linux-kernel - Re: SMART problems in 2.6.22

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Message-ID: <Pine.LNX.4.63.0707091256330.7386@trinity.phys.uwm.edu>
Date:	Mon, 9 Jul 2007 13:02:28 -0500 (CDT)
From:	Bruce Allen <ballen@...vity.phys.uwm.edu>
To:	Jan Dvorak <fermentol@...il.com>,
	Klaus Fuerstberger <kfuerstberger@...or.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jeff Garzik <jeff@...zik.org>
cc:	Mark Lord <liml@....ca>, David Greaves <david@...eaves.com>,
	Douglas Gilbert <dougg@...que.net>,
	Tejun Heo <htejun@...il.com>,
	Smartmontools Mailing List 
	<smartmontools-support@...ts.sourceforge.net>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Kai Makisara <Kai.Makisara@...umbus.fi>,
	Bruce Allen <bruce.allen@....mpg.de>
Subject: Re: SMART problems in 2.6.22

Hi Jeff,

>>> It's possible that the recent addition of ACPI support will cause disks to 
>>> be in different modes than previously expected.  ACPI supplies ATA 
>>> taskfiles to be pushed to the disk, and who knows what's in there...
>> 
>> Is there a simple way I can have affected users test this?  Is there a 
>> kernel boot flag or sysctl setting or something else they can use to 
>> disable the ACPI stuff so see if the problem then goes away?
>
> The 'noacpi' module option.

OK, thanks.

Klaus, Jan: could you please see if your problem with 2.6.22 goes away 
with noacpi passed as a flag to libata?

Jeff: I will add the noacpi test suggestion into the Debian bug report 
here http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=428975 to try to 
ensure that Klaus sees it.

Cheers,
 	Bruce
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