Thank you, having a reliable reproducer is very helpful! I can confirm this reproduces locally for me on QEMU.
I prepared a new systemd package [0], containing backports from the above mentioned PR that indeed sounds very related (I wonder why the issue didn't happen before, tho, as this is unrelated to any recent SRU). Using this package, I prepared a new '20211115' core18 base snap [1] and a corresponding UC18 image [2] for further testing. With this systemd version the reproducer passes for me with no problem. So I guess it's worth giving this another try with the full spread test. [0] https://launchpad.net/~slyon/+archive/ubuntu/lp1949089 [1] https://people.ubuntu.com/~slyon/uc18/core18_20211115_amd64.snap [2] https://people.ubuntu.com/~slyon/uc18/uc18-20211115+systemd+3G.img.xz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1949089 Title: systemd randomly fails to activate mount units in Ubuntu Core 18 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1949089/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs