id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
2185	Memory leak with parMap	igloo	simonmar	"With the attached `All.hs`, if you run the program without any arguments (so that it uses `parMap rnf` in `gen_blocks_list`) then its memory usage keeps going up, even though at the top level it's just running the same computation 5 times in a row. Memory usage goes up to over 100M.

If you give an argument (any argument, so that it uses `map` instead) then memory usage is constant and only a few megs.

Happens in 6.8.2 and the HEAD.
"	bug	closed	high	7.0.1	Runtime System	6.8.2	fixed			Unknown/Multiple	Unknown/Multiple	Runtime performance bug	Moderate (less than a day)