[ BigSur Debug wk2 EWS ] webrtc/video-interruption.html is flaky crashing

webrtc/video-interruption.html

Is flaky crashing on macOS-AppleSilicon-Big-Sur-Debug-WK2-Tests-EWS.

Crash log:

No crash log found for GPUProcess:22160.

stdout:

stderr:
LEAK: 1 WebPageProxy

Results: https://ews-build.s3-us-west-2.amazonaws.com/macOS-AppleSilicon-Big-Sur-Debug-WK2-Tests-EWS/r431507-6523/results.html

https://ews-build.webkit.org/#/builders/60/builds/6523

It looks like the test is flaky failing on Big Sur wk2 Debug on the open source: https://results.webkit.org/?suite=layout-tests&test=webrtc/video-interruption.html

Diff:

--- /Volumes/Data/worker/bigsur-debug-tests-wk2/build/layout-test-results/webrtc/video-interruption-expected.txt
+++ /Volumes/Data/worker/bigsur-debug-tests-wk2/build/layout-test-results/webrtc/video-interruption-actual.txt
@@ -1,4 +1,4 @@
-
+--      -   -1/  -1 250.0    0/    0   1       0/    0 -- 
 
 PASS Basic video exchange with media session interruption

Looks like the flaky failure seen on the open source is the known webrtc issues reported here: https://bugs.webkit.org/show_bug.cgi?id=225525 (REGRESSION: [ BigSur ] various webrtc/video-* tests are flaky text failures due to unexpected logging)

It appears the flakiness has started on EWS at around https://ews-build.webkit.org/#/builders/60/builds/6523

[Radar WebKit Bug Importer]

<rdar://problem/81903799>

Updated test expectations: https://trac.webkit.org/changeset/281021/webkit

[youenn fablet]

Issue is still related to log going in stderr underneath us in BigSur.
Not sure about the crashes.