Bug 290811 – REGRESSION(280414@main?): [ iOS Debug ] imported/w3c/web-platform-tests/fetch/api/crashtests/huge-fetch.any.worker.html is a flaky crash.

• Status: NEW
• Component: WebCore Misc.

[Yasmin Karimi]

Created attachment 474781 [details]
huge-fetch.any.worker-crash-log

imported/w3c/web-platform-tests/fetch/api/crashtests/huge-fetch.any.worker.html

This test is a flaky crash on iOS Debug.

HISTORY:

https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Ffetch%2Fapi%2Fcrashtests%2Fhuge-fetch.any.worker.html

STDERR:

Attached

REPRODUCIBILITY:

I was able to reproduce this issue on the iOS 18.2 simulator at ToT using the following commands:

python3 Tools/CISupport/download-built-product --platform=ios --debug 'https://s3-us-west-2.amazonaws.com/archives.webkit.org/ios-simulator-18-x86_64 arm64-debug/[e-mail]'

python3 Tools/CISupport/built-product-archive --platform=ios-simulator-18 --debug extract

run-webkit-tests --no-build --ios-simulator imported/w3c/web-platform-tests/fetch/api/crashtests/huge-fetch.any.worker.html --iterations 5 --debug

REGRESSION:

According to the results dashboard and contextual information, the probable regression point is 280414@main. The code paths changed in that commit appear to be related to the observed regression test failure.

This shows the regression area more clearly:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Ffetch%2Fapi%2Fcrashtests%2Fhuge-fetch.any.worker.html&recent=false&version_name=iOS%2018&version_name=iOS%2017

[Radar WebKit Bug Importer]

<rdar://problem/148286996>

[EWS]

Test gardening commit 292978@main (9df30788d01d): <https://commits.webkit.org/292978@main>

Reviewed commits have been landed. Closing PR #43361 and removing active labels.

[Alexey Proskuryakov]

SharedBuffer::tryCreateArrayBuffer Unable to create buffer. Requested size is too large (8589477088)
ASSERTION FAILED: JS assertion failed at line 1 in:
function (controller)
{
    "use strict";

    @assert(@readableStreamDefaultControllerCanCloseOrEnqueue(controller));
    @putByIdDirectPrivate(controller, "closeRequested", true);
    if (@getByIdDirectPrivate(controller, "queue").content.length === 0)
        @readableStreamClose(@getByIdDirectPrivate(controller, "controlledReadableStream"));
}