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Date: Thu, 7 Jun 2007 06:27:02 -0700
From: Jeremy Chadwick <koitsu@FreeBSD.org>
To: Tom McLaughlin <tmclaugh@sdf.lonestar.org>
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Cc: stable@FreeBSD.org
Subject: Re: ACPI hanging shutdown
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On Wed, Jun 06, 2007 at 11:50:00PM -0400, Tom McLaughlin wrote:
> Sometime between the beginning of April and May 14(?) there appears to
> have been a change in ACPI which is causing my IBM R51 to hang when
> shutting down.  I see syslog exit and then nothing.  I need to do a hard
> shutdown with the partitions still mounted for it to turn off.  I booted
> without ACPI and the problem has gone away.  Successive updates have not
> solved this.  Anyone know what could be causing this?  Thanks.

Have you checked and/or tried setting the following two sysctls?
I believe the one you might want is hw.acpi.handle_reboot=1.

$ sysctl -a | grep 'acpi.*reboot'
hw.acpi.disable_on_reboot: 0
hw.acpi.handle_reboot: 0

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