touch-packages team mailing list archive

[Oliver Grawert <ogra@xxxxxxxxxx>]

if the dash would not be in lifecycle management at all and you would
have gotten your system in such a state, the kernel would just have
randomly killed bits of your session instead of the dash.

it is wanted that in such cases the dash gets killed before i.e. ofono gets killed so that your session still stays functional. 
imho the behavior is just fine, in case the sysem functions normal it should be the last of your UI apps that gets killed. 
in case where not even that would free up enough memory you have a whole lot of bigger probs ... the bug here lies within the apps that consume all your ram where they should not.

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https://bugs.launchpad.net/bugs/1379296

Title:
  unity8-dash should be excluded from app lifecycle management

Status in “qtmir” package in Ubuntu:
  Fix Released
Status in “unity8” package in Ubuntu:
  Invalid
Status in “qtmir” package in Ubuntu RTM:
  New

Bug description:
  STEPS:
  1. Install the BBC NEWS app from the store
  2. Go back to the apps scope
  3. Open the bbc app browse about a bit
  4. Click on a video link
  5. let it play for a while
  6. Cycle back to the scopes
  Scopes then restarts

  
  having a lot of apps open my unity8-dash gets contantly killed along the apps if a certain OOM threshold is reached ... this appears like a system crash of the UI (even though it is desired killing) from a user perspective ...

  checking the oom_score_adj values of all running apps i see that the
  dash has the same high value as all other open foreground apps:

  ...
  11	7960	oxide-renderer
  11	7963	oxide-renderer
  11	7988	oxide-renderer
  300	6170	oxide-renderer
  802	12514	unity8-dash
  802	6088	webbrowser-app
  802	6873	webapp-containe
  802	7425	webapp-containe
  802	7910	webapp-containe

  (the full log can be found at http://paste.ubuntu.com/8526308/ ) given
  that the dash is one part of our core UI it should be excluded from
  app lifecycle management (keeping the same oom_score of 10 as unity8
  does) so that only actual apps get killed on high memory pressure.

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