--- a/src/corelib/xml/qxmlstream.g	Fri May 14 16:40:13 2010 +0300
+++ b/src/corelib/xml/qxmlstream.g	Thu May 27 13:40:48 2010 +0300
@@ -748,7 +748,7 @@
             state_stack[tos] = 0;
             return true;
         } else if (act > 0) {
-            if (++tos == stack_size)
+            if (++tos == stack_size-1)
                 reallocateStack();
 
             Value &val = sym_stack[tos];