Date: Wed, 08 Jan 1997 09:17:53 -0700 From: Sean Kelly <kelly@fsl.noaa.gov> To: Stefan Esser <se@freebsd.org> Cc: scsi@freebsd.org Subject: Re: Problem appears from migration from bt0 to ncr0 Message-ID: <32D3C8B1.EDA@fsl.noaa.gov> References: <32D125EB.4E3F@fsl.noaa.gov> <Mutt.19970106205850.se@x14.mi.uni-koeln.de> <32D15EA6.47A0@fsl.noaa.gov> <Mutt.19970106212906.se@x14.mi.uni-koeln.de>
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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/
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