From 211e7bc888ee52f0e9c31603d9c05148ed723303 Mon Sep 17 00:00:00 2001
From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Fri, 8 Mar 2019 12:34:29 +0200
Subject: [PATCH] lib: Panic on most epoll_ctl() failures

Anything except ENOSPC or ENOMEM points to a bug in code. Getting core dump
from those helps debugging.
---
 src/lib/ioloop-epoll.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/ioloop-epoll.c b/src/lib/ioloop-epoll.c
index 9d1868e87c..34e4098cae 100644
--- a/src/lib/ioloop-epoll.c
+++ b/src/lib/ioloop-epoll.c
@@ -145,7 +145,7 @@ void io_loop_handle_remove(struct io_file *io, bool closed)
 			const char *errstr = t_strdup_printf(
 				"epoll_ctl(%s, %d) failed: %m",
 				op == EPOLL_CTL_DEL ? "del" : "mod", io->fd);
-			if (errno == EBADF)
+			if (errno != ENOSPC && errno != ENOMEM)
 				i_panic("%s", errstr);
 			else
 				i_error("%s", errstr);