Wed, 16 Oct 2013 18:48:37 +0200 wenzelm clarified workaround: problem is potential blocking of vacuous input (see also Poly/ML SVN 1874);
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 tip