hrtimer: interrupt took 21838513 ns
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5810/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=9917, q=944 ncpus=2)