Cset 15110 in xen-3.1-testing.hg claims to fix cpu affinity resetting after save and restore. It is recommended for inclusion in RHEL 5.2.
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
This request was previously evaluated by Red Hat Product Management for inclusion in the current Red Hat Enterprise Linux release, but Red Hat was unable to resolve it in time. This request will be reviewed for a future Red Hat Enterprise Linux release.
Looks like this is a dup of a much older bug. Going to close it as such. Chris Lalancette *** This bug has been marked as a duplicate of bug 228890 ***