1530720 - [ARM64] Water WebGL demo crashes at launch on aarch64 build

Status: RESOLVED WORKSFORME

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

Description

[Daniel Bodea [:danibodea]]

Note

• Tab instantly crashes when opening a WebGL water demo website.

Affected versions

• Nightly v67.0a1 (64-bit) (aarch64 build)
• Beta v66.0b11 (64-bit) (aarch64 build)

Affected platforms

• Windows 10 v1803 on Lenovo Yoga

Steps to reproduce

1. Open http://madebyevan.com/webgl-water/
2. Follow through the menu, log in with Guest and reach the actual game-play.

Expected result

• The web application is loaded and functions correctly.

Actual result

• The tab crashes.

Additional notes

• This issue does not occur on the non-aarch64 build, including the normal 32-bit build running on Lenovo Yoga, ARM laptop.
• This water demo works PERFECTLY on Nightly 32-bit (non-aarch build, generic build) on Lenovo Yoga with ARM processor, while it flickers severely on my desktop station (which is a considerably faster system than Yoga) and crashes any aarch64 build at launch.

Comment 1

[Kelsey Gilbert [:jgilbert]]

Can you link to the crash report?

Comment 2

[Daniel Bodea [:danibodea]]

This issue reproduces on Build ID: 20190227202322 and this is the crash report:
https://crash-stats.mozilla.org/report/index/b1ecc48b-1f71-4098-8e49-9323f0190301

The crash does NOT occur on the latest, Build ID: 20190301012442.

Please tell me if you need more investigation. Thanks.

Comment 3

[Daniel Bodea [:danibodea]]

This issue does not reproduce anymore.
Tested on aarch64 builds on Lenovo Yoga, Nightly v67.0a1 from 2019-03-12, Beta v66.0b14 and RC v65.0.
Marking as WORKSFORME.

Comment 4

[Pascal Chevrel:pascalc (PTO until April 26)]

FYI, the crash report in comment #2 is already tracked by bug 1515387 which is not fixed yet, should this bug be duped to that one?