On Mon, Jul 29, 2013 at 11:09:51AM +0200, Stefan Pietsch wrote:
> On 26.07.2013 20:39, Gleb Natapov wrote:
> > On Fri, Jul 26, 2013 at 08:25:19PM +0200, Stefan Pietsch wrote:
> >> Hi all,
> >>
> >> starting a virtual machine (Debian sid) with KVM on my host running
> >> kernel 3.10.1 (Debian 3.10-1-686-pae) produces these messages:
> >>
> > Are those messages printed by a host or a guest?
>
> The host shows the messages.
>
> >> [ 765.522920] Uhhuh. NMI received for unknown reason 31 on CPU 0.
> >> [ 765.522927] Do you have a strange power saving mode enabled?
> >> [ 765.522930] Dazed and confused, but trying to continue
> >> [ 770.487732] Uhhuh. NMI received for unknown reason 21 on CPU 0.
> >> [ 770.487740] Do you have a strange power saving mode enabled?
> >> [ 770.487742] Dazed and confused, but trying to continue
> >> [ 846.340966] Uhhuh. NMI received for unknown reason 31 on CPU 1.
> >> [ 846.340973] Do you have a strange power saving mode enabled?
> >> [ 846.340976] Dazed and confused, but trying to continue
> >> [ 847.563023] Uhhuh. NMI received for unknown reason 31 on CPU 0.
> >> [ 847.563029] Do you have a strange power saving mode enabled?
> >> [ 847.563032] Dazed and confused, but trying to continue
>
> Is it safe to ignore them?
>
They should not happen. What is the last kernel version you tried that
does not produce them? Can you verify that they do not happen without
guest running? What is the qemu command line you are using to start the
guest and what "cat /proc/cpuinfo" looks like in the guest?
--
Gleb.
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