Date: Mon, 31 Dec 2007 12:29:49 +0000
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Pavel Machek <pavel@ucw.cz>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
       Rene Herman <rene.herman@keyaccess.nl>, Ingo Molnar <mingo@elte.hu>,
       dpreed@reed.com, Islam Amer <pharon@gmail.com>, hpa@zytor.com,
       Ingo Molnar <mingo@redhat.com>, Andi Kleen <andi@firstfloor.org>,
       Thomas Gleixner <tglx@linutronix.de>,
       Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override
Message-ID: <20071231122949.58edd1d2@the-village.bc.nu>
In-Reply-To: <20071231132054.GB26339@ucw.cz>
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	<alpine.LFD.1.00.0712300124440.32517@woody.linux-foundation.org>
	<20071230144700.78f4605c@the-village.bc.nu>
	<20071230152835.GX16946@elte.hu>
	<4777BDA5.4050203@keyaccess.nl>
	<alpine.LFD.1.00.0712301009220.32517@woody.linux-foundation.org>
	<20071231132054.GB26339@ucw.cz>
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> "You plug in PCI DEBUG card and it overclocks your machine" is bad
> scenario.. (I don't know if it does... can PCI card emulate ISA timings?)

Easily. Its a bit more restricted by later spec revisions but it can halt
your box of a week or two if it wants. Video cards used to pull this
stunt for marketing benchmark numbers.
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