Serge, I've completed (I hope) your suggestions. Unfortunately neither the new KVM nor the new kernel seemed to resolve the issue. More details below but I'm not sure where to take this from here. As you point out, it might be an issue with our environment. I doubt it's bad software installed on the host since the host is running bare minimum stock Lucid - just enough to act as a VM host. The bad networking switch/equipment is also a possibility, although I'm a bit confused since I would expect the NAT configuration to be indistinguishable from any basic machine on the network since the purpose of NAT is to hide the virtual LAN inside the host. Perhaps some information actually leaks from the NAT abstraction in packets sent out from the host?
For my experiments today, I: 1. switched networking back to NAT and was able to reproduce the issue (svn co depot_tools) again 2. apt-add-repo ppa:serge-hallyn/lucid-kvm-test 3. apt-get update && apt-get upgrade; this pulled in new versions of kvm, qemu-common, qemu-kvm, as well as a new kernel 2.6.32-24-server as part of the normal Lucid updates 4. rebooted the machine 5. reproduced the issue again 6. apt-add-repository ppa:kernel-ppa/pre-proposed 7. apt-get install linux-headers-server linux-image-server linux-server 8. rebooted the machine 9. reproduced the issue again I did not test new kernel + stock KVM due to time constraints. Please let me know if there are any other tests you'd like me to try and I'll try to schedule more maintenance time. Thanks, brian -- Broken networking in kvm guests https://bugs.launchpad.net/bugs/616064 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
