id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,os,architecture,failure,difficulty,testcase,blockedby,blocking,related
3435,ghc-stage2 panic while compiling ghc-paths-0.1.0.5,jsch,simonmar,"Compilation of ghc-paths-0.1.0.5 with ghc-6.11.20090816 (darcs checkout) fails:

{{{
jsch@lafleur:~/Desktop/ghc-paths-0.1.0.5$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 6.11.20090816

jsch@lafleur:~/Desktop/ghc-paths-0.1.0.5$ cabal --version
cabal-install version 0.6.2
using version 1.6.0.3 of the Cabal library

jsch@lafleur:~/Desktop/ghc-paths-0.1.0.5$ cabal configure --user
Resolving dependencies...
Configuring ghc-paths-0.1.0.5...

jsch@lafleur:~/Desktop/ghc-paths-0.1.0.5$ cabal build
Preprocessing library ghc-paths-0.1.0.5...
Building ghc-paths-0.1.0.5...
ghc-stage2: panic! (the 'impossible' happened)
  (GHC version 6.11.20090816 for i386-unknown-linux):
        Prelude.chr: bad argument: (-939524096)

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

To compile ghc-paths-0.1.0.5 I replaced the Cabal library first (Setup.hs fails with 1.7.3):

{{{
jsch@lafleur:~/Desktop/ghc-paths-0.1.0.5$ ghc-pkg list
/home/jsch/stow/ghc-darcs/lib/ghc-6.11.20090816/package.conf:
    (Cabal-1.7.3), array-0.2.0.1, base-3.0.3.0, base-4.1.0.0,
    bytestring-0.9.1.4, containers-0.2.0.1, directory-1.0.0.2,
    (dph-base-0.4.0), (dph-par-0.4.0), (dph-prim-interface-0.4.0),
    (dph-prim-par-0.4.0), (dph-prim-seq-0.4.0), (dph-seq-0.4.0),
    extensible-exceptions-0.1.1.0, ffi-1.0, filepath-1.1.0.1,
    ghc-6.11.20090816, ghc-prim-0.1.0.0, haskeline-0.6.2,
    haskell98-1.0.1.0, hpc-0.5.0.2, integer-gmp-0.1.0.0, mtl-1.1.0.2,
    old-locale-1.0.0.1, old-time-1.0.0.1, pretty-1.0.1.0,
    process-1.0.1.1, random-1.0.0.1, rts-1.0, syb-0.1.0.0,
    template-haskell-2.4.0.0, terminfo-0.3.1, time-1.1.4, unix-2.3.1.0,
    utf8-string-0.3.4
/home/jsch/.ghc/i386-linux-6.11.20090816/package.conf:
    Cabal-1.6.0.2
}}}

I have since updated my checkout (to 20090817) and will update this ticket as soon as I know if the problem persists.",bug,closed,high,6.12.1,Compiler,6.11,fixed,,,Linux,x86,,Unknown,,,,