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SubjectRe: [tip:core/rcu] rcu: Add diagnostic check for a possible CPU-hotplug race

* Gautham R Shenoy <ego@in.ibm.com> wrote:

> On Wed, Aug 05, 2009 at 06:26:45PM -0700, Paul E. McKenney wrote:
> > On Mon, Aug 03, 2009 at 05:56:18AM -0700, Paul E. McKenney wrote:
> > > On Mon, Aug 03, 2009 at 09:04:58AM +0200, Ingo Molnar wrote:
> > > >
> > > > i've attached the full serial bootlog with the warning in it. This
> > > > should address your question about what the order of initialization
> > > > is, right?
> > >
> > > It does, thank you! This problem really is happening during boot.
> > >
> > > > Let me know if you still would like me to run your diagnostic patch
> > > > too.
> > >
> > > Now that you mention it, you should probably let me test it a bit first.
> >
> > And here is a tested and debugged version. Diagnostic only, not for
> > inclusion, based on tip/core/rcu as of today (August 5th).
> >
> > Gautham, have you been able to reproduce on your machines?
> > Still cannot here.
>
> I tried on a couple of machines yesterday, but I still couldn't
> reproduce it with Ingo's config.

Paul, should i try your latest diagnostic patch in -tip testing, to
see whether it triggers any new warning?

Ingo


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