[2.6.23] IBM X41 looses time after Suspend2Disk

[2.6.23] IBM X41 looses time after Suspend2Disk

[Philipp Matthias Hahn]

Hello Thomas, Pavel, Rafael!

I have an IBM X41 tablet pc running 2.6.23 with the following problem:
Suspend2Ram work fine, but when I do a Suspend2Disk (echo disk >
/sys/power/state), the notebook hangs showing the following lines:
        Stopping tasks ... done.
        Shrinking memory... done (49361 pages freed)
        Freed 197444 kbytes in 0.64 seconds (308.50 MB/s)
        Suspending console(s)

When I repeatedly press some keys or move the TrackPoint, the SwSusp
continues and the notebook powers off.
On reboot, the notebook resumes but hangs showing the following screen:
        Stopping tasks ... done.
        Loading image data pages (62483 pages) ... done
        Read 249932 kbytes in 18.63 seconds (13.41 MB/s)
        Suspending console(s)

Generating interrupts by pressing keys or moving the TrackPoints makes
the resume continue. But after that, the notebook looses time, xterms
don't get updated until I press a key, the beeper beeps until I press a
key, etc.

Any idea what the problem might be?

DMESG: http://corellon.svs.informatik.uni-oldenburg.de/~pmhahn/x41.dmesg
CONFIG: http://corellon.svs.informatik.uni-oldenburg.de/~pmhahn/x41.config

If you need more data, just ask.

Thank you, BYtE
Philipp
-- 
  / /  (_)__  __ ____  __ Philipp Hahn
 / /__/ / _ \/ // /\ \/ /
/____/_/_//_/\_,_/ /_/\_\ pmhahn@titan.lahn.de

Re: [2.6.23] IBM X41 looses time after Suspend2Disk

[Rafael J. Wysocki]

On Monday, 29 October 2007 21:19, Philipp Matthias Hahn wrote:
> Hello Thomas, Pavel, Rafael!
> 
> I have an IBM X41 tablet pc running 2.6.23 with the following problem:
> Suspend2Ram work fine, but when I do a Suspend2Disk (echo disk >
> /sys/power/state), the notebook hangs showing the following lines:
>         Stopping tasks ... done.
>         Shrinking memory... done (49361 pages freed)
>         Freed 197444 kbytes in 0.64 seconds (308.50 MB/s)
>         Suspending console(s)
> 
> When I repeatedly press some keys or move the TrackPoint, the SwSusp
> continues and the notebook powers off.
> On reboot, the notebook resumes but hangs showing the following screen:
>         Stopping tasks ... done.
>         Loading image data pages (62483 pages) ... done
>         Read 249932 kbytes in 18.63 seconds (13.41 MB/s)
>         Suspending console(s)
> 
> Generating interrupts by pressing keys or moving the TrackPoints makes
> the resume continue. But after that, the notebook looses time, xterms
> don't get updated until I press a key, the beeper beeps until I press a
> key, etc.
> 
> Any idea what the problem might be?

Nope.

> DMESG: http://corellon.svs.informatik.uni-oldenburg.de/~pmhahn/x41.dmesg
> CONFIG: http://corellon.svs.informatik.uni-oldenburg.de/~pmhahn/x41.config
> 
> If you need more data, just ask.

Please try to do "echo shutdown > /sys/power/disk" before hibernation and
see what happens.

Also, is it an SMP kernel or UP?

Rafael

Re: [2.6.23] IBM X41 looses time after Suspend2Disk

[Pavel Machek]

Hi!

> I have an IBM X41 tablet pc running 2.6.23 with the following problem:
> Suspend2Ram work fine, but when I do a Suspend2Disk (echo disk >
> /sys/power/state), the notebook hangs showing the following lines:
>         Stopping tasks ... done.
>         Shrinking memory... done (49361 pages freed)
>         Freed 197444 kbytes in 0.64 seconds (308.50 MB/s)
>         Suspending console(s)
> 
> When I repeatedly press some keys or move the TrackPoint, the SwSusp
> continues and the notebook powers off.
> On reboot, the notebook resumes but hangs showing the following screen:
>         Stopping tasks ... done.
>         Loading image data pages (62483 pages) ... done
>         Read 249932 kbytes in 18.63 seconds (13.41 MB/s)
>         Suspending console(s)
> 
> Generating interrupts by pressing keys or moving the TrackPoints makes
> the resume continue. But after that, the notebook looses time, xterms
> don't get updated until I press a key, the beeper beeps until I press a
> key, etc.
> 
> Any idea what the problem might be?

Yep, I seen that before. Try "nohz=off".
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Re: [2.6.23] IBM X41 looses time after Suspend2Disk

[Philipp Matthias Hahn]

Hello Rafael, Pavel!

Thank you both for the fast help.

On Mon, Oct 29, 2007 at 10:05:10PM +0100, Rafael J. Wysocki wrote:
> On Monday, 29 October 2007 21:19, Philipp Matthias Hahn wrote:
> > I have an IBM X41 tablet pc running 2.6.23 with the following problem:
> > Suspend2Ram work fine, but when I do a Suspend2Disk (echo disk >
> > /sys/power/state), the notebook hangs showing the following lines:
...
> >         Suspending console(s)
> > 
> > When I repeatedly press some keys or move the TrackPoint, the SwSusp
> > continues and the notebook powers off.
> > On reboot, the notebook resumes but hangs showing the following screen:
...
> >         Suspending console(s)
> > 
> > Generating interrupts by pressing keys or moving the TrackPoints makes
> > the resume continue. But after that, the notebook looses time, xterms
> > don't get updated until I press a key, the beeper beeps until I press a
> > key, etc.
...
> Please try to do "echo shutdown > /sys/power/disk" before hibernation and
> see what happens.

I'm already doing that.

> Also, is it an SMP kernel or UP?

UP.


On Mon, Oct 29, 2007 at 10:24:14PM +0100, Pavel Machek wrote:
> Yep, I seen that before. Try "nohz=off".

Okay, that seems to solve the "timer loosing time after resume" problem.


But I still need to press some keys on suspend (7-12 key presses and
releases) to unhang it. On resume not key presses are needed any more.

During on suspend-resume cycle ACPI barfed afer resume spewing messages
without end (error during execution of methode \...THM, error evaulation
operand ...) I had to remove the battery and pull the power-plug to
reboot it.

BYtE
Philipp
-- 
  / /  (_)__  __ ____  __ Philipp Hahn
 / /__/ / _ \/ // /\ \/ /
/____/_/_//_/\_,_/ /_/\_\ pmhahn@titan.lahn.de

Re: [2.6.23] IBM X41 looses time after Suspend2Disk

[Pavel Machek]

On Tue 2007-10-30 09:35:37, Philipp Matthias Hahn wrote:
> Hello Rafael, Pavel!
> 
> Thank you both for the fast help.
> 
> On Mon, Oct 29, 2007 at 10:05:10PM +0100, Rafael J. Wysocki wrote:
> > On Monday, 29 October 2007 21:19, Philipp Matthias Hahn wrote:
> > > I have an IBM X41 tablet pc running 2.6.23 with the following problem:
> > > Suspend2Ram work fine, but when I do a Suspend2Disk (echo disk >
> > > /sys/power/state), the notebook hangs showing the following lines:
> ...
> > >         Suspending console(s)
> > > 
> > > When I repeatedly press some keys or move the TrackPoint, the SwSusp
> > > continues and the notebook powers off.
> > > On reboot, the notebook resumes but hangs showing the following screen:
> ...
> > >         Suspending console(s)
> > > 
> > > Generating interrupts by pressing keys or moving the TrackPoints makes
> > > the resume continue. But after that, the notebook looses time, xterms
> > > don't get updated until I press a key, the beeper beeps until I press a
> > > key, etc.
> ...
> > Please try to do "echo shutdown > /sys/power/disk" before hibernation and
> > see what happens.
> 
> I'm already doing that.
> 
> > Also, is it an SMP kernel or UP?
> 
> UP.
> 
> 
> On Mon, Oct 29, 2007 at 10:24:14PM +0100, Pavel Machek wrote:
> > Yep, I seen that before. Try "nohz=off".
> 
> Okay, that seems to solve the "timer loosing time after resume" problem.
> 
> 
> But I still need to press some keys on suspend (7-12 key presses and
> releases) to unhang it. On resume not key presses are needed any
> more.

So it fixed resume but not suspend? strange. Try highres=off, too. And
maybe irqpoll?

You may want to try cpu hotplug separately...

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Re: [2.6.23] IBM X41 looses time after Suspend2Disk

[Rafael J. Wysocki]

On Tuesday, 30 October 2007 09:35, Philipp Matthias Hahn wrote:
> Hello Rafael, Pavel!
> 
> Thank you both for the fast help.
> 
> On Mon, Oct 29, 2007 at 10:05:10PM +0100, Rafael J. Wysocki wrote:
> > On Monday, 29 October 2007 21:19, Philipp Matthias Hahn wrote:
> > > I have an IBM X41 tablet pc running 2.6.23 with the following problem:
> > > Suspend2Ram work fine, but when I do a Suspend2Disk (echo disk >
> > > /sys/power/state), the notebook hangs showing the following lines:
> ...
> > >         Suspending console(s)
> > > 
> > > When I repeatedly press some keys or move the TrackPoint, the SwSusp
> > > continues and the notebook powers off.
> > > On reboot, the notebook resumes but hangs showing the following screen:
> ...
> > >         Suspending console(s)
> > > 
> > > Generating interrupts by pressing keys or moving the TrackPoints makes
> > > the resume continue. But after that, the notebook looses time, xterms
> > > don't get updated until I press a key, the beeper beeps until I press a
> > > key, etc.
> ...
> > Please try to do "echo shutdown > /sys/power/disk" before hibernation and
> > see what happens.
> 
> I'm already doing that.

Well, have you tried doing "echo platform > /sys/power/disk" before hibernation
instead?

> > Also, is it an SMP kernel or UP?
> 
> UP.
> 
> 
> On Mon, Oct 29, 2007 at 10:24:14PM +0100, Pavel Machek wrote:
> > Yep, I seen that before. Try "nohz=off".
> 
> Okay, that seems to solve the "timer loosing time after resume" problem.
> 
> 
> But I still need to press some keys on suspend (7-12 key presses and
> releases) to unhang it. On resume not key presses are needed any more.
> 
> During on suspend-resume cycle ACPI barfed afer resume spewing messages
> without end (error during execution of methode \...THM, error evaulation
> operand ...) I had to remove the battery and pull the power-plug to
> reboot it.

The ACPI platform firmware got confused, apparently.

Greetings,
Rafael

Re: [2.6.23] IBM X41 looses time after Suspend2Disk

[Philipp Matthias Hahn]

Hello!

On Tue, Oct 30, 2007 at 10:08:01PM +0100, Pavel Machek wrote:
> > > On Monday, 29 October 2007 21:19, Philipp Matthias Hahn wrote:
> > > > I have an IBM X41 tablet pc running 2.6.23 with the following problem:
> > > > Suspend2Ram work fine, but when I do a Suspend2Disk (echo disk >
> > > > /sys/power/state), the notebook hangs showing the following lines:
> > ...
> > > >         Suspending console(s)
> > > > 
> > > > When I repeatedly press some keys or move the TrackPoint, the SwSusp
> > > > continues and the notebook powers off.
> > > > On reboot, the notebook resumes but hangs showing the following screen:
> > ...
> > > >         Suspending console(s)
> > > > 
> > > > Generating interrupts by pressing keys or moving the TrackPoints makes
> > > > the resume continue. But after that, the notebook looses time, xterms
> > > > don't get updated until I press a key, the beeper beeps until I press a
> > > > key, etc.
...
> > On Mon, Oct 29, 2007 at 10:24:14PM +0100, Pavel Machek wrote:
> > > Yep, I seen that before. Try "nohz=off".
> > 
> > Okay, that seems to solve the "timer loosing time after resume" problem.
> > 
> > 
> > But I still need to press some keys on suspend (7-12 key presses and
> > releases) to unhang it. On resume not key presses are needed any
> > more.
> 
> So it fixed resume but not suspend? strange. Try highres=off, too. And
> maybe irqpoll?

highres=off did the trick. Thank you.

Does somebody want more data to debug this further?


On Tue, Oct 30, 2007 at 10:20:33PM +0100, Rafael J. Wysocki wrote:
> Well, have you tried doing "echo platform > /sys/power/disk" before
> hibernation instead?

It also seems to work, but doesn't improve the situation. I still need
to press keys for resume.

BYtE
Philipp
-- 
  / /  (_)__  __ ____  __ Philipp Hahn
 / /__/ / _ \/ // /\ \/ /
/____/_/_//_/\_,_/ /_/\_\ pmhahn@titan.lahn.de

Re: [2.6.23] IBM X41 looses time after Suspend2Disk

[Rafael J. Wysocki]

On Friday, 2 November 2007 14:33, Philipp Matthias Hahn wrote:
> Hello!
> 
> On Tue, Oct 30, 2007 at 10:08:01PM +0100, Pavel Machek wrote:
> > > > On Monday, 29 October 2007 21:19, Philipp Matthias Hahn wrote:
> > > > > I have an IBM X41 tablet pc running 2.6.23 with the following problem:
> > > > > Suspend2Ram work fine, but when I do a Suspend2Disk (echo disk >
> > > > > /sys/power/state), the notebook hangs showing the following lines:
> > > ...
> > > > >         Suspending console(s)
> > > > > 
> > > > > When I repeatedly press some keys or move the TrackPoint, the SwSusp
> > > > > continues and the notebook powers off.
> > > > > On reboot, the notebook resumes but hangs showing the following screen:
> > > ...
> > > > >         Suspending console(s)
> > > > > 
> > > > > Generating interrupts by pressing keys or moving the TrackPoints makes
> > > > > the resume continue. But after that, the notebook looses time, xterms
> > > > > don't get updated until I press a key, the beeper beeps until I press a
> > > > > key, etc.
> ...
> > > On Mon, Oct 29, 2007 at 10:24:14PM +0100, Pavel Machek wrote:
> > > > Yep, I seen that before. Try "nohz=off".
> > > 
> > > Okay, that seems to solve the "timer loosing time after resume" problem.
> > > 
> > > 
> > > But I still need to press some keys on suspend (7-12 key presses and
> > > releases) to unhang it. On resume not key presses are needed any
> > > more.
> > 
> > So it fixed resume but not suspend? strange. Try highres=off, too. And
> > maybe irqpoll?
> 
> highres=off did the trick. Thank you.
> 
> Does somebody want more data to debug this further?

Please create a bugzilla entry at http://bugzilla.kernel.org for this bug
(against "Power Management"->"Hibernation/Suspend") and put a summary of your
findings in there.  Also, please add my address to the bug's CC list.

Thanks,
Rafael