Return-path: Received: from mail-qc0-f174.google.com ([209.85.216.174]:59953 "EHLO mail-qc0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752645Ab2DFFQa convert rfc822-to-8bit (ORCPT ); Fri, 6 Apr 2012 01:16:30 -0400 Received: by qcro28 with SMTP id o28so1278467qcr.19 for ; Thu, 05 Apr 2012 22:16:30 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: <1333630881.3494.15.camel@jlt3.sipsolutions.net> Date: Fri, 6 Apr 2012 07:16:29 +0200 Message-ID: (sfid-20120406_071634_284138_BC746D8D) Subject: Re: compat-wireless-2012-04-04 - rmmod mac80211 and PC freeze From: Janusz Dziedzic To: Johannes Berg Cc: linux-wireless@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-2 Sender: linux-wireless-owner@vger.kernel.org List-ID: W dniu 6 kwietnia 2012 07:00 u?ytkownik Janusz Dziedzic napisa?: > W dniu 5 kwietnia 2012 15:01 u?ytkownik Johannes Berg > napisa?: >> On Thu, 2012-04-05 at 14:35 +0200, Janusz Dziedzic wrote: >>> Hello, >>> >>> I am using: compat-wireless-2012-04-04 >>> >>> I am doing such test: >>> - insmod compat.ko >>> - insmod cfg80211.ko >>> - insmod mac80211.ko >>> >>> After that: >>> - rmmod mac80211 >>> >>> And have PC freeze. >>> Linux uw000950 2.6.35-32-generic #67~lucid1-Ubuntu SMP Tue Mar 6 >>> 17:48:20 UTC 2012 x86_64 GNU/Linux >> >> Works for me, but on 3.1.0. >> >>> Any idea what could be wrong, how to debug in case of such freeze? >> >> Not really. You could try the same thing from a console, rather than an >> X terminal window (that I'm guessing you're using since you saw no >> further info) and you may see some more details? >> >> johannes >> > > Seems when run from console I see: > Kernel panic - not syncing: Fatal exception in interrupt > BUG: scheduling while atomic: rmmod/15474/0x10008803 > > Next a lot of information connected with dump. > > After second try: BUG: unable to handle kernel paging request at ffffffff98d60d20 IP: update_curr+0x134/0x1e0 Thread overran stack, or stack corrupted Process rmmod BR Janusz -- Janusz Dziedzic