From cba03e49a4d1fe1d6d4605b2a9eeb5a015099a23 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Kuzn=C3=ADk?= <ondra@mistotebe.net>
Date: Fri, 19 Feb 2021 08:54:45 +0000
Subject: [PATCH] ITS#8747 Protect shutdown code while workers are still alive

---
 servers/lloadd/daemon.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/servers/lloadd/daemon.c b/servers/lloadd/daemon.c
index f60db22c67..d402dfe6b1 100644
--- a/servers/lloadd/daemon.c
+++ b/servers/lloadd/daemon.c
@@ -1332,10 +1332,14 @@ lloadd_daemon( struct event_base *daemon_base )
 
     /* Mark upstream connections closing and prevent from opening new ones */
     LDAP_CIRCLEQ_FOREACH ( b, &backend, b_next ) {
+        epoch_t epoch = epoch_join();
+
         checked_lock( &b->b_mutex );
         b->b_numconns = b->b_numbindconns = 0;
         backend_reset( b, 1 );
         checked_unlock( &b->b_mutex );
+
+        epoch_leave( epoch );
     }
 
     /* Do the same for clients */