Understanding jffs2 warning message

[Jean-Philippe Francois]

On Tue, 2005-07-19 at 14:35, Jean-Philippe Francois wrote:
> Hi,
> 
> I am doing some test on a JFFS2 file system.
> It is installed on a Macronix Flash 29LV320, with top boot block.
> The part are cfi probed, and it works (almost) fine.
> 
> I am doing some tar/untar loop [1]. Every six or seven loop, I have a
> serie of 8 warning messages :
> 
> Node totlen on flash (0xffffffff) != totlen in node ref (0x00001040)
> Node totlen on flash (0xffffffff) != totlen in node ref (0x00001044)
> Node totlen on flash (0xffffffff) != totlen in node ref (0x00001044)
> Node totlen on flash (0xffffffff) != totlen in node ref (0x00001044)
> Node totlen on flash (0xffffffff) != totlen in node ref (0x00001044)
> Node totlen on flash (0xffffffff) != totlen in node ref (0x00001044)
> Node totlen on flash (0xffffffff) != totlen in node ref (0x00001044)
> Node totlen on flash (0xffffffff) != totlen in node ref (0x00000768)
> 
> I looked at the code, but I don't understand what is the meaning of
> these messages.
> Do you think it can be related to the Top Boot Block layout of this
> flash (ie last 64 k sector is replaced by 8 8k sector) ?
> I might be wrong, but I think the sector layout and erase size is taken
> into account by CFI probing ?

Looking into the archive, I think I am in the case described by [1].
The driver know about the various erase regions, but doesn't transmit
this info to partition level. What is the status of the patch in [1] ?
It is not part of the mtd code in 2.6.12 kernel.

Regards,

JP Francois

[1]
http://lists.infradead.org/pipermail/linux-mtd/2004-December/011320.html