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[Bug 1462692] Re: Ordering cycle on NetworkManager-wait-online.service/start

 

openafs is:

ezyang@sabre:~$ aptitude show openafs-client
Package: openafs-client                  
State: installed
Automatically installed: yes
Version: 1.6.11.1-0ppa1~ubuntu15.04.1
Priority: optional
Section: net
Maintainer: Benjamin Kaduk <kaduk@xxxxxxx>
[truncated]

which is coming from the official OpenAFS stable PPA:
https://launchpad.net/~openafs/+archive/ubuntu/stable

Here's the other command output

ezyang@sabre:~$ systemctl cat screen-cleanup
# /run/systemd/generator.late/screen-cleanup.service
# Automatically generated by systemd-sysv-generator

[Unit]
Documentation=man:systemd-sysv-generator(8)
SourcePath=/etc/init.d/screen-cleanup
Description=LSB: screen sessions cleaning
DefaultDependencies=no
Before=sysinit.target
After=remote-fs.target

[Service]
Type=forking
Restart=no
TimeoutSec=0
IgnoreSIGPIPE=no
KillMode=process
GuessMainPID=no
RemainAfterExit=yes
ExecStart=/etc/init.d/screen-cleanup start
ExecStop=/etc/init.d/screen-cleanup stop

ezyang@sabre:~$ dpkg -S screen-cleanup.service init.d/screen-cleanup
dpkg-query: no path found matching pattern *screen-cleanup.service*
screen: /etc/init.d/screen-cleanup

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https://bugs.launchpad.net/bugs/1462692

Title:
  Ordering cycle on NetworkManager-wait-online.service/start

Status in systemd package in Ubuntu:
  Incomplete

Bug description:
  I recently rebooted my computer, and NetworkManager didn't come
  online.  Snooping dmesg revealed the problem:

  [   16.371556] systemd[1]: Breaking ordering cycle by deleting job network.target/start
  [   16.371561] systemd[1]: Job network.target/start deleted to break ordering cycle starting with network-online.target/start
  [   16.371722] systemd[1]: Found ordering cycle on NetworkManager-wait-online.service/start
  [   16.371727] systemd[1]: Found dependency on NetworkManager.service/start
  [   16.371732] systemd[1]: Found dependency on basic.target/start
  [   16.371736] systemd[1]: Found dependency on sockets.target/start
  [   16.371739] systemd[1]: Found dependency on cups.socket/start
  [   16.371743] systemd[1]: Found dependency on sysinit.target/start
  [   16.371747] systemd[1]: Found dependency on screen-cleanup.service/start
  [   16.371751] systemd[1]: Found dependency on remote-fs.target/start
  [   16.371754] systemd[1]: Found dependency on openafs-client.service/start
  [   16.371758] systemd[1]: Found dependency on network-online.target/start
  [   16.371762] systemd[1]: Found dependency on NetworkManager-wait-online.service/start
  [   16.371766] systemd[1]: Breaking ordering cycle by deleting job NetworkManager.service/start
  [   16.371771] systemd[1]: Job NetworkManager.service/start deleted to break ordering cycle starting with NetworkManager-wait-online.service/start

  Manually running `sudo systemctl start NetworkManager` brought it back
  online. But there shouldn't be an ordering cycle!

  The problem seems to be that sockets wants cups, and then through a
  hilarious chain of events we hit openafs-client which obviously needs
  network. So for some reason, wants constraints are being honored too
  strictly.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: systemd 219-7ubuntu5
  ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
  Uname: Linux 3.19.0-18-generic x86_64
  NonfreeKernelModules: openafs
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  Date: Sat Jun  6 15:49:54 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2013-11-21 (562 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: LENOVO 7762K3U
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-18-generic root=/dev/mapper/hostname-root ro quiet splash vt.handoff=7
  SourcePackage: systemd
  UpgradeStatus: Upgraded to vivid on 2015-05-29 (8 days ago)
  dmi.bios.date: 02/21/2008
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7SET25WW (1.11 )
  dmi.board.name: 7762K3U
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr7SET25WW(1.11):bd02/21/2008:svnLENOVO:pn7762K3U:pvrThinkPadX61Tablet:rvnLENOVO:rn7762K3U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 7762K3U
  dmi.product.version: ThinkPad X61 Tablet
  dmi.sys.vendor: LENOVO

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References