Comment 38 for bug 199533

Clemens, Maurício: I don't have suggestions for you at this point as I may be running into a different problem.

You both might consider giving adequate information to the xen-users list and see if you get any suggestions.

http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users

I will try to report back if I find out anything that can help you.