Re: v4.8-rc1: thinkpad x60: running at low frequency even during kernel build

[Pavel Machek]

On Fri 2016-11-04 23:20:53, Pandruvada, Srinivas wrote:
> On Fri, 2016-11-04 at 23:16 +0100, Pavel Machek wrote:
> > Hi!
> > 
> 
> [...]
> 
> > So we seem to have thermal or ACPI regression in v4.9-rc3.
> > 
> It is possible. Can you add either add printk
> in acpi_processor_ppc_has_changed() or use ftrace and see do you get to
> these functions
> 
> acpi_processor_ppc_init()
> acpi_processor_ppc_has_changed()
> acpi_processor_ppc_notifier()
> 
> ?

Ok, can do, let me recompile and reboot.

> When temperature limit is reached acpi_processor_ppc_notifier() should
> be called.

No, that's not correct for ACPI passive trip points, is it? If I
recall correctly, those should be monitored even when temperature is
below them so that it does not reach them...?

								Pavel

-- 
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