dx-packages team mailing list archive

[James Hunt <1235649@xxxxxxxxxxxxxxxxxx>]

The problem is not observed when the only connections to upstart are the
standard upstart bridges (since they use nih_dbus_connect()).

For reference, here is nih_dbus_setup() which includes one or more calls
that unity seemingly should be calling itself:

http://bazaar.launchpad.net/~ubuntu-
branches/ubuntu/saucy/libnih/saucy/view/head:/nih-
dbus/dbus_connection.c#L202

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https://bugs.launchpad.net/bugs/1235649

Title:
  uevent spam causes session upstart to consume massive amounts of
  memory on Ubuntu Touch

Status in Upstart:
  New
Status in “linux” package in Ubuntu:
  Invalid
Status in “systemd” package in Ubuntu:
  New
Status in “unity” package in Ubuntu:
  New
Status in “upstart” package in Ubuntu:
  Fix Released
Status in “linux” source package in Saucy:
  Invalid
Status in “systemd” source package in Saucy:
  New
Status in “unity” source package in Saucy:
  New
Status in “upstart” source package in Saucy:
  Fix Released

Bug description:
  using ubuntu touch image 82 i see the session init consume about 10MB per minute as long as the screen is on  with Mir.
  running the same session with surfaceflinger only consumes 1MB per minute.

  in both cases the system starts to swap heavily at some point, making
  the UI unresponsive.

  http://paste.ubuntu.com/6196223/ has the top output of a Mir session
  after 30min, the UI just got completely unresponsive when this
  snapshot was taken.

  http://paste.ubuntu.com/6196332/ is the top output of a surfaceflinger
  session where the screen was off for about 10min

  apparently the leak only occurs while the screen is on, it seems to be
  permanently there but in the case of surfaceflinger it hits less hard.

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