> > > OK, but this doesn't explain the fact that you get the exact same error 
> > > message from gdb if you try to do "target kcore /dev/mem" after opening 
> > > /netbsd.
> > 
> > I think your problem is the same with mine:
> > http://mail-index.netbsd.org/port-sun3/2000/10/02/0000.html
> > (Yes, this made me search another way to track the kmem_map bug :-)
> 
> Agreed, I get the same error.  I just wanted to point out that doing a 
> "target kcore" on /dev/mem gives the exact same error, leading me to believe
> something is (also) wrong with gdb.

Or perhaps, with the /dev/mem implementation :(