This PR is titled "Silly NFS mbuf code caused corruption of malloc's 
freelist" and if it were once true, I'll bet it's long since fixed. 
However, it would be nice if someone familiar with the mbuf code 
could take a look/see and confirm...

http://www.NetBSD.org/cgi-bin/query-pr-single.pl?number=1327

	thanks,

	Erik <fair@clock.org>