Application: kwin_x11 (5.8.9)

Qt Version: 5.6.1
Frameworks Version: 5.36.0
Operating System: Linux 4.10.0-40-lowlatency x86_64
Distribution: Ubuntu 16.04.5 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Reply to email sent. Firefox on in background. Mail image (on top) closed and crash reported.

-- 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 0x7fbdfe6eb940 (LWP 5047))]

Thread 5 (Thread 0x7fbd5f6a5700 (LWP 6080)):
#0  0x00007ffea8dafb0b in clock_gettime ()
#1  0x00007fbe1626c876 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7fbd5f6a4a10) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007fbe13f496c6 in qt_clock_gettime (ts=0x7fbd5f6a4a10, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5  0x00007fbe140c4f09 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fbd580a3f88) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007fbe140c430b in QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7fbd580a3750, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:171
#7  0x00007fbe140c4b22 in QEventDispatcherUNIX::processEvents (this=0x7fbd580636f0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#8  0x00007fbe1406fffa in QEventLoop::exec (this=this@entry=0x7fbd5f6a4c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007fbe13e989e4 in QThread::exec (this=this@entry=0x1ccffc0) at thread/qthread.cpp:500
#10 0x00007fbe0f0686b5 in QQmlThreadPrivate::run (this=0x1ccffc0) at qml/ftw/qqmlthread.cpp:141
#11 0x00007fbe13e9d808 in QThreadPrivate::start (arg=0x1ccffc0) at thread/qthread_unix.cpp:341
#12 0x00007fbe0ff0e6ba in start_thread (arg=0x7fbd5f6a5700) at pthread_create.c:333
#13 0x00007fbe1625e41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fbde6ffe700 (LWP 5185)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbe13236574 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fbe132365b9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fbe0ff0e6ba in start_thread (arg=0x7fbde6ffe700) at pthread_create.c:333
#4  0x00007fbe1625e41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fbdf4ff5700 (LWP 5183)):
#0  0x00007ffea8dafb0b in clock_gettime ()
#1  0x00007fbe1626c876 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7fbdf4ff4b10) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007fbe13f496c6 in qt_clock_gettime (ts=0x7fbdf4ff4b10, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5  0x00007fbe140c4f09 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fbdec001118) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007fbe140c5475 in QTimerInfoList::timerWait (this=this@entry=0x7fbdec001118, tm=...) at kernel/qtimerinfo_unix.cpp:381
#7  0x00007fbe140c4ad2 in QEventDispatcherUNIX::processEvents (this=0x7fbdec0008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:594
#8  0x00007fbe1406fffa in QEventLoop::exec (this=this@entry=0x7fbdf4ff4c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007fbe13e989e4 in QThread::exec (this=this@entry=0x155a7f0) at thread/qthread.cpp:500
#10 0x00007fbe0f0686b5 in QQmlThreadPrivate::run (this=0x155a7f0) at qml/ftw/qqmlthread.cpp:141
#11 0x00007fbe13e9d808 in QThreadPrivate::start (arg=0x155a7f0) at thread/qthread_unix.cpp:341
#12 0x00007fbe0ff0e6ba in start_thread (arg=0x7fbdf4ff5700) at pthread_create.c:333
#13 0x00007fbe1625e41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fbdf788c700 (LWP 5116)):
#0  0x00007ffea8dafb0b in clock_gettime ()
#1  0x00007fbe1626c876 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7fbdf788bb00) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007fbe13f496c6 in qt_clock_gettime (ts=0x7fbdf788bb00, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5  0x00007fbe140c4f09 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fbdf0001118) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007fbe140c5475 in QTimerInfoList::timerWait (this=this@entry=0x7fbdf0001118, tm=...) at kernel/qtimerinfo_unix.cpp:381
#7  0x00007fbe140c4ad2 in QEventDispatcherUNIX::processEvents (this=0x7fbdf00008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:594
#8  0x00007fbe1406fffa in QEventLoop::exec (this=this@entry=0x7fbdf788bc50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007fbe13e989e4 in QThread::exec (this=this@entry=0x7fbe16887d40 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:500
#10 0x00007fbe16814515 in QDBusConnectionManager::run (this=0x7fbe16887d40 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:189
#11 0x00007fbe13e9d808 in QThreadPrivate::start (arg=0x7fbe16887d40 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:341
#12 0x00007fbe0ff0e6ba in start_thread (arg=0x7fbdf788c700) at pthread_create.c:333
#13 0x00007fbe1625e41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fbdfe6eb940 (LWP 5047)):
[KCrash Handler]
#6  QV4::Value::as<QV4::QQmlValueTypeWrapper const> (this=0x7fbd54bb4320) at ../../include/QtQml/5.6.1/QtQml/private/../../../../../src/qml/jsruntime/qv4value_p.h:372
#7  QQmlBinding::write (this=this@entry=0x22d4d50, core=..., result=..., isUndefined=<optimized out>, flags=...) at qml/qqmlbinding.cpp:257
#8  0x00007fbe0f05553a in QQmlBinding::update (this=0x22d4d50, flags=...) at qml/qqmlbinding.cpp:191
#9  0x00007fbe0f05e84f in QQmlObjectCreator::finalize (this=0x262d830, interrupt=...) at qml/qqmlobjectcreator.cpp:1193
#10 0x00007fbe0efeb20e in QQmlComponentPrivate::complete (enginePriv=0x1b0e750, state=0x17b3d20) at qml/qqmlcomponent.cpp:919
#11 0x00007fbe0efeb2d7 in QQmlComponentPrivate::completeCreate (this=0x17b3c80) at qml/qqmlcomponent.cpp:955
#12 0x00007fbe0efeb140 in QQmlComponent::create (this=0x17b2eb0, context=0x18ebbe0) at qml/qqmlcomponent.cpp:781
#13 0x00007fbdf5014047 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#14 0x00007fbe15e5d831 in ?? () from /usr/lib/x86_64-linux-gnu/libkwin.so.5
#15 0x00007fbe15d3d791 in KWin::Client::createDecoration(QRect const&) () from /usr/lib/x86_64-linux-gnu/libkwin.so.5
#16 0x00007fbe15d3e383 in KWin::Client::updateDecoration(bool, bool) () from /usr/lib/x86_64-linux-gnu/libkwin.so.5
#17 0x00007fbe15d9dd27 in KWin::Client::manage(unsigned int, bool) () from /usr/lib/x86_64-linux-gnu/libkwin.so.5
#18 0x00007fbe15d1f574 in KWin::Workspace::createClient(unsigned int, bool) () from /usr/lib/x86_64-linux-gnu/libkwin.so.5
#19 0x00007fbe15d8b02f in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () from /usr/lib/x86_64-linux-gnu/libkwin.so.5
#20 0x00007fbe1406f16f in QAbstractEventDispatcher::filterNativeEvent (this=<optimized out>, eventType=..., message=message@entry=0x7fbdf8002020, result=result@entry=0x7ffea8c90af8) at kernel/qabstracteventdispatcher.cpp:460
#21 0x00007fbdfe042ca5 in QXcbConnection::handleXcbEvent (this=this@entry=0x138d030, event=event@entry=0x7fbdf8002020) at qxcbconnection.cpp:1091
#22 0x00007fbdfe043c06 in QXcbConnection::processXcbEvents (this=0x138d030) at qxcbconnection.cpp:1723
#23 0x00007fbe1409f719 in QObject::event (this=0x138d030, e=<optimized out>) at kernel/qobject.cpp:1256
#24 0x00007fbe149a7afc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x138d030, e=0x7fbdf80025e0) at kernel/qapplication.cpp:3804
#25 0x00007fbe149ad036 in QApplication::notify (this=0x7ffea8c91130, receiver=0x138d030, e=0x7fbdf80025e0) at kernel/qapplication.cpp:3561
#26 0x00007fbe140722a8 in QCoreApplication::notifyInternal2 (receiver=0x138d030, event=event@entry=0x7fbdf80025e0) at kernel/qcoreapplication.cpp:1015
#27 0x00007fbe1407416a in QCoreApplication::sendEvent (event=0x7fbdf80025e0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:225
#28 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x136fd70) at kernel/qcoreapplication.cpp:1650
#29 0x00007fbe140c4a02 in QEventDispatcherUNIX::processEvents (this=0x13b86a0, flags=flags@entry=...) at kernel/qeventdispatcher_unix.cpp:579
#30 0x00007fbdfe0b28fd in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at eventdispatchers/qunixeventdispatcher.cpp:62
#31 0x00007fbe1406fffa in QEventLoop::exec (this=this@entry=0x7ffea8c91020, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#32 0x00007fbe140786bc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1285
#33 0x00007fbe1652a226 in kdemain () from /usr/lib/x86_64-linux-gnu/libkdeinit5_kwin_x11.so
#34 0x00007fbe16177830 in __libc_start_main (main=0x400730, argc=3, argv=0x7ffea8c912b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffea8c912a8) at ../csu/libc-start.c:291
#35 0x0000000000400769 in _start ()

Possible duplicates by query: bug 393063.

Reported using DrKonqi