Powerd does not release locks requested over dbus when name goes away

[Sergio Schvezov]

powerd: 0.13+14.04.20140129-0ubuntu1

The scenario would be:
- check locks
- play a tune with the music app
- check locks (a lock requested by an anonymous name should show up)
- close music
- check locks (the anonymous name should go away)

This should be maked as critical as it drains battery.

This is easily reproduceable with the music app

root@ubuntu-phablet:/# ps -ef|grep music |grep -v scope
root 4778 4347 0 09:22 pts/31 00:00:00 grep --color=auto music
root@ubuntu-phablet:/# powerd-cli stats
System Request Statistics:
                                        Active Max Active
  Owner Name Count Active Time Time Active Since
  internal display-request 1 59.993644 59.993644 0.000000
Display Request Statistics:
                                        Active Max Active Display On Display On Flag 0 Flag 0 Flag 1 Flag 1 Flag 2 Flag 2
  Owner Name Count Active Time Time Active Since Time Since On Time On Since On Time On Since On Time On Since
  internal activity-timer 1 59.776911 59.776911 0.000000 59.776911 0.000000 0.000000 0.000000 0.000000 0.000000 44.789634 0.000000
root@ubuntu-phablet:/# ps -ef|grep music |grep -v scope
phablet 4962 1661 87 09:22 ? 00:00:05 /usr/lib/arm-linux-gnueabihf/qt5/bin/qmlscene music-app.qml --file=/home/phablet/Music/14-still_with_me_feat._cristina_soto-seven_lions_remix.mp3 -I ./plugins
root 5064 4347 0 09:22 pts/31 00:00:00 grep --color=auto music
root@ubuntu-phablet:/# powerd-cli stats
System Request Statistics:
                                        Active Max Active
  Owner Name Count Active Time Time Active Since
  internal display-request 2 78.068896 59.993644 204.477546
  :1.60 4962-background 1 4.907990 4.907990 217.644839
Display Request Statistics:
                                        Active Max Active Display On Display On Flag 0 Flag 0 Flag 1 Flag 1 Flag 2 Flag 2
  Owner Name Count Active Time Time Active Since Time Since On Time On Since On Time On Since On Time On Since
  internal activity-timer 2 77.854942 59.776911 204.477851 77.854942 204.477851 0.000000 0.000000 0.000000 0.000000 62.867665 204.477851
root@ubuntu-phablet:/# ps -ef|grep music |grep -v scope
root 5271 4347 0 09:22 pts/31 00:00:00 grep --color=auto music
root@ubuntu-phablet:/# powerd-cli stats
System Request Statistics:
                                        Active Max Active
  Owner Name Count Active Time Time Active Since
  internal display-request 2 90.312365 59.993644 204.477546
  :1.60 4962-background 1 11.347066 11.347066 0.000000
Display Request Statistics:
                                        Active Max Active Display On Display On Flag 0 Flag 0 Flag 1 Flag 1 Flag 2 Flag 2
  Owner Name Count Active Time Time Active Since Time Since On Time On Since On Time On Since On Time On Since
  internal activity-timer 2 90.098167 59.776911 204.477851 90.098167 204.477851 0.000000 0.000000 0.000000 0.000000 75.110890 204.477851

[Ricardo Salveti (rsalveti)]

Can't reproduce this issue with current image.

Use powerd-cli list to get the active locks, and you'll see that the one for media-hub goes away after you close down the app.

[Launchpad Janitor (janitor)]

[Expired for powerd (Ubuntu) because there has been no activity for 60 days.]