[Yaffs] Sequential blocks marked bad

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Author: Wagner Scott (ST-IN/ENG1.1)
Date:  
To: yaffs
Subject: [Yaffs] Sequential blocks marked bad
Hi all,

I happened to read " ... And it seems there are lots of blocks that are
marked bad afterwards." in a recent post, followed by Charles' comment
that "Bad blocks are usually a result of some lower level issue with the
device driver hosing the spare bytes."

I have had intermittent problems for awhile now with yaffs (v1.27, small
page mode) going on a spree of sequentially marking all free blocks bad.
I have suspected that this is the result of either a lower-level device
driver or hardware issue, but have not been able to gather much data
because the issue is so sporadic.

Can anyone give me some pointers as to where I can find more info,
diagnostics, or work anyone has done on this type of problem in the
past? I would really like to track it down and fix it.

Thanks!

Scott Wagner
Senior Software Engineer
Bosch Security Systems, Inc.