Version:            (using KDE 4.1.2)
OS:                Linux
Installed from:    Ubuntu Packages

Applicazione: Demone KDE (kded4), segnale SIGSEGV
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[Thread debugging using libthread_db enabled]
[New Thread 0xb61fc8d0 (LWP 5401)]
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[KCrash handler]
#6  0xb7d3fc09 in ?? () from /usr/lib/libkio.so.5
#7  0xb7d41af3 in ?? () from /usr/lib/libkio.so.5
#8  0xb7d41c9b in ?? () from /usr/lib/libkio.so.5
#9  0xb75e0a60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#10 0xb75e17e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#11 0xb761b633 in QSocketNotifier::activated () from /usr/lib/libQtCore.so.4
#12 0xb75e6637 in QSocketNotifier::event () from /usr/lib/libQtCore.so.4
#13 0xb6b5e8ec in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#14 0xb6b6676e in QApplication::notify () from /usr/lib/libQtGui.so.4
#15 0xb7a9a72d in KApplication::notify () from /usr/lib/libkdeui.so.5
#16 0xb75cbe61 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#17 0xb75f670a in ?? () from /usr/lib/libQtCore.so.4
#18 0xb658d6f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#19 0xb6590da3 in ?? () from /usr/lib/libglib-2.0.so.0
#20 0xb6590f61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#21 0xb75f6478 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#22 0xb6bf8ee5 in ?? () from /usr/lib/libQtGui.so.4
#23 0xb75ca52a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#24 0xb75ca6ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#25 0xb75ccda5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#26 0xb6b5e767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#27 0xb801d0a6 in kdemain () from /usr/lib/libkdeinit4_kded4.so
#28 0x080485a2 in _start ()
#0  0xb8050430 in __kernel_vsyscall ()

I had Firefox, Amarok, Thunderbird, Synaptic and Dolphin opened, so I don't exactly know what could be the source of the crash. It is not predicatable nor reproduceable, since the application opened in that time are the apps I'm using everytime and it does not happen regularly. Since I'm new with KDE, the only thing I could think about is that a deamon I'm not aware about starts a new operation and the crash happens.

Thanks in advance!