#9555: internal error: ARR_WORDS object entered! -------------------------------------+------------------------------------- Reporter: walck | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Resolution: | Keywords: Operating System: | Architecture: x86_64 (amd64) Unknown/Multiple | Difficulty: Unknown Type of failure: | Blocked By: None/Unknown | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by slyfox): I've managed to reproduce it! I think the problem arises due to '''arithmoi''' being alone package built with ghc -fllvm. It should not break, but llvm is a bit experimental target (maybe upgrading '''llvm''' version will help, dunno). To workaround it you can buiild arithmoi w/o llvm flag: {{{ cabal install cyclotomic arithmoi -f-llvm --reinstall }}} The steps to reproduce: {{{ # get saucy mkdir saucy debootstrap saucy saucy/ https://mirrors.kernel.org/ubuntu/ chroot saucy/ echo 'deb http://archive.ubuntu.com/ubuntu saucy main universe' > /etc/apt/sources.list apt-get update apt-get install ghc cabal-install ncurses-dev build-essential llvm # unpack ghc, ./configure && make # get latest cabal cabal update cabal install cabal-install # get arithmoi ~/.cabal/bin/cabal install --with-compiler=$(pwd)/inplace/bin/ghc- stage2 cyclotomic # reproduce root@sf:~/ghc-7.8.3# inplace/bin/ghc-stage2 -e 'Data.Complex.Cyclotomic.goldenRatio' <interactive>: internal error: ARR_WORDS object entered! (GHC version 7.8.3 for x86_64_unknown_linux) Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug Aborted }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9555#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler