id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
4349	ASSERT failed! file compiler/types/FamInstEnv.lhs	daniel.is.fischer		"Building the current HEAD (darcs pull -a; ./darcs-all pull -a today) failed with the error
{{{
""inplace/bin/ghc-stage2""   -H32m -O -fasm [...snip...]
 -c libraries/vector/./Data/Vector/Unboxed.hs
 -o libraries/vector/dist-install/build/Data/Vector/Unboxed.o
ghc-stage2: panic! (the 'impossible' happened)
  (GHC version 7.1.20100928 for i386-unknown-linux):
        ASSERT failed! file compiler/types/FamInstEnv.lhs, line 321

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
}}}
Before that it spat out a lot of warnings."	bug	closed	normal		Compiler	7.1	fixed			Linux	x86	Building GHC failed