From: "Joachim Deguara" <joachim.deguara@amd.com>
Organization: AMD
To: rct@gherkin.frus.com
Subject: Re: [BUG] (regression) AMD k6-III/450 won't boot w/2.6.22-rc1
Date: Fri, 18 May 2007 16:38:27 +0200
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cc: "Andi Kleen" <ak@suse.de>, "Chuck Ebbert" <cebbert@redhat.com>,
       "Jan Engelhardt" <jengelh@linux01.gwdg.de>,
       "Randy Dunlap" <randy.dunlap@oracle.com>, linux-kernel@vger.kernel.org
References: <20070517233813.266B6DBA1@gherkin.frus.com>
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On Friday 18 May 2007 01:38:13 rct@gherkin.frus.com wrote:
> Andi Kleen wrote:
> > Hmpf.
> >
> > We cold either use rdmsr_safe or add a family check again or clear it
> > in k6 setup.  I think clearing it in setup is cleanest.
> >
> > Does this patch work?
> >
> > -Andi
> >
> > Clear MCE flag on AMD K6
> >
> > It reports machine check capability in CPUID, but doesn't actually
> > implement all the necessary MSRs of the standard Intel machine
> > check architecture.
> >
> > This fixes a boot failure recently introduced.
> >
> > Signed-off-by: Andi Kleen <ak@suse.de>
>
> ACK.  I reinstalled Joachim's patch (default 2.6.22-rc1 state), and
> added your patch.  Life is good: we have a fix/workaround.

Great, thanks for finding this and Andi for the patch.  I'll talk to our labs 
about dusting off old systems for testing ;)

-Joachim


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