https://bugzilla.novell.com/show_bug.cgi?id=335086#c3 --- Comment #3 from Morten Welinder 2007-10-24 16:38:12 MST --- # cat /proc/acpi/processor/*/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[01185035] duration[00000000000033151654] C3: type[C3] promotion[--] demotion[C2] latency[057] usage[00301205] duration[00000000000010402063] # echo 2 >/sys/module/processor/parameters/max_cstate # Does it work normal then? Nope. In fact, it appears to double to wakeup count to nearly 60000/s. # echo 1 >/sys/module/processor/parameters/max_cstate That seems to work -- in the sense, that the wakeup count is not insane. According to topertop, the machine stays in C0 all the time.

What kind of CPU/machine is that?

Toshiba Satellite M105-S3041 # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 14 model name : Genuine Intel(R) CPU T1350 @ 1.86GHz stepping : 8 cpu MHz : 797.903 cache size : 2048 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe constant_tsc up pni monitor est tm2 xtpr bogomips : 3728.19 clflush size : 64 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=335086#c5 --- Comment #5 from Thomas Renninger 2007-10-27 17:47:50 MST --- Morton: Has there already been a linux/kernel running on the system not showing this behaviour? E.g. 10.2? Maybe you can try the latest 2.6.23 kernel from: ftp://ftp.suse.com/pub/projects/kernel/kotd/HEAD/{i386,x86_64}/kernel-default...rpm This bug is probably related, but there it only seems to happen after s2ram: bug #334170 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=335086 User suse@bugs.jan.ritzerfeld.net added comment https://bugzilla.novell.com/show_bug.cgi?id=335086#c7 Jan Ritzerfeld changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |suse@bugs.jan.ritzerfeld.net --- Comment #7 from Jan Ritzerfeld 2007-12-23 09:33:09 MST --- I do not know whether my comment will help in this case but I had the same problem of the wake-up rate increasing dramatically after some arbitrary amount of time. In my case this was independent of the use s2ram, in contrast to Bug #334170. For me, "yenta_socket" triggers the problem, see also https://bugs.launchpad.net/ubuntu/+bug/145377 Since I do not use PCMCIA at all, I created the following blacklist as /etc/modprobe.d/blacklist.pcmcia: blacklist pcmcia blacklist yenta_socket blacklist rsrc_nonstatic blacklist pcmcia_core -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=335086 User trenn@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=335086#c9 Thomas Renninger changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO Info Provider| |mwelinder@gmail.com Summary|Too many wakeups with "processor" kernel module |Too many wakeups with "processor" kernel module | |- yenta_socket driver is the cause --- Comment #9 from Thomas Renninger 2008-01-28 05:48:21 MST --- Can you please try with OpenSUSE 11.0 Alpha (Version Alpha 1 is the latest currently). Now we can: - easier add code, as the risk to break other machines is not that sever -> Alpha is for testing - get support from mainline. If this problem is still in latest Alpha, this means mainline kernel is affected and we migth get additional help here. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=335086 User suse@bugs.jan.ritzerfeld.net added comment https://bugzilla.novell.com/show_bug.cgi?id=335086#c11 Jan Ritzerfeld changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|NORESPONSE | --- Comment #11 from Jan Ritzerfeld 2008-05-04 12:10:04 MST --- Eventually, I did a 11.0 Beta2 installation today. The "too many wakeups" is still there. After about an hour, there are more than 10,000 wakeups from idle per second. However, I have to verify that blacklisting the modules above (Comment #7) helps. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=335086 User suse@bugs.jan.ritzerfeld.net added comment https://bugzilla.novell.com/show_bug.cgi?id=335086#c12 Jan Ritzerfeld changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |REOPENED Info Provider|suse@bugs.jan.ritzerfeld.net | --- Comment #12 from Jan Ritzerfeld 2008-05-05 12:08:49 MST --- After an hour with the workaround of Comment #7, the wakeup rate is still normal (~100 per second). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=335086 Thomas Renninger changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |ASSIGNED -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=335086 User suse@bugs.jan.ritzerfeld.net added comment https://bugzilla.novell.com/show_bug.cgi?id=335086#c15 Jan Ritzerfeld changed: What |Removed |Added ---------------------------------------------------------------------------- Component|Kernel |Kernel Product|openSUSE 10.3 |openSUSE 11.0 --- Comment #15 from Jan Ritzerfeld 2008-07-30 10:07:59 MDT --- Still valid for 11.0. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=335086 User trenn@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=335086#c17 Thomas Renninger changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |ASSIGNED --- Comment #17 from Thomas Renninger 2008-07-30 11:58:52 MDT --- Yes this indeed could be it. You may want to wait for next 11.1 test release and give it a try. It should be 2.6.27 based and have the fix included. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=335086 User yakui.zhao@intel.com added comment https://bugzilla.novell.com/show_bug.cgi?id=335086#c19 Yakui Zhao changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |yakui.zhao@intel.com --- Comment #19 from Yakui Zhao 2008-08-03 20:35:39 MDT --- Will you please try the boot option of "idle=nomwait" on the kernel of 2.6.27-rc1 and see whether the problem still exists? Thanks. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=335086 User pavel@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=335086#c21 Pavel Machek changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |pavel@novell.com --- Comment #21 from Pavel Machek 2008-09-29 05:29:15 MDT --- Any news here? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.