Messages in this thread | | | Date | Wed, 2 Dec 2009 16:35:36 +0100 | From | Christoph Hellwig <> | Subject | Re: regression: 2.6.32-rc8 shuts down after reaching critical temperature |
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On Wed, Dec 02, 2009 at 04:07:52PM +0100, Thomas Renninger wrote: > Some more hints you may want to try: > > - Does cpufreq work at all? > Does this dir exist: /sys/devices/system/cpu/cpu*/cpufreq
Yes.
> If temp of: > watch -n1 cat /proc/acpi/thermal_zone/THM1/temperature > goes beyond 96 C > an ACPI processor event must get thrown and this: > /sys/devices/system/cpu/cpu*/cpufreq/scaling_max_freq > will get limited (lower than ../cpufreq/cpuinfo_max_freq).
The speeds change quite constantly under a kernel compile workload, but most of the time it's at 2240800 vs cpuinfo_max_freq which is 2801000
> echo xy >/sys/devices/system/cpu/cpu*/cpufreq/scaling_max_freq > may be bad workaround.
echo 2240800 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq echo 2240800 > /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq
made it survive a kernel compile for me, with an observed maximum temperature of 87 C.
More later..
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