Bug 228091

Summary: Regression (r272842): [macOS] media/modern-media-controls/scrubber-support/scrubber-support-drag.html is flaky timing out
Product: WebKit Reporter: ayumi_kojima
Component: MediaAssignee: ayumi_kojima
Status: NEW ---    
Severity: Normal CC: eric.carlson, hi, jenner, peng.liu6, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Update Expectations none

Description ayumi_kojima 2021-07-19 15:19:59 PDT 
media/modern-media-controls/scrubber-support/scrubber-support-drag.html

Is a flaky timeout on MacOS wk1 Release.

History: https://results.webkit.org/?suite=layout-tests&test=media%2Fmodern-media-controls%2Fscrubber-support%2Fscrubber-support-drag.html

Diff:

--- /Volumes/Data/worker/bigsur-release-tests-wk1/build/layout-test-results/media/modern-media-controls/scrubber-support/scrubber-support-drag-expected.txt
+++ /Volumes/Data/worker/bigsur-release-tests-wk1/build/layout-test-results/media/modern-media-controls/scrubber-support/scrubber-support-drag-actual.txt
@@ -1,11 +1,16 @@
+FAIL: Timed out waiting for notifyDone to be called
 Testing the ScrubberSupport behavior when dragging the scrubber.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
 PASS media.currentTime is within 0.2 of 3.0136
-PASS media.currentTime became 0
-PASS successfullyParsed is true
 
-TEST COMPLETE
 
+
+
+
+0:03
+
+0:06
+
Comment 1 Radar WebKit Bug Importer 2021-07-19 15:20:20 PDT 
<rdar://problem/80805351>
Comment 2 ayumi_kojima 2021-07-19 15:27:04 PDT 
Created attachment 433827 [details]
Update Expectations
Comment 3 Robert Jenner 2021-07-19 15:59:22 PDT 
Comment on attachment 433827 [details]
Update Expectations

Clearing flags on attachment: 433827

Committed r280052 (239787@main): <https://commits.webkit.org/239787@main>
Comment 4 ayumi_kojima 2021-07-19 15:59:55 PDT 
I was not able to reproduce the timeout after being able to reproducing at tip-of-tree  one time using run-webkit-tests media/modern-media-controls/scrubber-support/scrubber-support-drag.html -1 -f --iterations 500 --exit-after-n-failures 2 --exit-after-n-crashes-or-timeouts 2 --no-build
Comment 5 ayumi_kojima 2021-10-07 13:37:21 PDT 
The flaky timeout is still happening. I still cannot reproduce the timeout with wk1, but with wk2 I was able to reproduce the timeout using run-webkit-tests --iterations 100 --force --exit-after-n-failures 1 --debug media/modern-media-controls/scrubber-support/scrubber-support-drag.html
Comment 6 ayumi_kojima 2021-10-07 16:40:34 PDT 
The test timed out with the same diff on r272842 and passed on r272841.
Comment 7 Ryan Haddad 2022-05-02 16:29:51 PDT 
It looks like this times out rarely on WK1, but it is very frequently timing out on WK2. Adjusting title.