From owner-freebsd-bugs@FreeBSD.ORG Wed Nov 5 15:17:33 2003 Return-Path: Delivered-To: freebsd-bugs@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B64D216A4CE for ; Wed, 5 Nov 2003 15:17:33 -0800 (PST) Received: from mail.speakeasy.net (mail6.speakeasy.net [216.254.0.206]) by mx1.FreeBSD.org (Postfix) with ESMTP id BEAB643FF7 for ; Wed, 5 Nov 2003 15:17:32 -0800 (PST) (envelope-from jhb@FreeBSD.org) Received: (qmail 14161 invoked from network); 5 Nov 2003 23:17:32 -0000 Received: from unknown (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender )encrypted SMTP for ; 5 Nov 2003 23:17:32 -0000 Received: from laptop.baldwin.cx (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.9/8.12.9) with ESMTP id hA5NH1ce077495; Wed, 5 Nov 2003 18:17:01 -0500 (EST) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.5.4 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <200311041903.11845.jrh@it.uc3m.es> Date: Wed, 05 Nov 2003 18:17:01 -0500 (EST) From: John Baldwin To: Juan Rodriguez Hervella X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp) cc: freebsd-bugs@FreeBSD.org Subject: RE: FreeBSD-4.9.0-release, "page fault while in kernel mode" X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Nov 2003 23:17:33 -0000 On 04-Nov-2003 Juan Rodriguez Hervella wrote: > Hello, > > I've got this fault when my machine was rebooting. > > Fortunately I've got the "kernel.0" and "vmcore.0" > files on /var/crash. > > If you need more info please ask me, I'm not an expert > on kgdb.... > > PS: If you want more info, reply to me directly because I'm not subscribe to > the list ! > > Thanks! > > > Fatal trap 12: page fault while in kernel mode > fault virtual address = 0x70 > fault code = supervisor read, page not present > instruction pointer = 0x8:0xc025577c > stack pointer = 0x10:0xc0461628 > frame pointer = 0x10:0xc046164c > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, def32 1, gran 1 > processor eflags = interrupt enabled, resume, IOPL = 0 > current process = Idle > interrupt mask = net tty bio cam > trap number = 12 > panic: page fault > > syncing disks... BTW, if you have a kernel.debug for this kernel, if you can pop into gdb and do 'l *0xc02577c' that might help figure out where it is breaking and help it get fixed. If you don't have a kernel.debug (kernel built with config -g) but this is easily reproducible, then you can build a debug kernel, reproduce it, and use the instruction pointer address for the first fault from that panic in the gdb command instead. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/