rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-... } 2651 jiffies s: 9777 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Task dump for CPU 0:
task:ksoftirqd/0     state:R  running task     stack:24504 pid:   15 ppid:     2 flags:0x00004008
Call Trace:
 <TASK>
 </TASK>