[SunRescue] 3/60 crate

[Michael Thompson]

The cache in the 3/4xx is supported in the most recent versions of NetBSD.
It makes a significant speedup from previous versions. The I/O MMU is not
supported yet, but Jeremy Cooper is working on that.

>   The ECC memory isn't supported on the 3/4xx nor probably the 3/2xx, so any
>memory error takes the whole OS out. The ie driver is unstable and sometimes
>takes out the entire OS too. The si is unstable as well, although that is
>probably more the fault of the hardware. The caches on the 3/4xx aren't
>supported yet either, with the result that it feels slower than a 3/60.
>
>   I had a good deal of VME hardware in service, but since the rollover
>from SunOS to NetBSD for Y2K and security issues, I've had to ditch it all
>until such time as I or somebody can fix NetBSD. Once the ie driver is
>fixed, then at least the 3/1xx systems can be run diskless.



Michael Thompson
E-Mail: M_Thompson at IDS.net