From owner-cvs-src@FreeBSD.ORG Wed Jul 7 15:53:51 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 C7A1616A4CE; Wed, 7 Jul 2004 15:53:51 +0000 (GMT) Received: from cell.sick.ru (cell.sick.ru [217.72.144.68]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1253743D2D; Wed, 7 Jul 2004 15:53:51 +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 i67FrmMO075503 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 7 Jul 2004 19:53:49 +0400 (MSD) (envelope-from glebius@cell.sick.ru) Received: (from glebius@localhost) by cell.sick.ru (8.12.9/8.12.6/Submit) id i67FrmIp075502; Wed, 7 Jul 2004 19:53:48 +0400 (MSD) Date: Wed, 7 Jul 2004 19:53:48 +0400 From: Gleb Smirnoff To: John Baldwin Message-ID: <20040707155348.GC75364@cell.sick.ru> References: <200407060557.i665vUrW007557@repoman.freebsd.org> <200407071136.31815.jhb@FreeBSD.org> Mime-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline In-Reply-To: <200407071136.31815.jhb@FreeBSD.org> User-Agent: Mutt/1.5.6i cc: cvs-src@freebsd.org cc: src-committers@freebsd.org cc: Robert Watson cc: cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/kern sched_ule.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: Wed, 07 Jul 2004 15:53:51 -0000 John, On Wed, Jul 07, 2004 at 11:36:31AM -0400, John Baldwin wrote: J> > Modified files: J> > sys/kern sched_ule.c J> > Log: J> > Temporarily disable preemption in SCHED_ULE due to reported panics and J> > hangs due to recent preemption changes. This change appears to remove J> > the panic that I was running into, but at the cost of increasing J> > ithread scheduling latency, and as such is a temporary band-aid until J> > jhb has a chance to resolve the ule<->preemption interaction that is J> > the source of the problem. If it doesn't fix the problem for others-- J> > sorry! J> J> It it just broken on SMP? I actually did the commit from a UP preemption J> kernel using SCHED_ULE from within X11 with KDE, etc. running. it is broken on UP, too. See thread in -current. -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE