RESOLVED CONFIGURATION CHANGED226536
Crash while interacting with sketchfab.com webgl content 
https://bugs.webkit.org/show_bug.cgi?id=226536
Summary Crash while interacting with sketchfab.com webgl content
paul
Reported 2021-06-02 07:50:41 PDT
on 14.5.1 - goto https://sketchfab.com/3d-models/cube-test-442c548d94744641ba279ae94b5f45ec - ping zoom - uzoom a few time - browser crash "a problem occured on https://sketchfab.com/3d-models/cube-test-442c548d94744641ba279ae94b5f45ec"
Attachments
video of crash (522.24 KB, video/mp4)
2021-06-03 09:45 PDT, James 		no flags
Details
crash log (84.26 KB, text/json)
2021-06-03 09:57 PDT, James 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Kimmo Kinnunen
Comment 1 2021-06-03 00:08:56 PDT
Thanks for the report. I could not immediately repro the issue. My steps using iPhone 11 and 12: - navigated to the site - pinch zoomed around, doubletap zoomed around If you have time, please specify: - The device used? - Frequency: deterministic or sometimes? If you have more time and a Mac, you could see if you can obtain the crash log from ~/Library/Logs/CrashReporter/MobileDevice/ . It can be populated by syncing the device through Finder.
James
Comment 2 2021-06-03 09:45:11 PDT
Created attachment 430477 [details] video of crash
James
Comment 3 2021-06-03 09:57:29 PDT
Created attachment 430479 [details] crash log
James
Comment 4 2021-06-03 09:58:18 PDT
Hello, I'm using an iPhone 8 Plus, running iOS 14.5.1. I can reproduce the crash very consistently. In my experiencing, pinch/zooming on any website with a Sketchfab iframe embedded (with the render running) will cause the crash. It doesn't seem related to the complexity of the render or the website where it's embedded. That cube sample is about as simple as it gets ( https://sketchfab.com/3d-models/cube-test-442c548d94744641ba279ae94b5f45ec ). I've attached a video showing the issue. It took several zooms to happen, but sometimes less. I've also attached the crash log. Let me know if that's not the right file.
Kenneth Russell
Comment 5 2021-06-03 12:43:40 PDT
Sketchfab's a major WebGL site so raising this to P1, Major priority. Could one of the Apple engineers please try to reproduce this on a device? If there's a way for developers external to Apple to deploy and test WebKit builds on-device that would be fantastic.
Alexey Proskuryakov
Comment 6 2021-06-06 13:10:29 PDT
I can easily reproduce on iPhone 12 Pro with a recent WebKit. Couldn't find the applicable report on my device for some reason, but given the repro steps (it's pinch zooming the whole webpage, not inside the WebGL canvas), this can only be a generic case of running out of memory. The attached log also looks like a low memory event.
Radar WebKit Bug Importer
Comment 7 2021-06-09 07:51:18 PDT
<rdar://problem/79076476>
Brent Fulgham
Comment 8 2022-02-12 19:27:37 PST
QA indicates this is now progressed from other GL work this cycle.
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