Summary : Self Test Failed

From: JOSEPH AAJ Chackompally (AAJ@necsin.nec.com.sg)
Date: Tue Mar 31 1998 - 20:26:31 CST


My sincere Thanks to

 Igor Prokopinskiy <ipp@chrysler.com>
Andy Cranston <Andy.Cranston@thomson-directories.co.uk>

Question :

Dear Sun Managers,

Hardware : Sun Ultra Enterprise 3000

I did a test-all at the
ok prompt

The following was displayed

testing /sbus@3,0/SUNW, fas@3,8800000
CE DMA fill from address ffde4000 fro 80bytes
ERROR: DMA Hang Condition detected
Address ffde2008
Expected 8
Observed 0
Self Test failed Return code=1
testing /sbus@3,0/SUNW,hmc@3,8C00000
Internal loop back test-succeeded
Transciever check - passed
testing /sbus@2,0/cgsix@2,0
testing /central@1f,0 /fhc@0, f8800000 /zs@0,904000

After this the machine was hanging for a long time
I switched off the machine and restarted

What is the cause of this error how can this be corrected ?
what is /central@1 ?

Thanks and Regards
Aaj

Andy Cranston <Andy.Cranston@thomson-directories.co.uk> Wrote :

The /central@1f,0 is the "clock board" in your E3000. The clock board
has connections for the terminal console device and, if you have a
bit-mapped console display, the bit-mapped console and
mouse/keyboard.
The clock board is thinner than the other boards and is the right-most
board when viewing the E3000 system unit from the rear.

Working out the associatations between what's under /devices, what
dmesg
says and what you can physically see in what slot around the back
seems
a hidden art to me. I've yet to discover a source of comprehensive
information on the subject :-(

Regards,

Andy Cranston.
OK, I've taken a look at the clock board on our E3000 and it has the
following (order top to bottom):

    A small silver plate covering a connector of unknown type
    A 25 pin RS-232 dumb terminal connector marked 'A'
    The socket for the combined keyboard/mouse lead
    A 25 pin RS-242 dumd terminal connector marked 'B'

 Igor Prokopinskiy <ipp@chrysler.com> wrote :

I was running "test all" on 5 different E3000 last week but could not
reproduce the error condition that you have. I am going to ask our
Amdahl people who set up the hardware part for us to check if they can
clear the question.
Talking about the part of your question on "/central@...", I think that
"central" is just another name for the back plane, the only difference
is that you can connect devices from the both sides of the main board.
Regards,
Igor

 Igor Prokopinskiy



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