from v2.6.8-rc3 to v2.6.8-rc4:
Hmm.. Not a huge amount of changes, but enough that I wouldn't have felt
comfortable releasing it as 2.6.8. I've been hoping to resolve the dcache
reports, and we found _one_ bug, but that one would likely not affect a
whole lot of people, so..
Some ARM updates, the i586 AES code rewrite, some ppc updates.. A large