32 tests started to crash after r272065 was introduced. Tests are crashing on BigSur release WK2 Tests crashing URL: https://build.webkit.org/results/Apple-BigSur-Release-WK2-Tests/r272069%20(1274)/results.html CRASHING TESTS: http/tests/cache/disk-cache/disk-cache-media-small.html http/tests/cache/memory-cache-pruning.html http/tests/canvas/webgl/origin-clean-conform http/tests/contentextensions/text-track-blocked.html http/tests/contentextensions/video-element-resource-type.html http/tests/inspector/network/resource-initiatorNode.html http/tests/media/audio-volume-zero.html http/tests/media/autoplay-if-audio-is-play http/tests/media/clearkey/clear-key-hls-aes128.html http/tests/media/clearkey/collect-webkit-media-session.html http/tests/media/hls/hls-hdr-switch.html http/tests/media/hls/hls-progress.html http/tests/media/hls/hls-video-resize.html http/tests/media/hls/video-controller-getStartDate.html http/tests/media/hls/video-controls-live-stream.html http/tests/media/hls/video-duration-accessibility.html http/tests/media/media-document-referer.html http/tests/media/media-document.html http/tests/media/media-play-stream-chunked-icy.html http/tests/media/modern-media-controls/macos-fullscreen-media-controls/macos-fullscreen-media-controls-live-broadcast.html http/tests/media/modern-media-controls/pip-support/pip-support-live-broadcast.html http/tests/media/modern-media-controls/skip-back-support/skip-back-support-button-click.html http/tests/media/modern-media-controls/skip-back-support/skip-back-support-live-broadcast.html http/tests/media/modern-media-controls/status-support/status-support-live-broadcast.html http/tests/media/modern-media-controls/time-control/1-to-10-hours.html http/tests/media/modern-media-controls/time-control/10-hours-or-more.html http/tests/media/modern-media-controls/time-control/10-minutes-to-1-hour.html http/tests/misc/delete-frame-during-readystatechange-with-gc-after-video-removal.html http/tests/misc/delete-frame-during-readystatechange.html http/tests/preload/download_resources.html http/tests/preload/single_download_preload_he http/tests/preload/single_download_preload.html HISTORY: https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fcache%2Fdisk-cache%2Fdisk-cache-media-small.html Please note history is for one specific test, but it matches all the other crashes. Bug/Crash reproducible in r272065 Produced crash using test: run-webkit-test http/tests/cache/disk-cache/disk-cache-media-small.html --iterations 1000 -f for all 32 crashes. Regress found crashes not occurring on r272063. It appears the crashes were introduced in r272065
<rdar://problem/73769745>
*** This bug has been marked as a duplicate of bug 221155 ***