From owner-freebsd-stable@FreeBSD.ORG  Fri Dec 10 10:02:33 2010
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Date: Fri, 10 Dec 2010 02:02:30 -0800
From: Jeremy Chadwick <freebsd@jdc.parodius.com>
To: "Arno J. Klaassen" <arno@heho.snv.jussieu.fr>
Message-ID: <20101210100230.GA25419@icarus.home.lan>
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Cc: freebsd-stable@freebsd.org
Subject: Re: 8.2-PRERELEASE freezing on reboot (-current OK)
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On Fri, Dec 10, 2010 at 10:37:32AM +0100, Arno J. Klaassen wrote:
> just FYI that on an 8-way Tyan S3992-E based box, a reboot under
> 8.2-PRERELEASE (in fact, 8-stable since quite a while) makes the box
> freeze, whilst the same thing under -current works OK.

Try toggling these two sysctls on the 8.2-PRERELEASE box.  Be sure to
check what the defaults are before toggling them, and only mess with one
at a time.

hw.acpi.handle_reboot
hw.acpi.disable_on_reboot

-- 
| Jeremy Chadwick                                   jdc@parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |