bit flip

Matt Reimer mattjreimer at
Wed Oct 10 13:58:45 EDT 2007

On 10/10/07, catboat at <catboat at> wrote:
> Quoting David Woodhouse <dwmw2 at>:
> > On Wed, 2007-10-03 at 14:32 -0500, catboat at wrote:
> > > A NAND card flipped a bit and caused a data CRC problem in a data node.
> > > When I cat the file, this region is zeroes. cat exits with rc 0.

How big were the chunks of zeroes? I'm seeing something similar here
on a 128KB/2KB NAND flash part, where a 4KB chunk incorrectly reads as

Is there some kind of utility to map from a jffs2 inode to an offset
in flash? That would help me track down the corruption I'm seeing.


More information about the linux-mtd mailing list