From: "John W. Linville" <linville@tuxdriver.com>
To: Pedro Francisco <pedrogfrancisco@gmail.com>
Cc: ML linux-wireless <linux-wireless@vger.kernel.org>,
johannes@sipsolutions.net
Subject: Re: unloading WiFi modules is usually triggering kernel crash
Date: Tue, 31 Jul 2012 09:13:11 -0400 [thread overview]
Message-ID: <20120731131311.GA19067@tuxdriver.com> (raw)
In-Reply-To: <CAJZjf_wv=+HKLwnH-=rvx9h=0jEGzoCrd-a8GOW-QnXfOVgc_g@mail.gmail.com>
On Tue, Jul 31, 2012 at 01:54:52PM +0100, Pedro Francisco wrote:
> 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.
Looks the same as this one, FWIW...
https://bugzilla.redhat.com/show_bug.cgi?id=834158
John
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
next prev parent reply other threads:[~2012-07-31 13:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-31 12:54 unloading WiFi modules is usually triggering kernel crash Pedro Francisco
2012-07-31 13:13 ` John W. Linville [this message]
2012-08-07 10:22 ` Stanislaw Gruszka
2012-08-30 15:58 ` Pedro Francisco
2012-09-26 12:47 ` Pedro Francisco
2012-10-03 14:30 ` Stanislaw Gruszka
2012-10-09 9:14 ` Pedro Francisco
2012-10-12 12:13 ` Stanislaw Gruszka
2012-10-15 11:03 ` Johannes Berg
2012-10-15 15:48 ` Pedro Francisco
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