On Tue, Nov 23, 2021 at 3:01 PM Kevin Traynor <[email protected]> wrote: > > It seems that on slow system with high concurrency and cpu contention > time/warp is not accurate enough for the ALB unit tests with the minimum > time/warp that was used to hit an amount of events. This results in some > intermittent test failures. > > As those tests are just waiting for a certain amount of events to occur > and there is no functional change during that time let's do the time/warp > again with higher values. > > With this no failures are seen in several hundred runs. > > Fixes: a83a406096e9 ("dpif-netdev: Sync PMD ALB state with user commands.") > Reported-by: Ilya Maximets <[email protected]>
Fwiw, I managed to reproduce with below commands (test failed in 7 runs out of 10 on my laptop before patch). In separate terminals: $ taskset -c 3 sh -c 'while true; do true; done' $ taskset -c 3 make -C master check TESTSUITEFLAGS="-d 1026" > Signed-off-by: Kevin Traynor <[email protected]> Reviewed-by: David Marchand <[email protected]> I let the test run ~50 times, no issue with patch. -- David Marchand _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
