Application: plasma-discover (5.12.4)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-22-generic x86_64
Distribution: Ubuntu 18.04 LTS

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

I left my notebook on yesterday evening downloading FlightGear Flight Simulator via Discover during the night. I came back at the morning discovering that FlightGear wasn't downloaded, but 2 updates were available. I clicked on updates tab and it crashed.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa4d27def40 (LWP 5847))]

Thread 10 (Thread 0x7fa499942700 (LWP 5901)):
#0  0x00007fa4cdec60b4 in __GI___libc_read (fd=30, buf=0x7fa499941b90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fa4c87fd960 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa4c87b8f27 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa4c87b93e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa4c87b954c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa4ce81890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa4ce7bd9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa4ce5dc22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa4ce5e116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa4ca6de6db in start_thread (arg=0x7fa499942700) at pthread_create.c:463
#10 0x00007fa4cded788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fa47da5d700 (LWP 5879)):
#0  0x00007fa4cdec60b4 in __GI___libc_read (fd=62, buf=0x7fa47da5cb90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fa4c87fd960 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa4c87b8f27 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa4c87b93e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa4c87b954c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa4ce81890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa4ce7bd9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa4ce5dc22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa4ce5e116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa4ca6de6db in start_thread (arg=0x7fa47da5d700) at pthread_create.c:463
#10 0x00007fa4cded788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fa47e25e700 (LWP 5878)):
#0  0x00007fa4c87fecf4 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa4c87b8988 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa4c87b936b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa4c87b954c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa4ce81890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa4ce7bd9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa4ce5dc22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa4ce5e116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa4ca6de6db in start_thread (arg=0x7fa47e25e700) at pthread_create.c:463
#9  0x00007fa4cded788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fa48a2fc700 (LWP 5863)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fa4adebb335 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#2  0x00007fa4adebafc3 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#3  0x00007fa4a735654c in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#4  0x00007fa4a724bced in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#5  0x00007fa4a7224dff in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#6  0x00007fa4a7224e33 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#7  0x00007fa4ade6310b in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#8  0x00007fa4a722405c in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#9  0x00007fa4ade62c81 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#10 0x00007fa4ade60ee2 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#11 0x00007fa4ade950cd in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#12 0x00007fa4ade99bd9 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#13 0x00007fa4adf0d234 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#14 0x00007fa4d260fb93 in _dl_fini () at dl-fini.c:143
#15 0x00007fa4cddf9041 in __run_exit_handlers (status=1, listp=0x7fa4ce1a1718 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:108
#16 0x00007fa4cddf913a in __GI_exit (status=<optimized out>) at exit.c:139
#17 0x00007fa4cd66db05 in _XDefaultIOError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#18 0x00007fa4c2b00c97 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#19 0x00007fa4cd66dd3e in _XIOError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#20 0x00007fa4cd66bd83 in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#21 0x00007fa4adece07d in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#22 0x00007fa4ade97055 in ?? () from /usr/lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#23 0x00007fa4a72afef1 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#24 0x00007fa4a731157b in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#25 0x00007fa4a731e12d in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#26 0x00007fa4a7269ce6 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#27 0x00007fa4a6eb8b56 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#28 0x00007fa4a6f33dea in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#29 0x00007fa4a72d6e36 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#30 0x00007fa4a6eabb39 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#31 0x00007fa4a6eaf6ed in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.390.48
#32 0x00007fa4cf938990 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#33 0x00007fa4cf93a0e2 in QOpenGLFramebufferObject::QOpenGLFramebufferObject(QSize const&, QOpenGLFramebufferObjectFormat const&) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#34 0x00007fa4d1a3333d in QSGDefaultLayer::grab() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#35 0x00007fa4d1a33505 in QSGDefaultLayer::updateTexture() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#36 0x00007fa4d1b964a6 in QQuickOpenGLShaderEffectMaterial::updateTextures() const () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#37 0x00007fa4d19f2917 in QSGRenderer::preprocess() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#38 0x00007fa4d19f2267 in QSGRenderer::renderScene(QSGBindable const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#39 0x00007fa4d19f275b in QSGRenderer::renderScene(unsigned int) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#40 0x00007fa4d1a2c990 in QSGDefaultRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#41 0x00007fa4d1a8aa08 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#42 0x00007fa4d1a35a5c in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#43 0x00007fa4d1a3a968 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#44 0x00007fa4ce5e116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#45 0x00007fa4ca6de6db in start_thread (arg=0x7fa48a2fc700) at pthread_create.c:463
#46 0x00007fa4cded788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fa49af60700 (LWP 5854)):
#0  0x00007fa4cdec60b4 in __GI___libc_read (fd=26, buf=0x7fa49af5fb90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fa4c87fd960 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa4c87b8f27 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa4c87b93e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa4c87b954c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa4ce81890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa4ce7bd9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa4ce5dc22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa4ce5e116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa4ca6de6db in start_thread (arg=0x7fa49af60700) at pthread_create.c:463
#10 0x00007fa4cded788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fa49c4e1700 (LWP 5853)):
#0  0x00007fa4cdecabf9 in __GI___poll (fds=0x7fa494004e10, nfds=1, timeout=2292) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa4c87b9439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa4c87b954c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa4ce81890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa4ce7bd9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa4ce5dc22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa4ce5e116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa4ca6de6db in start_thread (arg=0x7fa49c4e1700) at pthread_create.c:463
#8  0x00007fa4cded788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fa4a61ff700 (LWP 5852)):
#0  0x00007fa4cdecabf9 in __GI___poll (fds=0x7fa4a0004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa4c87b9439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa4c87b954c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa4ce81890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa4ce7bd9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa4ce5dc22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa4d19bb2a6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa4ce5e116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa4ca6de6db in start_thread (arg=0x7fa4a61ff700) at pthread_create.c:463
#9  0x00007fa4cded788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fa4b57bc700 (LWP 5850)):
#0  0x00007fa4c87b82c7 in g_main_context_acquire () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa4c87b92f5 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa4c87b954c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa4ce81890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa4ce7bd9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa4ce5dc22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa4cf1f26f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fa4ce5e116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa4ca6de6db in start_thread (arg=0x7fa4b57bc700) at pthread_create.c:463
#9  0x00007fa4cded788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fa4bfd56700 (LWP 5848)):
#0  0x00007fa4cdecabf9 in __GI___poll (fds=0x7fa4bfd55ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa4c8550747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fa4c855236a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fa4c2b032a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fa4ce5e116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa4ca6de6db in start_thread (arg=0x7fa4bfd56700) at pthread_create.c:463
#6  0x00007fa4cded788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fa4d27def40 (LWP 5847)):
[KCrash Handler]
#6  0x00007fa4d1661b19 in AbstractResourcesBackend::Filters::shouldFilter(AbstractResource*) const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#7  0x00007fa4d1661ded in AbstractResourcesBackend::Filters::filterJustInCase(QVector<AbstractResource*>&) const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#8  0x00007fa4d1659422 in ResourcesProxyModel::addResources(QVector<AbstractResource*> const&) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#9  0x00007fa4ce7ee6cf in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fa4d16723d2 in ResultsStream::resourcesFound(QVector<AbstractResource*> const&) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#11 0x00007fa4d16515e0 in AggregatedResultsStream::emitResults() () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#12 0x00007fa4d1651639 in AggregatedResultsStream::clear() () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#13 0x00007fa4d16527b3 in AggregatedResultsStream::destruction(QObject*) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#14 0x00007fa4ce7ee6cf in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fa4ce7eed2f in QObject::destroyed(QObject*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fa4ce7f544a in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fa4d16616b9 in ResultsStream::~ResultsStream() () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#18 0x00007fa4ce7ef140 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007fa4cfdcc82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007fa4cfdd40f4 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007fa4ce7bf9a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fa4ce7c211d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fa4ce8192c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fa4c87b9287 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fa4c87b94c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fa4c87b954c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007fa4ce8188ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007fa4ce7bd9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007fa4ce7c6a84 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x000055d578a2cf58 in ?? ()
#31 0x00007fa4cddd7b97 in __libc_start_main (main=0x55d578a2c680, argc=1, argv=0x7ffe4d14e9d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe4d14e9c8) at ../csu/libc-start.c:310
#32 0x000055d578a2d13a in _start ()

Possible duplicates by query: bug 394370, bug 394268, bug 393979, bug 393874, bug 392971.

Reported using DrKonqi