[Webkit-unassigned] [Bug 95431] New: [Qt] New svg/custom/clamped-masking-clipping.svg asserts

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=95431

           Summary: [Qt] New svg/custom/clamped-masking-clipping.svg
                    asserts
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: Qt, QtTriaged
          Severity: Critical
          Priority: P1
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ossy at webkit.org
                CC: zimmermann at kde.org, fmalita at chromium.org
            Blocks: 79668,95197


svg/custom/clamped-masking-clipping.svg introduced in https://trac.webkit.org/changeset/126993,
but asserts on Qt in debug mode:


crash log for DumpRenderTree (pid 14723):
STDOUT: <empty>
STDERR: ASSERTION FAILED: m_transparencyCount > 0
STDERR: /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/Source/WebCore/platform/graphics/GraphicsContext.cpp(347) : void WebCore::GraphicsContext::endTransparencyLayer()
STDERR: 1   0x7fe0c7146cc8 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x11ffcc8) [0x7fe0c7146cc8]
STDERR: 2   0x7fe0c74ad683 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x1566683) [0x7fe0c74ad683]
STDERR: 3   0x7fe0c71460cc /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x11ff0cc) [0x7fe0c71460cc]
STDERR: 4   0x7fe0c64148f7 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(_ZN9QWebFrame6renderEP8QPainter+0x1bd) [0x7fe0c64148f7]
STDERR: 5   0x4195d7 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/bin/DumpRenderTree() [0x4195d7]
STDERR: 6   0x42c659 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/bin/DumpRenderTree() [0x42c659]
STDERR: 7   0x7fe0c3d332b1 /usr/local/Trolltech/Qt5/Qt-5.0.0-r36/lib/libQtCore.so.5(_ZN11QMetaObject8activateEP7QObjectiiPPv+0x651) [0x7fe0c3d332b1]
STDERR: 8   0x4302cd /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/bin/DumpRenderTree() [0x4302cd]
STDERR: 9   0x426369 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/bin/DumpRenderTree() [0x426369]
STDERR: 10  0x42e138 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/bin/DumpRenderTree() [0x42e138]
STDERR: 11  0x7fe0c3d332b1 /usr/local/Trolltech/Qt5/Qt-5.0.0-r36/lib/libQtCore.so.5(_ZN11QMetaObject8activateEP7QObjectiiPPv+0x651) [0x7fe0c3d332b1]
STDERR: 12  0x7fe0c6436d12 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(_ZN8QWebPage12loadFinishedEb+0x4c) [0x7fe0c6436d12]
STDERR: 13  0x7fe0c64832e1 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x53c2e1) [0x7fe0c64832e1]
STDERR: 14  0x7fe0c647aae0 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x533ae0) [0x7fe0c647aae0]
STDERR: 15  0x7fe0c6fe2a9b /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x109ba9b) [0x7fe0c6fe2a9b]
STDERR: 16  0x7fe0c6fe3954 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x109c954) [0x7fe0c6fe3954]
STDERR: 17  0x7fe0c6fc2cbc /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x107bcbc) [0x7fe0c6fc2cbc]
STDERR: 18  0x7fe0c7000720 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x10b9720) [0x7fe0c7000720]
STDERR: 19  0x7fe0c700e45b /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x10c745b) [0x7fe0c700e45b]
STDERR: 20  0x7fe0c74d0859 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x1589859) [0x7fe0c74d0859]
STDERR: 21  0x7fe0c74cee3e /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x1587e3e) [0x7fe0c74cee3e]
STDERR: 22  0x7fe0c74ceb27 /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x1587b27) [0x7fe0c74ceb27]
STDERR: 23  0x7fe0c74cffce /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x1588fce) [0x7fe0c74cffce]
STDERR: 24  0x7fe0c74d313c /home/webkitbuildbot/slaves/debug64bit/buildslave/qt-linux-64-debug/build/WebKitBuild/Debug/lib/libQtWebKit.so.5(+0x158c13c) [0x7fe0c74d313c]
STDERR: 25  0x7fe0c3d332b1 /usr/local/Trolltech/Qt5/Qt-5.0.0-r36/lib/libQtCore.so.5(_ZN11QMetaObject8activateEP7QObjectiiPPv+0x651) [0x7fe0c3d332b1]
STDERR: 26  0x7fe0c3d2d29e /usr/local/Trolltech/Qt5/Qt-5.0.0-r36/lib/libQtCore.so.5(_ZN7QObject5eventEP6QEvent+0x36e) [0x7fe0c3d2d29e]
STDERR: 27  0x7fe0c536949c /usr/local/Trolltech/Qt5/Qt-5.0.0-r36/lib/libQtWidgets.so.5(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0xac) [0x7fe0c536949c]
STDERR: 28  0x7fe0c536fa2d /usr/local/Trolltech/Qt5/Qt-5.0.0-r36/lib/libQtWidgets.so.5(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x11d) [0x7fe0c536fa2d]
STDERR: 29  0x7fe0c3d083d4 /usr/local/Trolltech/Qt5/Qt-5.0.0-r36/lib/libQtCore.so.5(_ZN16QCoreApplication14notifyInternalEP7QObjectP6QEvent+0x84) [0x7fe0c3d083d4]
STDERR: 30  0x7fe0c3d0d359 /usr/local/Trolltech/Qt5/Qt-5.0.0-r36/lib/libQtCore.so.5(_ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData+0x279) [0x7fe0c3d0d359]
STDERR: 31  0x7fe0c3d53b33 /usr/local/Trolltech/Qt5/Qt-5.0.0-r36/lib/libQtCore.so.5(+0x26cb33) [0x7fe0c3d53b33]

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