On 08/21/2014 04:14 PM, bancfc@openmailbox.org wrote:

I'm using libvirt version 1.1.3.5 at the moment. I am sure I followed the right syntax as I put it under the features section:

<features> ... <pvspinlock/> </features>

It says: error internal error: unexpected feature pvspinlock Failed. try again?

That would explain it. A quick git search shows pvspinlock wasn't added until v1.2.0, via commit e0dc8511. Since it is a feature and not a bug fix, there is no justification for backporting it into the stable 1.1.3.x tree. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org