I have a new dom0 kernel available for testing (2.6.38-0.rc2.git3.1.xendom0.fc15) at http://koji.fedoraproject.org/koji/taskinfo?taskID=2742521 This is based on the xen/next-2.6.38 branch with a few extra memory fixes, including one which fixes a problem I had causing a crash during boot. xen/next-2.6.38 adds net and pci backends. Michael Young