From: Tejun Heo <tj@kernel.org>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Mark Lord <liml@rtr.ca>,
Linus Torvalds <torvalds@linux-foundation.org>,
Jeff Garzik <jeff@garzik.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-ide@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [git patches] libata hibernation fixes
Date: Wed, 05 Nov 2008 11:17:31 +0900 [thread overview]
Message-ID: <4911023B.20901@kernel.org> (raw)
In-Reply-To: <200811041807.17183.rjw@sisk.pl>
Rafael J. Wysocki wrote:
>> So, what happens if we just don't ever spin them down from the kernel?
>> Presumably they still spin-down normally (HP or otherwise) when the BIOS
>> actually cuts the power at the end of all of this?
>>
>> Just curious..
>
> Well, I'll let Tejun answer that. :-)
The BIOSen on the affected HP ones will spin the drives down during
power off or hibernation, so there won't be any problem (that's what the
patch does, BTW). For all other machines, the drive will do emergency
head unload which usually sounds a bit differently and shortens the
lifespan of the drive.
Thanks.
--
tejun
next prev parent reply other threads:[~2008-11-05 2:18 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-04 6:27 [git patches] libata hibernation fixes Jeff Garzik
2008-11-04 16:29 ` Linus Torvalds
2008-11-04 16:53 ` Rafael J. Wysocki
2008-11-04 16:59 ` Mark Lord
2008-11-04 17:07 ` Rafael J. Wysocki
2008-11-05 2:17 ` Tejun Heo [this message]
2008-11-04 20:30 ` Pavel Machek
2008-11-04 21:08 ` Rafael J. Wysocki
2008-11-04 21:12 ` Linus Torvalds
2008-11-05 2:23 ` Tejun Heo
2008-11-05 2:42 ` Tejun Heo
2008-11-10 8:52 ` Tejun Heo
2009-01-02 2:36 ` Tejun Heo
2009-01-05 8:34 ` Jeff Garzik
2009-01-11 5:44 ` Jeff Garzik
2009-01-11 12:43 ` Rafael J. Wysocki
2009-01-18 10:20 ` Frans Pop
2009-01-18 20:25 ` Rafael J. Wysocki
2009-01-18 20:39 ` Jeff Garzik
2009-01-19 19:53 ` [PATCH 0/6] Hibernation/poweroff quirks (was: Re: [git patches] libata hibernation fixes) Rafael J. Wysocki
2009-01-19 19:54 ` [PATCH 1/6] Hibernation: Introduce system_entering_hibernation Rafael J. Wysocki
2009-01-19 21:25 ` Frederic Weisbecker
2009-01-19 21:35 ` Rafael J. Wysocki
2009-01-19 21:48 ` Frederic Weisbecker
2009-01-20 7:30 ` Maciej Rutecki
2009-01-29 13:04 ` Pavel Machek
2009-01-29 14:51 ` Rafael J. Wysocki
2009-01-19 19:55 ` [PATCH 2/6] DMI: Introduce dmi_first_match to make the interface more flexible Rafael J. Wysocki
2009-01-19 21:15 ` Frans Pop
2009-01-20 7:30 ` Maciej Rutecki
2009-01-19 19:56 ` [PATCH 3/6] SATA: Blacklisting of systems that spin off disks during ACPI power off Rafael J. Wysocki
2009-01-20 7:31 ` Maciej Rutecki
2009-01-19 19:57 ` [PATCH 4/6] SATA AHCI: Blacklist system that spins " Rafael J. Wysocki
2009-01-20 7:31 ` Maciej Rutecki
2009-01-19 19:58 ` [PATCH 5/6] SATA Sil: " Rafael J. Wysocki
2009-01-20 7:32 ` Maciej Rutecki
2009-01-19 19:59 ` [PATCH 6/6] SATA PIIX: " Rafael J. Wysocki
2009-01-19 22:08 ` Frans Pop
2009-01-20 7:33 ` Maciej Rutecki
2009-01-18 20:59 ` [git patches] libata hibernation fixes Frans Pop
2009-01-18 22:52 ` Rafael J. Wysocki
[not found] <fa.Ast7pgG6P20u1PcyOsfgzoaX5YA@ifi.uio.no>
[not found] ` <fa.1+JQHm7yjIiZJxAzR0eBPn39a9M@ifi.uio.no>
[not found] ` <fa.+bfipgmFkcLlZMtnFL0Ks2zyN8Q@ifi.uio.no>
[not found] ` <fa.Iek0GbTZLinM2sOi6+b7bsCgnfs@ifi.uio.no>
2008-11-05 0:01 ` Robert Hancock
2008-11-05 0:45 ` Elias Oltmanns
2008-11-05 2:30 ` Tejun Heo
2008-11-05 9:31 ` Elias Oltmanns
2008-11-05 9:37 ` Tejun Heo
2008-11-05 14:37 ` Robert Hancock
[not found] ` <fa.8GbzH83c2CAI53n9dyzVOFugmoc@ifi.uio.no>
[not found] ` <fa.hGdpNHQGmXAR19JiGuHxSr9N9CA@ifi.uio.no>
2008-11-05 0:20 ` Robert Hancock
2008-11-05 2:10 ` Mark Lord
2008-11-05 2:24 ` Robert Hancock
-- strict thread matches above, loose matches on Subject: below --
2009-01-27 7:31 Jeff Garzik
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