git: fd5828b62bdb - stable/12 - bridge tests: Avoid building a switching loop
Kristof Provost
kp at FreeBSD.org
Tue Mar 2 15:18:07 UTC 2021
The branch stable/12 has been updated by kp:
URL: https://cgit.FreeBSD.org/src/commit/?id=fd5828b62bdb5738143c81edb139365aa4151567
commit fd5828b62bdb5738143c81edb139365aa4151567
Author: Kristof Provost <kp at FreeBSD.org>
AuthorDate: 2020-06-01 19:26:16 +0000
Commit: Kristof Provost <kp at FreeBSD.org>
CommitDate: 2021-03-02 13:03:07 +0000
bridge tests: Avoid building a switching loop
Enable STP before bringing the bridges up. This avoids a switching loop,
which has a tendency to drown out progress in userspace processes,
especially on single-core systems.
Only check that we have indeed shut down one of the looped interfaces
PR: 246448
Reviewed by: melifaro
Differential Revision: https://reviews.freebsd.org/D25084
(cherry picked from commit e07e002e950aa673266e3d4b30c43e1198af65e0)
---
tests/sys/net/if_bridge_test.sh | 17 +++--------------
1 file changed, 3 insertions(+), 14 deletions(-)
diff --git a/tests/sys/net/if_bridge_test.sh b/tests/sys/net/if_bridge_test.sh
index a20eae49998f..b848a03b273d 100755
--- a/tests/sys/net/if_bridge_test.sh
+++ b/tests/sys/net/if_bridge_test.sh
@@ -72,7 +72,6 @@ stp_head()
{
atf_set descr 'Spanning tree test'
atf_set require.user root
- atf_set require.progs jq
}
stp_body()
@@ -87,13 +86,11 @@ stp_body()
vnet_mkjail a ${bridge_a} ${epair_one}a ${epair_two}a
vnet_mkjail b ${bridge_b} ${epair_one}b ${epair_two}b
- jexec a ifconfig ${bridge_a} up
jexec a ifconfig ${epair_one}a up
jexec a ifconfig ${epair_two}a up
jexec a ifconfig ${bridge_a} addm ${epair_one}a
jexec a ifconfig ${bridge_a} addm ${epair_two}a
- jexec b ifconfig ${bridge_b} up
jexec b ifconfig ${epair_one}b up
jexec b ifconfig ${epair_two}b up
jexec b ifconfig ${bridge_b} addm ${epair_one}b
@@ -101,23 +98,15 @@ stp_body()
jexec a ifconfig ${bridge_a} 192.0.2.1/24
- # Give the interfaces some time to come up and pass some traffic
- sleep 5
-
- # Confirm that there's looping traffic
- nbr=$(jexec a netstat -I ${bridge_a} --libxo json \
- | jq ".statistics.interface[0].\"received-packets\"")
- if [ ${nbr} -lt 100 ]
- then
- atf_fail "Expected bridging loop, but found very few packets."
- fi
-
# Enable spanning tree
jexec a ifconfig ${bridge_a} stp ${epair_one}a
jexec a ifconfig ${bridge_a} stp ${epair_two}a
jexec b ifconfig ${bridge_b} stp ${epair_one}b
jexec b ifconfig ${bridge_b} stp ${epair_two}b
+ jexec b ifconfig ${bridge_b} up
+ jexec a ifconfig ${bridge_a} up
+
# Give STP time to do its thing
sleep 5
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