>All this talk of ddb reminds me of the problem I had with it on
>NetBSD_1.0beta.  I added the "option DDB" to my config file and remade
>the kernel (did a make clean and then a make) but when I installed the
>new kernel and rebooted the bootstrap loader would load the kernel and
>then the machine would immediately reboot.  Anyone else had the same
>problem?

Do you have old bootblocks?  The old bootblocks can't load a kernel greater
than 640K, and kernels built with DDB can be larger than 640K sometimes ...