> > did you really compile sys/arch/amiga/amiga/autoconf.c?
> > 
> 
> No I had not, good catch.  That's not hard to fix, the iostat
> structure keeps a pointer to the structure it is holding stats for.  I
> was intending on at least building a kernel for each arch to make sure
> I had not broken any builds before doing a commit...

i don't see any point to have a "parent" pointer in io_stats or
make {disk,drive}_find return io_stats.

YAMAMOTO Takashi