Date: Fri, 15 Mar 2013 15:16:19 -0400 From: Jim Ohlstein <jim@ohlste.in> To: freebsd-stable@freebsd.org Cc: Zoran Kolic <zkolic@sbb.rs> Subject: Re: amdtemp does not find my CPU. Message-ID: <51437383.2080705@ohlste.in> In-Reply-To: <20130315161508.GA963@mycenae.sbb.rs> References: <20130315161508.GA963@mycenae.sbb.rs>
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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". -- Jim Ohlstein
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