linux-kernel - Re: Bad behaviour after hdparm -M 128

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Message-ID: <20070608015004.GA16785@khazad-dum.debian.net>
Date:	Thu, 7 Jun 2007 22:50:04 -0300
From:	Henrique de Moraes Holschuh <hmh@....eng.br>
To:	Mark Lord <lkml@....ca>
Cc:	Björn Steinbrink <B.Steinbrink@....de>,
	Robert Hancock <hancockr@...w.ca>, linux-kernel@...r.kernel.org
Subject: Re: Bad behaviour after hdparm -M  128

On Thu, 07 Jun 2007, Mark Lord wrote:
> Henrique de Moraes Holschuh wrote:
> >On Wed, 06 Jun 2007, Björn Steinbrink wrote:
> >>HDAPS support is available, revision is MB2IA60A.
> >
> >That would usually rule out the possibility of it being the firmware, but 
> >we
> >have different disks, so different firmware.
> >
> >It looks like I will have to try 2.6.22 to know for sure.
> 
> "hdparm -I" should list "Automatic Acoustic Management feature set"
> (near the bottom) for any drive that *does* support the -M feature.

I just tracked it down to hdparm.  Version 6.9 (the one in Debian stable)
doesn't work right with libata.  Version 7.5 (the one in Debian unstable)
works fine.

So, at least in my side, there are *no* kernel bugs.  Maybe this is also the
case for the poster that reported the problem?

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh
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