Kernel patch to disable nf_conntrack hash resize

nf_conntrack_no_hash_resize_preempt-3.16_3.16.43-2.patch

--- a/net/netfilter/nf_conntrack_core.c	2017-04-04 21:21:58.000000000 +0000
+++ b/net/netfilter/nf_conntrack_core.c	2017-07-30 18:23:52.951182000 +0000
@@ -1611,6 +1611,12 @@
 	struct nf_conntrack_tuple_hash *h;
 	struct nf_conn *ct;

+#ifdef CONFIG_PREEMPT
+        /* Setting hashsize with PREEMPT kernel is not supported. */
+        printk("WARN: nf_conntrack_set_hashsize: not supported with PREEMPT kernel, skipping resize request to: %s", val);
+        return 0;
+#endif
+
 	if (current->nsproxy->net_ns != &init_net)
 		return -EOPNOTSUPP;