From owner-freebsd-acpi@FreeBSD.ORG Thu Jan 7 22:54:44 2010 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A36C6106566B for ; Thu, 7 Jan 2010 22:54:44 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id 73E2E8FC08 for ; Thu, 7 Jan 2010 22:54:44 +0000 (UTC) Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net [66.111.2.69]) by cyrus.watson.org (Postfix) with ESMTPSA id 24EE946B38; Thu, 7 Jan 2010 17:54:44 -0500 (EST) Received: from jhbbsd.localnet (smtp.hudson-trading.com [209.249.190.9]) by bigwig.baldwin.cx (Postfix) with ESMTPA id 52D2A8A01D; Thu, 7 Jan 2010 17:54:43 -0500 (EST) From: John Baldwin To: Joerg Wunsch Date: Thu, 7 Jan 2010 17:44:06 -0500 User-Agent: KMail/1.12.1 (FreeBSD/7.2-CBSD-20091103; KDE/4.3.1; amd64; ; ) References: <20091230082556.GD1637@uriah.heep.sax.de> <201001070944.51985.jhb@freebsd.org> <20100107191624.GO1616@uriah.heep.sax.de> In-Reply-To: <20100107191624.GO1616@uriah.heep.sax.de> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201001071744.06051.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Thu, 07 Jan 2010 17:54:43 -0500 (EST) X-Virus-Scanned: clamav-milter 0.95.1 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.5 required=4.2 tests=AWL,BAYES_00 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: freebsd-acpi@freebsd.org Subject: Re: FreeBSD 8.0 hangs on boot with ACPI enabled X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Jan 2010 22:54:44 -0000 On Thursday 07 January 2010 2:16:24 pm Joerg Wunsch wrote: > As John Baldwin wrote: > > > You can try disabling ACPI's thermal support > > (debug.acpi.disabled=thermal I think) to see if that helps. > > Yeah! I've got FreeBSD 8 running for the first time with ACPI enabled > on that machine now. > > So the question is why acpi_thermal hangs... I might also try > swapping the ahc0 controller back now. Do you have any idea why this > one gets a correct resource allocation with debug.acpi.disabled=sysres > but not otherwise? Is that rather a bug in the ACPI BIOS or in > FreeBSD? > > I could probably live with enabling both debugging options for that > machine, but I'd also like to help avoiding in particular the hard > hang in acpi_thermal since it might perhaps also affect other users. > > Thanks a lot for all your help so far, John, it's really appreciated! Wait, does disabling acpi_thermal change the system resource settings such at ahc now works even with sysres not disabled? That is weird! That has to be some weird quirk in the BIOS. As far as debugging the acpi_thermal hang I think you would want to add some printfs to the acpi_thermal kthreads to narrow down where the hang occurs. -- John Baldwin