linux-kernel - Re: SMART problems in 2.6.22

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Message-ID: <4692221B.7050608@dgreaves.com>
Date:	Mon, 09 Jul 2007 12:55:07 +0100
From:	David Greaves <david@...eaves.com>
To:	Bruce Allen <ballen@...vity.phys.uwm.edu>
Cc:	Mark Lord <liml@....ca>, Douglas Gilbert <dougg@...que.net>,
	Tejun Heo <htejun@...il.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Jeff Garzik <jeff@...zik.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jan Dvorak <fermentol@...il.com>,
	Smartmontools Mailing List 
	<smartmontools-support@...ts.sourceforge.net>,
	Klaus Fuerstberger <kfuerstberger@...or.de>,
	Bruce Allen <bruce.allen@....mpg.de>
Subject: Re: SMART problems in 2.6.22

Hi Bruce
>> From some of the earlier threads that I missed (below) I have the 
> impression that the problem may be a very simple one, namely that 
> starting with 2.6.22 one needs to run a command to enable SMART when a 
> box is first booted -- the kernel no longer does this as part of the 
> init/setup of the disks. But that is NOT consistent with the first two 
> reports above, which show 'SMART ENABLED'.
> 
> Here are some of the earlier threads that I completely missed:
> 
> http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg164863.html
This is mine and although it's a 'real' problem, it is something that's easy to 
hack around by having the suspend script turn on smart after it is resumed. (Of 
course I can't use resume until a skge wol bug is fixed so I won't see/test this 
unless asked too.)

The smart init scripts run '-s on' when the system boots anyway for my system - 
this problem only occurs for me during suspend/resume. Maybe smartd should 
detect that as Alan says.

Please let me know if there's anything else you need.

David


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