Application: systemsettings5 (5.3.1)
 (Compiled from sources)
Qt Version: 5.4.1
Operating System: Linux 3.19.0-18-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
Open System Settings
Click on online accounts
Click Create
Click Yahoo!
System settings crashes.

The crash can be reproduced every time.

-- 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 0x7fbbb4656780 (LWP 5906))]

Thread 5 (Thread 0x7fbba1a6b700 (LWP 5907)):
#0  0x00007fbbb0dbc8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbbaf0d6b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fbbaf0d864f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fbba47fe099 in QXcbEventReader::run (this=0x9edd10) at qxcbconnection.cpp:1105
#4  0x00007fbbb143db0e in QThreadPrivate::start (arg=0x9edd10) at thread/qthread_unix.cpp:337
#5  0x00007fbbadff06aa in start_thread (arg=0x7fbba1a6b700) at pthread_create.c:333
#6  0x00007fbbb0dc7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fbb96696700 (LWP 5911)):
#0  0x00007fbbb0dbc8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbbadad1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbbadad2242 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbb9b3f5ae6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fbbadaf8955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbbadff06aa in start_thread (arg=0x7fbb96696700) at pthread_create.c:333
#6  0x00007fbbb0dc7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fbb95e95700 (LWP 5913)):
#0  0x00007fbbb0dbc8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbbadad1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbbadad1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbbadad2009 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbbadaf8955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbbadff06aa in start_thread (arg=0x7fbb95e95700) at pthread_create.c:333
#6  0x00007fbbb0dc7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fbb94e93700 (LWP 6461)):
#0  0x00007fbbb0dbc8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbbadad1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbbadad1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbbb16d4c6c in QEventDispatcherGlib::processEvents (this=0x7fbb64001e00, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fbbb16793e2 in QEventLoop::exec (this=this@entry=0x7fbb94e92e00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fbbb1438b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fbb6d14dcf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007fbbb143db0e in QThreadPrivate::start (arg=0x100c540) at thread/qthread_unix.cpp:337
#8  0x00007fbbadff06aa in start_thread (arg=0x7fbb94e93700) at pthread_create.c:333
#9  0x00007fbbb0dc7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fbbb4656780 (LWP 5906)):
[KCrash Handler]
#6  0x00007fbb69651d50 in SignOn::AuthSession::process(SignOn::SessionData const&, QString const&) () from /usr/lib/x86_64-linux-gnu/libsignon-qt5.so.1
#7  0x00007fbb69aa70d7 in CreateAccount::processSession (this=<optimized out>) at ../../src/jobs/createaccount.cpp:242
#8  0x00007fbbb16856fa in QMetaMethod::invoke (this=this@entry=0x7fffda758f08, object=object@entry=0x1786a40, connectionType=Qt::DirectConnection, connectionType@entry=3665137552, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:2183
#9  0x00007fbbb168a635 in QMetaObject::invokeMethod (obj=obj@entry=0x1786a40, member=member@entry=0x7fbb69aae13d "processSession", type=3665137552, type@entry=Qt::AutoConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1478
#10 0x00007fbb69aa29e2 in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., member=0x7fbb69aae13d "processSession", obj=0x1786a40) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs.h:407
#11 CreateAccount::start (this=0x1786a40) at ../../src/jobs/createaccount.cpp:59
#12 0x00007fbb69a9bfd1 in Create::createAccount (this=<optimized out>) at ../../src/create.cpp:98
#13 0x00007fbbb16ac9c9 in QMetaObject::activate (sender=sender@entry=0xc3f3f0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fffda759460) at kernel/qobject.cpp:3716
#14 0x00007fbbb16ad057 in QMetaObject::activate (sender=sender@entry=0xc3f3f0, m=m@entry=0x7fbbb29a1a60 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fffda759460) at kernel/qobject.cpp:3582
#15 0x00007fbbb2816012 in QAbstractButton::clicked (this=this@entry=0xc3f3f0, _t1=false) at .moc/moc_qabstractbutton.cpp:298
#16 0x00007fbbb2563675 in QAbstractButtonPrivate::emitClicked (this=0x17671c0) at widgets/qabstractbutton.cpp:534
#17 0x00007fbbb2564299 in QAbstractButtonPrivate::click (this=0x17671c0) at widgets/qabstractbutton.cpp:527
#18 0x00007fbbb2564454 in QAbstractButton::mouseReleaseEvent (this=0xc3f3f0, e=0x7fffda759920) at widgets/qabstractbutton.cpp:1132
#19 0x00007fbbb24ab1e8 in QWidget::event (this=0xc3f3f0, event=0x7fffda759920) at kernel/qwidget.cpp:9022
#20 0x00007fbbb2467b2c in QApplicationPrivate::notify_helper (this=0x9c2550, receiver=0xc3f3f0, e=0x7fffda759920) at kernel/qapplication.cpp:3720
#21 0x00007fbbb246d8eb in QApplication::notify (this=0x7fffda759660, receiver=0x7fffda759680, e=0x7fffda759920) at kernel/qapplication.cpp:3280
#22 0x00007fbbb167bc2b in QCoreApplication::notifyInternal (this=0x7fffda75a1f0, receiver=receiver@entry=0xc3f3f0, event=event@entry=0x7fffda759920) at kernel/qcoreapplication.cpp:935
#23 0x00007fbbb246c3da in sendSpontaneousEvent (event=0x7fffda759920, receiver=0xc3f3f0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 QApplicationPrivate::sendMouseEvent (receiver=0xc3f3f0, event=0x7fffda759920, alienWidget=0xc3f3f0, nativeWidget=0xc3ade0, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2751
#25 0x00007fbbb24c3cc0 in QWidgetWindow::handleMouseEvent (this=0xcdd550, event=0x7fffda759d30) at kernel/qwidgetwindow.cpp:543
#26 0x00007fbbb24c5e33 in QWidgetWindow::event (this=0xcdd550, event=0x7fffda759d30) at kernel/qwidgetwindow.cpp:210
#27 0x00007fbbb2467b2c in QApplicationPrivate::notify_helper (this=0x9c2550, receiver=0xcdd550, e=0x7fffda759d30) at kernel/qapplication.cpp:3720
#28 0x00007fbbb246d000 in QApplication::notify (this=0x7fffda75a1f0, receiver=0xcdd550, e=0x7fffda759d30) at kernel/qapplication.cpp:3503
#29 0x00007fbbb167bc2b in QCoreApplication::notifyInternal (this=0x7fffda75a1f0, receiver=0xcdd550, event=0x7fffda759d30) at kernel/qcoreapplication.cpp:935
#30 0x00007fbbb1eaaf82 in sendSpontaneousEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#31 QGuiApplicationPrivate::processMouseEvent (e=0x2abf540) at kernel/qguiapplication.cpp:1774
#32 0x00007fbbb1eacb45 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x2abf540) at kernel/qguiapplication.cpp:1576
#33 0x00007fbbb1e9134f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#34 0x00007fbba4828590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#35 0x00007fbbadad1c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007fbbadad1f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fbbadad1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fbbb16d4c57 in QEventDispatcherGlib::processEvents (this=0xa8b660, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#39 0x00007fbbb16793e2 in QEventLoop::exec (this=this@entry=0x7fffda75a0d0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#40 0x00007fbbb168102c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#41 0x00007fbbb1ea231c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#42 0x00007fbbb24637a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#43 0x000000000040ef6b in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:55

Reported using DrKonqi