Bug 242912

Summary: REGRESSION (iOS 16 beta) WASM crash
Product: WebKit Reporter: Brendan Duncan <brendanduncan>
Component: WebAssemblyAssignee: Nobody <webkit-unassigned>
Status: RESOLVED DUPLICATE    
Severity: Blocker CC: alonzakai, carlo, dino, justin_michaud, kbr, ysuzuki
Priority: P1    
Version: WebKit Nightly Build   
Hardware: iPhone / iPad   
OS: Other   
Bug Depends on: 237180    
Bug Blocks:    
Attachments:
Description Flags
Unity project build triggering WASM crash on iOS 16 none

Brendan Duncan
Reported 2022-07-19 11:56:38 PDT
Created attachment 461016 [details] Unity project build triggering WASM crash on iOS 16 Testing Unity WebGL builds on iOS 16 beta, all projects above a certain WASM size crash on load. I can make a small project that runs correctly, and add a small amount to the project to trigger the crash. So it does not appear to be WebGL / ANGLE related, but specifically WASM related. It resembles the WASM crash from 15.4 (https://bugs.webkit.org/show_bug.cgi?id=237180), but it's not the same since the work-arounds we used for that issue did not work here. This is a critical ship-stopper issue for Unity, we do not want to be in the situation we were in with iOS 15.4 shipping with the critical failure. I attached a minimal Unity project build that triggers the crash. I tested MacOS Safari Tech Preview 16 and it does not have the crash, so it seems specific to iOS Webkit.
Attachments
Unity project build triggering WASM crash on iOS 16 (8.26 MB, application/zip)
2022-07-19 11:56 PDT, Brendan Duncan 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Kenneth Russell
Comment 1 2022-07-19 21:47:07 PDT
Justin or anyone who worked on Bug 237180 - would it be possible for you to triage this? This sounds like a recent regression and it'll break Unity's content exported to the mobile web. Thanks.
Yusuke Suzuki
Comment 2 2022-07-19 22:30:28 PDT
This is very likely the same to bug 242294
Yusuke Suzuki
Comment 3 2022-07-19 23:52:25 PDT
OK, ensured that this is dupe of bug 242294. Thank you for your report! *** This bug has been marked as a duplicate of bug 242294 ***
Brendan Duncan
Comment 4 2022-07-20 00:16:38 PDT
That's great, thanks!
Note You need to log in before you can comment on or make changes to this bug.