.
Thread 4 (Thread 0x7f888a040700 (LWP 1655)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f88ad62dfb8) at ../sysdeps/nptl/futex-internal.h:183
        __ret = -512
        oldtype = 0
        err = <optimized out>
        oldtype = <optimized out>
        err = <optimized out>
        __ret = <optimized out>
        resultvar = <optimized out>
        __arg4 = <optimized out>
        __arg3 = <optimized out>
        __arg2 = <optimized out>
        __arg1 = <optimized out>
        _a4 = <optimized out>
        _a3 = <optimized out>
        _a2 = <optimized out>
        _a1 = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f88ad62df68, cond=0x7f88ad62df90) at pthread_cond_wait.c:508
        spin = 0
        buffer = {__routine = 0x7f88acfe9050 <__condvar_cleanup_waiting>, __arg = 0x7f888a03fd90, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 0, cond = 0x7f88ad62df90, mutex = 0x7f88ad62df68, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        g1_start = <optimized out>
        signals = <optimized out>
        result = 0
        wseq = 0
        seq = 0
        private = <optimized out>
        maxspin = <optimized out>
        err = <optimized out>
        result = <optimized out>
        wseq = <optimized out>
        g = <optimized out>
        seq = <optimized out>
        flags = <optimized out>
        private = <optimized out>
        signals = <optimized out>
        g1_start = <optimized out>
        spin = <optimized out>
        buffer = <optimized out>
        cbuffer = <optimized out>
        s = <optimized out>
#2  __pthread_cond_wait (cond=0x7f88ad62df90, mutex=0x7f88ad62df68) at pthread_cond_wait.c:638
No locals.
#3  0x00007f88ad5305fa in ?? () from /lib/x86_64-linux-gnu/libQt5Script.so.5
No symbol table info available.
#4  0x00007f88ad53061f in ?? () from /lib/x86_64-linux-gnu/libQt5Script.so.5
No symbol table info available.
#5  0x00007f88acfe2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140224407799552, -244649255337912597, 140728368811326, 140728368811327, 140728368811328, 140224407797504, 255509784495986411, 255453041751693035}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#6  0x00007f88af24d153 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 3 (Thread 0x7f88a6b6a700 (LWP 1443)):
#0  0x00007ffde07796f1 in ?? ()
No symbol table info available.
#1  0x00007ffde0779918 in clock_gettime ()
No symbol table info available.
#2  0x00007f88af20b215 in __GI___clock_gettime (clock_id=1, tp=0x7f88a6b69be0) at ../sysdeps/unix/sysv/linux/clock_gettime.c:38
        sc_ret = <optimized out>
        vdsop = <optimized out>
#3  0x00007f88adc43185 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#4  0x00007f88adc41a1d in QTimerInfoList::updateCurrentTime() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#5  0x00007f88adc41ff9 in QTimerInfoList::timerWait(timespec&) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#6  0x00007f88adc40f4c in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#7  0x00007f88adbea82b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#8  0x00007f88ada23775 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#9  0x00007f88aec52efa in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
No symbol table info available.
#10 0x00007f88ada249c2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#11 0x00007f88acfe2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140224889267968, -244649255337912597, 140728368812814, 140728368812815, 140728368813008, 140224889265920, 255466722080134891, 255453041751693035}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#12 0x00007f88af24d153 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 2 (Thread 0x7f88a4cbb700 (LWP 1538)):
#0  0x00007f88ada24ec3 in QMutex::unlock() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#1  0x00007f88adbee998 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#2  0x00007f88adc40b67 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#3  0x00007f88adbea82b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#4  0x00007f88ada23775 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#5  0x00007f88ac7593a9 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#6  0x00007f88ada249c2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#7  0x00007f88acfe2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140224857093888, -244649255337912597, 140728368811582, 140728368811583, 140728368811776, 140224857091840, 255470818942064363, 255453041751693035}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#8  0x00007f88af24d153 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 1 (Thread 0x7f88a8494800 (LWP 1415)):
#0  __GI_raise (sig=<optimized out>) at ../sysdeps/unix/sysv/linux/raise.c:50
        set = {__val = {0, 8071235337022855936, 0, 140225025818345, 140225025832256, 140225030635764, 94731020050544, 42, 140225025831952, 42, 1256, 0, 0, 0, 0, 0}}
        pid = <optimized out>
        tid = <optimized out>
        ret = <optimized out>
#1  0x00007f88aeda4a9a in KCrash::defaultCrashHandler(int) () from /lib/x86_64-linux-gnu/libKF5Crash.so.5
No symbol table info available.
#2  <signal handler called>
No locals.
#3  0x00007f88ad70de09 in ?? () from /lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
No symbol table info available.
#4  0x00007f88ad70dec9 in ?? () from /lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
No symbol table info available.
#5  0x00007f88ad70fce2 in ?? () from /lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
No symbol table info available.
#6  0x00007f88ad7105d1 in ?? () from /lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
No symbol table info available.
#7  0x00007f88aef0f304 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#8  0x00007f88ad67665e in ?? () from /lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
No symbol table info available.
#9  0x00007f88aef0f304 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#10 0x00007f88aef0f304 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#11 0x00007f88aef0f304 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#12 0x00007f88aef0f1d0 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#13 0x00007f88aef0f177 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#14 0x00007f88aef0f177 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#15 0x00007f88aef0f177 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#16 0x00007f88ace0b2fa in KWin::AnimationEffect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwineffects.so.12
No symbol table info available.
#17 0x00007f88aef0f177 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#18 0x00007f88ace0b2fa in KWin::AnimationEffect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwineffects.so.12
No symbol table info available.
#19 0x00007f88aef0f177 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#20 0x00007f88aef9289b in KWin::Scene::paintWindow(KWin::Scene::Window*, int, QRegion, KWin::WindowQuadList) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#21 0x00007f88aef90251 in KWin::Scene::paintSimpleScreen(int, QRegion) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#22 0x00007f88a4052d57 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
No symbol table info available.
#23 0x00007f88aef91ea0 in KWin::Scene::finalPaintScreen(int, QRegion, KWin::ScreenPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#24 0x00007f88aef0ef8e in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#25 0x00007f88aef0ef3f in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#26 0x00007f88aef0ef3f in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#27 0x00007f88aef0ef3f in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#28 0x00007f88aef0ef3f in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#29 0x00007f88aef0ef3f in KWin::EffectsHandlerImpl::paintScreen(int, QRegion const&, KWin::ScreenPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#30 0x00007f88aef91b4e in KWin::Scene::paintScreen(int*, QRegion const&, QRegion const&, QRegion*, QRegion*, QMatrix4x4 const&, QRect const&) () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#31 0x00007f88a405aa1e in KWin::SceneOpenGL::paint(QRegion, QList<KWin::Toplevel*>) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
No symbol table info available.
#32 0x00007f88aeed4201 in KWin::Compositor::performCompositing() () from /lib/x86_64-linux-gnu/libkwin.so.5
No symbol table info available.
#33 0x00007f88adc18045 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#34 0x00007f88ae603a66 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
No symbol table info available.
#35 0x00007f88ae60d0e0 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
No symbol table info available.
#36 0x00007f88adbebc8a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#37 0x00007f88adc42bf0 in QTimerInfoList::activateTimers() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#38 0x00007f88adc40eaf in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#39 0x00007f88a7ded5f2 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
No symbol table info available.
#40 0x00007f88adbea82b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#41 0x00007f88adbf2596 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#42 0x00007f88af3269ef in kdemain () from /lib/x86_64-linux-gnu/libkdeinit5_kwin_x11.so
No symbol table info available.
#43 0x00007f88af1520b3 in __libc_start_main (main=0x56284664e060, argc=3, argv=0x7ffde06ed918, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffde06ed908) at ../csu/libc-start.c:308
        self = <optimized out>
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {94730979697008, -244649255337912597, 94730979696752, 140728368814352, 0, 0, 243497921748997867, 255450525024851691}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x3, 0x7ffde06ed918}, data = {prev = 0x0, cleanup = 0x0, canceltype = 3}}}
        not_first_call = <optimized out>
#44 0x000056284664e09e in _start ()
No symbol table info available.