From owner-freebsd-scsi  Sat Apr  4 04:47:42 1998
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Date: Sat, 04 Apr 1998 13:35:35 -0100
To: "Bryan K. Ogawa" <bkogawa@primenet.com>
From: Malte Lance <malte@webmore.com>
Subject: Re: Will a termination problem cause total hangs?
Cc: freebsd-scsi@FreeBSD.ORG
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At 12:37 03.04.98 -0800, you wrote:
>
>Can a termination problem cause total kernel hangs?
>
>Right now, at least two of us on -questions are experiencing problems with
>total lockups (no pings) when in X, usually when using Netscape (in my
>case) or in heavy concurrent disk accesses (in Malte's case) on SCSI
>systems with a number of SCSI devices. (4 to 7). 

In my case i encounter this hangs also when in X. Since i run XDM i dont
know if it would happen without X. This crashes happen always to me on
heavy-loaded scsi-bus-activity where more than one device are involved.
In my case this is not just related to X or NS. This kind of hangs also
happen in Win95.

>
>Malte has had success in reducing the hangs by changing the termination,
>and I'm wondering if the sorts of hangs we're looking at could be caused
>by termination problems.
>
>Both of us have Adaptec 2940UWs.

I am using a plain AHA-2940 under FBSD-2.1.5(R)

>
>Any ideas or suggestions?  I had thought that a SCSI hung kernel would at
>least return pings?
>

Malte Lance
malte@webmore.com
>bryan k ogawa  <bkogawa@primenet.com>   http://www.primenet.com/~bkogawa/
>
>

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