IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=622037, q=518 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295291384-4295280882), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g622037 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=229820
rcu: rcu_preempt kthread starved for 10502 jiffies! g622037 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R stack:27536 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 __schedule+0x1821/0x5740
 schedule+0x164/0x360
 schedule_timeout+0x158/0x2c0
 rcu_gp_fqs_loop+0x312/0x11d0
 rcu_gp_kthread+0x9e/0x2b0
 kthread+0x389/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 14446 Comm: kworker/1:0 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events drain_vmap_area_work
RIP: 0010:rcu_is_watching+0x5a/0xb0
Code: f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 6c 7a 86 00 48 c7 c3 d8 f9 3a 93 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 <84> c0 75 34 8b 03 65 ff 0d 79 e1 8e 11 74 11 83 e0 04 c1 e8 02 5b
RSP: 0018:ffffc90000a08cf0 EFLAGS: 00000802
RAX: 0000000000000000 RBX: ffff88823c6339d8 RCX: 0000000080010001
RDX: ffff88816df53b00 RSI: ffffffff8c28cb40 RDI: ffffffff8c28cb00
RBP: 0000000000000001 R08: ffff88819a94319f R09: 1ffff11033528633
R10: dffffc0000000000 R11: ffffed1033528634 R12: ffff88817271d000
R13: ffff88819a943000 R14: ffffffff8e26f798 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8882a9284000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ea21ff8 CR3: 000000017937c000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 advance_sched+0xa56/0xc20
 __hrtimer_run_queues+0x3c0/0xa20
 hrtimer_interrupt+0x44b/0x950
 __sysvec_apic_timer_interrupt+0x102/0x430
 sysvec_apic_timer_interrupt+0xa1/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:unwind_next_frame+0x484/0x2550
Code: d2 84 c0 48 0f 45 d1 48 89 15 c8 2b c9 11 48 85 d2 0f 84 3b 02 00 00 4c 8d 62 04 4c 8d 6a 05 4c 89 e0 48 c1 e8 03 0f b6 04 28 <84> c0 0f 85 c2 19 00 00 4c 89 e8 48 c1 e8 03 0f b6 04 28 84 c0 0f
RSP: 0018:ffffc90020b4f358 EFLAGS: 00000a03
RAX: 0000000000000000 RBX: ffffffff904a6f58 RCX: ffffffff904a6f5c
RDX: ffffffff90c6c1f2 RSI: ffffffff90c6c1f2 RDI: ffffffff8c28cb00
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffffff8e95cce0
R10: ffffc90020b4f478 R11: ffffffff81b0f070 R12: ffffffff90c6c1f6
R13: ffffffff90c6c1f7 R14: ffffc90020b4f428 R15: ffffffff904a6f58
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 save_stack+0x122/0x230
 __reset_page_owner+0x71/0x1f0
 __free_frozen_pages+0xc2a/0xd20
 kasan_depopulate_vmalloc_pte+0x6d/0x90
 __apply_to_page_range+0xbdc/0x1420
 __kasan_release_vmalloc+0xa2/0xd0
 purge_vmap_node+0x220/0x960
 __purge_vmap_area_lazy+0x779/0xb40
 drain_vmap_area_work+0x27/0x40
 process_scheduled_works+0xb5d/0x1860
 worker_thread+0xa53/0xfc0
 kthread+0x389/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
