The libvirt driver currently does not set the machine type for a KVM
guest by default. When not specified, libvirt will use the newest
one it knows about. Unfortunately, that can result in live
migrations failing if your environment is using different versions of
the host OS on compute nodes as the destination node may not be able
to support the machine type used when the VM was originally started.
Comment 1Red Hat Bugzilla Rules Engine
2017-05-24 13:11:10 UTC
This bugzilla has been removed from the release and needs to be reviewed and Triaged for another Target Release.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2017:2654