From owner-freebsd-current@FreeBSD.ORG Thu Jan 26 15:49:53 2006 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 4284416A420; Thu, 26 Jan 2006 15:49:53 +0000 (GMT) (envelope-from cbh-freebsd-current@groups.chrishedley.com) Received: from lon-mail-4.gradwell.net (lon-mail-4.gradwell.net [193.111.201.130]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1BA1A43D5A; Thu, 26 Jan 2006 15:49:51 +0000 (GMT) (envelope-from cbh-freebsd-current@groups.chrishedley.com) Received: from 53-233.adsl.zetnet.co.uk ([194.247.53.233] helo=mail.chrishedley.com ident=postmaster&pop3*chrishedley$com) by lon-mail-4.gradwell.net with esmtpa (Gradwell gwh-smtpd 1.207) id 43d8ef9e.fd6d.13a; Thu, 26 Jan 2006 15:49:50 +0000 (envelope-sender ) Received: from localhost (localhost [127.0.0.1]) by mail.chrishedley.com (Postfix) with ESMTP id 869CABC57; Thu, 26 Jan 2006 15:49:42 +0000 (GMT) Received: from mail.chrishedley.com ([127.0.0.1]) by localhost (mail.chrishedley.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 18130-03; Thu, 26 Jan 2006 15:49:40 +0000 (GMT) Received: from aga.cbhnet (aga.cbhnet [192.168.1.16]) by mail.chrishedley.com (Postfix) with ESMTP id E3BBFBBE3; Thu, 26 Jan 2006 15:49:40 +0000 (GMT) Date: Thu, 26 Jan 2006 15:49:58 +0000 (GMT) From: Chris Hedley X-X-Sender: cbh@aga.cbhnet To: current@freebsd.org In-Reply-To: <20060124171443.X94816@teapot.cbhnet> Message-ID: <20060126154605.C54781@aga.cbhnet> References: <20060123112629.F79825@teapot.cbhnet> <200601231624.14321.jhb@freebsd.org> <20060124100055.B84257@teapot.cbhnet> <200601241045.06880.jhb@freebsd.org> <20060124171443.X94816@teapot.cbhnet> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Virus-Scanned: amavisd-new at chrishedley.com Cc: freebsd-current@freebsd.org Subject: Re: -CURRENT spontaneously rebooting when using X 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: Thu, 26 Jan 2006 15:49:53 -0000 On Tue, 24 Jan 2006, Chris Hedley wrote: > On Tue, 24 Jan 2006, John Baldwin wrote: >> On Tuesday 24 January 2006 05:03, Chris Hedley wrote: >>> On Mon, 23 Jan 2006, John Baldwin wrote: >>>> It's a bug, but you can try this workaround: >>> >>> Unfortunately that caused my system to lock up at (presumably) the same >>> point it was crashing before; testing it a couple of times produced the >>> same result. Is there anything you want me to do to try to extract some >>> more details from it? >> >> Ah, sorry then. The bug is that some thread has gone to sleep while >> holding a >> mutex and now another thread wants that mutex. Try turning on witness as >> it >> will tell you when the first thread goes to sleep (the real bug). > > I've done that, and (perhaps unhelpfully) ran cvsup before rebuilding, so one > or the other has fixed my problem somehow. When I'm feeling brave enough > I'll turn off witness again and see if the problem returns; I'll report back > if it does... Just to close this one down, I turned off witness again and the problem didn't come back, so it looks like I must've just cvsuped the kernel at a bad time. It feels like it's quite solid now, whatever I chuck at it. Cheers, Chris.