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Bug#521944: linux-image-2.6.29-1-686: Excessive number of interrupts from hrtimer_start_expires



On Wed, Feb 03, 2010 at 04:37:48AM +0000, Ben Hutchings wrote:
> On Wed, 2010-02-03 at 00:13 -0200, Renato S. Yamane wrote:
> > Em 02-02-2010 19:16, maximilian attems escreveu:
> > > Squeeze will release with 2.6.32 can anyone of you still
> > > reproduce this?
> > >
> > > also please make sure to use latest powertop, aka
> > > ii  powertop       1.13~pre201001 Linux tool to find out what is using power
> > 
> > $ uname -a
> > Linux mandachuva 2.6.30-2-686 #1 SMP Fri Dec 4 00:53:20 UTC 2009 i686 
> > GNU/Linux
> > 
> > Where is Linux-Kernel 2.6.32?
> 
> It's in unstable and testing (but not backports yet).
> 
> > $ dpkg -l | grep powertop
> > ii  powertop                             1.11-1
> > 
> > And yes, this bug is still present.
> > 
> > Powertop show me 210W power used (maybe ten times higher??) and my 
> 
> This figure is not believable.
> 
> > battery goes from 96% to 82% in only 17min (I use a 9 cell battery, wich 
> > be enough by ~4h, but using Debian Lenny it's fully "eated" in only ~2h).
> 
> Please send the output of 'top -b -n 1' and 'powertop -d'.

this powertop is outdated, you need to use the updated powertop,
which is in squeeze or the sid. the old one will provide bogus
values on current linux images.

as we already got an expected report that this bug is fixed in 2.6.32,
will wait a day or so before closing.



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