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[bmaupin <kwakubm@xxxxxxxxx>]

A couple more data points:

Last week, I rebooted my machine and logged in right away. polkitd was
only using 7 MB of memory:

$ ps aux | grep polkitd | grep -v grep
root      1219  0.1  0.0 281164  7244 ?        Sl   16:36   0:00 /usr/lib/policykit-1/polkitd --no-debug

Two days later, polkitd was using only marginally more memory:

$ uptime
 17:08:55 up 2 days, 32 min,  2 users,  load average: 1.42, 0.78, 0.37
$ ps aux | grep polkitd | grep -v grep
root      1219  0.0  0.0 291208  7664 ?        Sl   Jun30   0:00 /usr/lib/policykit-1/polkitd --no-debug

On Friday, I installed updates and then rebooted without logging in.
This morning, before logging in, polkitd was already using nearly 1 GB
of memory:

$ uptime
 09:09:38 up 3 days, 15:57,  1 user,  load average: 0.06, 0.05, 0.05
$ ps aux | grep polkitd | grep -v grep
root      1034  0.4 11.2 1137788 912732 ?      Sl   Jul02  23:23 /usr/lib/policykit-1/polkitd --no-debug
$ date
Mon Jul  6 09:11:17 EDT 2015

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Packages, which is subscribed to policykit-1 in Ubuntu.
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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