amdtemp does not find my CPU.

[Isaac (.ike) Levy]

On Mar 15, 2013, at 3:16 PM, Jim Ohlstein wrote:
> On 3/15/13 12:15 PM, Zoran Kolic wrote:
>> After I installed 9.1 amd64 on node with amd 8120,
>> I was not able to read temperatures out of the box.
>> I fetched source for head module and compiled. And
>> loaded module. Still nothing. I assume my cpu is
>> a bit different.
>> Best regards
> 
> The module from head "works" for me with an 8120 on 9.1 stable (r247893)
> though the results are inconsistent. I am not certain of how useful they
> are.
> 
> # sysctl hw.model
> hw.model: AMD FX(tm)-8120 Eight-Core Processor
> 
> # kldstat | grep amd
> 5    1 0xffffffff8183e000 1043     amdtemp.ko
> 
> # sysctl -a | grep dev.amdtemp
> dev.amdtemp.0.%desc: AMD CPU On-Die Thermal Sensors
> dev.amdtemp.0.%driver: amdtemp
> dev.amdtemp.0.%parent: hostb4
> dev.amdtemp.0.sensor_offset: 0
> dev.amdtemp.0.core0.sensor0: 47.7C
> 
> 
> Here are results taken at 0.1 second intervals using a shell script:
> 
> dev.amdtemp.0.core0.sensor0: 42.1C
> dev.amdtemp.0.core0.sensor0: 42.2C
> dev.amdtemp.0.core0.sensor0: 42.0C
> dev.amdtemp.0.core0.sensor0: 42.1C
> dev.amdtemp.0.core0.sensor0: 41.8C
> dev.amdtemp.0.core0.sensor0: 41.7C
> dev.amdtemp.0.core0.sensor0: 51.1C
> dev.amdtemp.0.core0.sensor0: 51.0C
> dev.amdtemp.0.core0.sensor0: 50.7C
> dev.amdtemp.0.core0.sensor0: 50.5C
> dev.amdtemp.0.core0.sensor0: 50.1C
> dev.amdtemp.0.core0.sensor0: 49.8C
> dev.amdtemp.0.core0.sensor0: 49.5C
> dev.amdtemp.0.core0.sensor0: 49.2C
> dev.amdtemp.0.core0.sensor0: 49.2C
> 
> 
> and again:
> 
> dev.amdtemp.0.core0.sensor0: 41.5C
> dev.amdtemp.0.core0.sensor0: 41.2C
> dev.amdtemp.0.core0.sensor0: 40.8C
> dev.amdtemp.0.core0.sensor0: 40.8C
> dev.amdtemp.0.core0.sensor0: 41.0C
> dev.amdtemp.0.core0.sensor0: 41.3C
> dev.amdtemp.0.core0.sensor0: 41.6C
> dev.amdtemp.0.core0.sensor0: 41.3C
> dev.amdtemp.0.core0.sensor0: 54.0C
> dev.amdtemp.0.core0.sensor0: 53.7C
> dev.amdtemp.0.core0.sensor0: 53.3C
> dev.amdtemp.0.core0.sensor0: 53.1C
> dev.amdtemp.0.core0.sensor0: 52.7C
> dev.amdtemp.0.core0.sensor0: 52.3C
> dev.amdtemp.0.core0.sensor0: 52.1C
> dev.amdtemp.0.core0.sensor0: 51.7C
> dev.amdtemp.0.core0.sensor0: 51.5C
> 
> You can see during each series there are sudden increases of over 9C and
> almost 13C respectively.
> 
> The same effect is seen if I track any of the individual cores with
> "dev.cpu.[0-7].temperature". Here's an example with a 9C jump in 0.1 second.
> 
> dev.cpu.3.temperature: 41.5C
> dev.cpu.3.temperature: 41.5C
> dev.cpu.3.temperature: 41.7C
> dev.cpu.3.temperature: 41.7C
> dev.cpu.3.temperature: 41.3C
> dev.cpu.3.temperature: 41.0C
> dev.cpu.3.temperature: 40.7C
> dev.cpu.3.temperature: 49.8C
> dev.cpu.3.temperature: 49.5C
> dev.cpu.3.temperature: 49.2C
> dev.cpu.3.temperature: 48.8C
> dev.cpu.3.temperature: 48.6C
> dev.cpu.3.temperature: 48.2C
> dev.cpu.3.temperature: 48.0C
> 
> I don't have hands on access to this box as it's in a datacenter 1000
> miles from me, but the techs there had a look and all "seems to be OK".



I get the same problem as Zoran's original post.

My issue, after enabling the kernel module in loader.conf and rebooting, I don't see the temperature sysctl values.
Fresh 9.1-REL, amd64 (ISO Image, not yet updated from 9.1-REL head)

AMD A8-5500 CPU, full dmesg can be found here:
http://www.nycbug.org/?action=dmesgd&dmesgid=2450

I was thinking of compiling-in "device amdtemp" this weekend- anyone know of anything else I can do to help provide a clear and easily reproducible test case?

Best,
.ike