[Webkit-unassigned] [Bug 256703] [iOS] Wasm based WebApp readalong.google.com reproducibly jetsams

[bugzilla-daemon at webkit.org]

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

--- Comment #22 from tasnim <tasnimrock2k6 at gmail.com> ---
(In reply to Mark Lam from comment #21)
> Tasnim, please get us the following info:
> 1.Do a grep of your code and see if you use SharedArrayBuffers.
Yes:
1) WasmMemory backed by SAB which is of 256MB (we are looking to lowering this).
2) Separate SAB of 1 byte (i.e. new SharedArrayBuffer(1)).
> 2. If so, can you look at that code and check if your usage of it defers on
> Safari vs Chrome?  If so, how?
No: no browser specific logics there.
> 3. Does your code do any feature detection / user agent discrimination on
> browsers at all?
As mentioned in https://bugs.webkit.org/show_bug.cgi?id=256703#c16, we do have "simd" feature detection where earlier we used to deliver "non-simd" wasm to safari but now it seems both: chrome & safari are getting the "simd" variant.

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