From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gleb Natapov <gleb@redhat.com>
Subject: Re: Bug#707257: linux-image-3.8-1-686-pae: KVM crashes with "entry
 failed, hardware error 0x80000021"
Date: Wed, 5 Jun 2013 15:10:24 +0300
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Cc: Ben Hutchings <ben@decadent.org.uk>, kvm@vger.kernel.org,
	707257@bugs.debian.org
To: Stefan Pietsch <stefan.pietsch@lsexperts.de>
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On Wed, Jun 05, 2013 at 01:57:25PM +0200, Stefan Pietsch wrote:
> On 19.05.2013 14:32, Gleb Natapov wrote:
> > On Sun, May 19, 2013 at 02:00:31AM +0100, Ben Hutchings wrote:
> >> Dear KVM maintainers, it appears that there is a gap in x86 emulation,
> >> at least on a 32-bit host.  Stefan found this when running GRML, a live
> >> distribution which can be downloaded from:
> >> <http://download.grml.org/grml32-full_2013.02.iso>.  His original
> >> reported is at <http://bugs.debian.org/707257>.
> >>
> > Can you verify with latest linux.git HEAD? It works for me there on
> > 64bit. There were a lot of problems fixed in this area in 3.9/3.10 time frame,
> > so it would be helpful if you'll test 32bit before I install one myself.
> 
> 
> Kernel version 3.9.4-1 (linux-image-3.9-1-686-pae) made things worse.
> 
> The virtual machine tries to boot the kernel, but stops after a few
> seconds and the kern.log shows:
At what point does it stop?

> 
> kernel: [13851.000412] kvm [7482]: vcpu0 disabled perfctr wrmsr: 0xc1
> data 0xffff
> 
That's harmless.

> 
> virtual machine was started with:
> qemu-system-i386 -machine accel=kvm -m 512 -cdrom grml32-full_2013.02.iso
> 
> qemu-system-x86: 1.5.0+dfsg-3

--
			Gleb.