Patch proposed: https://review.opendev.org/c/openstack/neutron/+/963390
** Changed in: neutron
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/2127038
Title:
OVN CI jobs on ironic are broken
Status in Ironic:
New
Status in neutron:
Fix Released
Bug description:
The Ironic OVN CI jobs, represented by:
ironic-tempest-ovn-uefi-ipmi-pxe
ironic-tempest-ovn-uefi-ipxe-ipv6
Both jobs utilize OVN which supports DHCP, one for IPv4 and one for
IPv6 which appears to have broken starting around midnight, on October
5th, 2025.
The state we find the CI jobs in is where the baremetal nodes appear
not to get DHCP packet handling and ultimately never boot.
tl;dr is that we end up with errors like the line below in the console
log.
>>Start PXE over IPv4.
or a connection timed out if some data gets across.
It appears IPv6 jobs are not as susceptible to this issue, but still
do sporadically fail.
https://zuul.opendev.org/t/openstack/builds?job_name=ironic-tempest-ovn-uefi-ipmi-pxe&project=openstack/ironic
https://zuul.opendev.org/t/openstack/builds?job_name=ironic-tempest-ovn-uefi-ipxe-ipv6&project=openstack/ironic
Console logs sourced via:
-
https://storage.gra.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_244/openstack/244c6b9611c94e879c73f4c9a630c45d/controller/logs/ironic-bm-logs/index.html
-
https://e31ba1ae87a54b333074-6d75abbe2d1bba564eb60ae65c4ffb8a.ssl.cf1.rackcdn.com/openstack/d9ecf0ccbe094371bdea42c7f8e14c7b/controller/logs/ironic-bm-logs/index.html
-
https://fab7ac47e8647a645ec4-46682989e655431f9d8a4a56f6d0c4c2.ssl.cf2.rackcdn.com/openstack/5a74c98655d745e5afc9ad7a93bd0df0/controller/logs/ironic-bm-logs/index.html
Since Ironic had not merged any changes in the time window where this
started to error, this quickly led to reviewing changes against the
Neutron repository.
During the time window, the following changes merged (in order):
- https://review.opendev.org/c/openstack/neutron/+/962191/
- https://review.opendev.org/c/openstack/neutron/+/962402/
- https://review.opendev.org/c/openstack/neutron/+/962404/
- https://review.opendev.org/c/openstack/neutron/+/962406/ (Unit test only
change)
- https://review.opendev.org/c/openstack/neutron/+/962568/
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