How to disable acpi thermal?

[Daniel Eischen]

On Sun, 20 Jan 2008, Alexandre "Sunny" Kovalenko wrote:

>
> On Tue, 2008-01-15 at 15:34 -0500, Daniel Eischen wrote:
>> [ Redirected from -current ]
>>
>>
>> I posted the acpidump here:
>>
>>    http://people.freebsd.org/~deischen/stl2.iasl
>>
>> The problem is that acpi_thermal keeps shutting down the system
>> after 2 minutes into a buildkernel.  The system has no load other
>> than the buildkernel at the time it shuts down.
>>
>> The system is a Intel STL2 Tupelo motherboard with 1 CPU, the
>> other CPU socket being occupied by a CPU terminator thingy.
>> I uncovered the rackmount system and watched it while building
>> a kernel.  With the cover off the acpi monitored temperature
>> went to 107C and stayed there.  It only took a minute or two
>> to get there.  I felt around inside the chassis and nothing
>> was even near being to warm or hot.  With the cover on, the
>> temperature goes to 111/112C before being shutdown by acpi_thermal
>> (the limit being 110C).  There is no way anything in that
>> chassis is anywhere near 100C.  I've disabled acpi_thermal
>> for now, but it'd be nice to get a better fix.
>>
>> Any ideas?
>>
> Firstly, sorry for the delay in answer -- daytime job decided to kick in
> with the vengeance.
>
> I took a look at the ASL and it does seem that this thing has embedded
> controller and that is where _TMP method gets its temperature reading
> from (this being conditional on the CPU present in the socket --
> otherwise you get 5 degrees Celsius, hardcoded in the ASL).
>
> So the questions are:
>
> -- does temperature in TZ2 grow over time as well? (TZ1 should stay at
> 5C all the time).

No, it stays around the same.  I saw it go to 38 from 35 in
the same time that TZ0 went to over 110C.  I didn't see it
get any higher than that.

> -- do you see AE_NO_HARDWARE_RESPONSE messages, and if yes, could you
> try to increase debug.acpi.ec.timeout -- I think (sm) it is in ms and
> default is 750.

No, I don't get any of those messages.

> -- do you have ACPI_DEBUG option in your kernel? If not, could you,
> maybe, build kernel with that, and turn on full debug, let temperature
> climb for a while and send me debug output.

I did this with:

   debug.acpi.level: ACPI_LV_ERROR ACPI_LV_WARN ACPI_LV_INIT
     ACPI_LV_DEBUG_OBJECT ACPI_LV_INFO ACPI_LV_ALL_EXCEPTIONS
   debug.acpi.layer: ACPI_UTILITIES ACPI_HARDWARE ACPI_EVENTS
     ACPI_TABLES ACPI_NAMESPACE ACPI_PARSER ACPI_DISPATCHER
     ACPI_EXECUTER ACPI_RESOURCES ACPI_CA_DEBUGGER ACPI_OS_SERVICES
     ACPI_CA_DISASSEMBLER ACPI_ALL_COMPONENTS ACPI_THERMAL

This was with settings debug.acpi.level="ACPI_LV_ALL_EXCEPTIONS"
and debug.acpi.layer="ACPI_ALL_COMPONENTS ACPI_THERMAL".
I tried debug.acpi.level="ACPI_LV_VERBOSITY3 ACPI_LV_VERBOSE"
but it made the system unusable (hung).

The messages I get are basicall the same thing over and over,
posted here:

   http://people.freebsd.org/~deischen/acpi.debug.012108

I do see this a lot:

   dsobject-0491 [2238] DsBuildInternalPackage: Package List length larger than NumElements count (2), truncated

The beginning of the log is with tz0 temperature at around 44C (just
before the 'sudo make -DNO_CLEAN -DNO_CLEANDIR buildworld', also
caught in the log).  The end of the log, about 2 minutes later, tz0
temperature is 113C.  tz2 temperature was 36C and 38C respectively.

-- 
DE