That was the really odd thing...  No dump was made:

Data modified on freelist: word 6 of object 0xf09c1100 size 84 previous type temp (0xf09e0580 != 0xdeadbeef)
...
[ netbsd ELF symbol table not valid ]
[ preserving 237124 bytes of netbsd a.out symbol table ]
Copyright (c) 1996, 1997, 1998, 1999
    The NetBSD Foundation, Inc.  All rights reserved.
...
starting system logger
starting ipmon
checking for core dump...
savecore: no core dump
starting name server

Chuck Silvers <chuq@chuq.com> writes:

> this is vaguely the same symptom as PR 7512, tho that was with 1.4 beta.
> if you put the dump somewhere I can ftp it, I'll take a look.
> 
> -Chuck
> 
> 
> 
> Michael Graff writes:
> > 
> > I just got this crash today:
> > 
> > 	Data modified on freelist: word 6 of object 0xf09c1100 size 84
> > 	previous type temp (0xf09e0580 != 0xdeadbeef)
> > 
> > Has anyone else gotten such a critter with a stock 1.4 kernel base?
> > 
> > --Michael