upstart

  1. Bug #1357252
  2. Comment #3

Comment 3 for bug 1357252

Revision history for this message
James Hunt (jamesodhunt) wrote : Re: "Application failed to start." during autopilot tests after the newest ubuntu-app-launch landing

Currently, there is a minor bug whereby if upstart is running in debug mode and trying to start a job that uses the 'cgroup' stanza will dump cgroup debug details into the jobs log [1].

This could be useful here though since it should be possible to either boot the session init in debug mode and see what turns up in ~/.cache/upstart/*.log. I've attached a patch to enable debug mode at session init startup but you can always enable at any time using 'initctl log-priority debug'.

It would also be worth enabling debug mode for cgmanager by tweaking /etc/init/cgmanager.conf and setting 'cgmanager_opts="--debug"' in that file as shown (or simply creating /etc/init/cgmanager.override containing 'env cgmanager_opts="--debug"'.

[1] - MP to resolve this is: https://code.launchpad.net/~jamesodhunt/upstart/make-cgroups-quiet-in-debug-mode/+merge/230762