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

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Message-ID: <8db1092f0708071428lde63dc7o2b422ed81797a16e@mail.gmail.com>
Date:	Tue, 7 Aug 2007 23:28:00 +0200
From:	"Maciej Rutecki" <maciej.rutecki@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	"Michael Sedkowski" <sedmich@...il.com>, trenn@...e.de,
	"Tejun Heo" <htejun@...il.com>,
	"Robert Hancock" <hancockr@...w.ca>,
	"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

> > Well, on my box (nx6325) with the appended (experimental) patch applied
> > on top of 2.6.23-rc1 with the patchset from
>
> s/2.6.23-rc1/2.6.23-rc2/
>

HP nx 6310, _old_ shutdown 2.6.23-rc2+above patches:

1. Before:
rutek:/home/maciek# /usr/sbin/smartctl --all -d ata /dev/sda | grep
Power-Off_Retract_Count
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age
Always       -       61

2. Try suspend to disk, double spin down doesn't exist

3. Normal shutdown, double spin down exists, BUT NOTE: I have still
old shutdown utility from Debian package.

4. After:
rutek:/home/maciek# /usr/sbin/smartctl --all -d ata /dev/sda | grep
Power-Off_Retract_Count
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age
Always       -       61

(it doesn't change=61).

I wait for Michael, He has new shutdown from Sidux, and the same notebook.

-- 
Maciej Rutecki
http://www.maciek.unixy.pl
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