I faced probably the same problem installing Xen-4.3.2 with Gentoo kernel-3.12.21.
DomU's interface hangs after short time under heavy network load (starting at ~10Mbyte/s). From outside it looks, like the instance would crash, but deactivating and activating the interface e.g. form the "xl console <domU name>" with /etc/init.d/net.eth0 stop/start, restores normal operation. After 3 days of testing/searching I found a workaround. Setting the following options with ethtool, I could successfully prevent my domU's interfaces from hanging: ethtool --offload <network device> gso off tso off sg off gro off This http://cloudnull.io/2012/07/xenserver-network-tuning/ leeds me to my solution. I also posted my other expirience with this bridged network configuration in the Gentoo wiki https://wiki.gentoo.org/wiki/Xen . -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
