Subject: Re: LC040 support?
To: The Great Mr. Kurtz [David A. Gatwood] <davagatw@Mars.utm.edU>
From: Colin Wood <ender@is.rice.edu>
List: port-mac68k
Date: 02/10/1997 15:55:48
> > FWIW, my 68LC040-based Quadra 610 had *exactly* the same problem with fsck.
> > This doesn't guarantee that the problem is related to the FPE bug, but it
> > shows that at least two different 68LC040 systems have had exactly the same
> > problems when booting up.
>
> Sounds more like a scsi driver bug, at least that'd be my guess. The
> ncrscsi96 driver is partially derived from the ncrscsi driver, but with
> several changed commands, right? Would that happen to be a quantum drive,
> less than 3 years old? Because that's basically the same symptom that
> some people got with the ncrscsi driver on some pre ...c96 with certain
> drives. That's why a lot of ppl use the sbc driver. If there's some
> shared code, it would then seem somewhat likely that the problem would be
> in the code that's held in common between the two drivers, and in
> something that's not in the sbc driver. (Of course, it could be two
> separate problems, simply w/ the same basic symptoms, i.e. hard
> read/write errors.)
Actually the ncrscsi96 driver we use is based on the esp driver from (I
think) the sparc port. So, I doubt that it would have quite the same
trouble as the older Mac ncrscsi driver. However, I do believe that fsck
makes use of floating point operations (I seem to remember broken fsck
being a symptom of the earlier FPE problems), so it is quite probably
related to the FPE bug. Of course, I could be totally wrong ;-)
Later.
--
Colin Wood ender@is.rice.edu
Consultant Rice University
Information Technology Services Houston, TX