Application: systemsettings (4.13.0)
KDE Platform Version: 4.14.2
Qt Version: 4.8.6
Operating System: Linux 3.13.0-44-generic x86_64
Distribution: Netrunner 14 (Frontier)

-- Information about the crash:
- Custom settings of the application:
Google caalendar used to be linked with this user. But ~/.kde was overwritten during system's upgrade.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7feffde227c0 (LWP 5878))]

Thread 8 (Thread 0x7fefdffff700 (LWP 5879)):
#0  __GI___pthread_mutex_lock (mutex=0x7fefd8000a60) at ../nptl/pthread_mutex_lock.c:66
#1  0x00007feff3dbd981 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007feff3d7b0b0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007feff3d7bea5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007feff3d7c0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007feffb5a77be in QEventDispatcherGlib::processEvents (this=0x7fefd80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007feffb5790af in QEventLoop::processEvents (this=this@entry=0x7fefdfffede0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007feffb5793a5 in QEventLoop::exec (this=this@entry=0x7fefdfffede0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007feffb475c5f in QThread::exec (this=this@entry=0x22c1fb0) at thread/qthread.cpp:537
#9  0x00007feffb55a823 in QInotifyFileSystemWatcherEngine::run (this=0x22c1fb0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007feffb47832f in QThreadPrivate::start (arg=0x22c1fb0) at thread/qthread_unix.cpp:349
#11 0x00007feff425b182 in start_thread (arg=0x7fefdffff700) at pthread_create.c:312
#12 0x00007feffae2e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7fefd7fff700 (LWP 5882)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007feffa24181d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007feffa241859 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007feff425b182 in start_thread (arg=0x7fefd7fff700) at pthread_create.c:312
#4  0x00007feffae2e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7fef977fc700 (LWP 5883)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007feff9f8220d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007feffa270fd6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007feff425b182 in start_thread (arg=0x7fef977fc700) at pthread_create.c:312
#4  0x00007feffae2e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7fef96bfb700 (LWP 5884)):
#0  0x00007feff3dbd8aa in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007feff3dbdd29 in g_private_get () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007feff3da13a0 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007feff3d7b09c in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007feff3d7bea5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007feff3d7c0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007feffb5a77be in QEventDispatcherGlib::processEvents (this=0x7fef880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#7  0x00007feffb5790af in QEventLoop::processEvents (this=this@entry=0x7fef96bfae20, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007feffb5793a5 in QEventLoop::exec (this=this@entry=0x7fef96bfae20, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007feffb475c5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#10 0x00007feffb47832f in QThreadPrivate::start (arg=0x23f6f10) at thread/qthread_unix.cpp:349
#11 0x00007feff425b182 in start_thread (arg=0x7fef96bfb700) at pthread_create.c:312
#12 0x00007feffae2e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7fef95744700 (LWP 5885)):
#0  0x00007feffae20cbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007feff3d7bfe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007feff3d7c0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007feffb5a77be in QEventDispatcherGlib::processEvents (this=0x7fef8c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007feffb5790af in QEventLoop::processEvents (this=this@entry=0x7fef95743e20, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007feffb5793a5 in QEventLoop::exec (this=this@entry=0x7fef95743e20, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007feffb475c5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#7  0x00007feffb47832f in QThreadPrivate::start (arg=0x1f58ee0) at thread/qthread_unix.cpp:349
#8  0x00007feff425b182 in start_thread (arg=0x7fef95744700) at pthread_create.c:312
#9  0x00007feffae2e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7fef94f43700 (LWP 5886)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007feffb4787f4 in wait (time=30000, this=0x7fef8c009b10) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=this@entry=0x7fef8c0098c0, mutex=mutex@entry=0x7fef8c0095f8, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007feffb46c0fa in QThreadPoolThread::run (this=0x7fef8c0098b0) at concurrent/qthreadpool.cpp:142
#4  0x00007feffb47832f in QThreadPrivate::start (arg=0x7fef8c0098b0) at thread/qthread_unix.cpp:349
#5  0x00007feff425b182 in start_thread (arg=0x7fef94f43700) at pthread_create.c:312
#6  0x00007feffae2e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fef8743d700 (LWP 5887)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007feffb4787f4 in wait (time=30000, this=0x7fef8c26a000) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=this@entry=0x7fef8c269c20, mutex=mutex@entry=0x7fef8c0095f8, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007feffb46c0fa in QThreadPoolThread::run (this=0x7fef8c269c10) at concurrent/qthreadpool.cpp:142
#4  0x00007feffb47832f in QThreadPrivate::start (arg=0x7fef8c269c10) at thread/qthread_unix.cpp:349
#5  0x00007feff425b182 in start_thread (arg=0x7fef8743d700) at pthread_create.c:312
#6  0x00007feffae2e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7feffde227c0 (LWP 5878)):
[KCrash Handler]
#6  0x00007fefdf5af9ed in OAuth::authenticated(KGAPI2::Job*) () from /usr/lib/kde4/webaccounts.so
#7  0x00007fefdf59c98d in OAuth::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/kde4/webaccounts.so
#8  0x00007feffb58e87a in QMetaObject::activate (sender=0x23e6ef0, m=m@entry=0x7fefdee59660 <KGAPI2::Job::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff71724dd0) at kernel/qobject.cpp:3539
#9  0x00007fefdeb621af in KGAPI2::Job::finished (this=<optimized out>, _t1=0x23e6ef0) at /build/buildd/libkgapi-2.1.1/obj-x86_64-linux-gnu/libkgapi2/job.moc:150
#10 0x00007feffb592c1e in QObject::event (this=0x23e6ef0, e=<optimized out>) at kernel/qobject.cpp:1194
#11 0x00007feffc1e7e2c in QApplicationPrivate::notify_helper (this=this@entry=0x1e9b9c0, receiver=receiver@entry=0x23e6ef0, e=e@entry=0x2652790) at kernel/qapplication.cpp:4567
#12 0x00007feffc1ee4a0 in QApplication::notify (this=this@entry=0x7fff717254f0, receiver=receiver@entry=0x23e6ef0, e=e@entry=0x2652790) at kernel/qapplication.cpp:4353
#13 0x00007feffcef2cca in KApplication::notify (this=0x7fff717254f0, receiver=0x23e6ef0, event=0x2652790) at ../../kdeui/kernel/kapplication.cpp:311
#14 0x00007feffb57a4dd in QCoreApplication::notifyInternal (this=0x7fff717254f0, receiver=receiver@entry=0x23e6ef0, event=event@entry=0x2652790) at kernel/qcoreapplication.cpp:953
#15 0x00007feffb57db3d in sendEvent (event=0x2652790, receiver=0x23e6ef0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#16 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1e5b230) at kernel/qcoreapplication.cpp:1577
#17 0x00007feffb57dfe3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#18 0x00007feffb5a7f83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#19 postEventSourceDispatch (s=0x1e9fa60) at kernel/qeventdispatcher_glib.cpp:287
#20 0x00007feff3d7be04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007feff3d7c048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007feff3d7c0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007feffb5a77a1 in QEventDispatcherGlib::processEvents (this=0x1e95ab0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#24 0x00007feffc289bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007feffb5790af in QEventLoop::processEvents (this=this@entry=0x7fff717253f0, flags=...) at kernel/qeventloop.cpp:149
#26 0x00007feffb5793a5 in QEventLoop::exec (this=this@entry=0x7fff717253f0, flags=...) at kernel/qeventloop.cpp:204
#27 0x00007feffb57eb79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#28 0x00007feffc1e637c in QApplication::exec () at kernel/qapplication.cpp:3828
#29 0x000000000040aadb in main (argc=5, argv=0x7fff71725638) at ../../../systemsettings/app/main.cpp:49

Reported using DrKonqi