> At the end of the day though I'm guessing this isn't virt-manager specific, > it's probably the result of xen/libvirt weirdness on f15. I think the dom0 > kernel was only fully merged into f16, so are you getting dom0 for f15 from a > different repo? Basically after fedora + xen + libvirt + virt-manager not > having a lot of testing together for many many fedora releases, things are > only now starting to back in shape, but f15 likely still has a bunch of issues. So you think it would be better to upgrade to f16? - Gergely