This sounds most like comments #2 and #16 in bug 584048. It can't be bug #579892, because that patch is in maverick.
Do you have wicd or network-manager running? Can you give the output of: iptables -L? cat /etc/network/interfaces cat /proc/net/arp (both before and during a network freeze) Also, could you follow the recipe at https://bugs.launchpad.net/ubuntu/+source/qemu- kvm/+bug/616064/comments/33 ? That should determine whether this is a kernel or libvirt/qemu bug. thanks, -serge ** Changed in: qemu-kvm (Ubuntu) Status: New => Incomplete ** Changed in: qemu-kvm (Ubuntu) Importance: Undecided => Medium ** Changed in: qemu-kvm (Ubuntu) Assignee: (unassigned) => Serge Hallyn (serge-hallyn) ** Changed in: qemu-kvm (Ubuntu) Importance: Medium => Low -- running guests freeze when a guest is powered down https://bugs.launchpad.net/bugs/673705 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