diff --git a/src_main/containers/pideque.h b/src_main/containers/pideque.h
index 6f0ff358..ecb3f502 100755
--- a/src_main/containers/pideque.h
+++ b/src_main/containers/pideque.h
@@ -452,6 +452,7 @@ private:
 				//printf("(%p) realloc %d -> %d (%p)\n", this, pid_rsize, as, pid_data);
 				PIINTROSPECTION_CONTAINER_ALLOC((as-pid_rsize)*sizeof(T))
 				T * p_d = (T*)(realloc((void*)(pid_data), as*sizeof(T)));
+				if(!p_d) printf("(%p) realloc (%d)%d -> %d (%p)\n", this, pid_start, pid_rsize, (int)as*sizeof(T), pid_data);
 				assert(p_d);
 				pid_data = p_d;
 				pid_rsize = as;