Hi,
> > How YAFFS and YAFFS2 behave?
>
> YAFFS is being more cautious than that, which means that in theory YAFFS will
> lose blocks faster than they recommend. However from accelerated lifetime
> testing I've done, I have not seen this to be a practical problem since ECC
> errors are so rare once the problematic blocks have been removed.
There is another aspect to that - I've seen yaffs1 leak blocks under power
cycling conditions. I suspect power failures were producing incomplete
write/erase cycles and ecc errors as a consequence. That led to retirement of
good blocks that had bad luck to be written to during power down.
I would be interested to know if anybody else has seen this behavior.
Sergei
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