On Sat, Nov 23, 2013 at 04:27:34PM +0100, Ludovic Court??s wrote: Could you do: ulimit -c unlimited rm -f guix/scripts/build.go make guix/scripts/build.go and then, assuming it segfaulted again: gdb $(which guile) core (gdb) bt full Backtrace is attached. What does ???guile --version??? say? guile (GNU Guile) 2.0.5-deb+1-3 Also, the problem appears to be related to lack of space in /tmp -- PGP Public key ID: 1024D/2DE827B3 fingerprint = 8797 A26D 0854 2EAB 0285 A290 8A67 719C 2DE8 27B3 See http://sks-keyservers.net or any PGP keyserver for public key.