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From: "Justin T. Gibbs" <gibbs@scsiguy.com>
To: Duncan Gibb <duncangibb@uk.dmgworldmedia.com>,
	Thomas Beutin <tyrone@laokoon.IN-Berlin.DE>
Cc: linux-scsi@vger.kernel.org
Subject: Re: AIC7902 lockups on Intel SMP (Re: HD somtimes hanging)
Date: Thu, 24 Jul 2003 11:47:04 -0600	[thread overview]
Message-ID: <1382692704.1059068823@aslan.btc.adaptec.com> (raw)
In-Reply-To: <1059057411.6798.30.camel@carwash.duncangibb.com>

> If I try to scan something, Xsane hangs for a while, then recovers OK. 
> But if I put a CD in the Yamaha drive, anything which touches the scsi
> subsystem from then on will hang.

It looks like you have a very flakey bus.  The BSY line is probably
glitching.  In the trace you provided, we successfully selected the
device at ID 3 and are waiting for the target to take us to the first
phase.  The REQ for that phase never occurs and in fact the BSY line
is not always driven.  Very, very weird.  The target controls both
the REQ and BSY lines, so this is either a problem with the target,
your cabling, or your termination.

--
Justin


  parent reply	other threads:[~2003-07-24 17:30 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-24 13:12 HD somtimes hanging Thomas Beutin
2003-07-24 14:36 ` AIC7902 lockups on Intel SMP (Re: HD somtimes hanging) Duncan Gibb
2003-07-24 15:44   ` Thomas Beutin
2003-07-24 17:02     ` Duncan Gibb
2003-07-24 21:58     ` Justin T. Gibbs
2003-07-24 17:47   ` Justin T. Gibbs [this message]
2003-07-24 19:38     ` Thomas Beutin
2003-07-24 21:58       ` Justin T. Gibbs
2003-07-25 13:51 Cress, Andrew R

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