Application that crashed: konsole
Version of the application: 2.3.3
KDE Version: 4.3.3 (KDE 4.3.3)
Qt Version: 4.5.3
Operating System: Linux 2.6.31-gentoo-r6 x86_64

What I was doing when the application crashed:
If I want to access an open konsole after a longer period  of idle, it is not possible to enter commands. The keyboard seems not to work anymore. But in other applications it is possible. Killing the konsole and starting a new konsole session does not work, no window will open. After rebooting a crash window will be shown.

 -- Backtrace:
Application: Konsole (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#5  0x00007ff2a86a5c96 in ?? () from /usr/lib64/libkonsoleprivate.so
#6  0x00007ff2a86aa96d in Konsole::ViewManager::viewProperties () from /usr/lib64/libkonsoleprivate.so
#7  0x00007ff2a88f6045 in ?? () from /usr/lib64/libkdeinit4_konsole.so
#8  0x00007ff2b1ad9980 in KMainWindow::closeEvent () from /usr/lib64/libkdeui.so.5
#9  0x00007ff2b0b03ba6 in QWidget::event () from /usr/lib64/qt4/libQtGui.so.4
#10 0x00007ff2b0de5429 in QMainWindow::event () from /usr/lib64/qt4/libQtGui.so.4
#11 0x00007ff2b1b0e919 in KXmlGuiWindow::event () from /usr/lib64/libkdeui.so.5
#12 0x00007ff2b0ac0337 in QApplicationPrivate::notify_helper () from /usr/lib64/qt4/libQtGui.so.4
#13 0x00007ff2b0ac74d2 in QApplication::notify () from /usr/lib64/qt4/libQtGui.so.4
#14 0x00007ff2b1a1ce1c in KApplication::notify () from /usr/lib64/libkdeui.so.5
#15 0x00007ff2b34e55b6 in QCoreApplication::notifyInternal () from /usr/lib64/qt4/libQtCore.so.4
#16 0x00007ff2b0b048bf in QWidgetPrivate::close_helper () from /usr/lib64/qt4/libQtGui.so.4
#17 0x00007ff2b0b0a925 in QApplication::x11ClientMessage () from /usr/lib64/qt4/libQtGui.so.4
#18 0x00007ff2b0b17642 in QApplication::x11ProcessEvent () from /usr/lib64/qt4/libQtGui.so.4
#19 0x00007ff2b0b391b3 in ?? () from /usr/lib64/qt4/libQtGui.so.4
#20 0x00007ff2af566903 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#21 0x00007ff2af56985c in ?? () from /usr/lib/libglib-2.0.so.0
#22 0x00007ff2af5699de in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#23 0x00007ff2b3506533 in QEventDispatcherGlib::processEvents () from /usr/lib64/qt4/libQtCore.so.4
#24 0x00007ff2b0b38b26 in ?? () from /usr/lib64/qt4/libQtGui.so.4
#25 0x00007ff2b34e4324 in QEventLoop::processEvents () from /usr/lib64/qt4/libQtCore.so.4
#26 0x00007ff2b34e44ab in QEventLoop::exec () from /usr/lib64/qt4/libQtCore.so.4
#27 0x00007ff2b34e5ff4 in QCoreApplication::exec () from /usr/lib64/qt4/libQtCore.so.4
#28 0x00007ff2a88f828d in kdemain () from /usr/lib64/libkdeinit4_konsole.so
#29 0x0000000000407385 in _start ()

Reported using DrKonqi