Return-path: Received: from mail-qc0-f174.google.com ([209.85.216.174]:44872 "EHLO mail-qc0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755977Ab2GaMzO (ORCPT ); Tue, 31 Jul 2012 08:55:14 -0400 Received: by qcro28 with SMTP id o28so3617689qcr.19 for ; Tue, 31 Jul 2012 05:55:13 -0700 (PDT) MIME-Version: 1.0 From: Pedro Francisco Date: Tue, 31 Jul 2012 13:54:52 +0100 Message-ID: (sfid-20120731_145519_552712_8E3F6AA6) Subject: unloading WiFi modules is usually triggering kernel crash To: ML linux-wireless Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: I've noticed in the past few days a pattern: sometimes nm-applet starts showing empty bars for the signal strength. Running the script: sudo ifconfig wlan0 down; sleep 1 sudo rmmod hp_wmi; sudo rmmod iwl3945; sudo rmmod iwlegacy; sudo rmmod mac80211; sudo rmmod cfg80211 sleep 2; sudo rmmod rfkill; sync sudo modprobe rfkill; sudo modprobe cfg80211; sudo modprobe mac80211; sudo modprobe iwlegacy sudo modprobe iwl3945; sudo modprobe hp_wmi; sleep 1; sudo ifconfig wlan0 up usually triggers a kernel crash. This has happened twice so far. I tried it now for the third time but it didn't crash. Logs (running with slub_debug ): https://dl.dropbox.com/u/1332655/WiFi-issues/notTainted-cfg80211_mlme_disassoc-WARNING.log https://dl.dropbox.com/u/1332655/WiFi-issues/alreadyTainted-debug_print_object-WARNING.log (debug_print_object-WARNING was caused by running the above script rmmoding things) https://dl.dropbox.com/u/1332655/WiFi-issues/iw_dev_scan.log https://dl.dropbox.com/u/1332655/WiFi-issues/gshell-wifiBars_empty.png Any ideas on what is going on? Looking at other mails around here it seems not to be driver specific, at least the cfg80211_mlme_disassoc part. Thanks in Advance, -- Pedro