title: How to debug a segmentation fault while the gdb stack trace is full of '??'?
body: <p>My executable contains symbol table. But it seems that the stack trace is overwrited.</p>
  
  <p>How to get more information out of that core please? For instance, is there a way to inspect the heap ? See the objects instances populating the heap to get some clues. Whatever, any idea is appreciated.</p>