Description of problem: [This is just a clone of an upstream BZ] https://bugs.launchpad.net/nova/+bug/1417667 Currently in OSP7, this is not present, hence migrating (live/cold) fails if there are other instances using the same cpu-range on the destination compute node. As a result, the instance can only be started after making sure the existing/running instance stop using the vcpu(and hence the pcpus its assigned to).
*** This bug has been marked as a duplicate of bug 1222414 ***
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days