Re: Flash_eraseall -j and cowardly refusing to mount

[Jeff Hane <jhane@mobilygen.com>]

 But doesn't this only fix the case where you have contiguous 8 bytes to
write the cleanmarker?  flash_eraseall -j uses MTD_PLACE to write the
cleanmarker BUT jffs2 uses MTD_AUTO to read the cleanmarker.
 For example, if your oob area has byte 0 as the bad block indicator and
bytes 8-10 have ecc, there are only 7 consecutive free bytes.
flash_eraseall -j will only write 7 bytes so jffs2 will fail when
mounting the filesystem because it will read 8 bytes.  The 8th byte,
which will be byte 12, will still be FF.
  It seems there should be an ioctl that would allow one to read/write
the oob area using MTD_AUTO???

jeff

On Mon, 2008-01-07 at 15:00 +0000, David Woodhouse wrote:
> On Mon, 2008-01-07 at 12:16 +0000, Phillips, Owain wrote:
> > Hi linux-mtd@lists.infradead.org,
> > 
> > We just upgraded to mtd-utils-1.0.1 on our 2.6.23 target and I am
> > getting problems with flash_eraseall -j where the mount fails.
> 
> It ought to be fixed by this:
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=09b3fba5
>