https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271882
Bug ID: 271882
Summary: amdtemp measures bogus core temperature on AMD EPYC
7313P
Product: Base System
Version: 13.2-STABLE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
amdtemp seems to measure correct values for ccd temperatures, but the values
for core sensors seem a bit odd:
# uname -Kmo
FreeBSD amd64 1302001
# sysctl hw.model
hw.model: AMD EPYC 7313P 16-Core Processor
# sysctl dev.amdtemp
dev.amdtemp.3.ccd6: 38.6C
dev.amdtemp.3.ccd4: 36.6C
dev.amdtemp.3.ccd2: 38.6C
dev.amdtemp.3.ccd0: 38.6C
dev.amdtemp.3.core0.sensor0: 88.1C
dev.amdtemp.3.sensor_offset: 0
dev.amdtemp.3.%parent: hostb32
dev.amdtemp.3.%pnpinfo:
dev.amdtemp.3.%location:
dev.amdtemp.3.%driver: amdtemp
dev.amdtemp.3.%desc: AMD CPU On-Die Thermal Sensors
dev.amdtemp.2.ccd6: 38.6C
dev.amdtemp.2.ccd4: 36.6C
dev.amdtemp.2.ccd2: 38.6C
dev.amdtemp.2.ccd0: 38.6C
dev.amdtemp.2.core0.sensor0: 88.1C
dev.amdtemp.2.sensor_offset: 0
dev.amdtemp.2.%parent: hostb16
dev.amdtemp.2.%pnpinfo:
dev.amdtemp.2.%location:
dev.amdtemp.2.%driver: amdtemp
dev.amdtemp.2.%desc: AMD CPU On-Die Thermal Sensors
dev.amdtemp.1.ccd6: 38.6C
dev.amdtemp.1.ccd4: 36.6C
dev.amdtemp.1.ccd2: 38.6C
dev.amdtemp.1.ccd0: 38.6C
dev.amdtemp.1.core0.sensor0: 88.1C
dev.amdtemp.1.sensor_offset: 0
dev.amdtemp.1.%parent: hostb8
dev.amdtemp.1.%pnpinfo:
dev.amdtemp.1.%location:
dev.amdtemp.1.%driver: amdtemp
dev.amdtemp.1.%desc: AMD CPU On-Die Thermal Sensors
dev.amdtemp.0.ccd6: 38.6C
dev.amdtemp.0.ccd4: 36.6C
dev.amdtemp.0.ccd2: 38.6C
dev.amdtemp.0.ccd0: 38.6C
dev.amdtemp.0.core0.sensor0: 88.1C
dev.amdtemp.0.sensor_offset: 0
dev.amdtemp.0.%parent: hostb0
dev.amdtemp.0.%pnpinfo:
dev.amdtemp.0.%location:
dev.amdtemp.0.%driver: amdtemp
dev.amdtemp.0.%desc: AMD CPU On-Die Thermal Sensors
dev.amdtemp.%parent:
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