From: Jamie Lokier <jamie@shareable.org>
To: Ricard Wanderlof <ricard.wanderlof@axis.com>
Cc: Linux mtd <linux-mtd@lists.infradead.org>
Subject: Re: Some news for this: [PATCH] [MTD] BLOCK_RO: Readonly Block Device Layer Over MTD ?
Date: Thu, 22 Nov 2007 13:08:16 +0000 [thread overview]
Message-ID: <20071122130816.GA9134@shareable.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0711212145070.24710@lnxricardw.se.axis.com>
Ricard Wanderlof wrote:
>
> On Wed, 21 Nov 2007, Josh Boyer wrote:
>
> > > > What problem does the driver solve?
> > > It allow to use cramfs/squashfs/fat in read-only on NAND flash for
> > > embedded systems.
> >
> > Not really. It allows you to put one of those filesystems into
> > NAND using a bad-block aware program initially, and mount it. It
> > doesn't handle run-time bit flips or errors from what I can see.
>
> Won't ECC take care of spurious bit flips?
Are the blocks written back after bit flips are detected?
If not, they will accumulate until they're uncorrectable.
-- Jamie
prev parent reply other threads:[~2007-11-22 13:08 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-21 14:27 Some news for this: [PATCH] [MTD] BLOCK_RO: Readonly Block Device Layer Over MTD ? Gregory CLEMENT
2007-11-21 16:08 ` Jörn Engel
2007-11-21 16:28 ` Gregory CLEMENT
2007-11-21 16:58 ` Josh Boyer
2007-11-21 17:07 ` Gregory CLEMENT
2007-11-21 17:13 ` Josh Boyer
2007-11-21 17:15 ` Jörn Engel
2007-11-21 17:32 ` Gregory CLEMENT
2007-11-21 17:43 ` Vitaly Wool
2007-11-21 17:45 ` Jörn Engel
2007-11-21 17:56 ` Vitaly Wool
2007-11-21 18:04 ` Jörn Engel
2007-11-23 14:35 ` Gregory CLEMENT
2007-11-23 14:45 ` Jörn Engel
2007-11-23 15:06 ` Gregory CLEMENT
2007-11-21 20:46 ` Ricard Wanderlof
2007-11-21 21:32 ` Jörn Engel
2007-11-21 22:33 ` Gregory CLEMENT
2007-11-21 22:54 ` Jörn Engel
2007-11-22 7:58 ` Ricard Wanderlof
2007-11-22 13:26 ` Jörn Engel
2007-11-23 7:42 ` Ricard Wanderlof
2007-11-23 8:18 ` Artem Bityutskiy
2007-11-23 9:08 ` Ricard Wanderlof
2007-11-23 9:21 ` Artem Bityutskiy
2007-11-23 9:28 ` Ricard Wanderlof
2007-11-23 18:40 ` David Brown
2007-11-26 9:42 ` Ricard Wanderlof
2007-11-26 13:58 ` Claudio Lanconelli
2007-11-23 8:19 ` Artem Bityutskiy
2007-11-23 12:46 ` Jörn Engel
2007-11-22 7:58 ` Ricard Wanderlof
2007-11-22 13:08 ` Jamie Lokier [this message]
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