rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
(detected by 0, t=10502 jiffies, g=7089, q=61)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294954223-4294943720), jiffies_till_next_fqs=1, root ->qsmask 0x0
kworker/0:6 R running task 26680 2798 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:1517 [inline]
__hrtimer_run_queues+0x403/0x840 kernel/time/hrtimer.c:1579
hrtimer_interrupt+0x38c/0xda0 kernel/time/hrtimer.c:1641
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:__sanitizer_cov_trace_pc+0x48/0x50 kernel/kcov.c:197
Code: 80 13 00 00 83 fa 02 75 21 48 8b 91 88 13 00 00 48 8b 32 48 8d 7e 01 8b 89 84 13 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89 3a 0f 1f 80 00 00 00 00 4c 8b 04 24 65 48 8b 04 25 c0 1d 02 00 65
RSP: 0018:ffffc90007fef320 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffffffff814897d3 RBX: 0000000000000000 RCX: ffff88809f7c8440
RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00023de940
RBP: ffffc90007fef348 R08: dffffc0000000000 R09: fffffbfff124248a
R10: fffffbfff124248a R11: 0000000000000000 R12: dffffc0000000000
R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff888093a33978
free_thread_stack+0x168/0x590 kernel/fork.c:280
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_irq+0xc1/0x140 kernel/sched/core.c:4338
retint_kernel+0x1b/0x2b
RIP: 0010:ipvlan_addr6_validator_event+0x180/0x1a0 drivers/net/ipvlan/ipvlan_main.c:902
Code: 31 db eb 26 e8 81 8b ac fc 31 db eb 1d e8 78 8b ac fc bb 01 00 00 00 eb 11 e8 6c 8b ac fc eb 0a e8 65 8b ac fc bb 63 80 00 00 <89> d8 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc
RSP: 0018:ffffc90007fef5a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff84ca32f6 RBX: 0000000000000000 RCX: ffff88809f7c8440
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff8964f100
RBP: ffffc90007fef5d0 R08: ffffffff81519c2f R09: fffffbfff12b1920
R10: fffffbfff12b1920 R11: 0000000000000000 R12: ffff8880a81a8000
R13: ffff8880a81a8b80 R14: dffffc0000000000 R15: ffffc90007fef730
notifier_call_chain kernel/notifier.c:83 [inline]
__blocking_notifier_call_chain+0x191/0x260 kernel/notifier.c:284
blocking_notifier_call_chain+0x2d/0x40 kernel/notifier.c:295
inet6addr_validator_notifier_call_chain+0x24/0x30 net/ipv6/addrconf_core.c:128
ipv6_add_addr+0x317/0x16d0 net/ipv6/addrconf.c:1075
addrconf_add_linklocal+0x2c4/0xa40 net/ipv6/addrconf.c:3190
addrconf_addr_gen+0x35d/0xc50 net/ipv6/addrconf.c:3317
addrconf_dev_config+0x1c9/0x280 net/ipv6/addrconf.c:3360
addrconf_notify+0xc8d/0x3c90 net/ipv6/addrconf.c:3595
notifier_call_chain kernel/notifier.c:83 [inline]
__raw_notifier_call_chain kernel/notifier.c:361 [inline]
raw_notifier_call_chain+0xec/0x190 kernel/notifier.c:368
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 10549 jiffies! g7089 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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