Why didn't you mention this earlier when the thread was active :| ?
I still have the issue. Are you sure its about pcmcia and yenta_socket? If so,
why does unloading these modules not help ?
The only workaround for me at this moment are these 2 :
1) Either disable smp with maxcpus=1 in bootloader kernel commandline, which
probably is not the nicest option
or
2) Don't enable higher c-states, aka c2 and c3. What I do is use high res
timer patches (also called cpuidle patches/framework, which will be included in
2.6.23 by default), and compile both the governors (menu and ladder) as modular
and don't load any governor. (The moment I load any governor, tsc is marked
unstable due to possible halt in c2.) Not enabling higher c-states c2 and c3
causes an extra power consumption of 2 watts, but prevents the cpu from going
into bad state.
Kelly Anderson <[EMAIL PROTECTED]> wrote: I might have good news for you. It's
at least something to look at. I
had the same problem a month or so ago and it was making me tear my hair
out. High wakeup counts and nothing seemed to account for them. In a
nutshell what I did was to blacklist pcmcia and yenta_socket. Since
then I have not had a problem a with the phantom wakeups. This is great
if you're not using pcmcia, not so great if you need it. Just create a
pcmcia file in /etc/modprobe.d with the following lines:
blacklist pcmcia
blacklist yenta_socket
See if that fixes it. If so maybe the problem should be forwarded to
the kernel devs.
RafaÅ Krypa wrote:
> Hello,
> I have seen this phenomenon several times already and want to ask you
> about its cause. From time to time I am experiencing my Intel Core Duo
> T2250 CPU going mad. The average wakeups per second exceeds 22k (!).
> Here comes the output of powertop -d:
>
> PowerTOP 1.8 (C) 2007 Intel Corporation
>
> Collecting data for 15 seconds
> Cn Avg residency
> C0 (cpu running) (67.3%)
> C1 0.0ms ( 0.0%)
> C2 0.0ms (23.4%)
> C3 0.0ms ( 9.3%)
> P-states (frequencies)
> 1.74 Ghz 0.0%
> 1333 Mhz 0.0%
> 1067 Mhz 0.0%
> 800 Mhz 100.0%
> Wakeups-from-idle per second : 22379.8 interval: 15.0s
> Power usage (ACPI estimate): 14.5W (3.5 hours)
> Top causes for wakeups:
> 24.6% ( 11.5) hald-addon-cpuf : queue_delayed_work_on
> (delayed_work_timer_fn)
> 13.1% ( 6.1) Xorg : do_setitimer (it_real_fn)
> 10.4% ( 4.9) : extra timer interrupt
> 10.3% ( 4.8) : acpi
> 6.4% ( 3.0) multiload-apple : schedule_timeout (process_timeout)
> 6.3% ( 2.9) : queue_delayed_work_on
> (delayed_work_timer_fn)
> 3.7% ( 1.7) gnome-panel : schedule_timeout (process_timeout)
> 2.4% ( 1.1) : eth0
> 2.3% ( 1.1) Xorg : schedule_timeout (process_timeout)
> 2.1% ( 1.0) dhcdbd : schedule_timeout (process_timeout)
> 2.1% ( 1.0) glunarclock-app : schedule_timeout (process_timeout)
> 2.1% ( 1.0) cpufreq-applet : schedule_timeout (process_timeout)
> 2.1% ( 1.0) nm-applet : schedule_timeout (process_timeout)
> (...)
>
>
> As you see, no process is responsible for these wakeups. And it is not a
> simple display error of powertop:
>
> tassadar:~# cat /proc/acpi/processor/CPU0/power
> active state: C2
> max_cstate: C8
> bus master activity: 00000000
> maximum allowed latency: 8000 usec
> states:
> C1: type[C1] promotion[C2] demotion[--]
> latency[001] usage[00000010] duration[00000000000000000000]
> *C2: type[C2] promotion[C3] demotion[C1]
> latency[001] usage[1101632640] duration[00000000054670700051]
> C3: type[C3] promotion[--] demotion[C2]
> latency[057] usage[317590412] duration[00000000103865822447]
>
>
> Output for the second core is similar.
> Please notice very high usage counters for C2 and C3 - and this is only
> with 1 day uptime.
> I am currently running 2.6.22.3 kernel (preparing for an update) but I
> can remember seeing this with other kernel versions too.
> The problem is unfortunately non-deterministic. This strange behavior of
> CPU happens from time to time and after reboot everything is back to
> normal. I cannot notice any particular actions leading into this.
> Could you please help me with finding and eliminating cause of this
> problem?
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Power mailing list
> [email protected]
> http://www.bughost.org/mailman/listinfo/power
>
_______________________________________________
Power mailing list
[email protected]
http://www.bughost.org/mailman/listinfo/power
---------------------------------
Looking for a deal? Find great prices on flights and hotels with Yahoo!
FareChase._______________________________________________
Power mailing list
[email protected]
http://www.bughost.org/mailman/listinfo/power
