From owner-freebsd-scsi Wed Jan 8 08:16:22 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id IAA13116 for freebsd-scsi-outgoing; Wed, 8 Jan 1997 08:16:22 -0800 (PST) Received: from gatekeeper.fsl.noaa.gov (gatekeeper.fsl.noaa.gov [137.75.131.181]) by freefall.freebsd.org (8.8.4/8.8.4) with ESMTP id IAA13089; Wed, 8 Jan 1997 08:16:08 -0800 (PST) Received: from cardinal.fsl.noaa.gov (daemon@cardinal.fsl.noaa.gov [137.75.60.101]) by gatekeeper.fsl.noaa.gov (8.7.5/8.7.3) with ESMTP id QAA11496; Wed, 8 Jan 1997 16:16:07 GMT Received: from auk.fsl.noaa.gov by cardinal.fsl.noaa.gov with SMTP (1.40.112.3/16.2) id AA155570166; Wed, 8 Jan 1997 16:16:06 GMT Message-Id: <32D3C8B1.EDA@fsl.noaa.gov> Date: Wed, 08 Jan 1997 09:17:53 -0700 From: Sean Kelly Organization: CIRA/NOAA X-Mailer: Mozilla 3.0Gold (X11; I; HP-UX B.10.10 9000/725) Mime-Version: 1.0 To: Stefan Esser Cc: scsi@freebsd.org Subject: Re: Problem appears from migration from bt0 to ncr0 References: <32D125EB.4E3F@fsl.noaa.gov> <32D15EA6.47A0@fsl.noaa.gov> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-scsi@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Stefan: Here're the results so far with the DFRS drive of doom. First, with the system running 2.1.5R, I modified /sys/scsi/sd.c and changed xs->timeout from 10000 to 80000. Later that evening, the DFRS went to sleep but the same problem occurred as before. Perhaps I should've used a higher value? (And if what I changed wasn't correct, do let me know.) Next, I upgraded to 2.2-BETA, and ran the system with an unmodified sd.c. This time, the system locked up (!) when the DFRS went to sleep. The console displayed: ncr0: SCSI phase error fixup: CCB already dequeued (...) and the scrollback buffer worked, and I could enter my account name at the login prompt. But nothing else; as if any activity requiring the disk just hung. I hit the reset switch. I still need to try changing the xs->timeout in the 2.2-BETA kernel and forcing the tape drives to be async in /etc/rc.local. Thanks for your help so far! -- Sean Kelly NOAA Forecast Systems Laboratory kelly@fsl.noaa.gov Boulder Colorado USA http://www-sdd.fsl.noaa.gov/~kelly/