Sorry for not responding for so long. > Just to be sure, your symptoms are exactly the same as in the Description - kvm hangs (no response to network or the vnc console) and takes 100% cpu?
Yes, the symptoms are exactly the same. > Unfortunately, based on your .xml file it looks like you're not using an LVM backed VM. I wonder if we should pursue this in a separate bug. Would you mind opening a new bug? I've experienced the exact same bug (or at least the exact same symptoms) both with LVM and qcow2 images. If you feel that LVM is a sufficiently differentiating factor then I'm happy to file a new bug. I've found that two out of three servers with 12.04 are affected by this bug. That means that brand new images built on these machines exhibit this bug. However, I am still able to build images on the third server which work as expected on any of the three servers. I don't know what to make of that, since the machines should be close to identical in setup (and are certainly identical from a hardware perspective). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs