Re: current qemu-kvm doesn't work with vhost

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On 2011-06-17 09:10, Georg Hopp wrote:
> Jan Kiszka <jan.kiszka <at> web.de> writes:
>>
>> On 2011-06-10 05:08, Amos Kong wrote:
>>> host kernel: 2.6.39-rc2+
>>> qemu-kvm : 05f1737582ab6c075476bde931c5eafbc62a9349
>>>
>>> (gdb) r -monitor stdio -m 800 ~/RHEL-Server-6.0-64-virtio.qcow2 -snapshot
> -device
>> virtio-net-pci,netdev=he -netdev tap,vhost=on,id=he
>>>
>>
>> I already came across that symptom in a different context. Fixed by the
>> patch below. 
>>
>> However, the real issue is related to an upstream cleanup of the
>> virtio-pci build. That reveals some unneeded build dependencies in
>> qemu-kvm. Will post a fix.
>>
>> Jan
> 
> FYI
> 
> I encountered the same problem and applied the patch.
> 
> Well this results in the following error while starting the guest:
> 
>  qemu-system-x86_64: unable to start vhost net: 38: 
>   falling back on userspace virtio
> 
> and i have no network at all. I will disable vhost=on for now.

Hmm, works fine for me. The vhost-net module is loaded (though I got a
different message when I forgot to load it)?

Jan

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