Application: plasma-discover (5.16.4)
 (Compiled from sources)
Qt Version: 5.12.3
Frameworks Version: 5.61.0
Operating System: Linux 5.0.0-25-generic x86_64
Distribution: KDE neon User Edition 5.16

-- Information about the crash:
- What I was doing when the application crashed:
browsing discover software center. no heavy load on system at the time. i5 8gig ram. over 80% mem available. installed os less than 12 hrs ago

The crash can be reproduced every time.

-- 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 0x7ff85763be00 (LWP 16278))]

Thread 12 (Thread 0x7ff7f77fe700 (LWP 20479)):
#0  0x00007ff8522640b4 in __GI___libc_read (fd=26, buf=0x7ff7f77fda50, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff84c75f2d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff84c71a0b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff84c71a570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff84c71a6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff852babdcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff852b4d03a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff8529744ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff852975c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff84effc6db in start_thread (arg=0x7ff7f77fe700) at pthread_create.c:463
#10 0x00007ff85227588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7ff7c8fc7700 (LWP 17200)):
#0  0x00007ff84c760664 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff84c719b18 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff84c71a4fb in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff84c71a6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff852babdcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff852b4d03a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff8529744ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff852975c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff84effc6db in start_thread (arg=0x7ff7c8fc7700) at pthread_create.c:463
#9  0x00007ff85227588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7ff7e57fb700 (LWP 16430)):
#0  0x00007ff84c760664 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff84c719f58 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff84c71a570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff84c71a6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff84c71a721 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff84c742195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007ff84effc6db in start_thread (arg=0x7ff7e57fb700) at pthread_create.c:463
#7  0x00007ff85227588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7ff7e77fe700 (LWP 16422)):
#0  0x00007ff84f0029f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5584ac52d350) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5584ac52d300, cond=0x5584ac52d328) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5584ac52d328, mutex=0x5584ac52d300) at pthread_cond_wait.c:655
#3  0x00007ff85297cdbb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff85297d0c9 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff8560136f8 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x7ff83c0097a8) at scenegraph/qsgthreadedrenderloop.cpp:245
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x7ff83c009730) at scenegraph/qsgthreadedrenderloop.cpp:710
#7  0x00007ff856013b2a in QSGRenderThread::run (this=0x7ff83c009730) at scenegraph/qsgthreadedrenderloop.cpp:739
#8  0x00007ff852975c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff84effc6db in start_thread (arg=0x7ff7e77fe700) at pthread_create.c:463
#10 0x00007ff85227588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7ff7f4dad700 (LWP 16404)):
#0  0x00007ff8522640b4 in __GI___libc_read (fd=46, buf=0x7ff7f4daca50, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff84c75f2d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff84c71a0b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff84c71a570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff84c71a6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff852babdcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff852b4d03a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff8529744ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff852975c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff84effc6db in start_thread (arg=0x7ff7f4dad700) at pthread_create.c:463
#10 0x00007ff85227588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7ff7f7fff700 (LWP 16399)):
#0  0x00007ff8522640b4 in __GI___libc_read (fd=23, buf=0x7ff7f7ffea50, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff84c75f2d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff84c71a0b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff84c71a570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff84c71a6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff852babdcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff852b4d03a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff8529744ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff852975c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff84effc6db in start_thread (arg=0x7ff7f7fff700) at pthread_create.c:463
#10 0x00007ff85227588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7ff7fd6b0700 (LWP 16398)):
#0  __tls_get_addr () at ../sysdeps/x86_64/tls_get_addr.S:49
#1  0x00007ff852974c26 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007ff852bac491 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007ff84c719fe1 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff84c71a570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff84c71a6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007ff852babdcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff852b4d03a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff8529744ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff852975c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007ff84effc6db in start_thread (arg=0x7ff7fd6b0700) at pthread_create.c:463
#11 0x00007ff85227588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7ff829aa4700 (LWP 16299)):
#0  0x00007ff84f0029f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5584aa2f57e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5584aa2f5798, cond=0x5584aa2f57c0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5584aa2f57c0, mutex=0x5584aa2f5798) at pthread_cond_wait.c:655
#3  0x00007ff82aec90aa in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007ff82aec8dd7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ff84effc6db in start_thread (arg=0x7ff829aa4700) at pthread_create.c:463
#6  0x00007ff85227588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7ff839482700 (LWP 16298)):
#0  0x00007ff8522640b4 in __GI___libc_read (fd=9, buf=0x7ff839481a30, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff84c75f2d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff84c71a0b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff84c71a570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff84c71a6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff852babdcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff852b4d03a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff8529744ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff85395f115 in QQmlThreadPrivate::run (this=0x5584aa252d40) at qml/ftw/qqmlthread.cpp:148
#9  0x00007ff852975c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007ff84effc6db in start_thread (arg=0x7ff839482700) at pthread_create.c:463
#11 0x00007ff85227588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ff83a693700 (LWP 16297)):
#0  0x00007ff852268bf9 in __GI___poll (fds=0x7ff834017ed0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff84c71a5c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff84c71a6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff852babdcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff852b4d03a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff8529744ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff853cfd015 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007ff852975c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff84effc6db in start_thread (arg=0x7ff83a693700) at pthread_create.c:463
#9  0x00007ff85227588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ff842450700 (LWP 16296)):
#0  0x00007ff852268bf9 in __GI___poll (fds=0x7ff84244fb68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff84be4f747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff84be5136a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff845030578 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007ff852975c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff84effc6db in start_thread (arg=0x7ff842450700) at pthread_create.c:463
#6  0x00007ff85227588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ff85763be00 (LWP 16278)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007ff853789f29 in QV4::Object::get (receiver=0x7ffd73ee27c8, hasProperty=0x0, name=0x7ffd73ee27d0, this=0x7ffd73ee27c8) at jsruntime/qv4object_p.h:308
#8  QV4::Lookup::getter0Inlinegetter0Inline (l=<optimized out>, engine=<optimized out>, object=...) at jsruntime/qv4lookup.cpp:247
#9  0x00007ff853824989 in QV4::Moth::VME::interpret (frame=0x7ffd73ee29a0, engine=0x5584aa22dca0, code=0x7ff7fc01bcdc "\030\006\002") at jsruntime/qv4vme_moth.cpp:615
#10 0x00007ff853829406 in QV4::Moth::VME::exec (frame=frame@entry=0x7ffd73ee29a0, engine=engine@entry=0x5584aa22dca0) at jsruntime/qv4vme_moth.cpp:441
#11 0x00007ff8537b852b in QV4::Function::call (this=this@entry=0x5584aa68aa30, thisObject=thisObject@entry=0x7ff8388439a8, argv=argv@entry=0x7ff8388439c0, argc=<optimized out>, context=<optimized out>) at jsruntime/qv4function.cpp:68
#12 0x00007ff85392b5f7 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x5584af60e2f0, callData=callData@entry=0x7ff838843990, isUndefined=isUndefined@entry=0x7ffd73ee2baf) at qml/qqmljavascriptexpression.cpp:211
#13 0x00007ff85393141e in QQmlBinding::evaluate (this=this@entry=0x5584af60e2f0, isUndefined=isUndefined@entry=0x7ffd73ee2baf) at qml/qqmlbinding.cpp:209
#14 0x00007ff8539360d2 in QQmlNonbindingBinding::doUpdate (this=0x5584af60e2f0, watcher=..., flags=..., scope=...) at qml/qqmlbinding.cpp:245
#15 0x00007ff8539326f3 in QQmlBinding::update (this=0x5584af60e2f0, flags=...) at qml/qqmlbinding.cpp:185
#16 0x00007ff853940f00 in QQmlObjectCreator::finalize (this=0x5584aebe0520, interrupt=...) at qml/qqmlobjectcreator.cpp:1346
#17 0x00007ff8538cb032 in QQmlIncubatorPrivate::incubate (this=0x5584aeb85d90, i=...) at qml/qqmlincubator.cpp:345
#18 0x00007ff8538cb5cc in QQmlEnginePrivate::incubate (this=<optimized out>, i=..., forContext=<optimized out>) at qml/qqmlincubator.cpp:89
#19 0x00007ff8539a637e in QQmlDelegateModelPrivate::object (this=this@entry=0x5584af6a47b0, group=QQmlListCompositor::Default, index=index@entry=0, incubationMode=incubationMode@entry=QQmlIncubator::AsynchronousIfNested) at types/qqmldelegatemodel.cpp:1073
#20 0x00007ff8539a6481 in QQmlDelegateModel::object (this=<optimized out>, index=0, incubationMode=QQmlIncubator::AsynchronousIfNested) at types/qqmldelegatemodel.cpp:1114
#21 0x00007ff8561793eb in QQuickRepeaterPrivate::requestItems (this=0x5584af66f9b0) at items/qquickrepeater.cpp:407
#22 0x00007ff8561797ec in QQuickRepeater::regenerate (this=this@entry=0x5584af66f8f0) at items/qquickrepeater.cpp:401
#23 0x00007ff85617ba70 in QQuickRepeater::componentComplete (this=0x5584af66f8f0) at items/qquickrepeater.cpp:351
#24 0x00007ff853941043 in QQmlObjectCreator::finalize (this=0x5584aeabbcd0, interrupt=...) at qml/qqmlobjectcreator.cpp:1365
#25 0x00007ff8538c5a11 in QQmlComponentPrivate::complete (enginePriv=0x5584aa229290, state=0x5584ae5fdf70) at qml/qqmlcomponent.cpp:923
#26 0x00007ff8538c5b22 in QQmlComponentPrivate::completeCreate (this=0x5584ae5fded0) at qml/qqmlcomponent.cpp:959
#27 0x00007ff8538c6d14 in QQmlComponent::createObject (this=<optimized out>, args=0x7ffd73ee3480) at qml/qqmlcomponent.cpp:1311
#28 0x00007ff8538c8fe4 in QQmlComponent::qt_static_metacall (_o=_o@entry=0x5584ae214680, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=6, _a=_a@entry=0x7ffd73ee34a0) at .moc/moc_qqmlcomponent.cpp:149
#29 0x00007ff8538c9395 in QQmlComponent::qt_metacall (this=0x5584ae214680, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0x7ffd73ee34a0) at .moc/moc_qqmlcomponent.cpp:217
#30 0x00007ff853901b09 in QQmlObjectOrGadget::metacall (this=this@entry=0x7ffd73ee33d0, type=type@entry=QMetaObject::InvokeMetaMethod, index=<optimized out>, argv=argv@entry=0x7ffd73ee34a0) at qml/qqmlpropertycache.cpp:1770
#31 0x00007ff85380bc78 in QV4::QObjectMethod::callInternal (this=<optimized out>, thisObject=0x7ff8388438a8, argv=<optimized out>, argc=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:2113
#32 0x00007ff85388cc76 in QV4::FunctionObject::call (argc=2, argv=0x7ff8388438c8, thisObject=0x7ff8388438a8, this=0x7ffd73ee3538) at jsruntime/qv4functionobject_p.h:202
#33 QV4::Runtime::method_callPropertyLookup (engine=0x5584aa22dca0, base=0x7ff8388438a8, index=<optimized out>, argv=0x7ff8388438c8, argc=2) at jsruntime/qv4runtime.cpp:1425
#34 0x00007ff7e5d1c87f in ?? ()
#35 0x0000000000000000 in ?? ()

Possible duplicates by query: bug 410529, bug 410128, bug 409555.

Reported using DrKonqi