linux-kernel - Re: Loud "pop" coming from hard drive on reboot

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Date:	Wed, 18 Apr 2007 17:29:18 -0400
From:	"Greg Freemyer" <greg.freemyer@...il.com>
To:	"Bartlomiej Zolnierkiewicz" <bzolnier@...il.com>
Cc:	"Chuck Ebbert" <cebbert@...hat.com>, "Mark Lord" <liml@....ca>,
	Stephen.Clark@...lark.us, "Tejun Heo" <htejun@...il.com>,
	"Alan Cox" <alan@...rguk.ukuu.org.uk>, 7eggert@....de,
	emisca <emisca.ml@...il.com>,
	"Jan Engelhardt" <jengelh@...ux01.gwdg.de>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-ide@...r.kernel.org, "Adrian Bunk" <bunk@...sta.de>,
	"Andrew Morton" <akpm@...l.org>
Subject: Re: Loud "pop" coming from hard drive on reboot

On 4/18/07, Bartlomiej Zolnierkiewicz <bzolnier@...il.com> wrote:
>
> On Wednesday 18 April 2007, Chuck Ebbert wrote:
> > Mark Lord wrote:
> > > Mark Lord wrote:
> > >>
> > >> With the patch applied, I don't see *any* new activity in those
> > >> S.M.A.R.T.
> > >> attributes over multiple hibernates (Linux "suspend-to-disk").
> > >
> > > Scratch that -- operator failure.  ;)
> > > The patch makes no difference over hibernates in the SMART logs.
> > >
> > > It's still logging extra Power-Off_Retract_Count pegs,
> > > which it DID NOT USED TO DO not so long ago.
> > >
> >
> > Just to add to the fun, my problems are happening with the "old"
> > IDE drivers...
>
> The issue you are experiencing results in the same problem (disk doing
> power off retract) but it has a totally different root cause - your notebook
> loses power on reboot.  It is actually a hardware problem and as you have
> reported the same problem is present when using "the other" OS.
>
> I think that the issue needs to be fixed (by detecting affected notebook(s)
> using DMI?) in Linux PM handling and not in IDE subsystem because:
>
> * there may be some other hardware devices affected by the power loss
>   (== they require shutdown sequence)
>
> * the same problem will bite if somebody decides to use libata (FC7?)
>
> Bart

OpenSUSE 10.3 is still in Alpha stage (at least a few months away from
release), but they too have switched to libata by default.  (You can
override by adding a boot param).

Greg
-- 
Greg Freemyer
The Norcross Group
Forensics for the 21st Century
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