Bug 263631

Summary:	http/tests/multipart/invalid-image-data-standalone.html is timing out if it repeats more than 64 times
Product:	WebKit	Reporter:	Fujii Hironori <Hironori.Fujii>
Component:	Platform	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	ap, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Fujii Hironori 2023-10-24 19:42:09 PDT

[Win] http/tests/multipart/invalid-image-data-standalone.html is timing out if it repeats more than 64 times

I'm running layout test with Windows Debug 269746@main.

> python .\Tools\Scripts\run-webkit-tests --debug --iter=70 -no-retry -v http/tests/multipart/invalid-image-data-standalone.html

[62/70] http/tests/multipart/invalid-image-data-standalone.html passed
[63/70] http/tests/multipart/invalid-image-data-standalone.html passed
[64/70] http/tests/multipart/invalid-image-data-standalone.html passed
[65/70] http/tests/multipart/invalid-image-data-standalone.html failed unexpectedly (test timed out, text diff)
[66/70] http/tests/multipart/invalid-image-data-standalone.html failed unexpectedly (test timed out, no output from test)
[67/70] http/tests/multipart/invalid-image-data-standalone.html passed
[68/70] http/tests/multipart/invalid-image-data-standalone.html passed
[69/70] http/tests/multipart/invalid-image-data-standalone.html passed
[70/70] http/tests/multipart/invalid-image-data-standalone.html passed

Comment 1 Fujii Hironori 2023-10-24 20:27:00 PDT

This timeout seems to be reprodusible for Mac with slightly different switches.

> Tools/Scripts/run-webkit-tests --debug --no-build  --iter=300 --no-retry -v --child=2 -f http/tests/multipart/invalid-image-data-standalone.html 

[150/300] http/tests/multipart/invalid-image-data-standalone.html passed
[151/300] http/tests/multipart/invalid-image-data-standalone.html passed
[152/300] http/tests/multipart/invalid-image-data-standalone.html failed unexpectedly (test timed out, text diff)
[153/300] http/tests/multipart/invalid-image-data-standalone.html failed unexpectedly (test timed out, text diff)
[154/300] http/tests/multipart/invalid-image-data-standalone.html passed
[154/300] http/tests/multipart/invalid-image-data-standalone.html passed

I'm running layout tests with Mac debug 269557@main.

Comment 2 Radar WebKit Bug Importer 2023-10-31 19:43:13 PDT

<rdar://problem/117775953>

Comment 3 Fujii Hironori 2023-11-27 22:05:46 PST

It seems to be reaching the CGI process limit.
Replacing wait=100 with wait=3 resolves the problem.