jffs2 filesystem/flash data integrity

[Manoj]

Hi David,

When I set 'CONFIG_JFFS2_FS_DEBUG=1', the problem goes away :-(.  With
that flag set to 0, I occasionally see
"JFFS2 notice: (133) jffs2_get_inode_nodes: Node header CRC failed at
xxxx" messages. Should I worry about it?

When I make a copy of the file, does it get written to the flash right
away or does the write happen later? I am doing a "sync" after the
"cp" command. An interesting thing to note is that the 0s can appear
in both original and the copied file.

As a separate test, I write 3MB of data and read it back with
mtd_debug utility; the compare passes.

Thanks.


On Tue, Apr 21, 2009 at 2:15 AM, David Woodhouse <dwmw2 at infradead.org> wrote:
> On Mon, 2009-04-20 at 11:27 -0700, Manoj wrote:
>> How do you want me to give the image that's on the flash? It is in
>> megabytes. Or do you want me to give the output of jffs2dump for the
>> image?
>
> The output of jffs2dump might be sufficient, but the image itself is
> probably best, if you can. Stick it on a web/ftp site somewhere?
>
> --
> dwmw2
>
>