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[Christian Et <1316830@xxxxxxxxxxxxxxxxxx>]

Apparently, wtmp just keeps a log of _all_ logins. Removing that file
disables this logging (I have it in proftpd.log anyways) and solved my
problem!

rm /var/log/wtmp

>From man wtmp:
The wtmp file records all logins and logouts. (...)  wtmp is maintained by login(1), init(8), and some versions of getty(8) (e.g., mingetty(8) or agetty(8)).  None of these programs creates the file, so if it is removed, record-keeping is turned off.

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https://bugs.launchpad.net/bugs/1316830

Title:
  /usr/lib/accountsservice/accounts-daemon :: memory and CPU time leak

Status in accountsservice package in Ubuntu:
  Confirmed

Bug description:
  
  netikras@netikras-netbook ~/received/accountsservice-0.6.20 $ cat /etc/lsb-release 
  DISTRIB_ID=LinuxMint
  DISTRIB_RELEASE=16
  DISTRIB_CODENAME=petra
  DISTRIB_DESCRIPTION="Linux Mint 16 Petra"

  uname -a
  Linux netikras-netbook 3.11.0-12-generic #19-Ubuntu SMP Wed Oct 9 16:12:00 UTC 2013 i686 i686 i686 GNU/Linux


  
  Nothing. Using my netbook as usual. Did not really notice when this started since earlier today did not feel any significant slowdowns.

  
  That's what happened:
    PID   USER      PR  NI  VIRT  RES   SHR   S  %CPU %MEM    TIME+  COMMAND           
  13155 root      20   0 61424  25m 2948 R  99,6          1,3   1:06.01 accounts-daemon 

  
  netikras@netikras-netbook /tmp $ while :; do ps aux | grep accounts|grep -v grep;echo; sleep 2; done
  root     13155 93.6 26.1 555660 519912 pts/0   Sl   01:11   3:15 /usr/lib/accountsservice/accounts-daemon

  root     13155 92.7 26.1 555660 519912 pts/0   Sl   01:11   3:15
  /usr/lib/accountsservice/accounts-daemon

  root     13155 91.9 26.1 555660 519912 pts/0   Sl   01:11   3:15
  /usr/lib/accountsservice/accounts-daemon

  
  accounts-daemon is using lots o CPU cycles and memory. Stats above are after restarting daemon for several times. Before this memory usage was >60%; CPU - 100%.

  In file attached you should  be able to see there's a loop checking
  for something repeatedly. Not sure this is the cause though, but feels
  like it..

  
  It's the first time I've noticed this problem, but I often leave my computer running unattended so I cannot tell if it's really the first time it happened.

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