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SubjectRe: [RFC][PATCH] Fix cpu hotplug hang
Sebastien Dugue wrote:
> On Mon, 1 Dec 2008 14:09:07 +0100 Sebastien Dugue <sebastien.dugue@bull.net> wrote:
>
> >
> > here is a patch that fixes a CPU hotplug hang I get on a Power6
> > box. It may not be the only possible fix but it appears to be the
> > cleanest I can think of at the moment.
> >
> > Comments welcomed.
>
> Ingo, Thomas, anybody care to comment on the hang and this possible fix?

FWIW, I was able to recreate this hang with 2.6.28 on a 8-way Power5
system, and Sebastien's patch does appear to fix the problem for my
testcase, which does a few hundred offline/online operations.


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