linux-kernel - Re: [PATCH] ubi: Reject MLC NAND

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Message-ID: <1520436263.2674.35.camel@gmail.com>
Date:   Wed, 07 Mar 2018 17:24:23 +0200
From:   Artem Bityutskiy <dedekind1@...il.com>
To:     Richard Weinberger <richard@....at>, Pavel Machek <pavel@....cz>
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        cyrille.pitchen@...ev4u.fr, marek.vasut@...il.com,
        boris.brezillon@...e-electrons.com, computersforpeace@...il.com,
        dwmw2@...radead.org, tharvey@...eworks.com, stable@...r.kernel.org
Subject: Re: [PATCH] ubi: Reject MLC NAND

On Wed, 2018-03-07 at 09:01 +0100, Richard Weinberger wrote:
> Pavel,
> 
> Am Mittwoch, 7. März 2018, 00:18:05 CET schrieb Pavel Machek:
> > On Sat 2018-03-03 11:45:54, Richard Weinberger wrote:
> > > While UBI and UBIFS seem to work at first sight with MLC NAND,
> > > you will
> > > most likely lose all your data upon a power-cut or due to
> > > read/write
> > > disturb.
> > > In order to protect users from bad surprises, refuse to attach to
> > > MLC
> > > NAND.
> > > 
> > > Cc: stable@...r.kernel.org
> > 
> > That sounds like _really_ bad idea for stable. All it does is it
> > removes support for hardware that somehow works.
> 
> MLC is not supported and does not work. Full stop.

Ack.