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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 17 Jul 2010 02:27:42 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Henrique de Moraes Holschuh <hmh@....eng.br>
Cc:	Pedro Ribeiro <pedrib@...il.com>, 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 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/