.
Thread 1 (process 3444):
#0  0xb50cfcdc in ippAddString () from /usr/lib/libcups.so.2
#1  0xb50cfe7f in ippNewRequest () from /usr/lib/libcups.so.2
#2  0xb50f052a in ?? () from /var/lib/python-support/python2.6/cups.so
#3  0x080de572 in PyEval_EvalFrameEx ()
#4  0x080e00c8 in PyEval_EvalCodeEx ()
#5  0x0816898f in ?? ()
#6  0x0806114a in PyObject_Call ()
#7  0x0806804a in ?? ()
#8  0x0806114a in PyObject_Call ()
#9  0x080d8932 in PyEval_CallObjectWithKeywords ()
#10 0xb8014ca7 in sip_api_invoke_slot ()
   from /usr/lib/python2.6/dist-packages/sip.so
#11 0xb7b5f021 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtCore.so
#12 0xb7b5fc07 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtCore.so
#13 0xb7b5fcae in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtCore.so
#14 0xb7a20cb8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#15 0xb7a21942 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#16 0xb7a260b7 in ?? () from /usr/lib/libQtCore.so.4
#17 0xb7a261dc in ?? () from /usr/lib/libQtCore.so.4
#18 0xb7a1b16f in QObject::event () from /usr/lib/libQtCore.so.4
#19 0xb681ff5c in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#20 0xb682825e in QApplication::notify () from /usr/lib/libQtGui.so.4
#21 0xb538f76d in KApplication::notify () from /usr/lib/libkdeui.so.5
#22 0xb5954076 in sipKApplication::notify ()
   from /usr/lib/python2.6/dist-packages/PyKDE4/kdeui.so
#23 0xb7a0aa4b in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#24 0xb7a39d81 in ?? () from /usr/lib/libQtCore.so.4
#25 0xb7a364f0 in ?? () from /usr/lib/libQtCore.so.4
#26 0xb7753a58 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0xb7756fbb in ?? () from /usr/lib/libglib-2.0.so.0
#28 0xb7757138 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#29 0xb7a36448 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#30 0xb68c1425 in ?? () from /usr/lib/libQtGui.so.4
#31 0xb7a0907a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#32 0xb7a094ba in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#33 0xb7a0b969 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#34 0xb681fdd7 in QApplication::exec () from /usr/lib/libQtGui.so.4
#35 0xb74f8f02 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#36 0x080de572 in PyEval_EvalFrameEx ()
#37 0x080e00c8 in PyEval_EvalCodeEx ()
#38 0x080e0227 in PyEval_EvalCode ()
#39 0x080fe2e1 in PyRun_FileExFlags ()
#40 0x080fe632 in PyRun_SimpleFileExFlags ()
#41 0x0805c8b2 in Py_Main ()
#42 0x0805b9a2 in main ()