From owner-freebsd-questions@FreeBSD.ORG Thu Dec 7 22:28:39 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 98F8616A5DC for ; Thu, 7 Dec 2006 22:28:39 +0000 (UTC) (envelope-from andrew@inemy.com) Received: from server24.internet-hosting-services.com (server24.internet-hosting-services.com [66.103.152.200]) by mx1.FreeBSD.org (Postfix) with ESMTP id 47DBB43CA5 for ; Thu, 7 Dec 2006 22:27:45 +0000 (GMT) (envelope-from andrew@inemy.com) Received: from adsl-070-155-090-095.sip.asm.bellsouth.net ([70.155.90.95]:51505 helo=[192.168.1.142]) by server24.internet-hosting-services.com with esmtpa (Exim 4.52) id 1GsRjI-0002F2-EO for freebsd-questions@freebsd.org; Thu, 07 Dec 2006 17:28:36 -0500 Mime-Version: 1.0 (Apple Message framework v624) In-Reply-To: <2681.70.155.90.95.1164150679.squirrel@www.inemy.com> References: <2681.70.155.90.95.1164150679.squirrel@www.inemy.com> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: Content-Transfer-Encoding: 7bit From: Andrew Boring Date: Thu, 7 Dec 2006 17:28:33 -0500 To: freebsd-questions@freebsd.org X-Mailer: Apple Mail (2.624) X-PopBeforeSMTPSenders: andrew@inemy.com X-Antivirus-Scanner: Clean mail though you should still use an Antivirus X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - server24.internet-hosting-services.com X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - inemy.com X-Source: X-Source-Args: X-Source-Dir: Subject: Re: Dell - kernel panic problems X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Dec 2006 22:28:39 -0000 On Nov 21, 2006, at 6:11 PM, andrew@inemy.com wrote: > I have problems with what appears to be kernel panics when accessing > the > disk (either reading or writing). This box does nothing at the moment > but > wait for me to install and configure something, since it's a test box > and > hasn't even made it to live testing yet. > > The panics usually happen when installing something via Ports. Today, > as I > was running a "make clean", I managed to get this one: > > Fatal trap 12: page fault while in kernel mode > fault virtual address = 0x20000 > fault code = supervisor read, page not present > instruction pointer = 0x20:0xc083f0dc Well, I'm disappointed that no one even responded with an RTFM somewhere that could I find more information on this. As it happens, a google search eventually pointed me back to this section of the FAQ: http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/ advanced.html#KERNEL-PANIC-TROUBLESHOOTING So here's the instruction pointer matching with the symbol table: #nm -n /boot/kernel/kernel | grep c083f c083f06c T pmap_clear_modify It's possible that my instruction pointer in my first email above was typo'ed, since I handwrote the panic output and typed it into my email. Any suggestions? I'm recompiling the GENERIC kernel with options DDB so I can capture the crash dump...but I would like to know if anyone has any suggestions in the meantime. -Andrew