linux-kernel - Re: [ANNOUNCE] Merkey's Kernel Debugger

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Date:	Fri, 8 Aug 2008 14:20:52 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Cliff Wickman <cpw@....com>
Cc:	Andi Kleen <andi@...stfloor.org>, Vivek Goyal <vgoyal@...hat.com>,
	Keith Owens <kaos@....com.au>, Jay Lan <jlan@....com>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Stefan Richter <stefanr@...6.in-berlin.de>,
	Nick Piggin <nickpiggin@...oo.com.au>,
	jmerkey@...fmountaingroup.com,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Josh Boyer <jwboyer@...il.com>, linux-kernel@...r.kernel.org,
	Takenori Nagano <t-nagano@...jp.nec.com>,
	Bernhard Walle <bwalle@...e.de>
Subject: Re: [ANNOUNCE] Merkey's Kernel Debugger

> In a partitioned system [I work for SGI, so I'm talking about an Altix],
> there is memory sharing among multiple single-system images. And if
> one of those partitions were to panic the other partitions need to
> be informed that they cannot address the panic'd partition's memory.
> (Once that partition is rebooted any such access will cause an MCA
> in the accessor.)

There are already existing shutdown hooks. Aren't they good enough
for that?

I would feel uneasy about having arbitary drivers hook into panic().
While I'm sure your code is great there is unfortunately a lot 
of crappy driver code around.

-Andi
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