Application: kontact (4.9.1)
KDE Platform Version: 4.9.1
Qt Version: 4.8.3
Operating System: Linux 3.5.0-16-generic x86_64
Distribution: Ubuntu quantal (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
I changed settings (and removing views) in Kontact and applied them. 
- Unusual behavior I noticed:
In addition to Kontact also the plasma-desktop crashed.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7987b6a7c0 (LWP 6669))]

Thread 3 (Thread 0x7f797ff50700 (LWP 6670)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f79990deb2d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f79990dec39 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f799462ae9a in start_thread (arg=0x7f797ff50700) at pthread_create.c:308
#4  0x00007f7999e0739d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f797f64f700 (LWP 6671)):
#0  0x00007f7999dfb9e3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f799415bd84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f799415bea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f799a57bc16 in QEventDispatcherGlib::processEvents (this=0x7f79780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f799a54c2bf in QEventLoop::processEvents (this=this@entry=0x7f797f64edc0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f799a54c548 in QEventLoop::exec (this=0x7f797f64edc0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f799a44db10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f799a450aec in QThreadPrivate::start (arg=0x10e3c50) at thread/qthread_unix.cpp:338
#8  0x00007f799462ae9a in start_thread (arg=0x7f797f64f700) at pthread_create.c:308
#9  0x00007f7999e0739d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7987b6a7c0 (LWP 6669)):
[KCrash Handler]
#6  0x00000000010e0d98 in ?? ()
#7  0x00007f799a56576e in QObject::disconnect (sender=0x23e5e80, signal=0x0, receiver=0x23ef630, method=0x25f68f9 "calendarChanged()") at kernel/qobject.cpp:2910
#8  0x00007f797d47dd84 in disconnect (member=0x7f797d4e1d2a "2calendarChanged()", receiver=<optimized out>, this=0x23e5e80) at /usr/include/qt4/QtCore/qobject.h:252
#9  CalendarSupport::FreeBusyManager::setCalendar (this=0x23e5e80, c=0x3464c10) at ../../calendarsupport/freebusymanager.cpp:711
#10 0x00007f792baf0c6e in CalendarView::setCalendar (this=0x1649cf0, cal=0x3464c10) at ../../korganizer/calendarview.cpp:267
#11 0x00007f792bad6fec in ActionManager::createCalendarAkonadi (this=0x2279590) at ../../korganizer/actionmanager.cpp:315
#12 0x00007f79303fd2c6 in KOrganizerPart::KOrganizerPart (this=this@entry=0x2849f10, parentWidget=parentWidget@entry=0x1246130, parent=parent@entry=0x1246130, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../korganizer/korganizer_part.cpp:74
#13 0x00007f79303fdb0f in KPluginFactory::createPartInstance<KOrganizerPart> (parentWidget=0x1246130, parent=0x1246130, args=...) at /usr/include/KDE/../kpluginfactory.h:483
#14 0x00007f799aaa8195 in KPluginFactory::create (this=0x1d669b0, iface=0x7f7999b04200 <qt_meta_stringdata_KParts__ReadOnlyPart> "KParts::ReadOnlyPart", parentWidget=0x1246130, parent=0x1246130, args=..., keyword=...) at ../../kdecore/util/kpluginfactory.cpp:203
#15 0x00007f799c061a7f in create<KParts::ReadOnlyPart> (args=..., parent=0x1246130, this=<optimized out>) at /usr/include/kpluginfactory.h:507
#16 KontactInterface::Core::createPart (this=0x1246130, libname=0x13f2a58 "korganizerpart") at ../../kontactinterface/core.cpp:87
#17 0x00007f797c28d635 in KOrganizerPlugin::createPart (this=0x14856d0) at ../../../../kontact/plugins/korganizer/korganizerplugin.cpp:103
#18 0x00007f799c064089 in KontactInterface::Plugin::part (this=0x14856d0) at ../../kontactinterface/plugin.cpp:191
#19 0x00007f799c49e424 in Kontact::MainWindow::selectPlugin (this=0x1246130, plugin=0x7fff9ef8d840) at ../../../kontact/src/mainwindow.cpp:836
#20 0x00007f799a562f5f in QMetaObject::activate (sender=0x1227830, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff9ef8e250) at kernel/qobject.cpp:3547
#21 0x00007f799c4a0e9f in Kontact::SidePaneBase::pluginSelected (this=<optimized out>, _t1=0x1489ae0) at ./sidepanebase.moc:104
#22 0x00007f799a562f5f in QMetaObject::activate (sender=0x12e5ad0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff9ef8e3a0) at kernel/qobject.cpp:3547
#23 0x00007f799c4a17ef in Kontact::Navigator::pluginActivated (this=this@entry=0x12e5ad0, _t1=0x1489ae0) at ./iconsidepane.moc:110
#24 0x00007f799c4a186a in Kontact::Navigator::slotCurrentChanged (this=0x12e5ad0, current=...) at ../../../kontact/src/iconsidepane.cpp:477
#25 0x00007f799a562f5f in QMetaObject::activate (sender=0x124a710, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff9ef8e530) at kernel/qobject.cpp:3547
#26 0x00007f799b48c0aa in QItemSelectionModel::currentChanged (this=this@entry=0x124a710, _t1=..., _t2=...) at .moc/release-shared/moc_qitemselectionmodel.cpp:173
#27 0x00007f799b48c199 in QItemSelectionModel::setCurrentIndex (this=0x124a710, index=..., command=...) at itemviews/qitemselectionmodel.cpp:1175
#28 0x00007f799b43dcaa in QAbstractItemView::mousePressEvent (this=0x12e5ad0, event=<optimized out>) at itemviews/qabstractitemview.cpp:1682
#29 0x00007f799af7dcf3 in QWidget::event (this=0x12e5ad0, event=0x7fff9ef8f270) at kernel/qwidget.cpp:8367
#30 0x00007f799b32cb66 in QFrame::event (this=0x12e5ad0, e=0x7fff9ef8f270) at widgets/qframe.cpp:557
#31 0x00007f799b43859b in QAbstractItemView::viewportEvent (this=0x12e5ad0, event=0x7fff9ef8f270) at itemviews/qabstractitemview.cpp:1644
#32 0x00007f799a54d6d6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x129c2c0, event=0x7fff9ef8f270) at kernel/qcoreapplication.cpp:1025
#33 0x00007f799af2de6c in QApplicationPrivate::notify_helper (this=this@entry=0x10d2ad0, receiver=receiver@entry=0x129c2c0, e=e@entry=0x7fff9ef8f270) at kernel/qapplication.cpp:4558
#34 0x00007f799af32b6b in QApplication::notify (this=<optimized out>, receiver=0x129c2c0, e=0x7fff9ef8f270) at kernel/qapplication.cpp:4105
#35 0x00007f799bc35cb6 in KApplication::notify (this=0x7fff9ef8ff50, receiver=0x129c2c0, event=0x7fff9ef8f270) at ../../kdeui/kernel/kapplication.cpp:311
#36 0x00007f799a54d56e in QCoreApplication::notifyInternal (this=0x7fff9ef8ff50, receiver=0x129c2c0, event=0x7fff9ef8f270) at kernel/qcoreapplication.cpp:915
#37 0x00007f799af2ecd3 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#38 QApplicationPrivate::sendMouseEvent (receiver=0x129c2c0, event=0x7fff9ef8f270, alienWidget=0x129c2c0, nativeWidget=0x1227830, buttonDown=0x7f799ba0a308 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3173
#39 0x00007f799afac554 in QETWidget::translateMouseEvent (this=this@entry=0x1227830, event=event@entry=0x7fff9ef8f9f0) at kernel/qapplication_x11.cpp:4622
#40 0x00007f799afab44f in QApplication::x11ProcessEvent (this=0x7fff9ef8ff50, event=0x7fff9ef8f9f0) at kernel/qapplication_x11.cpp:3737
#41 0x00007f799afd2fa2 in x11EventSourceDispatch (s=0x10d5320, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#42 0x00007f799415bab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f799415bde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f799415bea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f799a57bbf6 in QEventDispatcherGlib::processEvents (this=0x1098c10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#46 0x00007f799afd2c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#47 0x00007f799a54c2bf in QEventLoop::processEvents (this=this@entry=0x7fff9ef8fdc0, flags=...) at kernel/qeventloop.cpp:149
#48 0x00007f799a54c548 in QEventLoop::exec (this=0x7fff9ef8fdc0, flags=...) at kernel/qeventloop.cpp:204
#49 0x00007f799a551708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#50 0x0000000000403339 in main (argc=1, argv=0x7fff9ef90098) at ../../../kontact/src/main.cpp:219

Possible duplicates by query: bug 305876, bug 300918, bug 289810.

Reported using DrKonqi