we had 12.04 vms experiencing these hangs regularly (sometimes only staying online for hours). after enabling vhost_net there was a period of weeks without issue but a few days one of them hung again with the same (or very similar) symptoms. an ifdown/ifup from within the guest brought it back on the network.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/997978 Title: KVM images lose connectivity with bridged network To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/997978/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs