Application: systemsettings5 (5.3.0)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-15-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
i tried changing the file associations with a root instance of systemsettings that crashed plasma and lots of other things

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f99034fc780 (LWP 23026))]

Thread 3 (Thread 0x7f98f2ae1700 (LWP 23027)):
#0  0x00007f98ffc868dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f98fdfa0b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f98fdfa264f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f98f506f099 in QXcbEventReader::run (this=0x19e82d0) at qxcbconnection.cpp:1105
#4  0x00007f9900307b0e in QThreadPrivate::start (arg=0x19e82d0) at thread/qthread_unix.cpp:337
#5  0x00007f98fceba6aa in start_thread (arg=0x7f98f2ae1700) at pthread_create.c:333
#6  0x00007f98ffc91eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f98e2dbd700 (LWP 23028)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f98e6512573 in radeon_drm_cs_emit_ioctl (param=0x1b2b2c0) at ../../../../../../../include/c11/threads_posix.h:154
#2  0x00007f98e6511bc8 in impl_thrd_routine (p=<optimized out>) at ../../../../../../../include/c11/threads_posix.h:87
#3  0x00007f98fceba6aa in start_thread (arg=0x7f98e2dbd700) at pthread_create.c:333
#4  0x00007f98ffc91eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f99034fc780 (LWP 23026)):
[KCrash Handler]
#6  0x00007f98f19b12f4 in KNotification::id (this=this@entry=0x233f5b0) at ../../src/knotification.cpp:389
#7  0x00007f98f19b2569 in KNotificationManager::notifyPluginFinished (this=0x7f98f1be6e90 <(anonymous namespace)::Q_QGS_s_self::innerFunction()::holder>, notification=0x233f5b0) at ../../src/knotificationmanager.cpp:115
#8  0x00007f98f19b39ac in KNotificationManager::qt_static_metacall (_o=0x233f5b0, _c=36959664, _id=2, _a=0x7ffef6994b90) at ./moc_knotificationmanager_p.cpp:83
#9  0x00007f99005769c9 in QMetaObject::activate (sender=sender@entry=0x1de4370, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffef6994b90) at kernel/qobject.cpp:3716
#10 0x00007f9900577057 in QMetaObject::activate (sender=sender@entry=0x1de4370, m=m@entry=0x7f98f1be4be0 <KNotificationPlugin::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffef6994b90) at kernel/qobject.cpp:3582
#11 0x00007f98f19d4b7f in KNotificationPlugin::finished (this=this@entry=0x1de4370, _t1=0x233f5b0) at moc_knotificationplugin.cpp:139
#12 0x00007f98f19c4725 in KNotificationPlugin::finish (this=this@entry=0x1de4370, notification=<optimized out>) at ../../src/knotificationplugin.cpp:52
#13 0x00007f98f19cefc0 in NotifyByAudio::onAudioFinished (this=0x1de4370) at ../../src/notifybyaudio.cpp:138
#14 0x00007f98f19d5475 in NotifyByAudio::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at moc_notifybyaudio.cpp:82
#15 0x00007f99005769c9 in QMetaObject::activate (sender=0x2dc56a0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3716
#16 0x00007f98f12563ad in ?? () from /usr/lib/x86_64-linux-gnu/libphonon4qt5.so.4
#17 0x00007f990057773a in QObject::event (this=0x2dc56a0, e=<optimized out>) at kernel/qobject.cpp:1245
#18 0x00007f9901331b2c in QApplicationPrivate::notify_helper (this=0x19cbb10, receiver=0x2dc56a0, e=0x2e09150) at kernel/qapplication.cpp:3720
#19 0x00007f9901337000 in QApplication::notify (this=0x7ffef69953b0, receiver=0x2dc56a0, e=0x2e09150) at kernel/qapplication.cpp:3503
#20 0x00007f9900545c2b in QCoreApplication::notifyInternal (this=0x7ffef69953b0, receiver=0x2dc56a0, event=event@entry=0x2e09150) at kernel/qcoreapplication.cpp:935
#21 0x00007f9900547c9b in sendEvent (event=0x2e09150, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x19cad60) at kernel/qcoreapplication.cpp:1552
#23 0x00007f9900548298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#24 0x00007f990059e843 in postEventSourceDispatch (s=0x1a22ec0) at kernel/qeventdispatcher_glib.cpp:271
#25 0x00007f98fc99bc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f98fc99bf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f98fc99bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f990059ec57 in QEventDispatcherGlib::processEvents (this=0x1a164c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#29 0x00007f99005433e2 in QEventLoop::exec (this=this@entry=0x7ffef6995290, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#30 0x00007f990054b02c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#31 0x00007f9900d6c31c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#32 0x00007f990132d7a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#33 0x000000000040ef5b in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:55

Reported using DrKonqi