Erase unit header corrupted when using FTL

[David Woodhouse]

On Sun, 5 Nov 2000, Brian Kuschak wrote:

> I'm having a major problem when using the FTL.  I format and mount a
> filesystem on the FTL device, and do this:
> 
>   - copy a file onto the device
>   - sync
>   - remove the file 
>   - sync
>   - copy another file onto the device
>   - sync.
> 
> The file is ~84KB and the sector size is 128KB.  The second copy causes the
> FTL to start erasing the first erase unit.  At this point, the erase always
> fails.  Seems like the erase unit is not getting a valid header written to
> it after being erased.  I can verify that the erase callback is being
> called.  Any ideas?

Probably because we're sleeping in the request function. We need to
transplant the kernel_thread fix from the mtdblock code.

Are you using this on a PCMCIA device? If not, and if you're not in the
Free World, then you're probably breaking the law. 

You might consider using JFFS instead.


-- 
dwmw2




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