Unfortunately I still can't reproduce the issue *without* the debug systemd package and with the ISO provided by Carlos (comment #87). Andreas, Carlos, are you able to reproduce again without the debug package at least ? I think there's no point in trying to reproduce with the special repo if it can't be reproduced without it. OTOH if it appears that using the debug package prevents the bug to be triggered, I can try a different approach (less performance intrusive).