Wear-leveling peculiarities

valent.turkovic at gmail.com valent.turkovic at gmail.com
Tue May 19 02:17:21 PDT 2015


On 18 May 2015 at 15:53, Johannes Bauer <weolanwaybqm at spornkuller.de> wrote:
> Hello list,
> The units have been deployed for three years now. Recently, we've been
> seeing units fail more often. This warranted some investigation. I pulled dd
> images of the relevant /dev/mtd device (mtd4 in my case) and wrote a small
> Python script that evaluated the UBIFS LEB headers, in particular the erase
> count. I expected to see a uniform distribution of erases all around the
> flash.

Can you please share your python script, it would probably be helpful
to other people as well.
Thanks.



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