Ask Your Question

Revision history [back]

click to hide/show revision 1
initial version

live-migration - libvirt - invtsc

Hi all,

I'm using openstack on Debian, with http://archive.gplhost.com/debian icehouse apt mirror.

Installing new compute nodes yesterday seems to break live migration from these new hosts. Libvirt installed version is now 1.2.7-11~bpo70+1 and seems to introduce a new cpu feature :

$ virsh capabilities : 



<capabilities>
  <host>
    <uuid>xxxxxxxx</uuid>
    <cpu>
      <arch>x86_64</arch>
      <model>Haswell</model>
      <vendor>Intel</vendor>
      <topology sockets='1' cores='4' threads='2'/>
      <feature name='invtsc'/>

.....

When I try a live migrate, I get an error in the nova-compute.log of the host from which the instance should be migrating :

Live Migration failure: Requested operation is not valid: domain has CPU feature: invtsc

I googled it, and didn't find a lot of answers, mainly this post https://bugs.launchpad.net/nova/+bug/1373949 confirming that it is a libvirt issue.

Does anyone has had this issue ? Is there any workaround to be able to live-migrate from these newly installed hosts ?

Thanx