Hello everyone I compiled my application with the ``-g '' options and when debug with gdb, i can list the source file The problem is : when segmentation fault ,there has no core file if the has a core file ,i can debug it, but there has no core file why? how can i let the OS create core file when segmentation fault Any comments would be much appreciated , thanks in advance _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list