Bug 397729

Summary: Crash while using Google Chrome
Product: [Plasma] plasmashell Reporter: Patrizio Bekerle <patrizio>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: kde, notmart, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.13.3   
Target Milestone: 1.0   
Platform: unspecified   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Patrizio Bekerle 2018-08-22 06:22:02 UTC 
Application: plasmashell (5.13.4)

Qt Version: 5.11.1
Frameworks Version: 5.49.0
Operating System: Linux 4.4.0-133-generic x86_64
Distribution: KDE neon User Edition 5.13

-- Information about the crash:
- What I was doing when the application crashed:

Using Google Chrome on KDE Neon
Sidenote: I'm using xrandr to adapt screen DPIs (I have two 27" displays with different DPI)

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7f9a62660940 (LWP 3093))]

Thread 18 (Thread 0x7f991f19b700 (LWP 12009)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9a5bf0b5cb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x8cab4a0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x8f551d8, mutex=mutex@entry=0x8f551d0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f9a5ff4a5ad in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x8f551c8) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x8f55150) at scenegraph/qsgthreadedrenderloop.cpp:709
#5  0x00007f9a5ff4aa31 in QSGRenderThread::run (this=0x8f55150) at scenegraph/qsgthreadedrenderloop.cpp:738
#6  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x8f55150) at thread/qthread_unix.cpp:367
#7  0x00007f9a5adae6ba in start_thread (arg=0x7f991f19b700) at pthread_create.c:333
#8  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f9941fec700 (LWP 5535)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9a5bf0b5cb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x7d893f0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x8a2fd18, mutex=mutex@entry=0x8a2fd10, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f9a5ff4a5ad in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x8a2fd08) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x8a2fc90) at scenegraph/qsgthreadedrenderloop.cpp:709
#5  0x00007f9a5ff4aa31 in QSGRenderThread::run (this=0x8a2fc90) at scenegraph/qsgthreadedrenderloop.cpp:738
#6  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x8a2fc90) at thread/qthread_unix.cpp:367
#7  0x00007f9a5adae6ba in start_thread (arg=0x7f9941fec700) at pthread_create.c:333
#8  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f99429ed700 (LWP 5528)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9a5bf0b5cb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x8450cf0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x8450f48, mutex=mutex@entry=0x8450f40, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f9a5ff4a5ad in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x8450f38) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x8450ec0) at scenegraph/qsgthreadedrenderloop.cpp:709
#5  0x00007f9a5ff4aa31 in QSGRenderThread::run (this=0x8450ec0) at scenegraph/qsgthreadedrenderloop.cpp:738
#6  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x8450ec0) at thread/qthread_unix.cpp:367
#7  0x00007f9a5adae6ba in start_thread (arg=0x7f99429ed700) at pthread_create.c:333
#8  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f99435ee700 (LWP 5360)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9a5bf0b5cb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x6b5eca0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x6b60be8, mutex=mutex@entry=0x6b60be0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f9a5ff4a5ad in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x6b60bd8) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x6b60b60) at scenegraph/qsgthreadedrenderloop.cpp:709
#5  0x00007f9a5ff4aa31 in QSGRenderThread::run (this=0x6b60b60) at scenegraph/qsgthreadedrenderloop.cpp:738
#6  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x6b60b60) at thread/qthread_unix.cpp:367
#7  0x00007f9a5adae6ba in start_thread (arg=0x7f99435ee700) at pthread_create.c:333
#8  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f99517bf700 (LWP 5266)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9a5bf0b5cb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5d9f070) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x4ebc5f8, mutex=mutex@entry=0x4ebc5f0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f9a5ff4a5ad in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x4ebc5e8) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x4ebc570) at scenegraph/qsgthreadedrenderloop.cpp:709
#5  0x00007f9a5ff4aa31 in QSGRenderThread::run (this=0x4ebc570) at scenegraph/qsgthreadedrenderloop.cpp:738
#6  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x4ebc570) at thread/qthread_unix.cpp:367
#7  0x00007f9a5adae6ba in start_thread (arg=0x7f99517bf700) at pthread_create.c:333
#8  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f9959e1c700 (LWP 5262)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9a5bf0b5cb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x619efe0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x6283f68, mutex=mutex@entry=0x6283f60, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f9a5ff4a5ad in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x6283f58) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x6283ee0) at scenegraph/qsgthreadedrenderloop.cpp:709
#5  0x00007f9a5ff4aa31 in QSGRenderThread::run (this=0x6283ee0) at scenegraph/qsgthreadedrenderloop.cpp:738
#6  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x6283ee0) at thread/qthread_unix.cpp:367
#7  0x00007f9a5adae6ba in start_thread (arg=0x7f9959e1c700) at pthread_create.c:333
#8  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f995ae1d700 (LWP 5261)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9a5bf0b5cb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x618b560) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x6146688, mutex=mutex@entry=0x6146680, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f9a5ff4a5ad in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x6146678) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x6146600) at scenegraph/qsgthreadedrenderloop.cpp:709
#5  0x00007f9a5ff4aa31 in QSGRenderThread::run (this=0x6146600) at scenegraph/qsgthreadedrenderloop.cpp:738
#6  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x6146600) at thread/qthread_unix.cpp:367
#7  0x00007f9a5adae6ba in start_thread (arg=0x7f995ae1d700) at pthread_create.c:333
#8  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f9960c3e700 (LWP 5260)):
[KCrash Handler]
#6  0x00007f9a529b4744 in ?? () from /usr/lib/nvidia-384/libnvidia-glcore.so.384.130
#7  0x00007f9a5ff0cab8 in QOpenGLFunctions::glVertexAttribPointer (ptr=<optimized out>, stride=0, normalized=0 '\000', type=5126, size=1, indx=<optimized out>, this=0x7f995c3dd770) at /usr/include/x86_64-linux-gnu/qt5/QtGui/qopenglfunctions.h:2191
#8  QSGBatchRenderer::Renderer::renderMergedBatch (this=0x7f995c3dd690, batch=0x7f995c3f0060) at scenegraph/coreapi/qsgbatchrenderer.cpp:2338
#9  0x00007f9a5ff0d4d5 in QSGBatchRenderer::Renderer::renderBatches (this=this@entry=0x7f995c3dd690) at scenegraph/coreapi/qsgbatchrenderer.cpp:2547
#10 0x00007f9a5ff12c37 in QSGBatchRenderer::Renderer::render (this=<optimized out>) at scenegraph/coreapi/qsgbatchrenderer.cpp:2735
#11 0x00007f9a5ff030c3 in QSGRenderer::renderScene (this=0x7f995c3dd690, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:244
#12 0x00007f9a5ff45566 in QSGDefaultLayer::grab (this=0x7f995c1451a0) at scenegraph/qsgdefaultlayer.cpp:441
#13 0x00007f9a5ff45b15 in QSGDefaultLayer::updateTexture (this=0x7f995c1451a0) at scenegraph/qsgdefaultlayer.cpp:181
#14 0x00007f9a600b1206 in QQuickOpenGLShaderEffectMaterial::updateTextures (this=0x7f995c320d00) at items/qquickopenglshadereffectnode.cpp:474
#15 0x00007f9a5ff037d0 in QSGRenderer::preprocess (this=0x7f995c3cca50) at scenegraph/coreapi/qsgrenderer.cpp:312
#16 0x00007f9a5ff03093 in QSGRenderer::renderScene (this=0x7f995c3cca50, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:221
#17 0x00007f9a5ff45566 in QSGDefaultLayer::grab (this=0x7f995c31fb10) at scenegraph/qsgdefaultlayer.cpp:441
#18 0x00007f9a5ff45b15 in QSGDefaultLayer::updateTexture (this=0x7f995c31fb10) at scenegraph/qsgdefaultlayer.cpp:181
#19 0x00007f9a600b1206 in QQuickOpenGLShaderEffectMaterial::updateTextures (this=0x7f995c31f7e0) at items/qquickopenglshadereffectnode.cpp:474
#20 0x00007f9a5ff037d0 in QSGRenderer::preprocess (this=0x7f995c13e490) at scenegraph/coreapi/qsgrenderer.cpp:312
#21 0x00007f9a5ff03093 in QSGRenderer::renderScene (this=0x7f995c13e490, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:221
#22 0x00007f9a5ff0359b in QSGRenderer::renderScene (this=<optimized out>, fboId=<optimized out>) at scenegraph/coreapi/qsgrenderer.cpp:197
#23 0x00007f9a5ff3e8de in QSGDefaultRenderContext::renderNextFrame (this=0x3908f50, renderer=0x7f995c13e490, fboId=<optimized out>) at scenegraph/qsgdefaultrendercontext.cpp:182
#24 0x00007f9a5ff9d574 in QQuickWindowPrivate::renderSceneGraph (this=this@entry=0x3906080, size=...) at items/qquickwindow.cpp:481
#25 0x00007f9a5ff47331 in QSGRenderThread::syncAndRender (this=this@entry=0x60d1540) at scenegraph/qsgthreadedrenderloop.cpp:645
#26 0x00007f9a5ff4a9ac in QSGRenderThread::run (this=0x60d1540) at scenegraph/qsgthreadedrenderloop.cpp:729
#27 0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x60d1540) at thread/qthread_unix.cpp:367
#28 0x00007f9a5adae6ba in start_thread (arg=0x7f9960c3e700) at pthread_create.c:333
#29 0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f996b31f700 (LWP 5238)):
#0  0x00007f9a5b80727d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9a53a0c073 in ?? () from /usr/lib/nvidia-384/tls/libnvidia-tls.so.384.130
#2  0x00007f9a55b926f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9a55b4ee74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9a55b4f330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9a55b4f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9a5c1230bb in QEventDispatcherGlib::processEvents (this=0x7f99640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f9a5c0ca5ba in QEventLoop::exec (this=this@entry=0x7f996b31ec30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#8  0x00007f9a5beff5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#9  0x00007f996c537e47 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#10 0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x55ed5f0) at thread/qthread_unix.cpp:367
#11 0x00007f9a5adae6ba in start_thread (arg=0x7f996b31f700) at pthread_create.c:333
#12 0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f998ca5c700 (LWP 5133)):
#0  timerSourcePrepare (source=0x7f9980002c70, timeout=0x7f998ca5ba84) at kernel/qeventdispatcher_glib.cpp:156
#1  0x00007f9a55b4e91d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9a55b4f2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9a55b4f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9a5c1230bb in QEventDispatcherGlib::processEvents (this=0x7f99800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f9a5c0ca5ba in QEventLoop::exec (this=this@entry=0x7f998ca5bc50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f9a5beff5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007f998d055255 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#8  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x32df440) at thread/qthread_unix.cpp:367
#9  0x00007f9a5adae6ba in start_thread (arg=0x7f998ca5c700) at pthread_create.c:333
#10 0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f9995ffd700 (LWP 5101)):
#0  0x00007f9a5b80b74d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9a55b4f38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9a55b4f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9a5c1230bb in QEventDispatcherGlib::processEvents (this=0x7f99880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f9a5c0ca5ba in QEventLoop::exec (this=this@entry=0x7f9995ffcc00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f9a5beff5e4 in QThread::exec (this=this@entry=0x34fdc90) at thread/qthread.cpp:525
#6  0x00007f9a5fec9f86 in QQuickPixmapReader::run (this=0x34fdc90) at util/qquickpixmapcache.cpp:934
#7  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x34fdc90) at thread/qthread_unix.cpp:367
#8  0x00007f9a5adae6ba in start_thread (arg=0x7f9995ffd700) at pthread_create.c:333
#9  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f99a1afb700 (LWP 5084)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9a5bf0b5cb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x372bf10) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x2f6afd8, mutex=mutex@entry=0x2f6afd0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f9a5ff4a5ad in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x2f6afc8) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x2f6af50) at scenegraph/qsgthreadedrenderloop.cpp:709
#5  0x00007f9a5ff4aa31 in QSGRenderThread::run (this=0x2f6af50) at scenegraph/qsgthreadedrenderloop.cpp:738
#6  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x2f6af50) at thread/qthread_unix.cpp:367
#7  0x00007f9a5adae6ba in start_thread (arg=0x7f99a1afb700) at pthread_create.c:333
#8  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f99a36fc700 (LWP 5053)):
#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f9a5adb0e42 in __GI___pthread_mutex_lock (mutex=0x7f9a572078a0) at ../nptl/pthread_mutex_lock.c:115
#2  0x00007f9a56f81f3c in ?? () from /usr/lib/nvidia-384/libGL.so.1
#3  0x00007f9a52c1174e in ?? () from /usr/lib/nvidia-384/libnvidia-glcore.so.384.130
#4  0x00007f9a529d4a2b in ?? () from /usr/lib/nvidia-384/libnvidia-glcore.so.384.130
#5  0x00007f9a529d4b63 in ?? () from /usr/lib/nvidia-384/libnvidia-glcore.so.384.130
#6  0x00007f9a529d4c3b in ?? () from /usr/lib/nvidia-384/libnvidia-glcore.so.384.130
#7  0x00007f9a529d4c89 in ?? () from /usr/lib/nvidia-384/libnvidia-glcore.so.384.130
#8  0x00007f9a52af9df8 in ?? () from /usr/lib/nvidia-384/libnvidia-glcore.so.384.130
#9  0x00007f9a529cf469 in ?? () from /usr/lib/nvidia-384/libnvidia-glcore.so.384.130
#10 0x00007f99ac1f2ddb in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kquickcontrolsaddons/libkquickcontrolsaddonsplugin.so
#11 0x00007f9a5c0f92a6 in QtPrivate::QSlotObjectBase::call (a=0x7f99a36fbad0, r=0x3c73060, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#12 QMetaObject::activate (sender=sender@entry=0x2910100, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3754
#13 0x00007f9a5c0f9887 in QMetaObject::activate (sender=sender@entry=0x2910100, m=m@entry=0x7f9a60403b60 <QQuickWindow::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3633
#14 0x00007f9a5ff98173 in QQuickWindow::beforeRendering (this=this@entry=0x2910100) at .moc/moc_qquickwindow.cpp:506
#15 0x00007f9a5ff9d460 in QQuickWindowPrivate::renderSceneGraph (this=this@entry=0x2dace30, size=...) at items/qquickwindow.cpp:456
#16 0x00007f9a5ff47331 in QSGRenderThread::syncAndRender (this=this@entry=0x35e1ad0) at scenegraph/qsgthreadedrenderloop.cpp:645
#17 0x00007f9a5ff4a9ac in QSGRenderThread::run (this=0x35e1ad0) at scenegraph/qsgthreadedrenderloop.cpp:729
#18 0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x35e1ad0) at thread/qthread_unix.cpp:367
#19 0x00007f9a5adae6ba in start_thread (arg=0x7f99a36fc700) at pthread_create.c:333
#20 0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f99aa106700 (LWP 5023)):
#0  0x00007f9a55b93a94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9a55b4f4a6 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9a5c1230bb in QEventDispatcherGlib::processEvents (this=0x7f99a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#3  0x00007f9a5c0ca5ba in QEventLoop::exec (this=this@entry=0x7f99aa105c70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#4  0x00007f9a5beff5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#5  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x32a2350) at thread/qthread_unix.cpp:367
#6  0x00007f9a5adae6ba in start_thread (arg=0x7f99aa106700) at pthread_create.c:333
#7  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f9a3b779700 (LWP 4972)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9a61de6de4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f9a61de6e29 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f9a5adae6ba in start_thread (arg=0x7f9a3b779700) at pthread_create.c:333
#4  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f9a42be9700 (LWP 3585)):
#0  0x00007f9a55b4e8fb in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9a55b4f2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9a55b4f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9a5c1230bb in QEventDispatcherGlib::processEvents (this=0x7f9a340008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f9a5c0ca5ba in QEventLoop::exec (this=this@entry=0x7f9a42be8c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f9a5beff5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007f9a5fa40195 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x2783e50) at thread/qthread_unix.cpp:367
#8  0x00007f9a5adae6ba in start_thread (arg=0x7f9a42be9700) at pthread_create.c:333
#9  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f9a43fff700 (LWP 3299)):
#0  0x00007f9a55b93a94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9a55b4f381 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9a55b4f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9a5c1230bb in QEventDispatcherGlib::processEvents (this=0x7f9a3c0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f9a5c0ca5ba in QEventLoop::exec (this=this@entry=0x7f9a43ffec40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f9a5beff5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007f9a5e470f35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f9a5bf0a727 in QThreadPrivate::start (arg=0x7f9a5e6e9d60) at thread/qthread_unix.cpp:367
#8  0x00007f9a5adae6ba in start_thread (arg=0x7f9a43fff700) at pthread_create.c:333
#9  0x00007f9a5b81741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f9a62660940 (LWP 3093)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9a5bf0b5cb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x4a48bf0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x60d1580, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f9a5ff47f01 in QSGThreadedRenderLoop::polishAndSync (this=this@entry=0x290fc30, w=<optimized out>, inExpose=inExpose@entry=false) at scenegraph/qsgthreadedrenderloop.cpp:1210
#4  0x00007f9a5ff4879a in QSGThreadedRenderLoop::handleUpdateRequest (this=0x290fc30, window=0x38ff1c0) at scenegraph/qsgthreadedrenderloop.cpp:1035
#5  0x00007f9a5ffa8a67 in QQuickWindow::event (this=this@entry=0x38ff1c0, e=e@entry=0x7ffc12eea080) at items/qquickwindow.cpp:1615
#6  0x000000000042ff3b in PanelView::event (this=0x38ff1c0, e=0x7ffc12eea080) at /workspace/build/shell/panelview.cpp:925
#7  0x00007f9a5d76c39c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007f9a5d773ab0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007f9a5c0cc228 in QCoreApplication::notifyInternal2 (receiver=0x38ff1c0, event=0x7ffc12eea080) at kernel/qcoreapplication.cpp:1048
#10 0x00007f9a5c69a82e in QWindowPrivate::deliverUpdateRequest() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#11 0x00007f9a5c69ad69 in QWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#12 0x00007f9a5ffa8a15 in QQuickWindow::event (this=this@entry=0x38ff1c0, e=e@entry=0x7ffc12eea450) at items/qquickwindow.cpp:1634
#13 0x000000000042ff3b in PanelView::event (this=0x38ff1c0, e=0x7ffc12eea450) at /workspace/build/shell/panelview.cpp:925
#14 0x00007f9a5d76c39c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f9a5d773ab0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f9a5c0cc228 in QCoreApplication::notifyInternal2 (receiver=0x38ff1c0, event=event@entry=0x7ffc12eea450) at kernel/qcoreapplication.cpp:1048
#17 0x00007f9a5c12247e in QCoreApplication::sendEvent (event=0x7ffc12eea450, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#18 QTimerInfoList::activateTimers (this=0x25fbf40) at kernel/qtimerinfo_unix.cpp:643
#19 0x00007f9a5c122d01 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:182
#20 0x00007f9a55b4f197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f9a55b4f3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f9a55b4f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f9a5c12309f in QEventDispatcherGlib::processEvents (this=0x268f640, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#24 0x00007f9a4d1599a1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#25 0x00007f9a5c0ca5ba in QEventLoop::exec (this=this@entry=0x7ffc12eea6c0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#26 0x00007f9a5c0d36c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#27 0x000000000041da25 in main (argc=1, argv=<optimized out>) at /workspace/build/shell/main.cpp:212

Possible duplicates by query: bug 396104.

Reported using DrKonqi
Comment 1 Kai Uwe Broulik 2018-08-22 06:45:06 UTC 
Looks like it's crashing in the nvidia driver, though
Comment 2 Patrizio Bekerle 2018-08-22 06:46:16 UTC 
I also almost had that impression. :/
Comment 3 Marco Martin 2018-08-28 09:35:52 UTC 

*** This bug has been marked as a duplicate of bug 396104 ***