On Mon, Dec 2, 2024 at 4:15 PM Stanislav Fomichev <stfomichev@xxxxxxxxx> wrote: > Do you see this failing in your CI or in the BPF CI? I see this failing in our internal CI, in around 1% to 2% of the CI runs. > It seems ok > to add wait_for_port here, but the likelihood of the issue seems > minuscule. There is a bunch of ip/tc/etc calls between this > server_listen and the next client_connect (and I'd be surprised to hear > that netcat is still not listening by the time we reach next > client_connect). I'm surprised as well, and I've not found a good correlation with the root cause of the delayed server start, besides generic "slowness". You also make a good point - by calling wait_for_port this early we "waste" the opportunity to run the other ip commands in parallel in the meantime. I had considered moving this wait down, just before the next client_connect, but I concluded it might be less readable since it would be so distant from the server_listen it pairs with. But I can make that change if it seems better.