From owner-freebsd-current@FreeBSD.ORG Tue Oct 19 02:37:16 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 1E20C16A4CE; Tue, 19 Oct 2004 02:37:16 +0000 (GMT) Received: from green.homeunix.org (green@localhost [127.0.0.1]) by green.homeunix.org (8.13.1/8.13.1) with ESMTP id i9J2bEZN009424; Mon, 18 Oct 2004 22:37:15 -0400 (EDT) (envelope-from green@green.homeunix.org) Received: (from green@localhost) by green.homeunix.org (8.13.1/8.13.1/Submit) id i9J2bDF6009423; Mon, 18 Oct 2004 22:37:13 -0400 (EDT) (envelope-from green) Date: Mon, 18 Oct 2004 22:37:13 -0400 From: Brian Fundakowski Feldman To: Harald Schmalzbauer Message-ID: <20041019023713.GA1072@green.homeunix.org> References: <20040628202434.GA73213@atrbg11.informatik.tu-muenchen.de> <20040701210317.GA86225@atrbg11.informatik.tu-muenchen.de> <20040704194240.GA1658@atrbg11.informatik.tu-muenchen.de> <200407071913.46339@harryhomeworkstation> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200407071913.46339@harryhomeworkstation> User-Agent: Mutt/1.5.6i cc: freebsd-current@freebsd.org Subject: Re: WITNESS bug (Was Re: kern/68442: panic - acquiring duplicate lock of same type: "sleepq chain") 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, 19 Oct 2004 02:37:16 -0000 On Wed, Jul 07, 2004 at 07:13:46PM +0200, Harald Schmalzbauer wrote: > Am Sonntag, 4. Juli 2004 21:42 schrieb Daniel Lang: > > [...] > > > > > > Btw, the addition of WITNESS is indeed something that has > > > changed since all the trouble started. When the machine was > > > still running in a stable fashion I did not have WITNESS > > > enabled. I did it, when I put in more memory and built a PAE > > > kernel and left it in since. > > > > [..] > > > > I am now more convinced, that the bug is indeed in WITNESS itself. > > Without WITNESS the machine is running rock stable again now > > for three days. With WITNESS enabled it has crashed within minutes, > > uptime at most a few hours. Also the stack trace I got points > > into WITNESS code. > > I'd like to contribute a completley unqualifide note: > When I build a -current kernel with WITNESS and I use the nvidia driver (not > the GL-Part, just the kernel module and the x-driver) the system freezes > without panic or anything else, only a powercycle helps. > After removing WITNESS the box is running fine. Now for about 3 Weeks without > any problem..... > > If I can do any tests please give me instructions, I'd love to help. You should never not run with WITNESS_SKIPSPIN if you use modules. Any spin mutexes not listed statically in the witness code will cause your machine to immediately panic. -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\