Fedora xen - Mar 2007 - fedora kernel-xen-2.6.20 unusable, freezes/crashes for many

Hi list!

Any information about this bug:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=234008

It seems to affect many people.. latest 2.6.19 kernel-xen runs fine on the
same hardware/dom0.. but 2.6.20 crashes/freezes quite immediately. 

-- Pasi