Metoo. I couldn't grab the screen output yet, but AFAICS the trace looks the same as in Don's EMail. I could reproduce this on 2 machines. Both work fine with 4.2 (amd64).
Hardware is a Tyan Tomcat H1000S main board, Dual-Core Opteron (1.8 GHz), 2 GByte RAM. I could reproduce it with /bsd and /bsd.mp . Both are unmodified, of course. /bsd.rd seems to work. Regards Harri