From: Artem Bityutskiy <dedekind@infradead.org>
To: Eirik Aanonsen <eaa@wprmedical.com>
Cc: kernel@avr32linux.org, linux-mtd <linux-mtd@lists.infradead.org>
Subject: RE: UBIFS error CRC calculation on avr32 CPU
Date: Fri, 05 Dec 2008 12:58:09 +0200 [thread overview]
Message-ID: <1228474689.13686.40.camel@sauron> (raw)
In-Reply-To: <2DE39384A09B744FA1E53FD4BF78D430535F4A@dware1013.doorway.loc>
On Fri, 2008-12-05 at 11:46 +0100, Eirik Aanonsen wrote:
> It was correct that there was some faulty implementation of the oob/ecc handling.
> This is ran on a SLC Samsung NAND flash(2GByte).
It is weird that you do not have sub-pages if this is SLC. You waste
4KiB per eraseblock because of this. Here you may find what is sub-page:
http://www.linux-mtd.infradead.org/faq/ubi.html#L_find_min_io_size
If your flash allows sub-pages, I'd recommend to support them.
> Any hint to what to look into next would be great.
No, not really. You should dig your NAND driver.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
prev parent reply other threads:[~2008-12-05 11:00 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-01 3:49 [ARM] pxa: explicit #include <mach/dma.h> in various drivers Eric Miao
2008-12-01 12:33 ` UBIFS error CRC calculation on avr32 CPU Eirik Aanonsen
2008-12-02 8:44 ` Artem Bityutskiy
2008-12-02 12:59 ` Eirik Aanonsen
2008-12-02 15:15 ` Artem Bityutskiy
2008-12-03 7:55 ` Eirik Aanonsen
2008-12-03 9:25 ` Artem Bityutskiy
2008-12-05 10:46 ` Eirik Aanonsen
2008-12-05 10:58 ` Artem Bityutskiy [this message]
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