Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

The FDP team is no longer accepting new bugs in Bugzilla. Please report your issues under FDP project in Jira. Thanks.

Bug 2029938

Summary:	Restoring saved flows ovs-ofctl: [...] field igmp missing value
Product:	Red Hat Enterprise Linux Fast Datapath	Reporter:	Salvatore Daniele <sdaniele>
Component:	openvswitch2.13	Assignee:	Salvatore Daniele <sdaniele>
Status:	CLOSED ERRATA	QA Contact:	Rick Alongi <ralongi>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	FDP 20.E	CC:	amorenoz, ctrautma, jhsiao, ralongi, sdaniele, tredaelli
Target Milestone:	---
Target Release:	FDB 18.04
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	openvswitch2.13-2.13.0-113.el7fdp	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1982743	Environment:
Last Closed:	2022-03-30 16:29:06 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1982743, 2029940, 2029944
Bug Blocks:

Description Salvatore Daniele 2021-12-07 15:46:16 UTC

+++ This bug was initially created as a clone of Bug #1982743 +++

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:

--- Additional comment from Red Hat Bugzilla on 2021-09-21 10:02:10 UTC ---

remove performed by PnT Account Manager <pnt-expunge>

Comment 3 Rick Alongi 2022-03-08 15:19:22 UTC

Please confirm that this BZ is for the fix in openvswitch2.13-2.13.0-113.el7fdp.  I'm asking because comment #1 indicates it for errata
https://errata.devel.redhat.com/advisory/89442 which is for package openvswitch2.13-2.13.0-162.el8fdp.

Comment 4 Rick Alongi 2022-03-08 15:22:41 UTC

For clarification, the question is: is this BZ for the fix in OVS for el7 or in el8 because there is no errata for el7.

Comment 5 Rick Alongi 2022-03-09 12:26:53 UTC

I am marking this as Verified (see notes below).  I confirmed that this fix is for el7 as the BZ that added the fix to OVS 2.13 for RHEL-8 is [1] which was part of FDP 22.A OVS 2.13 RHEL-8 errata [2].

I believe this BZ should be removed from FDP 22.B OVS 2.13 RHEL-8 errata [3].

[1] https://bugzilla.redhat.com/show_bug.cgi?id=2029944
[2] https://errata.devel.redhat.com/advisory/86957
[3] https://errata.devel.redhat.com/advisory/89442


Reproduced isue using openvswitch2.13-2.13.0-112.el7fdp.x86_64:

[root@netqe9 ~]# uname -r
3.10.0-1160.59.1.el7.x86_64

[root@netqe9 ~]# rpm -qa | grep openvswitch
openvswitch-selinux-extra-policy-1.0-18.el7fdp.noarch
openvswitch2.13-2.13.0-112.el7fdp.x86_64

[root@netqe9 ~]# /usr/share/openvswitch/scripts/ovs-ctl start
ovsdb-server is already running.
ovs-vswitchd is already running.
Enabling remote OVSDB managers                             [  OK  ]

[root@netqe9 ~]# ovs-vsctl --if-exists del-br br0
[root@netqe9 ~]# ovs-vsctl add-br br0
[root@netqe9 ~]# ovs-ofctl del-flows br0
[root@netqe9 ~]# ovs-ofctl add-flow br0 "ip,nw_proto=2 actions=drop"
[root@netqe9 ~]# ovs-ofctl add-flow br0 in_port=1,idle_timeout=0,actions=output:1
[root@netqe9 ~]# ovs-ofctl add-flow br0 in_port=2,idle_timeout=0,actions=output:2
[root@netqe9 ~]# ovs-ofctl dump-flows br0
 cookie=0x0, duration=11.780s, table=0, n_packets=0, n_bytes=0, igmp actions=drop
 cookie=0x0, duration=11.770s, table=0, n_packets=0, n_bytes=0, in_port=1 actions=output:1
 cookie=0x0, duration=11.759s, 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 (17461)                               [  OK  ]
Starting ovsdb-server                                      [  OK  ]
system ID not configured, please use --system-id ... failed!
Configuring Open vSwitch system IDs                        [  OK  ]
Exiting ovs-vswitchd (17536)                               [  OK  ]
Starting ovs-vswitchd                                      [  OK  ]
Restoring saved flows ovs-ofctl: /tmp/ovs-save.xGfNpsZi3s/br0.flows.dump:1: field igmp missing value
                                                           [  OK  ]
Enabling remote OVSDB managers                             [  OK  ]
[root@netqe9 ~]# ovs-ofctl dump-flows br0
 cookie=0x0, duration=3.146s, table=0, n_packets=0, n_bytes=0, priority=0 actions=NORMAL
[root@netqe9 ~]# 

Verified fix in openvswitch2.13-2.13.0-132.el7fdp.x86_644:

[root@netqe9 ~]# uname -r
3.10.0-1160.59.1.el7.x86_64

[root@netqe9 ~]# rpm -qa | grep openvswitch
openvswitch-selinux-extra-policy-1.0-18.el7fdp.noarch
openvswitch2.13-2.13.0-132.el7fdp.x86_64

[root@netqe9 ~]# /usr/share/openvswitch/scripts/ovs-ctl start
/etc/openvswitch/conf.db does not exist ... (warning).
Creating empty database /etc/openvswitch/conf.db           [  OK  ]
Starting ovsdb-server                                      [  OK  ]
system ID not configured, please use --system-id ... failed!
Configuring Open vSwitch system IDs                        [  OK  ]
Inserting openvswitch module                               [  OK  ]
Starting ovs-vswitchd                                      [  OK  ]
Enabling remote OVSDB managers                             [  OK  ]

[root@netqe9 ~]# ovs-vsctl --if-exists del-br br0
[root@netqe9 ~]# ovs-vsctl add-br br0
[root@netqe9 ~]# ovs-ofctl del-flows br0
[root@netqe9 ~]# ovs-ofctl add-flow br0 "ip,nw_proto=2 actions=drop"
[root@netqe9 ~]# ovs-ofctl add-flow br0 in_port=1,idle_timeout=0,actions=output:1
[root@netqe9 ~]# ovs-ofctl add-flow br0 in_port=2,idle_timeout=0,actions=output:2
[root@netqe9 ~]# ovs-ofctl dump-flows br0
 cookie=0x0, duration=12.030s, table=0, n_packets=0, n_bytes=0, igmp actions=drop
 cookie=0x0, duration=12.020s, table=0, n_packets=0, n_bytes=0, in_port=1 actions=output:1
 cookie=0x0, duration=12.009s, 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 (17299)                               [  OK  ]
Starting ovsdb-server                                      [  OK  ]
system ID not configured, please use --system-id ... failed!
Configuring Open vSwitch system IDs                        [  OK  ]
Exiting ovs-vswitchd (17326)                               [  OK  ]
Starting ovs-vswitchd                                      [  OK  ]
Restoring saved flows                                      [  OK  ]
Enabling remote OVSDB managers                             [  OK  ]

[root@netqe9 ~]# ovs-ofctl dump-flows br0
 cookie=0x0, duration=10.646s, table=0, n_packets=0, n_bytes=0, igmp actions=drop
 cookie=0x0, duration=10.646s, table=0, n_packets=0, n_bytes=0, in_port=1 actions=output:1
 cookie=0x0, duration=10.646s, table=0, n_packets=0, n_bytes=0, in_port=2 actions=output:2
[root@netqe9 ~]#

Comment 7 errata-xmlrpc 2022-03-30 16:29:06 UTC

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 (openvswitch2.13 bug fix and enhancement 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-2022:1147