i386/117727: acpi_thermal regression in HEAD on t42

[Sam Leffler]

>Number:         117727
>Category:       i386
>Synopsis:       acpi_thermal regression in HEAD on t42
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Oct 31 21:00:05 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     Sam Leffler
>Release:        8.0-CURRENT Oct 30, 2007
>Organization:
>Environment:
aku% uname -a
FreeBSD aku 8.0-CURRENT FreeBSD 8.0-CURRENT #2: Tue Oct 30 16:07:38 PDT 2007     sam at trouble.errno.com:/data/freebsd/head/sys/i386/compile/MINKY  i386


>Description:
Doing a make buildworld resulted in thermal shutdown.  This laptop has run freebsd for years and never shown a problem.  Prior to the shutdown I was monitoring passive cooling and saw it working as intended.  Relevent lines from /var/log/messages:

Oct 31 12:15:50 aku root: WARNING: system temperature too high, shutting down so
on!
Oct 31 13:11:46 aku kernel: acpi_perf0: set freq failed, err 22
Oct 31 13:11:46 aku kernel: acpi_tz0: failed to set new freq, disabling passive
cooling
Oct 31 13:12:46 aku kernel: acpi_perf0: set freq failed, err 22
Oct 31 13:19:24 aku root: WARNING: system temperature too high, shutting down so
on!
Oct 31 13:24:56 aku root: WARNING: system temperature too high, shutting down so
on!
Oct 31 13:25:06 aku kernel: acpi_tz0: WARNING - current temperature (93.0C) exce
eds safe limits

Other than tailored kerenl config acpi_ibm and acpi_video were loaded along with some drivers.  No devices were active other than disk (all data was local).

I'm not sure I heard the fan kick in.

>How-To-Repeat:
Run xorg/kde.  Nothing but terminal windows.

make buildworld in a terminal window.

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: