From 6ff89b31a25014b18d06f25920ccd1a355903e1f Mon Sep 17 00:00:00 2001
From: Con Kolivas <kernel@kolivas.org>
Date: Mon, 14 Dec 2015 22:08:48 +1100
Subject: [PATCH] Check server fd is still valid as well as having its alive
 flag set

---
 src/generator.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/generator.c b/src/generator.c
index 88bf20b2..2853baf7 100644
--- a/src/generator.c
+++ b/src/generator.c
@@ -213,8 +213,9 @@ retry:
 	 * without blocking on server_alive() */
 	for (i = 0; i < ckp->btcds; i++) {
 		server_instance_t *si = ckp->servers[i];
+		cs = &si->cs;
 
-		if (si->alive) {
+		if (si->alive && cs->fd > 0) {
 			alive = si;
 			goto living;
 		}