Re: [PATCH 0/5] kdump: extract log buffer and registers fromvmcore on NMI button pressing

From: Andi Kleen
Date: Fri Jun 04 2010 - 06:15:28 EST


On Fri, Jun 04, 2010 at 11:32:52AM +0200, Vitaly Mayatskikh wrote:
> At Thu, 3 Jun 2010 17:13:47 +0200, Andi Kleen wrote:
>
> > > > NMI would be only needed if the crash kernel is completely
> > > > hosed too.
> > >
> > > That's the case.
> >
> > You're saying it booted but is hosed after boot?
> >
> > That seems like a very obscure case. Is that really common?
>
> As usual: for engineers, who have to deal with it - yes, it is common.

Well it would be better then to find out why that happens and fix it.

Is this related to kexec driver problems?

>
> > > True. But as a last hope, when nothing else helps, it still may be
> > > worth trying :)
> >
> > It will simply not work.
>
> Why?

Because someone else steals all the NMIs.

-Andi
--
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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