Failed to reproduce on my side. I'll redo, disabling update repo perhaps :-? Yes, I think it is possibly some race condition or some trigger that we do not know what it is. Meanwhile, my previous run detected a bug on btrfsmaintenance, because it should not run like it did on my test system, which I'll report later. As curiosity, the upgrade took 4,8333 hours ;-) time zypper dup... real 290m35.710s user 92m2.886s sys 132m7.424s I have a Virtualbox snapshot placed just before running zypper dup, so it is really easy for me to run it.