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Date: Tue, 1 Jun 2010 22:12:19 +0100
From: Matthew Garrett <mjg59@srcf.ucam.org>
To: "Justin P. Mattock" <justinmattock@gmail.com>
Cc: x86@kernel.org, tglx@linutronix.de, linux-kernel@vger.kernel.org
Subject: Re: [PATCH]X86:reboot.c Add some dmi entries to
	pci_reboot_dmi_table.
Message-ID: <20100601211219.GA17719@srcf.ucam.org>
References: <20100601190050.GA14667@srcf.ucam.org> <4C055BFF.8090800@gmail.com> <20100601192101.GA15086@srcf.ucam.org> <4C056839.8020605@gmail.com> <20100601200704.GA16091@srcf.ucam.org> <4C056AE6.3000409@gmail.com> <20100601202130.GA16391@srcf.ucam.org> <4C056E0C.2030709@gmail.com> <20100601203351.GA16575@srcf.ucam.org> <4C0572B4.6000201@gmail.com>
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On Tue, Jun 01, 2010 at 01:51:00PM -0700, Justin P. Mattock wrote:
> On 06/01/2010 01:33 PM, Matthew Garrett wrote:
>> On Tue, Jun 01, 2010 at 01:31:08PM -0700, Justin P. Mattock wrote:
>> It returns you to the prompt? The machine hangs? What do you mean by
>> "nothing"? (Also, what chipset does this machine have?)
>>
>
> this is what it does:
> It returns you to the prompt

Ok, so it does nothing. Sigh. Thapple.

> as for the chipset name..(not sure)

It's an MCP79. In that case I suspect that we're misdiagnosing this at 
some level. How about the following (again, run as root):

#include <sys/io.h>

int main() {
	iopl(3);
	outb(0xfe, 0x64);
	return 0;
}

-- 
Matthew Garrett | mjg59@srcf.ucam.org
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