Application: kwin_x11 (5.14.3)

Qt Version: 5.11.2
Frameworks Version: 5.52.0
Operating System: Linux 4.15.0-39-generic x86_64
Distribution: KDE neon User Edition 5.14

-- Information about the crash:
- What I was doing when the application crashed: Wakeup from suspend while HDMI cable in my laptop connected to other monitor.

- Custom settings of the application: I'm only using a plasma external widget called 'Active Window Control'

The crash can be reproduced sometimes.

-- 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 0x7f74cdfbe840 (LWP 1126))]

Thread 7 (Thread 0x7f74ad37c700 (LWP 3485)):
#0  0x00007f74cd90fcf6 in __GI_ppoll (fds=fds@entry=0x55e436a734e8, nfds=nfds@entry=1, timeout=<optimized out>, timeout@entry=0x0, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f74caf11d51 in ppoll (__ss=<optimized out>, __timeout=<optimized out>, __nfds=<optimized out>, __fds=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/poll2.h:77
#2  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x55e436a734e8) at kernel/qcore_unix.cpp:132
#3  qt_safe_poll (fds=0x55e436a734e8, nfds=1, timeout_ts=timeout_ts@entry=0x0) at kernel/qcore_unix.cpp:153
#4  0x00007f74caf1345e in QEventDispatcherUNIX::processEvents (this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:500
#5  0x00007f74caeba30a in QEventLoop::exec (this=this@entry=0x7f74ad37bd60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f74cace5bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007f74cacf0adb in QThreadPrivate::start (arg=0x55e436702990) at thread/qthread_unix.cpp:367
#8  0x00007f74c69486db in start_thread (arg=0x7f74ad37c700) at pthread_create.c:463
#9  0x00007f74cd91c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f749b6a1700 (LWP 2989)):
#0  0x00007f74c694e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e436aaf5c0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55e436aaf570, cond=0x55e436aaf598) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55e436aaf598, mutex=0x55e436aaf570) at pthread_cond_wait.c:655
#3  0x00007f74cacf194b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x55e436aaf570) at thread/qwaitcondition_unix.cpp:143
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55e436aafc00, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#5  0x00007f74c5afab18 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f74c5afaf4a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f74cacf0adb in QThreadPrivate::start (arg=0x55e436aafb80) at thread/qthread_unix.cpp:367
#8  0x00007f74c69486db in start_thread (arg=0x7f749b6a1700) at pthread_create.c:463
#9  0x00007f74cd91c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f749aa8f700 (LWP 1232)):
#0  0x00007f74c694e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f74c9ef5fb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f74c9ef5f68, cond=0x7f74c9ef5f90) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f74c9ef5f90, mutex=0x7f74c9ef5f68) at pthread_cond_wait.c:655
#3  0x00007f74c9c00954 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f74c9c00999 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f74c69486db in start_thread (arg=0x7f749aa8f700) at pthread_create.c:463
#6  0x00007f74cd91c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f74ac939700 (LWP 1218)):
#0  0x00007f74cd90fcf6 in __GI_ppoll (fds=fds@entry=0x7f74a4000d28, nfds=nfds@entry=1, timeout=<optimized out>, timeout@entry=0x0, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f74caf11d51 in ppoll (__ss=<optimized out>, __timeout=<optimized out>, __nfds=<optimized out>, __fds=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/poll2.h:77
#2  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7f74a4000d28) at kernel/qcore_unix.cpp:132
#3  qt_safe_poll (fds=0x7f74a4000d28, nfds=1, timeout_ts=timeout_ts@entry=0x0) at kernel/qcore_unix.cpp:153
#4  0x00007f74caf1345e in QEventDispatcherUNIX::processEvents (this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:500
#5  0x00007f74caeba30a in QEventLoop::exec (this=this@entry=0x7f74ac938d40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f74cace5bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007f74c53d44f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f74cacf0adb in QThreadPrivate::start (arg=0x55e436597d30) at thread/qthread_unix.cpp:367
#9  0x00007f74c69486db in start_thread (arg=0x7f74ac939700) at pthread_create.c:463
#10 0x00007f74cd91c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f74ae813700 (LWP 1169)):
#0  0x00007f74cd90fcf6 in __GI_ppoll (fds=fds@entry=0x7f74a800b598, nfds=nfds@entry=1, timeout=<optimized out>, timeout@entry=0x0, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f74caf11d51 in ppoll (__ss=<optimized out>, __timeout=<optimized out>, __nfds=<optimized out>, __fds=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/poll2.h:77
#2  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7f74a800b598) at kernel/qcore_unix.cpp:132
#3  qt_safe_poll (fds=0x7f74a800b598, nfds=1, timeout_ts=timeout_ts@entry=0x0) at kernel/qcore_unix.cpp:153
#4  0x00007f74caf1345e in QEventDispatcherUNIX::processEvents (this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:500
#5  0x00007f74caeba30a in QEventLoop::exec (this=this@entry=0x7f74ae812d30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f74cace5bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007f74c42bbe45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f74cacf0adb in QThreadPrivate::start (arg=0x7f74c4533d60) at thread/qthread_unix.cpp:367
#9  0x00007f74c69486db in start_thread (arg=0x7f74ae813700) at pthread_create.c:463
#10 0x00007f74cd91c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f74b52e2700 (LWP 1144)):
#0  0x00007f74cd90fbf9 in __GI___poll (fds=0x7f74b52e1c68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f74caa24747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f74caa2636a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f74b63d4ed9 in QXcbEventReader::run (this=0x55e43641bd50) at qxcbconnection.cpp:1391
#4  0x00007f74cacf0adb in QThreadPrivate::start (arg=0x55e43641bd50) at thread/qthread_unix.cpp:367
#5  0x00007f74c69486db in start_thread (arg=0x7f74b52e2700) at pthread_create.c:463
#6  0x00007f74cd91c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f74cdfbe840 (LWP 1126)):
[KCrash Handler]
#6  0x00007f74ca46ed7f in _mm_stream_si128(long long __vector(2)*, long long __vector(2)) (__B=..., __A=0x7f749b853d40) at /usr/lib/gcc/x86_64-linux-gnu/7/include/emmintrin.h:1473
#7  KWin::WindowQuadList::makeInterleavedArrays (this=this@entry=0x7fff355bd850, type=type@entry=7, vertices=vertices@entry=0x7f749b853d40, textureMatrix=...) at ./libkwineffects/kwineffects.cpp:1313
#8  0x00007f749e99ba5b in KWin::SceneOpenGL2Window::performPaint (this=this@entry=0x55e43677e040, mask=mask@entry=10, region=..., data=...) at ./plugins/scenes/opengl/scene_opengl.cpp:1487
#9  0x00007f749e9a4f13 in KWin::SceneOpenGL2::performPaintWindow (this=<optimized out>, w=<optimized out>, mask=<optimized out>, region=..., data=...) at ./plugins/scenes/opengl/scene_opengl.cpp:1108
#10 0x00007f749e9a5047 in KWin::SceneOpenGL2::finalDrawWindow (this=this@entry=0x55e436ba9ee0, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./plugins/scenes/opengl/scene_opengl.cpp:1090
#11 0x00007f74cd47a176 in KWin::EffectsHandlerImpl::drawWindow (this=this@entry=0x55e436797e00, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:459
#12 0x00007f74ca46aff0 in KWin::Effect::drawWindow (this=this@entry=0x7f74b0029170, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./libkwineffects/kwineffects.cpp:629
#13 0x00007f74cd47a10e in KWin::EffectsHandlerImpl::drawWindow (this=this@entry=0x55e436797e00, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:456
#14 0x00007f74ca179c85 in KWin::BlurEffect::drawWindow (this=this@entry=0x7f74b002c620, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./effects/blur/blur.cpp:567
#15 0x00007f74cd47a10e in KWin::EffectsHandlerImpl::drawWindow (this=this@entry=0x55e436797e00, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:456
#16 0x00007f74ca46aff0 in KWin::Effect::drawWindow (this=this@entry=0x7f7494001170, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./libkwineffects/kwineffects.cpp:629
#17 0x00007f74cd47a10e in KWin::EffectsHandlerImpl::drawWindow (this=this@entry=0x55e436797e00, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:456
#18 0x00007f74cd4670b0 in KWin::Scene::finalPaintWindow (this=this@entry=0x55e436ba9ee0, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./scene.cpp:604
#19 0x00007f74cd479f9d in KWin::EffectsHandlerImpl::paintWindow (this=this@entry=0x55e436797e00, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:422
#20 0x00007f74ca1fdeba in KWin::KscreenEffect::paintWindow (this=this@entry=0x7f74b0029170, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./effects/kscreen/kscreen.cpp:127
#21 0x00007f74cd479f3e in KWin::EffectsHandlerImpl::paintWindow (this=this@entry=0x55e436797e00, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:419
#22 0x00007f74ca46ae80 in KWin::Effect::paintWindow (this=this@entry=0x7f74b002c620, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./libkwineffects/kwineffects.cpp:599
#23 0x00007f74cd479f3e in KWin::EffectsHandlerImpl::paintWindow (this=this@entry=0x55e436797e00, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:419
#24 0x00007f74ca478327 in KWin::AnimationEffect::paintWindow (this=this@entry=0x7f7494001170, w=w@entry=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./libkwineffects/kwinanimationeffect.cpp:644
#25 0x00007f74cd479f3e in KWin::EffectsHandlerImpl::paintWindow (this=this@entry=0x55e436797e00, w=0x55e436447dd0, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:419
#26 0x00007f74cd46d182 in KWin::Scene::paintWindow (this=this@entry=0x55e436ba9ee0, w=0x55e43677e040, mask=10, region=..., quads=...) at ./scene.cpp:476
#27 0x00007f74cd46befc in KWin::Scene::paintSimpleScreen (this=this@entry=0x55e436ba9ee0, orig_mask=orig_mask@entry=8, region=...) at ./scene.cpp:374
#28 0x00007f749e998c82 in KWin::SceneOpenGL2::paintSimpleScreen (this=this@entry=0x55e436ba9ee0, mask=mask@entry=8, region=...) at ./plugins/scenes/opengl/scene_opengl.cpp:1053
#29 0x00007f74cd46c717 in KWin::Scene::finalPaintScreen (this=this@entry=0x55e436ba9ee0, mask=mask@entry=8, region=..., data=...) at ./scene.cpp:199
#30 0x00007f74cd479cf5 in KWin::EffectsHandlerImpl::paintScreen (this=this@entry=0x55e436797e00, mask=mask@entry=8, region=..., data=...) at ./effects.cpp:379
#31 0x00007f74ca46add1 in KWin::Effect::paintScreen (this=this@entry=0x7f74b0029170, mask=mask@entry=8, region=..., data=...) at ./libkwineffects/kwineffects.cpp:584
#32 0x00007f74cd479c9d in KWin::EffectsHandlerImpl::paintScreen (this=this@entry=0x55e436797e00, mask=mask@entry=8, region=..., data=...) at ./effects.cpp:376
#33 0x00007f74ca46add1 in KWin::Effect::paintScreen (this=this@entry=0x7f74b002c620, mask=mask@entry=8, region=..., data=...) at ./libkwineffects/kwineffects.cpp:584
#34 0x00007f74cd479c9d in KWin::EffectsHandlerImpl::paintScreen (this=this@entry=0x55e436797e00, mask=mask@entry=8, region=..., data=...) at ./effects.cpp:376
#35 0x00007f74ca46add1 in KWin::Effect::paintScreen (this=this@entry=0x7f7494001170, mask=mask@entry=8, region=..., data=...) at ./libkwineffects/kwineffects.cpp:584
#36 0x00007f74cd479c9d in KWin::EffectsHandlerImpl::paintScreen (this=this@entry=0x55e436797e00, mask=8, region=..., data=...) at ./effects.cpp:376
#37 0x00007f74cd46c40e in KWin::Scene::paintScreen (this=this@entry=0x55e436ba9ee0, mask=mask@entry=0x7fff355be8f0, damage=..., repaint=..., updateRegion=updateRegion@entry=0x7fff355be8d8, validRegion=validRegion@entry=0x7fff355be8e0, projection=..., outputGeometry=...) at ./scene.cpp:149
#38 0x00007f749e99edf1 in KWin::SceneOpenGL::paint (this=this@entry=0x55e436ba9ee0, damage=..., toplevels=...) at ./plugins/scenes/opengl/scene_opengl.cpp:702
#39 0x00007f74cd45eb02 in KWin::Compositor::performCompositing (this=0x55e4364a8920) at ./composite.cpp:745
#40 0x00007f74caeebb9b in QObject::event (this=0x55e4364a8920, e=<optimized out>) at kernel/qobject.cpp:1273
#41 0x00007f74cbc48e1c in QApplicationPrivate::notify_helper (this=this@entry=0x55e4364108a0, receiver=receiver@entry=0x55e4364a8920, e=e@entry=0x7fff355bed30) at kernel/qapplication.cpp:3727
#42 0x00007f74cbc503ef in QApplication::notify (this=0x7fff355befe0, receiver=0x55e4364a8920, e=0x7fff355bed30) at kernel/qapplication.cpp:3486
#43 0x00007f74caebbfe8 in QCoreApplication::notifyInternal2 (receiver=0x55e4364a8920, event=event@entry=0x7fff355bed30) at kernel/qcoreapplication.cpp:1048
#44 0x00007f74caf154be in QCoreApplication::sendEvent (event=0x7fff355bed30, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#45 QTimerInfoList::activateTimers (this=this@entry=0x55e436460530) at kernel/qtimerinfo_unix.cpp:643
#46 0x00007f74caf128ec in QEventDispatcherUNIXPrivate::activateTimers (this=this@entry=0x55e436460490) at kernel/qeventdispatcher_unix.cpp:249
#47 0x00007f74caf136c2 in QEventDispatcherUNIX::processEvents (this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:514
#48 0x00007f74b64609fd in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at qunixeventdispatcher.cpp:68
#49 0x00007f74caeba30a in QEventLoop::exec (this=this@entry=0x7fff355beef0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#50 0x00007f74caec34d0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#51 0x00007f74cdbf4dab in kdemain (argc=<optimized out>, argv=0x7fff355bf178) at ./main_x11.cpp:468
#52 0x00007f74cd81cb97 in __libc_start_main (main=0x55e435df4720 <main>, argc=3, argv=0x7fff355bf178, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff355bf168) at ../csu/libc-start.c:310
#53 0x000055e435df475a in _start ()

Possible duplicates by query: bug 400038, bug 399499.

Reported using DrKonqi