linux-kernel - Re: MD/RAID time out writing superblock

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Date:	Thu, 17 Sep 2009 09:32:45 -0400
From:	Mark Lord <liml@....ca>
To:	Chris Webb <chris@...chsys.com>
Cc:	Tejun Heo <teheo@...e.de>, linux-scsi@...r.kernel.org,
	Ric Wheeler <rwheeler@...hat.com>,
	Andrei Tanas <andrei@...as.ca>, NeilBrown <neilb@...e.de>,
	linux-kernel@...r.kernel.org,
	IDE/ATA development list <linux-ide@...r.kernel.org>,
	Jeff Garzik <jgarzik@...hat.com>, Mark Lord <mlord@...ox.com>
Subject: Re: MD/RAID time out writing superblock

Mark Lord wrote:
>
> Is this still happening from time to time now?
> If so, disable the smartmontools daemon (smartd) and see if the problem 
> goes away.
> And especially disable hddtemp (which issues SMART commands) if that is 
> also around.
> 
> It would be good to discover if those are the triggers for what's 
> happening here.
..

Ah.. I've just now read your other recent posting, so no need to answer again here.



> Tejun.. do we do a FLUSH CACHE before issuing a non-NCQ command ?
> If not, then I think we may need to add code to do it.

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