pm-hibernate does not hibernate

jody · l33t Joined: 16 Oct 2007 Posts: 682 Location: Switzerland

Hi
I have an Acer Aspire 7520, and have installed pm-utils successfully, as far as i can see:
the commands pm-suspend and pm-hibernate are found, and the gnome shut-down panel
contains the buttons "Suspend" and "Hibernate"
However, when i enter pm-hibernate in a terminal (as root), the laptop turns itself of after
some disk activity, but when i power up again, it does a normal start, as if freshly booted.
The same behaviour occurs when i press "Hibernate" in the gnome panel.

All suspend-related entries (i know of) in my config:

Hu · Administrator Joined: 06 Mar 2007 Posts: 23103

When the system starts, does it warn that it was shutdown improperly? That will tell us the difference between hibernate being converted into a shutdown versus a successful hibernate followed by the system not resuming.

How do you ask the system to resume instead of booting normally? Are you using the in-kernel software suspend or the TuxOnIce patches? What kernel version are you using? Where is the suspend image written, and are you sure that the image is available during resume?

jody · l33t Joined: 16 Oct 2007 Posts: 682 Location: Switzerland

Hi
Thank you for your reply. Because i have only small knowledge
about the suspension functions, i may not answer all your questions satisfactorily...

Hu · Administrator Joined: 06 Mar 2007 Posts: 23103

If you have not specified otherwise, the kernel will not attempt to read the hibernation image, and will instead behave as though the system is being restarted after a power failure. Therefore, it will boot normally, and may show messages indicating that filesystems were not cleanly unmounted. It is possible, and often desirable, to request a resume operation as your default boot option, and rely on the resume code to ignore that and perform a normal boot at those rare times that the system truly was shutdown.

To find the location of the hibernation image, check the configuration file for your hibernation tool. I use the hibernate script from TuxOnIce, which has a separate configuration file, so I cannot say where to look.

kani · n00b Joined: 22 Sep 2009 Posts: 2

Hey jody,
you gotta adjust your grub/menu.lst with the resume-parameter:

jody · l33t Joined: 16 Oct 2007 Posts: 682 Location: Switzerland

Hi Kani

Thank you for your suggestion - it brought me halfway there.
This

Hu · Administrator Joined: 06 Mar 2007 Posts: 23103

The system should refuse to hibernate, and instead remain running, if you have insufficient swap to store the hibernation image. The exact behavior varies depending on the code used, but the s2disk approach does this, and I think the TuxOnIce code does so as well.

jody · l33t Joined: 16 Oct 2007 Posts: 682 Location: Switzerland

Hi
Available space certainly was a problem:
Yes, i checked the log file '/var/log/pm-suspend.log', and there seems to be a space issue:

Hu · Administrator Joined: 06 Mar 2007 Posts: 23103

Unfortunately, no. I use the in-kernel suspend support.

jody · l33t Joined: 16 Oct 2007 Posts: 682 Location: Switzerland

Is in-kernel suspend the pm-utils way?
if yes, is it possible to use a file instead of the swap partition?
if yes, how would i have to go on about it?

Thank YOu
Jody

Hu · Administrator Joined: 06 Mar 2007 Posts: 23103

I do not use pm-utils, so I cannot say. I use a swap partition that is large enough for the full image, so I never tested with a swapfile. Documentation/power/swsusp-and-swap-files.txt seems to indicate that it works, though it looks like it is more trouble than using a swap partition. That file explains how to configure the resume side of the work. Since nothing special is said about the suspend side, it probably works without extra configuration.

fixhalleluja · n00b Joined: 09 Aug 2007 Posts: 12

melinux · n00b Joined: 25 May 2006 Posts: 59 Location: Malta

I had a problem when I upgraded to pm-utils 1.4.1 from 1.30-r2. It just wouldn't hibernate when I called pm-hibernate as root.

So I had to revert back and now it's working again.

Anyone have this problem too?
Seems like there's a bug with the latest version.

jody · l33t Joined: 16 Oct 2007 Posts: 682 Location: Switzerland

I have a similar problem:
I freshly installed 2.6.35-gentoo-r4 and as usual set the appropriate options in the kernel configuration

melinux · n00b Joined: 25 May 2006 Posts: 59 Location: Malta

jody · l33t Joined: 16 Oct 2007 Posts: 682 Location: Switzerland

jody · l33t Joined: 16 Oct 2007 Posts: 682 Location: Switzerland

I just saw that according to /var/log/pm-suspend.log my computer really does hibernate:

melinux · n00b Joined: 25 May 2006 Posts: 59 Location: Malta

jody · l33t Joined: 16 Oct 2007 Posts: 682 Location: Switzerland

I now finally found the problem:
In grub.conf i changed the line

kernelOfTruth · Posted: Tue Sep 28, 2010 12:28 am Post subject:

guys - care to explain a little bit what it does when it "wakes up" ?

for me it actually hibernates (saying "performing hibernate") - I also see it writing stuff to the swap-partition

but it doesn't resume

I have / (root) and swap on an encrypted LVM named GENTOO so:

1) LUKS (encrypted) -> LVM ("GENTOO") -> ROOT, SWAP

so I first have to enter a password to open the LVM -> both volumes are detected -> starts to boot

2) the commands for grub.conf shall be:

crypt_root=/dev/sdd7 real_root=/dev/mapper/GENTOO-ROOT real_resume=/dev/mapper/GENTOO-SWAP resume=/dev/mapper/GENTOO-SWAP

4) I'm manually hibernating via

pm-hibernate

5) anything I'm missing ?

because everytime I'm turning my computer back on it simply invalidates the swap-resume information (it actually finds a signature of hibernate/suspend) and continues to boot up normally

many thanks in advance

pm-suspend works fine, btw
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Hardcore Gentoo Linux user since 2004

Hu · Administrator Joined: 06 Mar 2007 Posts: 23103

What messages are produced by your initramfs when it tries to resume from the hibernation image?

kernelOfTruth · Posted: Tue Sep 28, 2010 10:57 am Post subject:

kernelOfTruth · Posted: Tue Sep 28, 2010 8:23 pm Post subject:

well I added

resume=swap:/dev/mapper/GENTOO-SWAP

on top of all that and got:

ls /dev/mapper/GENTOO-SWAP no such file or directory

(or something similar)

I'm a little bit lost here

so I should call or add another command on grub.conf ?

many thanks in advance
_________________
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https://github.com/kernelOfTruth/pulseaudio-equalizer-ladspa

Hardcore Gentoo Linux user since 2004

kernelOfTruth · Posted: Tue Sep 28, 2010 8:57 pm Post subject:

now I changed all relevant lines (in /etc/fstab, /etc/conf.d/dmcrypt, grub.conf, suspend.conf) to /dev/mapper/swap and outsourced the swap-partition to one of its own:

crypt_swap=/dev/sdd8 real_resume=/dev/mapper/swap resume=/dev/mapper/swap resume=swap:/dev/mapper/swap

but it still clearly says (!):

ls /dev/mapper/swap no such file or directory

at least that's now a progress / output I'm seeing

_________________
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https://github.com/kernelOfTruth/pulseaudio-equalizer-ladspa

Hardcore Gentoo Linux user since 2004

kernelOfTruth · Opened: 2008-01-19 20:49

sys-kernel/genkernel-3.4.9 - ls: : No such file or directory" message during boot

Wow - that one's old