Hi! > > Let me try v4.9-rc2... that works ok (cpus at the high frequency > > during the kernel build). Unfortunately that sends my cpus to 99C > > temperature range (and eventually forces emergency shutdown). > > This we have to debug. Do you see same line like > " > /sys/devices/system/cpu/cpu0/cpufreq/bios_limit:1000000 > " > If not we need > to find out why. I'd prefer mails over bugzilla for now... 4.9-rc2 has bios_limit: pavel@duo:~$ cat /sys/devices/system/cpu/cpu0/cpufreq/bios_limit 1833000 and it has thermal zones: /sys/devices/virtual/thermal/thermal_zone0/trip_point_0_temp 127000 /sys/devices/virtual/thermal/thermal_zone0/trip_point_0_type critical /sys/devices/virtual/thermal/thermal_zone1/trip_point_0_temp 97000 /sys/devices/virtual/thermal/thermal_zone1/trip_point_0_type critical /sys/devices/virtual/thermal/thermal_zone1/trip_point_1_temp 92500 /sys/devices/virtual/thermal/thermal_zone1/trip_point_1_type passive ..so it should slow down CPU at 92C. So lets push the temperature up a bit... sudo watch cat /proc/acpi/ibm/thermal /sys/devices/system/cpu/cpu0/cpufreq/bios_limit /sys/devices/virtual/thermal/thermal_zone1/temp /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq temperatures: 98 49 -128 85 28 -128 28 -128 49 58 -128 -128 -128 -128 -128 -128 1833000 95000 1833000 Hmm. bios_limit does not seem to change, even when the temperature is clearly above the trip point. (It is also interestng that acpi/ibm reports bigger temperatures than /sys/devices/virtual/thermal/thermal_zone1/temp . I have seen 103C there.) Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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