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SubjectRe: regression: 2.6.32-rc8 shuts down after reaching critical temperature
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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