From: Boris Brezillon <boris.brezillon@bootlin.com>
To: Richard Weinberger <richard@nod.at>
Cc: Olivier Schonken <olivier.schonken@gmail.com>,
David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
linux-mtd@lists.infradead.org,
Marek Vasut <marek.vasut@gmail.com>
Subject: Re: Atmel Nand PMECC UBI ECC issue
Date: Wed, 28 Mar 2018 10:32:04 +0200 [thread overview]
Message-ID: <20180328103204.5272349a@bbrezillon> (raw)
In-Reply-To: <3546894.3QeRhpBW0o@blindfold>
On Tue, 27 Mar 2018 16:08:46 +0200
Richard Weinberger <richard@nod.at> wrote:
> Oliver,
>
> Am Dienstag, 27. März 2018, 10:28:52 CEST schrieb Olivier Schonken:
> > Hi Richard
> >
> > The bytes in question is at offset 36c90.
>
> Okay. At this offset we have a UBIFS data node of length 1477.
> One bit of the UBIFS magic changed. 0x30 instead of 0x31
> Fun fact, the UBIFS CRC32 is correct. UBIFS magic and the CRC32 are not
> covered by the CRC.
> So, really just one bit changed, in the magic.
Looks like this problem was caused by a bug in the atmel NFC driver.
Fix is available here [1].
Regards,
Boris
[1]http://patchwork.ozlabs.org/patch/891725/
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
prev parent reply other threads:[~2018-03-28 8:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-26 14:56 Atmel Nand PMECC UBI ECC issue Olivier Schonken
2018-03-26 20:07 ` Richard Weinberger
2018-03-27 8:28 ` Olivier Schonken
2018-03-27 14:08 ` Richard Weinberger
2018-03-28 8:32 ` Boris Brezillon [this message]
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