linux-kernel - Re: [ibm-acpi-devel] [PATCH] Remove 9 second reboot delay on Lenovo T400/T500

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Date:	Fri, 23 Jul 2010 19:53:16 +0100
From:	Pedro Ribeiro <pedrib@...il.com>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	Henrique de Moraes Holschuh <hmh@....eng.br>, eusou15@...oo.com,
	linux-kernel@...r.kernel.org, toralf.foerster@....de,
	ibm-acpi-devel@...ts.sourceforge.net
Subject: Re: [ibm-acpi-devel] [PATCH] Remove 9 second reboot delay on Lenovo 
	T400/T500

On 17 July 2010 02:27, Matthew Garrett <mjg59@...f.ucam.org> wrote:
> On Fri, Jul 16, 2010 at 10:23:04PM -0300, Henrique de Moraes Holschuh wrote:
>
>> I'm confused.  Is it the PCI reboot vector, or the ACPI reboot vector
>> that acts instantly?  The bug reporters say that they use reboot=pci to
>> have instant reboot, in this thread...
>
> The PCI one, since it's a function of the chipset. The ACPI one would
> act instantly (it's the PCI one, in this case) but it's marked as
> unsupported. However, the PCI one is poorly standardised - Windows never
> uses it, different chips have subtly different requirements and so on.
>
> --
> Matthew Garrett | mjg59@...f.ucam.org
>

So what should be done then? This is not the most annoying of bugs,
but still a bug.

Regards,
Pedro
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