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Bug 1775160 - OCP IPv6 - Packets dropped on upcall from kernel after SNAT - Failed to acquire udpif_key corresponding to unexpected flow
Summary: OCP IPv6 - Packets dropped on upcall from kernel after SNAT - Failed to acqui...
Keywords:
Status: CLOSED EOL
Alias: None
Product: Red Hat Enterprise Linux Fast Datapath
Classification: Red Hat
Component: openvswitch2.13
Version: RHEL 7.7
Hardware: Unspecified
OS: Unspecified
unspecified
urgent
Target Milestone: ---
: ---
Assignee: Numan Siddique
QA Contact: Jianlin Shi
URL:
Whiteboard:
Depends On: 1773605 1776969 1776973 1776994
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-11-21 13:59 UTC by Numan Siddique
Modified: 2025-02-06 04:25 UTC (History)
11 users (show)

Fixed In Version: openvswitch2.13-2.13.0-7.el8fdp
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 1773605
Environment:
Last Closed: 2024-10-08 17:49:14 UTC
Target Upstream Version:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker FD-318 0 None None None 2023-05-16 09:29:26 UTC
Red Hat Product Errata RHBA-2020:1435 0 None None None 2020-04-14 08:22:22 UTC

Comment 1 Dan Williams 2020-03-19 03:04:15 UTC 
Numan is working on this again: https://mail.openvswitch.org/pipermail/ovs-dev/2020-March/368642.html
Comment 2 Numan Siddique 2020-03-23 07:44:20 UTC 
Ben submitted the patch for the fix and it is merged now upstream in master and branch 2.13

https://github.com/openvswitch/ovs/commit/323ae1e808e6ac503f5c7ddd50a79d908fdd0e41
Comment 6 Jianlin Shi 2020-03-26 01:53:24 UTC 
tested on openvswitch2.13.0-9:

:: [ 21:47:59 ] :: [  BEGIN   ] :: Running 'ip netns exec fake_vm2 ping6 -I fake_vm2 fd01::28e7:a3ff:fe00:5 -c 5'
PING fd01::28e7:a3ff:fe00:5(fd01::28e7:a3ff:fe00:5) from fd01::28e7:a3ff:fe00:8 fake_vm2: 56 data bytes
64 bytes from fd01::28e7:a3ff:fe00:5: icmp_seq=1 ttl=64 time=3.30 ms  
64 bytes from fd01::28e7:a3ff:fe00:5: icmp_seq=2 ttl=64 time=0.906 ms           
64 bytes from fd01::28e7:a3ff:fe00:5: icmp_seq=3 ttl=64 time=0.114 ms                        
64 bytes from fd01::28e7:a3ff:fe00:5: icmp_seq=4 ttl=64 time=0.107 ms                      
64 bytes from fd01::28e7:a3ff:fe00:5: icmp_seq=5 ttl=64 time=0.112 ms
                                                                                                     
--- fd01::28e7:a3ff:fe00:5 ping statistics ---                                                               
5 packets transmitted, 5 received, 0% packet loss, time 4002ms                     
rtt min/avg/max/mdev = 0.107/0.908/3.303/1.236 ms                                          
:: [ 21:48:03 ] :: [   PASS   ] :: Command 'ip netns exec fake_vm2 ping6 -I fake_vm2 fd01::28e7:a3ff:fe00:5 -c 5' (Expected 0, got 0)
:: [ 21:48:03 ] :: [  BEGIN   ] :: Running 'dmesg | grep -E "Key type.*is out of range"'
:: [ 21:48:03 ] :: [   PASS   ] :: Command 'dmesg | grep -E "Key type.*is out of range"' (Expected 1, got 1)

<=== no error in dmesg

[root@dell-per740-12 bz1775778_kernel_unknown_flow]# rpm -qa | grep -E "openvswitch|ovn"
kernel-kernel-networking-openvswitch-ovn-regression-bz1775778_kernel_unknown_flow-1.0-1.noarch
openvswitch-selinux-extra-policy-1.0-15.el7fdp.noarch
ovn2.13-host-2.13.0-7.el7fdp.x86_64
kernel-kernel-networking-openvswitch-ovn-common-1.0-7.noarch
ovn2.13-central-2.13.0-7.el7fdp.x86_64 
ovn2.13-2.13.0-7.el7fdp.x86_64
openvswitch2.13-2.13.0-9.el7fdp.x86_64
Comment 10 Jianlin Shi 2020-03-27 00:47:30 UTC 
set VERIFIED per comment 6
Comment 14 ovs-bot 2024-10-08 17:49:14 UTC 
This bug did not meet the criteria for automatic migration and is being closed.
If the issue remains, please open a new ticket in https://issues.redhat.com/browse/FDP
Comment 15 Red Hat Bugzilla 2025-02-06 04:25:07 UTC 
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days
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