Application: kded4 (4.14.2)
KDE Platform Version: 4.14.2
Qt Version: 4.8.6
Operating System: Linux 3.13.0-45-generic x86_64
Distribution: Ubuntu 14.04.1 LTS

-- Information about the crash:
no matter what i do it never works properly, it just crashes

The crash can be reproduced every time.

-- Backtrace:
Application: KDE Daemon (kded4), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe49ef2f7c0 (LWP 12891))]

Thread 7 (Thread 0x7fe480633700 (LWP 12893)):
#0  0x00007fff271fea1f in ?? ()
#1  0x0000005b7f9cd441 in ?? ()
#2  0x00007fe49ef318a0 in ?? ()
#3  0x0000000000000001 in ?? ()
#4  0x00007fe478003130 in ?? ()
#5  0x00007fe480632c68 in ?? ()
#6  0x00007fe480632c00 in ?? ()
#7  0x000000007fffffff in ?? ()
#8  0x00007fe49dbd96f0 in ?? () at kernel/qeventdispatcher_glib.cpp:223 from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007fe480632c70 in ?? ()
#10 0x00007fe49c7bb4bd in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#11 0x00007fe49dafead7 in do_gettime (frac=0x7fe480632bb0, sec=0x7fe480632ba8) at tools/qelapsedtimer_unix.cpp:127
#12 qt_gettime () at tools/qelapsedtimer_unix.cpp:144
#13 0x00007fe49dbdaf05 in updateCurrentTime (this=0xffffffffffdff000) at kernel/qeventdispatcher_unix.cpp:354
#14 QTimerInfoList::timerWait (this=0xffffffffffdff000, tm=...) at kernel/qeventdispatcher_unix.cpp:460
#15 0x00007fe49dbd967c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7fe480632c64) at kernel/qeventdispatcher_glib.cpp:143
#16 0x00007fe49dbd9725 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:176
#17 0x00007fe49989d68d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007fe49989df03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fe49989e0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fe49dbd97be in QEventDispatcherGlib::processEvents (this=0x7fe4780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#21 0x00007fe49dbab0af in QEventLoop::processEvents (this=this@entry=0x7fe480632e20, flags=...) at kernel/qeventloop.cpp:149
#22 0x00007fe49dbab3a5 in QEventLoop::exec (this=this@entry=0x7fe480632e20, flags=...) at kernel/qeventloop.cpp:204
#23 0x00007fe49daa7c5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#24 0x00007fe49daaa32f in QThreadPrivate::start (arg=0x119d680) at thread/qthread_unix.cpp:349
#25 0x00007fe499f80182 in start_thread (arg=0x7fe480633700) at pthread_create.c:312
#26 0x00007fe49c7ad00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7fe46f350700 (LWP 12901)):
#0  0x00007fe49c79fcbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fe49989dfe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe49989e0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe49dbd97be in QEventDispatcherGlib::processEvents (this=0x7fe4580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007fe49dbab0af in QEventLoop::processEvents (this=this@entry=0x7fe46f34fde0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fe49dbab3a5 in QEventLoop::exec (this=this@entry=0x7fe46f34fde0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fe49daa7c5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#7  0x00007fe4832a0027 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#8  0x00007fe49daaa32f in QThreadPrivate::start (arg=0x108bba0) at thread/qthread_unix.cpp:349
#9  0x00007fe499f80182 in start_thread (arg=0x7fe46f350700) at pthread_create.c:312
#10 0x00007fe49c7ad00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7fe46eb4f700 (LWP 12902)):
#0  0x00007fff271fea1f in ?? ()
#1  0x00007fe46eb4ebb0 in ?? ()
#2  0x00007fe49ef318a0 in ?? ()
#3  0x0000000000000001 in ?? ()
#4  0x00007fe464002d30 in ?? ()
#5  0x00007fe46eb4ec68 in ?? ()
#6  0x00007fe46eb4ec00 in ?? ()
#7  0x000000007fffffff in ?? ()
#8  0x00007fe49dbd96f0 in ?? () at kernel/qeventdispatcher_glib.cpp:223 from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007fe46eb4ec70 in ?? ()
#10 0x00007fe49c7bb4bd in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#11 0x00007fe49dafead7 in do_gettime (frac=0x7fe46eb4ebb0, sec=0x7fe46eb4eba8) at tools/qelapsedtimer_unix.cpp:127
#12 qt_gettime () at tools/qelapsedtimer_unix.cpp:144
#13 0x00007fe49dbdaf05 in updateCurrentTime (this=0xffffffffffdff000) at kernel/qeventdispatcher_unix.cpp:354
#14 QTimerInfoList::timerWait (this=0xffffffffffdff000, tm=...) at kernel/qeventdispatcher_unix.cpp:460
#15 0x00007fe49dbd967c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7fe46eb4ec64) at kernel/qeventdispatcher_glib.cpp:143
#16 0x00007fe49dbd9725 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:176
#17 0x00007fe49989d68d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007fe49989df03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fe49989e0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fe49dbd97be in QEventDispatcherGlib::processEvents (this=0x7fe4640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#21 0x00007fe49dbab0af in QEventLoop::processEvents (this=this@entry=0x7fe46eb4ee20, flags=...) at kernel/qeventloop.cpp:149
#22 0x00007fe49dbab3a5 in QEventLoop::exec (this=this@entry=0x7fe46eb4ee20, flags=...) at kernel/qeventloop.cpp:204
#23 0x00007fe49daa7c5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#24 0x00007fe49daaa32f in QThreadPrivate::start (arg=0xf83580) at thread/qthread_unix.cpp:349
#25 0x00007fe499f80182 in start_thread (arg=0x7fe46eb4f700) at pthread_create.c:312
#26 0x00007fe49c7ad00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7fe46e34e700 (LWP 12903)):
#0  0x00007fe49ed64068 in _dl_update_slotinfo (req_modid=1) at dl-tls.c:571
#1  0x00007fe49ed52226 in update_get_addr (ti=0x7fe49df11a50) at dl-tls.c:753
#2  0x00007fe49daa9044 in get_thread_data () at thread/qthread_unix.cpp:188
#3  QThreadData::current () at thread/qthread_unix.cpp:219
#4  0x00007fe49dbd9af5 in postEventSourcePrepare (s=0x7fe460001350, timeout=0x7fe46e34dc24) at kernel/qeventdispatcher_glib.cpp:263
#5  0x00007fe49989d68d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fe49989df03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fe49989e0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fe49dbd97be in QEventDispatcherGlib::processEvents (this=0x7fe4600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#9  0x00007fe49dbab0af in QEventLoop::processEvents (this=this@entry=0x7fe46e34dde0, flags=...) at kernel/qeventloop.cpp:149
#10 0x00007fe49dbab3a5 in QEventLoop::exec (this=this@entry=0x7fe46e34dde0, flags=...) at kernel/qeventloop.cpp:204
#11 0x00007fe49daa7c5f in QThread::exec (this=this@entry=0xfe2030) at thread/qthread.cpp:537
#12 0x00007fe49db8c823 in QInotifyFileSystemWatcherEngine::run (this=0xfe2030) at io/qfilesystemwatcher_inotify.cpp:265
#13 0x00007fe49daaa32f in QThreadPrivate::start (arg=0xfe2030) at thread/qthread_unix.cpp:349
#14 0x00007fe499f80182 in start_thread (arg=0x7fe46e34e700) at pthread_create.c:312
#15 0x00007fe49c7ad00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7fe45ffff700 (LWP 12911)):
#0  0x00007fe49989e048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fe49989e30a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe46cc56336 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#3  0x00007fe4998c2f05 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe499f80182 in start_thread (arg=0x7fe45ffff700) at pthread_create.c:312
#5  0x00007fe49c7ad00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fe47d77b700 (LWP 14664)):
#0  0x00007fe499f82569 in __GI___pthread_mutex_lock (mutex=0x7fe4700036c0) at ../nptl/pthread_mutex_lock.c:125
#1  0x00007fe4998df981 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe49989df99 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe49989e0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe49dbd97be in QEventDispatcherGlib::processEvents (this=0x7fe470003520, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#5  0x00007fe49dbab0af in QEventLoop::processEvents (this=this@entry=0x7fe47d77ade0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fe49dbab3a5 in QEventLoop::exec (this=this@entry=0x7fe47d77ade0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fe49daa7c5f in QThread::exec (this=this@entry=0x3252e40) at thread/qthread.cpp:537
#8  0x00007fe49db8c823 in QInotifyFileSystemWatcherEngine::run (this=0x3252e40) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007fe49daaa32f in QThreadPrivate::start (arg=0x3252e40) at thread/qthread_unix.cpp:349
#10 0x00007fe499f80182 in start_thread (arg=0x7fe47d77b700) at pthread_create.c:312
#11 0x00007fe49c7ad00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fe49ef2f7c0 (LWP 12891)):
[KCrash Handler]
#6  QCoreApplication::postEvent (receiver=0x2fe0c30, event=0x2fabaa0, priority=0) at kernel/qcoreapplication.cpp:1350
#7  0x00007fe47c565a68 in ModemMonitor::onSendPinArrived(QDBusPendingCallWatcher*) () from /usr/lib/kde4/kded_networkmanagement.so
#8  0x00007fe47c54d688 in ?? () from /usr/lib/kde4/kded_networkmanagement.so
#9  0x00007fe49dbc087a in QMetaObject::activate (sender=0x2fe0c30, m=m@entry=0x7fe49b183640 <QDBusPendingCallWatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff2717e6c0) at kernel/qobject.cpp:3539
#10 0x00007fe49af650ef in QDBusPendingCallWatcher::finished (this=<optimized out>, _t1=0x2fe0c30) at .moc/release-shared/moc_qdbuspendingcall.cpp:105
#11 0x00007fe49dbc4c1e in QObject::event (this=0x2fe0c30, e=<optimized out>) at kernel/qobject.cpp:1194
#12 0x00007fe49cf45e2c in QApplicationPrivate::notify_helper (this=this@entry=0xf281b0, receiver=receiver@entry=0x2fe0c30, e=e@entry=0x2fb8f10) at kernel/qapplication.cpp:4567
#13 0x00007fe49cf4c4a0 in QApplication::notify (this=this@entry=0x7fff2717ee10, receiver=receiver@entry=0x2fe0c30, e=e@entry=0x2fb8f10) at kernel/qapplication.cpp:4353
#14 0x00007fe49e92bcca in KApplication::notify (this=0x7fff2717ee10, receiver=0x2fe0c30, event=0x2fb8f10) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007fe49dbac4dd in QCoreApplication::notifyInternal (this=0x7fff2717ee10, receiver=receiver@entry=0x2fe0c30, event=event@entry=0x2fb8f10) at kernel/qcoreapplication.cpp:953
#16 0x00007fe49dbafb3d in sendEvent (event=0x2fb8f10, receiver=0x2fe0c30) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xe8e150) at kernel/qcoreapplication.cpp:1577
#18 0x00007fe49dbaffe3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#19 0x00007fe49dbd9f83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#20 postEventSourceDispatch (s=0xf26970) at kernel/qeventdispatcher_glib.cpp:287
#21 0x00007fe49989de04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fe49989e048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fe49989e0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fe49dbd97a1 in QEventDispatcherGlib::processEvents (this=0xe906d0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#25 0x00007fe49cfe7bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007fe49dbab0af in QEventLoop::processEvents (this=this@entry=0x7fff2717ece0, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007fe49dbab3a5 in QEventLoop::exec (this=this@entry=0x7fff2717ece0, flags=...) at kernel/qeventloop.cpp:204
#28 0x00007fe49dbb0b79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#29 0x00007fe49cf4437c in QApplication::exec () at kernel/qapplication.cpp:3828
#30 0x00007fe488dfed1b in kdemain (argc=1, argv=0xf0c830) at ../../kded/kded.cpp:940
#31 0x00000000004083ee in launch (argc=argc@entry=1, _name=_name@entry=0x40afc7 "kded4", args=args@entry=0x0, cwd=cwd@entry=0x0, envc=envc@entry=0, envs=<optimized out>, envs@entry=0x0, reset_env=reset_env@entry=false, tty=tty@entry=0x0, avoid_loops=avoid_loops@entry=false, startup_id_str=startup_id_str@entry=0x40ae56 "0") at ../../kinit/kinit.cpp:738
#32 0x00000000004059a3 in main (argc=4, argv=<optimized out>, envp=0x7fff2717f570) at ../../kinit/kinit.cpp:1853

Reported using DrKonqi