From owner-freebsd-hackers@FreeBSD.ORG Thu Dec 4 21:25:22 2008 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E89E31065692 for ; Thu, 4 Dec 2008 21:25:22 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from server.baldwin.cx (bigknife-pt.tunnel.tserv9.chi1.ipv6.he.net [IPv6:2001:470:1f10:75::2]) by mx1.freebsd.org (Postfix) with ESMTP id 88FDB8FC17 for ; Thu, 4 Dec 2008 21:25:22 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from localhost.corp.yahoo.com (john@localhost [IPv6:::1]) (authenticated bits=0) by server.baldwin.cx (8.14.3/8.14.3) with ESMTP id mB4LOIOo033364; Thu, 4 Dec 2008 16:25:10 -0500 (EST) (envelope-from jhb@freebsd.org) From: John Baldwin To: freebsd-hackers@freebsd.org Date: Thu, 4 Dec 2008 15:06:22 -0500 User-Agent: KMail/1.9.7 References: <20081202165258.GM12776@gremlin.foo.is> In-Reply-To: <20081202165258.GM12776@gremlin.foo.is> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200812041506.22371.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-2.0.2 (server.baldwin.cx [IPv6:::1]); Thu, 04 Dec 2008 16:25:10 -0500 (EST) X-Virus-Scanned: ClamAV 0.93.1/8721/Thu Dec 4 08:26:10 2008 on server.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.6 required=4.2 tests=AWL,BAYES_00,NO_RELAYS autolearn=ham version=3.1.3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on server.baldwin.cx Cc: Baldur Gislason Subject: Re: Help debugging, machine won't boot anymore. X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Dec 2008 21:25:23 -0000 On Tuesday 02 December 2008 11:52:58 am Baldur Gislason wrote: > I have a machine running 7.0-STABLE/amd64 and it has suddenly > stopped booting. It just leaves me at the debugger with this message: > > Fatal trap 9: general protection fault while in kernel mode > cpuid = 0; apic id = 00 > instruction pointer = 0x8:0xffffffff804d913d > stack pointer = 0x10:0xffffffff80c9ec10 > frame pointer = 0x10:0xffffffff80c9ec70 > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, long 1, def32 0, gran 1 > processor eflags = interrupt enabled, resume, IOPL = 0 > current process = 0 (swapper) > [thread pid 0 tid 0 ] > Stopped at device_probe_child+0x61: movq 0x28(%rax),%rsi > db> > > dmesg at http://foo.is/~baldur/enigmaboot.txt > The ACPI warning has always been there. > > Any places of interest in the debugger? What's a likely culprit? bad RAM? I would get a stack trace first. -- John Baldwin