Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964905AbVIHR66 (ORCPT ); Thu, 8 Sep 2005 13:58:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964913AbVIHR66 (ORCPT ); Thu, 8 Sep 2005 13:58:58 -0400 Received: from multivac.one-eyed-alien.net ([64.169.228.101]:26852 "EHLO multivac.one-eyed-alien.net") by vger.kernel.org with ESMTP id S964905AbVIHR65 (ORCPT ); Thu, 8 Sep 2005 13:58:57 -0400 Date: Thu, 8 Sep 2005 10:58:52 -0700 From: Matthew Dharm To: Jim Ramsay Cc: linux-usb-users@lists.sourceforge.net, Linux Kernel Subject: Re: [Linux-usb-users] Possible bug in usb storage (2.6.11 kernel) Message-ID: <20050908175852.GA3196@one-eyed-alien.net> Mail-Followup-To: Jim Ramsay , linux-usb-users@lists.sourceforge.net, Linux Kernel References: <4789af9e05090810142bd3531d@mail.gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="y0ulUmNC+osPPQO6" Content-Disposition: inline In-Reply-To: <4789af9e05090810142bd3531d@mail.gmail.com> User-Agent: Mutt/1.4.1i Organization: One Eyed Alien Networks X-Copyright: (C) 2005 Matthew Dharm, all rights reserved. X-Message-Flag: Get a real e-mail client. http://www.mutt.org/ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1399 Lines: 46 --y0ulUmNC+osPPQO6 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable 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 --=20 Matthew Dharm Home: mdharm-usb@one-eyed-alien.= net=20 Maintainer, Linux USB Mass Storage Driver What, are you one of those Microsoft-bashing Linux freaks? -- Customer to Greg User Friendly, 2/10/1999 --y0ulUmNC+osPPQO6 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFDIHvcHL9iwnUZqnkRAtfIAJ4n/UXA19mFtRtH+SKPX++JmM3nZACgsWWd mfWFqi9Sb5ToTGtvddmJinA= =S+00 -----END PGP SIGNATURE----- --y0ulUmNC+osPPQO6-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/