Is it normal behavior that instances can only be live migrated between hypervisors running the same kernel?
Like this I am not able to patch my hypervisors without downtime on the instances.
When I live migrate all instances from hypervisor A to hypervisor B, patch hypervisor A, I cannot migrate the instances back to hypervisor A since it is running a newer kernel.
The error is:
guest CPU doesn't match specification: missing features: xsaves
My source and target hypervisors have both the same CPU.
Running OpenStack Rocky.