linux-kernel - Kernel panic on stable kernel 3.8.2 when closing bluetooth dun connection

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Date:	Wed, 20 Mar 2013 11:18:38 +0100
From:	Sergio Callegari <sergio.callegari@...il.com>
To:	stable@...r.kernel.org
CC:	linux-kernel@...r.kernel.org
Subject: Kernel panic on stable kernel 3.8.2 when closing bluetooth dun connection

Hi,

This is just a short note to let you know that 3.8.2 panics on closing a 
bluetooth dun connection.

This is seen with the ubuntu mainline kernel 3.8.2 that should be a vanilla 
stable kernel.

Observed on a DELL E6500 which has BCM2046 Bluetooth while connecting to the
internet using a Samsung Galaxy S mobile phone via bluetooth DUN through the 
network manager.  When network manager is asked to close the connection, the 
kernel panics, the system drops out of Xorg, shows for a couple of seconds a 
long log including the words 'panic' and 'not synching', the numlock, caps-lock 
keys start flashing and the system freezes.

It is 100% repeatable.

The ubuntu kernel, that is a 3.5.0 plus ubuntu tweaks, backports, etc does not 
panic.

Thanks for the attention and best regards,

Sergio Callegari
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