I could be wrong, but I think JFFS2 uses the OOB. The JFFS2 Out of Band usage section in this link mention about it http://www.linux-mtd.infradead.org/doc/nand.html Ceco Charles Manning wrote: On Friday 24 November 2006 12:13, goog long wrote: > Thanks for your info, but I have no problem at all with JFFS2 using the > same NAND driver. I run the full test on JFFS2 without any error. > > Ceco JFFS2 does not use OOB, so any OOB corruptions don't break JFFS2. > > Charles Manning wrote: This, and all your > previous recent problems, look like issues in the nand driver. > > Allocator out can only happen when a lot of blocks all seem to go bad, or > there are a lot of nand errors. This is extremely unlikely with real > flash, but is quite possible if the software is being told that the blocks > are bad. > > My suggestion is to add more tracing to the lower levels (including the > nand drivers) to figure out what is getting messed up. > > -- CHarles --------------------------------- Check out the all-new Yahoo! Mail beta - Fire up a more powerful email and get things done faster.