[Bug 1977847] [NEW] OVS/CT kernel stack trace during boot on Jammy OS

Launchpad Bug Tracker 1977847 at bugs.launchpad.net
Tue Jun 7 13:21:48 UTC 2022


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Charmed Openstack deployment (Yoga) with Jammy series
(For testing OVN Hardware Offload with Connection Tracking)

# cat /etc/lsb-release 
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=22.04
DISTRIB_CODENAME=jammy
DISTRIB_DESCRIPTION="Ubuntu 22.04 LTS"

root at node3:/home/ubuntu# uname -a
Linux node3 5.15.0-35-generic #36-Ubuntu SMP Sat May 21 02:24:07 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

root at node3:/home/ubuntu# ovs-vsctl --version
ovs-vsctl (Open vSwitch) 2.17.0
DB Schema 8.3.0

I see the following trace on dmesg every time the server boots up (full
trace in the attached file):

[Mon Jun  6 10:51:09 2022] RIP: 0010:__ovs_ct_lookup+0x36c/0x3e0
[openvswitch]

[Mon Jun  6 10:51:09 2022] Call Trace:
[Mon Jun  6 10:51:09 2022]  <TASK>
[Mon Jun  6 10:51:09 2022]  ovs_ct_execute+0x3a2/0x490 [openvswitch]
[Mon Jun  6 10:51:09 2022]  do_execute_actions+0xbb/0xa90 [openvswitch]
[Mon Jun  6 10:51:09 2022]  ? __ovs_nla_copy_actions+0x5a0/0x8a0 [openvswitch]
[Mon Jun  6 10:51:09 2022]  ? __kmalloc+0x179/0x330
[Mon Jun  6 10:51:09 2022]  ovs_execute_actions+0x4c/0x110 [openvswitch]
[Mon Jun  6 10:51:09 2022]  ovs_packet_cmd_execute+0x280/0x300 [openvswitch]
[Mon Jun  6 10:51:09 2022]  genl_family_rcv_msg_doit+0xe7/0x150
[Mon Jun  6 10:51:09 2022]  genl_rcv_msg+0xe2/0x1e0
[Mon Jun  6 10:51:09 2022]  ? ovs_vport_cmd_del+0x200/0x200 [openvswitch]

I see the same trace when deploying OpenStack with Focal series and HWE-
Edge kernel...

** Affects: openvswitch (Ubuntu)
     Importance: Undecided
         Status: New

-- 
OVS/CT kernel stack trace during boot on Jammy OS
https://bugs.launchpad.net/bugs/1977847
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