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	Sun, 19 Sep 2004 23:29:01 PDT
Date: Sun, 19 Sep 2004 23:29:01 -0700 (PDT)
From: Rishi Chopra <idfubar@yahoo.com>
To: michael@mcgoldrick.org
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Subject: ATA - UDMA ICRC Error
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I noticed the posting at:

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=20040120192745.GA1209%40uriel.mcgoldrick.org&rnum=29&prev=/groups%3Fq%3Dfreebsd%2Bstatus%253D51%2Berror%253D84%2BICRC%26hl%3Den%26lr%3D%26ie%3DUTF-8%26start%3D20%26sa%3DN

and was curious if a solution had been found for this
problem (kernel: ad4: FAILURE - READ_DMA
status=51<READ, DSC, ERROR> error=84<ICRC, ABORTED>).


I have the same problem with a PCI promise Ultra100
TX2 controller card and 200GB Western Digital 2000JB
drive on startup.

I've double-checked that the cable, controller, and
drive are all working by plugging them by accessing
them through DOS and Windows 2000; the drive shows up
just fine and produces flawless I/O.  My drive is
jumpered as single/master, set to ATA100, and the
cable works just fine.

I've noticed other postings with a similar error, but
the only suggestion given was either controller
failure or cable failure.  In my case I'm certain that
neither is the cause of the problem.

Any ideas?

=====
Rishi Chopra
http://www.ocf.berkeley.edu/~rchopra


		
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