diff -up qt-everywhere-opensource-src-4.8.0/src/corelib/arch/qatomic_s390.h.s390-atomic qt-everywhere-opensource-src-4.8.0/src/corelib/arch/qatomic_s390.h
--- qt-everywhere-opensource-src-4.8.0/src/corelib/arch/qatomic_s390.h.s390-atomic	2011-12-18 16:15:20.000000000 +0100
+++ qt-everywhere-opensource-src-4.8.0/src/corelib/arch/qatomic_s390.h	2011-12-18 16:17:34.000000000 +0100
@@ -400,6 +400,16 @@ Q_INLINE_TEMPLATE T* QBasicAtomicPointer
 
 
 template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
+{
+#ifndef __s390x__
+    return (T *)__CS_OLD_LOOP(&_q_value, valueToAdd * sizeof(T), "ar", "", "bcr 15,0\n");
+#else
+    return (T *)__CSG_OLD_LOOP(&_q_value, valueToAdd * sizeof(T), "agr", "", "bcr 15,0\n");
+#endif
+}
+
+template <typename T>
 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
 {
     return fetchAndAddOrdered(valueToAdd);