http://lwn.net/Articles/218766 http://kerneltrap.org/node/13916 http://kerneltrap.org/node/14059

http://www.linuxdevices.com/news/NS3669465936.html

http://tree.celinuxforum.org/CelfPubWiki/SoftUpdate http://www.mew.org/~kazu/doc/softupdate.html