From 0b9fafe80aa1038148bfd6e9f7346374bb7b7569 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20Gonz=C3=A1lez?= <cgonzalez@opennebula.io>
Date: Mon, 17 Jan 2022 18:56:38 +0100
Subject: [PATCH] M #: Fix race condition deleting ipset

(cherry picked from commit 1bd9a83659edd518476a2ad34f0bdc7c3caffc9e)
---
 src/vnm_mad/remotes/lib/security_groups_iptables.rb | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/vnm_mad/remotes/lib/security_groups_iptables.rb b/src/vnm_mad/remotes/lib/security_groups_iptables.rb
index 558378563a..2622905969 100644
--- a/src/vnm_mad/remotes/lib/security_groups_iptables.rb
+++ b/src/vnm_mad/remotes/lib/security_groups_iptables.rb
@@ -615,6 +615,9 @@ module SGIPTables
         remove_chains_6.each {|c| commands.add :ip6tables, "-F #{c}" }
         remove_chains_6.each {|c| commands.add :ip6tables, "-X #{c}" }
 
+        # delay to allow kernel to clean up
+        commands.add 'sleep', '0.1'
+
         ipset_list.lines.each do |line|
             if line.match(/^#{chain}(-|$)/)
                 set = line.strip