[arch-general] high CPU temperature with 2.6.32

[Dimitrios Apostolou]

On Mon, 4 Jan 2010, Dimitrios Apostolou wrote:

> Hello,
>
> pacman just brought kernel 2.6.32 for my old laptop (P3 500MHz). A strange 
> thing I noticed is that the fan won't go off when CPU is idling like it used 
> to. Using powertop I can see more than 100K wakeups/s (extra_timer_interrupt 
> is first on the list but I think it's irrelevant since it only shows about 
> 100 wakeups), and the CPU is not going into C2 mode at all. Strangely however 
> the cpu is 99% idle, and top doesn't show "system" or "user" cpu usage.

FYI this happens when the module "processor" is inserted, whence I get 
something like "marking tsc as unstable due to halts in idle. Using 
acpi_pm clocksource".

Before that the CPU is idling cool, but from then on I get ~130K wakeups/s 
and the CPU runs hot. My workaround for the moment is booting with 
parameter "clocksource=pit".




>
> Anyone else seeing such behaviour?
>
>
> Thanks in advance,
> Dimitris
>