I've got the problem back on the same server. This time I cant switch it off, whatever I do.
However, this forced me to strip down the issue to the following fact: Switching on ip_forwarding starts the packet loss. Apparently it was only by accident that launching libvirt-bin switched it on. And I totally fail to see, how I could switch it off and on again to have it work. As it is now, forwarding on means packet loss, forwarding off does not. Even using a kernel that works flawlessly on a similar computer with a similar networking card in the very same computing center fails to solve the issue. The Hoster's netboot rescue system, however, does NOT expose the problem. I am totally lost on this and will problably have to reinstall the whole system. So, just to clarify, it seems not to be a libvirt-bin problem but some sort of general networking/hardware problem. -- libvirt-bin on latest lucid: heavy packet loss https://bugs.launchpad.net/bugs/571408 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs