313617 2026-04-28 22:57:09 -0700 REGRESSION(301011@main): media/media-source/media-managedmse-stall-endofstream.html is a flaky TEXT failure 2026-04-28 22:59:09 -0700 1 1 1 Unclassified WebKit Media WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 307515 InRadar P2 Normal --- 1 jean-yves.avenard jean-yves.avenard oldest_to_newest 2205651 0 jean-yves.avenard 2026-04-28 22:57:09 -0700 rdar://173033418 Description: media/media-source/media-managedmse-stall-endofstream.html is a flaky TEXT failure on mac Fizz Release This can be bisected to this range: https://commits.webkit.org/compare/301008@main...301013@main 301011@main (468654de4a9e) is almost certainly the cause. It's the only commit that touches MSE/media code — it adopts AudioVideoRendererAVFObjC in MediaPlayerPrivateMediaSourceAVFObjC, which is exactly the media source pipeline this test exercises. This issue can be bisected to 301013@main using the command: run-webkit-tests --no-build --no-retry --no-show-results --exit-after-n-failures=1 --expect-pass --iterations=5 --force --release media/media-source/media-managedmse-stall-endofstream.html ------------- BISECTION AUDIT TRAIL ------------- 299899@main, e2753c154782 --> Passed 300476@main, 7a62836e8bc6 --> Passed 300761@main, 95c5c975f17e --> Passed 300901@main, 5550d0fc80a2 --> Passed 300971@main, 75fbb6431884 --> Passed 300990@main, 6cef80096138 --> Passed 300999@main, 4ea2ca7e9522 --> Passed 301006@main, 4ea2ca7e9522 --> Passed 301008@main, 4ea2ca7e9522 --> Passed <-- No spades in this range --> 301013@main, 4ea2ca7e9522 --> TEXT 301016@main, 95438ead3563 --> TEXT 301053@main, df4e60d40889 --> TEXT 301157@main, 14a2ebd80d48 --> TEXT 302322@main, b297421f83de --> TEXT 302602@main, b85716f86c77 --> TEXT 303983@main, 65f8a877ae55 --> TEXT 304721@main, 44e044a7db35 --> TEXT 305504@main, 8c877cb140e4 --> TEXT 306998@main, d1b6c6abd0be --> TEXT 308330@main, dda44e196764 --> TEXT 309626@main, f7f87afcd480 --> TEXT ------------- BISECTION AUDIT TRAIL END ------------- 2205652 1 jean-yves.avenard 2026-04-28 22:59:09 -0700 *** This bug has been marked as a duplicate of bug 307515 ***