Andy, Colin, can you please revert the workaround in /lib/systemd/system/NetworkManager.service (remove After=dbus.service), and instead append these lines in /lib/systemd/system/dbus.service, to the [Service] section:
ExecStop=/bin/true KillMode=none This makes things work in my tests, and is a better fix IMHO. But I'd like to confirm that this works for you too. Thanks! Background: I discussed that with with Michael Biebl. D-Bus is really hairy as you get into circular dependencies very easily (with e. g. /var or /usr on NFS), so making it start earlier could miss out some important remote mounts. What we *really* want is to say "stop D-Bus after all D-Bus clients", thus synthesize After=dbus.service to all Type=dbus services. At the moment this only implies After=dbus.socket, but restarting dbus after you already shut it down isn't working as dbus cannot save/restore its state. At this state of the release cycle I don't have the guts to completely rearchitect this. Also, stopping D-Bus in a running system isn't something which we ever supported; to the contrary, we patched several packages to avoid restarting/stopping D-Bus in postinsts, as stopping d-bus in a running system is shooting yourself into the foot (independent of which init system you use). Thus leaving D-Bus running until the bitter end should be fine, it doesn't have any file system things to do on shutdown. This also approximates the brave new kdbus world where d-bus is basically "always available". -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to dbus in Ubuntu. https://bugs.launchpad.net/bugs/1438612 Title: remote file systems hang on shutdown, D-BUS stops too early Status in dbus package in Ubuntu: Confirmed Bug description: (part of bug 1431774). During shutdown, D-Bus stops too early. In particular, it stops before NetworkManager and remote-fs.target, so that any network unmount will cause errors and hang the boot. This can be seen with $ journalctl -b -1 | egrep 'Stop.*(D-Bus|Network M|Remote F)' Mär 30 19:05:19 donald systemd[1]: Stopping D-Bus System Message Bus... Mär 30 19:05:19 donald systemd[1]: Stopped D-Bus System Message Bus. Mär 30 19:05:19 donald systemd[1]: Stopped target Remote File Systems. Mär 30 19:05:19 donald systemd[1]: Stopping Remote File Systems. Mär 30 19:05:19 donald systemd[1]: Stopped target Remote File Systems (Pre). Mär 30 19:05:19 donald systemd[1]: Stopping Remote File Systems (Pre). Mär 30 19:05:19 donald systemd[1]: Stopping Network Manager... Mär 30 19:05:42 donald systemd[1]: Stopped Network Manager. Mär 30 19:05:42 donald systemd[1]: Stopping D-Bus System Message Bus Socket. A quick workaround is to add After=dbus.service to /lib/systemd/system/NetworkManager.service's [Unit] section, but this should be fixed in a more general fashion. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/1438612/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
