Bug 338201

Application: systemsettings (4.11.10)
KDE Platform Version: 4.13.97
Qt Version: 4.8.6
Operating System: Linux 3.13.0-32-generic x86_64
Distribution: Ubuntu 14.04.1 LTS

-- Information about the crash:
I clickted a lot and fast in the systemsettings program and after some time (e.g. 10-15s) it crashed.

-- Backtrace:
Application: Systemeinstellungen (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f892875c800 (LWP 21998))]

Thread 5 (Thread 0x7f8908bcb700 (LWP 22000)):
#0  0x00007f892575603d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f891e6b1fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f891e6b20ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8925edc7be in QEventDispatcherGlib::processEvents (this=0x7f89040008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f8925eae0af in QEventLoop::processEvents (this=this@entry=0x7f8908bcace0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8925eae3a5 in QEventLoop::exec (this=this@entry=0x7f8908bcace0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f8925daac5f in QThread::exec (this=this@entry=0x147a410) at thread/qthread.cpp:537
#7  0x00007f8925e8f823 in QInotifyFileSystemWatcherEngine::run (this=0x147a410) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f8925dad32f in QThreadPrivate::start (arg=0x147a410) at thread/qthread_unix.cpp:349
#9  0x00007f891b1498f4 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#10 0x00007f891eb91182 in start_thread (arg=0x7f8908bcb700) at pthread_create.c:312
#11 0x00007f892576338d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f8903bd4700 (LWP 22005)):
#0  0x00007f891e6af3ef in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f891e6b19bb in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f891e6b1f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f891e6b20ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8925edc7be in QEventDispatcherGlib::processEvents (this=0x7f88fc0008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#5  0x00007f8925eae0af in QEventLoop::processEvents (this=this@entry=0x7f8903bd3ce0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f8925eae3a5 in QEventLoop::exec (this=this@entry=0x7f8903bd3ce0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f8925daac5f in QThread::exec (this=this@entry=0x1b868c0) at thread/qthread.cpp:537
#8  0x00007f8925e8f823 in QInotifyFileSystemWatcherEngine::run (this=0x1b868c0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007f8925dad32f in QThreadPrivate::start (arg=0x1b868c0) at thread/qthread_unix.cpp:349
#10 0x00007f891b1498f4 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#11 0x00007f891eb91182 in start_thread (arg=0x7f8903bd4700) at pthread_create.c:312
#12 0x00007f892576338d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f8900841700 (LWP 22014)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8922fb3ffb in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f8922fb4039 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f891b1498f4 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#4  0x00007f891eb91182 in start_thread (arg=0x7f8900841700) at pthread_create.c:312
#5  0x00007f892576338d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f88fa8fb700 (LWP 22019)):
#0  0x00007f891e6f362d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f891e6f39b9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f891e6b1a20 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f891e6b1f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f891e6b20ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8925edc7be in QEventDispatcherGlib::processEvents (this=0x7f88f40008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f8925eae0af in QEventLoop::processEvents (this=this@entry=0x7f88fa8face0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f8925eae3a5 in QEventLoop::exec (this=this@entry=0x7f88fa8face0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f8925daac5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#9  0x00007f88f9ecf027 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#10 0x00007f8925dad32f in QThreadPrivate::start (arg=0x143dd80) at thread/qthread_unix.cpp:349
#11 0x00007f891b1498f4 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#12 0x00007f891eb91182 in start_thread (arg=0x7f88fa8fb700) at pthread_create.c:312
#13 0x00007f892576338d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f892875c800 (LWP 21998)):
[KCrash Handler]
#6  data (this=0x71002f00620071) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:135
#7  qGetPtrHelper<QScopedPointer<QObjectData> > (p=...) at ../../include/QtCore/../../src/corelib/global/qglobal.h:2467
#8  d_func (this=0x71002f00620069) at itemviews/qstandarditemmodel.h:425
#9  QStandardItemModel::clear (this=0x71002f00620069) at itemviews/qstandarditemmodel.cpp:2088
#10 0x00007f8901a1ea04 in KKameraConfig::populateDeviceListView (this=this@entry=0x48d2a30) at ../../kcontrol/kamera.cpp:173
#11 0x00007f8901a20579 in KKameraConfig::load (this=0x48d2a30) at ../../kcontrol/kamera.cpp:259
#12 0x00007f89278b4dc9 in KCModule::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at ./kcmodule.moc:65
#13 0x00007f8925ec7c1e in QObject::event (this=this@entry=0x48d2a30, e=e@entry=0x11f1a80) at kernel/qobject.cpp:1194
#14 0x00007f8926b6c55b in QWidget::event (this=0x48d2a30, event=0x11f1a80) at kernel/qwidget.cpp:8846
#15 0x00007f8926b1ce2c in QApplicationPrivate::notify_helper (this=this@entry=0xd81760, receiver=receiver@entry=0x48d2a30, e=e@entry=0x11f1a80) at kernel/qapplication.cpp:4567
#16 0x00007f8926b234a0 in QApplication::notify (this=this@entry=0x7fff7a435fd0, receiver=receiver@entry=0x48d2a30, e=e@entry=0x11f1a80) at kernel/qapplication.cpp:4353
#17 0x00007f8927827d1a in KApplication::notify (this=0x7fff7a435fd0, receiver=0x48d2a30, event=0x11f1a80) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x00007f8925eaf4dd in QCoreApplication::notifyInternal (this=0x7fff7a435fd0, receiver=receiver@entry=0x48d2a30, event=event@entry=0x11f1a80) at kernel/qcoreapplication.cpp:953
#19 0x00007f8925eb2b3d in sendEvent (event=0x11f1a80, receiver=0x48d2a30) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#20 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xd00230) at kernel/qcoreapplication.cpp:1577
#21 0x00007f8925eb2fe3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#22 0x00007f8925edcf83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#23 postEventSourceDispatch (s=0xd8a380) at kernel/qeventdispatcher_glib.cpp:287
#24 0x00007f891e6b1e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f891e6b2048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f891e6b20ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f8925edc7a1 in QEventDispatcherGlib::processEvents (this=0xd01ae0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#28 0x00007f8926bbebb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0x00007f8925eae0af in QEventLoop::processEvents (this=this@entry=0x7fff7a435ed0, flags=...) at kernel/qeventloop.cpp:149
#30 0x00007f8925eae3a5 in QEventLoop::exec (this=this@entry=0x7fff7a435ed0, flags=...) at kernel/qeventloop.cpp:204
#31 0x00007f8925eb3b79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#32 0x00007f8926b1b37c in QApplication::exec () at kernel/qapplication.cpp:3828
#33 0x000000000040aadb in main (argc=5, argv=0x7fff7a436118) at ../../../systemsettings/app/main.cpp:49

Possible duplicates by query: bug 318310, bug 305061.

Reported using DrKonqi