For the uninformed - a CX drive will not work with EX nor ST Fireball electronics. It does make for interesting light and sound work, though.
Working with SGI folks to boost kio performance for XFS. Mainly just a natural extension of the original wait_on_buffer/page work I did when hacking ll_rw_blk.
Ported the recent CD + DVD-RAM fixes to 2.2.16-pre4. Now I just need to test a bit more, diff up, and send it off to Alan.