This is the master Fedora Core 3 "BLOCKER" bug. Any bug in Red Hat bugzilla which would be considered a "stop ship" bug a.k.a. a "ultra brown paper bag" bug, can be marked for consideration to be a release BLOCKER by adding this bug to it's "Blocks:" field. Anyone in the community who wishes to nominate bugs for FC3Blocker status, should discuss them on the fedora-devel-list, and once concensus has been reached, someone can flag them as FC3Blocker, or alternatively as FC3Target. This bug has the bug alias "FC3Blocker" for easy access and blocker flagging.
Suggestion from Axel Thimm to add bug 132947 (kernel memory leak on x86_64 in 32/64 mixed mode) to this list.
Closing.