minimize the difference from 44-4, fix F17 blocker
Revert most of the patches added in 44-5. F17 has 44-4 right now so let's
try to minimize the risk of breakage before GA release. Apply only:
- the fix for CVE-2012-1174
- the PAGE_SIZE build fix
- fix for a blocker bug (processes killed on libvirt restart, #805942)
Fixes for less important bugs will be pushed post F17 GA.