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]
I skipped it on Qt - https://trac.webkit.org/changeset/127110 Please uskip with the proper fix. (but see https://bugs.webkit.org/show_bug.cgi?id=95432 before unskipping.)
Just a note: I don't think this was introduced with the 126993 patch (as it only touches the transformation matrix), but it's something that got exposed by the new test.
The bug is still valid now.
still valid
=== Bulk closing of Qt bugs === If you believe that this bug report is still relevant for a non-Qt port of webkit.org, please re-open it and remove [Qt] from the summary. If you believe that this is still an important QtWebKit bug, please fill a new report at https://bugreports.qt-project.org and add a link to this issue. See http://qt-project.org/wiki/ReportingBugsInQt for additional guidelines.