linux-kernel - Re: [049/197] x86, amd: Get multi-node CPU info from NodeId MSR instead of PCI config space

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Message-ID: <20100427065534.GB6248@alberich.amd.com>
Date:	Tue, 27 Apr 2010 08:55:34 +0200
From:	Andreas Herrmann <andreas.herrmann3@....com>
To:	Jiri Kosina <jkosina@...e.cz>
CC:	Greg KH <gregkh@...e.de>, linux-kernel@...r.kernel.org,
	stable@...nel.org, stable-review@...nel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [049/197] x86, amd: Get multi-node CPU info from NodeId MSR
 instead of PCI config space

On Mon, Apr 26, 2010 at 07:10:37PM +0200, Jiri Kosina wrote:
> On Thu, 22 Apr 2010, Greg KH wrote:
> 
> > 2.6.32-stable review patch.  If anyone has any objections, please let us know.

[...]

> 
> This patch is causing kernel panic on boot on Magny Cours CPU here (cpu 
> family 16, model 9, stepping 1).
> 
> Please see screenshot from the paniced kernel on 
> 
>    http://www.jikos.cz/jikos/junk/screenshot.jpg 
> 
> (sorry for bad quality of this screenshot, it was captured only from the 
> IPMI/HTTP console so far, I will try to grab something better tomorrow)
> 
> Also this screenshot probably doesn't show the complete picture -- see the 
> "end trace" marker on the very first line. I will try to have something 
> better tomorrow, but maybe this rings bell for someone right away.

This looks like a BIOS issue to me. Obviously this is a pre-production
test system where an old BIOS is installed. A BIOS update should fix
this issue for you.


Regards,

Andreas

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