From owner-freebsd-current@FreeBSD.ORG Fri Sep 30 11:13:38 2005 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E885C16A41F; Fri, 30 Sep 2005 11:13:38 +0000 (GMT) (envelope-from gavin.atkinson@ury.york.ac.uk) Received: from mail-gw1.york.ac.uk (mail-gw1.york.ac.uk [144.32.128.246]) by mx1.FreeBSD.org (Postfix) with ESMTP id 256EB43D48; Fri, 30 Sep 2005 11:13:37 +0000 (GMT) (envelope-from gavin.atkinson@ury.york.ac.uk) Received: from buffy.york.ac.uk (buffy-128.york.ac.uk [144.32.128.160]) by mail-gw1.york.ac.uk (8.12.10/8.12.10) with ESMTP id j8UBDXAx028155; Fri, 30 Sep 2005 12:13:33 +0100 (BST) Received: from buffy.york.ac.uk (localhost [127.0.0.1]) by buffy.york.ac.uk (8.13.4/8.13.4) with ESMTP id j8UBDWV8014533; Fri, 30 Sep 2005 12:13:32 +0100 (BST) (envelope-from gavin.atkinson@ury.york.ac.uk) Received: (from ga9@localhost) by buffy.york.ac.uk (8.13.4/8.13.4/Submit) id j8UBDW8k014529; Fri, 30 Sep 2005 12:13:32 +0100 (BST) (envelope-from gavin.atkinson@ury.york.ac.uk) X-Authentication-Warning: buffy.york.ac.uk: ga9 set sender to gavin.atkinson@ury.york.ac.uk using -f From: Gavin Atkinson To: Kris Kennaway In-Reply-To: <20050929163541.GA53754@xor.obsecurity.org> References: <1123588622.893.15.camel@buffy.york.ac.uk> <200508091050.21811.jhb@FreeBSD.org> <1123603336.897.3.camel@buffy.york.ac.uk> <200509291210.38799.jhb@FreeBSD.org> <1128011075.44550.21.camel@buffy.york.ac.uk> <1128011524.44550.26.camel@buffy.york.ac.uk> <20050929163541.GA53754@xor.obsecurity.org> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Fri, 30 Sep 2005 12:13:31 +0100 Message-Id: <1128078811.4002.3.camel@buffy.york.ac.uk> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 FreeBSD GNOME Team Port X-York-MailScanner: Found to be clean X-York-MailScanner-From: gavin.atkinson@ury.york.ac.uk Cc: freebsd-current@freebsd.org Subject: Re: 6.0-BETA2 DRM/witness panic: Assertion j < 1000 failed at /usr/src/sys/kern/subr_witness.c:1513 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Fri, 30 Sep 2005 11:13:39 -0000 On Thu, 2005-09-29 at 12:35 -0400, Kris Kennaway wrote: > On Thu, Sep 29, 2005 at 05:32:03PM +0100, Gavin Atkinson wrote: > > On Thu, 2005-09-29 at 17:24 +0100, Gavin Atkinson wrote: > > > On Thu, 2005-09-29 at 12:10 -0400, John Baldwin wrote: > > > > On Tuesday 09 August 2005 12:02 pm, Gavin Atkinson wrote: > > > > > On Tue, 2005-08-09 at 10:50 -0400, John Baldwin wrote: > > > > > > On Tuesday 09 August 2005 07:57 am, Gavin Atkinson wrote: > > > > > > > Hi, > > > > > > > > > > > > > > I have a regular panic (3 times a day) on a system running 6.0-BETA2 > > > > > > > which was very stable under 5.4. dmesg available at > > > > > > > http://www.devrandom.co.uk/freebsd/dmesg-buffy-20050809 . The panic > > > > > > > seems to relate to DRM, I have a ATI Radeon QY RV100 7000/VE card. > > > > > > > > > > > > Do a 'show witness', it looks like witness has a cycle somehow. Normally > > > > > > these can only occur if there is a cycle in the static lock order. > > > > > > > > > > http://www.devrandom.co.uk/freebsd/sh-witness-buffy-20050809 > > > > > > > > > > Gavin > > > > > > > > Do you still get this panic on more recent 6.0? > > > > > > I do with BETA3 from Sept 6th. I'll update again (after re-adding > > > WITNESS etc to GENERIC) and test it again. > > > > I should have said that I also stepped back in time several times, and > > was still getting the panic with kernel from sources dated April 15th, > > ruling out the major DRM upgrade in July. I couldn't get any of the > > screensavers that easily provoke the panic to run on a pre-April 15th > > system, even after recompiling all ports. > > You're not using modules, right? Or at least, you're remembering to > recompile them all each time you update your kernel? No, all fully in sync. I suspect it may have had something to do with a shared library bump that I hadn't noticed or something, although deleting all of the newer (I was going backwards) shared libs that I could find before the ports recompile didn't help. As this machine is essential to my daily work (and Gnome etc also became unreliable), I couldn't afford to spend any more time looking into it. Gavin