[Bug 1386503] [NEW] openstack snapshot, migration, suspend broken by invtsc

[Don Bowman]

Public bug reported:

I believe this commit
http://libvirt.org/git/?p=libvirt.git;a=commitdiff;h=de0aeafe9ce3eb414c8b5d3aa8995d776a2952de
fixes the issue.

In OpenStack nova, one gets this error:
libvirtError: internal error: unable to execute QEMU command 'migrate': State blocked by non-migratable device 'cpu'

when executing 'nova image-create', or 'nova suspend' operations.

This in turn is caused by the 'invtsc' being used for 'host-model',
preventing a migration.

$ lsb_release -rd
Description:    Ubuntu 14.10
Release:        14.10

$ apt-cache policy libvirt-bin
libvirt-bin:
  Installed: 1.2.8-0ubuntu11
  Candidate: 1.2.8-0ubuntu11
  Version table:
 *** 1.2.8-0ubuntu11 0
        500 http://ca.archive.ubuntu.com/ubuntu/ utopic/main amd64 Packages
        100 /var/lib/dpkg/status

** Affects: libvirt (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1386503

Title:
  openstack snapshot, migration, suspend broken by invtsc

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