       | &lt;---+ Second node
   |       +---&gt; |                              |
   |       |     +------------------------------+
   |       |     |  Forward pointer             | ----+
   |       |     +------------------------------+     |
   |       |     |  Rest of DLA Descriptor 2    |     |
   |       |     +------------------------------+     |
   |       |     |  Segment 2 integer component |     |
   |       |     +------------------------------+     |
   |  pointer from third node              