1386313 - [Try build] Jenga WebGL cannot be played if the webpage is refreshed 3-4 times

Status: NEW

(Core :: Graphics: CanvasWebGL, defect, P3)

Description

[Vlad Bacia-Mociran [:VladB]]

User Agent: Mozilla/5.0 (Windows NT 10.0; rv:56.0) Gecko/20100101 Firefox/56.0
Build ID: 20170801011416
System: Windows 10 x86, 3GB of RAM

[Notes]:
- This issue is only reproducible on the Firefox beta try build 20170801011416
- This issue is not reproducible on latest Nightly.

[Steps]:
1. Open try build browser and open a new tab.
2. Go to http://chandlerprall.github.io/Physijs/examples/jenga.html.
3. play the game and Refresh the page after it ended.
4. Repeat this 3-4 times

[Expected results]:
- The game can be played without issues.

[Actual results]:
- After 3-4 page refreshes the game cannot be played anymore and the browser becomes sluggish. 

[Additional Notes]:
- In the browser console there is the following error:
THREE.WebGLRenderer 60  three.min.js:416
uncaught exception: out of memory  (unknown)

Performance profile: https://perfht.ml/2tZITq0 . Maybe it will be of help.

Comment 1

[Ryan VanderMeulen [:RyanVM]]

Can you please see if the below two builds reproduce as well? These are "real" 56 Beta builds now that Gecko 56 has been merged from m-c to beta.

Win32: https://queue.taskcluster.net/v1/task/Wf0khHJvRcK0FTJu_IgyEQ/runs/0/artifacts/public/build/target.zip
Win64: https://queue.taskcluster.net/v1/task/Jnoy1CaYSXa7E5yGwjXxmg/runs/0/artifacts/public/build/target.zip

Comment 2

[Vlad Bacia-Mociran [:VladB]]

I can confirm that the issue is reproducible with both builds from comment 2.

Comment 3

[Ryan VanderMeulen [:RyanVM]]

I wonder if this is related to the CI issues affecting Beta at the moment.

Comment 4

[Milan Sreckovic [:milan] (needinfo for best results)]

Are these CI issues resolved now?

Comment 5

[Ryan VanderMeulen [:RyanVM]]

Yes, the issues in comment 3 were referencing the problems that were solved by turning off async pref saving.