Application: plasmashell (5.12.6)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-29-generic x86_64
Distribution: Ubuntu 18.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I just log in into KDE, and plasma immediately crashed and restarted.

-- 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 0x7fb609cd1800 (LWP 2617))]

Thread 15 (Thread 0x7fb54251f700 (LWP 3808)):
#0  0x00007fb60329d839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fb5dcfc6445 in  () at /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#2  0x00007fb5dcfc60d3 in  () at /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#3  0x00007fb55334dffd in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77
#4  0x00007fb5532fb6bc in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77
#5  0x00007fb55321c6de in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77
#6  0x00007fb5dcfc4db1 in  () at /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#7  0x00007fb5f288e8f2 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#8  0x00007fb60441100a in QOpenGLContext::swapBuffers(QSurface*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#9  0x00007fb60772eaa3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fb607733968 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fb602b296db in start_thread (arg=0x7fb54251f700) at pthread_create.c:463
#13 0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fb543fff700 (LWP 3349)):
#0  0x00007fb602b2f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fb5e4058394) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb602b2f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb5e4058340, cond=0x7fb5e4058368) at pthread_cond_wait.c:502
#2  0x00007fb602b2f9f3 in __pthread_cond_wait (cond=0x7fb5e4058368, mutex=0x7fb5e4058340) at pthread_cond_wait.c:655
#3  0x00007fb6039ae59b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fb607733548 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fb6077339aa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb602b296db in start_thread (arg=0x7fb543fff700) at pthread_create.c:463
#8  0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fb519d3e700 (LWP 3318)):
#0  0x00007fb602b2f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a5f24b6134) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb602b2f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55a5f24b60e0, cond=0x55a5f24b6108) at pthread_cond_wait.c:502
#2  0x00007fb602b2f9f3 in __pthread_cond_wait (cond=0x55a5f24b6108, mutex=0x55a5f24b60e0) at pthread_cond_wait.c:655
#3  0x00007fb6039ae59b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fb607733548 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fb6077339aa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb602b296db in start_thread (arg=0x7fb519d3e700) at pthread_create.c:463
#8  0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fb51bbff700 (LWP 3316)):
#0  0x00007fb60329d839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fb5dcfc6445 in  () at /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#2  0x00007fb5dcfc60d3 in  () at /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#3  0x00007fb55334dffd in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77
#4  0x00007fb5532fb6bc in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77
#5  0x00007fb55321c6de in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.77
#6  0x00007fb5dcfc4db1 in  () at /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#7  0x00007fb5f288e8f2 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#8  0x00007fb60441100a in QOpenGLContext::swapBuffers(QSurface*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#9  0x00007fb60772eaa3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fb607733968 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fb602b296db in start_thread (arg=0x7fb51bbff700) at pthread_create.c:463
#13 0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fb521338700 (LWP 3315)):
#0  0x00007fb602b2f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a5f277dd80) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb602b2f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55a5f277dd30, cond=0x55a5f277dd58) at pthread_cond_wait.c:502
#2  0x00007fb602b2f9f3 in __pthread_cond_wait (cond=0x55a5f277dd58, mutex=0x55a5f277dd30) at pthread_cond_wait.c:655
#3  0x00007fb6039ae59b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fb607733548 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fb6077339aa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb602b296db in start_thread (arg=0x7fb521338700) at pthread_create.c:463
#8  0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fb52a3d0700 (LWP 3240)):
#0  0x00007fb6032b2ecb in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:134
#1  0x00007fb603be4221 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fb603be2a59 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fb603be5065 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fb5fddffe51 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb5fde003e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fb5fde0054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fb603be490b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb603b899ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fb6039a822a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fb52b696747 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#11 0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fb602b296db in start_thread (arg=0x7fb52a3d0700) at pthread_create.c:463
#13 0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fb5499ce700 (LWP 2965)):
#0  0x00007fb602b2f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a5f0e92954) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb602b2f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55a5f0e92900, cond=0x55a5f0e92928) at pthread_cond_wait.c:502
#2  0x00007fb602b2f9f3 in __pthread_cond_wait (cond=0x55a5f0e92928, mutex=0x55a5f0e92900) at pthread_cond_wait.c:655
#3  0x00007fb6039ae59b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fb607733548 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fb6077339aa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb602b296db in start_thread (arg=0x7fb5499ce700) at pthread_create.c:463
#8  0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fb54a1cf700 (LWP 2899)):
#0  0x00007fb603296bf9 in __GI___poll (fds=0x7fb544005550, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb5fde00439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb5fde0054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb603be490b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fb603b899ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb6039a822a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fb6076b42a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb602b296db in start_thread (arg=0x7fb54a1cf700) at pthread_create.c:463
#9  0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fb5dda58700 (LWP 2830)):
#0  0x00007fb602b2f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fb60968afb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fb602b2f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb60968af68, cond=0x7fb60968af90) at pthread_cond_wait.c:502
#2  0x00007fb602b2f9f3 in __pthread_cond_wait (cond=0x7fb60968af90, mutex=0x7fb60968af68) at pthread_cond_wait.c:655
#3  0x00007fb6093945f4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007fb609394639 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007fb602b296db in start_thread (arg=0x7fb5dda58700) at pthread_create.c:463
#6  0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fb5def2f700 (LWP 2818)):
#0  0x00007fb603296bf9 in __GI___poll (fds=0x7fb5d4004e10, nfds=1, timeout=9500) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb5fde00439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb5fde0054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb603be490b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fb603b899ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb6039a822a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb602b296db in start_thread (arg=0x7fb5def2f700) at pthread_create.c:463
#8  0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fb5e9760700 (LWP 2790)):
#0  0x00007fb603296bf9 in __GI___poll (fds=0x7fb5d8003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb5fde00439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb5fde0054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb603be490b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fb603b899ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb6039a822a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fb606b1a6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb602b296db in start_thread (arg=0x7fb5e9760700) at pthread_create.c:463
#9  0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fb5eb7cb700 (LWP 2730)):
#0  0x00007fb5fde45cf4 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb5fddff988 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb5fde0036b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb5fde0054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb603be490b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb603b899ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fb6039a822a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb606b1a6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fb602b296db in start_thread (arg=0x7fb5eb7cb700) at pthread_create.c:463
#10 0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fb5f1323700 (LWP 2638)):
#0  0x00007fb603296bf9 in __GI___poll (fds=0x7fb5e4004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb5fde00439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb5fde0054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb603be490b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fb603b899ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb6039a822a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fb604061d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb602b296db in start_thread (arg=0x7fb5f1323700) at pthread_create.c:463
#9  0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fb5f38b0700 (LWP 2632)):
#0  0x00007fb603296bf9 in __GI___poll (fds=0x7fb5f38afca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb6082c0747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fb6082c236a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fb5f62492a9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fb6039ad16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fb602b296db in start_thread (arg=0x7fb5f38b0700) at pthread_create.c:463
#6  0x00007fb6032a388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fb609cd1800 (LWP 2617)):
[KCrash Handler]
#6  0x00007fb6076d2268 in QQuickAnimatorProxyJob::sceneGraphInitialized() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fb603bbb122 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb604b9382c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007fb604b9b0f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007fb603b8b9a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fb603b8e11d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fb603be52c3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fb5fde00287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007fb5fde004c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007fb5fde0054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007fb603be48ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fb603b899ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007fb603b92a84 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x000055a5eff0ccfa in  ()
#20 0x00007fb6031a3b97 in __libc_start_main (main=0x55a5eff0c320, argc=1, argv=0x7ffe68003bd8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe68003bc8) at ../csu/libc-start.c:310
#21 0x000055a5eff0d09a in _start ()

Possible duplicates by query: bug 390318, bug 390273, bug 389507, bug 388639, bug 386414.

Reported using DrKonqi