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Message-ID: <4789af9e05090812521d9d687b@mail.gmail.com>
Date: Thu, 8 Sep 2005 13:52:27 -0600
From: Jim Ramsay <jim.ramsay@gmail.com>
Reply-To: jim.ramsay@gmail.com
To: Matthew Dharm <mdharm-kernel@one-eyed-alien.net>,
       linux-usb-users@lists.sourceforge.net,
       Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [Linux-usb-users] Possible bug in usb storage (2.6.11 kernel)
In-Reply-To: <20050908175852.GA3196@one-eyed-alien.net>
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	 <20050908175852.GA3196@one-eyed-alien.net>
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On 9/8/05, Matthew Dharm <mdharm-kernel@one-eyed-alien.net> wrote:
> On Thu, Sep 08, 2005 at 11:14:36AM -0600, Jim Ramsay wrote:
> > I think I have found a possible bug:
> > [...]
> > I suppose the scsi code could be changed to guarantee that
> > srb->request_buffer is page-aligned or cache-aligned, but that seems
> > like the wrong solution for this bug.
> 
> Fixing the SCSI layer is -exactly- the correct solution.  The SCSI layer is
> supposed to guarantee us that those buffers are suitable for DMA'ing, and
> apparently it's violating that promise.

Thanks, I'll check on what buffer I'm actually getting, where it's
allocated, and post back what I find, or how I fixed it.

-- 
Jim Ramsay
"Me fail English?  That's unpossible!"
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