I found out how to get a core cump here's the c-backtrace (gdb) where #0 0x404a9561 in kill () from /lib/libc.so.6 #1 0x080acae9 in fatal_error_signal (sig=11) at emacs.c:3424 #2 0x404a9498 in __libc_sigaction () from /lib/libc.so.6 #3 0x40236013 in gtk_signal_set_funcs () from /usr/lib/libgtk-1.2.so.0 #4 0x402340b3 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0 #5 0x4026ab0b in gtk_widget_event () from /usr/lib/libgtk-1.2.so.0 #6 0x40206d95 in gtk_propagate_event () from /usr/lib/libgtk-1.2.so.0 #7 0x40205efe in gtk_main_do_event () from /usr/lib/libgtk-1.2.so.0 #8 0x402b54d7 in gdk_wm_protocols_filter () from /usr/lib/libgdk-1.2.so.0 #9 0x402e44c8 in g_get_current_time () from /usr/lib/libglib-1.2.so.0 #10 0x402e4ad3 in g_get_current_time () from /usr/lib/libglib-1.2.so.0 #11 0x402e4b85 in g_main_iteration () from /usr/lib/libglib-1.2.so.0 #12 0x40205a5a in gtk_main_iteration () from /usr/lib/libgtk-1.2.so.0 #13 0x08108475 in emacs_gtk_next_event (emacs_event=0x402e539c) at event-gtk.c:1173 #14 0x080bb196 in event_stream_next_event (event=0x848efc4) at event-stream.c:586 #15 0x080bcdb0 in next_event_internal (target_event=138997700, allow_queued=1) at event-stream.c:2193 #16 0x080bd497 in Fnext_event (event=138997700, prompt=1086108356) at event-stream.c:2426 #17 0x08096c18 in Fcommand_loop_1 () at cmdloop.c:581 #18 0x080af35c in condition_case_1 (handlers=1086106220, ---Type <return> to continue, or q <return> to quit--- bfun=0x8096af0 <command_loop_1>, barg=1086108356, hfun=0x80967a0 <cmd_error>, harg=1086108356) at eval.c:1865 #19 0x08096899 in command_loop_3 () at cmdloop.c:264 #20 0x080968ba in command_loop_2 (dummy=1086108356) at cmdloop.c:275 #21 0x080aef9e in internal_catch (tag=0, func=0x80968b0 <command_loop_2>, arg=1086108356, threw=0x0, thrown_tag=0x0) at eval.c:1488 #22 0x08096983 in initial_command_loop (load_me=0) at cmdloop.c:313 #23 0x080ab3f1 in xemacs_21_5_b9_i386_debian_linux (argc=1, argv=0xbffff6e4, envp=0xbffff6ec, restart=0) at emacs.c:2345 #24 0x080ac509 in main (argc=0, argv=0x0, envp=0x0) at emacs.c:2783 (gdb) Regards Friedrich