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From: Richard Weinberger <richard@nod.at>
To: Olivier Schonken <olivier.schonken@gmail.com>
Cc: linux-mtd@lists.infradead.org,
	David Woodhouse <dwmw2@infradead.org>,
	Brian Norris <computersforpeace@gmail.com>,
	Boris Brezillon <boris.brezillon@bootlin.com>,
	Marek Vasut <marek.vasut@gmail.com>
Subject: Re: Atmel Nand PMECC UBI ECC issue
Date: Tue, 27 Mar 2018 16:08:46 +0200	[thread overview]
Message-ID: <3546894.3QeRhpBW0o@blindfold> (raw)
In-Reply-To: <CALdGsk++QA-mHmQx+L6qumt7xaXicfdqC=iBhmda7vYB+-bNpg@mail.gmail.com>

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.

Thanks,
//richard

  reply	other threads:[~2018-03-27 14:09 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 [this message]
2018-03-28  8:32       ` Boris Brezillon

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