Long attach times attaching MTD to UBI

[Adrian Hunter]

David Lambert wrote:
> Please excuse me if this is a naive question as I am a newbie to MTD and 
> flash file systems.
> 
> I am attempting to enable UBIFS on an Atmel AT91RM9200 using kernel 
> version 2.6.30.1. One of the attractions was fast mount times compared 
> to JFFS2 etc. Unfortunately I am running into VERY long attach times as 
> witnessed below. Obviously I must be doing something very wrong as the 
> documentation indicates that attaching a 1G partition should take around 
> 2 seconds, but mine is over 8 minutes!

Is your NAND slow?  Have you configured UBI debugging checks turned on?