linux-kernel - Re: 2.6.23-rc2 swsusp, suddenly increased uptime

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Message-ID: <Pine.LNX.4.63.0708282122220.16484@er-systems.de>
Date:	Tue, 28 Aug 2007 21:24:20 +0200 (CEST)
From:	Thomas Voegtle <tv@...96.de>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
cc:	Thomas Voegtle <tv@...96.de>, linux-kernel@...r.kernel.org,
	Pavel Machek <pavel@....cz>,
	pm list <linux-pm@...ts.linux-foundation.org>
Subject: Re: 2.6.23-rc2 swsusp, suddenly increased uptime

On Tue, 14 Aug 2007, Rafael J. Wysocki wrote:

> On Tuesday, 14 August 2007 00:12, Thomas Voegtle wrote:
> > On Mon, 13 Aug 2007, Rafael J. Wysocki wrote:
> > 
> > > On Monday, 13 August 2007 23:31, Thomas Voegtle wrote:
> > > > On Mon, 13 Aug 2007, Rafael J. Wysocki wrote:
> > > > 
> > > > > On Sunday, 12 August 2007 21:39, Thomas Voegtle wrote:
> > > > > > 
> > > > > > Hi,
> > > > > > 
> > > > > > today I saw this (output from my suspend script):
> > > > > > 
> > > > > > -> woke up at Sun Aug 12 11:39:17 CEST 2007
> > > > > > -> uptime is
> > > > > >  11:39am  up 8 days  0:41,  10 users,  load average: 26.12, 6.35, 2.17
> > > > > > 
> > > > > > 
> > > > > > Then I did a software suspend. After waking up, I saw this:
> > > > > > 
> > > > > > 
> > > > > > -> woke up at Sun Aug 12 14:41:56 CEST 2007
> > > > > > -> uptime is
> > > > > >   2:41pm  up 44 days  9:11,  12 users,  load average: 35.17, 9.17, 3.33
> > > > 
> > > > I just want to add, I built 2.6.23-rc2 on Aug 4th and this happened on Aug 
> > > > 12 and I suspend once a day. And the only thing which was odd was the 
> > > > uptime, nothing else.
> > > > 
> > > > I rebooted with 2.6.23-rc3 today, so the odd uptime is gone.
> > > > Should I try 8 suspend cycles or something to reproduce it again?
> > > 
> > > Well, if you can, please try to do something like this.
> > 
> > I tried 20 suspend cycles, but this time with 
> >  echo reboot > /sys/power/disk
> > 
> > Nothing special happend.
> > 
> > I could try with "echo shutdown" if this makes sense, tomorrow.
> > Just let me know.
> 
> Please try "platform" (ie. the default).  "shutdown" is very similar to
> "reboot", so I think it'll behave correctly.

I do not have platform. => cat /sys/power/disk
test testproc [shutdown] reboot 

Now are 14 days gone and my uptime is 14 days.

Many suspend/resume cycles were made (is there any counter you could see 
how many?).
I tried everything with 2.6.23-rc3 to reproduce this but I could not. I 
will reboot in to 2.6.23-rc4 now.

      Thomas

-- 
 Thomas Vögtle    email: thomas@...gtle-clan.de
 ----- http://www.voegtle-clan.de/thomas ------