142507 2015-03-09 14:52:04 -0700 REGRESSION: Assertions in SimpleLineLayout::FlowContents::segmentIndexForPositionSlow on editing/selection/home-end.html 2015-03-09 23:48:32 -0700 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) Unspecified Unspecified RESOLVED DUPLICATE 142508 P2 Normal --- 1 ap webkit-unassigned zalan oldest_to_newest 1075761 0 ap 2015-03-09 14:52:04 -0700 editing/selection/home-end.html has started to frequently crash with an assertion today: https://webkit-test-results.appspot.com/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=editing%2Fselection%2Fhome-end.html Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 com.apple.JavaScriptCore 0x0000000105dc0b5a WTFCrash + 42 (Assertions.cpp:321) 1 com.apple.WebCore 0x000000010bacb218 WebCore::SimpleLineLayout::FlowContents::segmentIndexForPositionSlow(unsigned int) const + 152 (SimpleLineLayoutFlowContents.cpp:59) 2 com.apple.WebCore 0x000000010ac912a3 WebCore::SimpleLineLayout::FlowContents::segmentIndexForPosition(unsigned int) const + 99 (SimpleLineLayoutFlowContents.h:103) 3 com.apple.WebCore 0x000000010ac90ecf WebCore::SimpleLineLayout::FlowContents::segmentForPosition(unsigned int) const + 31 (SimpleLineLayoutFlowContents.h:108) 4 com.apple.WebCore 0x000000010b6d566e WebCore::SimpleLineLayout::TextFragmentIterator::textWidth(unsigned int, unsigned int, float) const + 622 (SimpleLineLayoutTextFragmentIterator.cpp:103) 5 com.apple.WebCore 0x000000010b6d4f74 WebCore::SimpleLineLayout::TextFragmentIterator::nextTextFragment(float) + 484 (SimpleLineLayoutTextFragmentIterator.cpp:78) 6 com.apple.WebCore 0x000000010b788fda WebCore::SimpleLineLayout::createLineRuns(WebCore::SimpleLineLayout::LineState&, WebCore::SimpleLineLayout::LineState const&, WTF::Vector<WebCore::SimpleLineLayout::Run, 10ul, WTF::CrashOnOverflow>&, WebCore::SimpleLineLayout::TextFragmentIterator&) + 698 (SimpleLineLayout.cpp:445) 1075904 1 ap 2015-03-09 23:48:32 -0700 Resolved via a rollout. *** This bug has been marked as a duplicate of bug 142508 ***