<grin> reboot and see if it does it again...
> Jan 7 14:21:37 gumby kernel: scsidisk I/O error: dev 08:11, sector 528
...
>The funny thing is that the scsidisk error says dev 08:11; is it refering
>to:
>
> brw-rw---- 1 root disk 8, 11 Sep 12 1994 /dev/sda11
That's a HEX number... so it is 8, 17 or /dev/sdb1 that it's bitchin' about.
Check the cables. If it keeps happening, try turning off the cache. (Not the
CPU's cache but the COAST module cache.)
--Ricky