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From: "Chatre, Reinette" <reinette.chatre@intel.com>
To: "paulmck@linux.vnet.ibm.com" <paulmck@linux.vnet.ibm.com>
CC: Jacob Pan <jacob.jun.pan@linux.intel.com>,
        Josh Triplett <josh@joshtriplett.org>, Ross Green <rgkernel@gmail.com>,
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        lkml <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@kernel.org>,
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Subject: RE: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
Thread-Topic: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
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Date: Wed, 23 Mar 2016 18:25:50 +0000
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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

Reinette