Application: kontact (4.11 rc2)
KDE Platform Version: 4.10.97
Qt Version: 4.8.4
Operating System: Linux 3.8.0-28-generic x86_64
Distribution: Ubuntu 13.04

-- Information about the crash:
- What I was doing when the application crashed:

I was using KOrganizer to check on some Google calendars and switched over to KMail and it crashed.

The crash can be reproduced sometimes.

-- 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 0x7fbcc36d27c0 (LWP 8289))]

Thread 5 (Thread 0x7fbca4e6d700 (LWP 8293)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbcbe52f575 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fbcbe52f5c9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fbcbacb2f8e in start_thread (arg=0x7fbca4e6d700) at pthread_create.c:311
#4  0x00007fbcc0c60e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7fbc6456a700 (LWP 8295)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbcbe2759f9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fbcbe55dcde in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fbcbacb2f8e in start_thread (arg=0x7fbc6456a700) at pthread_create.c:311
#4  0x00007fbcc0c60e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7fbc550cf700 (LWP 8329)):
#0  0x00007fbcba81f359 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fbcba81f5b9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbcba7e01c2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbcba7e0304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbcc13d9036 in QEventDispatcherGlib::processEvents (this=0x7fbc480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fbcc13a938f in QEventLoop::processEvents (this=this@entry=0x7fbc550ced90, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fbcc13a9618 in QEventLoop::exec (this=this@entry=0x7fbc550ced90, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fbcc12ab410 in QThread::exec (this=this@entry=0x1125630) at thread/qthread.cpp:542
#8  0x00007fbcc138aedf in QInotifyFileSystemWatcherEngine::run (this=0x1125630) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00007fbcc12adbec in QThreadPrivate::start (arg=0x1125630) at thread/qthread_unix.cpp:338
#10 0x00007fbcbacb2f8e in start_thread (arg=0x7fbc550cf700) at pthread_create.c:311
#11 0x00007fbcc0c60e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7fbc4f7fe700 (LWP 8349)):
#0  0x00007fbcbacb5075 in __GI___pthread_mutex_lock (mutex=0x7fbc3c000a60) at pthread_mutex_lock.c:95
#1  0x00007fbcba81f5c1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbcba7dfc74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbcba7e0175 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbcba7e0304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbcc13d9036 in QEventDispatcherGlib::processEvents (this=0x7fbc3c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fbcc13a938f in QEventLoop::processEvents (this=this@entry=0x7fbc4f7fddc0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fbcc13a9618 in QEventLoop::exec (this=this@entry=0x7fbc4f7fddc0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fbcc12ab410 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#9  0x00007fbcc12adbec in QThreadPrivate::start (arg=0xa0ccb0) at thread/qthread_unix.cpp:338
#10 0x00007fbcbacb2f8e in start_thread (arg=0x7fbc4f7fe700) at pthread_create.c:311
#11 0x00007fbcc0c60e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fbcc36d27c0 (LWP 8289)):
[KCrash Handler]
#6  0x00007fbcb75f4a50 in KCalCore::Incidence::hasRecurrenceId() const () from /usr/lib/libkcalcore.so.4
#7  0x00007fbc39b6ee96 in EventViews::AgendaView::displayIncidence(Akonadi::Item const&, bool) () from /usr/lib/libeventviews.so.4
#8  0x00007fbc39b70bc1 in EventViews::AgendaView::fillAgenda() () from /usr/lib/libeventviews.so.4
#9  0x00007fbc39b6b819 in EventViews::AgendaView::updateConfig() () from /usr/lib/libeventviews.so.4
#10 0x00007fbc39f09e91 in ?? () from /usr/lib/libkorganizerprivate.so.4
#11 0x00007fbcc13bf0ef in QMetaObject::activate (sender=0x2570ea0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#12 0x00007fbc39e90960 in CalendarView::updateConfig(QByteArray const&) () from /usr/lib/libkorganizerprivate.so.4
#13 0x00007fbc39e90c42 in CalendarView::updateConfig() () from /usr/lib/libkorganizerprivate.so.4
#14 0x00007fbc39ea34e5 in ?? () from /usr/lib/libkorganizerprivate.so.4
#15 0x00007fbcc13bf0ef in QMetaObject::activate (sender=0x26668c0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#16 0x00007fbc39e8a5d2 in ?? () from /usr/lib/libkorganizerprivate.so.4
#17 0x00007fbcc13bf0ef in QMetaObject::activate (sender=sender@entry=0x20014c0, m=m@entry=0x7fbcc28367a0 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff0d0fd2c0) at kernel/qobject.cpp:3539
#18 0x00007fbcc1d8e152 in QAction::triggered (this=this@entry=0x20014c0, _t1=false) at .moc/release-shared/moc_qaction.cpp:277
#19 0x00007fbcc1d8f580 in QAction::activate (this=this@entry=0x20014c0, event=event@entry=QAction::Trigger) at kernel/qaction.cpp:1257
#20 0x00007fbcc21cdaa3 in QMenuPrivate::activateCausedStack (this=this@entry=0x4400730, causedStack=..., action=action@entry=0x20014c0, action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:1038
#21 0x00007fbcc21d2d69 in QMenuPrivate::activateAction (this=0x4400730, action=0x20014c0, action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:1130
#22 0x00007fbcc21d685d in QMenu::mouseReleaseEvent (this=this@entry=0x2751e900, e=e@entry=0x7fff0d0fde60) at widgets/qmenu.cpp:2372
#23 0x00007fbcc2b55690 in KMenu::mouseReleaseEvent (this=0x2751e900, e=0x7fff0d0fde60) at ../../kdeui/widgets/kmenu.cpp:464
#24 0x00007fbcc1de1a89 in QWidget::event (this=this@entry=0x2751e900, event=event@entry=0x7fff0d0fde60) at kernel/qwidget.cpp:8375
#25 0x00007fbcc21d454b in QMenu::event (this=0x2751e900, e=0x7fff0d0fde60) at widgets/qmenu.cpp:2481
#26 0x00007fbcc1d948ec in QApplicationPrivate::notify_helper (this=this@entry=0xa0bb00, receiver=receiver@entry=0x2751e900, e=e@entry=0x7fff0d0fde60) at kernel/qapplication.cpp:4567
#27 0x00007fbcc1d97a33 in QApplication::notify (this=this@entry=0x7fff0d100250, receiver=receiver@entry=0x2751e900, e=e@entry=0x7fff0d0fde60) at kernel/qapplication.cpp:4110
#28 0x00007fbcc2a9e916 in KApplication::notify (this=0x7fff0d100250, receiver=0x2751e900, event=0x7fff0d0fde60) at ../../kdeui/kernel/kapplication.cpp:311
#29 0x00007fbcc13aa63e in QCoreApplication::notifyInternal (this=0x7fff0d100250, receiver=receiver@entry=0x2751e900, event=event@entry=0x7fff0d0fde60) at kernel/qcoreapplication.cpp:946
#30 0x00007fbcc1d9a933 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#31 QApplicationPrivate::sendMouseEvent (receiver=0x2751e900, event=event@entry=0x7fff0d0fde60, alienWidget=0x0, nativeWidget=nativeWidget@entry=0x2751e900, buttonDown=buttonDown@entry=0x7fbcc2872308 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#32 0x00007fbcc1e0fd1c in QETWidget::translateMouseEvent (this=this@entry=0x2751e900, event=event@entry=0x7fff0d0fe5e0) at kernel/qapplication_x11.cpp:4565
#33 0x00007fbcc1e0ee81 in QApplication::x11ProcessEvent (this=0x7fff0d100250, event=event@entry=0x7fff0d0fe5e0) at kernel/qapplication_x11.cpp:3746
#34 0x00007fbcc1e3a042 in x11EventSourceDispatch (s=0xa09c00, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#35 0x00007fbcba7dff05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007fbcba7e0248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fbcba7e0304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fbcc13d9016 in QEventDispatcherGlib::processEvents (this=0x9c3690, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#39 0x00007fbcc1e3a13e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x00007fbcc13a938f in QEventLoop::processEvents (this=this@entry=0x7fff0d0fe9c0, flags=...) at kernel/qeventloop.cpp:149
#41 0x00007fbcc13a9618 in QEventLoop::exec (this=this@entry=0x7fff0d0fe9c0, flags=...) at kernel/qeventloop.cpp:204
#42 0x00007fbcc21d1dd5 in QMenu::exec (this=0x296e1290, p=..., action=0x0) at widgets/qmenu.cpp:2125
#43 0x00007fbcbfc66137 in Akonadi::EntityTreeView::contextMenuEvent(QContextMenuEvent*) () from /usr/lib/libakonadi-kde.so.4
#44 0x00007fbcc1de17de in QWidget::event (this=this@entry=0x2671110, event=event@entry=0x7fff0d0ff5a0) at kernel/qwidget.cpp:8553
#45 0x00007fbcc2194486 in QFrame::event (this=0x2671110, e=0x7fff0d0ff5a0) at widgets/qframe.cpp:557
#46 0x00007fbcc22aaa2b in QAbstractItemView::viewportEvent (this=this@entry=0x2671110, event=event@entry=0x7fff0d0ff5a0) at itemviews/qabstractitemview.cpp:1644
#47 0x00007fbcc22ea6d1 in QTreeView::viewportEvent (this=0x2671110, event=0x7fff0d0ff5a0) at itemviews/qtreeview.cpp:1257
#48 0x00007fbcc13aa7a6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0xa0bb00, receiver=receiver@entry=0x266cab0, event=event@entry=0x7fff0d0ff5a0) at kernel/qcoreapplication.cpp:1056
#49 0x00007fbcc1d948bc in QApplicationPrivate::notify_helper (this=this@entry=0xa0bb00, receiver=receiver@entry=0x266cab0, e=e@entry=0x7fff0d0ff5a0) at kernel/qapplication.cpp:4563
#50 0x00007fbcc1d97735 in QApplication::notify (this=this@entry=0x7fff0d100250, receiver=receiver@entry=0x266cab0, e=e@entry=0x7fff0d0ff5a0) at kernel/qapplication.cpp:4189
#51 0x00007fbcc2a9e916 in KApplication::notify (this=0x7fff0d100250, receiver=0x266cab0, event=0x7fff0d0ff5a0) at ../../kdeui/kernel/kapplication.cpp:311
#52 0x00007fbcc13aa63e in QCoreApplication::notifyInternal (this=0x7fff0d100250, receiver=receiver@entry=0x266cab0, event=event@entry=0x7fff0d0ff5a0) at kernel/qcoreapplication.cpp:946
#53 0x00007fbcc1e0feb1 in sendSpontaneousEvent (event=0x7fff0d0ff5a0, receiver=0x266cab0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#54 QETWidget::translateMouseEvent (this=this@entry=0x25f4f30, event=event@entry=0x7fff0d0ffcf0) at kernel/qapplication_x11.cpp:4636
#55 0x00007fbcc1e0ee81 in QApplication::x11ProcessEvent (this=0x7fff0d100250, event=event@entry=0x7fff0d0ffcf0) at kernel/qapplication_x11.cpp:3746
#56 0x00007fbcc1e3a042 in x11EventSourceDispatch (s=0xa09c00, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#57 0x00007fbcba7dff05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#58 0x00007fbcba7e0248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#59 0x00007fbcba7e0304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#60 0x00007fbcc13d9016 in QEventDispatcherGlib::processEvents (this=0x9c3690, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#61 0x00007fbcc1e3a13e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#62 0x00007fbcc13a938f in QEventLoop::processEvents (this=this@entry=0x7fff0d1000c0, flags=...) at kernel/qeventloop.cpp:149
#63 0x00007fbcc13a9618 in QEventLoop::exec (this=this@entry=0x7fff0d1000c0, flags=...) at kernel/qeventloop.cpp:204
#64 0x00007fbcc13aecf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#65 0x00000000004033a9 in ?? ()
#66 0x00007fbcc0b88ea5 in __libc_start_main (main=0x402bb0, argc=1, ubp_av=0x7fff0d100398, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff0d100388) at libc-start.c:260
#67 0x00000000004038e1 in _start ()

Reported using DrKonqi