lkml.org 
[lkml]   [2013]   [May]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subject3.9.0 + CONFIG_X86_INTEL_PSTATE=y -> ThinkPad T420 with i5 lost ACPI functionality
The following file doesn't exists at my Gentoo Linux
/sys/devices/system/cpu/cpufreq/ondemand/ignore_nice_load
in 3.9.0 if I activate CONFIG_X86_INTEL_PSTATE=y

That means, that a command like

$> echo 1 > /sys/devices/system/cpu/cpufreq/ondemand/ignore_nice_load

in /etc/rc.local is now no longer working.
A high fan + high temperature are the result, even if just the BOINC client
is run with low prio (nice 19) in the back ground.

Manually loading the missing module won't work too :

$> modprobe acpi_cpufreq
modprobe: ERROR: could not insert 'acpi_cpufreq': Device or resource busy

Is the behaviour a bug or a feature ?
In the later case: How can I achieve the previous behaviour back ?

This issue might affect the RH EL kernel too [1] where I observed a similar behaviour.


[1] http://elrepo.org/bugs/view.php?id=379

--
MfG/Sincerely
Toralf Förster
pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2013-05-03 19:41    [W:0.072 / U:0.520 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site