From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lilium.sigma-star.at ([109.75.188.150]) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1etxSX-0006RQ-Vf for linux-mtd@lists.infradead.org; Thu, 08 Mar 2018 15:28:08 +0000 From: Richard Weinberger To: dedekind1@gmail.com Cc: Linus Walleij , linux-mtd@lists.infradead.org, "linux-kernel@vger.kernel.org" , Cyrille Pitchen , Mark Vasut , Boris BREZILLON , Brian Norris , David Woodhouse , tharvey@gateworks.com, stable , Ulf Hansson Subject: Re: [PATCH] ubi: Reject MLC NAND Date: Thu, 08 Mar 2018 16:28:50 +0100 Message-ID: <10429741.dU3vzh71GH@blindfold> In-Reply-To: <1520521275.20980.41.camel@gmail.com> References: <20180303104554.5958-1-richard@nod.at> <3797589.z8fAhu5iDP@blindfold> <1520521275.20980.41.camel@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Artem, Am Donnerstag, 8. M=E4rz 2018, 16:01:15 CET schrieb Artem Bityutskiy: > On Thu, 2018-03-08 at 15:43 +0100, Richard Weinberger wrote: > > As stated by David Woodhouse, it was a huge mistake by UBI to not > > reject MLC > > NAND from the very beginning. >=20 > Correction: when we were developing UBI/UBIFS and upstreamed them, MLC > was widely used yet we did not really know about it. So there was > nothing to reject yet. You mean *not* widely used? =20 > The mistake is that we did not add the reject timely. When people > started reporting MLC issues we were answering that UBI/UBIFS stack > needs more work to make MLC safe to use, and we hoped someone would do > the work. True. TBH Boris and I also thought that adding MLC support is not a that big deal= =2E.. Thanks, //richard