Hello, this is to report that Xen 4.2.3 (using Gentoo), vanilla kernel 3.10.17 and GPLPV r956 has passed my quite intensive torture test described here (http://lists.xen.org/archives/html/xen-devel/2013-06/msg00820.html). I stopped it after 43 hours. Gentoo users may find the attached ebuilds for Xen 4.2.3 helpful. Regards Andreas