rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P13/1:b..l
	(detected by 1, t=10502 jiffies, g=6457, q=441)
task:kworker/0:1     state:R  running task     stack:    0 pid:   13 ppid:     2 flags:0x00000008
Workqueue: mld mld_ifc_work
Call trace:
 __switch_to+0x2f4/0x558 arch/arm64/kernel/process.c:518
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0xe00/0x1c0c kernel/sched/core.c:6376
 preempt_schedule_irq+0x90/0x214 kernel/sched/core.c:6780
 arm64_preempt_schedule_irq+0x14c/0x21c arch/arm64/kernel/entry-common.c:260
 el1_interrupt+0x40/0x58 arch/arm64/kernel/entry-common.c:463
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:470
 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:522
 rcu_preempt_read_enter kernel/rcu/tree_plugin.h:375 [inline]
 __rcu_read_lock+0x40/0x84 kernel/rcu/tree_plugin.h:398
 rcu_read_lock include/linux/rcupdate.h:737 [inline]
 in6_dev_get+0x20/0x2d4 include/net/addrconf.h:366
 icmp6_dst_alloc+0x40/0x484 net/ipv6/route.c:3262
 mld_sendpack+0x6a8/0x1058 net/ipv6/mcast.c:1815
 mld_send_cr net/ipv6/mcast.c:2127 [inline]
 mld_ifc_work+0x784/0xad8 net/ipv6/mcast.c:2659
 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310
 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457
 kthread+0x374/0x454 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
rcu: rcu_preempt kthread starved for 10498 jiffies! g6457 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:I stack:    0 pid:   15 ppid:     2 flags:0x00000008
Call trace:
 __switch_to+0x2f4/0x558 arch/arm64/kernel/process.c:518
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0xe00/0x1c0c kernel/sched/core.c:6376
 schedule+0x11c/0x1c8 kernel/sched/core.c:6459
 schedule_timeout+0x180/0x2c8 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0x25c/0x11f0 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0xc4/0x2a8 kernel/rcu/tree.c:2145
 kthread+0x374/0x454 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
rcu: Stack dump where RCU GP kthread last ran:
Task dump for CPU 0:
task:ksoftirqd/0     state:R  running task     stack:    0 pid:   14 ppid:     2 flags:0x0000000a
Call trace:
 __switch_to+0x2f4/0x558 arch/arm64/kernel/process.c:518
 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:1780
 handle_softirqs+0x344/0xbf0 kernel/softirq.c:558
 run_ksoftirqd+0x7c/0x2a0 kernel/softirq.c:925
 smpboot_thread_fn+0x4b0/0x920 kernel/smpboot.c:164
 kthread+0x374/0x454 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870