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  1. Qt
  2. QTBUG-42274

QWebView applications crash

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P1: Critical P1: Critical
    • 5.4.0 RC
    • 5.4.0 Beta
    • WebKit
    • None
    • CPU:
      Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz

      OS:
      Kubuntu 14.04

      Configure flags:
      ../qt5/configure -developer-build -debug -opensource -nomake examples -nomake tests -skip wayland

      For example, running qtwebkit-examples/examples/webkitwidgets/fancybrowser which tries to open the qt-project website. It renders initially, but soon crashes with the following backtrace:

      ASSERTION FAILED: m_isCheckingArgumentTypes || m_canExit
      /home/srodal/dev/qt5/qtwebkit/Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp(110) : void JSC::DFG::SpeculativeJIT::backwardSpeculationCheck(JSC::ExitKind, JSC::DFG::JSValueSource, JSC::DFG::Node*, JSC::AbstractMacroAssembler<JSC::X86Assembler>::Jump)
      1 0x7fddb72bc699 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(WTFCrash+0x1e) [0x7fddb72bc699]
      2 0x7fddb70ab693 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1ee9693) [0x7fddb70ab693]
      3 0x7fddb70ab982 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1ee9982) [0x7fddb70ab982]
      4 0x7fddb70b8eb7 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1ef6eb7) [0x7fddb70b8eb7]
      5 0x7fddb70e0a69 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1f1ea69) [0x7fddb70e0a69]
      6 0x7fddb70b22a9 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1ef02a9) [0x7fddb70b22a9]
      7 0x7fddb70b29ac /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1ef09ac) [0x7fddb70b29ac]
      8 0x7fddb7082c92 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1ec0c92) [0x7fddb7082c92]
      9 0x7fddb7083eb2 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1ec1eb2) [0x7fddb7083eb2]
      10 0x7fddb707170a /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1eaf70a) [0x7fddb707170a]
      11 0x7fddb7070f10 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1eaef10) [0x7fddb7070f10]
      12 0x7fddb72001e8 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x203e1e8) [0x7fddb72001e8]
      13 0x7fddb72004da /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x203e4da) [0x7fddb72004da]
      14 0x7fddb71fe862 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x203c862) [0x7fddb71fe862]
      15 0x7fddb71fe027 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x203c027) [0x7fddb71fe027]
      16 0x7fddb6f66048 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1da4048) [0x7fddb6f66048]
      17 0x7fddb6f61046 /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1d9f046) [0x7fddb6f61046]
      18 0x7fddb714d3ea /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1f8b3ea) [0x7fddb714d3ea]
      19 0x7fddb714a5bd /home/srodal/dev/qt5-debug/qtbase/lib/libQt5WebKit.so.5(+0x1f885bd) [0x7fddb714a5bd]
      20 0x7fdd60bf8058 [0x7fdd60bf8058]
      Segmentation fault (core dumped)

      Reverting relatively recent change cf26dce826a7a6a2d14735c193c53b9103c4a369, "compileMakeRope does not emit necessary bounds checks" seems to fix it

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            allan.jensen Allan Sandfeld Jensen
            rodal Samuel Rødal
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              Created:
              Updated:
              Resolved:

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