>
https://lists.freebsd.org/pipermail/freebsd-security/2013-October/007226.html
http://www.freebsd.org/news/status/report-2013-07-2013-09.html#AES-NI-Improvements-for-GELI
http://www.freebsd.org/news/status/report-2013-07-2013-09.html#Reworking-random(4)