Description of problem: When restarting ovs, if it contains a flow that matches igmp traffic, ovs-ctl fails to restore the flows (and in fact all flows on the bridge are lost). Version-Release number of selected component (if applicable): Tested with latest (and upstream) openvswitch2.15 How reproducible: Always Steps to Reproduce: 1. /usr/share/openvswitch/scripts/ovs-ctl start openvswitch 2. ovs-vsctl add-br br0 3. ovs-ofctl add-flow br0 "ip,nw_proto=2 actions=drop" 4. /usr/share/openvswitch/scripts/ovs-ctl restart openvswitch Actual results: /usr/share/openvswitch/scripts/ovs-ctl restart Saving flows [ OK ] Exiting ovsdb-server (2041630) [ OK ] Starting ovsdb-server [ OK ] system ID not configured, please use --system-id ... failed! Configuring Open vSwitch system IDs [ OK ] Exiting ovs-vswitchd (2041671) [ OK ] Starting ovs-vswitchd [ OK ] Restoring saved flows ovs-ofctl: /tmp/ovs-save.FmwE0BbwhG/br0.flows.dump:2: field igmp missing value $ ovs-ofctl dump-flows br0 (Does not contain flows after offending flow) Expected results: Error should not be generated and flows should be restored Additional info:
[root@netqe9 ~]# uname -r 4.18.0-305.25.1.el8_4.x86_64 # Reproduced issue using openvswitch2.15-2.15.0-42.el8fdp: [root@netqe9 ~]# rpm -qa | grep openvswitch openvswitch-selinux-extra-policy-1.0-28.el8fdp.noarch openvswitch2.15-2.15.0-42.el8fdp.x86_64 /usr/share/openvswitch/scripts/ovs-ctl start ovs-vsctl add-br br0 ovs-ofctl del-flows br0 ovs-ofctl add-flow br0 "ip,nw_proto=2 actions=drop" ovs-ofctl add-flow br0 in_port=1,idle_timeout=0,actions=output:1 ovs-ofctl add-flow br0 in_port=2,idle_timeout=0,actions=output:2 [root@netqe9 ~]# ovs-ofctl dump-flows br0 cookie=0x0, duration=228.052s, table=0, n_packets=0, n_bytes=0, igmp actions=drop cookie=0x0, duration=13.023s, table=0, n_packets=0, n_bytes=0, in_port=1 actions=output:1 cookie=0x0, duration=3.090s, table=0, n_packets=0, n_bytes=0, in_port=2 actions=output:2 [root@netqe9 ~]# /usr/share/openvswitch/scripts/ovs-ctl restart Saving flows [ OK ] Exiting ovsdb-server (38264) [ OK ] Starting ovsdb-server [ OK ] system ID not configured, please use --system-id ... failed! Configuring Open vSwitch system IDs [ OK ] Exiting ovs-vswitchd (38290) [ OK ] Starting ovs-vswitchd [ OK ] Restoring saved flows ovs-ofctl: /tmp/ovs-save.9XhQNl7BQU/br0.flows.dump:1: field igmp missing value [ OK ] Enabling remote OVSDB managers [ OK ] [root@netqe9 ~]# ovs-ofctl dump-flows br0 cookie=0x0, duration=3.197s, table=0, n_packets=0, n_bytes=0, priority=0 actions=NORMAL [root@netqe9 ~]# ################################################### # Verified fix in openvswitch2.15-2.15.0-55.el8fdp: [root@netqe9 ~]# rpm -qa | grep openvswitch openvswitch-selinux-extra-policy-1.0-28.el8fdp.noarch openvswitch2.15-2.15.0-55.el8fdp.x86_64 ovs-ofctl del-flows br0 ovs-vsctl del-br br0 ovs-vsctl add-br br0 ovs-ofctl add-flow br0 "ip,nw_proto=2 actions=drop" ovs-ofctl add-flow br0 in_port=1,idle_timeout=0,actions=output:1 ovs-ofctl add-flow br0 in_port=2,idle_timeout=0,actions=output:2 [root@netqe9 ~]# ovs-ofctl dump-flows br0 cookie=0x0, duration=8.889s, table=0, n_packets=0, n_bytes=0, igmp actions=drop cookie=0x0, duration=8.879s, table=0, n_packets=0, n_bytes=0, in_port=1 actions=output:1 cookie=0x0, duration=7.414s, table=0, n_packets=0, n_bytes=0, in_port=2 actions=output:2 cookie=0x0, duration=8.902s, table=0, n_packets=0, n_bytes=0, priority=0 actions=NORMAL [root@netqe9 ~]# /usr/share/openvswitch/scripts/ovs-ctl restart Saving flows [ OK ] Exiting ovsdb-server (39336) [ OK ] Starting ovsdb-server [ OK ] system ID not configured, please use --system-id ... failed! Configuring Open vSwitch system IDs [ OK ] Exiting ovs-vswitchd (39362) [ OK ] Starting ovs-vswitchd [ OK ] Restoring saved flows [ OK ] Enabling remote OVSDB managers [ OK ] [root@netqe9 ~]# ovs-ofctl dump-flows br0 cookie=0x0, duration=8.504s, table=0, n_packets=0, n_bytes=0, igmp actions=drop cookie=0x0, duration=8.504s, table=0, n_packets=0, n_bytes=0, in_port=1 actions=output:1 cookie=0x0, duration=8.504s, table=0, n_packets=0, n_bytes=0, in_port=2 actions=output:2 cookie=0x0, duration=8.608s, table=0, n_packets=0, n_bytes=0, priority=0 actions=NORMAL [root@netqe9 ~]#
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (openvswitch2.15 update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2022:0052