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
