From owner-freebsd-scsi  Sun Jul  4  2:27:27 1999
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Date: Sun, 4 Jul 1999 11:15:56 +0200
From: Stefan Esser <se@mi.uni-koeln.de>
To: Andre Oppermann <oppermann@pipeline.ch>
Cc: freebsd-scsi@freebsd.org, Stefan Esser <se@freebsd.org>
Subject: Re: ncr0: queue is empty
Message-ID: <19990704111556.B4870@dialup124.mi.uni-koeln.de>
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References: <377B1E99.46188B0C@pipeline.ch> <19990702003518.B468@dialup124.mi.uni-koeln.de> <377C77C1.4F8ACEE1@pipeline.ch>
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In-Reply-To: <377C77C1.4F8ACEE1@pipeline.ch>; from Andre Oppermann on Fri, Jul 02, 1999 at 10:26:41AM +0200
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On 1999-07-02 10:26 +0200, Andre Oppermann <oppermann@pipeline.ch> wrote:
> scbus0 on ncr0 bus 0:
> <Quantum XP34300 81HB>             at scbus0 target 0 lun 0 (pass0,da0)
> <TOSHIBA CD-ROM XM-3401TA 3593>    at scbus0 target 2 lun 0 (pass1,cd0)
> <MATSHITA PD-1 LF-1000 A109>       at scbus0 target 4 lun 0 (pass2,da1)
> <MATSHITA PD-1 LF-1000 A109>       at scbus0 target 4 lun 1 (pass3,cd1)

Many Quantum drives show erratic behaviour if confronted with too many
simultanous commands. For that reason, you may want to add a Quirk entry
for your drive to "/sys/cam/cam_xpt.c", similar to the existing entries
for all kinds of Atlas drives ...

> Do you need more information? What can I do?

More info sent in separate mail (regarding test of whether the problem
was introduced with rev. 1.146 of ncr.c, although you are the only one
to report a problem after that change went in two months ago ...)

Your problem report keeps me from merging 1.146 from -current into 
-stable. This means, that U2W support will be missing from -stable for
another week.

Regards, STefan


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