https://bugzilla.kernel.org/show_bug.cgi?id=45291
Len Brown <l...@kernel.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
CC| |l...@kernel.org
Summary|acpi_cpufreq module causes |high frequency causes
|bogus CPU temperature which |thermal shutdown - Lenovo
|causes system shutdown |T410
--- Comment #1 from Len Brown <l...@kernel.org> 2013-01-29 04:14:42 ---
My guess is that you have a fan full of dust.
When you clean it out, you'll not be able to reproduce this bug.
(so don't clean it out till we fix the bug:-)
I also venture that cpufreq and turbo mode are working properly,
and it was "just luck" that they were screwed up and not running
properly so that you ran artificially slow and thus didn't
previously run into the thermal issue. But lets check...
note thermal.nocrt=1 should simply disable the _action_ on hitting
hot and critical trip points. Keep this parameter in place.
Please show the output from
grep . /sys/class/thermal/*/*
or if you have one...
grep . /proc/acpi/thermal_zone/*/*
The question is if you have a passive trip point below
the critical trip point where we should have throttled
to prevent going critical. My guess is that you do,
and that windows responded better to it than Linux did.
If you attach the output from acpidump,
that may also be helpful.
Get turbostat from the kernel source tree, tools/power/x86/turbostat/
and use it to monitor temperature and frequency.
Please invoke it with the -v option to show what frequency range
this processor has, and then show its output with
and without acpi-cpufreq loaded.
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