[libvirt] Cannot enumerate physical devices with libvirt 0.7.6

Hi all, I often update my F12 box with the rawvirt repository, which just installed libvirt 0.7.6. Since that, I cannot enumerate physical devices (and thus get a beautiful error when I start one of my vms that should use a USB device). I don't think I changed anything else on that box, and, of course, I already restarted the libvirt daemon. I haven't restarted the server itself, because it is currently used, but I could do it if necessary... I make good use of the qemu hypervisor, and I'm looking forward to solve this issue! Frederic. # libvirtd --version libvirtd (libvirt) 0.7.6 # virsh --version 0.7.6 # virsh nodedev-list error :Failed to count node devices error :this function is not supported by the hypervisor: virNodeNumOfDevices