From 1d856c8ddd8356b33e0d1404e40d7df1a0d8bcf7 Mon Sep 17 00:00:00 2001
From: Otto Moerbeek <otto.moerbeek@open-xchange.com>
Date: Mon, 8 Sep 2025 11:47:17 +0200
Subject: [PATCH] rec: some error paths do no create thread 0 so don't join it

Signed-off-by: Otto Moerbeek <otto.moerbeek@open-xchange.com>
---
 pdns/recursordist/rec-main.hh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pdns/recursordist/rec-main.hh b/pdns/recursordist/rec-main.hh
index 49576ee7b..90f61f084 100644
--- a/pdns/recursordist/rec-main.hh
+++ b/pdns/recursordist/rec-main.hh
@@ -556,7 +556,9 @@ public:
 
   static void joinThread0()
   {
-    info(0).thread.join();
+    if (!s_threadInfos.empty()) {
+      info(0).thread.join();
+    }
   }
 
   static void resize(size_t size)
-- 
2.47.3