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[uj__ <unclejacksons@xxxxxxxxx>]

The init process is certainly leaking memory. This can be observed by
starting a lot of Docker containers which exit right away. I'm able to
get upstart's init process to 50-100 MB of memory usage by running
5000-20000 Docker containers which only print something and then exit.

I've looked at the code and it seems like there may be some leaks. The
upstart tests are are also leaking memory. Some of that memory is leaked
in the tests themselves (allocated and never freed) and some others seem
to be leaking in libnih itself.

Ubuntu 14.04 doesn't seem to have this problem at all.

-- 
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https://bugs.launchpad.net/bugs/1198180

Title:
  possible leak in upstart 1.5

Status in “upstart” package in Ubuntu:
  Confirmed

Bug description:
  Description:    Ubuntu 12.04.2 LTS
  Release:        12.04
  Package:    1.5-0ubuntu7.2
  Kernel:      Linux XXX 3.8.0-23-generic #34~precise1-Ubuntu SMP Wed May 29 21:12:31 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

  We're starting lxc containers on demand, so there's lots and lots of
  network interfaces going up and down. Udev emits signal, that goes to
  upstart-udev-bridge, and next to the upstart itself. After about 40K
  containers created/destroyed, upstart takes about 250MB or RAM, and it
  grows with every event received/send. Not only RAM is beeing used, but
  also init spends more time for every new event on the socket.

  What happens:
  init uses more RAM and more CPU during lifetime, when lots of network interfaces are beeing created/destroyed

  What is expected:
  init work should not change depending on number of events served

  technical detail:
  # pmap -x 1
  00007f446f865000       0  237036  237036 rw---    [ anon ]
  00007fffc694d000       0      24      24 rw---    [ stack ]
  00007fffc69fe000       0       4       0 r-x--    [ anon ]
  ffffffffff600000       0       0       0 r-x--    [ anon ]

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