I have the same problem and it seems to be caused by the video card (i915). I changed the driver to vesa in xorg.conf and it booted just fine. I added the kern.log of the crash.
** Attachment added: "kern_xen_fail.log" http://launchpadlibrarian.net/14543671/kern_xen_fail.log -- crash on start in xen 3.2 https://bugs.launchpad.net/bugs/196571 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs