Actually, CS 19889 is in Xen 3.5 Unstable. However, attempt to install mentioned DomU at Xen 3.5 Dom0 via standard pygrub profile aborts with message cannot find kernel “/boot/platform/i86xpv/kernel/amd64/unix”. Setup bellow has been tested with 2.6.30.1 xenified (aka Suse) kernel and 2.6.31-rc1 pvops enabled kernel been built via rebase/master branch of Jeremy Fitzhardinge git repository. The root cause of the problem is ZFS v.16 utilized by SNV_117 DomU for it’s image device unsupported by Xen 3.4.1.