Thanks for reporting this bug. I can't reproduce this on quantal (or raring), using variations of 'kvm -serial mon:pty -hda x.img -cdrom precise-mini-amd64.iso'. I also note that the libvirt xml you cite is present in all of my vm xmls. If you can reproduce it in raring using kvm, please paste the exact commands you used here and re-set status to New.
** Package changed: qemu (Ubuntu) => qemu-kvm (Ubuntu) ** Changed in: qemu-kvm (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/1113911 Title: vm's with pty console hang on start, eat 100% cpu waiting for console input To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1113911/+subscriptions -- 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