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SubjectRe: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
On Wed, Mar 23, 2016 at 06:25:50PM +0000, Chatre, Reinette wrote:
> Hi Paul,
>
> On 2016-03-23, Paul E. McKenney wrote:
> > Please boot with the following parameters:
> >
> > rcu_tree.rcu_kick_kthreads ftrace
> > trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
> >
> > Or was this run with tracing? If so, less than three hours isn't too bad.
>
> This was with tracing enabled, only missing the crucial
> rcu_tree.rcu_kick_kthreads

Good, then the condition did trigger with tracing enabled! ;-)

Thanx, Paul

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