2.6.24 - maaaassive amount of wakeups + can't get into c3

[Peter F. Patel-Schneider]

I see this sometimes as well (like a couple of minutes ago) on a T60p 
running Fedora 8.  I've dug around to try to find a reason, but I've 
never found one that I can use to alleviate the problem.  It may be 
related to the graphics card - right now mine is running at 85degreesC.

If you find out anything, let me know.

There are threads in the powertop mailing list that may be about this:

http://www.bughost.org/pipermail/power/2007-May/000337.html
http://www.bughost.org/pipermail/power/2007-October/000998.html

peter


Barteq wrote:
> Hello.
>
> I've got problem with the newst ubuntu disribution Hardy Heron. It's based  
> on kernel 2.6.24 (exactly 2.6.24-12-generic - x86). Ubuntu used to be a  
> good choice for laptop but after seeing powertop result I'm thinking about  
> distor change..
>
> Please look at the results. It's an idle system with xorg running. Machine  
> is T8300 based lenovo t61 with nvidia NVS 140M graphics card. Wifi is  
> intel 4965 card with iwl 1.2.0 driver. Power usage was about 16W on older  
> kernel, but now it is 22 up to 25W in idle. Additional abiility to get  
> into C3 is closed to 0. Of course sometimes it works quite nice, but after  
> some minutes it's ALWAYS getting wired. Do you noticed such a problem with  
> this kernel? I've googled this issue many times but with no success.. It's  
> also on ubuntu launchpad reported as a bug with 'in progress' state -  
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/177895
>
> PowerTOP 1.9    (C) 2007 Intel Corporation
>
> Collecting data for 15 seconds
> Cn	          Avg residency
> C0 (cpu running)        (46,5%)
> C1		  0,0ms ( 0,0%)
> C2		  0,0ms (49,7%)
> C3		  0,0ms ( 3,8%)
> P-states (frequencies)
>    2,41 Ghz     0,7%
>    2,40 Ghz     0,0%
>    2,00 Ghz     0,0%
>     800 Mhz    99,3%
> Wakeups-from-idle per second : 40905,2	interval: 15,0s
> Power usage (ACPI estimate): 22,9W (1,6 hours)
> Top causes for wakeups:
>    92,9% (2641,7)      <kernel IPI> : Rescheduling interrupts
>     1,9% ( 54,4)       <interrupt> : acpi
>     1,7% ( 48,3)       <interrupt> : extra timer interrupt
>     1,4% ( 40,3)             opera : schedule_timeout (process_timeout)
>     0,7% ( 20,3)       <interrupt> : iwl4965
>     0,4% ( 10,6)       <interrupt> : ahci
>     0,3% (  8,0)   <kernel module> : usb_hcd_poll_rh_status (rh_timer_func)
>     0,1% (  1,9)    gnome-terminal : schedule_timeout (process_timeout)
>     0,1% (  1,7)    wpa_supplicant : schedule_timeout (process_timeout)
>     0,1% (  1,5)       <interrupt> : PS/2 keyboard/mouse/touchpad
>     0,0% (  1,3)           kcryptd : blk_plug_device (blk_unplug_timeout)
>     0,0% (  1,1)      <kernel IPI> : TLB shootdowns
>     0,0% (  1,0)       <interrupt> : uhci_hcd:usb5, yenta, nvidia
>     0,0% (  1,0)              Xorg : nv_start_rc_timer (nv_kern_rc_timer)
>     0,0% (  1,0)            dhcdbd : schedule_timeout (process_timeout)
>     0,0% (  1,0)    cpufreq-applet : schedule_timeout (process_timeout)
>     0,0% (  1,0)         nm-applet : schedule_timeout (process_timeout)
>     0,0% (  0,9)    NetworkManager : schedule_timeout (process_timeout)
>     0,0% (  0,9)    sensors-applet : schedule_timeout (process_timeout)
>     0,0% (  0,6)        pulseaudio : schedule_timeout (process_timeout)
>     0,0% (  0,5)           iwl4965 : ieee80211_sta_work  
> (ieee80211_sta_timer)
>     0,0% (  0,5)       <interrupt> : eth0
>     0,0% (  0,5)   <kernel module> : neigh_table_init_no_netlink  
> (neigh_periodic_timer)
>     0,0% (  0,5)    NetworkManager : e1000_intr_msi (e1000_watchdog)
>     0,0% (  0,4)       gnome-panel : schedule_timeout (process_timeout)
>     0,0% (  0,4)     <kernel core> : neigh_table_init_no_netlink  
> (neigh_periodic_timer)
>     0,0% (  0,3)           syslogd : schedule_timeout (process_timeout)
>     0,0% (  0,3)   gnome-power-man : schedule_timeout (process_timeout)
>     0,0% (  0,2)   update-notifier : schedule_timeout (process_timeout)
>     0,0% (  0,1)              Xorg : do_setitimer (it_real_fn)
>     0,0% (  0,1)         sm-notify : do_journal_end (delayed_work_timer_fn)
>     0,0% (  0,1)   operapluginclea : schedule_timeout (process_timeout)
>     0,0% (  0,1)          metacity : schedule_timeout (process_timeout)
>     0,0% (  0,1)              Xorg : schedule_timeout (process_timeout)
>     0,0% (  0,1)     <kernel core> : page_writeback_init (wb_timer_fn)
>     0,0% (  0,1)   gnome-volume-ma : schedule_timeout (process_timeout)
>     0,0% (  0,1)     <kernel core> : end_that_request_last (laptop_timer_fn)
>     0,0% (  0,1)         iwl4965/0 : sta_info_start (sta_info_cleanup)
>     0,0% (  0,1)     <kernel core> : ndisc_dst_alloc (fib6_run_gc)
>     0,0% (  0,1)              Xorg : neigh_update (neigh_timer_handler)
>
> Regards,
> barteq
>
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