Bug 221281

Summary:	REGRESSION [ MACOS ] imported/w3c/web-platform-tests/wasm/wasm_stream_instantiate_test.html failed in TEXT
Product:	WebKit	Reporter:	Robert Jenner <jenner>
Component:	New Bugs	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bot-watchers-bugzilla, webkit-bug-importer, ysuzuki
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=184886

Description Robert Jenner 2021-02-02 12:37:39 PST

imported/w3c/web-platform-tests/wasm/wasm_stream_instantiate_test.html 

and

imported/w3c/web-platform-tests/wasm/wasm_stream_compile_test.html

Are both flakey failing on MacOS in both Catalina and BigSur on wk1 and wk2

HISTORY:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fwasm%2Fwasm_stream_instantiate_test.html

and 

https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fwasm%2Fwasm_stream_compile_test.html

Both tests appear related, and appear to have started failing at the same time.

Comment 1 Radar WebKit Bug Importer 2021-02-02 12:37:58 PST

<rdar://problem/73893434>

Comment 2 Robert Jenner 2021-02-02 12:46:11 PST

Crashes first reported occurrence in history started at r272221


Was not able to reproduce in r272220, and was not able to reproduce crash due to builds being unavailable to me. 

Tracking changes in r272221 appear to relate to reported crashes. 

Trau changieret URL:
https://trac.webkit.org/changeset/272221/webkit

Comment 3 Radar WebKit Bug Importer 2021-02-02 12:46:20 PST

<rdar://problem/73893773>

Comment 4 Robert Jenner 2021-02-02 12:48:26 PST

**Trac Changeset URL:
https://trac.webkit.org/changeset/272221/webkit

Comment 5 Radar WebKit Bug Importer 2021-02-02 12:48:34 PST

<rdar://problem/73893923>

Comment 6 Robert Jenner 2021-02-02 13:30:53 PST

DIFF URLs:
https://build.webkit.org/results/Apple-BigSur-Release-WK2-Tests/r272221%20(1354)/imported/w3c/web-platform-tests/wasm/wasm_stream_compile_test-diff.txt

and 

https://build.webkit.org/results/Apple-BigSur-Release-WK2-Tests/r272221%20(1354)/imported/w3c/web-platform-tests/wasm/wasm_stream_instantiate_test-diff.txt

Comment 7 Yusuke Suzuki 2021-02-02 13:36:42 PST

Committed r272231: <https://trac.webkit.org/changeset/272231>