Bug 232565

Summary:	Regression (r285055): [ macOS ] webgl/1.0.x/conformance/textures/misc/texture-corner-case-videos.html and webgl/2.0.y/conformance/textures/misc/texture-corner-case-videos.html are timing out.
Product:	WebKit	Reporter:	ayumi_kojima
Component:	WebGL	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	dino, heycam, kbr, kkinnunen, simon.fraser, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=230766

Description ayumi_kojima 2021-11-01 08:43:40 PDT

webgl/1.0.x/conformance/textures/misc/texture-corner-case-videos.html
webgl/2.0.y/conformance/textures/misc/texture-corner-case-videos.html

Are flaky timing out on macOS wk2. It is very flaky. It almost constantly timing out.

History: https://results.webkit.org/?suite=layout-tests&suite=layout-tests&test=webgl%2F1.0.x%2Fconformance%2Ftextures%2Fmisc%2Ftexture-corner-case-videos.html&test=webgl%2F2.0.y%2Fconformance%2Ftextures%2Fmisc%2Ftexture-corner-case-videos.html

Result page: https://build.webkit.org/results/Apple-iPadOS-15-Simulator-Debug-WK2-Tests/r285088%20(193)/results.html#

Diff:

--- /Volumes/Data/worker/ipados-simulator-15-debug-tests-wk2/build/layout-test-results/webgl/1.0.x/conformance/textures/misc/texture-corner-case-videos-expected.txt
+++ /Volumes/Data/worker/ipados-simulator-15-debug-tests-wk2/build/layout-test-results/webgl/1.0.x/conformance/textures/misc/texture-corner-case-videos-actual.txt
@@ -1,3 +1,7 @@
+CONSOLE MESSAGE: Unable to get image data from canvas. Requested size was 2 x 2
+CONSOLE MESSAGE: InvalidStateError: The object is in an invalid state.
+FAIL: Timed out waiting for notifyDone to be called
+
 This test runs the WebGL Test listed below in an iframe and reports PASS or FAIL.
 
 Test: ../../../../resources/webgl_test_files/conformance/textures/misc/texture-corner-case-videos.html
@@ -14,8 +18,3 @@
 [ 10: PASS ] shouldBe 255,0,0
 [ 11: PASS ] shouldBe 0,255,0
 [ 12: PASS ] getError was expected value: NO_ERROR : should be no errors
-[ 13: FAIL ] shouldBe 0,255,0 at (4, 24) expected: 0,255,0 was 63,251,0
-[ 14: FAIL ] shouldBe 255,0,0 at (4, 4) expected: 255,0,0 was 247,36,0
-[ 15: PASS ] getError was expected value: NO_ERROR : should be no errors
-[ 16: PASS ] successfullyParsed is true
-[ FAIL ] 2 failures reported

Comment 1 Radar WebKit Bug Importer 2021-11-01 09:08:44 PDT

<rdar://problem/84883355>

Comment 2 ayumi_kojima 2021-11-01 09:10:25 PDT

I was easily able to reproduce the timeout using run-webkit-tests webgl/1.0.x/conformance/textures/misc/texture-corner-case-videos.html.

The test passed with r285054 and timed out with r285055.

Comment 3 ayumi_kojima 2021-11-01 09:29:11 PDT

Reverted in https://trac.webkit.org/changeset/285110/webkit

Comment 4 Alexey Proskuryakov 2021-11-01 13:52:48 PDT

Marking as fixed, as the culprit was reverted.