> I just tried this by unclicking Enable Networking in NM-applet
and no
> crash occurred.
> Is that what you did?
>
Yes, that is correct. The crash only occurs if the cable is connected
and the ethernet (wired) connection is active - if the cable is
unplugged, nothing bad happens.
Peter
To follow up: the problem actually doesn't seem to be in
NetworkManager: even when NM is turned off, running a simple ifconfig
down crashes the system.
Peter