From owner-freebsd-current@FreeBSD.ORG Thu Jun 30 01:12:41 2005 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B52A716A41F for ; Thu, 30 Jun 2005 01:12:41 +0000 (GMT) (envelope-from scottl@samsco.org) Received: from pooker.samsco.org (pooker.samsco.org [168.103.85.57]) by mx1.FreeBSD.org (Postfix) with ESMTP id E432243D55 for ; Thu, 30 Jun 2005 01:12:33 +0000 (GMT) (envelope-from scottl@samsco.org) Received: from [192.168.254.14] (imini.samsco.home [192.168.254.14]) (authenticated bits=0) by pooker.samsco.org (8.13.3/8.13.3) with ESMTP id j5U1K1N7072466; Wed, 29 Jun 2005 19:20:02 -0600 (MDT) (envelope-from scottl@samsco.org) Message-ID: <42C34640.6040305@samsco.org> Date: Wed, 29 Jun 2005 19:09:20 -0600 From: Scott Long User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.7) Gecko/20050416 X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsh.lists@comcast.net References: <42C098B0.5060004@voicenet.com> <42C119FE.7020809@comcast.net> <42C1381B.9000901@voicenet.com> <42C31D30.3000009@comcast.net> <42C3266A.3000901@voicenet.com> <42C3346B.9010408@samsco.org> <42C342F7.9080905@comcast.net> In-Reply-To: <42C342F7.9080905@comcast.net> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.8 required=3.8 tests=ALL_TRUSTED autolearn=failed version=3.0.2 X-Spam-Checker-Version: SpamAssassin 3.0.2 (2004-11-16) on pooker.samsco.org Cc: freebsd-current@freebsd.org, Adam K Kirchhoff Subject: Re: Portupgrade, -CURRENT & SMP X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 30 Jun 2005 01:12:41 -0000 Sean wrote: > Scott Long wrote: > >>> Which, yes, is quite annoying and, IMHO, is a pretty critical bug >>> that needs fixing. It makes SMP on -CURRENT nearly unusable if you >>> want to regularly update your ports. >>> >>> Adam >>> >> >> Well, you can disable SMP at boot via >> >> set hw.apic.0.disable=1 >> >> But yes, it's some sort of a bug and it needs to be fixed. I'll track >> the PR. >> >> Scott >> > > Scott, > > I checked and doing several searches through the sysctl options do not > see any such option as you list above, > set hw.apic.0.disable=1 > > I am running amd64, is this perhaps just an option for i386? > I do see a kern.smp.disabled: 0, would this instead be for amd64? > > Exactly how on boot do I break in to enter this option? > Or do I set it, then boot? > Then afterwards reset then boot again? > > Thanks > Sean > > Sorry, it's hw.apic.0.disabled=1 I missed the 'd'. It's not a sysctl, it's a tunable (they share the same namespace and often overlap, but not always). kern.smp.disabled works too. You'll need to either put these settings into /boot/loader.conf, or manually set them in the loader by hitting the space bar during the 10 second timeout. 5.x had a nice menu for doing this, but it because controversial over silly reasons and was removed. Scott