Application: kded4 (4.11.97)
KDE Platform Version: 4.11.97
Qt Version: 4.8.5
Operating System: Linux 3.12.0-1.fc21.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
Resumed the laptop from suspend. No connections using ModemManager are configured.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDE Daemon (kded4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f6f5559a8c0 (LWP 1046))]

Thread 2 (Thread 0x7f6f2e29a700 (LWP 1060)):
#0  0x00007f6f521514cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f6f4e84f7c4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f6f28002c00, timeout=-1, context=0x7f6f280009a0) at gmain.c:4005
#2  g_main_context_iterate (context=context@entry=0x7f6f280009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3706
#3  0x00007f6f4e84f8ec in g_main_context_iteration (context=0x7f6f280009a0, may_block=1) at gmain.c:3772
#4  0x00007f6f53f52f76 in QEventDispatcherGlib::processEvents (this=0x7f6f280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#5  0x00007f6f53f22eff in QEventLoop::processEvents (this=this@entry=0x7f6f2e299cc0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f6f53f2324d in QEventLoop::exec (this=this@entry=0x7f6f2e299cc0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f6f53e199af in QThread::exec (this=this@entry=0x178fce0) at thread/qthread.cpp:536
#8  0x00007f6f53f03863 in QInotifyFileSystemWatcherEngine::run (this=0x178fce0) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00007f6f53e1c1af in QThreadPrivate::start (arg=0x178fce0) at thread/qthread_unix.cpp:338
#10 0x00007f6f53b8a0f3 in start_thread (arg=0x7f6f2e29a700) at pthread_create.c:309
#11 0x00007f6f5215b8bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f6f5559a8c0 (LWP 1046)):
[KCrash Handler]
#5  QObject::~QObject (this=0x1deb000, __in_chrg=<optimized out>) at kernel/qobject.cpp:915
#6  0x00007f6f2624cce9 in ModemManager::Modem::~Modem() () from /lib64/libModemManagerQt.so.0
#7  0x00007f6f53f3d338 in QObject::event (this=0x1deb000, e=<optimized out>) at kernel/qobject.cpp:1175
#8  0x00007f6f5306dc2c in QApplicationPrivate::notify_helper (this=this@entry=0x14b2950, receiver=receiver@entry=0x1deb000, e=e@entry=0x17e24f0) at kernel/qapplication.cpp:4562
#9  0x00007f6f530745c5 in QApplication::notify (this=0x7fff90398f00, receiver=0x1deb000, e=0x17e24f0) at kernel/qapplication.cpp:4348
#10 0x00007f6f54f76a5a in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#11 0x00007f6f53f243bd in QCoreApplication::notifyInternal (this=0x7fff90398f00, receiver=receiver@entry=0x1deb000, event=event@entry=0x17e24f0) at kernel/qcoreapplication.cpp:949
#12 0x00007f6f53f274b7 in sendEvent (event=0x17e24f0, receiver=0x1deb000) at kernel/qcoreapplication.h:231
#13 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x14031d0) at kernel/qcoreapplication.cpp:1573
#14 0x00007f6f53f27963 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1466
#15 0x00007f6f53f536d3 in sendPostedEvents () at kernel/qcoreapplication.h:236
#16 postEventSourceDispatch (s=0x14b2d70) at kernel/qeventdispatcher_glib.cpp:280
#17 0x00007f6f4e84f5c4 in g_main_dispatch (context=0x14b2c80) at gmain.c:3066
#18 g_main_context_dispatch (context=context@entry=0x14b2c80) at gmain.c:3640
#19 0x00007f6f4e84f838 in g_main_context_iterate (context=context@entry=0x14b2c80, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3711
#20 0x00007f6f4e84f8ec in g_main_context_iteration (context=0x14b2c80, may_block=1) at gmain.c:3772
#21 0x00007f6f53f52f55 in QEventDispatcherGlib::processEvents (this=0x14054c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#22 0x00007f6f5310fbe6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#23 0x00007f6f53f22eff in QEventLoop::processEvents (this=this@entry=0x7fff90398dc0, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007f6f53f2324d in QEventLoop::exec (this=this@entry=0x7fff90398dc0, flags=...) at kernel/qeventloop.cpp:204
#25 0x00007f6f53f2878b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#26 0x00007f6f35546efb in kdemain () from /usr/lib64/libkdeinit4_kded4.so
#27 0x0000000000408246 in launch(int, char const*, char const*, char const*, int, char const*, bool, char const*, bool, char const*) ()
#28 0x000000000040592c in main ()

Reported using DrKonqi