I don't want to revert the original fix because I don't think that gets us to a better place. With that fix in place, at least deployers have a chance of seeing from the sanity check that they need to update dnsmasq to a higher minimum version in order to use stateful IPv6. If they see it and update dnsmasq, then stateful IPv6 has a chance of working. If we revert then we have no chance of it working.
Ideally, from a end user's point of view, we'd generate an API error if the agents aren't going to be able to handle a stateful IPv6 subnet. So, I think we should work toward that. But, to accomplish that, we'll end up with a fix that cannot be backported to Newton, right? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to dnsmasq in Ubuntu. https://bugs.launchpad.net/bugs/1622002 Title: dhcp_release6 can be called when it is not present Status in neutron: In Progress Status in dnsmasq package in Ubuntu: New Bug description: If someone enables dhcpv6-stateful addressing on a subnet, but they are running an old version of dnsmasq (<2.76), then the dhcp agent could try and run dhcp_release6 even though it isn't present. An example: http://logs.openstack.org/53/365653/5/check/gate-tempest-dsvm-neutron- multinode-full-ubuntu- xenial/813d16d/logs/screen-q-dhcp.txt.gz#_2016-09-06_11_40_02_272 Checking it's present first would fix this problem. Since the change to call dhcp_release6 was just added in https://review.openstack.org/#/c/301747/ we should fix this before Newton ships and people complain. There is also an effort to get Cirros to support DHCPv6 so that we can test this in the gate, https://bugs.launchpad.net/cirros/+bug/1487041 - hopefully that gets done so we can add a functional test. To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1622002/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp