Piotr, Xen 4.4.2 made it into trusty-proposed (https://bugs.launchpad.net/bugs/1476666) so maybe you'd like to give it a try?
Piotr, Xen 4.4.2 made it into trusty-proposed (https:/ /bugs.launchpad .net/bugs/ 1476666) so maybe you'd like to give it a try?