linux-kernel - Re: SMART problems in 2.6.22

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Date:	Sun, 8 Jul 2007 20:14:10 -0500 (CDT)
From:	Bruce Allen <ballen@...vity.phys.uwm.edu>
To:	Mark Lord <liml@....ca>, David Greaves <david@...eaves.com>,
	Douglas Gilbert <dougg@...que.net>,
	Tejun Heo <htejun@...il.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Kai Makisara <Kai.Makisara@...umbus.fi>,
	Jeff Garzik <jeff@...zik.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
cc:	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

Here is another similar report:

http://article.gmane.org/gmane.linux.utilities.smartmontools/4704/match=diamondmax

Again, this indicates that SMART is enabled.  But it's not clear what the 
kernel version here is.  The report indicates that the problem started 
with an FC7 kernel upgrade

Bruce

On Sun, 8 Jul 2007, Bruce Allen wrote:

> Mark, David, Doug, Tejin, Alan, Jeff, LKML,
>
> I'm afraid that there may be some problem with SMART + libata in the 2.6.22 
> kernel.  An hour ago I discovered that I missed a month of correspondence 
> (some LKML, some private) about this problem which Alan, Tejun, Jeff, Mark 
> and others copied to me -- it was automatically shoved into one of my 
> mailboxes by my mail client.  Sorry about that.  So I am trying to catch up 
> to see if there is some real problem or not.
>
> Here is a typical bug report that worries me:
> http://article.gmane.org/gmane.linux.utilities.smartmontools/4712
>
> Here is another similar report:
> http://thread.gmane.org/gmane.linux.utilities.smartmontools/4713
>
> And another report:
> http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg358354.html
>
> 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.ussg.iu.edu/hypermail/linux/kernel/0706.1/0849.html
> http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg164863.html
>
> Before I go off half-cocked, could anyone shed some light on this?  Is there 
> a real problem here or just something dumb?
>
> Cheers,
> 	Bruce
>
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