[Webkit-unassigned] [Bug 256703] New: [iOS] Wasm based WebApp crashes on iOS with "A problem repeatedly occurred...."

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=256703

            Bug ID: 256703
           Summary: [iOS] Wasm based WebApp crashes on iOS with "A problem
                    repeatedly occurred...."
           Product: WebKit
           Version: Safari 16
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebAssembly
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: pulkitarora21 at gmail.com

Created attachment 466334

  --> https://bugs.webkit.org/attachment.cgi?id=466334&action=review

JetsamEvent

Hi, our web-app crashes with message "A problem repeatedly occurred..." on iOS (on devices like iPad mini 6, iPhone 13 pro) soon after the wasm is loaded. It works fine on safari on MacOS for the devices we've tried. The link to open web-app on iOS: https://readalong.google.com/?ios=1

The process is being jettisoned by iOS with reason "per_process_limit" (attached the jetsam event logs).

The memory consumption is very high (>1.4GB as can be seen from the jetsam event) - we suspect that the compiled size of wasm is very high in webkit (it is much lower on Chrome v8). The unzipped size of wasm is ~46MB.

How can we reduce the memory consumption?

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