Bug 223949 – [ macOS iOS ] crypto/crypto-random-values-oom.html is a flakey timeout

• Status: RESOLVED
• Resolution: FIXED
• Component: WebCore Misc.

[Robert Jenner]

crypto/crypto-random-values-oom.html

is a flakey timeout on iOS 14 Debug, and macOS Catalina and higher. 

Most timeouts for macOS occur on BigSur DebugwWk1 and wk2 on apple silicon mostly. But the history shows flakey timeouts occurring for a while on Catalina in release for wk1 and wk2. The timeouts appear more frequent in iOS and on Apple Silicon. 

HISTORY URL:
https://results.webkit.org/?suite=layout-tests&test=crypto%2Fcrypto-random-values-oom.html

Could not obtain a Timeout Diff, as even the most recent record for the timeout diff on the Layout-test results page results in a 404 error.

[Robert Jenner]

Was able to reproduce the timeout on Catalina wk2 Release ToT using the following test:

run-webkit-test crypto/crypto-random-values-oom.html --iterations 1000 -f

Here is the text diff that was generated from reproducing the timeout:

PASS exceptionString == undefined || exceptionString === "TypeError: Argument 1 ('array') to Crypto.getRandomValues must be an instance of ArrayBufferView" is true
PASS crypto.getRandomValues didn't crash
PASS successfullyParsed is true

TEST COMPLETE

[Radar WebKit Bug Importer]

<rdar://problem/76020524>

[Robert Jenner]

Updated test expectations here to Pass Timeout while test is reviewed: 
https://trac.webkit.org/changeset/275234/webkit

[Ryan Haddad]

It looks like this test was marked as slow in https://commits.webkit.org/237437@main, but it is still timing out on the bots.

[Amir Mark Jr]

Updated the test expectations back to Pass Timeout due to test still appearing flaky:

https://trac.webkit.org/changeset/278126/webkit

Created attachment 433832 [details]
Update Expectations

Updating the test expectations for iOS simulator back to Pass Timeout due to test still appearing flaky

[Robert Jenner]

Comment on attachment 433832 [details]
Update Expectations

Clearing flags on attachment: 433832

Committed r280054 (239789@main): <https://commits.webkit.org/239789@main>

[Vitaly Dyackhov]

Pull request: https://github.com/WebKit/WebKit/pull/29220

[EWS]

Committed 279733@main (e9b4df324f0c): <https://commits.webkit.org/279733@main>

Reviewed commits have been landed. Closing PR #29220 and removing active labels.