Application: kwin_x11 (5.4.2)
 (Compiled from sources)
Qt Version: 5.4.2
Operating System: Linux 4.2.0-17-generic x86_64
Distribution: Ubuntu 15.10

-- Information about the crash:
- What I was doing when the application crashed:
I was attempting to update a password in the Online Accounts module. It freaked out and crashed.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbe5febc880 (LWP 12279))]

Thread 5 (Thread 0x7fbe3f55b700 (LWP 12329)):
#0  0x00007fbe5dfd157a in QMetaObject::activate (sender=sender@entry=0x7fbe300008e0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x0) at kernel/qobject.cpp:3755
#1  0x00007fbe5dfd1f87 in QMetaObject::activate (sender=sender@entry=0x7fbe300008e0, m=m@entry=0x7fbe5e1d43c0 <QAbstractEventDispatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x0) at kernel/qobject.cpp:3582
#2  0x00007fbe5e04a1d3 in QAbstractEventDispatcher::awake (this=this@entry=0x7fbe300008e0) at .moc/moc_qabstracteventdispatcher.cpp:140
#3  0x00007fbe5dff57f5 in QEventDispatcherUNIX::processEvents (this=0x7fbe300008e0, flags=...) at kernel/qeventdispatcher_unix.cpp:578
#4  0x00007fbe5df9e75a in QEventLoop::exec (this=this@entry=0x7fbe3f55ad20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fbe5ddbc3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fbe5892af85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fbe5ddc12be in QThreadPrivate::start (arg=0x2939820) at thread/qthread_unix.cpp:337
#8  0x00007fbe5efe46aa in start_thread (arg=0x7fbe3f55b700) at pthread_create.c:333
#9  0x00007fbe5f9abeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fbe3d5da700 (LWP 12337)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbe5cf51114 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fbe5cf51159 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fbe5efe46aa in start_thread (arg=0x7fbe3d5da700) at pthread_create.c:333
#4  0x00007fbe5f9abeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fbe3ffff700 (LWP 13119)):
#0  0x00007fbe5f9a2743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbe5dff390f in qt_safe_select (nfds=13, fdread=fdread@entry=0x7fbe383fdb98, fdwrite=fdwrite@entry=0x7fbe383fde28, fdexcept=fdexcept@entry=0x7fbe383fe0b8, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#2  0x00007fbe5dff540e in QEventDispatcherUNIX::select (timeout=0x0, exceptfds=0x7fbe383fe0b8, writefds=0x7fbe383fde28, readfds=0x7fbe383fdb98, nfds=<optimized out>, this=0x7fbe384cc9b0) at kernel/qeventdispatcher_unix.cpp:320
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7fbe383fda00, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#4  0x00007fbe5dff593e in QEventDispatcherUNIX::processEvents (this=0x7fbe384cc9b0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5  0x00007fbe5df9e75a in QEventLoop::exec (this=this@entry=0x7fbe3fffed20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fbe5ddbc3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fbe5892af85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fbe5ddc12be in QThreadPrivate::start (arg=0x2f49ac0) at thread/qthread_unix.cpp:337
#9  0x00007fbe5efe46aa in start_thread (arg=0x7fbe3ffff700) at pthread_create.c:333
#10 0x00007fbe5f9abeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fbe3e35a700 (LWP 13120)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbe5ddc255b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x32d0860) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x35f9fd0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fbe58e0ab3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fbe58e0b3c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fbe5ddc12be in QThreadPrivate::start (arg=0x35f9f50) at thread/qthread_unix.cpp:337
#6  0x00007fbe5efe46aa in start_thread (arg=0x7fbe3e35a700) at pthread_create.c:333
#7  0x00007fbe5f9abeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fbe5febc880 (LWP 12279)):
[KCrash Handler]
#6  0x00007fbe5d55a529 in KWin::EffectWindow::geometry (this=this@entry=0x38ba860) at ../../libkwineffects/kwineffects.cpp:722
#7  0x00007fbe5d0c5789 in KWin::PresentWindowsEffect::calculateWindowTransformationsNatural (this=this@entry=0x2d4af10, windowlist=..., screen=screen@entry=0, motionManager=...) at ../../effects/presentwindows/presentwindows.cpp:1177
#8  0x00007fbe5d0c9459 in KWin::PresentWindowsEffect::calculateWindowTransformations (this=0x2d4af10, windowlist=..., screen=screen@entry=0, motionManager=..., external=external@entry=true) at ../../effects/presentwindows/presentwindows.cpp:922
#9  0x00007fbe5d0cedb4 in KWin::PresentWindowsEffectProxy::calculateWindowTransformations (this=0x2d4af20, windows=..., screen=screen@entry=0, manager=...) at ../../effects/presentwindows/presentwindows_proxy.cpp:39
#10 0x00007fbe5d0a6100 in KWin::DesktopGridEffect::slotWindowGeometryShapeChanged (this=0x27d5a60, w=0x3264860, old=...) at ../../effects/desktopgrid/desktopgrid.cpp:455
#11 0x00007fbe5d1127b8 in KWin::DesktopGridEffect::qt_static_metacall (_o=_o@entry=0x27d5a60, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=8, _a=_a@entry=0x7ffcb1d5bcd0) at moc_desktopgrid.cpp:251
#12 0x00007fbe5dfd178a in QMetaObject::activate (sender=0x28228d0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=14, argv=argv@entry=0x7ffcb1d5bcd0) at kernel/qobject.cpp:3717
#13 0x00007fbe5dfd1f87 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fbe5d77aac0 <KWin::EffectsHandler::staticMetaObject>, local_signal_index=local_signal_index@entry=14, argv=argv@entry=0x7ffcb1d5bcd0) at kernel/qobject.cpp:3582
#14 0x00007fbe5d56be57 in KWin::EffectsHandler::windowGeometryShapeChanged (this=<optimized out>, _t1=0x3264860, _t2=...) at moc_kwineffects.cpp:1292
#15 0x00007fbe5dfd1617 in QtPrivate::QSlotObjectBase::call (a=0x7ffcb1d5be10, r=0x28228d0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#16 QMetaObject::activate (sender=sender@entry=0x36606c0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7ffcb1d5be10) at kernel/qobject.cpp:3702
#17 0x00007fbe5dfd1f87 in QMetaObject::activate (sender=sender@entry=0x36606c0, m=m@entry=0x7fbe5f89ee60 <KWin::Toplevel::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7ffcb1d5be10) at kernel/qobject.cpp:3582
#18 0x00007fbe5f603787 in KWin::Toplevel::geometryShapeChanged (this=this@entry=0x36606c0, _t1=_t1@entry=0x36606c0, _t2=...) at moc_toplevel.cpp:679
#19 0x00007fbe5f4e6d5b in KWin::Unmanaged::configureNotifyEvent (this=this@entry=0x36606c0, e=e@entry=0x2d56250) at ../events.cpp:1637
#20 0x00007fbe5f4e6f2b in KWin::Unmanaged::windowEvent (this=0x36606c0, e=e@entry=0x2d56250) at ../events.cpp:1601
#21 0x00007fbe5f4ea853 in KWin::Workspace::workspaceEvent (this=0x27be5f0, e=0x2d56250) at ../events.cpp:357
#22 0x00007fbe5df9d8ef in QAbstractEventDispatcher::filterNativeEvent (this=this@entry=0x26c0eb0, eventType=..., message=message@entry=0x2d56250, result=result@entry=0x7ffcb1d5c048) at kernel/qabstracteventdispatcher.cpp:460
#23 0x00007fbe47aa835e in QXcbConnection::handleXcbEvent (this=this@entry=0x2678fd0, event=event@entry=0x2d56250) at qxcbconnection.cpp:863
#24 0x00007fbe47aa93b3 in QXcbConnection::processXcbEvents (this=0x2678fd0) at qxcbconnection.cpp:1303
#25 0x00007fbe5dfd2651 in QObject::event (this=0x2678fd0, e=<optimized out>) at kernel/qobject.cpp:1245
#26 0x00007fbe5e86eb8c in QApplicationPrivate::notify_helper (this=this@entry=0x266c9d0, receiver=receiver@entry=0x2678fd0, e=e@entry=0x7fbe40002010) at kernel/qapplication.cpp:3720
#27 0x00007fbe5e874230 in QApplication::notify (this=0x7ffcb1d5c730, receiver=0x2678fd0, e=0x7fbe40002010) at kernel/qapplication.cpp:3503
#28 0x00007fbe5dfa0f1b in QCoreApplication::notifyInternal (this=0x7ffcb1d5c730, receiver=0x2678fd0, event=event@entry=0x7fbe40002010) at kernel/qcoreapplication.cpp:935
#29 0x00007fbe5dfa3057 in QCoreApplication::sendEvent (event=0x7fbe40002010, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#30 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x265d130) at kernel/qcoreapplication.cpp:1552
#31 0x00007fbe5dff5802 in QEventDispatcherUNIX::processEvents (this=0x26c0eb0, flags=flags@entry=...) at kernel/qeventdispatcher_unix.cpp:579
#32 0x00007fbe47afd05d in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at eventdispatchers/qunixeventdispatcher.cpp:62
#33 0x00007fbe5df9e75a in QEventLoop::exec (this=this@entry=0x7ffcb1d5c650, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#34 0x00007fbe5dfa62cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#35 0x00007fbe5e2bb00c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#36 0x00007fbe5e86b025 in QApplication::exec () at kernel/qapplication.cpp:2956
#37 0x00007fbe5fc744c4 in kdemain (argc=1, argv=0x7ffcb1d5c898) at ../main_x11.cpp:303
#38 0x00007fbe5f8c5a40 in __libc_start_main (main=0x4007a0 <main(int, char**)>, argc=3, argv=0x7ffcb1d5c898, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcb1d5c888) at libc-start.c:289
#39 0x00000000004007d9 in _start ()

Possible duplicates by query: bug 339970.

Reported using DrKonqi