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Date:      Sun, 28 Oct 2007 15:43:39 GMT
From:      "Arno J. Klaassen" <arno@heho.snv.jussieu.fr>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   kern/117605: request for debug.cpufreq.highest
Message-ID:  <200710281543.l9SFhddH068201@www.freebsd.org>
Resent-Message-ID: <200710281550.l9SFo21u004251@freefall.freebsd.org>

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>Number:         117605
>Category:       kern
>Synopsis:       request for debug.cpufreq.highest
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Sun Oct 28 15:50:02 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     Arno J. Klaassen
>Release:        amd64 -6stable
>Organization:
SCITO SA
>Environment:
FreeBSD demo 6.2-STABLE FreeBSD 6.2-STABLE #7: Thu Sep 20 12:57:15 CEST 2007     toor@demo:/files/amd64/obj/files/bsd/src6/sys/D470K  amd64
>Description:

I have a notebook on which cpu-cooling is failing

When running big jobs (or just a simple buildkernel) it will
auto power-off since too hot unless I stop cpufreq and fix frequency to
some intermediate value

I would be nice to have some sysctl debug.cpufreq.highest to tell it not to go higher than a certain freqlevel (as possible with the old acpi_ppc.ko hw.acpi.cpu.px_highest control)
>How-To-Repeat:

>Fix:
Use acpi_ppc.ko instead (corrected source for some changed ACPI names)

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



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