From: Jim Ramsay <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)
Date: Thu, 8 Sep 2005 13:52:27 -0600 [thread overview]
Message-ID: <4789af9e05090812521d9d687b@mail.gmail.com> (raw)
In-Reply-To: <20050908175852.GA3196@one-eyed-alien.net>
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!"
next prev parent reply other threads:[~2005-09-08 19:52 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-08 17:14 Jim Ramsay
2005-09-08 17:58 ` [Linux-usb-users] " Matthew Dharm
2005-09-08 19:52 ` Jim Ramsay [this message]
2005-09-08 20:28 ` Jim Ramsay
2005-09-08 20:40 ` Alan Stern
2005-09-27 13:38 ` Atsushi Nemoto
2005-09-27 14:21 ` Alan Stern
2005-09-27 14:46 ` Atsushi Nemoto
2005-09-27 15:38 ` Alan Stern
2005-09-28 16:27 ` Atsushi Nemoto
2005-09-30 16:48 ` Ralf Baechle
2005-09-08 20:43 ` Matthew Dharm
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