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[bmaupin <kwakubm@xxxxxxxxx>]

I looked into those dbus messages and didn't find anything helpful. My
system is fully up to date and I still have this issue.

Here's my current workaround:

sudo sh -c 'echo "#!/bin/bash

/usr/bin/killall /usr/lib/policykit-1/polkitd" > /etc/cron.daily/kill-polkitd'
sudo chmod +x /etc/cron.daily/kill-polkitd

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https://bugs.launchpad.net/bugs/1470235

Title:
  PolicyKit high memory usage

Status in policykit-1 package in Ubuntu:
  Confirmed

Bug description:
  Periodically I install updates on my computer and reboot without
  logging in. When I come back to my computer and log in, polkitd is
  using a large chunk of memory. At the moment it's using > 2.3 GiB of
  memory on a machine with 8 GB RAM:

  $ ps aux | grep polkit
  root      1229  0.4 29.8 2652532 2420916 ?     Sl   Jun19  67:38 /usr/lib/policykit-1/polkitd --no-debug

  Killing the process frees the memory until I reboot again.

  
  I'm currently using the latest version of policykit-1:

  $ apt-file search /usr/lib/policykit-1/polkitd
  policykit-1: /usr/lib/policykit-1/polkitd

  $ apt-cache policy policykit-1
  policykit-1:
    Installed: 0.105-4ubuntu2.14.04.1
    Candidate: 0.105-4ubuntu2.14.04.1
    Version table:
   *** 0.105-4ubuntu2.14.04.1 0
          500 http://ca.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       0.105-4ubuntu2 0
          500 http://ca.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

  $ sudo apt-get upgrade policykit-1
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Calculating upgrade... Done
  policykit-1 is already the newest version.

  
  Other information:

  $ lsb_release -rd
  Description:	Ubuntu 14.04.2 LTS
  Release:	14.04

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: policykit-1 0.105-4ubuntu2.14.04.1
  ProcVersionSignature: Ubuntu 3.16.0-41.55~14.04.1-generic 3.16.7-ckt11
  Uname: Linux 3.16.0-41-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.14.1-0ubuntu3.11
  Architecture: amd64
  Date: Tue Jun 30 16:14:51 2015
  InstallationDate: Installed on 2014-08-25 (309 days ago)
  InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723)
  ProcEnviron:
   LANGUAGE=en_CA:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: policykit-1
  UpgradeStatus: No upgrade log present (probably fresh install)

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