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@lab-netvista:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.5 LTS Release: 14.04 Codename: trusty -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lxc in Ubuntu. 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cgmanager/+bug/1303649/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
