Running 'sudo ethtool -K eth0 tx off' in the domU fixes the problem. Looks very much like a nasty an well hidden bug.
-- Heavy network performance problem https://bugs.launchpad.net/bugs/177512 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
