RED State Exception

[Bjoern A. Zeeb]

On Fri, 17 Sep 2004, Bjoern A. Zeeb wrote:

Hi,

thanks for the immediate help again.


As this is not freebsd specific you might want to ignore or respond
off-list.
I am posting this for the archives as googling hasn't presented that
many results and few details. I might put a page once I find the
time for that.

Does anyone know how or where to decrypt this correctly ?

If I should guess what is what I would say it goes like this:

> ==== booting ====
> ...
> Timecounters tick every 10.000 msec
>
> RED State Exception

4 memory banks first:

bank 1:
> TL=0000.0000.0000.0005 TT=0000.0000.0000.0010
>    TPC=0000.0000.c003.c200 TnPC=0000.0000.c003.c204 TSTATE=0000.0044.5800.1505

bank 2:
> TL=0000.0000.0000.0004 TT=0000.0000.0000.0010
>    TPC=0000.0000.c003.c200 TnPC=0000.0000.c003.c204 TSTATE=0000.0044.5800.1505

bank 3:
> TL=0000.0000.0000.0003 TT=0000.0000.0000.0010
>    TPC=0000.0000.c003.c200 TnPC=0000.0000.c003.c204 TSTATE=0000.0044.5800.1505

bank 4:
> TL=0000.0000.0000.0002 TT=0000.0000.0000.0010
>    TPC=0000.0000.c004.0f80 TnPC=0000.0000.c004.0f84 TSTATE=0000.0044.5800.1505

CPU:
> TL=0000.0000.0000.0001 TT=0000.0000.0000.0068
>    TPC=0000.0000.f000.93d8 TnPC=0000.0000.f000.93dc TSTATE=0000.0044.0000.1606
> ==== dead ====

why ? the first four look quite similar apart from bank 4;
the last one is different and thus might be CPU.

I had 4 equal memory modules installed and I know that either the one in
bank 3 or 4 or both might be damaged. With them in I got the 'RED
State Exception' with them pulled off everything is fine. From the above
output it might have only been the one in bank 4 that is damaged.
I will check this once I will install the one/two replacement modules
I luckily have  but unluckily didn't have with me.

If someone knows better and this is only BS please correct me!

-- 
Greetings
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT