I'm seeing a reproducible crash on 1.6.1 if I remove a wi card after 
acquiring a routable v6 address.  It's panicking with a uvm_fault in 
if_detach.  For reasons that aren't clear, it isn't generating a dump; 
it hangs in "syncing disks".  Has anyone else seen this?  The 
environment is 1.6.1 (more precisely, 1.6.2--) on a Thinkpad T21 with a 
Lucent wi card.


		--Steve Bellovin, http://www.research.att.com/~smb