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SubjectRe: v4.8-rc1: thinkpad x60: running at low frequency even during kernel build
Date
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()

?

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

Thanks,
Srinivas
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