Frequent Writes to NAND flash with UBIFS in sychronous mode

Ricard Wanderlof ricard.wanderlof at
Fri Nov 9 05:42:08 EST 2012

On Fri, 9 Nov 2012, Tech tech wrote:

> Hi Ricard,
>  Thanks for the reply. Yes. This observation is only with synchronous mode.
> Without '-sync' option, writes doesn't happen with reads.
> Can you explain a little more on the "cached writes" that you mentioned?

Sorry, thinking about it, that would be valid for the case without '-o 
sync' where write operations do not happen right away but are buffered. 
But in the synchronous case writes should be performed more or less 

> I will try to check the UBI scrub part & will update.

I was thinking along the lines of misconfigured hardware or software 
believing that there were bit flips in the data and it needed to be 
rewritten for that reason.

Ricard Wolf Wanderlöf                           ricardw(at)
Axis Communications AB, Lund, Sweden  
Phone +46 46 272 2016                           Fax +46 46 13 61 30

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