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

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Message-ID: <20071029212414.GD3692@elf.ucw.cz>
Date:	Mon, 29 Oct 2007 22:24:14 +0100
From:	Pavel Machek <pavel@....cz>
To:	Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-pm@...ts.linux-foundation.org,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [2.6.23] IBM X41 looses time after Suspend2Disk

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
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