** Description changed: - As detected by the ovn system testsuite the following test fails when - upgrading iprotue2 from 6.14 to more recent versions: + [Impact] + Patches on iproute2 changed the rounding math for the burst parameter and this made openvswitch autopkgtests fail as they expect specific values for the burst parameter. + A patch for iproute2 is being backported in LP #2125448 that includes this behavior change and autopkgtests are failing because of this issue. - egress qos + [Test Plan] + Running openvswitch autopkgtests without this patch should fail with the updated version of iproute2. After applying this patch tests should run successfully. + The tests have to be run using qemu as it needs full virtualization. For this first an image has to be created using: - The command being executed by the testsuite is: + # autopkgtest-buildvm-ubuntu-cloud -r <release> - tc class show dev ovs-public + That should create an image file called autopkgtest-<release>-amd64.img - And the printed value becomes: + Then, assuming that the openvswitch version to test is downloaded on the + openvswitch folder, the test is run by this command: - class htb 1:2 parent 1:fffe prio 0 rate 12Kbit ceil 34359Mbit burst - 375000b cburst 374933b + autopkgtest openvswitch/ -U -- qemu autopkgtest-<release>-amd64.img - While the expected output is: + To test with the iproute2 package in proposed from LP #2125448 the + command should be: - class htb 1:2 parent 1:fffe prio 0 rate 12Kbit ceil 34359Mbit burst - 375000b cburst 373662b + autopkgtest openvswitch/ -U --apt-pocket=proposed=src:iproute2 -- qemu + autopkgtest-<release>-amd64.img\n - The issue appears to be present in iproute2 versions 6.17.0-1, - 6.16.0-1ubuntu2 - - Downgrading to 6.14.0-1ubuntu1 makes the problem go away. + [Where problems could occur] + The change in the tests makes them less restrictive with respect to the exact value of the burst parameter so every test that passed the previous tests should still pass them after the update
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2129005 Title: tc class show dev change of behavior for values of burst and cburst To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/iproute2/+bug/2129005/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
