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1b1ed1a
(Get the code!)
Your processor is indicating this:
PROCHOT# or FORCEPR# Event (bit 2, RO) — Indicates whether PROCHOT# or FORCEPR# is being
asserted by another agent on the platform.
The related sticky log bit is also set.
This is something I suspected a couple of months ago, on one of those askubuntu threads. As to why the bit does not go back to 0, I do not know, that would be your hardware.
Please also provide the contents of MSR 0x1B2.
Note that your processor is also indicating a past power limit, via the log bit. However, many do as they come out of the BIOS to the O.S., so it might be a red herring. One has to clear the log bit and then watch for it becoming set again to know for certain.