Hi Jim, Jim Meyering <jim at meyering.net> writes: > $ valgrind ./a.out >& k > zsh: segmentation fault (core dumped) valgrind ./a.out >&k > [Exit 139 (SEGV)] Fortunately there’s now a workaround, see: http://lists.gnu.org/archive/html/guile-devel/2010-11/msg00037.html Hope this helps, Ludo’.