From: "Justin P. Mattock" <justinmattock@gmail.com>
To: Matthew Garrett <mjg59@srcf.ucam.org>
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.
Date: Tue, 01 Jun 2010 14:43:12 -0700 [thread overview]
Message-ID: <4C057EF0.2030808@gmail.com> (raw)
In-Reply-To: <20100601212901.GA18390@srcf.ucam.org>
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
>
>> ahh!! I see now:
>> grep 0x64 *.dsl
>
> No, that's unrelated.
>
alright!!
Justin P. Mattock
next prev parent reply other threads:[~2010-06-01 21:42 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-29 6:26 [PATCH]X86:reboot.c Add some dmi entries to pci_reboot_dmi_table Justin P. Mattock
2010-05-31 17:07 ` Matthew Garrett
2010-05-31 17:46 ` Justin P. Mattock
2010-06-01 19:00 ` Matthew Garrett
2010-06-01 19:14 ` Justin P. Mattock
2010-06-01 19:21 ` Matthew Garrett
2010-06-01 20:06 ` Justin P. Mattock
2010-06-01 20:07 ` Matthew Garrett
2010-06-01 20:17 ` Justin P. Mattock
2010-06-01 20:21 ` Matthew Garrett
2010-06-01 20:31 ` Justin P. Mattock
2010-06-01 20:33 ` Matthew Garrett
2010-06-01 20:51 ` Justin P. Mattock
2010-06-01 21:12 ` Matthew Garrett
2010-06-01 21:26 ` Justin P. Mattock
2010-06-01 21:29 ` Matthew Garrett
2010-06-01 21:43 ` Justin P. Mattock [this message]
2010-06-01 21:48 ` Matthew Garrett
2010-06-01 21:56 ` Justin P. Mattock
2010-06-02 12:08 ` Alan Cox
2010-06-02 13:32 ` Justin P. Mattock
2010-06-02 5:11 ` Robert Hancock
2010-06-02 6:01 ` Justin P. Mattock
2010-06-02 23:18 ` Robert Hancock
2010-06-02 23:43 ` Justin P. Mattock
2010-06-02 23:45 ` Robert Hancock
2010-06-03 0:05 ` Justin P. Mattock
2010-06-03 0:20 ` Robert Hancock
2010-06-03 0:27 ` Justin P. Mattock
2010-06-03 0:34 ` Robert Hancock
2010-06-03 0:51 ` Justin P. Mattock
2010-06-03 1:37 ` Matthew Garrett
2010-06-03 1:46 ` Justin P. Mattock
2010-06-03 1:47 ` Robert Hancock
2010-06-03 1:56 ` Matthew Garrett
2010-06-03 2:06 ` Justin P. Mattock
2010-06-03 2:06 ` Robert Hancock
2010-06-03 2:00 ` Justin P. Mattock
2010-06-03 2:05 ` Robert Hancock
2010-06-03 2:16 ` Justin P. Mattock
2010-06-03 2:15 ` Justin P. Mattock
2010-06-03 2:18 ` Matthew Garrett
2010-06-03 2:22 ` Justin P. Mattock
2010-06-03 9:54 ` Alan Cox
2010-06-03 10:11 ` Justin P. Mattock
2010-06-03 11:46 ` Matthew Garrett
2010-06-03 14:43 ` Robert Hancock
2010-06-03 2:19 ` Justin P. Mattock
2010-07-31 19:00 ` Justin Mattock
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