From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262202AbTKHAdd (ORCPT ); Fri, 7 Nov 2003 19:33:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261473AbTKGWGE (ORCPT ); Fri, 7 Nov 2003 17:06:04 -0500 Received: from smtp2.clb.oleane.net ([213.56.31.18]:42467 "EHLO smtp2.clb.oleane.net") by vger.kernel.org with ESMTP id S263950AbTKGIvB (ORCPT ); Fri, 7 Nov 2003 03:51:01 -0500 Subject: Re: [Bug 1412] Copy from USB1 CF/SM reader stalls, no actual content is read (only directory structure) From: Nicolas Mailhot To: Jens Axboe Cc: Alan Stern , USB development list , linux-kernel@vger.kernel.org In-Reply-To: <20031107082439.GB504@suse.de> References: <20031105084002.GX1477@suse.de> <20031107082439.GB504@suse.de> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-CbHSyOhnXxCmM/2GyR7a" Organization: Adresse personnelle Message-Id: <1068195038.21576.1.camel@ulysse.olympe.o2t> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 (1.4.5-7) Date: Fri, 07 Nov 2003 09:50:39 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --=-CbHSyOhnXxCmM/2GyR7a Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: quoted-printable Le ven 07/11/2003 =E0 09:24, Jens Axboe a =E9crit : > On Wed, Nov 05 2003, Alan Stern wrote: > > In any case, it quite likely _does_ point to a driver bug. But since > > sddr09_read_data() was handed this sg entry and didn't change it, if th= ere > > is such a bug it must lie in a higher-level driver. Maybe the scsi lay= er,=20 > > maybe the block layer, maybe the memory-management system, maybe the fi= le=20 > > system. That was my original point. >=20 > Well, the sg entry looks perfectly valid. And that was my original > point :-). And that is why I said it looks like a driver bug, not in > upper layers. How much memory did the system that crashed have? If the > system has highmem, try testing with scsi_calculate_bounce_limit() > unconditionally returning BLK_BOUNCE_HIGH. The system has 1 GiB of memory, ie just enough to make stuff like radeonfb fail Cheers, --=20 Nicolas Mailhot --=-CbHSyOhnXxCmM/2GyR7a Content-Type: application/pgp-signature; name=signature.asc Content-Description: Ceci est une partie de message =?ISO-8859-1?Q?num=E9riquement?= =?ISO-8859-1?Q?_sign=E9e=2E?= -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iD8DBQA/q1zdI2bVKDsp8g0RAjZ2AJ9hTmXjfxCk2rZM7gGaCDfdUvEQSQCfcHXg aegkZJ4Nu8yOdqbRSWJtAfk= =58fz -----END PGP SIGNATURE----- --=-CbHSyOhnXxCmM/2GyR7a--