From 4c02c20c32d8b4e1948a67a0bc069e8ead49a701 Mon Sep 17 00:00:00 2001
From: Gleb Smirnoff <glebius@FreeBSD.org>
Date: Wed, 5 Feb 2020 02:53:40 +0000
Subject: [PATCH] netgraph(4) callouts need to be executed in the network
 epoch.

---
 sys/netgraph/ng_base.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/netgraph/ng_base.c b/sys/netgraph/ng_base.c
index 698696f1340..a009c33d09c 100644
--- a/sys/netgraph/ng_base.c
+++ b/sys/netgraph/ng_base.c
@@ -3772,11 +3772,14 @@ ng_send_fn2(node_p node, hook_p hook, item_p pitem, ng_item_fn2 *fn, void *arg1,
 static void
 ng_callout_trampoline(void *arg)
 {
+	struct epoch_tracker et;
 	item_p item = arg;
 
+	NET_EPOCH_ENTER(et);
 	CURVNET_SET(NGI_NODE(item)->nd_vnet);
 	ng_snd_item(item, 0);
 	CURVNET_RESTORE();
+	NET_EPOCH_EXIT(et);
 }
 
 int