linux-kernel - Re: [patch] enable userspace cpu core voltage control with acpi-cpufreq

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Message-ID: <p738x7oaugi.fsf@bingen.suse.de>
Date:	03 Sep 2007 12:56:13 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	<colin.michael@...nline.de>
Cc:	<linux-kernel@...r.kernel.org>
Subject: Re: [patch] enable userspace cpu core voltage control with acpi-cpufreq

<colin.michael@...nline.de> writes:

> i want to make a patch known that provides a userspace interface to control the core voltage of a computer processor(s).

That would be essentially linux supported undervolting which 
for stability is as bad as overclocking. The problem is that 
such games tend to generate weird kernel crashes and then
chew up development issues when kernel hackers have to chase
ghost bugs. I don't think we should support it. Developer 
time is too precious.

-Andi
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