oops, I hadn't seen that there was a PAE-enabled Xen hypervisor package (xen-hypervisor-3.0-i386-pae).
There's no bug. -- PAE mode mismatch between Xen and DOM0 https://launchpad.net/bugs/65096 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
