From owner-freebsd-current@FreeBSD.ORG Tue Jul 20 15:20:47 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from green.homeunix.org (freefall.freebsd.org [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id 0682416A4CE; Tue, 20 Jul 2004 15:20:47 +0000 (GMT) Received: from green.homeunix.org (green@localhost [127.0.0.1]) by green.homeunix.org (8.12.11/8.12.11) with ESMTP id i6KFKkqd088177; Tue, 20 Jul 2004 11:20:46 -0400 (EDT) (envelope-from green@green.homeunix.org) Received: (from green@localhost) by green.homeunix.org (8.12.11/8.12.11/Submit) id i6KFKjRG088176; Tue, 20 Jul 2004 11:20:45 -0400 (EDT) (envelope-from green) Date: Tue, 20 Jul 2004 11:20:44 -0400 From: Brian Fundakowski Feldman To: Kevin Oberman Message-ID: <20040720152044.GB1009@green.homeunix.org> References: <20040720123220.CBD565D08@ptavv.es.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040720123220.CBD565D08@ptavv.es.net> User-Agent: Mutt/1.5.6i cc: freebsd-current@freebsd.org cc: freebsd-gnome@freebsd.org Subject: Re: [amd64] System lockups still continuing X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Tue, 20 Jul 2004 15:20:47 -0000 On Tue, Jul 20, 2004 at 05:32:20AM -0700, Kevin Oberman wrote: > > Date: Mon, 19 Jul 2004 16:09:19 -0500 (CDT) > > From: "Conrad J. Sabatier" > > > > > > On 19-Jul-2004 Kevin Oberman wrote: > > >> > > >> On 18-Jul-2004 Conrad J. Sabatier wrote: > > >> > I had posted several weeks ago about constant hard lockups of my > > >> > amd64 box. At first, I attributed the problem to GNOME, then to > > >> > my kernel config, but now it appears to me that the problem > > >> > really lies with Mozilla/Firefox. > > >> > > >> Well, another theory bites the dust. I tried running GNOME > > >> yesterday, never touched Mozilla or Firefox, and the system locked > > >> up while doing some file management chores in Nautilus. > > >> > > >> It must be something low-level in GNOME, some shared library, > > >> probably, but I have yet to track it down. > > > > > > I have lost track of the full thread and this mail list is not > > > tracked by google :-(, so this may have been ruled out. Are you sure > > > that it's not the preemption problem that is biting you? This applies > > > to CURRENT systems only, so may not be applicable to what you are > > > seeing, the symptoms are a match. > > > > Hmm, you may be right. Is there any workaround for this? I've tried > > both SCHED_ULE and SCHED_4BSD, both producing the same results. > > > > What's strange is that this only seems to occur when either running a > > full-blown GNOME desktop or using some GNOME-related app under another > > environment. > > > > I'm currently working under KDE, just for comparison, and no such > > problems have occurred, unless I try using, say, Mozilla or Firefox. > > > > I'll Cc: this to current and see what they think. > > The problem is not specific to ULE or 4BSD. A fix was checked in last > night, so cvsup and rebuild might just fix it. Early reports are that > the patch resolves the problem, but the author is not sure that this is > a complete fix. It is not a complete fix in i386/SMP, but seems to make it harder to cause the lock-up. I am not able to cause the lock-up at all simply by disabling PREEMPTION in src/sys/param.h. -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\