Program received signal SIGSEGV, Segmentation fault. #0 [0xb7737d2c] #1 0xb5b33d7f in QWidget::mapTo(QWidget*, QPoint const&) const from /usr/lib/i386-linux-gnu/libQtGui.so.4+0x6f #2 /usr/lib/i386-linux-gnu/libQtGui.so.4(+0x382d71) [0xb5d35d71] #3 /usr/lib/i386-linux-gnu/libQtGui.so.4(+0x384326) [0xb5d37326] #4 0xb5b34057 in QWidgetPrivate::syncBackingStore() from /usr/lib/i386-linux-gnu/libQtGui.so.4+0xa7 #5 0xb5b48626 in QWidget::event(QEvent*) from /usr/lib/i386-linux-gnu/libQtGui.so.4+0x536 #6 0xb5f72112 in QMainWindow::event(QEvent*) from /usr/lib/i386-linux-gnu/libQtGui.so.4+0x122 #7 0xb716e25b in Gui::MainWindow::event(QEvent*) from /usr/lib/freecad-daily/lib/libFreeCADGui.so+0x6b #8 0xb5ae964a in QApplicationPrivate::notify_helper(QObject*, QEvent*) from /usr/lib/i386-linux-gnu/libQtGui.so.4+0x9a #9 0xb5af0951 in QApplication::notify(QObject*, QEvent*) from /usr/lib/i386-linux-gnu/libQtGui.so.4+0x2e1 #10 0xb6eb3b7d in Gui::GUIApplication::notify(QObject*, QEvent*) from /usr/lib/freecad-daily/lib/libFreeCADGui.so+0x5d #11 0xb583157a in QCoreApplication::notifyInternal(QObject*, QEvent*) from /usr/lib/i386-linux-gnu/libQtCore.so.4+0x8a #12 0xb5835266 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) from /usr/lib/i386-linux-gnu/libQtCore.so.4+0x3a6 #13 0xb5835595 in QCoreApplication::sendPostedEvents(QObject*, int) from /usr/lib/i386-linux-gnu/libQtCore.so.4+0x25 #14 /usr/lib/i386-linux-gnu/libQtCore.so.4(+0x1b6f91) [0xb5863f91] #15 /lib/i386-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x299) [0xb1a39ee9] #16 /lib/i386-linux-gnu/libglib-2.0.so.0(+0x47189) [0xb1a3a189] #17 /lib/i386-linux-gnu/libglib-2.0.so.0(g_main_context_iteration+0x34) [0xb1a3a254] #18 0xb58640f5 in QEventDispatcherGlib::processEvents(QFlags) from /usr/lib/i386-linux-gnu/libQtCore.so.4+0x75 #19 /usr/lib/i386-linux-gnu/libQtGui.so.4(+0x1f3b66) [0xb5ba6b66] #20 0xb582fc5d in QEventLoop::processEvents(QFlags) from /usr/lib/i386-linux-gnu/libQtCore.so.4+0x4d #21 0xb582ffee in QEventLoop::exec(QFlags) from /usr/lib/i386-linux-gnu/libQtCore.so.4+0x1ae #22 0xb58365f6 in QCoreApplication::exec() from /usr/lib/i386-linux-gnu/libQtCore.so.4+0x96 #23 0xb5ae74e4 in QApplication::exec() from /usr/lib/i386-linux-gnu/libQtGui.so.4+0x24 #24 0xb6e69d69 in Gui::Application::runApplication() from /usr/lib/freecad-daily/lib/libFreeCADGui.so+0x16a9 #25 freecad-daily(main+0x645) [0x804a985] #26 /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf7) [0xb537a637] #27 freecad-daily() [0x804bc58]