diff -ruN samba-3.5.0rc3.orig/source3/winbindd/winbindd_dual.c samba-3.5.0rc3/source3/winbindd/winbindd_dual.c
--- samba-3.5.0rc3.orig/source3/winbindd/winbindd_dual.c	2010-02-19 14:32:33.000000000 +0100
+++ samba-3.5.0rc3/source3/winbindd/winbindd_dual.c	2010-02-26 09:54:00.000000000 +0100
@@ -1443,6 +1443,9 @@
 		int iov_count;
 		NTSTATUS status;
 
+		t.tv_sec = 9999;
+		t.tv_usec = 0;
+
 		if (run_events(winbind_event_context(), 0, NULL, NULL)) {
 			TALLOC_FREE(frame);
 			continue;