[Bug 1706990] Re: With samba installed on Kubuntu 17.04, nmbd.service causes a 10 second boot time regression

[Nate Graham]

I really appreciate your willingness to work with me on this issue,
Andreas! On second look, it appears that only sometimes does something
else start a new daemon:

Jul 31 15:40:35 Spectre systemd[1]: Starting Samba NMB Daemon...
Jul 31 15:40:35 Spectre systemd[1]: nmbd.service: Supervising process 20023 which is not our child. We'll most likely not notice when it exits.
Jul 31 15:40:35 Spectre systemd[1]: Started Samba NMB Daemon.


And sometimes it's able to re-use the existing one:

Jul 31 15:40:15 Spectre systemd[1]: Starting Samba NMB Daemon...
Jul 31 15:40:15 Spectre systemd[1]: Started Samba NMB Daemon.


Regardless, I only see the 10-second delay on boot. Maybe it's waiting
for that other process to start the daemon?

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Title:
  With samba installed on Kubuntu 17.04, nmbd.service causes a 10 second
  boot time regression

Status in samba package in Ubuntu:
  Incomplete

Bug description:
  I'm running Kubuntu 17.04. After installing Samba rsion 2:4.5.8+dfsg-
  0ubuntu0.17.04.4), my boot time has regressed from about 12 seconds to
  23 seconds. `systemd-blame` shows that the culprit is the nmbd
  service:

  $ systemd-analyze blame | head -n 5
           10.017s nmbd.service
            8.008s apt-daily.service
            3.010s iio-sensor-proxy.service
             561ms dev-nvme0n1p2.device
             554ms NetworkManager-wait-online.service


  The nmbd systemd logs show that the 10 seconds is spent looking for a
  non-child nmb process:

  $ systemctl status nmbd.service | tail -n 3
  Jul 26 19:49:24 Spectre systemd[1]: Starting Samba NMB Daemon...
  Jul 26 19:49:24 Spectre systemd[1]: nmbd.service: Supervising process 1091 which is not our child. We'll most likely not notice when it exits.
  Jul 26 19:49:34 Spectre systemd[1]: Started Samba NMB Daemon.

  
  If I uninstall samba, the problem disappears.

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