Looking slight further back in the logs before the virNWFilterUndefine API call, I see an attempt to start a guest:
2014-01-21 04:15:07.124+0000: 29622: debug : virDomainCreateWithFlags:9482 : dom=0x7f31a0001900, (VM: name=instance-00000053, uuid=9199131f-7ae8-4e9e-9065-0b47787180c1), flags=0 the logs show that this never completes. This pretty much confirms that we're hitting that libvirt race condition between parallel domain start / nwfilter changes. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1228977 Title: n-cpu seems to crash when running with libvirt 1.1.1 from ubuntu cloud archive To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-archive/+bug/1228977/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs