diff -uNr a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
--- a/net/ipv4/ipmr.c	2012-06-01 15:16:13.000000000 +0800
+++ b/net/ipv4/ipmr.c	2013-04-28 10:52:05.000000000 +0800
@@ -982,7 +982,7 @@
 	if (!found) {
 		/* Create a new entry if allowable */
 
-		if (atomic_read(&mrt->cache_resolve_queue_len) >= 10 ||
+		if (atomic_read(&mrt->cache_resolve_queue_len) >= sysctl_igmp_max_memberships ||
 		    (c = ipmr_cache_alloc_unres()) == NULL) {
 			spin_unlock_bh(&mfc_unres_lock);