linux-kernel - Re: [PATCH]X86:reboot.c Add some dmi entries to pci_reboot_dmi

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Date:	Tue, 01 Jun 2010 23:11:28 -0600
From:	Robert Hancock <hancockrwd@...il.com>
To:	"Justin P. Mattock" <justinmattock@...il.com>
CC:	Matthew Garrett <mjg59@...f.ucam.org>, x86@...nel.org,
	tglx@...utronix.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH]X86:reboot.c Add some dmi entries to pci_reboot_dmi_table.

On 06/01/2010 03:43 PM, Justin P. Mattock wrote:
> On 06/01/2010 02:29 PM, Matthew Garrett wrote:
>> On Tue, Jun 01, 2010 at 02:26:01PM -0700, Justin P. Mattock wrote:
>>> On 06/01/2010 02:12 PM, Matthew Garrett wrote:
>>>> some level. How about the following (again, run as root):
>>>>
>>>> #include<sys/io.h>
>>>>
>>>> int main() {
>>>> iopl(3);
>>>> outb(0xfe, 0x64);
>>>> return 0;
>>>> }
>>>>
>>
>> So, just to be clear, you run this as root and it immediately returns
>> you to the prompt? This seems unlikely.
>
> yep.. with the above code
> I (save to a file) then
> non-root gcc reboot.c -o reboot
> then su
> ./reboot
> just bake to the command prompt

Can you post the FACP section of the acpidump output from this machine?

>
>>
>>> ahh!! I see now:
>>> grep 0x64 *.dsl
>>
>> No, that's unrelated.
>>
>
> alright!!
>
> Justin P. Mattock

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