Re: [opensuse-kernel] kernel 3.8 and 3.9 crash/reboot
Please keep the list included so that others can help too. Le Friday 03 May 2013 à 11:53 +0200, Klier Rainer a écrit :
Am 03.05.2013 11:08, schrieb Jean Delvare:
Did you notice any fan spinning difference between kernel 3.7 and kernel 3.8 (for example fan spinning with 3.7 and no longer with 3.8)?
YES! you are right!
at 3.7 the fan runs the whole time. at 3.8/3.9 it starts and stops from time to time, and is off most of the time.
this is one of the first things i noticed, when i tried 3.8 the first time.
so it sounds very plausible to me, that this can be the problem.
Check in the BIOS if there is any option related to thermal management or fan speed. This may help you work around the issue until it gets properly fixed, and also hint at what the problem may be.
Install sensors and see if it reports some temperature value. Maybe run sensors-detect to get additional temperature sensors (from the coretemp driver most probably.) Compare the temperatures (and any thermal setting you can find) between kernels 3.7 and 3.8.
Also compare powertop output between kernels, to make sure that C states and cpufreq are working the same.
thanks for the tips.
do you know a way to force the fan to run the whole time? with 3.7 it does it automatically, but not with 3.8/3.9. if i know how to control the fan, ich can force it to work the whole time with 3.8/3.9.
I don't think there is any generic way to force an ACPI-controlled fan to full speed. What you can do is compare the contents and attributes of /sys/class/thermal. You should see active and passing cooling devices as well as thermal zones. Maybe something is missing or wrong with kernel 3.8+. For example, trip points may be wrong. -- Jean Delvare Suse L3 -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org
Am 03.05.2013 13:34, schrieb Jean Delvare:
Please keep the list included so that others can help too.
apologies.
so it sounds very plausible to me, that this can be the problem.
Check in the BIOS if there is any option related to thermal management or fan speed. This may help you work around the issue until it gets properly fixed, and also hint at what the problem may be.
i found a setting "fan always on when connected to ac". this was off. i switched it on.
I don't think there is any generic way to force an ACPI-controlled fan to full speed.
:-( i started sensors-detect. this generated /etc/sysconfig/lm_sensors and /usr/lib/systemd/system/lm_sensors.service. maybe this will help.
What you can do is compare the contents and attributes of /sys/class/thermal. You should see active and passing cooling devices as well as thermal zones. Maybe something is missing or wrong with kernel 3.8+. For example, trip points may be wrong.
ok, i already found this. i am currently cheking these values. in /sys/class/thermal/thermal_zone0 i found trip_point_0_temp with a value of 105000 (=105°c) and trip_point_0_type with a vleue of "critical". currently sensors reports this: acpitz-virtual-0 Adapter: Virtual device temp1: +82.0°C (crit = +105.0°C) temp2: +60.0°C (crit = +105.0°C) temp3: +44.7°C (crit = +102.0°C) temp4: +30.0°C (crit = +110.0°C) temp5: +70.0°C (crit = +256.0°C) temp6: +66.0°C (crit = +102.0°C) coretemp-isa-0000 Adapter: ISA adapter Core 0: +65.0°C (high = +100.0°C, crit = +100.0°C) Core 1: +65.0°C (high = +100.0°C, crit = +100.0°C) i think "temp1" corresponds to "thermal_zone0". so it seems, that at 105°C the fan has to start, and currently it only has 82°C. i will watch that. i wish i had a possibility to set up "trip_point_0_temp" to 80°C..... -- Rainer Klier Research & Development xyzmo Software GmbH, SIGNificant E-Signature Solutions A-4052 Ansfelden, Haiderstraße 23 Tel.: +43 7229 88060-0, E-Mail: rainer.klier@xyzmo.com
participants (2)
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Jean Delvare -
Klier Rainer