Ubuntu
qtmir package

Apps do not start if restarted quickly after closing

Bug #1527737 reported by Pat McGowan
46
This bug affects 10 people
Affects Status Importance Assigned to Milestone
Canonical System Image
Confirmed
High
Michał Sawicz
Canonical System Image backlog
qtmir (Ubuntu)
Confirmed
High
Daniel d'Andrada
qtubuntu (Ubuntu)
Fix Released
High
Daniel d'Andrada

Bug Description

rc-proposed

Close a running app and as quickly as possible open it again from the click scope
the app will crash much of the time

This happens on all apps I tried (dialer, messages, contacts, camera)
This does not occur in OTA 8.5
First noticed on 12/17

I generally do not see a crash file although the first time I got one for contacts and the spinner

See original description

Related branches

lp:~dandrader/qtubuntu/offscreenSurface-lp1527737
Gerry Boland (community): Approve
PS Jenkins bot: Approve (continuous-integration)
Diff: 206 lines (+120/-8)
6 files modified
src/ubuntumirclient/glcontext.cpp (+21/-8)
src/ubuntumirclient/integration.cpp (+7/-0)
src/ubuntumirclient/integration.h (+2/-0)
src/ubuntumirclient/offscreensurface.cpp (+47/-0)
src/ubuntumirclient/offscreensurface.h (+41/-0)
src/ubuntumirclient/ubuntumirclient.pro (+2/-0)
lp:~dandrader/qtmir/appRestart-lp1527737
On hold for merging into lp:qtmir
Michael Zanetti (community): Abstain
Unity8 CI Bot (community): Approve (continuous-integration)
Michał Sawicz: Needs Fixing
Nick Dedekind (community): Approve
PS Jenkins bot: Pending (continuous-integration) requested
Gerry Boland: Pending requested
Diff: 472 lines (+271/-63)
7 files modified
src/modules/Unity/Application/application_manager.cpp (+81/-61)
src/modules/Unity/Application/application_manager.h (+1/-1)
src/modules/Unity/Application/taskcontroller.h (+5/-1)
src/modules/Unity/Application/upstart/taskcontroller.cpp (+8/-0)
src/modules/Unity/Application/upstart/taskcontroller.h (+2/-0)
tests/framework/mock_task_controller.h (+1/-0)
tests/modules/ApplicationManager/application_manager_test.cpp (+173/-0)
Revision history for this message
Pat McGowan (pat-mcgowan) wrote :
no longer affects: qtmir
Changed in canonical-devices-system-image:
assignee: nobody → Michał Sawicz (saviq)
importance: Undecided → High
milestone: none → ww02-2016
status: New → Confirmed
description: updated
Pat McGowan (pat-mcgowan)
summary: - Apps crash if restarted quickly after closing
+ Apps do not start if restarted quickly after closing
description: updated
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in qtmir (Ubuntu):
status: New → Confirmed
Revision history for this message
Victor Thompson (vthompson) wrote :

I first noted this issue on Dec 14 [1] if that helps determine what caused this regression.

This is my system info from the link:

phablet@ubuntu-phablet:~/.cache/upstart$ system-image-cli -i
current build number: 186
device name: mako
channel: ubuntu-touch/rc-proposed/bq-aquaris.en
last update: 2015-12-14 18:07:29
version version: 186
version ubuntu: 20151214
version device: 20150911
version custom: mako-1.1

1 - https://code.launchpad.net/~gang65/ubuntu-clock-app/ubuntu-clock-app-slider-fix/+merge/280119/comments/710885

Michał Sawicz (saviq)
Changed in canonical-devices-system-image:
status: Confirmed → Triaged
Changed in qtmir (Ubuntu):
status: Confirmed → Triaged
importance: Undecided → High
Daniel d'Andrada (dandrader)
Changed in qtmir (Ubuntu):
assignee: nobody → Daniel d'Andrada (dandrader)
status: Triaged → In Progress
Revision history for this message
Daniel d'Andrada (dandrader) wrote :

There was a bad merge in the polite-close branch (revision 424 "Politely asks processes to close before resorting to killing Fixes: #1434584") which made ApplicationManager::stopApplication() call application->close() twice.

Pat McGowan (pat-mcgowan)
Changed in canonical-devices-system-image:
status: Triaged → In Progress
Revision history for this message
Daniel d'Andrada (dandrader) wrote :

What's happening is that the *same* application instance (ie process id) you previously closed creates a brand new window when you tap on its icon. I don't know yet why...

Some background info:
An application process is not terminated as soon as you swipe its window away from the apps spread but it's given some time to exit cleanly by itself. So having it hanging around by the time you tap on its icon is normal.

Daniel d'Andrada (dandrader)
Changed in qtubuntu:
assignee: nobody → Daniel d'Andrada (dandrader)
status: New → In Progress
importance: Undecided → High
Revision history for this message
Andrea Bernabei (faenil) wrote :

Still happens on r228 rc-proposed, krillin device

here's the log from unity8
http://pastebin.ubuntu.com/14504072/

What I did in the session described by that log:
- Open Tagger
- Close it while it was showing its splashscreen
- Open it again
- Close it while it was loading the "Scan" screen
- Open it again

at that point it showed the splashscreen for a moment, then the splashscreen disappeared as if I never launched the app.

Jean-Baptiste Lallement (jibel)
Changed in canonical-devices-system-image:
milestone: ww02-2016 → ww04-2016
Pat McGowan (pat-mcgowan)
Changed in canonical-devices-system-image:
milestone: ww04-2016 → ww08-2016
Michał Sawicz (saviq)
Changed in canonical-devices-system-image:
milestone: ww08-2016 → 11
Daniel d'Andrada (dandrader)
Changed in qtubuntu:
status: In Progress → Fix Released
Changed in qtmir (Ubuntu):
status: In Progress → Triaged
Revision history for this message
Pat McGowan (pat-mcgowan) wrote :

I cannot reproduce this so assuming its really fixed

Changed in canonical-devices-system-image:
status: In Progress → Fix Committed
Pat McGowan (pat-mcgowan)
Changed in canonical-devices-system-image:
status: Fix Committed → Fix Released
Revision history for this message
Daniel d'Andrada (dandrader) wrote :

Bug is still there actually.

Changed in qtmir (Ubuntu):
status: Triaged → In Progress
Jean-Baptiste Lallement (jibel)
Changed in canonical-devices-system-image:
status: Fix Released → In Progress
milestone: 11 → backlog
Revision history for this message
Richard Somlói (ricsipontaz) wrote :

bq Aquaris E4.5 (krillin) - OTA-12:

Here's the relevant part of the Unity8 log, I hope it would help. :)

Revision history for this message
Andrea Bernabei (faenil) wrote :

I confirm this is happening again on my krillin on latest rc-proposed, r416

Michał Sawicz (saviq)
affects: qtubuntu → qtubuntu (Ubuntu)
Daniel d'Andrada (dandrader)
Changed in qtmir (Ubuntu):
status: In Progress → Triaged
Changed in canonical-devices-system-image:
status: In Progress → Confirmed
Changed in qtmir (Ubuntu):
status: Triaged → Confirmed
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