Hey folks! You may have noticed a substantial amount of incorrect test failures in openQA in the last 20 hours or so. I've now rebooted the broken system and rescheduled all the failed tests, but it will take a few hours for them to work through the system. A few may flake, too - I will catch these and restart them during the day.
Details for anyone interested: since updating to the latest openQA upstream code and Fedora 42, it seems like the worker hosts that run multi-worker networked jobs sometimes hit some kind of issue between openvswitch and dbus-broker, which causes all such jobs run after that point to fail at startup with "could not configure /dev/net/tun (tap19): Device or resource busy" errors. Other jobs also sometimes fail, I think because the broken tap jobs block VNC ports or something.
Another openQA user saw something similar and we're tracking it upstream at https://progress.opensuse.org/issues/183833 , but we haven't entirely got to the root cause yet. For now the only thing I can do is reboot the worker hosts when they get in this state. I didn't check openQA before going to bed last night so I let this drag out longer than necessary - sorry about that!