linux-kernel - Re: [BUG] (regression) AMD k6-III/450 won't boot w/2.6.22-rc1

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Fri, 18 May 2007 16:38:27 +0200
From:	"Joachim Deguara" <joachim.deguara@....com>
To:	rct@...rkin.frus.com
cc:	"Andi Kleen" <ak@...e.de>, "Chuck Ebbert" <cebbert@...hat.com>,
	"Jan Engelhardt" <jengelh@...ux01.gwdg.de>,
	"Randy Dunlap" <randy.dunlap@...cle.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [BUG] (regression) AMD k6-III/450 won't boot w/2.6.22-rc1

On Friday 18 May 2007 01:38:13 rct@...rkin.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@...e.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


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/