From: Pavel Machek <pavel@suse.cz>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
pm list <linux-pm@lists.linux-foundation.org>,
Shaohua Li <shaohua.li@intel.com>,
Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH -mm 7/8] ACPI hibernation: Utilize hardware signature
Date: Thu, 10 Jul 2008 10:34:23 +0200 [thread overview]
Message-ID: <20080710083423.GD5629@elf.ucw.cz> (raw)
In-Reply-To: <200807100205.52308.rjw@sisk.pl>
> Subject: ACPI hibernation: Utilize hardware signature
>
> ACPI defines a hardware signature. BIOS calculates the signature
> according to hardware configure and if hardware changes while
> hibernated, the signature will change. In that case, S4 resume
> should fail.
>
> Still, there may be systems on which this mechanism does not work
> correctly, so it is better to provide a workaround for them. For
> this reason, add a new switch to the acpi_sleep= command line
> argument allowing one to disable hardware signature checking.
>
> Signed-off-by: Shaohua Li <shaohua.li@intel.com>
> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
ACK.
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2008-07-10 8:33 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-09 23:52 [PATCH -mm 0/8] PM patches for 2.6.27 Rafael J. Wysocki
2008-07-09 23:55 ` [PATCH -mm 1/8] PM: Add new PM_EVENT codes for runtime power transitions Rafael J. Wysocki
2008-07-10 11:34 ` Pavel Machek
2008-07-09 23:58 ` [PATCH -mm 2/8] AHCI: Speed-up resume Rafael J. Wysocki
2008-07-10 11:34 ` Pavel Machek
2008-07-10 0:00 ` [PATCH -mm 3/8] Hibernation: Simplify memory bitmap Rafael J. Wysocki
2008-07-10 11:34 ` Pavel Machek
2008-07-10 0:01 ` [PATCH -mm 4/8] serio: Speed-up resume Rafael J. Wysocki
2008-07-10 11:35 ` Pavel Machek
2008-07-10 15:11 ` Dmitry Torokhov
2008-07-10 0:03 ` [PATCH -mm 5/8] Introduce new interface schedule_work_on Rafael J. Wysocki
2008-07-10 11:36 ` Pavel Machek
2008-07-10 0:04 ` [PATCH -mm 6/8] Schedule sysrq poweroff on boot cpu Rafael J. Wysocki
2008-07-10 11:36 ` Pavel Machek
2008-07-10 0:05 ` [PATCH -mm 7/8] ACPI hibernation: Utilize hardware signature Rafael J. Wysocki
2008-07-10 8:34 ` Pavel Machek [this message]
2008-07-10 0:07 ` [PATCH -mm 8/8] ACPI PM: Add DMI quirk list for ACPI 1.0 suspend ordering Rafael J. Wysocki
2008-07-10 11:37 ` Pavel Machek
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