Index: /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceControlProcess.cpp
===================================================================
--- /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceControlProcess.cpp	(revision 51204)
+++ /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceControlProcess.cpp	(revision 51205)
@@ -525,4 +525,6 @@
                                      pProcess->uPID, PROC_STS_STARTED, 0 /* u32Flags */,
                                      NULL /* pvData */, 0 /* cbData */);
+    if (rc == VERR_INTERRUPTED)
+        rc = VINF_SUCCESS; /* SIGCHLD send by quick childs! */
     if (RT_FAILURE(rc))
         VBoxServiceError("[PID %RU32]: Error reporting starting status to host, rc=%Rrc\n",