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Re: [ts-7000] Re: TS-7260 yaffs2/NAND problem

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Subject: Re: [ts-7000] Re: TS-7260 yaffs2/NAND problem
From: Gary Wicker <>
Date: Thu, 23 Apr 2009 20:12:23 -0700
Richard,

I quit using YAFFS on my TS-7250s because it kept marking blocks as
bad, and I was never able to figure out how to unmark them.  I ended
up with several unusable boards as a result.  As a result I switched
to JFFS2 and haven't had any problems since.

Gary

On Thu, Apr 23, 2009 at 2:45 PM, Richard Williams
<> wrote:
>
>> >
>> >
>> > The log shows all blocks 814-1000 are unusable and some 39-104 unusable.
>>
>> That would seem to correspond to the 21% usage you noted assuming yaffs is 
>> reporting % of total size.
>>
>> The question is whether these retired blocks are really fautly or whether 
>> some bug or electrical defect has caused them to be marked as bad.
>>
>> How old is this board and what root fs is it running? Is it still on factory 
>> TS linux and kernel?
>>
>> How much use did it get before you set up everything is tmpfs?
>>
>
> It's running a cut down version of the oiginal rootfs that comes with the 
> board and ts7400_tskernel-jul162008.tar.gz to get proper support for YAFFS2.
>
> I've been running tmpfs right from the beginning so it hasn't been thrashed.
>
> I have another unit that has been running the same software for a week and 
> it's got this in the log which is a bit worrying. I get the same bad blocks 
> mentioned each time I boot the board. Does this mean that there are only 3 
> bad blocks (312,878 and 110)? Why is block 110 be retired 50 times at each 
> boot?
>
> yaffs: dev is 7937 name is "1f:01"
> yaffs: Attempting MTD mount on 31.1, "1f:01"
> block 312 is bad
> block 878 is bad
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> Partially written block 110 being set for retirement
> VFS: Mounted root (yaffs2 filesystem).
>
> Richard
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>


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