linux-kernel - Re: KVM warning about uncertified CPU for SMP for AMD model 2, stepping 3

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Message-ID: <alpine.LNX.2.00.1003311644520.24576@pobox.suse.cz>
Date:	Wed, 31 Mar 2010 16:45:09 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Andre Przywara <andre.przywara@....com>
Cc:	Andi Kleen <andi@...stfloor.org>, Ingo Molnar <mingo@...e.hu>,
	Avi Kivity <avi@...hat.com>,
	Marcelo Tosatti <mtosatti@...hat.com>,
	Joerg Roedel <joerg.roedel@....com>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: KVM warning about uncertified CPU for SMP for AMD model 2,
 stepping 3

On Wed, 31 Mar 2010, Andre Przywara wrote:

> > > BTW.: I encourage people to test their KVM guests with "-cpu host" (on
> > > newer
> > > QEMUs) and send me any crash logs.
> > 
> > I just quickly checked ...
> > 
> snip
> > [    0.147235]  [<c0528a80>] init_amd+0x249/0x279
> > [    0.148011]  [<c0527d74>] identify_cpu+0xc2/0x223
> > [    0.149649]  [<c078822d>] identify_boot_cpu+0xa/0x22
> > [    0.152010]  [<c07882c8>] check_bugs+0x8/0xd2
> > [    0.153573]  [<c0781a05>] start_kernel+0x32e/0x3a9
> > 
> > But I admit that this isn't the most up-to-date version, so perhaps it's
> > already fixed ...
> No, that is something new. I dug out the kernel (SLES 11.1?) and booted with
> my script, it crashed on FMS 16/9/0, so I guess this machine was a
> Magny-Cours, right?

Yup, it's cpu family 10h.

> Anyway, many thanks for the report, I will investigate this.

Thanks,

-- 
Jiri Kosina
SUSE Labs, Novell Inc.
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