Application that crashed: 
Version of the application: 1.0
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-14-generic-pae i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
The crash occur several time during browse on Samba share.

 -- Backtrace:
Application: Jockey (), signal: Segmentation fault
[KCrash Handler]
#5  0xb60e21ac in QWidget::metric(QPaintDevice::PaintDeviceMetric) const () from /usr/lib/libQtGui.so.4
#6  0xb62443eb in QFont::QFont(QFont const&, QPaintDevice*) () from /usr/lib/libQtGui.so.4
#7  0xb60a0d47 in QWidgetPrivate::updateFont(QFont const&) () from /usr/lib/libQtGui.so.4
#8  0xb60a0c78 in QWidgetPrivate::resolveFont() () from /usr/lib/libQtGui.so.4
#9  0xb60ab3a8 in QWidget::setParent(QWidget*, QFlags<Qt::WindowType>) () from /usr/lib/libQtGui.so.4
#10 0xb60abb1e in QWidget::setParent(QWidget*) () from /usr/lib/libQtGui.so.4
#11 0xb60b2c86 in QWidgetAction::releaseWidget(QWidget*) () from /usr/lib/libQtGui.so.4
#12 0xb649c122 in QMenu::~QMenu() () from /usr/lib/libQtGui.so.4
#13 0xb4b686bf in KMenu::~KMenu() () from /usr/lib/libkdeui.so.5
#14 0xb4b0bbdd in KSystemTrayIcon::~KSystemTrayIcon() () from /usr/lib/libkdeui.so.5
#15 0xb5036891 in sipKSystemTrayIcon::~sipKSystemTrayIcon() () from /usr/lib/pymodules/python2.6/PyKDE4/kdeui.so
#16 0xb726c46f in QObjectPrivate::deleteChildren() () from /usr/lib/libQtCore.so.4
#17 0xb60a385b in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#18 0xb653f184 in QDialog::~QDialog() () from /usr/lib/libQtGui.so.4
#19 0xb6d6e2cf in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtGui.so
#20 0xb6d0c497 in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtGui.so
#21 0xb6d0c4da in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtGui.so
#22 0xb7512a1b in ?? () from /usr/lib/pymodules/python2.6/sip.so
#23 0xb7512a51 in ?? () from /usr/lib/pymodules/python2.6/sip.so
#24 0x080a8ee3 in ?? ()
#25 0x0808e634 in ?? ()
#26 0x080a8f31 in ?? ()
#27 0x0808cf19 in ?? ()
#28 0x0808f377 in PyDict_SetItem ()
#29 0x08090cd3 in _PyModule_Clear ()
#30 0x080ed815 in PyImport_Cleanup ()
#31 0x080fa305 in Py_Finalize ()
#32 0x080f9daf in ?? ()
#33 0x080f9f9d in PyErr_PrintEx ()
#34 0x080fa1d2 in PyErr_Print ()
#35 0x080facfb in PyRun_SimpleFileExFlags ()
#36 0x0805c8d8 in Py_Main ()
#37 0x0805baeb in main ()

Reported using DrKonqi