I am using CentOS 4 GNU gdb Red Hat Linux (6.3.0.0-1.63rh) GNU DDD 3.3.9 (x86_64-redhat-linux-gnu) I bring up ddd on a program compiled -g and type: list function_name gdb seg faults. If I bring up ddd on gdb and then run gdb with the same program an type list function_name everything works just fine.