From owner-cvs-all@FreeBSD.ORG Wed Jul 7 15:35:22 2004 Return-Path: Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CB58716A4CF for ; Wed, 7 Jul 2004 15:35:22 +0000 (GMT) Received: from mail4.speakeasy.net (mail4.speakeasy.net [216.254.0.204]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9185043D48 for ; Wed, 7 Jul 2004 15:35:22 +0000 (GMT) (envelope-from jhb@FreeBSD.org) Received: (qmail 11717 invoked from network); 7 Jul 2004 15:35:22 -0000 Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) encrypted SMTP for ; 7 Jul 2004 15:35:21 -0000 Received: from 10.50.41.229 (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.11/8.12.11) with ESMTP id i67FZH4i069655; Wed, 7 Jul 2004 11:35:18 -0400 (EDT) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: Robert Watson Date: Wed, 7 Jul 2004 11:36:31 -0400 User-Agent: KMail/1.6 References: <200407060557.i665vUrW007557@repoman.freebsd.org> In-Reply-To: <200407060557.i665vUrW007557@repoman.freebsd.org> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200407071136.31815.jhb@FreeBSD.org> 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 sched_ule.c X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Jul 2004 15:35:23 -0000 On Tuesday 06 July 2004 01:57 am, Robert Watson wrote: > rwatson 2004-07-06 05:57:30 UTC > > FreeBSD src repository > > Modified files: > sys/kern sched_ule.c > Log: > Temporarily disable preemption in SCHED_ULE due to reported panics and > hangs due to recent preemption changes. This change appears to remove > the panic that I was running into, but at the cost of increasing > ithread scheduling latency, and as such is a temporary band-aid until > jhb has a chance to resolve the ule<->preemption interaction that is > the source of the problem. If it doesn't fix the problem for others-- > sorry! It it just broken on SMP? I actually did the commit from a UP preemption kernel using SCHED_ULE from within X11 with KDE, etc. running. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org