From d3cb659541c7f5b0a0c9910e8f8c6b030c5f43f8 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Tue, 17 Nov 2015 09:37:50 -0500
Subject: [PATCH] Fix a server-side crash on DNS init

---
 src/or/main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/or/main.c b/src/or/main.c
index b63b81eb7e..db6d726306 100644
--- a/src/or/main.c
+++ b/src/or/main.c
@@ -2201,8 +2201,10 @@ dns_servers_relaunch_checks(void)
 {
   if (server_mode(get_options())) {
     dns_reset_correctness_checks();
-    tor_assert(check_dns_honesty_event);
-    periodic_event_reschedule(check_dns_honesty_event);
+    if (periodic_events_initialized) {
+      tor_assert(check_dns_honesty_event);
+      periodic_event_reschedule(check_dns_honesty_event);
+    }
   }
 }