linux-kernel - Re: [2.6.23] IBM X41 looses time after Suspend2Disk

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Message-Id: <200710292205.11459.rjw@sisk.pl>
Date:	Mon, 29 Oct 2007 22:05:10 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Philipp Matthias Hahn <pmhahn@...an.lahn.de>
Cc:	Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-pm@...ts.linux-foundation.org, Pavel Machek <pavel@...e.cz>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [2.6.23] IBM X41 looses time after Suspend2Disk

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
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