linux-kernel - Re: [BUG] Something goes wrong with timer statistics.

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Message-Id: <1180479065.19814.6.camel@pi.pomac.com>
Date:	Wed, 30 May 2007 00:50:55 +0200
From:	Ian Kumlien <iank@...dband.net>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	Linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [BUG] Something goes wrong with timer statistics.

On ons, 2007-05-30 at 00:38 +0200, Thomas Gleixner wrote:
> On Wed, 2007-05-30 at 00:24 +0200, Michal Piotrowski wrote:
> > Hi Ian,
> > 
> > (Thomas "The Wizard of Time" added to CC :))
> 
> Added more wizards :)
> 
> > On 29/05/07, Ian Kumlien <iank@...dband.net> wrote:
> > > Hi,
> > >
> > > As the daystar sets, i try to play some with my new would be
> > > firewall/server, but since this will be running for quite some time i
> > > have been experimenting with powertop to find out what i can do to limit
> > > it's power usage.
> > >
> > > But, if i run powertop for too long or a few times to many... this
> > > happens:
> > > http://pomac.netswarm.net/pics/kernel_panic.jpg
> 
> This was reported before. It's incredibly hard to reproduce.
> 
> Ian, is this happening reproducible ?

Seems like it, i haven't actually TRIED to crash yet... 
But i can try if i don't have to crash in the future =)

(The machine is just a motherboard lying on the floor with some disks
attached, so i have to bring out my pocket knife and short circuit the
right pins =))

> > > If i don't run powertop, it is rock solid... Compiling for hours,
> > > running memtest for hours etc etc...
> > 
> > (Where is my magic ball?)
> > 
> > Let me guess - Pentium 4 with HT?
> 
> I might be wrong, but it's a newer core duo thingy.
> 
> 	tglx
> 
-- 
Ian Kumlien <pomac () vapor ! com> -- http://pomac.netswarm.net
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