From owner-freebsd-acpi@FreeBSD.ORG  Sat Oct 11 18:10:15 2014
Return-Path: <owner-freebsd-acpi@FreeBSD.ORG>
Delivered-To: freebsd-acpi@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 1C4BBD8C
 for <freebsd-acpi@freebsd.org>; Sat, 11 Oct 2014 18:10:15 +0000 (UTC)
Received: from mail.metricspace.net (mail.metricspace.net
 [IPv6:2001:470:1f11:617::103])
 by mx1.freebsd.org (Postfix) with ESMTP id CC64564A
 for <freebsd-acpi@freebsd.org>; Sat, 11 Oct 2014 18:10:14 +0000 (UTC)
Received: from [192.168.42.24] (unknown [172.16.0.47])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client did not present a certificate) (Authenticated sender: eric)
 by mail.metricspace.net (Postfix) with ESMTPSA id E916E2F1D1
 for <freebsd-acpi@freebsd.org>; Sat, 11 Oct 2014 18:10:07 +0000 (UTC)
Message-ID: <5439727F.4070602@metricspace.net>
Date: Sat, 11 Oct 2014 14:10:07 -0400
From: Eric McCorkle <eric@metricspace.net>
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64;
 rv:31.0) Gecko/20100101 Thunderbird/31.1.2
MIME-Version: 1.0
To: freebsd-acpi@freebsd.org
Subject: ACPI debug messages
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-acpi@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: ACPI and power management development <freebsd-acpi.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-acpi>,
 <mailto:freebsd-acpi-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-acpi/>
List-Post: <mailto:freebsd-acpi@freebsd.org>
List-Help: <mailto:freebsd-acpi-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-acpi>,
 <mailto:freebsd-acpi-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 11 Oct 2014 18:10:15 -0000

Hello,

I decided to try tracing through the evaluation of the DSM method in 
order to track down where the graphics driver failure I mentioned 
earlier is coming from.

However, it looks like there's already an extensive debug logging system 
in place in the acpica system.

Can this be controlled from user space (presumably through sysctls), or 
does it need to be compiled in?