On Tue, 2009-09-29 at 15:20 -0400, Jim Paris wrote: > Nevermind that, my conclusions were bogus. Things still didn't quite add > up, so I tracked down what's really going on here: > > - Libvirt 0.7.1 (as packaged by Debian) has IFF_VNET_HDR support. > - Qemu-kvm 0.11.0 (as built by myself) did NOT include IFF_VNET_HDR > support, because it was built against the older headers on my > system. > > Libvirt assumes that if it can support IFF_VNET_HDR, and qemu is new > enough, then qemu must support IFF_VNET_HDR too. This assumption was > wrong in my case, but it seems there's no easy way for libvirt to > figure out the correct thing to do. > > Anyway, after updating the linux-libc-dev package and rebuilding > qemu-kvm, things work now. Yeah, that makes some sense - we have no way of knowing whether qemu was compiled with IFF_VNET_HDR support, all we can do is check that that version of qemu would have support if compiled against headers with IFF_VNET_HDR. Thanks, Mark. -- Libvir-list mailing list Libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list