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=== Description (from pull-request) ===
Older kernels prevent bridge MTU from being raised to value higher than
lowest member.

Signed-off-by: Stéphane Graber <stgra...@ubuntu.com>
From 29308a9ef24a9caf1a8ba038fe76170a58e6e68a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?St=C3=A9phane=20Graber?= <stgra...@ubuntu.com>
Date: Mon, 25 May 2020 21:47:54 -0400
Subject: [PATCH] tests: Don't assume bridge MTU can be forced up
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Older kernels prevent bridge MTU from being raised to value higher than
lowest member.

Signed-off-by: Stéphane Graber <stgra...@ubuntu.com>
---
 test/suites/container_devices_nic_bridged.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/test/suites/container_devices_nic_bridged.sh 
b/test/suites/container_devices_nic_bridged.sh
index dbde3897dd..14e27ab3f3 100644
--- a/test/suites/container_devices_nic_bridged.sh
+++ b/test/suites/container_devices_nic_bridged.sh
@@ -276,8 +276,10 @@ test_container_devices_nic_bridged() {
   fi
 
   # Check that MTU is inherited from parent device when not specified on 
device.
-  lxc network set "${brName}" bridge.mtu "1405"
+  lxc stop "${ctName}" --force
   lxc config device unset "${ctName}" eth0 mtu
+  lxc network set "${brName}" bridge.mtu "1405"
+  lxc start "${ctName}"
   if ! lxc exec "${ctName}" -- grep "1405" /sys/class/net/eth0/mtu ; then
     echo "mtu not inherited from parent"
     false
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