On Wednesday 03 November 2010 07:53:08 Vitus Jensen wrote: > On Tue, 2 Nov 2010, Auke Kok wrote: > > > On 11/02/10 07:40, Vitus Jensen wrote: > >> > >> Since some kernel versions I notice very high wakeup rates during idle ... > >> while the reasons for the wakeup stay at reasonable low numbers. In the > >> 'powertop -d' output below it's 27463 wakeups/sec but the highest number > >> for any reason is 48. How do I find out what causes the wakeups? They > >> are actually there because the machine is using ~2W more than usual. > >> > >> My usual kernel is 2.6.27, it's shows ~100 wakeups (X11, Wifi+powersave) > >> > >> On this 2.6.36 powertop most of the time reports 1.000-200.000 wakeups > >> during idle. It may get to 100 (X11, Wifi) or ~50 (no X11, no Wifi), > >> seldomly. > > > > I've seen this on specific pieces of hardware (in my case, I had a > > Lenovo T43 that went apenuts anyway, and I got rid of it). > > > > Is this older hardware? It's not uncommon for those - but shouldn't > > happen anymore on core2 level hardware and newer. > > It's a Thinkpad R51e with Pentium M 1.73 > (http://www.thinkwiki.org/wiki/Category:R51e).
I remember the R51e to have ACPI GPE address issues. You may want to look at: https://bugzilla.kernel.org/show_bug.cgi?id=8246 Thomas _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
