From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Martin Steigerwald <Martin@lichtvoll.de>
Cc: Linux PM mailing list <linux-pm@lists.linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: does hibernate to disk try hard enough to free memory?
Date: Tue, 22 Feb 2011 22:09:15 +0100 [thread overview]
Message-ID: <201102222209.15647.rjw@sisk.pl> (raw)
In-Reply-To: <201102222159.58546.Martin@lichtvoll.de>
On Tuesday, February 22, 2011, Martin Steigerwald wrote:
> Hi!
>
> Since Radeon KMS I often have it that my ThinkPad T42 with 2 MiB of RAM is
> not able to allocate memory for the hibernation image. Before KMS
> hibernation only very rarely failed for that reason.
>
> Often I run without compositing at all as I believe this might spare some
> pages as well. But this doesn't always help.
>
> It complains that to less pages could be freed. For example with kernel
> 2.6.37:
>
> Feb 16 00:15:00 shambhala kernel: PM: Creating hibernation image:
> Feb 16 00:15:00 shambhala kernel: PM: Need to copy 186577 pages
> Feb 16 00:15:00 shambhala kernel: PM: Normal pages needed: 114411 + 1024,
> available pages: 112767
> Feb 16 00:15:00 shambhala kernel: PM: Not enough free memory
> Feb 16 00:15:00 shambhala kernel: PM: Error -12 creating hibernation image
> Feb 16 00:15:00 shambhala kernel: Extended CMOS year: 2000
> Feb 16 00:15:00 shambhala kernel: ACPI: Waking up from system sleep state
> S4
> Feb 16 00:15:00 shambhala kernel: PM: early recover of devices complete
> after 0.376 msecs
What's the value in /sys/power/image_size?
Rafael
next prev parent reply other threads:[~2011-02-22 21:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-22 20:59 does hibernate to disk try hard enough to free memory? Martin Steigerwald
2011-02-22 21:09 ` Rafael J. Wysocki [this message]
2011-02-22 22:07 ` Martin Steigerwald
2011-02-22 22:32 ` Rafael J. Wysocki
2011-02-23 14:10 ` Martin Steigerwald
2011-02-23 20:06 ` Rafael J. Wysocki
2011-03-05 14:41 ` Martin Steigerwald
2011-03-05 23:28 ` Rafael J. Wysocki
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