On Mon, Aug 12, 2024 at 03:17:55PM +0200, Miquel Raynal wrote: > Is this supported in mainline Linux? MTD handles the bad blocks and the > bad block tables, so I don't understand how this hardware feature can > live together with MTD. > > Anyway, you are talking about MMCs, I don't understand why there are > bad blocks, nor what is checking them and when. This is all still very > fuzzy to me, I'm sorry. Yes. The idea of using block2mtd for anything but development seems a bit odd to say it politely. Using it to reinvent bad block management on top of a block device that needs to do that as one of it's fundamental functions seems extremely odd.