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To: Wakko Warner <wakko@animx.eu.org>
cc: linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org
Subject: Re: 2.4.3-pre2 aic7xxx crash on alpha 
In-Reply-To: Your message of "Wed, 07 Mar 2001 21:09:43 EST."
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Date: Wed, 07 Mar 2001 21:45:54 -0700
From: "Justin T. Gibbs" <gibbs@scsiguy.com>
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>(scsi1:A:0:0): data overrun detected in Data-out phase.  Tag == 0x36.
>(scsi1:A:0:0): Have seen Data Phase.  Length = 0.  NumSGs = 0.

As I mentioned to you the last time you brought up this problem, I
don't believe that this is caused by the aic7xxx driver, but the
aic7xxx driver may be the first to notice the corruption.  Somehow
the system is generating disk requests with a zero length buffer
provided to the controller.  That is the cause of the data-overruns.
Perhaps there is a problem with the dma mapping operations on your
particular type of Alpha?

--
Justin

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