[Webkit-unassigned] [Bug 111626] New: Layout Test svg/css/font-face-crash.html is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=111626

           Summary: Layout Test svg/css/font-face-crash.html is flaky
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rafaelw at chromium.org
                CC: pdr at google.com


The following layout test is flaky on Mac and is crashing periodically (though not often).

svg/css/font-face-crash.html

Probable cause not apparent.

Example stack:

crash log for DumpRenderTree (pid 2816):
STDOUT: <empty>
STDERR: SHOULD NEVER BE REACHED
STDERR: ../../third_party/WebKit/Source/WebCore/platform/graphics/mac/ComplexTextController.cpp(248) : int WebCore::ComplexTextController::offsetForPosition(float, bool)
STDERR: 1   0x6d76e77 WebCore::ComplexTextController::offsetForPosition(float, bool)
STDERR: 2   0x6d949b3 WebCore::Font::offsetForPositionForComplexText(WebCore::TextRun const&, float, bool) const
STDERR: 3   0x6bb50ed WebCore::Font::offsetForPosition(WebCore::TextRun const&, float, bool) const
STDERR: 4   0x85e1c90 WebCore::InlineTextBox::offsetForPosition(float, bool) const
STDERR: 5   0x88ddcf0 WebCore::RenderText::positionForPoint(WebCore::LayoutPoint const&)
STDERR: 6   0x96da5fd _ZN7WebCoreL40selectionExtentRespectingEditingBoundaryERKNS_16VisibleSelectionERKNS_11LayoutPointEPNS_4NodeE
STDERR: 7   0x96d9bfe WebCore::EventHandler::updateSelectionForMouseDrag(WebCore::HitTestResult const&)
STDERR: 8   0x96d8eae WebCore::EventHandler::handleMouseDraggedEvent(WebCore::MouseEventWithHitTestResults const&)
STDERR: 9   0x96df46f WebCore::EventHandler::handleMouseMoveEvent(WebCore::PlatformMouseEvent const&, WebCore::HitTestResult*, bool)
STDERR: 10  0x96de953 WebCore::EventHandler::mouseMoved(WebCore::PlatformMouseEvent const&)
STDERR: 11  0x65f575f WebKit::PageWidgetEventHandler::handleMouseMove(WebCore::Frame&, WebKit::WebMouseEvent const&)
STDERR: 12  0x65f543f WebKit::PageWidgetDelegate::handleInputEvent(WebCore::Page*, WebKit::PageWidgetEventHandler&, WebKit::WebInputEvent const&)
STDERR: 13  0x673a09b WebKit::WebViewImpl::handleInputEvent(WebKit::WebInputEvent const&)
STDERR: 14  0x4b1a801 WebTestRunner::EventSender::doMouseMove(WebKit::WebMouseEvent const&)
STDERR: 15  0x4b19e0b WebTestRunner::EventSender::replaySavedEvents()
STDERR: 16  0x4b17b25 WebTestRunner::EventSender::mouseUp(std::vector<WebTestRunner::CppVariant, std::allocator<WebTestRunner::CppVariant> > const&, WebTestRunner::CppVariant*)
STDERR: 17  0x4b220eb WebTestRunner::CppBoundClass::MemberCallback<WebTestRunner::EventSender>::run(std::vector<WebTestRunner::CppVariant, std::allocator<WebTestRunner::CppVariant> > const&, WebTestRunner::CppVariant*)
STDERR: 18  0x4b0a9ca WebTestRunner::CppBoundClass::invoke(void*, _NPVariant const*, unsigned long, _NPVariant*)
STDERR: 19  0x4b0a4eb WebTestRunner::CppNPObject::invoke(NPObject*, void*, _NPVariant const*, unsigned int, _NPVariant*)
STDERR: 20  0x8dcd3cf _ZN7WebCoreL18npObjectInvokeImplERKN2v89ArgumentsENS_18InvokeFunctionTypeE
STDERR: 21  0x8dcc66c WebCore::npObjectMethodHandler(v8::Arguments const&)
STDERR: 22  0x2f0ec36 _ZN2v88internalL19HandleApiCallHelperILb0EEEPNS0_11MaybeObjectENS0_12_GLOBAL__N_116BuiltinArgumentsILNS0_21BuiltinExtraArgumentsE1EEEPNS0_7IsolateE
STDERR: 23  0x2f0e6da _ZN2v88internalL26Builtin_Impl_HandleApiCallENS0_12_GLOBAL__N_116BuiltinArgumentsILNS0_21BuiltinExtraArgumentsE1EEEPNS0_7IsolateE
STDERR: 24  0x2f03fdc _ZN2v88internalL21Builtin_HandleApiCallENS0_12_GLOBAL__N_116BuiltinArgumentsILNS0_21BuiltinExtraArgumentsE1EEEPNS0_7IsolateE
STDERR: 25  0x3d10a216
STDERR: 26  0x5248d42d
STDERR: Received signal 11 SEGV_MAPERR 0000bbadbeef
STDERR:  [0x00000291a71f]
STDERR:  [0x00000291a6bb]
STDERR:  [0x00000291a34b]
STDERR:  [0x0000983c859b]
STDERR:  [0x0000ffffffff]
STDERR:  [0x000006d949b3]
STDERR:  [0x000006bb50ed]
STDERR:  [0x0000085e1c90]
STDERR:  [0x0000088ddcf0]
STDERR:  [0x0000096da5fd]
STDERR:  [0x0000096d9bfe]
STDERR:  [0x0000096d8eae]
STDERR:  [0x0000096df46f]
STDERR:  [0x0000096de953]
STDERR:  [0x0000065f575f]
STDERR:  [0x0000065f543f]
STDERR:  [0x00000673a09b]
STDERR:  [0x000004b1a801]
STDERR:  [0x000004b19e0b]
STDERR:  [0x000004b17b25]
STDERR:  [0x000004b220eb]
STDERR:  [0x000004b0a9ca]
STDERR:  [0x000004b0a4eb]
STDERR:  [0x000008dcd3cf]
STDERR:  [0x000008dcc66c]
STDERR:  [0x000002f0ec36]
STDERR:  [0x000002f0e6da]
STDERR:  [0x000002f03fdc]
STDERR:  [0x00003d10a216]
STDERR:  [0x00005248d42d]
STDERR: ax: bbadbeef, bx: ed710101, cx: ed7101e6, dx: ed7101e6
STDERR: di: 0, si: 9b6284b, bp: c007da48, sp: c007d970, ss: 23, flags: 210282
STDERR: ip: 6d76e81, cs: 1b, ds: 23, es: 23, fs: 0, gs: f

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