Some news for this: [PATCH] [MTD] BLOCK_RO: Readonly Block Device Layer Over MTD ?

[Jamie Lokier]

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