Request app-emulation/xen and app-emulation/xen-tools ebuilds for new Xen 4.0.1 release. Existing 4.0.0 ebuilds work with trivial modifications. Reproducible: Always
Upstream hg says it has been tagged two weeks ago.
*** Bug 342417 has been marked as a duplicate of this bug. ***
Xen 4.1 in tree. Please test with it and reopen if it doesnt work