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

[Jurit]

Does it fixes also bionic with ext4? If yes, how?  
Problem starting some services since november updates

Now I installed these last upgrades with 237-3ubuntu10.11 but this didnt
fix error...

● systemd-tmpfiles-setup-dev.service  loaded failed failed    Create Static Device Nodes in /dev                                           
● systemd-tmpfiles-setup.service      loaded failed failed    Create Volatile Files and Directories   

Description:	Ubuntu 18.04.1 LTS
Release:	18.04
systemd:
  Installed: 237-3ubuntu10.11
  Candidate: 237-3ubuntu10.11
  Version table:
 *** 237-3ubuntu10.11 500
        500 http://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://archive.ubuntu.com/ubuntu bionic/main amd64 Packages

Filesystem     Type      1K-blocks       Used Available Use% Mounted on
udev           devtmpfs    8173584          0   8173584   0% /dev
tmpfs          tmpfs       1640840       2672   1638168   1% /run
/dev/sda3      ext4      102687672    5534228  91894180   6% /
tmpfs          tmpfs       8204192          0   8204192   0% /dev/shm
tmpfs          tmpfs          5120          0      5120   0% /run/lock
tmpfs          tmpfs       8204192          0   8204192   0% /sys/fs/cgroup
/dev/md0       ext4     5325203376 4998238260  58519832  99% /phototdata
/dev/loop1     squashfs      91648      91648         0 100% /snap/core/6130
/dev/loop0     squashfs      90368      90368         0 100% /snap/core/5897
/dev/loop2     squashfs      91648      91648         0 100% /snap/core/6034
tmpfs          tmpfs       1640836          0   1640836   0% /run/user/0

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

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

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Bionic:
  Fix Released
Status in systemd source package in Cosmic:
  Fix Released
Status in systemd source package in Disco:
  Fix Released

Bug description:
  [Impact]

   * Last security update introduced a regression on btrfs based systems, causing systemd-tmpfiles-setup.service to fail to start, resulting in degraded machines.
   * Cherrypick upstream fixes to resolve this.

  [Test Case]

   * Install VM using btrfs for /
   * Boot, check that systemd-tmpfiles-setup.service is started successfully with:
  $ systemctl status systemd-tmpfiles-setup.service

  [Regression Potential]

   * btrfs fd doesn't support the set of flags that systemd used, with
  this patch, a compat set of flags is set instead, thus resolving the
  introduced regression. The worst case scenario is that creating
  subvolumes/directories is still broken (as in, the current status
  quo).

  [Other Info]
   
   * Example bad output

  
  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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