From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lpp01m010-f49.google.com ([209.85.215.49]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1SJ29n-0003es-DT for linux-mtd@lists.infradead.org; Sat, 14 Apr 2012 12:32:47 +0000 Received: by lagy4 with SMTP id y4so3468006lag.36 for ; Sat, 14 Apr 2012 05:32:44 -0700 (PDT) Subject: Re: UBI/UBIFS issue: corrupt empty space => switched to read-only mode From: Artem Bityutskiy To: Ivan Djelic , Matthieu CASTET Date: Sat, 14 Apr 2012 15:32:40 +0300 In-Reply-To: <20120414121105.GB6207@parrot.com> References: <1332239983.11468.14.camel@sauron.fi.intel.com> <1334330445.2544.83.camel@sauron.fi.intel.com> <20120414121105.GB6207@parrot.com> Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-lf6SfGktETpF3wqIxmHr" Message-ID: <1334406762.2263.35.camel@koala> Mime-Version: 1.0 Cc: "linux-mtd@lists.infradead.org" , Matteo Mattei Reply-To: dedekind1@gmail.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --=-lf6SfGktETpF3wqIxmHr Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sat, 2012-04-14 at 14:11 +0200, Ivan Djelic wrote: > On Fri, Apr 13, 2012 at 04:20:45PM +0100, Artem Bityutskiy wrote: > > > > On Fri, 2012-03-16 at 17:14 +0100, Matteo Mattei wrote: > > > > > Hi guys, > > > > >=20 > > > > > I am working hard on UBIFS to make it works on 2.6.32 and OMAP353= 0. > > > > >=20 > > > > > I already posted some requests to TI forum but I have no answers = up to now: > > > > > http://e2e.ti.com/support/embedded/linux/f/354/t/171839.aspx#6278= 75 >=20 > Hello Matteo, >=20 > I have been using a very similar setup (2.6.32 + OMAP3630), and I added B= CH support > (8-bit correction) to the mtd omap2 driver, using the BCH library (not TI= implementation). > My patch corrects bitflips on empty space (erased pages), so that UBIFS d= oes not choke on corrupted empty space. >=20 > I posted a patch a while ago, albeit for a more recent kernel version: > http://lists.infradead.org/pipermail/linux-mtd/2011-October/038207.html > bit I did not get much feedback from TI maintainers. >=20 > If you have some trouble backporting this patch to your kernel, let me kn= ow, I may > have an old 2.6.32 version of the patch somewhere on my hdd :). If we have a "tested-by" - we can make them go in via the MTD tree. It looks like Matthieu successfully tested them? --=20 Best Regards, Artem Bityutskiy --=-lf6SfGktETpF3wqIxmHr Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEcBAABAgAGBQJPiW5oAAoJEJtuLFy+q7fetzkH/iOk1VSIMtngMOhsuALYXHSD v6cFmH8R1OZHVqwObTCPGfiEa7HHizDETzq9IxXcO8FPzsn3ez6jQSBt9B61XBAP 1+BCo0sKeouTK9uGH9WaUcJy/s/m/1hbBZrKeqT6y2YW4RTexvsWE8eqGX3sf1pU /UAr3ptlKtOcRvGc/rukLMKnsyNc7LHHPUW3OdE2sg5srzRw1/KKsleNeLhbETh7 q2RNoF1oT27lt4ZoZh+Jhh3/SvxhXMdfLNoNqh1Za4JcJtqn8Nhg0IKfWI1X12HV 1Yzv9fqGtDTjBOGBwszTs4sAHSlWlvsk8HeBgzgO2wC8Y6g64S6Jdokxp9sRK/c= =qKJN -----END PGP SIGNATURE----- --=-lf6SfGktETpF3wqIxmHr--