From owner-freebsd-current@FreeBSD.ORG Sun Dec 26 04:02:04 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3420516A4CF; Sun, 26 Dec 2004 04:02:04 +0000 (GMT) Received: from out012.verizon.net (out012pub.verizon.net [206.46.170.137]) by mx1.FreeBSD.org (Postfix) with ESMTP id A292D43D58; Sun, 26 Dec 2004 04:02:03 +0000 (GMT) (envelope-from Alex.Kovalenko@verizon.net) Received: from RabbitsDen ([70.21.161.195]) by out012.verizon.net (InterMail vM.5.01.06.06 201-253-122-130-106-20030910) with ESMTP id <20041226040203.SYHZ10436.out012.verizon.net@RabbitsDen>; Sat, 25 Dec 2004 22:02:03 -0600 From: "Alexandre \"Sunny\" Kovalenko" To: Robert Watson In-Reply-To: References: Content-Type: text/plain; charset=iso-8859-5 Date: Sat, 25 Dec 2004 23:01:55 -0500 Message-Id: <1104033715.1729.5.camel@RabbitsDen> Mime-Version: 1.0 X-Mailer: Evolution 2.0.3 FreeBSD GNOME Team Port Content-Transfer-Encoding: 8bit X-Authentication-Info: Submitted using SMTP AUTH at out012.verizon.net from [70.21.161.195] at Sat, 25 Dec 2004 22:02:02 -0600 cc: current@FreeBSD.org Subject: Re: Problem with 802.11 ad hoc with WEP: NULL pointer dereference X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 26 Dec 2004 04:02:04 -0000 On Sat, 2004-12-25 at 20:29 +0000, Robert Watson wrote: > I recently upgraded a kernel on my notebook to Dec 23. I don't have the > date of the previous kernel on-hand, but I suspect it was late November > from before I was on travel. I have a local configuration I sometimes use > with adhoc 802.11 on a prism card using WEP, using a FreeBSD notebook as a > proxy to reach a wired network. The other system is a Mac OS X notebook. > As of the upgrade, I get a kernel page fault on the FreeBSD system > whenever I attempt to use the Mac OS X box with wireless. In fact, > booting the Mac OS X box causes the FreeBSD box to panic, presumably as > the Mac OS X box says "Hi, I'm here!". The panic is a NULL pointer > derefernece in ieee80211_find_rxnode(). I don't have the complete trap > message due to not having a serial console for the box, but below is some > core information. This is highly reproduceable; please let me know if > more information is needed. > > Robert N M Watson FreeBSD Core Team, TrustedBSD Projects > robert@fledge.watson.org Principal Research Scientist, McAfee Research If you are after quick-and-dirty workaround, you can use NDIS wrapper with your card -- I just checked this setup on my (non-prism) NDIS-wrapped card and my FreeBSD laptop was just happy talking to my iBook over adhoc network. I know that it is not a solution, but if you need connectivity now it just might get you over the hump. -- Alexandre "Sunny" Kovalenko (Олександр Коваленко)