From owner-freebsd-hackers@FreeBSD.ORG Fri May 14 08:33:40 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 2357616A4CE for ; Fri, 14 May 2004 08:33:40 -0700 (PDT) Received: from mail6.speakeasy.net (mail6.speakeasy.net [216.254.0.206]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8C76C43D49 for ; Fri, 14 May 2004 08:33:39 -0700 (PDT) (envelope-from jhb@FreeBSD.org) Received: (qmail 14517 invoked from network); 14 May 2004 15:33:38 -0000 Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) encrypted SMTP for ; 14 May 2004 15:33:38 -0000 Received: from 10.50.40.205 (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.11/8.12.11) with ESMTP id i4EFXQLn027125; Fri, 14 May 2004 11:33:27 -0400 (EDT) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: freebsd-hackers@FreeBSD.org Date: Fri, 14 May 2004 11:33:49 -0400 User-Agent: KMail/1.6 References: <20040513171659.GA14716@SDF.LONESTAR.ORG> In-Reply-To: <20040513171659.GA14716@SDF.LONESTAR.ORG> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200405141133.49502.jhb@FreeBSD.org> X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on server.baldwin.cx cc: "Kevin A. Pieckiel" Subject: Re: 5.2.1 panic 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: Fri, 14 May 2004 15:33:40 -0000 On Thursday 13 May 2004 01:16 pm, Kevin A. Pieckiel wrote: > The situation: > > Dell PowerEdge 1750, Dual 3.2 GHz, 1 GB RAM. > Sources compiled from CVS on 4 May 2004, RELENG_5_2 branch. > > # uname -a > FreeBSD hr-stc-file2.smartrafficenter.net 5.2.1-RELEASE-p5 FreeBSD > 5.2.1-RELEASE-p5 #0: Tue May 4 11:02:47 EDT 2004 > toor@fileserver2.smartrafficenter.net:/usr/obj/usr/src/sys/FILESERVER1 > i386 > > One filesystem NFS mounted from another FBSD 4.9 box. > Samba 3.0.4 is installed and running (AD member server). > Samba is mapping home directories to the NFS-mounted files. > > When accessing a home directory from a Windows computer (trying > to read files from the NFS-mounted filesystem), the computer > panics and reboots. > > NFS support provided via modules, not compiled into kernel. > Gdb output and kernel config follow. > > Any ideas why or how to fix? > > Kevin > > > Gdb and backtrace output: > > This GDB was configured as "i386-unknown-freebsd"... > panic: page fault > panic messages: > --- > Fatal trap 12: page fault while in kernel mode > cpuid = 1; apic id = 01 > fault virtual address = 0x8 > fault code = supervisor read, page not present > instruction pointer = 0x8:0xc0519a64 Do 'l *0xc0519a64' in gdb to get the line that it actually faulted on. Since this is likely a NULL pointer deref that might help you fix the bug or at least find out its cause. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org