Not sure if this is expected or not, but I've been unable to boot a
development guest kernel on a FC5 x86_64 host.
[root@hammer ~]# xm create -c fcdev-x86_64
Using config file "/etc/xen/fcdev-x86_64".
Going to boot Fedora Core (2.6.16-1.2208_FC6xenU)
kernel: /vmlinuz-2.6.16-1.2208_FC6xenU
initrd: /initrd-2.6.16-1.2208_FC6xenU.img
Started domain fcdev-x86_64
[root@hammer ~]#
--
Orion Poplawski
System Administrator 303-415-9701 x222
Colorado Research Associates/NWRA FAX: 303-415-9702
3380 Mitchell Lane, Boulder CO 80301 http://www.co-ra.com