Webgl fails as of the latest Canary 1032258

[pjpreilly]

Describe the bug

Webgl doesn't work on the latest canary build 1032258 ONLY. Works on all other Canary & Stable builds.

Steps to reproduce the behavior:

1. Go to https://webglsamples.org/aquarium/aquarium.html
2. See error

Expected behavior Fish swimming

Desktop (please complete the following information): macOS X Lion macbook 3,1 & macbook 4,1

[pjpreilly]

Webgl gpu.pdf

chrome://gpu/

[Wowfunhappy]

GPU process was unable to boot: GPU process crashed too many times with SwiftShader.

Is there a crash log from the GPU process?

[pjpreilly]

GPU process was unable to boot: GPU process crashed too many times with SwiftShader.

Is there a crash log from the GPU process?

Not one that is repeatable by loading the page.

[Wowfunhappy]

Not one that is repeatable by loading the page.

What about from when you first launch Chromium? If Chromium is disabling Swiftshader at launch, you presumably won't see a crash after launch.

[pjpreilly]

This from the Aquarium website.....

[pjpreilly]

What about from when you first launch Chromium? If Chromium is disabling Swiftshader at launch, you presumably won't see a crash after launch.

Crash.txt

[pjpreilly]

What about from when you first launch Chromium? If Chromium is disabling Swiftshader at launch, you presumably won't see a crash after launch.

I'm not sure the crash is necessarily related because it starts up with webgl disabled well before I try to run any...so.....

[Wowfunhappy]

[24554:771:0809/134544.232532:ERROR:gl_implementation.cc(504)] Failed to load /Applications/Chromium.app/Contents/Frameworks/Chromium Framework.framework/Versions/106.0.5223.0/Libraries/libEGL.dylib: dlopen(/Applications/Chromium.app/Contents/Frameworks/Chromium Framework.framework/Versions/106.0.5223.0/Libraries/libEGL.dylib, 1): Library not loaded: /System/Library/Frameworks/Metal.framework/Versions/A/Metal
  Referenced from: /Applications/Chromium.app/Contents/Frameworks/Chromium Framework.framework/Versions/106.0.5223.0/Libraries/libEGL.dylib
  Reason: image not found

Well, uh, that would do it. Why does a software renderer require metal?!

[Wowfunhappy]

Replacing Chromium.app/Contents/Frameworks/Chromium Framework.framework/Versions/106.0.5223.0/Libraries/libEGL.dylib with the version from Chromium 104 (attached for convenience) fixes the problem, at least on 10.9.5.

Chromium 104 libEGL.dylib.zip

[pjpreilly]

Replacing Chromium.app/Contents/Frameworks/Chromium Framework.framework/Versions/106.0.5223.0/Libraries/libEGL.dylib with the version from Chromium 104 (attached for convenience) fixes the problem, at least on 10.9.5.

& Lion too..... I'm assuming this will be incorporated for future builds......thx... good work Columbo @Wowfunhappy

[pjpreilly]

But I still get gpu crashes that are unrelated....here it is Columbo..... Still Crashes.txt

[pjpreilly]

@Wowfunhappy should I open a new bug report..... for Still Crashes crash instance....

[Wowfunhappy]

@pjpreilly Personally, I'd wait until a stable build to confirm. We also might want this issue to be fixed first, in case swapping with an old libEGL library is what's causing the crash.

[pjpreilly]

If I go back to stable & can cause it...maybe then....

[aeiouaeiouaeiouaeiouaeiouaeiou]

I always thought that WebGL never worked on these Chromium builds.

[Wowfunhappy]

WebGL works, it's just done in software instead of hardware! (AIUI some small portion is also hardware accelerated in 10.9, just not "gpu compositing", I don't entirely understand what that means.)

[pjpreilly]

Run this... https://webglreport.com/ Webgl 1 and Webgl 2

[pjpreilly]

@Wowfunhappy on another topic... should I open a new bug report for an iSight regression that works in Stable but now fails in Canary?

[Wowfunhappy]

@pjpreilly If it were me, I'd test if the webcam was broken in the closest available build of Chrome Canary first, to confirm it was a Chromium Legacy issue.

[pjpreilly]

Closest to what....Canary closest to current Stable....or just go step by step back revisions in Canary until the works/breaks rev boundary is found....?

[Wowfunhappy]

From the list of official Chromium builds here: https://commondatastorage.googleapis.com/chromium-browser-snapshots/index.html?prefix=Mac/

You want to test the two revisions that are closest to the latest Canary build of Chromium Legacy. So for example, since the last Chromium Legacy build is 1032258, I would test 1032260. If webcam functionality is broken there too, it's not a Chromium Legacy issue. If the webcam works, then we know it's a Chromium Legacy specific bug.

This does require a modern Mac or a VM. If you don't have access to that, it might be best to wait until the next stable.

[pjpreilly]

Google Meet is causing Chromium Helper (Plugin) to crash in current Canary..... when trying to activate the camera....

[pjpreilly]

Google Meet is causing Chromium Helper (Plugin) to crash in current Canary..... when trying to activate the camera....

That would seem to be a Chromium Legacy issue..?

[pjpreilly]

That would seem to be a Chromium Legacy issue..?

Seems like it might be easily recreated by you.....

[pjpreilly]

Then again could we have created this by patching the WebGl issue with the 104 libEGL.dylib work around...?

NOPE .... crashes without the patch too......

[pjpreilly]

So like WebGl the latest version of Canary is the FIRST & only version where the iSight camera does not work......

[pjpreilly]

So here's the isight crash log from the Meet camera failure....... Isight Meet Crash.txt

[pjpreilly]

...& Google Meets camera works fine on Canary 106.0.5246.0 on a modern mac.....FWIW....

[pjpreilly]

&.... both issues FIXED in 1036413....