From: Robert Hancock <hancockr@shaw.ca>
To: Tejun Heo <htejun@gmail.com>
Cc: Michael Sedkowski <sedmich@gmail.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Henrique de Moraes Holschuh <hmh@hmh.eng.br>,
linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
linux-acpi@vger.kernel.org
Subject: Re: Disk spin down issue on shut down/suspend to disk
Date: Mon, 06 Aug 2007 17:31:31 -0600 [thread overview]
Message-ID: <46B7AF53.1040307@shaw.ca> (raw)
In-Reply-To: <fa.QgWcLG2hfRb92g4blN61qYfRjlQ@ifi.uio.no>
Tejun Heo wrote:
> Michael Sedkowski wrote:
>>> 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.
>> Disk spins down on "Pre-shutdown prepare" and then goes up and down on
>> "Power down".
>
> Oh... crap, so acpi wants to sync cache on shutdown. I wonder whether
> it spins down the disk correctly. Does emergency unload count increase
> after each power down? Also, please post the result of 'dmidecode'.
I know that my Compaq X1000-series laptop does do some kind of ACPI
games with the disk on ACPI power off (I assume it is putting the disk
in standby before power-off at least). It also does this if you boot
into DOS, GRUB, etc. and then hit the power button. Could be if the disk
is dumb enough to spin up for sync cache and standby when there is
nothing to flush, and the kernel does its own standby, this could cause
an extra spinup/down..
--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/
next parent reply other threads:[~2007-08-06 23:31 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.bsWpbo79BZgHoaIGhEMfTEBxs54@ifi.uio.no>
[not found] ` <fa.mg6p0itaOQUo/t8deCaYpyqj6Nk@ifi.uio.no>
[not found] ` <fa.RxWYL8z8KktgL8LGZ/cTB2nI1Yc@ifi.uio.no>
[not found] ` <fa.AyyCtZ2yLjC5noHPHtmzn4ffhhE@ifi.uio.no>
[not found] ` <fa.SuAjism+m0z0haqCRVjkc2S978o@ifi.uio.no>
[not found] ` <fa.QgWcLG2hfRb92g4blN61qYfRjlQ@ifi.uio.no>
2007-08-06 23:31 ` Robert Hancock [this message]
2007-08-07 6:41 ` Disk spin down issue on shut down/suspend to disk Tejun Heo
2007-08-07 14:28 ` Robert Hancock
2007-08-07 14:37 ` Tejun Heo
2007-08-07 14:45 ` Thomas Renninger
2007-08-07 19:23 ` Michael Sedkowski
2007-08-07 20:09 ` Maciej Rutecki
2007-08-07 20:33 ` Rafael J. Wysocki
2007-08-07 20:41 ` Rafael J. Wysocki
2007-08-07 21:28 ` Maciej Rutecki
2007-08-07 22:30 ` Rafael J. Wysocki
2007-08-08 9:29 ` Michael Sedkowski
2007-08-08 2:56 ` Tejun Heo
2007-08-08 12:24 ` Rafael J. Wysocki
2007-08-09 21:46 ` Rafael J. Wysocki
2007-08-08 2:54 ` Tejun Heo
2007-08-08 14:08 ` Mark Lord
2007-08-08 14:14 ` Tejun Heo
2007-08-08 14:24 ` Mark Lord
2007-08-08 14:30 ` Tejun Heo
2007-08-08 15:21 ` Mark Lord
2007-08-08 15:35 ` Mark Lord
2007-08-08 16:20 ` Tejun Heo
2007-08-08 17:04 ` Mark Lord
2007-08-09 15:06 ` Pavel Machek
2007-08-09 18:47 ` Rafael J. Wysocki
[not found] ` <fa.Nj/igOoDE6GHsgyWFEo/9WCtE9c@ifi.uio.no>
[not found] ` <fa.usmOl3OVQVx3VExwvKiQI5iAX5Q@ifi.uio.no>
[not found] ` <fa.A9df+SR4FMdI7qZmsXY0xFyurbU@ifi.uio.no>
2007-08-08 0:23 ` Robert Hancock
2007-08-08 12:27 ` Rafael J. Wysocki
[not found] ` <fa.3VfWxxgY+5IvJGIam0al/rUn/Q4@ifi.uio.no>
[not found] ` <fa.WVQYJNYB2uuhgQFoGpK6eCfWazo@ifi.uio.no>
[not found] ` <fa.5IFtia9VWM6ePZjGzb+WVMoHQCY@ifi.uio.no>
[not found] ` <fa.M8tTjYMrntIRJ5aXHPFPjCNEk6k@ifi.uio.no>
[not found] ` <fa.IDurvYCLZ5ArGLsuNcLC3l1CSqQ@ifi.uio.no>
2007-08-11 2:21 ` Robert Hancock
2007-08-08 18:58 Al Boldi
[not found] <fa.kWUtPRLMmU/fKL6dyOOVKsSM0fg@ifi.uio.no>
[not found] ` <fa.EbjjD+/NapKvm3jfMLnkxumomC0@ifi.uio.no>
[not found] ` <fa.dm4O1sGL4RetYq2szbwwJT3cf2c@ifi.uio.no>
[not found] ` <fa.7tYfpSdE8/lmfK5ulSN+/6TRSbw@ifi.uio.no>
[not found] ` <fa.R1sVaL6mATofNd18aEZgwlczb8M@ifi.uio.no>
[not found] ` <fa.Z030SpvZYAHux0f8UtlnJwatsvY@ifi.uio.no>
2007-08-08 0:14 ` Robert Hancock
2007-08-08 4:06 ` Henrique de Moraes Holschuh
2007-08-08 4:26 ` Robert Hancock
-- strict thread matches above, loose matches on Subject: below --
2007-08-06 12:38 Michael Sedkowski
2007-08-05 21:37 Michał sed
[not found] <838f88840708051428p3d65ff42w627af4bc38f57de3@mail.gmail.com>
2007-08-05 21:33 ` Michał sed
[not found] ` <6bffcb0e0709080832o30fb21b5vcd09baa8387efcc0@mail.gmail.com>
2007-09-08 21:29 ` Rafael J. Wysocki
2007-09-09 9:20 ` Maciek Rutecki
2007-09-09 11:35 ` Rafael J. Wysocki
2007-08-06 5:22 ` Tejun Heo
2007-08-06 14:23 ` Henrique de Moraes Holschuh
2007-08-06 14:50 ` Michael Sedkowski
2007-08-06 15:01 ` Henrique de Moraes Holschuh
2007-08-06 15:27 ` Michael Sedkowski
2007-08-06 15:32 ` Rafael J. Wysocki
2007-08-06 17:03 ` Tejun Heo
2007-08-06 18:21 ` Michael Sedkowski
2007-08-06 18:43 ` Tejun Heo
2007-08-06 19:40 ` Rafael J. Wysocki
2007-08-06 19:43 ` Michael Sedkowski
2007-08-06 22:18 ` Michael Sedkowski
2007-08-07 6:56 ` Tejun Heo
2007-08-07 9:18 ` Michael Sedkowski
2007-08-07 9:31 ` Tejun Heo
2007-08-07 12:56 ` Henrique de Moraes Holschuh
2007-08-07 9:30 ` Michael Sedkowski
2007-08-06 23:45 ` Henrique de Moraes Holschuh
2007-08-07 6:53 ` Tejun Heo
2007-08-07 12:51 ` Henrique de Moraes Holschuh
2007-08-07 13:04 ` Thomas Renninger
2007-08-07 13:35 ` Tejun Heo
2007-08-07 13:09 ` Tejun Heo
2007-08-07 13:16 ` Henrique de Moraes Holschuh
2007-08-07 13:32 ` Tejun Heo
2007-08-07 13:45 ` Thomas Renninger
2007-08-07 14:01 ` Tejun Heo
2007-08-09 15:16 ` Pavel Machek
2007-08-09 15:56 ` Thomas Renninger
2007-08-06 19:25 ` Rafael J. Wysocki
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