No it did not. I just recalled that on a previous occasion where virtio networking broke in the guest it recovered when the host was booted. This was indeed the case this time as well. Since the package isn't from ubuntu I guess that ends the case.
# apt-cache policy virtualbox-4.1 virtualbox-4.1: Installed: 4.1.26-84997~Ubuntu~precise Candidate: 4.1.26-84997~Ubuntu~precise Version table: *** 4.1.26-84997~Ubuntu~precise 0 500 http://download.virtualbox.org/virtualbox/debian/ precise/contrib amd64 Packages 100 /var/lib/dpkg/status -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1175331 Title: No virtio in 13.04 guest OS under virtualbox To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1175331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs