Yay, problem self-solved! > > I have two identical machines with exactly the same CentOS 5.4 kickstarted > from the same sources, and the same packages installed. Their cpuinfos are > identical, and they are running libvirt 0.6.3 with the very same > libvirtd.conf. > Turns out permissions on /dev/kvm have to be root:kvm, not root:root. For some reason this automagically happened on one install but not the other. Any idea why? Ah well. --Claude