linux-kernel - Re: [PATCH 0/5] kdump: extract log buffer and registers from vmcore on NMI button pressing

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Message-ID: <87zkzbjg6z.wl%vmayatsk@redhat.com>
Date:	Fri, 04 Jun 2010 11:32:52 +0200
From:	Vitaly Mayatskikh <v.mayatskih@...il.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Vivek Goyal <vgoyal@...hat.com>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Randy Dunlap <rdunlap@...otime.net>
Subject: Re: [PATCH 0/5] kdump: extract log buffer and registers from vmcore	on NMI button pressing

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.

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

Why?
-- 
wbr, Vitaly
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