Hi Pedro, > Wouldn't it be beneficial for all guests to be shutdown before unmounting all filesystems?
Yes on first sight that looks like a compelling suggestion. But i've learned the hard way that usually adding dependencies eventually breaks more things than it fixes - so let us first try to understand what to expect and what happened. The ordering at the moment includes: - libvirt-guests.service - virt-guest-shutdown.target - libvirtd.service Of these the "big one" is libvirtd.service which has After=network.target After=local-fs.target After=remote-fs.target And many more which imply further lateness on startup. libvirt-guests.service is what shuts down the guests and starts as After=libvirtd.service and thereby after all of the above. virt-guest-shutdown.target exists to allow people to hook arbitrary things into this chain in case any thing needs to be done. Note: In most cases it is better t identify what a local system has that makes it special and set it up to go down before this. See the discussion and references from https://bugzilla.redhat.com/show_bug.cgi?id=1401054 for this. On shutdown usually the order of these is reversed - I'd expect that libvirt-guests.service needs to stop before libvirtd.service stops (which also is reasonable as it needs to interact with libvirt). And libvirt.service should need to be passed to leave the local/remote-FS targets on the way out, but targets might be more special in this regard. Therefore the question becomes - which FS or FS-target was stopped/cut in your case before libvirt.service was stopped. Could you maybe share the journal of that boot so that we can try to dissect what was going down beofore it? You can access those with $ journalctl --list-boots And then select the right one and redirect it into a file like $ journalctl -b <number> > logfile ** Bug watch added: Red Hat Bugzilla #1401054 https://bugzilla.redhat.com/show_bug.cgi?id=1401054 ** Changed in: libvirt (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1924494 Title: Systemd shutdown order unmounts filesystem used by qemu/kvm guest before shutting down the guest To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1924494/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
