From: David Woodhouse <dwmw2@infradead.org>
To: Manoj <manoj23@gmail.com>
Cc: linux-mtd@lists.infradead.org
Subject: Re: jffs2 filesystem/flash data integrity
Date: Sun, 19 Apr 2009 08:33:03 +0100 [thread overview]
Message-ID: <1240126383.3589.46.camel@macbook.infradead.org> (raw)
In-Reply-To: <1c3f4270904181955g28d25ef5nef3cc3001c0d3a06@mail.gmail.com>
On Sat, 2009-04-18 at 19:55 -0700, Manoj wrote:
> Hi,
>
> I have a jffs2 filesystem on NAND flash. After mounting the jffs2 fs,
> I create a 2MB file and make a copy of it using "cp" command. When I
> do a "diff" between two files, the files are same. Now, I unmount the
> fs and re-mount it. When I do a "diff" between the two files, they
> differ. Looking at the difference, I see that around 4K of data in one
> file has 0s in it. This 4K hole can be anywhere in the file. There is
> no issue with a 1MB file.
Please reproduce with 'CONFIG_JFFS2_FS_DEBUG=1', capturing all kernel
message over a serial console. Also, take an image of the flash before
you remount it. Let me have both.
--
dwmw2
next prev parent reply other threads:[~2009-04-19 7:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-19 2:55 jffs2 filesystem/flash data integrity Manoj
2009-04-19 7:33 ` David Woodhouse [this message]
2009-04-20 18:27 ` Manoj
2009-04-21 9:15 ` David Woodhouse
2009-04-28 2:30 ` Manoj
2009-05-01 2:32 ` Manoj
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