Return-path: Received: from fk-out-0910.google.com ([209.85.128.187]:25371 "EHLO fk-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751318AbZELReh (ORCPT ); Tue, 12 May 2009 13:34:37 -0400 Received: by fk-out-0910.google.com with SMTP id 18so56883fkq.5 for ; Tue, 12 May 2009 10:34:36 -0700 (PDT) Subject: Re: [BUG] Crda oopses the system From: Maxim Levitsky To: "Luis R. Rodriguez" Cc: Pavel Roskin , linux-wireless In-Reply-To: <43e72e890905121024i79f743efo68c858bc0a0939a@mail.gmail.com> References: <1241499867.4816.18.camel@maxim-laptop> <43e72e890905051146n48bdad57s9db40a6e016cb81b@mail.gmail.com> <1241606838.18657.1.camel@maxim-laptop> <1241642056.3289.6.camel@mj> <1241958023.6051.14.camel@maxim-laptop> <43e72e890905101133w2314250s7b95a8c100e83cce@mail.gmail.com> <1241984076.6051.18.camel@maxim-laptop> <43e72e890905101236h2cd24edewae808da384ae48dd@mail.gmail.com> <1242140728.5626.3.camel@maxim-laptop> <43e72e890905121024i79f743efo68c858bc0a0939a@mail.gmail.com> Content-Type: text/plain Date: Tue, 12 May 2009 20:34:31 +0300 Message-Id: <1242149671.5210.2.camel@maxim-laptop> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, 2009-05-12 at 10:24 -0700, Luis R. Rodriguez wrote: > On Tue, May 12, 2009 at 8:05 AM, Maxim Levitsky wrote: > > On Sun, 2009-05-10 at 12:36 -0700, Luis R. Rodriguez wrote: > >> On Sun, May 10, 2009 at 12:34 PM, Maxim Levitsky > >> wrote: > >> > On Sun, 2009-05-10 at 11:33 -0700, Luis R. Rodriguez wrote: > >> >> On Sun, May 10, 2009 at 5:20 AM, Maxim Levitsky wrote: > >> >> > On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote: > >> >> >> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko > >> >> > > >> >> > I have recompiled the kernel with debugging info. > >> >> > > >> >> > This is new backtrace: > > > > Ok, here is what I found: > > > > The real BUG_ON that fires up is at > > > > wireless/reg.c: __set_regdom: BUG_ON(!country_ie_regdomain) > > > > Confirmed by replacing it with printk. > > > > > > I attach a beacon sample that triggers this: > > Thanks for that. Was this from wireless-testing? If so as of what SHA1 > sum? Can you provide steps to reproduce? What AP? What card? wireless-testing, b2382a4aeff07a481ccf860e4f716b48b52e3781 Steps to reproduce is to connect to an AP that transmits a beacon frame like I attached. Happens always. -git NM and wpa_supplicant, running normally. What AP? I don't know myself. What card?, iwl3945 Best regards, Maxim Levitsky