rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
(detected by 0, t=10502 jiffies, g=6589, q=123)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953848-4294943345), jiffies_till_next_fqs=1, root ->qsmask 0x0
kworker/0:0 R running task 27224 5 2 0x80004008
Workqueue: events linkwatch_event
Call Trace:
sched_show_task+0x40f/0x560 kernel/sched/core.c:5954
print_other_cpu_stall kernel/rcu/tree_stall.h:410 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:538 [inline]
rcu_pending kernel/rcu/tree.c:2827 [inline]
rcu_sched_clock_irq+0x1861/0x1ad0 kernel/rcu/tree.c:2271
update_process_times+0x12d/0x180 kernel/time/timer.c:1726
tick_sched_handle kernel/time/tick-sched.c:167 [inline]
tick_sched_timer+0x263/0x420 kernel/time/tick-sched.c:1310
__run_hrtimer kernel/time/hrtimer.c:1514 [inline]
__hrtimer_run_queues+0x403/0x840 kernel/time/hrtimer.c:1576
hrtimer_interrupt+0x38c/0xda0 kernel/time/hrtimer.c:1638
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline]
smp_apic_timer_interrupt+0x109/0x280 arch/x86/kernel/apic/apic.c:1135
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:35 [inline]
RIP: 0010:memcg_kmem_enabled include/linux/memcontrol.h:1389 [inline]
RIP: 0010:memcg_kmem_uncharge include/linux/memcontrol.h:1401 [inline]
RIP: 0010:free_thread_stack+0x11f/0x590 kernel/fork.c:284
Code: 3e e8 e5 96 ee ff 48 c1 e8 06 48 83 e0 c0 48 bf 00 00 00 00 00 ea ff ff 48 01 c7 be 03 00 00 00 e8 06 a2 60 00 e9 5d 04 00 00 5c 2d 2e 00 48 89 df 31 f6 e8 42 af 6e 00 43 80 3c 2e 00 74 08
RSP: 0018:ffffc90000cbf700 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1100d8c2211 RBX: ffffea0001b18a40 RCX: ffff8880a9d9c140
RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0001b18a40
RBP: ffffc90000cbf738 R08: 000000000003a768 R09: ffffed1014e89f47
R10: ffffed1014e89f47 R11: 0000000000000000 R12: ffff88806c611120
R13: dffffc0000000000 R14: 1ffff1100d8c2224 R15: ffff8880a744fa28
release_task_stack kernel/fork.c:440 [inline]
put_task_stack+0xa3/0x130 kernel/fork.c:451
finish_task_switch+0x3f1/0x550 kernel/sched/core.c:3256
context_switch kernel/sched/core.c:3388 [inline]
__schedule+0x9a8/0xcc0 kernel/sched/core.c:4081
preempt_schedule_common kernel/sched/core.c:4236 [inline]
preempt_schedule+0xdb/0x120 kernel/sched/core.c:4261
___preempt_schedule+0x16/0x18 arch/x86/entry/thunk_64.S:50
vprintk_emit+0x36d/0x3a0 kernel/printk/printk.c:1997
vprintk_default+0x28/0x30 kernel/printk/printk.c:2023
vprintk_func+0x158/0x170 kernel/printk/printk_safe.c:386
printk+0x62/0x8d kernel/printk/printk.c:2056
addrconf_notify+0x2c8d/0x3c90 net/ipv6/addrconf.c:3573
notifier_call_chain kernel/notifier.c:95 [inline]
__raw_notifier_call_chain kernel/notifier.c:396 [inline]
raw_notifier_call_chain+0xec/0x190 kernel/notifier.c:403
call_netdevice_notifiers_info net/core/dev.c:1893 [inline]
netdev_state_change+0x147/0x1f0 net/core/dev.c:1378
linkwatch_do_dev+0x10e/0x160 net/core/link_watch.c:159
__linkwatch_run_queue+0x446/0x730 net/core/link_watch.c:204
linkwatch_event+0x4c/0x60 net/core/link_watch.c:243
process_one_work+0x7ef/0x10d0 kernel/workqueue.c:2264
worker_thread+0xc01/0x1630 kernel/workqueue.c:2410
kthread+0x332/0x350 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
rcu: rcu_preempt kthread starved for 10536 jiffies! g6589 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt R running task 29032 10 2 0x80004000
Call Trace:
context_switch kernel/sched/core.c:3385 [inline]
__schedule+0x9a0/0xcc0 kernel/sched/core.c:4081
schedule+0x181/0x210 kernel/sched/core.c:4155
schedule_timeout+0x14f/0x240 kernel/time/timer.c:1895
rcu_gp_fqs_loop kernel/rcu/tree.c:1661 [inline]
rcu_gp_kthread+0xed8/0x1770 kernel/rcu/tree.c:1821
kthread+0x332/0x350 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352