--- xfce4-session-4.3.90.2.orig/xfce4-session/main.c
+++ xfce4-session-4.3.90.2/xfce4-session/main.c
@@ -222,6 +222,14 @@
 }
 
 
+static void
+reap_children (int sig)
+{
+  wait (&sig);
+  signal (SIGCHLD, reap_children);
+}
+
+
 int
 main (int argc, char **argv)
 {
@@ -232,6 +240,7 @@
   
   /* stupid, damn f*ck*ng stupid linux! */
   signal (SIGPIPE, SIG_IGN);
+  signal (SIGCHLD, reap_children);
 
   gtk_init (&argc, &argv);