The upgrade of OpenSuse went well right up to the point where a reboot was required and at that point locked up the whole qemu/kvm system, some issue with the address still in use like it did not properly free it up when the virtual host went down.
Anyway, it required a reboot of iglulik which hosts a number of virtual machines and so took many things out of service for about two minutes around 9pm.
At this point I am going to do a fresh install of opensuse so it will be out of service for a while.