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Date: Wed, 21 Oct 2009 08:07:13 +0200
From: Norbert van Bolhuis <nvbolhuis@aimvalley.nl>
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Subject: Re: should/can we do ubidetach on reboot
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Norbert van Bolhuis wrote:
> 
> I guess it's safe/normal to detach an MTD device from UBI before 
> rebooting ?
> 
> I'm asking because detaching is the only way to shut down the UBI
> background task (ubi_bgt0d). I do not want this task to start a flash erase
> operation or whatsoever just before the actual reboot takes place.
> 
> 
> 

Oh, I miss "[PATCH] MTD: Add UBI reboot notifier".
This solves the problem.