Application: kontact (4.4.2)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-24-generic x86_64
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
I am pretty sure it is the same problem as described in the alleged duplicate.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fac64f49780 (LWP 10597))]

Thread 2 (Thread 0x7fac3aeba710 (LWP 10617)):
#0  0x00007fac62025fb3 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fac5ab5a4a9 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007fac5ab5a8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007fac63411566 in QEventDispatcherGlib::processEvents (this=0x1ec2d10, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#4  0x00007fac633e6992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007fac633e6d6c in QEventLoop::exec (this=0x7fac3aeb9d90, flags=) at kernel/qeventloop.cpp:201
#6  0x00007fac632f0d59 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#7  0x00007fac633c7178 in QInotifyFileSystemWatcherEngine::run (this=0x1ec2140) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fac632f3775 in QThreadPrivate::start (arg=0x1ec2140) at thread/qthread_unix.cpp:248
#9  0x00007fac5d0d19ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007fac6203272d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fac64f49780 (LWP 10597)):
[KCrash Handler]
#5  QString (this=0x464a4a524c49756c) at /usr/include/qt4/QtCore/qstring.h:714
#6  KontactInterface::Plugin::identifier (this=0x464a4a524c49756c) at ../../kontactinterface/plugin.cpp:101
#7  0x00007fac64b66e34 in Kontact::MainWindow::activateInitialPluginModule (this=<value optimized out>) at ../../../kontact/src/mainwindow.cpp:289
#8  0x0000000000404722 in KontactApp::newInstance (this=0x7fff113057f0) at ../../../kontact/src/main.cpp:149
#9  0x00007fac63dd76b6 in KUniqueApplicationAdaptor::newInstance (this=0x8393b0, asn_id=<value optimized out>, args=...) at ../../kdeui/kernel/kuniqueapplication.cpp:454
#10 0x00007fac63dd7cf6 in KUniqueApplicationAdaptor::qt_metacall (this=0x8393b0, _c=QMetaObject::InvokeMetaMethod, _id=16064160, _a=0x7fff113049b0) at ./kuniqueapplication_p.moc:81
#11 0x00007fac60833486 in QDBusConnectionPrivate::deliverCall (this=<value optimized out>, object=<value optimized out>, msg=<value optimized out>, metaTypes=..., slotIdx=<value optimized out>)
    at qdbusintegrator.cpp:904
#12 0x00007fac6083474b in QDBusConnectionPrivate::activateCall (this=<value optimized out>, object=0x8393b0, flags=337, msg=...) at qdbusintegrator.cpp:816
#13 0x00007fac608351cd in QDBusConnectionPrivate::activateObject (this=<value optimized out>, node=<value optimized out>, msg=..., pathStartPos=<value optimized out>) at qdbusintegrator.cpp:1364
#14 0x00007fac60835468 in QDBusActivateObjectEvent::placeMetaCall (this=0x1359e60) at qdbusintegrator.cpp:1477
#15 0x00007fac633f7d49 in QObject::event (this=0x7fff113057f0, e=0x1359e60) at kernel/qobject.cpp:1248
#16 0x00007fac627a559d in QApplication::event (this=0x7fff113057f0, e=0x1359e60) at kernel/qapplication.cpp:2353
#17 0x00007fac627a122c in QApplicationPrivate::notify_helper (this=0x8523e0, receiver=0x7fff113057f0, e=0x1359e60) at kernel/qapplication.cpp:4300
#18 0x00007fac627a76fb in QApplication::notify (this=0x7fff113057f0, receiver=0x7fff113057f0, e=0x1359e60) at kernel/qapplication.cpp:4183
#19 0x00007fac63dd0526 in KApplication::notify (this=0x7fff113057f0, receiver=0x7fff113057f0, event=0x1359e60) at ../../kdeui/kernel/kapplication.cpp:302
#20 0x00007fac633e806c in QCoreApplication::notifyInternal (this=0x7fff113057f0, receiver=0x7fff113057f0, event=0x1359e60) at kernel/qcoreapplication.cpp:704
#21 0x00007fac633ea7e7 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x80b620) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x80b620) at kernel/qcoreapplication.cpp:1345
#23 0x00007fac634119d3 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#24 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#25 0x00007fac5ab568c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#26 0x00007fac5ab5a748 in ?? () from /lib/libglib-2.0.so.0
#27 0x00007fac5ab5a8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#28 0x00007fac63411513 in QEventDispatcherGlib::processEvents (this=0x80ad70, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#29 0x00007fac6285146e in QGuiEventDispatcherGlib::processEvents (this=0x7fff11304480, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#30 0x00007fac633e6992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#31 0x00007fac633e6d6c in QEventLoop::exec (this=0x7fff11305730, flags=) at kernel/qeventloop.cpp:201
#32 0x00007fac633eaaab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#33 0x0000000000403e8e in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../kontact/src/main.cpp:224

This bug may be a duplicate of or related to bug 193514.

Possible duplicates by query: bug 247559, bug 247138, bug 246918, bug 246171, bug 241027.

Reported using DrKonqi