> 
> Has the kernel gone through any changes recently (a couple of days
> ago) that would explain why savecore coredumps with a "Segmentatin
> Fault" under a Nov 4 kernel?
I don't know of any. But maybe /netbsd is not the same as the running
kernel?
> 
> I'm running NetBSD/Atari.
Currently, NetBSD/Atari does not support saving of the panic-dumps. I
have a new savecore/libkvm package waiting but it won't be present in
the 1.1 release. The current savecore cannot work on the Atari because
it makes the wrong assumptions about the kernel address space. It assumes
that the kernel uses VA = PA, which is mostly untrue on the Atari.
The revised savecore uses the kvm-library for it's dump-access. This allows
hiding the kernel internals from the user program.

Leo.