I just got a panic - my first, I think.  I tried reboot but that 
didn't save core.  And of course, I didn't write down anything. 

What do I type to ddb to make it take a core dump?  I didn't see 
anything like that in the man page, yet savecore gets run near the 
end of the reboot process so there must be some way to do it. 

I did a trace before the reboot.  The names looked like a trap handler.  
I think it said 6 for the trap type at the bottom. 

 
I was trying to start a network test - the sort of thing I do all 
the time.