ghc-stage2: Monadic.o: bus error / segmentation fault / internal error

Vanilla build of HEAD with a virgin repository on MacOS X 10.6.5 (MacBook Pro; Core 2 Duo CPU; 8GB RAM; kernel running in 64-bit mode) failed:

"inplace/bin/ghc-stage2"   -H32m -O    -package-name vector-0.7.0.1 -hide-all-packages -i -ilibraries/vector/. -ilibraries/vector/dist-install/build -ilibraries/vector/dist-install/build/autogen -Ilibraries/vector/dist-install/build -Ilibraries/vector/dist-install/build/autogen -Ilibraries/vector/include -Ilibraries/vector/internal   -optP-DVECTOR_BOUNDS_CHECKS -optP-include -optPlibraries/vector/dist-install/build/autogen/cabal_macros.h -package base-4.3.0.0 -package primitive-0.3.1  -O2 -XCPP -XDeriveDataTypeable -no-user-package-conf -rtsopts -O2 -XGenerics     -odir libraries/vector/dist-install/build -hidir libraries/vector/dist-install/build -stubdir libraries/vector/dist-install/build -hisuf hi -osuf  o -hcsuf hc -c libraries/vector/./Data/Vector/Fusion/Stream/Monadic.hs -o libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.o
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package primitive-0.3.1 ... linking ... done.
Loading package ffi-1.0 ... linking ... done.
make[1]: *** [libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.o] Bus error
make: *** [all] Error 2

Configure Summary:

Configure completed successfully.

   Building GHC version  : 7.1.20101127

   Build platform        : i386-apple-darwin
   Host platform         : i386-apple-darwin
   Target platform       : i386-apple-darwin

   Bootstrapping using   : /usr/bin/ghc
      which is version   : 7.0.0.20100924

   Using GCC             : /usr/bin/gcc
      which is version   : 4.2.1

   ld       : /usr/bin/ld
   Happy    : /usr/local/bin/happy (1.18.5)
   Alex     : /usr/local/bin/alex (2.3.3)
   Python   : /usr/bin/python
   Perl     : /usr/bin/perl
   dblatex  : /usr/local/bin/dblatex
   xsltproc : /usr/bin/xsltproc
   HsColour : /Users/wknop/.cabal/bin/HsColour

   Building DocBook HTML documentation : YES
   Building DocBook PS documentation   : YES
   Building DocBook PDF documentation  : YES

Trac metadata

Trac field	Value
Version	7.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC	altaic
Operating system
Architecture