*BSD News Article 38785


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From: nate@bsd.coe.montana.edu (Nate Williams)
Newsgroups: comp.os.386bsd.questions
Subject: Re: REPOST: What's that: ahb_scsi_cmd0: more than 33 DMA segs
Date: 1 Dec 1994 19:17:43 GMT
Organization: Montana State University, Bozeman  Montana
Lines: 21
Message-ID: <3bl7gn$rs2@pdq.coe.montana.edu>
References: <D01sxM.JKs@luva.lb.bawue.de>
NNTP-Posting-Host: bsd.coe.montana.edu

In article <D01sxM.JKs@luva.lb.bawue.de>,
Michael Giegerich <migieger@luva.lb.bawue.de> wrote:
>
>What's the meaning of this error message?
>
>Nov  8 21:52:53 luva /386bsd: ahb_scsi_cmd0: more than 33 DMA segs
>Nov  8 21:52:53 luva /386bsd: sd0: oops not queued
>Nov  8 22:03:40 luva /386bsd: ahb_scsi_cmd0: more than 33 DMA segs
>Nov  8 22:03:40 luva /386bsd: sd0: oops not queued

It means that somehow the software got a bad SCSI request.  This is
generally caused by some sort of memory error.  I suspect bad memory
and/or bad hardware termination on the SCSI controller.


Nate
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