From owner-freebsd-hackers@FreeBSD.ORG Tue Dec 2 17:08:58 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 2D06C106564A for ; Tue, 2 Dec 2008 17:08:58 +0000 (UTC) (envelope-from baldur@foo.is) Received: from gremlin.foo.is (gremlin.foo.is [194.105.250.10]) by mx1.freebsd.org (Postfix) with ESMTP id D5FEE8FC16 for ; Tue, 2 Dec 2008 17:08:57 +0000 (UTC) (envelope-from baldur@foo.is) Received: from 127.0.0.1 (localhost.foo.is [127.0.0.1]) by injector.foo.is (Postfix) with SMTP id 13974DA853 for ; Tue, 2 Dec 2008 16:52:59 +0000 (GMT) X-Spam-Checker-Version: SpamAssassin 3.1.7 (2006-10-05) on gremlin.foo.is X-Spam-Level: X-Spam-Status: No, score=-2.6 required=6.0 tests=BAYES_00,NO_RELAYS autolearn=ham version=3.1.7 Received: by gremlin.foo.is (Postfix, from userid 1000) id 36762DA843; Tue, 2 Dec 2008 16:52:58 +0000 (GMT) Date: Tue, 2 Dec 2008 16:52:58 +0000 From: Baldur Gislason To: freebsd-hackers@freebsd.org Message-ID: <20081202165258.GM12776@gremlin.foo.is> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.18 (2008-05-17) Subject: 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: Tue, 02 Dec 2008 17:08:58 -0000 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? Baldur