I spent a couple of months in early 2003 on an SGI internship trying to polish Linux's rather flakey Origin 200 support. I haven't touched this stuff since then: if you find good page on Linux and the Origin 200, please let me know so I can link to it. An
P. Chow, and M. Horowitz. ISCA '87: Proceedings of the 14th annual international symposium on Computer architecture, page 300--308. New York, NY, USA, ACM, (1987)