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Date:      Thu, 22 Apr 1999 11:30:58 -0700 (PDT)
From:      Doug White <dwhite@resnet.uoregon.edu>
To:        Morten Seeberg <morten@seeberg.dk>
Cc:        questions@FreeBSD.ORG
Subject:   Re: ahc driver problem, or hardware?
Message-ID:  <Pine.BSF.4.03.9904221130100.7869-100000@resnet.uoregon.edu>
In-Reply-To: <006401be8c40$b011ba60$16b4010a@msb.int.danadata.dk>

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On Wed, 21 Apr 1999, Morten Seeberg wrote:

> When booting my IBM 330, 32Mb, Adaptec 2940UW with IBM 1Gb UW disk on a set
> of FreeBSD floppies (Tried both 3.1-RELEASE, 4.0-CURRENT 19990421), I get
> the following set of errors from my Adaptec controller:
> 
> I didnīt want to spend all night writing this down, but it basicly just
> cycles when reaching ID 15. Only real difference is the changing ID in the
> line "(probe0:ahc0:0:0:0):"
> 
> (probe0:ahc0:0:0:0): Queing a BDR SCB
> ahc0: Issued aChannel A Bus Reset. 15 SCBs aborted

In addition to checking the interrupt, check the termination on the disk
and controller.  The disk should be set to take termination power from the
bus, and enable if it's the last disk in the chain.

Doug White                               
Internet:  dwhite@resnet.uoregon.edu    | FreeBSD: The Power to Serve
http://gladstone.uoregon.edu/~dwhite    | www.freebsd.org



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