My linux X Windows app won't dump the core on signal 11 if the application is brought up using a shell script set to respawn in the inittab file. This script calls xinit which in turn executes .xinitrc which brings up the application. In order to run from inittab, permissions are set to 4555 on the executable. If I run the application from command line in an xterm, the core will get dumped on signal 11? Interesting note: core will dump on signal 11 with same application running on SCO Open Server (from inittab or xterm)?