From owner-freebsd-questions Sun Feb 3 19:49: 4 2002 Delivered-To: freebsd-questions@freebsd.org Received: from fledge.watson.org (fledge.watson.org [204.156.12.50]) by hub.freebsd.org (Postfix) with ESMTP id 35A3D37B419 for ; Sun, 3 Feb 2002 19:49:01 -0800 (PST) Received: from fledge.watson.org (fledge.pr.watson.org [192.0.2.3]) by fledge.watson.org (8.11.6/8.11.5) with SMTP id g143mhD36741; Sun, 3 Feb 2002 22:48:44 -0500 (EST) (envelope-from robert@fledge.watson.org) Date: Sun, 3 Feb 2002 22:48:43 -0500 (EST) From: Robert Watson X-Sender: robert@fledge.watson.org To: hh Cc: questions@freebsd.org Subject: Re: crashs on 4.5RC In-Reply-To: <20020203201654.7cd0390f.hh@dsgx.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Sun, 3 Feb 2002, hh wrote: > > Fatal trap 12: page fault while in kernel mode > > fault virtual address = 0x28 > > fault code = supervisor read, page not present > > instruction pointer = 0x8:0xc020646c > > stack pointer = 0x10:0xc034c384 > > frame pointer = 0x10:0xc034c3a4 > > 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 = > > trap number = 12 > > panic: page fault That's a NULL pointer dereference in some or another piece of kernel code -- the 0x28 as a fault address indicates that a structure pointer was dereferenced. Can you recompile with options DDB and get a stack trace? Robert N M Watson FreeBSD Core Team, TrustedBSD Project robert@fledge.watson.org NAI Labs, Safeport Network Services To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message