Return-path: Received: from mail-iw0-f178.google.com ([209.85.223.178]:43486 "EHLO mail-iw0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750902AbZKNR7H convert rfc822-to-8bit (ORCPT ); Sat, 14 Nov 2009 12:59:07 -0500 Received: by iwn8 with SMTP id 8so3380487iwn.33 for ; Sat, 14 Nov 2009 09:59:13 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <032b01ca64f9$f520c400$df624c00$@kaist.ac.kr> References: <02a401ca6370$51fa0ff0$f5ee2fd0$@kaist.ac.kr> <43e72e890911120732m74dbe2d4m14dd146cd0fb3016@mail.gmail.com> <43e72e890911131226i1a58560haeddca42c76bc1a9@mail.gmail.com> <032b01ca64f9$f520c400$df624c00$@kaist.ac.kr> From: "Luis R. Rodriguez" Date: Sat, 14 Nov 2009 09:58:53 -0800 Message-ID: <43e72e890911140958m138c92dat60a62607a08616b2@mail.gmail.com> Subject: Re: ath9k: Unknown symbol To: Jinsung Lee Cc: linux-wireless@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Fri, Nov 13, 2009 at 11:13 PM, Jinsung Lee wrote: > Dear Luis, > > I've compiled successfully with compat-wireless-2009-11-13 version. > Also, modprobe command has been passed successfully. > But, when configuring with "ifconfig", it shows the following kernel message and then totally shut down, resulting in reboot. > > ========================================== > ... > > <7>[  181.995318] ath: tx chmask: 1, rx chmask: 1 > <7>[  181.995328] ath: BSS Changed PREAMBLE 0 > <7>[  181.995335] ath: BSS Changed CTS PROT 0 > <1>[  181.998952] BUG: unable to handle kernel NULL pointer dereference at 00000004 Are you on 2.6.32? If so try wireless-testing directly, it'll give you what you want which is 2.6.32-rcx and the latest wireless drivers. There may be a backport issue with 2.6.32 but I cannot tell where it is crashing with the trace you pasted without debugging enabled. Luis