Re: (long) kvm and virt-manager not ready for daily usage

[Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>]

On Sat, 2007-09-08 at 22:50 +0200, Farkas Levente wrote:
> Anthony Liguori wrote:
> >> the host see as i've 4 cpu. i've got a change to gives more cpu to the
> >> guest, what's more they starts, but after a few minutes running the
> >> system crash. not just the guest os but the host os crash without any
> >> kind of info, log or any useful info what was the cause of it, but hard
> >> reset helps:-((( first of all it's serious problem, even if it's a known
> >> bug and documented somewhere (but there is not any kind of docs about
> >> neither kvm nor virt-manager/libvirt and what i can find that very
> >> limited), since all of the new hvm cpu (which is required for kvm) has
> >> more core, so the guest can't use the real power of the cpu this means
> >> i've to put a lots of guests with one virtual cpu to the host or
> >> currently can't exploit these cpus.
> > 
> > I'm having difficulty understanding what your problem is.  Are you
> 
> after i reread my sentences it was difficult for me too:-(
> 
> > saying that guest SMP isn't working for you?  The host OS definitely
> > shouldn't crash.  Can you be more specific about what configs you are
> > using?  There was a host oops fixed in kvm-36 so upgrading may help you.
> 
> exactly. i've got 4 phisical core (Intel Core 2 Quad) and i try to give
> 4 cpus for 2 guests and 2 cpus for a third guest and restart libvirtd.
> the result was that even the host system crash without any stack trace
> or kernel panic and only the hard reset helps.

Could you try to reproduce the problem with kvm-36?  Host crash bugs are
very important to fix especially one so easily reproducible.

Regards,

Anthony Liguori


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