acpi_processor.c - kernel 2.6.1

[christian graf <chr.graf-Mmb7MZpHnFY@public.gmane.org>]

Hi,

reading the /usr/src/linux-2.6.1/drivers/acpi/processor.c
i thought the kernel should set the state dynamically, based on the
load. Maybe it is possible to set the processor-state of my centrino
manually. Can please anybody tell me how to get it right?

The reason I'm asking is, that once I do load the processor.ko module,
my Centrino switches immediately into C2-state. It never switches back
to C1 state, even under heavy load like compiling the kernel.

I think the kernel should switch back from C2 to C1 state from alone????

Please ask me whatever you need to help me swtiching back into C1 state.

christian



cat /proc/acpi/processor/CPU0/power
active state:            C2
default state:           C1
bus master activity:     ffffffff
states:
    C1:                  promotion[C2] demotion[--] latency[000]
usage[00000010]
   *C2:                  promotion[C3] demotion[C1] latency[001]
usage[00905291]
    C3:                  promotion[--] demotion[C2] latency[185]
usage[00000000]


behn-GKM3wtwTCu0@public.gmane.org:~$ cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 9
model name      : Intel(R) Pentium(R) M processor 1600MHz
stepping        : 5
cpu MHz         : 599.964
cache size      : 1024 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr mce cx8 apic sep mtrr pge mca
cmov pat clflush dts acpi mmx fxsr sse sse2 tm pbe tm2 est
bogomips        : 1185.79






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