BUG: oops and lock with rfcomm, while connecting

Hi, 
I would appreciate if somebody can take a quick look and tell me if the 
attached trace makes any sense. 

Story is, this happened while trying to connect ppp over BT, with USB external 
dongle and device (bt phone) in range.

Kernel is Linus's latest, but I suspect the bug is a one-off probability that 
just happened to me here, not strictly contained to this latest version. I 
will be trying to reproduce it in the next days.
All the attached trace was logged at the same sec.

Thank you.