rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4049 } 4 jiffies s: 2893 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-... } 7 jiffies s: 2977 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Task dump for CPU 1:
task:udevd           state:R  running task     stack:27304 pid: 3009 ppid:     1 flags:0x00000008
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5146 [inline]
 __schedule+0x916/0x2700 kernel/sched/core.c:6458
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6623
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35
 </TASK>
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready