PSPP-BUG: [bug #30689] GUI crashes after a syntax error.

[Ben Pfaff]

Follow-up Comment #2, bug #30689 (project pspp):

valgrind shows the following


==7289== Invalid read of size 4
==7289==    at 0x4B71B2E: datasheet_delete_columns (datasheet.c:392)
==7289==    by 0x8072096: delete_variable_callback
(psppire-data-store.c:312)
==7289==    by 0x7394141: g_closure_invoke (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73AA62C: ??? (in /usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73ABC03: g_signal_emit_valist (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73AC085: g_signal_emit (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x8075486: delcb (psppire-dict.c:252)
==7289==    by 0x4B7519E: dict_delete_var (dictionary.c:627)
==7289==    by 0x4B75D05: dict_clear (dictionary.c:256)
==7289==    by 0x4B7DFAB: proc_discard_active_file (procedure.c:642)
==7289==    by 0x4A93FDC: cmd_new_file (command.c:784)
==7289==    by 0x4A94DDF: cmd_parse_in_state (command.c:219)
==7289==    by 0x4A95447: cmd_parse (command.c:150)
==7289==    by 0x8066E18: execute_syntax (executor.c:80)
==7289==    by 0x807B283: on_run_all (psppire-syntax-window.c:352)
==7289==    by 0x73A1CBB: g_cclosure_marshal_VOID__VOID (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x7394141: g_closure_invoke (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73AA62C: ??? (in /usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73ABC03: g_signal_emit_valist (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73AC085: g_signal_emit (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x6F5EB64: ??? (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x6F60C6C: gtk_action_activate (in
/usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x73A1CBB: g_cclosure_marshal_VOID__VOID (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73927A8: ??? (in /usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x7394141: g_closure_invoke (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73A9EC9: ??? (in /usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73ABC03: g_signal_emit_valist (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73AC085: g_signal_emit (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x7166F74: gtk_widget_activate (in
/usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x704639F: gtk_menu_shell_activate_item (in
/usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x7047E6E: ??? (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x703D663: ??? (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x7036E23: ??? (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x73927A8: ??? (in /usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x7394141: g_closure_invoke (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73AA275: ??? (in /usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73ABA82: g_signal_emit_valist (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73AC085: g_signal_emit (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x71631C5: ??? (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x702F47C: gtk_propagate_event (in
/usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x7030806: gtk_main_do_event (in
/usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x4C31DD9: ??? (in /usr/lib/libgdk-x11-2.0.so.0.2000.1)
==7289==    by 0x74022F4: g_main_context_dispatch (in
/lib/libglib-2.0.so.0.2400.1)
==7289==    by 0x7405FD7: ??? (in /lib/libglib-2.0.so.0.2400.1)
==7289==    by 0x7406516: g_main_loop_run (in /lib/libglib-2.0.so.0.2400.1)
==7289==    by 0x7030DC8: gtk_main (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x806B03A: run_inner_loop (main.c:219)
==7289==    by 0x7030F30: gtk_main (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x806AFB4: main (main.c:295)
==7289==  Address 0xfafdf70 is 0 bytes after a block of size 16 alloc'd
==7289==    at 0x48F2F50: malloc (vg_replace_malloc.c:236)
==7289==    by 0x4BBB2A1: xmalloc (xmalloc.c:45)
==7289==    by 0x4B71E91: datasheet_create (xalloc.h:126)
==7289==    by 0x80714F4: psppire_data_store_set_reader
(psppire-data-store.c:438)
==7289==    by 0x8066EE8: execute_syntax (executor.c:103)
==7289==    by 0x807B283: on_run_all (psppire-syntax-window.c:352)
==7289==    by 0x73A1CBB: g_cclosure_marshal_VOID__VOID (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x7394141: g_closure_invoke (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73AA62C: ??? (in /usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73ABC03: g_signal_emit_valist (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73AC085: g_signal_emit (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x6F5EB64: ??? (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x6F60C6C: gtk_action_activate (in
/usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x73A1CBB: g_cclosure_marshal_VOID__VOID (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73927A8: ??? (in /usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x7394141: g_closure_invoke (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73A9EC9: ??? (in /usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73ABC03: g_signal_emit_valist (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73AC085: g_signal_emit (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x7166F74: gtk_widget_activate (in
/usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x704639F: gtk_menu_shell_activate_item (in
/usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x7047E6E: ??? (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x703D663: ??? (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x7036E23: ??? (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x73927A8: ??? (in /usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x7394141: g_closure_invoke (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73AA275: ??? (in /usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73ABA82: g_signal_emit_valist (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x73AC085: g_signal_emit (in
/usr/lib/libgobject-2.0.so.0.2400.1)
==7289==    by 0x71631C5: ??? (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x702F47C: gtk_propagate_event (in
/usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x7030806: gtk_main_do_event (in
/usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x4C31DD9: ??? (in /usr/lib/libgdk-x11-2.0.so.0.2000.1)
==7289==    by 0x74022F4: g_main_context_dispatch (in
/lib/libglib-2.0.so.0.2400.1)
==7289==    by 0x7405FD7: ??? (in /lib/libglib-2.0.so.0.2400.1)
==7289==    by 0x7406516: g_main_loop_run (in /lib/libglib-2.0.so.0.2400.1)
==7289==    by 0x7030DC8: gtk_main (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x806B03A: run_inner_loop (main.c:219)
==7289==    by 0x7030F30: gtk_main (in /usr/lib/libgtk-x11-2.0.so.0.2000.1)
==7289==    by 0x806AFB4: main (main.c:295)


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