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Sender: Alexander Motin <mavbsd@gmail.com>
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Date: Sat, 08 Sep 2012 14:29:57 +0300
From: Alexander Motin <mav@FreeBSD.org>
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To: kirk russell <kirk@ba23.org>
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Cc: freebsd-stable@freebsd.org
Subject: Re: FreeBSD 9.1 RC1 and CAM issues with old SCSI drive
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Hi.

It seems like both of your problems have the same cause: device report 
wrong size of INQUIRY data, that causes failure on attempt to fetch it. 
With FreeBSD 9.0 it caused domain validation failures and so reduced 
transfer rate, on 9.1 it also causes detection failure. I am not sure 
why detection worked on 9.0, it needs some deeper code comparison, but I 
think it is mostly device problem.

Could you send me output of such commands from FreeBSD 9.0:
camcontrol cmd da0 -vEc "12 00 00 00 24 00" -i 36 - | hd
camcontrol cmd da0 -vEc "12 00 00 00 fe 00" -i 254 - | hd
camcontrol cmd da0 -vEc "12 00 00 01 00 00" -i 256 - | hd

-- 
Alexander Motin