id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
3978	ghc error while compiling Data.Vector.Algoriths.Intro	dubhrosa		"I installed the haskell platform afresh on my Ubuntu 9.10 system, following the instructions for doing so from the haskell.org site, everything with the platform appears to work fine. I tried installing the criterion package and got the error message shown below from ghc.
{{{
 cabal install criterion
Resolving dependencies...
Configuring vector-algorithms-0.3...
Preprocessing library vector-algorithms-0.3...
Building vector-algorithms-0.3...
[1 of 9] Compiling Data.Vector.Algorithms.Common ( Data/Vector/Algorithms/Common.hs, dist/build/Data/Vector/Algorithms/Common.o )
[2 of 9] Compiling Data.Vector.Algorithms.Search ( Data/Vector/Algorithms/Search.hs, dist/build/Data/Vector/Algorithms/Search.o )
[3 of 9] Compiling Data.Vector.Algorithms.Radix ( Data/Vector/Algorithms/Radix.hs, dist/build/Data/Vector/Algorithms/Radix.o )
[4 of 9] Compiling Data.Vector.Algorithms.Optimal ( Data/Vector/Algorithms/Optimal.hs, dist/build/Data/Vector/Algorithms/Optimal.o )
[5 of 9] Compiling Data.Vector.Algorithms.Insertion ( Data/Vector/Algorithms/Insertion.hs, dist/build/Data/Vector/Algorithms/Insertion.o )
[6 of 9] Compiling Data.Vector.Algorithms.Merge ( Data/Vector/Algorithms/Merge.hs, dist/build/Data/Vector/Algorithms/Merge.o )
[7 of 9] Compiling Data.Vector.Algorithms.TriHeap ( Data/Vector/Algorithms/TriHeap.hs, dist/build/Data/Vector/Algorithms/TriHeap.o )
[8 of 9] Compiling Data.Vector.Algorithms.Intro ( Data/Vector/Algorithms/Intro.hs, dist/build/Data/Vector/Algorithms/Intro.o )
ghc: panic! (the 'impossible' happened)
  (GHC version 6.10.4 for i386-unknown-linux):
	idInfo co{v a9WB} [tv]

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

cabal: Error: some packages failed to install:
criterion-0.5.0.0 depends on vector-algorithms-0.3 which failed to install.
statistics-0.5.1.0 depends on vector-algorithms-0.3 which failed to install.
vector-algorithms-0.3 failed during the building phase. The exception was:
exit: ExitFailure 1
}}}
"	bug	closed	high	6.12.3	Compiler	6.10.4	wontfix			Linux	x86	Compile-time crash