Application: kontact (4.4.2)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-21-generic x86_64
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
When I close Kontact it is impossible to start it again (not always, but in most cases).
In this case I try to start KOrganizer with the tray icon, and this is when i get this crash.
i have 10.04 but this also happened with 9.10

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f2edf322780 (LWP 1884))]

Thread 2 (Thread 0x7f2ebab87710 (LWP 1996)):
#0  0x00007f2edc3fbf53 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f2ed4f314a9 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f2ed4f318fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f2edd7e6566 in QEventDispatcherGlib::processEvents (this=0x1512f40, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#4  0x00007f2edd7bb992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f2edd7bbd6c in QEventLoop::exec (this=0x7f2ebab86d90, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f2edd6c5d59 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#7  0x00007f2edd79c178 in QInotifyFileSystemWatcherEngine::run (this=0x11a7a20) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f2edd6c8775 in QThreadPrivate::start (arg=0x11a7a20) at thread/qthread_unix.cpp:248
#9  0x00007f2ed74a79ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007f2edc40869d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f2edf322780 (LWP 1884)):
[KCrash Handler]
#5  0x00007f2ede98d84a in KontactInterface::Plugin::part (this=0xd0bee0) at ../../kontactinterface/plugin.cpp:190
#6  0x00007f2ec6bb47e1 in KOrganizerUniqueAppHandler::newInstance (this=0xd2e220) at ../../../../kontact/plugins/korganizer/korg_uniqueapp.cpp:33
#7  0x00007f2ede98f0a9 in KontactInterface::UniqueAppHandler::newInstance (this=0xd2e220, asn_id=<value optimized out>, args=...) at ../../kontactinterface/uniqueapphandler.cpp:129
#8  0x00007f2ede98f114 in KontactInterface::UniqueAppHandler::qt_metacall (this=0xd2e220, _c=QMetaObject::InvokeMetaMethod, _id=13680352, _a=0x7fff3b5f8850) at ./uniqueapphandler.moc:79
#9  0x00007f2edac09486 in QDBusConnectionPrivate::deliverCall (this=<value optimized out>, object=<value optimized out>, msg=<value optimized out>, metaTypes=..., slotIdx=<value optimized out>)
    at qdbusintegrator.cpp:904
#10 0x00007f2edac0a6ef in QDBusConnectionPrivate::activateCall (this=<value optimized out>, object=0xd2e220, flags=272, msg=...) at qdbusintegrator.cpp:809
#11 0x00007f2edac0af0e in QDBusConnectionPrivate::activateObject (this=<value optimized out>, node=<value optimized out>, msg=..., pathStartPos=<value optimized out>) at qdbusintegrator.cpp:1383
#12 0x00007f2edac0b468 in QDBusActivateObjectEvent::placeMetaCall (this=0x2564fe0) at qdbusintegrator.cpp:1477
#13 0x00007f2edd7ccd49 in QObject::event (this=0xd2e220, e=0x2564fe0) at kernel/qobject.cpp:1248
#14 0x00007f2edcb7622c in QApplicationPrivate::notify_helper (this=0x76ded0, receiver=0xd2e220, e=0x2564fe0) at kernel/qapplication.cpp:4300
#15 0x00007f2edcb7c6fb in QApplication::notify (this=0x7fff3b5f95d0, receiver=0xd2e220, e=0x2564fe0) at kernel/qapplication.cpp:4183
#16 0x00007f2ede1a5526 in KApplication::notify (this=0x7fff3b5f95d0, receiver=0xd2e220, event=0x2564fe0) at ../../kdeui/kernel/kapplication.cpp:302
#17 0x00007f2edd7bd06c in QCoreApplication::notifyInternal (this=0x7fff3b5f95d0, receiver=0xd2e220, event=0x2564fe0) at kernel/qcoreapplication.cpp:704
#18 0x00007f2edd7bf7e7 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x736620) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x736620) at kernel/qcoreapplication.cpp:1345
#20 0x00007f2edd7e69d3 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#21 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#22 0x00007f2ed4f2d8c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#23 0x00007f2ed4f31748 in ?? () from /lib/libglib-2.0.so.0
#24 0x00007f2ed4f318fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#25 0x00007f2edd7e6513 in QEventDispatcherGlib::processEvents (this=0x735d70, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#26 0x00007f2edcc2646e in QGuiEventDispatcherGlib::processEvents (this=0xd0bee0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007f2edd7bb992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#28 0x00007f2edd7bbd6c in QEventLoop::exec (this=0x7fff3b5f9510, flags=) at kernel/qeventloop.cpp:201
#29 0x00007f2edd7bfaab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#30 0x0000000000403e8e in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../kontact/src/main.cpp:224

Possible duplicates by query: bug 235668, bug 234971, bug 218747, bug 194268.

Reported using DrKonqi