From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pa0-x234.google.com ([2607:f8b0:400e:c03::234]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZtNKa-0006PC-OI for linux-mtd@lists.infradead.org; Mon, 02 Nov 2015 22:12:01 +0000 Received: by pabfh17 with SMTP id fh17so36465733pab.0 for ; Mon, 02 Nov 2015 14:11:39 -0800 (PST) Date: Mon, 2 Nov 2015 14:11:36 -0800 From: Brian Norris To: Richard Weinberger Cc: Tim Harvey , Artem Bityutskiy , Adrian Hunter , linux-mtd@lists.infradead.org, Elie De Brauwer , Huang Shijie , Boris Brezillon Subject: Re: UBIFS corruption after power cut - possibly unstable bits issue? Message-ID: <20151102221136.GF7274@google.com> References: <562E8697.50207@nod.at> <562E9E0B.5030204@nod.at> <562FD60E.9020807@nod.at> <5637D649.8060802@nod.at> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5637D649.8060802@nod.at> List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , + Boris On Mon, Nov 02, 2015 at 10:31:53PM +0100, Richard Weinberger wrote: > Am 02.11.2015 um 21:31 schrieb Tim Harvey: > > >> I've cc'd Huang, Elie, and Brian who were involved in the patch to > >> detect bit-flips in gpmi-nand.c reads - perhaps they have some more > >> ideas. I find it interesting that in one case that patch resolves the > >> issue and in the other it does not. > > Yeah, good idea! Sorry, I don't have much time to care about gpmi-nand right now. I recall that there was ugly support for detecting bitflips in erased pages posted at some point (in case that's relevant; didn't read the whole essay), but that never got merged, and Huang left Freescale. I also recall Boris struggled with that driver at some point. Perhaps he can be persuaded to care. Brian