diff -r cc75c76972ee -r c0432d11811c src/network/kernel/qhostinfo.cpp
--- a/src/network/kernel/qhostinfo.cpp	Wed Apr 21 12:15:23 2010 +0300
+++ b/src/network/kernel/qhostinfo.cpp	Wed Apr 21 20:15:53 2010 +0300
@@ -551,13 +551,11 @@
                 }
             }
 
-            if (scheduled && threadPool.tryStart(scheduled)) {
+            if (scheduled && currentLookups.size() < threadPool.maxThreadCount()) {
                 // runnable now running in new thread, track this in currentLookups
+                threadPool.start(scheduled);
                 iterator.remove();
                 currentLookups.append(scheduled);
-            } else if (scheduled) {
-                // wanted to start, but could not because thread pool is busy
-                break;
             } else {
                 // was postponed, continue iterating
                 continue;