From owner-freebsd-current@FreeBSD.ORG Thu Nov 12 17:28:28 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0DB3B106568F for ; Thu, 12 Nov 2009 17:28:28 +0000 (UTC) (envelope-from gary.jennejohn@freenet.de) Received: from mout6.freenet.de (mout6.freenet.de [IPv6:2001:748:100:40::2:8]) by mx1.freebsd.org (Postfix) with ESMTP id 9BBAF8FC1A for ; Thu, 12 Nov 2009 17:28:27 +0000 (UTC) Received: from [195.4.92.17] (helo=7.mx.freenet.de) by mout6.freenet.de with esmtpa (ID gary.jennejohn@freenet.de) (port 25) (Exim 4.69 #92) id 1N8dT8-0001GN-8j; Thu, 12 Nov 2009 18:28:26 +0100 Received: from tf721.t.pppool.de ([89.55.247.33]:15935 helo=ernst.jennejohn.org) by 7.mx.freenet.de with esmtpa (ID gary.jennejohn@freenet.de) (port 25) (Exim 4.69 #94) id 1N8dT8-0004o2-2J; Thu, 12 Nov 2009 18:28:26 +0100 Date: Thu, 12 Nov 2009 18:28:25 +0100 From: Gary Jennejohn To: freebsd-current@freebsd.org Message-ID: <20091112182825.73b0079c@ernst.jennejohn.org> In-Reply-To: <200911121133.30784.jhb@freebsd.org> References: <20091106101943.5a763f43@ernst.jennejohn.org> <20091111231753.GA52833@dmr.ath.cx> <200911121133.30784.jhb@freebsd.org> X-Mailer: Claws Mail 3.7.2 (GTK+ 2.16.2; amd64-portbld-freebsd8.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Emil Mikulic Subject: Re: 8.0RC2 amd64 - kernel panic running make buildworld X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: gary.jennejohn@freenet.de List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Nov 2009 17:28:28 -0000 On Thu, 12 Nov 2009 11:33:30 -0500 John Baldwin wrote: > On Wednesday 11 November 2009 6:17:53 pm Emil Mikulic wrote: > > On Tue, Nov 10, 2009 at 09:15:42AM -0800, Mark Atkinson wrote: > > > Also, you can try adding: > > > > > > hw.mca.enabled="1" in /boot/loader.conf > > > > This is a little off-topic, but: > > Why is this disabled by default in FreeBSD? > > Because it is still a new feature and on some machines it causes > panics/freezes out of the box. I'd be happier turning it on once it has been > tested more and once we've figured out the reasons for the various freezes, > etc. that seem to be related to enabling it. > A safer way to test this is to enter set hw.mca.enabled="1" on the loader command line rather than putting it into loader.conf. I just did this on my "consumer" AMD64 board without ill effect. --- Gary Jennejohn