Re: 3.13.?: Strange / dangerous fan policy...

From: Manuel Krause
Date: Fri Mar 07 2014 - 17:05:48 EST


On 2014-03-07 21:55, Guenter Roeck wrote:
On Fri, Mar 07, 2014 at 08:33:02PM +0100, Manuel Krause wrote:
Please have a short look at the following BUG report + the comments
-- this message here is a kind of FWD-ing it:
https://bugs.archlinux.org/task/39005

I came late to test kernel 3.13 with the .5 one, as it was the time
that the related -CK/BFS patch became available.

I'm not using Archlinux, but openSUSE, and my problems are quite the
same. Especially these with smelling melting plastics.

My own reports went to Con Kolivas' Blog first:
"I get weird temperatures and abrupt 100% fan actions with vanilla
3.13.5 with this CK and most recent BFQ at my HP Notebook.
In gkrellm the highest T had been @74°C, so far (3.12.13), and is
now growing to 94°C. Then, the fan goes to 100% for 10~30secs
cooling it to approx. 82°C.
That is not good, if I compare 74 to 94 °C.
Have I missed a .CONFIG option for 3.13, especially?"

I'd get the same without (Con's && BFQ's) patches.

Machine: HP Notebook with Core2Duo CPU (Penryn)
Distro: openSUSE 13.1, 64bit, continuously updated
Desktop: KDE 4.12.3
MESA & drm & Xorg: most recent ones from:
http://download.opensuse.org/repositories/home:/pontostroy:/X11/openSUSE_13.1/x86_64/

Current kernel: 3.13.6 vanilla from openSUSE repos, with
-ck1 and BFQ patches
Same behaviour: without these patches

Last good kernel: 3.12.13 vanilla + CK2 + BFQ


Can you add more information about your fan control policy ?
Do you rely on the hardware for automatic fan speed control,
or do you run the fancontrol script ?

What is the output from the 'sensors' command ?

Thanks,
Guenter


Hi, and thanks for the quick response!
No special fancy "fan control policy". 'fancontrol' isn't up or running.
Vanilla kernels 3.11.* and 3.12.* had been working on here without any extra work.
--
# sensors
acpitz-virtual-0
Adapter: Virtual device
temp1: +71.0°C (crit = +256.0°C)
temp2: +69.0°C (crit = +110.0°C)
temp3: +52.0°C (crit = +105.0°C)
temp4: +25.0°C (crit = +110.0°C)
temp5: +58.0°C (crit = +110.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Core 0: +62.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +60.0°C (high = +105.0°C, crit = +105.0°C)
--
My notebook (HP/Compaq 6730b) does not have a seperate fan sensor.
This is with 3.12.13 with my normal workload.

Please, trust my above mentionned values of 94 °C vs. 74°C as I don't like to boot 3.13.6 anymore, to avoid harm to the notebook's casing.

But I'd do to test any improvement-patch.

Manuel Krause


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