+/** Map a given SMPI privatization segment (make a SMPI process active)
+ * even if SMPI thinks it is already active
+ *
+ * When doing a state restoration, the state of the restored variables
+ * might not be consistent with the state of the virtual memory.
+ * In this case, we to change the data segment.
+ */
+void smpi_really_switch_data_segment(int dest) {