[Bug 277969] coretemp returns erroneous temps when resuming from S3 acpi state
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Date: Tue, 26 Mar 2024 04:41:08 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277969
Bug ID: 277969
Summary: coretemp returns erroneous temps when resuming from S3
acpi state
Product: Base System
Version: 13.3-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: bugs@FreeBSD.org
Reporter: tom+fbsdbugzilla@nuegia.net
The coretemp drivers reports 182 degrees C when resuming from S3 acpi power
state causing the system to trigger an emergency shut down. My CPU is most
definitely not 182C, I don't even think that is possible. This happens about
every 1 of 5 resumes.
Removing coretemp from the loaded kernel modules allows system to resume from
S3 reliably, but prevents tempature monitoring.
platform: Lenovo Thinkpad T430
hw.machine: amd64
hw.model: Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz
ACPI APIC Table: <COREv4 COREBOOT>
acpi0: <COREv4 COREBOOT>
% uname -v
FreeBSD 14.0-RELEASE-p5 #0: Tue Feb 13 23:37:36 UTC 2024
root@amd64-builder.daemonology.net:/usr/obj/usr/src/amd64.amd64/sys/GENERIC
Perhaps coretemp should be changed to not initiate a critical temp shutdown
except when the last 3 readings have been overtemp. This would prevent noise
from triggering emergency actions.
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