こちらもマネしてgdbの結果を貼ります。 fuyuさんの環境では再現できそうに無い、GTK+ 2.6、Glib 2.6の時の書き込みウインドウがらみだけ。 Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 1087525344 (LWP 19325)] 0x080b82b1 in Ochusha::ResponseEditor::remember_current_entries () (gdb) bt #0 0x080b82b1 in Ochusha::ResponseEditor::remember_current_entries () #1 0x080baabc in Ochusha::ResponseEditor::set_thread () #2 0x080bac56 in Ochusha::ResponseEditorWindow::set_thread () #3 0x080bb0f7 in Ochusha::ResponseEditorWindow::ResponseEditorWindow () #4 0x0808fd6d in Ochusha::BBSThreadView::show_post_window () #5 0x406242a6 in g_cclosure_marshal_VOID__VOID () from /usr/lib/libgobject-2.0.so.0 #6 0x40612736 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #7 0x40623dcf in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0 #8 0x40622e9c in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #9 0x40623126 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #10 0x40270d53 in _gtk_action_emit_activate () from /usr/lib/libgtk-x11-2.0.so.0 #11 0x40270ddb in gtk_action_activate () from /usr/lib/libgtk-x11-2.0.so.0 #12 0x406242a6 in g_cclosure_marshal_VOID__VOID () from /usr/lib/libgobject-2.0.so.0 #13 0x40612736 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #14 0x40623dcf in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0 #15 0x40622e9c in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #16 0x40623216 in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0 #17 0x403ea299 in gtk_tool_button_get_type () from /usr/lib/libgtk-x11-2.0.so.0 #18 0x406242a6 in g_cclosure_marshal_VOID__VOID () from /usr/lib/libgobject-2.0.so.0 #19 0x40612736 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0