[Bug 1303649] Re: systemd-logind spins in cgmanager_ping_sync()

[Cameron Paine]

FWIW I'm experiencing similar symptoms on an ancient desktop that has
been stable, reliable and used every day for years. I too ran dist-
upgrade a couple of days ago. I've no idea what repos I use. That config
hasn't been touched for a long time. Can investigate if the information
might be useful.

$ top -b -n 1 | head
top - 19:17:12 up 1 day, 11:17,  2 users,  load average: 1.74, 1.65, 1.96
Tasks: 191 total,   2 running, 189 sleeping,   0 stopped,   0 zombie
%Cpu(s): 47.8 us, 51.4 sy,  0.3 ni,  0.3 id,  0.1 wa,  0.0 hi,  0.1 si,  0.0 st
KiB Mem:   1025144 total,   720844 used,   304300 free,   171616 buffers
KiB Swap:  1048572 total,    30508 used,  1018064 free.   190468 cached Mem

  PID USER      PR  NI    VIRT    RES    SHR S %CPU %MEM     TIME+ COMMAND
  353 root      20   0    3076   1172   1068 R 31.6  0.1 922:38.21 cgmanager
  892 root      20   0    4216   1344   1248 S 31.6  0.1 911:28.89 systemd-logind
 1539 root      20   0   89256  37060  14232 S  7.9  3.6  45:56.98 Xorg
$ uname -a
Linux lab-netvista 3.13.0-87-generic #133-Ubuntu SMP Tue May 24 18:33:01 UTC 2016 i686 i686 i686 GNU/Linux
zaphod at lab-netvista:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 14.04.5 LTS
Release:	14.04
Codename:	trusty

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https://bugs.launchpad.net/bugs/1303649

Title:
  systemd-logind spins in cgmanager_ping_sync()

Status in cgmanager package in Ubuntu:
  Invalid
Status in libnih package in Ubuntu:
  Invalid
Status in lxc package in Ubuntu:
  Fix Released
Status in systemd package in Ubuntu:
  Fix Released

Bug description:
  systemd-logind is consuming a high level of cpu on a continual basis:

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                                                
    676 root      20   0   43644   2144   1568 R 100.0  0.0  74:43.77 systemd-logind

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: systemd-services 204-5ubuntu17
  ProcVersionSignature: Ubuntu 3.13.0-22.44-generic 3.13.8
  Uname: Linux 3.13.0-22-generic x86_64
  ApportVersion: 2.14.1-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Apr  7 09:09:37 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2013-04-23 (348 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423)
  SourcePackage: systemd
  UpgradeStatus: Upgraded to trusty on 2013-11-11 (146 days ago)

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