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[Kleber Sacilotto de Souza <2104134@xxxxxxxxxxxxxxxxxx>]

The fix for this issue (linux upstream commit
306ed1728e8438caed30332e1ab46b28c25fe3d8 - netfilter: xtables: fix typo
causing some targets not to load on IPv6) has been applied to
noble/linux linux 6.8.0-58.60 as part of bug 2097575 (Noble update:
upstream stable patchset 2025-02-07) and released to noble-updates on
2025-04-16.

** Also affects: linux (Ubuntu Noble)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu)
       Status: Confirmed => Fix Released

** Changed in: linux (Ubuntu Noble)
   Importance: Undecided => Critical

** Changed in: linux (Ubuntu Noble)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/2104134

Title:
  ovs/linuxbridge jobs running on ubuntu noble broken with latest kernel
  6.8.0-56.58

Status in neutron:
  Confirmed
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Noble:
  Fix Released

Bug description:
  A commit[1] got backported to ubuntu noble kernel[2] which had an issue, Fix is already available[3] in build[4] but not yet released. So all our ovs/linuxbridge/fullstack/functional jobs running on ubuntu noble are impacted. Master, 2025.1 or any releases running ovs jobs on noble are impacted.
   
  Errors like below can be seen in these jobs
  Mar 25 09:31:52.485392 np0040258543 neutron-l3-agent[62960]: ERROR neutron.agent.l3.agent # Completed by iptables_manager
  Mar 25 09:31:52.485392 np0040258543 neutron-l3-agent[62960]: ERROR neutron.agent.l3.agent ; Stdout: ; Stderr: Warning: Extension MARK revision 0 not supported, missing kernel module?
  Mar 25 09:31:52.485392 np0040258543 neutron-l3-agent[62960]: ERROR neutron.agent.l3.agent ip6tables-restore v1.8.10 (nf_tables): unknown option "--set-xmark"
  Mar 25 09:31:52.485392 np0040258543 neutron-l3-agent[62960]: ERROR neutron.agent.l3.agent Error occurred at line: 28
  Mar 25 09:31:52.485392 np0040258543 neutron-l3-agent[62960]: ERROR neutron.agent.l3.agent Try `ip6tables-restore -h' or 'ip6tables-restore --help' for more information.

  example failures:-
  https://c00e7c7cf4b62bf664e8-ab9cdbb0aa9d61bf3167c27c9fa17003.ssl.cf1.rackcdn.com/openstack/fca5ab13dc674574953941a6e09eb935/testr_results.html
  https://cf3ed66a65616b206bcc-d1906ed32ef7c4deba2ba4dd3d406176.ssl.cf1.rackcdn.com/openstack/071c7b51c1d448348e6e5dd4da8f4c9c/testr_results.html
  https://storage.gra.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_f60/openstack/f607cb89924e40019d37a617c6b009e8/testr_results.html

  Until the new kernel with fix is released we need to remove the broken
  noble images and pause new builds like it was done in past for same
  issue in jammy
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2091990/comments/3

  
  [1] https://github.com/torvalds/linux/commit/0bfcb7b71e735560077a42847f69597ec7dcc326
  [2] https://bugs.launchpad.net/kernel-sru-workflow/+bug/2098244
  [3] https://github.com/torvalds/linux/commit/306ed1728e8438caed30332e1ab46b28c25fe3d8
  [4] https://bugs.launchpad.net/kernel-sru-workflow/+bug/2102529

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