From owner-freebsd-scsi  Thu Mar 13 06:51:47 1997
Return-Path: <owner-freebsd-scsi>
Received: (from root@localhost)
          by freefall.freebsd.org (8.8.5/8.8.5) id GAA00662
          for freebsd-scsi-outgoing; Thu, 13 Mar 1997 06:51:47 -0800 (PST)
Received: from shadows.aeon.net (bsdscsi@shadows.aeon.net [194.100.41.1])
          by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id GAA00657
          for <scsi@freebsd.org>; Thu, 13 Mar 1997 06:51:39 -0800 (PST)
Received: (from bsdscsi@localhost)
          by shadows.aeon.net (8.8.5/8.8.3) id QAA18460;
          Thu, 13 Mar 1997 16:48:51 +0200 (EET)
From: mika ruohotie <bsdscsi@shadows.aeon.net>
Message-Id: <199703131448.QAA18460@shadows.aeon.net>
Subject: Re: Still SCSI Bus resets with 2940 on FreeBSD-2.2
In-Reply-To: <19970307195710.08931@klemm.gtn.com> from Andreas Klemm at "Mar 7, 97 07:57:10 pm"
To: andreas@klemm.gtn.com (Andreas Klemm)
Date: Thu, 13 Mar 1997 16:48:51 +0200 (EET)
Cc: scsi@freebsd.org
X-Mailer: ELM [version 2.4ME+ PL31 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-scsi@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

> Sorry to say this, but I still have serious trouble with my AHA
> 2940 when dumping data to my QIC Streamer (TDC-4222) and tagged
> command queuing is enabled.
>
> Ordered Tag queued
> sd0(ahc0:0:0): SCB 0x4 - timed out in command phase, SCSISIGI==0xc6
> SEQADDR==0x5e
> sd0(ahc0:0:0): abort message in message buffer
> sd0(ahc0:0:0): SCB7 - Abort Completed
> sd0(ahc0:0:0): no longer in timeout
> Ordered Tag sent

this might sound weird, but _these_ were the messages i got with my 2.1.STABLE
machine (originally ccded as 2.1.5 then went to 2.1.7), without configuring

> options	AHC_TAGENABLE
> options	AHC_SCBPAGING_ENABLE
> options	AHC_ALLOW_MEMIO

these in the kernel. i never have gotten these on any kernel so far.

and _yes_, the machine did hang too... i had screen fulls of those... but
since it was a serious panic nothing got logged... i dont dump panics...

and the question is, if those should be visible when AHC_* options are
configured into the kernel, why did i see them? for people who dont remember
or havent seen my earlier articles about this, i used ccd, but after i saw
those i got scared and took them "down". (ccd with and without mirror,
interleaved and not)

(i have posted few articles about this to the hackers too, but i think i
dont have to crosspost this to there)


mickey