Kernel panic on stable kernel 3.8.2 when closing bluetooth dun connection

Sergio Callegari
2013-03-20T10:18:49Z

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