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From: Raphael Hertzog <eng@eipm.ch>
To: David Woodhouse <dwmw2@infradead.org>
Cc: Henrik Nordstrom <hno@marasystems.com>, linux-mtd@lists.infradead.org
Subject: Re: NFTL not recognizing disk on chip in some cases
Date: 30 Jan 2003 09:05:22 +0100	[thread overview]
Message-ID: <1043913922.556.4.camel@localhost> (raw)
In-Reply-To: <Pine.LNX.4.44.0301292238560.4791-100000@imladris.demon.co.uk>

Am Mit, 2003-01-29 um 23.41 schrieb David Woodhouse:
> Does one of your files have 'ANAND' at the start of it (or at an offset of 
> n*512 bytes withing the file? :)

Yes.

$ find . -type f | xargs grep -l ANAND
./root/lib/modules/2.4.19-eipm/kernel/drivers/block/doc.o
./root/lib/modules/2.4.19-eipm/kernel/drivers/block/doc/doc.o
./root/usr/lib/grub/i386-pc/stage2
./root/usr/lib/grub/i386-pc/grub_firmware

After inspection, grub_firmware does have 'ANAND' at offset 87040 (170 *
512).

> That may get seen as an 'extra' NFTL media header sector; we should do 
> more sanity checks and refrain from looking inside an already-detected 
> NFTL partition.

I'm happy to test any patch since I can reproduce the problem here very
regularly ... :-)

> Because in the first case the 'ANAND' went somewhere other than the first 
> page of an erase block, so wasn't seen as an 'extra' media header? Taking 
> raw dumps of the flash would confirm this.

I'll do that to check it. 

Cheers,
-- 
Raphaël Hertzog - EIPM SA

  reply	other threads:[~2003-01-30  7:35 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-01-29 12:47 NFTL not recognizing disk on chip in some cases Raphael Hertzog
2003-01-29 14:48 ` Henrik Nordstrom
2003-01-29 16:42   ` Raphael Hertzog
2003-01-29 17:05     ` Henrik Nordstrom
2003-01-29 18:30     ` Mark Meade
2003-01-29 22:41     ` David Woodhouse
2003-01-30  8:05       ` Raphael Hertzog [this message]
2003-01-30  8:19         ` David Woodhouse
2003-01-30 10:56           ` Raphael Hertzog
2003-01-30 10:14         ` Raphael Hertzog

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