At this point the only thing I"ve not reproduced is software raid. I simply cannot reproduce this, with or without libvirt, with virtio, with multiple CPUS and small or large amounts of memory, and with all of the xml segment above used as the basis for a libvirt VM definition.
** Changed in: kvm (Ubuntu) Status: In Progress => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/703811 Title: kvm guest's cpu usage with virtio storage driver goes up to 100% because of flush process -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs