id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
4330	Weird runtime Crash	nomeata		"I’m sure you like such summaries... but I could not do any better.

In the attached tarball is some code and a test.sh that can be used to show the bug. I tried to further reduce the size of the test case, but I’m in a position where any of numerous seemingly independent changes would cause the crash to not happen, including removing an unused binding of the form ""blubb <- return undefined"", merging two Modules, removing unused imports or removing unused definitions.

Also disabling -O2 or -prof hides the patch.

I have attached my attempts to reduce the size of the testcase as a patch. Some code positions that can trigger or untrigger the bug are marked."	bug	closed	high	7.0.1	Runtime System	6.12.1	fixed		leuschner@…	Linux	x86_64 (amd64)	Runtime crash