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On Wed, Aug 15, 2012 at 9:58 AM, Thomas Vachon <vachon at sessionm.com> wrote:
> On Wed, Aug 15, 2012 at 8:54 AM, Thomas Vachon <vachon at sessionm.com> wrote:
>>
>> On Wed, Aug 15, 2012 at 8:53 AM, Narayan Desai <narayan.desai at gmail.com> wrote:
>> > On Wed, Aug 15, 2012 at 7:24 AM, Thomas Vachon <vachon at sessionm.com> wrote:
>> >
>> >> I am also on Precise.  Downing/Up'ing the interface via VNC did work.
>> >> How exactly did you setup vhost_net, can you provide your libvirt?
>> >
>> > Hm, that might mean that isn't the problem, but this is an easy enough
>> > thing to check.
>> >
>> > Setting up vhost_net is pretty easy; it is auto-detected by kvm, so
>> > all you need to do is modprobe it on the hypervisor.
>> >  -nld
>>
>> Found the docs saying that.  It might help, I will report back on this
>> thread when I run the tests in a bit
>
> OK, I lost all connectivity between nova-network and my vm's.  DNSMasq
> is running and I added the vhost_net module (and confirmed libvirt
> sees it).  Do I need to do something to the guests now too?

I think I found the root bug:
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/997978