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From: Timo Teras <timo.teras@solidboot.com>
To: Kyungmin Park <kyungmin.park@samsung.com>
Cc: "linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
	David Woodhouse <dwmw2@infradead.org>,
	Timo Teras <timo.teras@solidboot.com>
Subject: Re: OneNAND: Update OOB free table
Date: Fri, 15 Dec 2006 10:33:11 +0200	[thread overview]
Message-ID: <20061215083311.GA5793@mail.solidboot.com> (raw)
In-Reply-To: <3761211.13011166150326518.JavaMail.weblogic@ep_ml08>

On Fri, Dec 15, 2006 at 02:38:17AM +0000, Kyungmin Park wrote:
> > Tested. This breaks reading OOB area and the clean marker from there. After
> > OOB has been written without ECC it must be read without ECC too or
> >we start to get ECC errors.
> 
> Yes, you're right. and the current code don't check the read error.
> It's similay problem in onenand_wait which can't report the read/write/erase error.
> 
> I think I need to change the logic.
> 
> First, fix the onenand_wait error report
> Second, check the read error.
> 
> Anyway come back to main topic
> 
> How about the the change the JFFS2 logic to skip the eccpos in cleanmark check.
> In onenand_oob_64, it describes the eccpos. So the JFFS2 skip the eccpos
> 
> Is it possible?

I suppose it's worth asking from JFFS2 people. The free OOB usage seems to be
a bit broken in JFFS2 (it only uses the first pos/len pair of the OOB free
table. 

Cheers,
  Timo

  reply	other threads:[~2006-12-15  8:34 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-12-15  2:38 OneNAND: Update OOB free table Kyungmin Park
2006-12-15  8:33 ` Timo Teras [this message]
2006-12-15 10:41 ` Artem Bityutskiy
2006-12-15 11:19   ` Timo Teras
  -- strict thread matches above, loose matches on Subject: below --
2006-12-26  7:15 Kyungmin Park
2006-12-22  1:52 Kyungmin Park
2006-12-22  9:17 ` Artem Bityutskiy
2006-12-18  4:24 Kyungmin Park
2006-12-18 14:23 ` Artem Bityutskiy
2006-12-21 11:15 ` Artem Bityutskiy
2006-12-21 12:35   ` Artem Bityutskiy
2006-12-08  0:11 Kyungmin Park
2006-12-08  8:43 ` Timo Teras
2006-12-11 12:20 ` Timo Teras

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