Re: [ANNOUNCE] Merkey's Kernel Debugger

From: Bernhard Walle
Date: Thu Aug 07 2008 - 16:11:29 EST


* Andi Kleen <andi@xxxxxxxxxxxxxx> [2008-08-07 22:09]:
>
> On Thu, Aug 07, 2008 at 10:07:37PM +0200, Bernhard Walle wrote:
> > * Andi Kleen <andi@xxxxxxxxxxxxxx> [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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