kern/164329: hw.acpi.thermal.tz0.temperature shows strange value

Alexander Shikov minotaur at
Fri Jan 20 08:30:15 UTC 2012

>Number:         164329
>Category:       kern
>Synopsis:       hw.acpi.thermal.tz0.temperature shows strange value
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jan 20 08:30:14 UTC 2012
>Originator:     Alexander Shikov
>Release:        9.0-RELEASE
IT Consulting LLC
FreeBSD 9.0-RELEASE FreeBSD 9.0-RELEASE #1: Thu Jan 19 22:57:17 EET 2012     root at  i386

I have two Hewlett-Packard Proliant DL360 servers. One is running 9.0-RELEASE, second is running 8.1-RELEASE. On both there is a problem with thermal control: hw.acpi.thermal.tz0.temperature shows strange temperature:
# sysctl hw.acpi.thermal
hw.acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 10
hw.acpi.thermal.user_override: 0
hw.acpi.thermal.tz0.temperature: 8,3C -1
hw.acpi.thermal.tz0.passive_cooling: 1
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: 9,8C
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 31,3C
hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
hw.acpi.thermal.tz0._TC1: 4
hw.acpi.thermal.tz0._TC2: 4
hw.acpi.thermal.tz0._TSP: 60

But the temperature in colocation is much more bigger than 8,3C.

I believe that a problem is repeatable on HP Proliant DL350 and DL360 servers.
No fix.


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