[CentOS] guest vms crash host systems

Wed Oct 5 15:23:56 UTC 2011
Negative <negativebinomial at gmail.com>

On Wed, Oct 5, 2011 at 11:15 AM, <m.roth at 5-cent.us> wrote:

> Negative wrote:
> > On Wed, Oct 5, 2011 at 11:00 AM, <m.roth at 5-cent.us> wrote:
> >> Les Mikesell wrote:
> >> > On Wed, Oct 5, 2011 at 8:17 AM, Negative <negativebinomial at gmail.com>
> >> > wrote:
> >> <snip>
> >> >> So now I've found I can run X without problems and I can run qemu-kvm
> >> >> without problems, but I cannot run both at the same time.
> >> >
> >> > 'X' should be split cleanly into client and server programs where in
> >> > X-speak  the server serves the display and keyboard and programs are
> >> > the clients.   An X client program should not be touching any hardware
> >> > directly.  But, virtualization stuff might try to cheat.   If you
> >> > don't need the local console, you might try loading VMware ESXi first,
> >> > then run all your other OS's as guests under that - you do need a
> >> > windows box to run as the console when making changes or installing
> >> > things, though.
> >>
> >> Actually, if you do that, you can log into ESX1 - it's actually a
> >> modified RHEL 3, I think. It's the remote admin GUI that you need
> >> WinDoze for.
> >>
> > VMware's a possibility. Would I need to remove the kvm package?  Do I
> have
> > to keep libvirtd off?
>
> You could.
> >
> > I still wonder what is causing this. I couldn't find any mention of a
> > similar problem, including on my desktop in my office, where I have a
> very
> > similar setup, with four kvm guests, two Fedora, one Centos 6 and one
> > Windows XP.
>
> It keeps coming back to sounding like a hardware problem, maybe the video
> card.
>
>       mark
>
>
That was my first thought. I've had the same behavior with two video cards
-- an ATI and an nvidia.

Could it be that the kvm-amd module causes problems? It is loaded along with
the kvm-intel and kvm. .