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

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Message-Id: <200708140035.24240.rjw@sisk.pl>
Date:	Tue, 14 Aug 2007 00:35:23 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Thomas Voegtle <tv@...96.de>
Cc:	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 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.

Greetings,
Rafael


-- 
"Premature optimization is the root of all evil." - Donald Knuth
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