Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17

From: Peter Zijlstra
Date: Sun Mar 27 2016 - 16:54:56 EST

On Mon, Mar 21, 2016 at 09:22:30AM -0700, Jacob Pan wrote:
> > > We're seeing a similar stall (~60 seconds) on an x86 development
> > > system here. Any luck tracking down the cause of this? If not, any
> > > suggestions for traces that might be helpful?

> +Reinette, she has the system that can reproduce the issue. I
> believe she is having some other problems with it at the moment. But
> the .config should be available. Version is v4.5.

Does that system have MONITOR/MWAIT errata?