258185 2023-06-15 20:38:31 -0700 ASSERTION FAILED: firstChild():[ macOS ] http/tests/media/hls/track-in-band-ext-x-date-range-start-time.html is flaky crash. 2023-06-18 11:24:37 -0700 1 1 1 Unclassified WebKit New Bugs Other Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=258096 InRadar P2 Normal --- 1 bharris9 webkit-unassigned webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1962003 0 bharris9 2023-06-15 20:38:31 -0700 http/tests/media/hls/track-in-band-ext-x-date-range-start-time.html is a flaky crash on macOS Debug queues as well as a flaky test failure on iOS 16. HISTORY: https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fmedia%2Fhls%2Ftrack-in-band-ext-x-date-range-start-time.html STDERR TEXT: ASSERTION FAILED: firstChild() /Volumes/Data/worker/Apple-Ventura-Debug-Build/build/Source/WebCore/rendering/RenderVTTCue.cpp(79) : bool WebCore::RenderVTTCue::initializeLayoutParameters(WebCore::LayoutUnit &, WebCore::LayoutUnit &) 1 0x153c7e060 WTFCrash 2 0x109f81fe0 WebCore::NetworkResourcesData::ResourceData::hasContent() const 3 0x10b169bfc WebCore::RenderVTTCue::initializeLayoutParameters(WebCore::LayoutUnit&, WebCore::LayoutUnit&) 4 0x10b1697a8 WebCore::RenderVTTCue::repositionCueSnapToLinesSet() 5 0x10b169730 WebCore::RenderVTTCue::layout() 6 0x10a1e9714 WebCore::RenderElement::layoutIfNeeded() 7 0x10af18438 WebCore::RenderBlock::layoutPositionedObject(WebCore::RenderBox&, bool, bool) 8 0x10af16fa8 WebCore::RenderBlock::layoutPositionedObjects(bool, bool) 9 0x10af16b2c WebCore::RenderBlock::simplifiedLayout() 10 0x10af31288 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) 11 0x10af15164 WebCore::RenderBlock::layout() 12 0x10a1e9714 WebCore::RenderElement::layoutIfNeeded() 13 0x10af18438 WebCore::RenderBlock::layoutPositionedObject(WebCore::RenderBox&, bool, bool) 14 0x10af16fa8 WebCore::RenderBlock::layoutPositionedObjects(bool, bool) 15 0x10af3195c WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) 16 0x10af15164 WebCore::RenderBlock::layout() 17 0x10b025870 WebCore::RenderImage::layoutShadowContent(WebCore::LayoutSize const&) 18 0x10b025450 WebCore::RenderImage::layout() 19 0x10b0ce5d8 WebCore::RenderMedia::layout() 20 0x10b16bd80 WebCore::RenderVideo::layout() 21 0x10a1e9714 WebCore::RenderElement::layoutIfNeeded() 22 0x10af36378 WebCore::RenderBlockFlow::layoutModernLines(bool, WebCore::LayoutUnit&, WebCore::LayoutUnit&) 23 0x10af33d70 WebCore::RenderBlockFlow::layoutInlineChildren(bool, WebCore::LayoutUnit&, WebCore::LayoutUnit&) 24 0x10af322b8 WebCore::RenderBlockFlow::layoutInFlowChildren(bool, WebCore::LayoutUnit&, WebCore::LayoutUnit&, WebCore::LayoutUnit&) 25 0x10af314b0 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) 26 0x10af15164 WebCore::RenderBlock::layout() 27 0x10af34e90 WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&) 28 0x10af340d0 WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&) 29 0x10af322f4 WebCore::RenderBlockFlow::layoutInFlowChildren(bool, WebCore::LayoutUnit&, WebCore::LayoutUnit&, WebCore::LayoutUnit&) 30 0x10af314b0 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) 31 0x10af15164 WebCore::RenderBlock::layout() com.apple.WebKit.WebContent.Development terminated (pid 38179) for reason: crash LEAK: 1 WebPageProxy 1962004 1 webkit-bug-importer 2023-06-15 20:38:49 -0700 <rdar://problem/110877447> 1962006 2 ews-feeder 2023-06-15 20:50:08 -0700 Test gardening commit 265225@main (eecf8b12cebf): <https://commits.webkit.org/265225@main> Reviewed commits have been landed. Closing PR #15037 and removing active labels.