src/os_cpu/bsd_x86/vm/thread_bsd_x86.hpp

@@ -30,16 +30,12 @@
     _anchor.clear();
   }
 
   frame pd_last_frame() {
     assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
-    if (_anchor.last_Java_pc() != NULL) {
+    vmassert(_anchor.last_Java_pc() != NULL, "not walkable");
       return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp(), _anchor.last_Java_pc());
-    } else {
-      // This will pick up pc from sp
-      return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp());
-    }
   }
 
  public:
   // Mutators are highly dangerous....
   intptr_t* last_Java_fp()                       { return _anchor.last_Java_fp(); }