[SunRescue] Sparc 1 struggles

[Darryl Barile]

Well I 'm not sure is setting the Terminal to 7E1 is
making a difference or not. The machine refuses to go that
far now. It is coming to a halt with various errors like

Watchdog reset
Memory Address not Aligned

Watchdog reset
Window Underflow

Watchdog reset
Instruction Access Exception

Alll the errors happen at the same point, after the machine has printed:

Booting from: sd(0,0,0) vmunix
root on sd0a fstype 4.2
Size 1343488+218832+131992 bytes

This is then followed by one of the errors above.
The first value after size does vary but I'm not sure what it means.

Very puzzling

Darryl


----- Original Message -----
From: James Lockwood <james at foonly.com>
To: <rescue at sunhelp.org>
Sent: Sunday, April 30, 2000 1:36 AM
Subject: Re: [SunRescue] Sparc 1 struggles


> On Sun, 30 Apr 2000, Darryl Barile wrote:
>
> > Ooops...
> >
> > Message subject lines and late nite problems again
> >
> > I recently bought a SparcStation 1 home to try and satisfy a need for
> > curiosity. Unlike some other Suns I've seen this unit has a card in the
Sbus
> > slot right abiove the processor that plugs into the processor slot in
the
> > mainboard by a set of long 'pins', very interesting. The part number
> > is 500-1454. Not sure if this is part of the problem or not.
>
> Wow, that's a blast from the past!
>
> TI Floating Point Unit
> Sun-4/60
> 501-1454
>
>  1.The TI FPU was shipped from August to November 1989.
>  2.Approximately 130 TI FRUs were shipped to customers.
>  3.The TI FPU is replaced with a Weitek FPU upon failure.
>
> Early (early!) Sparc 1's were not shipped with a FPU.  This card was a
> prerelease primarily to test code.  There were some incompatibilities with
> the "real" FPU but they were minor.
>
> I collect them.  I've got 3% of the production run so far.  :)
>
> Have you tried booting in 7E1 instead of 8N1?  The problem you are
> describing sounds like what happens when a SunOS kernel takes over from
> the PROM for console output and switches the mode.
>
> -James
>
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