linux-kernel - Re: DMI_MATCH patch in reboot.c for SFF Dell OptiPlex 745

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Date:	Tue, 5 Jun 2007 12:55:22 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Robert Hancock <hancockr@...w.ca>
Cc:	James Jarvis <James.Jarvis@...ac.uk>, Riley@...liams.Name,
	Linux-Kernel@...r.kernel.org, graham.newton@...ac.uk,
	kenneth.macdonald@...ac.uk
Subject: Re: DMI_MATCH patch in reboot.c for SFF Dell OptiPlex 745 - fixes hang on reboot

On Mon, Jun 04, 2007 at 06:49:10PM -0600, Robert Hancock wrote:

> This blacklist seems to be growing. Isn't there something better we can 
> do here? Can we just reboot through the BIOS by default, is that really 
> broken on some systems?

Yes, that breaks a separate set of machines. It would be interesting to 
try resetting just by banging the keyboard controller from userspace, 
and seeing if that fails in the same way - I suspect that on certain 
hardware, part of the shutdown process confuses it in some way.
-- 
Matthew Garrett | mjg59@...f.ucam.org
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