http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54487
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2012-09-05 15:41:18 UTC --- Also happens with revision 190982 on Fedora 18/x86-64. I configured GCC with --prefix=/usr/local --enable-clocale=gnu --with-system-zlib --enable-shared --with-demangler-in-ld --with-build-config=bootstrap-lto --with-fpmath=sse --enable-languages=c,c++,fortran,java,lto,objc and used make -j8 profiledbootstrap on a 8-core machine.