From owner-cvs-all@FreeBSD.ORG Wed Jul 7 16:10:52 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 CA5C516A4CE; Wed, 7 Jul 2004 16:10:52 +0000 (GMT) Received: from cell.sick.ru (cell.sick.ru [217.72.144.68]) by mx1.FreeBSD.org (Postfix) with ESMTP id 10C1B43D48; Wed, 7 Jul 2004 16:10:52 +0000 (GMT) (envelope-from glebius@cell.sick.ru) Received: from cell.sick.ru (glebius@localhost [127.0.0.1]) by cell.sick.ru (8.12.9/8.12.8) with ESMTP id i67GAoMO075616 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 7 Jul 2004 20:10:50 +0400 (MSD) (envelope-from glebius@cell.sick.ru) Received: (from glebius@localhost) by cell.sick.ru (8.12.9/8.12.6/Submit) id i67GAo1R075615; Wed, 7 Jul 2004 20:10:50 +0400 (MSD) Date: Wed, 7 Jul 2004 20:10:49 +0400 From: Gleb Smirnoff To: Robert Watson Message-ID: <20040707161049.GA75603@cell.sick.ru> References: <20040707155348.GC75364@cell.sick.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.6i cc: cvs-src@freebsd.org cc: src-committers@freebsd.org cc: cvs-all@freebsd.org cc: John Baldwin 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 16:10:52 -0000 On Wed, Jul 07, 2004 at 12:06:34PM -0400, Robert Watson wrote: R> > J> > Modified files: R> > J> > sys/kern sched_ule.c R> > J> > Log: R> > J> > Temporarily disable preemption in SCHED_ULE due to reported panics and R> > J> > hangs due to recent preemption changes. This change appears to remove R> > J> > the panic that I was running into, but at the cost of increasing R> > J> > ithread scheduling latency, and as such is a temporary band-aid until R> > J> > jhb has a chance to resolve the ule<->preemption interaction that is R> > J> > the source of the problem. If it doesn't fix the problem for others-- R> > J> > sorry! R> > J> R> > J> It it just broken on SMP? I actually did the commit from a UP preemption R> > J> kernel using SCHED_ULE from within X11 with KDE, etc. running. R> > R> > it is broken on UP, too. See thread in -current. R> R> An SMP kernel on a UP system, or a UP kernel on a UP system? UP kernel on a UP system -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE