groff/troff burning CPU (spinning?) after upgrade

[Wilkinson,Alex]

>From this output, how does one tell that buildworld is actually hanging ?

 - aW

	:My buildworld's are now hanging with the following:
	:
	:cboss:/data/stock/src> ps auxwww -p 11440
	:USER      PID %CPU %MEM   VSZ  RSS  TT  STAT STARTED      TIME COMMAND
	:rwatson 11440 45.0  0.3  2420 1728  ??  R     5:01PM  48:38.08 troff
	:-mtty-char -ms -o1- -Tascii
	:/data/stock/src/share/doc/papers/beyond4.3/beyond43.ms
	:cboss:/data/stock/src> ps auxwww -p 24920
	:USER      PID %CPU %MEM   VSZ  RSS  TT  STAT STARTED      TIME COMMAND
	:rwatson 24920 45.4  0.3  2420 1728  ??  R     5:36PM  45:26.15 troff
	:-mtty-char -ms -o1- -Tascii