[ltp] x220: "temperature above threshold, cpu clock throttled" messages

[Paul Bolle]

0) Every now and then, when building a new kernel on my ThinkPad x220, I
notice messages about throttling in the logs:
    CPU0: Core temperature above threshold, cpu clock throttled (total events = 1)

A full sample is pasted at the bottom of this message. Building a kernel
apparently generates the heaviest load on this machine. I don't think I
otherwise do much CPU intensive stuff.

1) Do other people see these messages too? How serious are they?


Paul Bolle

kernel: CPU0: Core temperature above threshold, cpu clock throttled (total events = 1)
kernel: CPU1: Core temperature above threshold, cpu clock throttled (total events = 1)
kernel: CPU2: Package temperature above threshold, cpu clock throttled (total events = 1)
kernel: CPU3: Package temperature above threshold, cpu clock throttled (total events = 1)
kernel: CPU1: Package temperature above threshold, cpu clock throttled (total events = 1)
kernel: CPU0: Package temperature above threshold, cpu clock throttled (total events = 1)
kernel: CPU1: Core temperature/speed normal
kernel: CPU0: Core temperature/speed normal
kernel: CPU2: Package temperature/speed normal
kernel: CPU3: Package temperature/speed normal
kernel: CPU0: Package temperature/speed normal
kernel: CPU1: Package temperature/speed normal
kernel: mce: [Hardware Error]: Machine check events logged
mcelog[672]: Kernel does not support page offline interface
mcelog[672]: Hardware event. This is not a software error.
mcelog[672]: MCE 0
mcelog[672]: CPU 1 THERMAL EVENT TSC 5aafdf91021
mcelog[672]: TIME 1391720837 Thu Feb  6 22:07:17 2014
mcelog[672]: Processor 1 heated above trip temperature. Throttling enabled.
mcelog[672]: Please check your system cooling. Performance will be impacted
mcelog[672]: STATUS 88030003 MCGSTATUS 0
mcelog[672]: MCGCAP c07 APICID 1 SOCKETID 0
mcelog[672]: CPUID Vendor Intel Family 6 Model 42
mcelog[672]: Hardware event. This is not a software error.
mcelog[672]: MCE 1
mcelog[672]: CPU 0 THERMAL EVENT TSC 5aafdf973a6
mcelog[672]: TIME 1391720837 Thu Feb  6 22:07:17 2014
mcelog[672]: Processor 0 heated above trip temperature. Throttling enabled.
mcelog[672]: Please check your system cooling. Performance will be impacted
mcelog[672]: STATUS 88030003 MCGSTATUS 0
mcelog[672]: MCGCAP c07 APICID 0 SOCKETID 0
mcelog[672]: CPUID Vendor Intel Family 6 Model 42
mcelog[672]: Hardware event. This is not a software error.
mcelog[672]: MCE 2
mcelog[672]: CPU 0 THERMAL EVENT TSC 5aafe20f005
mcelog[672]: TIME 1391720837 Thu Feb  6 22:07:17 2014
mcelog[672]: Processor 0 below trip temperature. Throttling disabled
mcelog[672]: STATUS 88040002 MCGSTATUS 0
mcelog[672]: MCGCAP c07 APICID 0 SOCKETID 0
mcelog[672]: CPUID Vendor Intel Family 6 Model 42
mcelog[672]: Hardware event. This is not a software error.
mcelog[672]: MCE 3
mcelog[672]: CPU 1 THERMAL EVENT TSC 5aafe2133dd
mcelog[672]: TIME 1391720837 Thu Feb  6 22:07:17 2014
mcelog[672]: Processor 1 below trip temperature. Throttling disabled
mcelog[672]: STATUS 88040002 MCGSTATUS 0
mcelog[672]: MCGCAP c07 APICID 1 SOCKETID 0
mcelog[672]: CPUID Vendor Intel Family 6 Model 42