*** This bug is a duplicate of bug 1554613 ***
https://bugs.launchpad.net/bugs/1554613
New test result today seems to be a intel P-state related problem.
I had reverted everything to their default state, with only the following
changes in TLP settings:
/etc/default/tlp
# Set Intel P-state performance: 0..100 (%)
# Limit the max/min P-state to control the power dissipation of the CPU.
# Values are stated as a percentage of the available performance.
# Requires an Intel Core i processor with intel_pstate driver.
CPU_MIN_PERF_ON_AC=100
CPU_MAX_PERF_ON_AC=100
CPU_MIN_PERF_ON_BAT=100
CPU_MAX_PERF_ON_BAT=100
Now the machine never crashed no matter what tricked I played against
it. This workaround seemed to work both under a normal Linux kernel and
a realtime kernel.
I guess the crash was triggered by flipping the P-state to save power.
In the previous report I was using WebGL Aquarium to do the test, which
has a rather linear stress. But later when I was using Krita, whose
stresses on the CPU comes in spikes, the old workaround failed to work.
When connecting to an external monitor, it also did not crash anyway but
I guess it was using full power all the way because of the dualview
requires that much power.
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https://bugs.launchpad.net/bugs/1535048
Title:
i915 driver seems to cause system crash at random
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