Bug 415820

Summary: Plasma crash after resuming from a suspend and starting to enter a password for user login
Product: [Plasma] plasmashell Reporter: Anton K <KVAnton.WEB>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DOWNSTREAM    
Severity: crash CC: plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.17.4   
Target Milestone: 1.0   
Platform: unspecified   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Anton K 2020-01-02 20:49:29 UTC 
Application: plasmashell (5.17.4)

Qt Version: 5.13.2
Frameworks Version: 5.65.0
Operating System: Linux 5.3.13-050313-generic x86_64
Distribution: KDE neon User Edition 5.17

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

Plasma crash after resuming from a suspend and starting to enter a password for user login.
At first, the input field hung (keyboard and mouse did not respond)
I deleted the USB bluetooth dongle (although there were no problems with it before, but somehow I wanted it that way)
mouse and input field still did not respond

I pressed the ctr+alt+2 to go to tty2, there the user was already authorized earlier. 
I switched to tty2 and started htop, in order to check the CPU/RAM load. 
But at that moment the plasma recovered and I was thrown into tty1 and the login screen. After entering, I saw a plasma crash  message

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc6a8863000 (LWP 3395))]

Thread 15 (Thread 0x7fc615937700 (LWP 17708)):
#0  0x00007fc69f5369f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55cb8b1103a4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc69f5369f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55cb8b110350, cond=0x55cb8b110378) at pthread_cond_wait.c:502
#2  0x00007fc69f5369f3 in __pthread_cond_wait (cond=0x55cb8b110378, mutex=0x55cb8b110350) at pthread_cond_wait.c:655
#3  0x00007fc6a265daeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55cb8b110350) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fc6a265daeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55cb88b7adc0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc6a265ddf9 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x55cb88b7adc8, mutex=mutex@entry=0x55cb88b7adc0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fc6a66c8ec8 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55cb88b7adb8) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007fc6a66c8ec8 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55cb88b7ad40) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007fc6a66c92fa in QSGRenderThread::run() (this=0x55cb88b7ad40) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x55cb88b7ad40) at thread/qthread_unix.cpp:360
#10 0x00007fc69f5306db in start_thread (arg=0x7fc615937700) at pthread_create.c:463
#11 0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fc61c9fd700 (LWP 17707)):
#0  0x00007fc6a1eeb0b4 in __GI___libc_read (fd=92, buf=0x7fc61c9fcbde, nbytes=10) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fc66a47a021 in pa_read () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#2  0x00007fc66ad80a2e in pa_mainloop_prepare () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fc66ad814a0 in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fc66ad81560 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fc66ad8f3c9 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fc66a4a9318 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007fc69f5306db in start_thread (arg=0x7fc61c9fd700) at pthread_create.c:463
#8  0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fc644884700 (LWP 12223)):
#0  0x00007fc69f5369f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55cb88871134) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc69f5369f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55cb888710e0, cond=0x55cb88871108) at pthread_cond_wait.c:502
#2  0x00007fc69f5369f3 in __pthread_cond_wait (cond=0x55cb88871108, mutex=0x55cb888710e0) at pthread_cond_wait.c:655
#3  0x00007fc6a265daeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55cb888710e0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fc6a265daeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55cb8f5a1d40, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc6a265ddf9 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x55cb8f5a1d48, mutex=mutex@entry=0x55cb8f5a1d40, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fc6a66c8ec8 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55cb8f5a1d38) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007fc6a66c8ec8 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55cb8f5a1cc0) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007fc6a66c92fa in QSGRenderThread::run() (this=0x55cb8f5a1cc0) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x55cb8f5a1cc0) at thread/qthread_unix.cpp:360
#10 0x00007fc69f5306db in start_thread (arg=0x7fc644884700) at pthread_create.c:463
#11 0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fc63fdff700 (LWP 4550)):
#0  0x00007fc69f5369f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55cb8968af64) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc69f5369f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55cb8968af10, cond=0x55cb8968af38) at pthread_cond_wait.c:502
#2  0x00007fc69f5369f3 in __pthread_cond_wait (cond=0x55cb8968af38, mutex=0x55cb8968af10) at pthread_cond_wait.c:655
#3  0x00007fc6a265daeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55cb8968af10) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fc6a265daeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55cb8f601fe0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc6a265ddf9 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x55cb8f601fe8, mutex=mutex@entry=0x55cb8f601fe0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fc6a66c8ec8 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55cb8f601fd8) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007fc6a66c8ec8 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55cb8f601f60) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007fc6a66c92fa in QSGRenderThread::run() (this=0x55cb8f601f60) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x55cb8f601f60) at thread/qthread_unix.cpp:360
#10 0x00007fc69f5306db in start_thread (arg=0x7fc63fdff700) at pthread_create.c:463
#11 0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fc61ffff700 (LWP 4244)):
#0  0x00007fc69f5369f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55cb8c6f7a24) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc69f5369f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55cb8c6f79d0, cond=0x55cb8c6f79f8) at pthread_cond_wait.c:502
#2  0x00007fc69f5369f3 in __pthread_cond_wait (cond=0x55cb8c6f79f8, mutex=0x55cb8c6f79d0) at pthread_cond_wait.c:655
#3  0x00007fc6a265daeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55cb8c6f79d0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fc6a265daeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55cb8c78f750, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc6a265ddf9 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x55cb8c78f758, mutex=mutex@entry=0x55cb8c78f750, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fc6a66c8ec8 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55cb8c78f748) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007fc6a66c8ec8 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55cb8c78f6d0) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007fc6a66c92fa in QSGRenderThread::run() (this=0x55cb8c78f6d0) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x55cb8c78f6d0) at thread/qthread_unix.cpp:360
#10 0x00007fc69f5306db in start_thread (arg=0x7fc61ffff700) at pthread_create.c:463
#11 0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fc63e91d700 (LWP 3860)):
#0  0x00007fc69f5369f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55cb8b6f6e90) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc69f5369f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55cb8b6f6e40, cond=0x55cb8b6f6e68) at pthread_cond_wait.c:502
#2  0x00007fc69f5369f3 in __pthread_cond_wait (cond=0x55cb8b6f6e68, mutex=0x55cb8b6f6e40) at pthread_cond_wait.c:655
#3  0x00007fc6a265daeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55cb8b6f6e40) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fc6a265daeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55cb8b281c50, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc6a265ddf9 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x55cb8b281c58, mutex=mutex@entry=0x55cb8b281c50, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fc6a66c8ec8 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55cb8b281c48) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007fc6a66c8ec8 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55cb8b281bd0) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007fc6a66c92fa in QSGRenderThread::run() (this=0x55cb8b281bd0) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x55cb8b281bd0) at thread/qthread_unix.cpp:360
#10 0x00007fc69f5306db in start_thread (arg=0x7fc63e91d700) at pthread_create.c:463
#11 0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fc63f11e700 (LWP 3858)):
[KCrash Handler]
#6  0x00007fc67f226756 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.430.64
#7  0x00007fc67ee7fd0c in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.430.64
#8  0x00007fc67ee8070c in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.430.64
#9  0x00007fc67f11c8ca in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.430.64
#10 0x00007fc688da4ccf in glXReleaseTexImageEXT () at /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#11 0x00007fc67de9940f in Plasma::DiscardGlxPixmapRunnable::run() (this=0x7fc62c104670) at ./src/declarativeimports/core/windowthumbnail.cpp:78
#12 0x00007fc6a66c9e75 in QSGRenderThread::event(QEvent*) (this=0x55cb8b28f960, e=0x7fc62c1884a0) at scenegraph/qsgthreadedrenderloop.cpp:457
#13 0x00007fc6a66c90fc in QSGRenderThread::processEvents() (this=this@entry=0x55cb8b28f960) at scenegraph/qsgthreadedrenderloop.cpp:699
#14 0x00007fc6a66c92c0 in QSGRenderThread::run() (this=0x55cb8b28f960) at scenegraph/qsgthreadedrenderloop.cpp:733
#15 0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x55cb8b28f960) at thread/qthread_unix.cpp:360
#16 0x00007fc69f5306db in start_thread (arg=0x7fc63f11e700) at pthread_create.c:463
#17 0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fc647bee700 (LWP 3816)):
#0  0x00007fc6a1eefbf9 in __GI___poll (fds=0x7fc6400039a0, nfds=1, timeout=9361) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc69c0695c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc69c0696dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc6a2899b9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fc640000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc6a283a06a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fc647bedda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007fc6a26553aa in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x55cb8ada19b0) at thread/qthread_unix.cpp:360
#7  0x00007fc69f5306db in start_thread (arg=0x7fc647bee700) at pthread_create.c:463
#8  0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fc64cf5f700 (LWP 3806)):
#0  0x00007fc6a1eefbf9 in __GI___poll (fds=0x7fc6480043f0, nfds=1, timeout=1735365) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc69c0695c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc69c0696dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc6a2899b9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fc648000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc6a283a06a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fc64cf5ed60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007fc6a26553aa in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007fc64d62a407 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x55cb8aaf65a0) at thread/qthread_unix.cpp:360
#8  0x00007fc69f5306db in start_thread (arg=0x7fc64cf5f700) at pthread_create.c:463
#9  0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fc65895b700 (LWP 3792)):
#0  0x00007fc69f53a10d in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007fc69f533098 in __GI___pthread_mutex_lock (mutex=0x7fc67fff0fc0) at ../nptl/pthread_mutex_lock.c:113
#2  0x00007fc67f1307bc in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.430.64
#3  0x00007fc688daaa78 in  () at /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#4  0x00007fc688da6f79 in glXGetFBConfigAttrib () at /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#5  0x00007fc68926c2d7 in qglx_surfaceFormatFromGLXFBConfig(QSurfaceFormat*, _XDisplay*, __GLXFBConfigRec*, int) (format=format@entry=0x7fc6541e5100, display=0x55cb88375180, config=config@entry=0x55cb887a6470, flags=flags@entry=0) at qglxconvenience.cpp:317
#6  0x00007fc68926a3d7 in QGLXContext::init(QXcbScreen*, QPlatformOpenGLContext*) (this=0x7fc6541e50d0, screen=<optimized out>, share=<optimized out>) at qglxintegration.cpp:386
#7  0x00007fc689267e07 in QXcbGlxIntegration::createPlatformOpenGLContext(QOpenGLContext*) const (this=<optimized out>, context=0x7fc68c00cde0) at qxcbglxintegration.cpp:187
#8  0x00007fc69626ab62 in QXcbIntegration::createPlatformOpenGLContext(QOpenGLContext*) const (this=<optimized out>, context=0x7fc68c00cde0) at qxcbintegration.cpp:285
#9  0x00007fc6a2e5176f in QOpenGLContext::create() (this=0x7fc68c00cde0) at kernel/qopenglcontext.cpp:611
#10 0x00007fc6a66c45ad in QSGRenderThread::sync(bool) (this=this@entry=0x55cb8a6b80c0, inExpose=<optimized out>) at scenegraph/qsgthreadedrenderloop.cpp:552
#11 0x00007fc6a66c5a24 in QSGRenderThread::syncAndRender() (this=this@entry=0x55cb8a6b80c0) at scenegraph/qsgthreadedrenderloop.cpp:610
#12 0x00007fc6a66c92b8 in QSGRenderThread::run() (this=0x55cb8a6b80c0) at scenegraph/qsgthreadedrenderloop.cpp:730
#13 0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x55cb8a6b80c0) at thread/qthread_unix.cpp:360
#14 0x00007fc69f5306db in start_thread (arg=0x7fc65895b700) at pthread_create.c:463
#15 0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fc671ce5700 (LWP 3682)):
#0  0x00007fc6a1eefbf9 in __GI___poll (fds=0x7fc66c0066d0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc69c0695c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc69c0696dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc6a2899b9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fc66c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc6a283a06a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fc671ce4d30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007fc6a26553aa in QThread::exec() (this=this@entry=0x55cb89052ec0) at thread/qthread.cpp:531
#6  0x00007fc6a6642ac6 in QQuickPixmapReader::run() (this=0x55cb89052ec0) at util/qquickpixmapcache.cpp:962
#7  0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x55cb89052ec0) at thread/qthread_unix.cpp:360
#8  0x00007fc69f5306db in start_thread (arg=0x7fc671ce5700) at pthread_create.c:463
#9  0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fc68b5ae700 (LWP 3521)):
#0  0x00007fc6a1f0b762 in __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:96
#1  0x00007fc6a1eefc0d in __GI___poll (fds=0x7fc680004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007fc69c0695c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc69c0696dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc6a2899b9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fc680000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fc6a283a06a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fc68b5add80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007fc6a26553aa in QThread::exec() (this=this@entry=0x55cb884f8e50) at thread/qthread.cpp:531
#7  0x00007fc6a6170815 in QQmlThreadPrivate::run() (this=0x55cb884f8e50) at qml/ftw/qqmlthread.cpp:152
#8  0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x55cb884f8e50) at thread/qthread_unix.cpp:360
#9  0x00007fc69f5306db in start_thread (arg=0x7fc68b5ae700) at pthread_create.c:463
#10 0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fc6916d1700 (LWP 3410)):
#0  0x00007fc69c0af664 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc69c068ac0 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc69c0694fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc69c0696dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc6a2899b9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fc684000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fc6a283a06a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fc6916d0d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007fc6a26553aa in QThread::exec() (this=this@entry=0x7fc6a3be7d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:531
#7  0x00007fc6a39700e5 in QDBusConnectionManager::run() (this=0x7fc6a3be7d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x7fc6a3be7d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:360
#9  0x00007fc69f5306db in start_thread (arg=0x7fc6916d1700) at pthread_create.c:463
#10 0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fc6938bb700 (LWP 3405)):
#0  0x00007fc6a1eefbf9 in __GI___poll (fds=0x7fc6938baca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc6a72a1747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fc6a72a336a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fc69628ce10 in QXcbEventQueue::run() (this=0x55cb88368200) at qxcbeventqueue.cpp:228
#4  0x00007fc6a2656b52 in QThreadPrivate::start(void*) (arg=0x55cb88368200) at thread/qthread_unix.cpp:360
#5  0x00007fc69f5306db in start_thread (arg=0x7fc6938bb700) at pthread_create.c:463
#6  0x00007fc6a1efc88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fc6a8863000 (LWP 3395)):
#0  0x00007fc69f5369f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55cb8a6fa6c4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc69f5369f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55cb8a6fa670, cond=0x55cb8a6fa698) at pthread_cond_wait.c:502
#2  0x00007fc69f5369f3 in __pthread_cond_wait (cond=0x55cb8a6fa698, mutex=0x55cb8a6fa670) at pthread_cond_wait.c:655
#3  0x00007fc6a265daeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55cb8a6fa670) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fc6a265daeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55cb8a6b8100, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc6a265ddf9 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x55cb8a6b8108, mutex=0x55cb8a6b8100, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fc6a66c60ed in QSGThreadedRenderLoop::polishAndSync(QSGThreadedRenderLoop::Window*, bool) (this=this@entry=0x55cb887a6920, w=<optimized out>, inExpose=inExpose@entry=false) at scenegraph/qsgthreadedrenderloop.cpp:1217
#7  0x00007fc6a66c6c2a in QSGThreadedRenderLoop::handleUpdateRequest(QQuickWindow*) (this=0x55cb887a6920, window=0x55cb883df4a0) at scenegraph/qsgthreadedrenderloop.cpp:1042
#8  0x00007fc6a6728be4 in QQuickWindow::event(QEvent*) (this=0x55cb883df4a0, e=0x7ffc1eb4b830) at items/qquickwindow.cpp:1676
#9  0x00007fc6a41f1eac in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55cb88365900, receiver=receiver@entry=0x55cb883df4a0, e=e@entry=0x7ffc1eb4b830) at kernel/qapplication.cpp:3703
#10 0x00007fc6a41f94b0 in QApplication::notify(QObject*, QEvent*) (this=0x7ffc1eb4be80, receiver=0x55cb883df4a0, e=0x7ffc1eb4b830) at kernel/qapplication.cpp:3449
#11 0x00007fc6a283bf08 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55cb883df4a0, event=0x7ffc1eb4b830) at kernel/qcoreapplication.cpp:1095
#12 0x00007fc6a2e00f83 in QPlatformWindow::deliverUpdateRequest() (this=<optimized out>) at kernel/qplatformwindow.cpp:793
#13 0x00007fc6a2e00f83 in QPlatformWindow::windowEvent(QEvent*) (this=<optimized out>, event=<optimized out>) at kernel/qplatformwindow.cpp:478
#14 0x00007fc6a41f94cb in QApplication::notify(QObject*, QEvent*) (this=0x7ffc1eb4be80, receiver=0x55cb883df4a0, e=0x7ffc1eb4bae0) at kernel/qapplication.cpp:2909
#15 0x00007fc6a283bf08 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55cb883df4a0, event=0x7ffc1eb4bae0) at kernel/qcoreapplication.cpp:1095
#16 0x00007fc6a2899009 in QTimerInfoList::activateTimers() (this=0x55cb883c83e0) at kernel/qtimerinfo_unix.cpp:643
#17 0x00007fc6a2899809 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:183
#18 0x00007fc6a2899809 in idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:230
#19 0x00007fc69c069417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fc69c069650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fc69c0696dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fc6a2899b7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55cb883cdd80, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#23 0x00007fc6a283a06a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc1eb4bd30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#24 0x00007fc6a28433e0 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1403
#25 0x000055cb86659cef in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:219

The reporter indicates this bug may be a duplicate of or related to bug 415386.

Possible duplicates by query: bug 415795, bug 415787, bug 415754, bug 415701, bug 415686.

Reported using DrKonqi
Comment 1 Christoph Feck 2020-01-20 13:14:44 UTC 
Crash is in libnvidia-glcore.so.430.64

If this is reproducible, please report this issue directly to NVIDIA developers via https://devtalk.nvidia.com/default/topic/522835/linux/if-you-have-a-problem-please-read-this-first/
Comment 2 Christoph Feck 2020-02-13 23:41:33 UTC 
Forgot to change the status.