linux-kernel - thinkpad x60, T40p: overheat with v4.9-rc4 (was Re: v4.8-rc1: thinkpad x60: running at low frequency even during kernel build)

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Message-ID: <20161109113406.GA1793@amd>
Date:   Wed, 9 Nov 2016 12:34:06 +0100
From:   Pavel Machek <pavel@....cz>
To:     "Pandruvada, Srinivas" <srinivas.pandruvada@...el.com>,
        regressions@...mhuis.info
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Zhang, Rui" <rui.zhang@...el.com>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "platform-driver-x86@...r.kernel.org" 
        <platform-driver-x86@...r.kernel.org>,
        "rjw@...ysocki.net" <rjw@...ysocki.net>,
        "viresh.kumar@...aro.org" <viresh.kumar@...aro.org>,
        "ibm-acpi-devel@...ts.sourceforge.net" 
        <ibm-acpi-devel@...ts.sourceforge.net>,
        "ibm-acpi@....eng.br" <ibm-acpi@....eng.br>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>
Subject: thinkpad x60, T40p: overheat with v4.9-rc4 (was Re: v4.8-rc1:
 thinkpad x60: running at low frequency even during kernel build)

Hi!

Thanks to Srinivas, bug tracking moved to bugzilla at
https://bugzilla.kernel.org/show_bug.cgi?id=187311 , it is regression
from v4.8-final.

Easiest way to observe it is that cpufreq/bios_limit does not change
in v4.9, where it goes lower with high temperature on v4.8.

Best regards,

								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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