RE: 2.6.23-rc3-mm1

["Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>]

>-----Original Message-----
>From: linux-acpi-owner@vger.kernel.org 
>[mailto:linux-acpi-owner@vger.kernel.org] On Behalf Of 
>Pallipadi, Venkatesh
>Sent: Friday, August 24, 2007 5:14 PM
>To: Andrew Morton; Tilman Schmidt
>Cc: linux-kernel@vger.kernel.org; Thomas Gleixner; john 
>stultz; Andi Kleen; Len Brown; linux-acpi@vger.kernel.org; 
>Dave Jones; Thomas Renninger
>Subject: RE: 2.6.23-rc3-mm1
>
> 
>>> - in /var/log/warn:
>>> 
>>> Aug 25 00:44:00 xenon powersaved[5356]: WARNING 
>>(CpufreqManagement:51) No capability cpufreq_control
>>> Aug 25 00:44:00 xenon powersaved[5356]: WARNING 
>>(CpufreqManagement:51) No capability cpufreq_control
>>
>>Dunno, there're some significant-looking cpufreq changes in 
>>there, such as
>>cpufreq-allow-ondemand-and-conservative-cpufreq-governors-to-be
>>-used-as-default.patch.
>>Maybe we went and chose a different governor for you?
>>
>
>This is probably not related to cpufreq changes itself. Looks 
>like it is
>coming due to
>
>>> FATAL: Error inserting processor 
>>(/lib/modules/2.6.23-rc3-mm1-testing/kernel/drivers/acpi/proces
>>sor.ko): Input/output error
>>> WARNING: Error inserting processor 
>>(/lib/modules/2.6.23-rc3-mm1-testing/kernel/drivers/acpi/proces
>>sor.ko): Input/output error
>
>Not sure why this is failing though. Don't recall any significant
>changes in processor.ko recently apart from CPUIDLE stuff.
>

This is indeed related to CPUIDLE.

Tilman: Can you configure CONFIG_CPU_IDLE in your config (under Power
Management option) and double check that the frequency part works after
that.

Andrew: Adam Belay sent a recent patchset on linux-pm and linux-acpi and
one of the patches of that addresses this issue (CPUIDLE: load ACPI
properly when CPUIDLE is disabled). Those patches should come to mm soon
through acpi-test.

Thanks,
Venki
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