What if the UBI flasher can't skip all-FF pages?

[Artem Bityutskiy]

On Mon, 2011-01-10 at 22:47 +0000, J Barlow wrote:
> Hi everyone,
> 
> I am developing an embedded system with a NAND flash.  We're intending to 
> program all of the NAND flashes in a factory programmer.  I've read "how the UBI 
> flash should work" and I suspect that the UBI flasher doesn't work that way.  
> Specifically, I'm pretty sure it doesn't know how to skip pages containing only 
> FFs.  Unfortunately, the flasher's software is proprietary, not to mention only 
> available in Chinese.  It might well work as expected, but testing this would 
> also be difficult and expensive since the flasher is in a factory in China. 
> 
> I believe that UBIFS is doing the right thing.  I blame the flasher, but I don't 
> think I can do anything about it.

But yes, UBI/UBIFS stack could do better job in this respect, but I do
not have time to implement this. But it you wish to do this - I can only
help you by suggestions.

-- 
Best Regards,
Artem Bityutskiy (Битюцкий Артём)