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Thread: crash on qt eventloop

  1. 28th April 2013, 02:22 #1
    waiter
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    Default crash on qt eventloop

    #0 0x00007ffff4cb65f6 in QBrush::QBrush(QBrush const&) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #1 0x00007ffff4bca8fe in ?? () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #2 0x00007ffff464da2e in QVariant::QVariant(QVariant const&) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtCore.so.4
    #3 0x00007ffff51775e3 in QTreeWidgetItem::data(int, int) const () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #4 0x00007ffff51768d5 in ?? () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #5 0x00007ffff51aee93 in QStyledItemDelegate::initStyleOption(QStyleOptionV iewItem*, QModelIndex const&) const () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #6 0x00007ffff51b0218 in QStyledItemDelegate::sizeHint(QStyleOptionViewItem const&, QModelIndex const&) const () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #7 0x00007ffff514117d in QTreeView::indexRowSizeHint(QModelIndex const&) const () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #8 0x00007ffff5141589 in QTreeViewPrivate::itemHeight(int) const () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #9 0x00007ffff514481f in QTreeView::dataChanged(QModelIndex const&, QModelIndex const&) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #10 0x00007ffff463abae in QObject::event(QEvent*) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtCore.so.4
    #11 0x00007ffff4bdc1ef in QWidget::event(QEvent*) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #12 0x00007ffff4fc7936 in QFrame::event(QEvent*) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #13 0x00007ffff5055f6b in QAbstractScrollArea::event(QEvent*) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #14 0x00007ffff50fb41b in QAbstractItemView::event(QEvent*) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #15 0x00007ffff4b8756c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #16 0x00007ffff4b8ca1d in QApplication::notify(QObject*, QEvent*) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #17 0x00007ffff462830c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtCore.so.4
    #18 0x00007ffff462cbf3 in QCoreApplicationPrivate::sendPostedEvents(QObject* , int, QThreadData*) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtCore.so.4
    #19 0x00007ffff4659cf3 in ?? () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtCore.so.4
    #20 0x00007ffff216a58d in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
    #21 0x00007ffff216ad88 in ?? () from /usr/lib64/libglib-2.0.so.0
    #22 0x00007ffff216af59 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
    #23 0x00007ffff4659833 in QEventDispatcherGlib:rocessEvents(QFlags<QEventLoop::ProcessEventsFlag> ) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtCore.so.4
    #24 0x00007ffff4c3a90e in ?? () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtGui.so.4
    #25 0x00007ffff4626ec2 in QEventLoop:rocessEvents(QFlags<QEventLoop::ProcessEventsFlag> ) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtCore.so.4
    #26 0x00007ffff4627334 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsF lag>) () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtCore.so.4
    #27 0x00007ffff462cfc9 in QCoreApplication::exec() () from /opt/QtSDK/Desktop/Qt/4.8.1/gcc/lib/libQtCore.so.4
    #28 0x0000000000435895 in main (argc=1, argv=0x7fffffffdd18) at ../goldenrod/trunk/surveil/chameleon/main.cpp:71
    what should i do?
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  2. 28th April 2013, 11:28 #2
    amleto
    amleto is offline Expert
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    Default Re: crash on qt eventloop

    look at the data in your tree
    If you have a problem, CUT and PASTE your code. Do not retype or simplify it. Give a COMPLETE and COMPILABLE example of your problem. Otherwise we are all guessing the problem from a fabrication where relevant details are often missing.
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