Date: Sat, 25 Dec 2004 23:01:55 -0500 From: "Alexandre \"Sunny\" Kovalenko" <Alex.Kovalenko@verizon.net> To: Robert Watson <rwatson@FreeBSD.org> Cc: current@FreeBSD.org Subject: Re: Problem with 802.11 ad hoc with WEP: NULL pointer dereference Message-ID: <1104033715.1729.5.camel@RabbitsDen> In-Reply-To: <Pine.NEB.3.96L.1041225202005.44820A-100000@fledge.watson.org> References: <Pine.NEB.3.96L.1041225202005.44820A-100000@fledge.watson.org>
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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)
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