1 files changed, 6 insertions, 0 deletions
diff --git a/src/corelib/thread/qthread.cpp b/src/corelib/thread/qthread.cpp
index 02a63bb92d..5dfc946b5b 100644
--- a/src/corelib/thread/qthread.cpp
+++ b/src/corelib/thread/qthread.cpp
@@ -434,6 +434,12 @@ bool QThread::isRunning() const
 {
     Q_D(const QThread);
     QMutexLocker locker(&d->mutex);
+#ifdef Q_OS_SYMBIAN
+    // app shutdown on Symbian can terminate threads and invalidate their stacks without notification,
+    // check the thread is still alive.
+    if (d->data->symbian_thread_handle.Handle() && d->data->symbian_thread_handle.ExitType() != EExitPending)
+        return false;
+#endif
     return d->running;
 }