https://bugzilla.kernel.org/show_bug.cgi?id=36182

--- Comment #41 from Martin Mokrejs <mmokr...@gmail.com> ---
(In reply to Martin Mokrejs from comment #39)

Just to update my experience.

Few months later even my CPU was replaced, because it baked one of my two RAM
modules. I did not realize that in august when just the cooller was exchanged
and more glue applied. Now, 6 months later I could conclude I just had a bad
luck with a bad mobile CPU. It was using the CPU up to its maximum limits and
as it was heating a lot, sometimes it tripped over the power limits. Before
cooler replacements it tripped over the temperature limits instead. However, I
should worried a lot more about the segfaults. Luckily, the CPU was doing worse
and worse and the external HDMI output just stopped giving output signal. With
the new CPU, they are just gone.

Under 3.10.12 which I use currently I got it just once during a long-term CPU
intensive job (lasting days). Only these 4 lines in total were logged when CPU
was taking a lot of power while still under thermal threshold. A good sign my
cooler is doing well.

[66841.449507] CPU1: Package power limit notification (total events = 1)
[66841.449509] CPU0: Package power limit notification (total events = 1)
[66841.450084] CPU0: Package power limit normal
[66841.450086] CPU1: Package power limit normal



# cat /etc/local.d/baselayout1.start

echo 0 > /sys/devices/system/cpu/cpu2/online
echo 0 > /sys/devices/system/cpu/cpu3/online

for CPUFREQ in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do [ -f
$CPUFREQ ] || continue; echo -n performance > $CPUFREQ; done

sysctl kernel.sched_child_runs_first=1

cpupower --cpu 0 set -b 0
cpupower --cpu 1 set -b 0

#

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