From owner-cvs-src@FreeBSD.ORG Fri Aug 6 17:46:58 2004 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E3F8416A4D1 for ; Fri, 6 Aug 2004 17:46:57 +0000 (GMT) Received: from mail2.speakeasy.net (mail2.speakeasy.net [216.254.0.202]) by mx1.FreeBSD.org (Postfix) with ESMTP id 834F843D46 for ; Fri, 6 Aug 2004 17:46:57 +0000 (GMT) (envelope-from jhb@FreeBSD.org) Received: (qmail 21212 invoked from network); 6 Aug 2004 17:46:57 -0000 Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) encrypted SMTP for ; 6 Aug 2004 17:46:56 -0000 Received: from 10.50.40.208 (gw1.twc.weather.com [216.133.140.1]) (authenticated bits=0) by server.baldwin.cx (8.12.11/8.12.11) with ESMTP id i76HkJUE050210; Fri, 6 Aug 2004 13:46:53 -0400 (EDT) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: Scott Long Date: Fri, 6 Aug 2004 13:46:19 -0400 User-Agent: KMail/1.6 References: <200408061549.i76Fni3I019460@repoman.freebsd.org> <4113AC45.1050003@freebsd.org> In-Reply-To: <4113AC45.1050003@freebsd.org> MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200408061340.15480.jhb@FreeBSD.org> Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on server.baldwin.cx cc: cvs-src@FreeBSD.org cc: src-committers@FreeBSD.org cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern kern_switch.c X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Aug 2004 17:46:58 -0000 On Friday 06 August 2004 12:05 pm, Scott Long wrote: > John Baldwin wrote: > > jhb 2004-08-06 15:49:44 UTC > > > > FreeBSD src repository > > > > Modified files: > > sys/kern kern_switch.c > > Log: > > Don't scare users with a warning about preemption being off when it > > isn't yet safe to have on by default. > > > > Revision Changes Path > > 1.75 +2 -0 src/sys/kern/kern_switch.c > > I was actually hoping to leave this on as a reminder to get us to fix > the underlying problems, and only turning it off if absolutely necessary > for the release. Sorry that I didn't mention this sooner. Hmm, it seems at least one person on current@ was already confused by this and asking if he should turn on FULL_PREEMPTION instead. We probably don't want people doing that. :-P Also, believe me that I haven't forgotten about the preemption stability problems. I just need to reproduce these problems on machines with a serial console. The only machine I can reproduce hangs on so far is my laptop which has no serial port. :( -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org