[Bug 1804603] Re: systemd-tmpfiles-setup.service fails

[Rene Meier]

I did some tests. This issue is clearly related to btrfs, because I can not reproduce this with ext4. If you have a different filesystem, you have a different issue, maybe the one in https://launchpad.net/bugs/1804847.
How to reproduce this:
1) clean install from 'ubuntu-18.04.1-live-server-amd64.iso', all settings default but change root filesystem to btrfs.
2) system starts fine after reboot
3) issue 'apt install systemd' and get the 'Bad file descriptor' error allready during installation (attached log)
4) reboot with failing systemd-tmpfiles-setup.service

I will also attach a log of the errors during apt install.

** Summary changed:

- systemd-tmpfiles-setup.service fails
+ systemd-tmpfiles-setup.service fails on btrfs

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https://bugs.launchpad.net/bugs/1804603

Title:
  systemd-tmpfiles-setup.service fails on btrfs

Status in systemd package in Ubuntu:
  Confirmed

Bug description:
  After update to systemd 237-3ubuntu10.9 systemd-tmpfiles-setup.service
  fails with:

  Nov 21 13:44:12 node-blc49 systemd[1]: Starting Create Volatile Files and Directories...
  Nov 21 13:44:12 node-blc49 systemd-tmpfiles[1226]: Failed to create directory or subvolume "/var": Bad file descriptor
  Nov 21 13:44:12 node-blc49 systemd-tmpfiles[1226]: Failed to create directory or subvolume "/home": Bad file descriptor
  Nov 21 13:44:12 node-blc49 systemd-tmpfiles[1226]: Failed to create directory or subvolume "/srv": Bad file descriptor
  Nov 21 13:44:12 node-blc49 systemd[1]: systemd-tmpfiles-setup.service: Main process exited, code=exited, status=1/FAILURE
  Nov 21 13:44:12 node-blc49 systemd[1]: systemd-tmpfiles-setup.service: Failed with result 'exit-code'.
  Nov 21 13:44:12 node-blc49 systemd[1]: Failed to start Create Volatile Files and Directories.

  This happens on btrfs root filesystems in real hardware and on our
  virtualized servers as well. 237-3ubuntu10.6 didnt show this errors
  and going back to 237-3ubuntu10 removes them as well.

  # lsb_release -rd
  Description:    Ubuntu 18.04.1 LTS
  Release:        18.04

  # apt-cache policy systemd
  systemd:
    Installiert:           237-3ubuntu10.9
    Installationskandidat: 237-3ubuntu10.9
    Versionstabelle:
   *** 237-3ubuntu10.9 500
          500 http://de.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
          100 /var/lib/dpkg/status
       237-3ubuntu10 500
          500 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

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