The Seg fault on zone seems like the player packet size problem around while back. There were several threads posted on it.

I think Ratt left the fix that has been posted on this board out of the CVS because of the way the fix was implemented. Hunt around the dev boards for the seg fault when zoning threads and see if you can find the correted player packet post.

I dont think its a 100% corrected yet but it may clear up the crash issue you are seeing.