a UBIFS image makes task pdflush blocked > 120 seconds

Norbert van Bolhuis nvbolhuis at aimvalley.nl
Tue Nov 17 05:45:38 EST 2009


Jamie Lokier wrote:

> According to datasheets, the flash I'm using with cmdset_0002 supports
> multi-block erase, although I don't think the driver does at the moment.
> 
> Multi-block erase works by giving the chip a list of blocks to erase,
> or even the whole flash, and then it does them simultaneously.
> 
> Could this solve your problem?
> 
> -- Jamie
> 


I doubt it.

Afaik multi-block erasure doesn't speed up things. So for n blocks you'd still have
to wait n x block-erase-time (in this case erase-suspend whould be even more important).
Besides, currently MTD/CFI do not support this.

thanks,
Norbert.




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