linux-kernel - Re: Disk spin down issue on shut down/suspend to disk

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Date:	Mon, 06 Aug 2007 20:21:32 +0200
From:	Michael Sedkowski <sedmich@...il.com>
To:	Tejun Heo <htejun@...il.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Henrique de Moraes Holschuh <hmh@....eng.br>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	linux-acpi@...r.kernel.org
Subject: Re: Disk spin down issue on shut down/suspend to disk

Dnia 07-08-2007, Wt o godzinie 02:03 +0900, Tejun Heo napisał(a):
> Rafael J. Wysocki wrote:
> >>> Sidux is a Debian Unstable based distro with it's own set of patches
> >>> including the shut down patch provided here:
> >>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=426224
> >> You'll probably have to ask Sidux what changes they made that could cause
> >> the double spin down, even if halt(8) is never passed the -h flag.
> > 
> > Well, I've been observing the same behavior on nx6325 for some time and I
> > use openSUSE 10.2.  I think this is kernel-related.
> 
> Hmmm... If the problem only shows up on nx6325, it might be that ACPI is
> pulling unnecessary stunt.  Please apply the attached patch and report
> when the disk spins down and up.
> 
> Thanks.
> 

Disk spins down on "Pre-shutdown prepare" and then goes up and down on
"Power down".

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