From owner-freebsd-hackers@FreeBSD.ORG Sun Feb 22 22:24:52 2004 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7472716A4F1 for ; Sun, 22 Feb 2004 22:24:52 -0800 (PST) Received: from hak.cnd.mcgill.ca (hak.cnd.mcgill.ca [132.216.11.133]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1AF3843D1F for ; Sun, 22 Feb 2004 22:24:52 -0800 (PST) (envelope-from mat@hak.cnd.mcgill.ca) Received: from hak.cnd.mcgill.ca (localhost [127.0.0.1]) by hak.cnd.mcgill.ca (8.12.9/8.12.8) with ESMTP id i1N6R4CR046231; Mon, 23 Feb 2004 01:27:04 -0500 (EST) (envelope-from mat@hak.cnd.mcgill.ca) Received: (from mat@localhost) by hak.cnd.mcgill.ca (8.12.9/8.12.8/Submit) id i1N6R48b046230; Mon, 23 Feb 2004 01:27:04 -0500 (EST) Date: Mon, 23 Feb 2004 01:27:04 -0500 From: Mathew Kanner To: "Brian O'Shea" Message-ID: <20040223062704.GK20226@cnd.mcgill.ca> References: <20040223055736.19639.qmail@web10505.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040223055736.19639.qmail@web10505.mail.yahoo.com> User-Agent: Mutt/1.4.1i Organization: I speak for myself, operating in Montreal, CANADA X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.62 X-Spam-Checker-Version: SpamAssassin 2.62 (2004-01-11) on hak.cnd.mcgill.ca cc: Hackers FreeBSD Subject: Re: 5.2.1-RC hangs occasionally when sound files are played using the pcm driver X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Feb 2004 06:24:52 -0000 On Feb 23, Brian O'Shea wrote: > Hello Hackers, > > My system: > > $ uname -a > FreeBSD apsara 5.2.1-RC FreeBSD 5.2.1-RC #0: Sat Feb 7 21:38:15 PST 2004 > root@apsara:/usr/src/sys/i386/compile/APSARA i386 > > $ dmesg | grep pcm > pcm0: port 0xd400-0xd4ff irq 16 at device 14.0 on pci0 > > (full dmesg output attached) > > Occasionally my system will lock up when audio files are played. I am using > the pcm driver with a CMI 8738 on-board 6-channel audio chip (SoyoPX400 Dragon > Lite motherboard). No crash dump, no panic message is displayed; the system > just freezes. It does not happen regularly--probably only once in 10 or 20 > times that the audio device is used. When it does happen, it can happen > immediately after the audio file is played, or sometimes after several > seconds. > > A quick search of the -hackers and -questions archives didn't turn up any > matches. Has anyone else seen this behavior? Would it be more useful for > me to build a debug kernel with INVARIANTS enabled and try to get the > system to panic? Hello Brian, Don Lewis commited changes to the 5.2- tree on 2/14. Could you update and try again, also please do run with witness and invariants, and if possible try to get a crashdump so we can see what's happening. Thanks, --Mat -- The state has no business in the bedrooms of the nation. - Pierre Elliott Trudeau