Program received signal SIGSEGV, Segmentation fault.
0x00007ffff711000c in ?? () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
(gdb) backtrace
#0 0x00007ffff711000c in ?? () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#1 0x00007ffff711101a in QPainter::QPainter(QPaintDevice*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#2 0x00007ffff73fdb3d in QFrame::paintEvent(QPaintEvent*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#3 0x00007ffff701325b in QWidget::event(QEvent*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#4 0x00007ffff73fd7cb in QFrame::event(QEvent*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#5 0x00007ffff6fb2faf in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#6 0x00007ffff6fb9c8b in QApplication::notify(QObject*, QEvent*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#7 0x00007ffff6a62dc4 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtCore.so.4
#8 0x00007ffff700d202 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#9 0x00007ffff700dd32 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevic e*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) ()
from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#10 0x00007ffff700cf7f in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#11 0x00007ffff71ebf6a in ?? () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#12 0x00007ffff7004086 in QWidgetPrivate::syncBackingStore() () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#13 0x00007ffff7013911 in QWidget::event(QEvent*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#14 0x00007ffff741a4e1 in QMainWindow::event(QEvent*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#15 0x00007ffff6fb2faf in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#16 0x00007ffff6fb9c8b in QApplication::notify(QObject*, QEvent*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#17 0x00007ffff6a62dc4 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtCore.so.4
#18 0x00007ffff6a63ef1 in QCoreApplicationPrivate::sendPostedEvents(QObject* , int, QThreadData*) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtCore.so.4
#19 0x00007ffff6a90703 in ?? () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtCore.so.4
#20 0x00007ffff553da5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007ffff553e258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007ffff553e429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007ffff6a90a1c in QEventDispatcherGlib::processEvents(QFlags<QEventL oop::ProcessEventsFlag>) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtCore.so.4
#24 0x00007ffff7065c0f in ?? () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtGui.so.4
#25 0x00007ffff6a62115 in QEventLoop::processEvents(QFlags<QEventLoop::Proce ssEventsFlag>) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtCore.so.4
#26 0x00007ffff6a62366 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsF lag>) () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtCore.so.4
#27 0x00007ffff6a641a4 in QCoreApplication::exec() () from /opt/QtSDK/Desktop/Qt/474/gcc/lib/libQtCore.so.4
#28 0x000000000040781f in launchGUI (ip=0x7fffffffe3c6 "127.0.0.1", port=12000) at ../VideoStreamer/main.cpp:36
#29 0x0000000000407795 in main (argc=3, argv=0x7fffffffe068) at ../VideoStreamer/main.cpp:27
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