Public bug reported: * Description When restarting neutron-linuxbridge-agent it fails, because it cannot remove nf_tables chains
* Pre-conditions Openstack Ussuri on Ubuntu 20.04 installed as described in https://docs.openstack.org/install-guide on real hardware. * reproduction steps When you remove an instance there seem to remain some rules in neutronARP-* and neutronMAC-* tables. When restarting neutron-linuxbridge-agent then, it fails: neutron_lib.exceptions.ProcessExecutionError: Exit code: 4; Stdin: ; Stdout: ; Stderr: ebtables v1.8.4 (nf_tables): CHAIN_USER_DEL failed (Device or resource busy): chain neutronARP-tap0a9b5e3a-21 INFO neutron.plugins.ml2.drivers.agent._common_agent [-] Stopping Linux bridge agent agent. After flushing these chains the agent can be started. # openstack --version openstack 5.2.0 * severity: blocker ** Affects: neutron Importance: Undecided Status: New ** Tags: openstack-neutron -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1915341 Title: neutron-linuxbridge-agent not starting due to nf_tables rules Status in neutron: New Bug description: * Description When restarting neutron-linuxbridge-agent it fails, because it cannot remove nf_tables chains * Pre-conditions Openstack Ussuri on Ubuntu 20.04 installed as described in https://docs.openstack.org/install-guide on real hardware. * reproduction steps When you remove an instance there seem to remain some rules in neutronARP-* and neutronMAC-* tables. When restarting neutron-linuxbridge-agent then, it fails: neutron_lib.exceptions.ProcessExecutionError: Exit code: 4; Stdin: ; Stdout: ; Stderr: ebtables v1.8.4 (nf_tables): CHAIN_USER_DEL failed (Device or resource busy): chain neutronARP-tap0a9b5e3a-21 INFO neutron.plugins.ml2.drivers.agent._common_agent [-] Stopping Linux bridge agent agent. After flushing these chains the agent can be started. # openstack --version openstack 5.2.0 * severity: blocker To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1915341/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
