[Webkit-unassigned] [Bug 240062] New: WebWorker stops suddenly without any messages

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed May 4 04:07:45 PDT 2022


https://bugs.webkit.org/show_bug.cgi?id=240062

            Bug ID: 240062
           Summary: WebWorker stops suddenly without any messages
           Product: WebKit
           Version: Safari 15
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore JavaScript
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: takuo.kihira at gmail.com

When running some WebWorkers (or single worker), sometimes suddenly workers stop without any messages or events.

https://dynamic-wasm-6128yfdg3-tkihira.vercel.app/worker-stall.html

I've made small reproducible example here. This URL runs 6 workers but on my Intel Mac & Safari 14, M1 Mac & Safari 15, and iOS 15.4 Mobile Safari some workers stopped suddenly and couldn't finish all workers.

This seems a threading problem, so if you can't reproduce it please retry it again.

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