Squid-2.2.STABLE4: Higher helper limit to avoid dns queue assertion
    Allow for a larger backlog of requests to helper processes such as
    dnsserver. Squid will abort with a assertion failure if the backlog grows
    to large. This patch changes the limit from 2*n_helpers to 5*n_helpers

Index: squid/src/helper.c
diff -u squid/src/helper.c:1.1.1.6 squid/src/helper.c:1.1.1.6.2.1
--- squid/src/helper.c:1.1.1.6	Tue Jul 13 00:09:28 1999
+++ squid/src/helper.c	Sun Aug  1 18:13:01 1999
@@ -307,7 +307,7 @@
     hlp->last_queue_warn = squid_curtime;
     debug(14, 0) ("WARNING: All %s processes are busy.\n", hlp->id_name);
     debug(14, 0) ("WARNING: %d pending requests queued\n", hlp->stats.queue_size);
-    if (hlp->stats.queue_size > hlp->n_running * 2)
+    if (hlp->stats.queue_size > hlp->n_running * 5)
 	fatalf("Too many queued %s requests", hlp->id_name);
     debug(14, 1) ("Consider increasing the number of %s processes in your config file.\n", hlp->id_name);
 }