Application: plasmashell (5.23.4)

Qt Version: 5.15.3
Frameworks Version: 5.88.0
Operating System: Linux 5.12.0-051200-generic x86_64
Windowing System: X11
Distribution: KDE neon User - Plasma 25th Anniversary Edition
DrKonqi: 5.23.4 [KCrashBackend]

-- Information about the crash:
- What I was doing when the application crashed:
You can wait for monitor to turn off according to settings in Energy tab in Settings or manually trigger crash by executing "xset dpms force off"

The crash can be reproduced every time.

-- Backtrace:
Application: Plazma (plasmashell), signal: Segmentation fault

[New LWP 2682]
[New LWP 2695]
[New LWP 2733]
[New LWP 2735]
[New LWP 2736]
[New LWP 2737]
[New LWP 2738]
[New LWP 2739]
[New LWP 2740]
[New LWP 2741]
[New LWP 2742]
[New LWP 2743]
[New LWP 2744]
[New LWP 2745]
[New LWP 2746]
[New LWP 2747]
[New LWP 2748]
[New LWP 2749]
[New LWP 2750]
[New LWP 2751]
[New LWP 2752]
[New LWP 2828]
[New LWP 3178]
[New LWP 3179]
[New LWP 3247]
[New LWP 3249]
[New LWP 3301]
[New LWP 3755]
[New LWP 3837]
[New LWP 3838]
[New LWP 3840]
[New LWP 3842]
[New LWP 4616]
[New LWP 4617]
[New LWP 4619]
[New LWP 5006]
[New LWP 5007]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f64a0073c90) at ../sysdeps/nptl/futex-internal.h:183
__preamble__
[Current thread is 1 (Thread 0x7f6547d329c0 (LWP 2667))]

Thread 38 (Thread 0x7f645500e700 (LWP 5007)):
[KCrash Handler]
#4  0x00007f648079c750 in ?? ()
#5  0x00007f654db8fb14 in QSGOpaqueTextureMaterialShader::updateState (this=0x7f64304a9c20, state=..., newEffect=<optimized out>, oldEffect=0x0) at scenegraph/util/qsgtexturematerial.cpp:112
#6  0x00007f654db731b9 in QSGBatchRenderer::Renderer::renderMergedBatch (batch=0x7f64302ca9a0, this=0x7f6430499b70) at ../../include/QtQuick/5.15.3/QtQuick/private/../../../../../src/quick/scenegraph/coreapi/qsgrenderer_p.h:197
#7  QSGBatchRenderer::Renderer::renderMergedBatch (this=0x7f6430499b70, batch=0x7f64302ca9a0) at scenegraph/coreapi/qsgbatchrenderer.cpp:3026
#8  0x00007f654db78d15 in QSGBatchRenderer::Renderer::renderBatches (this=this@entry=0x7f6430499b70) at scenegraph/coreapi/qsgbatchrenderer.cpp:4066
#9  0x00007f654db7926a in QSGBatchRenderer::Renderer::render (this=<optimized out>) at scenegraph/coreapi/qsgbatchrenderer.cpp:4363
#10 0x00007f654db5ce24 in QSGRenderer::renderScene (bindable=..., this=0x7f6430499b70) at scenegraph/coreapi/qsgrenderer.cpp:264
#11 QSGRenderer::renderScene (this=0x7f6430499b70, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:220
#12 0x00007f654dbd414a in QSGOpenGLLayer::grab (this=0x7f6430455850) at ../../include/QtQuick/5.15.3/QtQuick/private/../../../../../src/quick/scenegraph/coreapi/qsgrenderer_p.h:172
#13 0x00007f654dbd4745 in QSGOpenGLLayer::updateTexture (this=0x7f6430455850) at scenegraph/qsgopengllayer.cpp:187
#14 0x00007f654dd3b526 in QQuickOpenGLShaderEffectMaterial::updateTextures (this=0x7f6430456210) at items/qquickopenglshadereffectnode.cpp:474
#15 0x00007f654db5d594 in QSGRenderer::preprocess (this=0x7f64304915e0) at scenegraph/coreapi/qsgrenderer.cpp:337
#16 0x00007f654db5cdeb in QSGRenderer::renderScene (bindable=..., this=0x7f64304915e0) at scenegraph/coreapi/qsgrenderer.cpp:238
#17 QSGRenderer::renderScene (this=0x7f64304915e0, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:220
#18 0x00007f654dbd414a in QSGOpenGLLayer::grab (this=0x7f64304568e0) at ../../include/QtQuick/5.15.3/QtQuick/private/../../../../../src/quick/scenegraph/coreapi/qsgrenderer_p.h:172
#19 0x00007f654dbd4745 in QSGOpenGLLayer::updateTexture (this=0x7f64304568e0) at scenegraph/qsgopengllayer.cpp:187
#20 0x00007f654dd3b526 in QQuickOpenGLShaderEffectMaterial::updateTextures (this=0x7f6430457220) at items/qquickopenglshadereffectnode.cpp:474
#21 0x00007f654db5d594 in QSGRenderer::preprocess (this=0x7f6430488e70) at scenegraph/coreapi/qsgrenderer.cpp:337
#22 0x00007f654db5cdeb in QSGRenderer::renderScene (bindable=..., this=0x7f6430488e70) at scenegraph/coreapi/qsgrenderer.cpp:238
#23 QSGRenderer::renderScene (this=0x7f6430488e70, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:220
#24 0x00007f654dbd414a in QSGOpenGLLayer::grab (this=0x7f6430457870) at ../../include/QtQuick/5.15.3/QtQuick/private/../../../../../src/quick/scenegraph/coreapi/qsgrenderer_p.h:172
#25 0x00007f654dbd4745 in QSGOpenGLLayer::updateTexture (this=0x7f6430457870) at scenegraph/qsgopengllayer.cpp:187
#26 0x00007f654dd3b526 in QQuickOpenGLShaderEffectMaterial::updateTextures (this=0x7f6430458230) at items/qquickopenglshadereffectnode.cpp:474
#27 0x00007f654db5d594 in QSGRenderer::preprocess (this=0x7f6430480ee0) at scenegraph/coreapi/qsgrenderer.cpp:337
#28 0x00007f654db5cdeb in QSGRenderer::renderScene (bindable=..., this=0x7f6430480ee0) at scenegraph/coreapi/qsgrenderer.cpp:238
#29 QSGRenderer::renderScene (this=0x7f6430480ee0, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:220
#30 0x00007f654dbd414a in QSGOpenGLLayer::grab (this=0x7f6430458880) at ../../include/QtQuick/5.15.3/QtQuick/private/../../../../../src/quick/scenegraph/coreapi/qsgrenderer_p.h:172
#31 0x00007f654dbd4745 in QSGOpenGLLayer::updateTexture (this=0x7f6430458880) at scenegraph/qsgopengllayer.cpp:187
#32 0x00007f654dd3b526 in QQuickOpenGLShaderEffectMaterial::updateTextures (this=0x7f6430459240) at items/qquickopenglshadereffectnode.cpp:474
#33 0x00007f654db5d594 in QSGRenderer::preprocess (this=0x7f6430478620) at scenegraph/coreapi/qsgrenderer.cpp:337
#34 0x00007f654db5cdeb in QSGRenderer::renderScene (bindable=..., this=0x7f6430478620) at scenegraph/coreapi/qsgrenderer.cpp:238
#35 QSGRenderer::renderScene (this=0x7f6430478620, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:220
#36 0x00007f654dbd414a in QSGOpenGLLayer::grab (this=0x7f64304598c0) at ../../include/QtQuick/5.15.3/QtQuick/private/../../../../../src/quick/scenegraph/coreapi/qsgrenderer_p.h:172
#37 0x00007f654dbd4745 in QSGOpenGLLayer::updateTexture (this=0x7f64304598c0) at scenegraph/qsgopengllayer.cpp:187
#38 0x00007f654dd3b526 in QQuickOpenGLShaderEffectMaterial::updateTextures (this=0x7f643045a280) at items/qquickopenglshadereffectnode.cpp:474
#39 0x00007f654db5d594 in QSGRenderer::preprocess (this=0x7f643046a9f0) at scenegraph/coreapi/qsgrenderer.cpp:337
#40 0x00007f654db5cdeb in QSGRenderer::renderScene (bindable=..., this=0x7f643046a9f0) at scenegraph/coreapi/qsgrenderer.cpp:238
#41 QSGRenderer::renderScene (this=0x7f643046a9f0, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:220
#42 0x00007f654dbd414a in QSGOpenGLLayer::grab (this=0x7f643045a9f0) at ../../include/QtQuick/5.15.3/QtQuick/private/../../../../../src/quick/scenegraph/coreapi/qsgrenderer_p.h:172
#43 0x00007f654dbd4745 in QSGOpenGLLayer::updateTexture (this=0x7f643045a9f0) at scenegraph/qsgopengllayer.cpp:187
#44 0x00007f654dd3b526 in QQuickOpenGLShaderEffectMaterial::updateTextures (this=0x7f643045b3b0) at items/qquickopenglshadereffectnode.cpp:474
#45 0x00007f654db5d594 in QSGRenderer::preprocess (this=0x7f643046b440) at scenegraph/coreapi/qsgrenderer.cpp:337
#46 0x00007f654db5cdeb in QSGRenderer::renderScene (bindable=..., this=0x7f643046b440) at scenegraph/coreapi/qsgrenderer.cpp:238
#47 QSGRenderer::renderScene (this=0x7f643046b440, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:220
#48 0x00007f654dbd414a in QSGOpenGLLayer::grab (this=0x7f643045bb20) at ../../include/QtQuick/5.15.3/QtQuick/private/../../../../../src/quick/scenegraph/coreapi/qsgrenderer_p.h:172
#49 0x00007f654dbd4745 in QSGOpenGLLayer::updateTexture (this=0x7f643045bb20) at scenegraph/qsgopengllayer.cpp:187
#50 0x00007f654dd3b526 in QQuickOpenGLShaderEffectMaterial::updateTextures (this=0x7f643045c470) at items/qquickopenglshadereffectnode.cpp:474
#51 0x00007f654db5d594 in QSGRenderer::preprocess (this=0x7f64301e6340) at scenegraph/coreapi/qsgrenderer.cpp:337
#52 0x00007f654db5cdeb in QSGRenderer::renderScene (bindable=..., this=0x7f64301e6340) at scenegraph/coreapi/qsgrenderer.cpp:238
#53 QSGRenderer::renderScene (this=0x7f64301e6340, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:220
#54 0x00007f654dbd414a in QSGOpenGLLayer::grab (this=0x7f64304534e0) at ../../include/QtQuick/5.15.3/QtQuick/private/../../../../../src/quick/scenegraph/coreapi/qsgrenderer_p.h:172
#55 0x00007f654dbd4745 in QSGOpenGLLayer::updateTexture (this=0x7f64304534e0) at scenegraph/qsgopengllayer.cpp:187
#56 0x00007f654dd3b526 in QQuickOpenGLShaderEffectMaterial::updateTextures (this=0x7f643044ee70) at items/qquickopenglshadereffectnode.cpp:474
#57 0x00007f654db5d594 in QSGRenderer::preprocess (this=0x7f643009a900) at scenegraph/coreapi/qsgrenderer.cpp:337
#58 0x00007f654db5cdeb in QSGRenderer::renderScene (bindable=warning: RTTI symbol not found for class 'QSGRenderer::renderScene(unsigned int)::B'
..., this=0x7f643009a900) at scenegraph/coreapi/qsgrenderer.cpp:238
#59 QSGRenderer::renderScene (this=0x7f643009a900, bindable=warning: RTTI symbol not found for class 'QSGRenderer::renderScene(unsigned int)::B'
...) at scenegraph/coreapi/qsgrenderer.cpp:220
#60 0x00007f654db5d2f3 in QSGRenderer::renderScene (this=<optimized out>, fboId=<optimized out>) at scenegraph/coreapi/qsgrenderer.cpp:212
#61 0x00007f654dbcc087 in QSGDefaultRenderContext::renderNextFrame (this=0x562830ada550, renderer=0x7f643009a900, fboId=<optimized out>) at scenegraph/qsgdefaultrendercontext.cpp:228
#62 0x00007f654dc39a39 in QQuickWindowPrivate::renderSceneGraph (this=this@entry=0x5628357cd040, size=..., surfaceSize=...) at items/qquickwindow.cpp:616
#63 0x00007f654dbd9bc9 in QSGRenderThread::syncAndRender (this=0x5628356a99a0, grabImage=0x0) at /usr/include/x86_64-linux-gnu/qt5/QtGui/5.15.3/QtGui/private/qrhi_p.h:1259
#64 0x00007f654dbde057 in QSGRenderThread::run (this=0x5628356a99a0) at scenegraph/qsgthreadedrenderloop.cpp:1043
#65 0x00007f654bf6c45c in QThreadPrivate::start (arg=0x5628356a99a0) at thread/qthread_unix.cpp:329
#66 0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#67 0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 37 (Thread 0x7f645580f700 (LWP 5006)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56283297a080) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56283297a030, cond=0x56283297a058) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x56283297a058, mutex=0x56283297a030) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 36 (Thread 0x7f6477fff700 (LWP 4619)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f64a00fcc50) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f64a00fcc00, cond=0x7f64a00fcc28) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f64a00fcc28, mutex=0x7f64a00fcc00) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 35 (Thread 0x7f64c1ffb700 (LWP 4617)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562834953b84) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x562834953b30, cond=0x562834953b58) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x562834953b58, mutex=0x562834953b30) at pthread_cond_wait.c:638
#3  0x00007f654bf725cb in QWaitConditionPrivate::wait (deadline=..., this=0x562834953b30) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x7f65400036a8, mutex=mutex@entry=0x7f65400036a0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f654dbddc24 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x7f6540003698) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x7f6540003600) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f654dbde099 in QSGRenderThread::run (this=0x7f6540003600) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f654bf6c45c in QThreadPrivate::start (arg=0x7f6540003600) at thread/qthread_unix.cpp:329
#9  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 34 (Thread 0x7f64c17fa700 (LWP 4616)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56283572fcb0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56283572fc60, cond=0x56283572fc88) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x56283572fc88, mutex=0x56283572fc60) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 33 (Thread 0x7f6456811700 (LWP 3842)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628305434c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x562830543470, cond=0x562830543498) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x562830543498, mutex=0x562830543470) at pthread_cond_wait.c:638
#3  0x00007f654bf725cb in QWaitConditionPrivate::wait (deadline=..., this=0x562830543470) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x562833f6a138, mutex=mutex@entry=0x562833f6a130, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f654dbddc24 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x562833f6a128) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x562833f6a090) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f654dbde099 in QSGRenderThread::run (this=0x562833f6a090) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f654bf6c45c in QThreadPrivate::start (arg=0x562833f6a090) at thread/qthread_unix.cpp:329
#9  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 32 (Thread 0x7f6457012700 (LWP 3840)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562833fbd2e0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x562833fbd290, cond=0x562833fbd2b8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x562833fbd2b8, mutex=0x562833fbd290) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7f6475a08700 (LWP 3838)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562833c96230) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x562833c961e0, cond=0x562833c96208) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x562833c96208, mutex=0x562833c961e0) at pthread_cond_wait.c:638
#3  0x00007f654bf725cb in QWaitConditionPrivate::wait (deadline=..., this=0x562833c961e0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x562833cd9c08, mutex=mutex@entry=0x562833cd9c00, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f654dbddc24 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x562833cd9bf8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x562833cd9b60) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f654dbde099 in QSGRenderThread::run (this=0x562833cd9b60) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f654bf6c45c in QThreadPrivate::start (arg=0x562833cd9b60) at thread/qthread_unix.cpp:329
#9  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7f6457813700 (LWP 3837)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562833e746d0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x562833e74680, cond=0x562833e746a8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x562833e746a8, mutex=0x562833e74680) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7f6476a0a700 (LWP 3755)):
#0  0x00007f654bbddaff in __GI___poll (fds=0x7f6458000b60, nfds=1, timeout=3142816) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f654a48636e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f654a4864a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f654c1ad61b in QEventDispatcherGlib::processEvents (this=0x7f6458008550, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f654c1518ab in QEventLoop::exec (this=this@entry=0x7f6476a09ba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f654bf6b2c2 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f647431007c in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f654bf6c45c in QThreadPrivate::start (arg=0x56283127eb20) at thread/qthread_unix.cpp:329
#8  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7f64977fe700 (LWP 3301)):
#0  __GI___libc_read (nbytes=16, buf=0x7f64977fd990, fd=36) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=36, buf=0x7f64977fd990, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f654a4ceb2f in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f654a485ebe in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f654a486312 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f654a4864a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f654c1ad61b in QEventDispatcherGlib::processEvents (this=0x7f647c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f654c1518ab in QEventLoop::exec (this=this@entry=0x7f64977fdba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#8  0x00007f654bf6b2c2 in QThread::exec (this=this@entry=0x562831afe280) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#9  0x00007f654db183fa in QQuickPixmapReader::run (this=0x562831afe280) at util/qquickpixmapcache.cpp:1024
#10 0x00007f654bf6c45c in QThreadPrivate::start (arg=0x562831afe280) at thread/qthread_unix.cpp:329
#11 0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7f649cea9700 (LWP 3249)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628319891a0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x562831989150, cond=0x562831989178) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x562831989178, mutex=0x562831989150) at pthread_cond_wait.c:638
#3  0x00007f654bf725cb in QWaitConditionPrivate::wait (deadline=..., this=0x562831989150) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x562831989058, mutex=mutex@entry=0x562831989050, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f654dbddc24 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x562831989048) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x562831988fb0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f654dbde099 in QSGRenderThread::run (this=0x562831988fb0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f654bf6c45c in QThreadPrivate::start (arg=0x562831988fb0) at thread/qthread_unix.cpp:329
#9  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7f649d6aa700 (LWP 3247)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628319d8bf0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628319d8ba0, cond=0x5628319d8bc8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628319d8bc8, mutex=0x5628319d8ba0) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7f64e3005700 (LWP 3179)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56283029dda0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56283029dd50, cond=0x56283029dd78) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x56283029dd78, mutex=0x56283029dd50) at pthread_cond_wait.c:638
#3  0x00007f654bf725cb in QWaitConditionPrivate::wait (deadline=..., this=0x56283029dd50) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x56283029d508, mutex=mutex@entry=0x56283029d500, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f654dbddc24 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x56283029d4f8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x56283029d460) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f654dbde099 in QSGRenderThread::run (this=0x56283029d460) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f654bf6c45c in QThreadPrivate::start (arg=0x56283029d460) at thread/qthread_unix.cpp:329
#9  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f64ea5ed700 (LWP 3178)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56283178f574) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56283178f520, cond=0x56283178f548) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x56283178f548, mutex=0x56283178f520) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f64eb7fe700 (LWP 2828)):
#0  __GI___libc_read (nbytes=16, buf=0x7f64eb7fd9b0, fd=15) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=15, buf=0x7f64eb7fd9b0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f654a4ceb2f in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f654a485ebe in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f654a486312 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f654a4864a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f654c1ad61b in QEventDispatcherGlib::processEvents (this=0x7f64d8000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f654c1518ab in QEventLoop::exec (this=this@entry=0x7f64eb7fdbc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#8  0x00007f654bf6b2c2 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#9  0x00007f654d77e549 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f654bf6c45c in QThreadPrivate::start (arg=0x5628306bb9e0) at thread/qthread_unix.cpp:329
#11 0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f64ebfff700 (LWP 2752)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303db368) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303db318, cond=0x5628303db340) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303db340, mutex=0x5628303db318) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f64e3fff700 (LWP 2751)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303db368) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303db318, cond=0x5628303db340) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303db340, mutex=0x5628303db318) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f6508ff9700 (LWP 2750)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303db36c) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303db318, cond=0x5628303db340) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303db340, mutex=0x5628303db318) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f65097fa700 (LWP 2749)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303db36c) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303db318, cond=0x5628303db340) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303db340, mutex=0x5628303db318) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f6509ffb700 (LWP 2748)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303db36c) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303db318, cond=0x5628303db340) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303db340, mutex=0x5628303db318) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f650a7fc700 (LWP 2747)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303dadfc) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303dada8, cond=0x5628303dadd0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303dadd0, mutex=0x5628303dada8) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f650affd700 (LWP 2746)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303dadf8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303dada8, cond=0x5628303dadd0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303dadd0, mutex=0x5628303dada8) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f650b7fe700 (LWP 2745)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303dadf8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303dada8, cond=0x5628303dadd0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303dadd0, mutex=0x5628303dada8) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f650bfff700 (LWP 2744)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303dadf8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303dada8, cond=0x5628303dadd0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303dadd0, mutex=0x5628303dada8) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f6530c77700 (LWP 2743)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303dadf8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303dada8, cond=0x5628303dadd0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303dadd0, mutex=0x5628303dada8) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f6531478700 (LWP 2742)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303dadfc) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303dada8, cond=0x5628303dadd0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303dadd0, mutex=0x5628303dada8) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f6531c79700 (LWP 2741)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303dadfc) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303dada8, cond=0x5628303dadd0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303dadd0, mutex=0x5628303dada8) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f653247a700 (LWP 2740)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303dadfc) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303dada8, cond=0x5628303dadd0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303dadd0, mutex=0x5628303dada8) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f653cd95700 (LWP 2739)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303dadfc) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303dada8, cond=0x5628303dadd0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303dadd0, mutex=0x5628303dada8) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f653d596700 (LWP 2738)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303dadfc) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303dada8, cond=0x5628303dadd0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303dadd0, mutex=0x5628303dada8) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f653dd97700 (LWP 2737)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303dadfc) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303dada8, cond=0x5628303dadd0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303dadd0, mutex=0x5628303dada8) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f653e598700 (LWP 2736)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303dadfc) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303dada8, cond=0x5628303dadd0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303dadd0, mutex=0x5628303dada8) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f654482c700 (LWP 2735)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628302cbaac) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628302cba58, cond=0x5628302cba80) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628302cba80, mutex=0x5628302cba58) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f65451ba700 (LWP 2733)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5628303d57ec) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5628303d5798, cond=0x5628303d57c0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5628303d57c0, mutex=0x5628303d5798) at pthread_cond_wait.c:638
#3  0x00007f653e65ab3b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f653e65a88b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f654600d700 (LWP 2695)):
#0  0x00007f654bbddaff in __GI___poll (fds=0x7f6538004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f654a48636e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f654a4864a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f654c1ad61b in QEventDispatcherGlib::processEvents (this=0x7f6538000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f654c1518ab in QEventLoop::exec (this=this@entry=0x7f654600cbb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f654bf6b2c2 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f654cadef4b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f654bf6c45c in QThreadPrivate::start (arg=0x7f654cb62d80) at thread/qthread_unix.cpp:329
#8  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f6546cda700 (LWP 2682)):
#0  0x00007f654bbddaff in __GI___poll (fds=0x7f6546cd9ae8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f654e2f1c1a in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f654e2f390a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f65473ebe88 in QXcbEventQueue::run (this=0x5628301342e0) at qxcbeventqueue.cpp:228
#4  0x00007f654bf6c45c in QThreadPrivate::start (arg=0x5628301342e0) at thread/qthread_unix.cpp:329
#5  0x00007f654aeb7609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f654bbea293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f6547d329c0 (LWP 2667)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f64a0073c90) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f64a0073c40, cond=0x7f64a0073c68) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f64a0073c68, mutex=0x7f64a0073c40) at pthread_cond_wait.c:638
#3  0x00007f654bf725cb in QWaitConditionPrivate::wait (deadline=..., this=0x7f64a0073c40) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x5628356a99f8, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f654dbdc217 in QSGThreadedRenderLoop::polishAndSync (this=this@entry=0x562830a6b800, w=w@entry=0x56283325ca90, inExpose=inExpose@entry=true) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  0x00007f654dbdd108 in QSGThreadedRenderLoop::handleExposure (this=0x562830a6b800, window=<optimized out>) at scenegraph/qsgthreadedrenderloop.cpp:1375
#7  0x00007f654dbddb1b in QSGThreadedRenderLoop::exposureChanged (this=0x562830a6b800, window=0x562833399e50) at scenegraph/qsgthreadedrenderloop.cpp:1269
#8  0x00007f654c541e0d in QWindow::event (this=this@entry=0x562833399e50, ev=ev@entry=0x7ffe7dd4e470) at kernel/qwindow.cpp:2438
#9  0x00007f654dc47fdb in QQuickWindow::event (this=0x562833399e50, e=0x7ffe7dd4e470) at items/qquickwindow.cpp:1901
#10 0x00007f654ce64dc3 in QApplicationPrivate::notify_helper (this=this@entry=0x562830131510, receiver=receiver@entry=0x562833399e50, e=e@entry=0x7ffe7dd4e470) at kernel/qapplication.cpp:3632
#11 0x00007f654ce6dbb8 in QApplication::notify (this=0x7ffe7dd4e870, receiver=0x562833399e50, e=0x7ffe7dd4e470) at kernel/qapplication.cpp:3156
#12 0x00007f654c152daa in QCoreApplication::notifyInternal2 (receiver=0x562833399e50, event=0x7ffe7dd4e470) at ../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#13 0x00007f654c537813 in QGuiApplicationPrivate::processExposeEvent (e=0x7f6540022260) at kernel/qguiapplication.cpp:3258
#14 0x00007f654c537a4b in QGuiApplicationPrivate::processWindowSystemEvent (e=0x7f6540022260) at kernel/qguiapplication.cpp:2070
#15 0x00007f654c50f7ac in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1169
#16 0x00007f65473eceae in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#17 0x00007f654a48617d in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f654a486400 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f654a4864a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f654c1ad602 in QEventDispatcherGlib::processEvents (this=0x5628302cc8e0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#21 0x00007f654c1518ab in QEventLoop::exec (this=this@entry=0x7ffe7dd4e750, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#22 0x00007f654c159a64 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#23 0x000056282ee99cf5 in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:238
[Inferior 1 (process 2667) detached]

Possible duplicates by query: bug 446587, bug 446332, bug 446265, bug 446211, bug 445407.

Reported using DrKonqi