Date: Thu, 7 Aug 2008 22:11:06 +0200
From: Bernhard Walle <bwalle@suse.de>
To: Andi Kleen <andi@firstfloor.org>
Cc: Jay Lan <jlan@sgi.com>, Christoph Lameter <cl@linux-foundation.org>,
       Stefan Richter <stefanr@s5r6.in-berlin.de>,
       Nick Piggin <nickpiggin@yahoo.com.au>, jmerkey@wolfmountaingroup.com,
       Geert Uytterhoeven <geert@linux-m68k.org>,
       Josh Boyer <jwboyer@gmail.com>, linux-kernel@vger.kernel.org,
       Takenori Nagano <t-nagano@ah.jp.nec.com>,
       Vivek Goyal <vgoyal@redhat.com>, Keith Owens <kaos@ocs.com.au>
Subject: Re: [ANNOUNCE] Merkey's Kernel Debugger
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* Andi Kleen <andi@firstfloor.org> [2008-08-07 22:09]:
>
> On Thu, Aug 07, 2008 at 10:07:37PM +0200, Bernhard Walle wrote:
> > * Andi Kleen <andi@firstfloor.org> [2008-08-07 22:06]:
> > >
> > > > To merge KDB or any other RAS tools, you need to deal with kdump. Kdump
> > > > hijack panic() before the die calling chain. For KDB or a RAS tool to
> > > 
> > > Imho kdump should just be fixed to use die chains.
> > 
> > Well, we had that discussion several times. I'm not against it
> > (instead, I would like it), but I don't think that repeating the
> > discussion over and over does help ...
> 
> Just needs some code? 

No, it was rejected with the argument that in panic case, as less code
as possible should be executed before kexec'ing the panic kernel.

See also: http://kerneltrap.org/node/14050 (for example)


Bernhard
-- 
Bernhard Walle, SUSE LINUX Products GmbH, Architecture Development
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