vkernel livelocked and core dumped when killed on -HEAD

[Matthew Dillon]

:Managed to lock up the host machine by dd-ing a large (10GB) file ... but
:couldn't get a memory dump (it seems it did not create it) ... I'll continue
:with this tomorrow when I'll feel bolder
:-- 
:Regards,
:Rumko
    
    I can temporarily lock up a machine doing that, but it recovers.  I
    haven't tracked it down yet.

    Try to determine whether your dd is permanently locking up the box, or
    just locking it up until the dd ends.

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>