RE: Mobile Celeron with Speedstep ? - speedstep-centrino freezesmachine

RE: Mobile Celeron with Speedstep ? - speedstep-centrino freezesmachine

[Pallipadi, Venkatesh]

This may be due to C-states and probably unrelated to frequency changes.
Check out - http://bugme.osdl.org/show_bug.cgi?id=3219 

Modprobe of cpufreq driver is probably adding acpi/processor.ko.

Thanks,
Venki

>-----Original Message-----
>From: cpufreq-bounces@www.linux.org.uk 
>[mailto:cpufreq-bounces@www.linux.org.uk] On Behalf Of Dominik 
>Brodowski
>Sent: Tuesday, September 21, 2004 9:34 AM
>To: Thomas Renninger
>Cc: cpufreq@www.linux.org.uk
>Subject: Re: Mobile Celeron with Speedstep ? - 
>speedstep-centrino freezesmachine
>
>On Tue, Sep 21, 2004 at 05:55:21PM +0200, Thomas Renninger wrote:
>> modprobe cpufreq_acpi_pdump
>> FATAL: Error inserting cpufreq_acpi_pdump 
>> 
>(/lib/modules/2.6.8-7-default/kernel/drivers/acpi/cpufreq-acpi_
>pdump.ko): 
>> Input/output error
>> ibm9:/usr/src/linux/arch/i386/kernel/cpu/cpufreq #
>> 
>> -> Freeze.
>> Anyone an idea what exactly could cause the freeze, or how 
>to analyse it?
>
>Do I understand it correctly that the system freezes _after_ modprobing
>cpufreq_acpi_pdump fails??? The -EIO result itself isn't 
>strange, it means
>the call to acpi_processor_register_performance() failed which 
>happens on
>several systems.
>
>	Dominik
>
>_______________________________________________
>Cpufreq mailing list
>Cpufreq@www.linux.org.uk
>http://www.linux.org.uk/mailman/listinfo/cpufreq
>

Re: Mobile Celeron with Speedstep ? - speedstep-centrino freezesmachine

[Thomas Renninger]

Pallipadi, Venkatesh wrote:
> This may be due to C-states and probably unrelated to frequency changes.
> Check out - http://bugme.osdl.org/show_bug.cgi?id=3219 
> 
> Modprobe of cpufreq driver is probably adding acpi/processor.ko.

Yes, thanks. Patch (disabling C2) works:
    *C1:                  promotion[--] demotion[--] latency[000] 
usage[00183115]
     C2:                  <not supported>
     C3:                  promotion[--] demotion[--] latency[250] 
usage[00000000]


> 
> Thanks,
> Venki
> 
> 
>>-----Original Message-----
>>From: cpufreq-bounces@www.linux.org.uk 
>>[mailto:cpufreq-bounces@www.linux.org.uk] On Behalf Of Dominik 
>>Brodowski
>>Sent: Tuesday, September 21, 2004 9:34 AM
>>To: Thomas Renninger
>>Cc: cpufreq@www.linux.org.uk
>>Subject: Re: Mobile Celeron with Speedstep ? - 
>>speedstep-centrino freezesmachine
>>
>>On Tue, Sep 21, 2004 at 05:55:21PM +0200, Thomas Renninger wrote:
>>
>>>modprobe cpufreq_acpi_pdump
>>>FATAL: Error inserting cpufreq_acpi_pdump 
>>>
>>
>>(/lib/modules/2.6.8-7-default/kernel/drivers/acpi/cpufreq-acpi_
>>pdump.ko): 
>>
>>>Input/output error
>>>ibm9:/usr/src/linux/arch/i386/kernel/cpu/cpufreq #
>>>
>>>-> Freeze.
>>>Anyone an idea what exactly could cause the freeze, or how 
>>
>>to analyse it?
>>
>>Do I understand it correctly that the system freezes _after_ modprobing
>>cpufreq_acpi_pdump fails??? The -EIO result itself isn't 
>>strange, it means
>>the call to acpi_processor_register_performance() failed which 
>>happens on
>>several systems.

I made cpufreq_acpi_pdump depending on processor module by mistake :'( , 
sorry.

    Thomas