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Re: [ts-7000] Re: yaffs tragedy: no more eraased blocks

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Subject: Re: [ts-7000] Re: yaffs tragedy: no more eraased blocks
From: Eddie Dawydiuk <>
Date: Wed, 19 Aug 2009 10:54:59 -0700
Hello,

> I'm not sure what you want me to provide. The board will still boot but I 
> only have console and it keeps spewing "yaffs tragedy" to that.

Basically what I'm asking for is, if you can tell me how to reproduce the 
problems you are reporting. That is if I take a stock board, what needs to be 
done to make large amounts of blocks to be marked bad as you've reported. As I 
mentioned earlier the kernel hasn't changed in several years, and we've done 
quite a bit of testing on the Yaffs code base we are shipping and we have been 
unable to reproduce any failures. If our tests are missing a problem, we would 
be interested to know what needs to be done to cause the problem to show up.

If you'd like you can contact me off list and I will provide you with an RMA so 
your board can be returned to be restored to the factory default settings with 
a 
new Nand flash chip.

> Since I don't really understand what conditions produce the bad block markage 
> I can only guess like you. I can't provide do steps 1,2,3 
 > "happens every time" bug report. Sorry.

I'll pass your report along to my manager, although I can tell you from past 
experience he will be much more likely to assign an engineer to look into your 
bug report if you can provide information on how to recreate the bug you are 
reporting.

A few more questions. How many boards have seen this problem on? Have you seen 
this problem on any boards that have never run a non TS kernel(I believe you 
mentioned running a 2.6 kernel at one point)?

-- 
Best Regards,
________________________________________________________________
  Eddie Dawydiuk, Technologic Systems | voice:  (480) 837-5200
  16525 East Laser Drive              | fax:    (480) 837-5300
  Fountain Hills, AZ 85268            | web: www.embeddedARM.com


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