From owner-freebsd-questions@FreeBSD.ORG Sun Feb 25 08:24:05 2007 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 43D8516A403 for ; Sun, 25 Feb 2007 08:24:05 +0000 (UTC) (envelope-from kip.macy@gmail.com) Received: from mu-out-0910.google.com (mu-out-0910.google.com [209.85.134.186]) by mx1.freebsd.org (Postfix) with ESMTP id C8B0A13C474 for ; Sun, 25 Feb 2007 08:24:04 +0000 (UTC) (envelope-from kip.macy@gmail.com) Received: by mu-out-0910.google.com with SMTP id g7so902231muf for ; Sun, 25 Feb 2007 00:24:03 -0800 (PST) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=jnAcvstAS3ww8P5divm4RqY7iU8cV4F1RTo/hxyZbbBEYSVzycNcYbj205Uh8EDeba76UT0BfnYTPFp4MDFkGM2eVG4MQu/A8r4RHx3MhtgZY4m9it43YbGcBOX8xVQeCV64dgnw3wVZCn57YuRJOuGoQN74273uH7VdRTLEezg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=cMa5J0pTHXG48RXXB/NQlgQHRH6scPe6NHlZ6JqMcqh9rjUGxI0KaMQU+zVQ+/qZaR3r8n7zhRL0nB05weeNOIZ36inTZ6wnaX/e8oMWWDsY8QX8IL3S1q/pa6FoAJ5cj0vxyIw1jhbKOekJepusBnTCmdSFNIF+xtCCBzk2O9I= Received: by 10.82.177.3 with SMTP id z3mr1224965bue.1172390395751; Sat, 24 Feb 2007 23:59:55 -0800 (PST) Received: by 10.82.151.15 with HTTP; Sat, 24 Feb 2007 23:59:55 -0800 (PST) Message-ID: Date: Sat, 24 Feb 2007 23:59:55 -0800 From: "Kip Macy" To: "Joe Auty" In-Reply-To: <6B2A41DC-79FA-42A1-B1BC-BB9F0A74B765@netmusician.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <6B2A41DC-79FA-42A1-B1BC-BB9F0A74B765@netmusician.org> Cc: freebsd-hackers@freebsd.org, FreeBSD Questions Subject: Re: kernel panic at boot on any 6.x OS 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: Sun, 25 Feb 2007 08:24:05 -0000 It looks as if you've hit a device driver that is trying to print out a null string. The message you've given doesn't provide any more information than that. If you install a snapshot kernel it will probably have ddb compiled in which will allow you to at least get a backtrace. I'm sorry you're having trouble. -Kip On 2/24/07, Joe Auty wrote: > Hello, > > (sorry, don't know whether kernel problems should go to questions or > hackers, or both).. > > This has been a long-standing problem of mine, but I always ignored > it hoping it would go away on its own with a future 6.x release, but > it remains... > > No matter whether I boot into safe mode or regular mode, with all > kernel extensions disabled in /boot/loader.conf, I get the following > panic late at boot of a fresh RELENG_6_2 kernel (with only a few > services left to bring up). The 6.x kernels I've tried all build and > installed cleanly without any errors... > > > > WARNING: Device driver " > > > > Fatal trap 12: page fault while in kernel mode > > fault virtual address = 0x400000 > > fault code = supervisor read, page not present > > instruction pointer = 0x20:0xc06d4614 > > stack pointer = 0x28:0xf015491c > > frame pointer = 0x28:0xf015491c > > code segment = base 0x0, limit 0xffffff, type 0x1b > > = DPL 0, pres 1, def32 1, gran 1 > > processor eflags = interupt enabled, resume, IOPL = 0 > > current process = 898 (kldload) > > trap number = 12 > > panic: page fault > > uptime: 36s > > cannot dump. No dump device defined > > automatic reboot in 15 seconds > > > This problem does not occur within any 5.x OS for me. I would > certainly like to resolve this issue now, but this sort of debugging > is over my head beyond running fsck (which I've tried). Any ideas here? > > Thanks in advance for your help! > > > > > > ----------- > Joe Auty > NetMusician: web publishing software for musicians > http://www.netmusician.org > joe@netmusician.org > > > >