See the ksummit announcement elsewhere in this thread. The list of issues is given there. We could get 95% of the way in userspace, but not all the way (the iss

See the ksummit announcement elsewhere in this thread. The list of issues is given there. We could get 95% of the way in userspace, but not all the way (the issues are by no means obvious or trivial, so take a look at the announcement).