[Webkit-unassigned] [Bug 258184] New: ASSERTION FAILED: firstChild():[ macOS ] 3x media/track/ tests are flaky crashes.
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Jun 15 20:16:58 PDT 2023
https://bugs.webkit.org/show_bug.cgi?id=258184
Bug ID: 258184
Summary: ASSERTION FAILED: firstChild():[ macOS ] 3x
media/track/ tests are flaky crashes.
Product: WebKit
Version: Other
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: New Bugs
Assignee: webkit-unassigned at lists.webkit.org
Reporter: bharris9 at apple.com
The following 2 layout tests:
media/track/track-webvtt-no-snap-to-lines-overlap.html
media/track/track-webvtt-snap-to-lines-left-right.html
are flaky crashes on macOS Debug queues.
HISTORY:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&test=media%2Ftrack%2Ftrack-webvtt-no-snap-to-lines-overlap.html&test=media%2Ftrack%2Ftrack-webvtt-snap-to-lines-left-right.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 0x151cd6060 WTFCrash
2 0x107fd9fe0 WebCore::NetworkResourcesData::ResourceData::hasContent() const
3 0x1091c1bfc WebCore::RenderVTTCue::initializeLayoutParameters(WebCore::LayoutUnit&, WebCore::LayoutUnit&)
4 0x1091c17a8 WebCore::RenderVTTCue::repositionCueSnapToLinesSet()
5 0x1091c1730 WebCore::RenderVTTCue::layout()
6 0x108241714 WebCore::RenderElement::layoutIfNeeded()
7 0x108f70438 WebCore::RenderBlock::layoutPositionedObject(WebCore::RenderBox&, bool, bool)
8 0x108f6efa8 WebCore::RenderBlock::layoutPositionedObjects(bool, bool)
9 0x108f6eb2c WebCore::RenderBlock::simplifiedLayout()
10 0x108f89288 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit)
11 0x108f6d164 WebCore::RenderBlock::layout()
12 0x108241714 WebCore::RenderElement::layoutIfNeeded()
13 0x108f70438 WebCore::RenderBlock::layoutPositionedObject(WebCore::RenderBox&, bool, bool)
14 0x108f6efa8 WebCore::RenderBlock::layoutPositionedObjects(bool, bool)
15 0x108f8995c WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit)
16 0x108f6d164 WebCore::RenderBlock::layout()
17 0x10907d870 WebCore::RenderImage::layoutShadowContent(WebCore::LayoutSize const&)
18 0x10907d450 WebCore::RenderImage::layout()
19 0x1091265d8 WebCore::RenderMedia::layout()
20 0x1091c3d80 WebCore::RenderVideo::layout()
21 0x108241714 WebCore::RenderElement::layoutIfNeeded()
22 0x108f8e378 WebCore::RenderBlockFlow::layoutModernLines(bool, WebCore::LayoutUnit&, WebCore::LayoutUnit&)
23 0x108f8bd70 WebCore::RenderBlockFlow::layoutInlineChildren(bool, WebCore::LayoutUnit&, WebCore::LayoutUnit&)
24 0x108f8a2b8 WebCore::RenderBlockFlow::layoutInFlowChildren(bool, WebCore::LayoutUnit&, WebCore::LayoutUnit&, WebCore::LayoutUnit&)
25 0x108f894b0 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit)
26 0x108f6d164 WebCore::RenderBlock::layout()
27 0x108f8ce90 WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&)
28 0x108f8c0d0 WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&)
29 0x108f8a2f4 WebCore::RenderBlockFlow::layoutInFlowChildren(bool, WebCore::LayoutUnit&, WebCore::LayoutUnit&, WebCore::LayoutUnit&)
30 0x108f894b0 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit)
31 0x108f6d164 WebCore::RenderBlock::layout()
com.apple.WebKit.WebContent.Development terminated (pid 46474) for reason: crash
LEAK: 1 WebPageProxy
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