id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
5891	"""createDirectory: already exists"" error with parallel build"	akio	simonmar	When I invoke multiple instances of GHC in parallel, I sometimes get an error: <path>: createDirectory: already exists (File exists). The attached script demonstrates this.	bug	closed	high	7.4.2	Compiler	7.4.1	fixed		conrad@… rrnewton@…	Linux	Unknown/Multiple	Compile-time crash	Unknown