 e0 10 <48> 3b 44 24 28 75 75 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3
RSP: 0018:ffffc90005eef250 EFLAGS: 00000206
RAX: 1cd4415aa70a7000 RBX: 0000000000000202 RCX: 1cd4415aa70a7000
RDX: 0000000000000003 RSI: ffffffff8d97916f RDI: ffffffff8bc082e0
RBP: ffff888115ccc628 R08: ffffc90005eef3e7 R09: 0000000000000000
R10: ffffc90005eef3d8 R11: fffff52000bdde7d R12: 0000000000000003
R13: 0000000000000003 R14: ffffffff8df41a20 R15: ffff888115ccba80
 unwind_next_frame+0x1ab1/0x23d0
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 save_stack+0xf5/0x1f0
 __reset_page_owner+0x71/0x1f0
 __free_frozen_pages+0xbc8/0xd30
 kasan_depopulate_vmalloc_pte+0x6d/0x90
 __apply_to_page_range+0xb66/0x13d0
 __kasan_release_vmalloc+0xa2/0xd0
 purge_vmap_node+0x214/0x8d0
 __purge_vmap_area_lazy+0x77a/0xb00
 drain_vmap_area_work+0x27/0x40
 process_scheduled_works+0xad1/0x1770
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x599/0xb30
 ret_from_fork_asm+0x1a/0x30
 </TASK>
sched: DL replenish lagged too much
