Happens that xl and xm are not compatible.
http://xen.1045712.n5.nabble.com/xm-xl-rename-bug-td4617155.html ( This wouldn’t be as sad if one of the two toolsets was reliably working. But in fact even the main init script for xen had been broken for “xl” users for a few months…)
Just noticed this while I was going after another issue – the output of the “info” commands differs even more, the number of dashes is different, and xl doesn’t have the bug that reports a VM as “blocking” if it wasn’t active on the dom0 cpu at the same moment as xm info was. And more and more.
What is it with the Xen team that parts of the userland just *have* to be broken any given time?