https://bugzilla.kernel.org/show_bug.cgi?id=42725
Zhang Rui <rui.zh...@intel.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |REJECTED
Resolution| |DOCUMENTED
Summary|Slow 2.6.38-8 - 3.2.0-12 |bogus passive trip point
|unless acpi=off - Asus N51V |throttles the processors -
|laptop |Asus N51V laptop
--- Comment #90 from Zhang Rui <rui.zh...@intel.com> 2012-11-07 02:43:31 ---
Hah,
I see what the problem is.
1) the passive trip point temperature is a bogus value which always equals 0C.
2) _PSL uses alias name of processors
a) the alias name is not supported in earlier kernels like 2.6.35, so Linux
thinks the passive trip point is invalid.
b) alias name is supported in later kernel, thus the bug in 1) is exposed to
users.
so my suggestion is to use thermal.nopsv=-1 to get rid of the bogus passive
trip point.
If you really want to use processors to cooling your system, you can
"echo temp > /sys/class/thermal_zone0/passive", temp is the millidegree value
that you want to start throttling at.
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