Re: [Linux-usb-users] Possible bug in usb storage (2.6.11 kernel)
From: Matthew Dharm
Date: Thu Sep 08 2005 - 12:59:51 EST
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.
Matt
--
Matthew Dharm Home: mdharm-usb@xxxxxxxxxxxxxxxxxx
Maintainer, Linux USB Mass Storage Driver
What, are you one of those Microsoft-bashing Linux freaks?
-- Customer to Greg
User Friendly, 2/10/1999
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