Application: plasma-discover (5.16.3)

Qt Version: 5.12.3
Frameworks Version: 5.60.0
Operating System: Linux 4.15.0-34-generic x86_64
Distribution: KDE neon User Edition 5.16

-- Information about the crash:
- What I was doing when the application crashed:
I clicked on the "Updates" icon in the Plasma bar.

This started happening after I was having problems with my /home directory filling.  I normally use ~10% of a 300G partition.  For some reason my partition was filling to 100%. 

I found that my .xsession-errors was the culprit.  I have gone into my /etc/X11/Xsession file and redirected .xsession-errors in my home diretctory to /dev/null.  My HD no longer fills.

Originally I thought this was due to a Firefox page.  Perhaps it is related to a KDE widget, since Updates still doesn't function correctly.

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 0x7fed9ff06e00 (LWP 23222))]

Thread 4 (Thread 0x7fed81cf1700 (LWP 23227)):
[KCrash Handler]
#6  0x00007fed9b2c8f68 in QString::operator=(QString const&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fed9bfedb89 in QV4::CompiledData::CompilationUnit::setUnitData(QV4::CompiledData::Unit const*, QV4::CompiledData::QmlUnit const*, QString const&, QString const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fed9bff0cc7 in QV4::CompiledData::CompilationUnit::loadFromDisk(QUrl const&, QDateTime const&, QString*) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fed9c1ba8dc in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fed9c1bc73f in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007fed9c1b65ad in QQmlTypeLoader::setData(QQmlDataBlob*, QQmlDataBlob::SourceCodeData const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007fed9c1b6e5a in QQmlTypeLoader::setData(QQmlDataBlob*, QString const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007fed9c1b6ffb in QQmlTypeLoader::loadThread(QQmlDataBlob*) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007fed9c1c39dc in void QQmlTypeLoader::doLoad<PlainLoader>(PlainLoader const&, QQmlDataBlob*, QQmlTypeLoader::Mode) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007fed9c1b71a6 in QQmlTypeLoader::load(QQmlDataBlob*, QQmlTypeLoader::Mode) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007fed9c1b7e19 in QQmlTypeLoader::getType(QUrl const&, QQmlTypeLoader::Mode) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007fed9c1b8846 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#18 0x00007fed9c1b8bd9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#19 0x00007fed9c1b6699 in QQmlTypeLoader::setData(QQmlDataBlob*, QQmlDataBlob::SourceCodeData const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#20 0x00007fed9c1b6e5a in QQmlTypeLoader::setData(QQmlDataBlob*, QString const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#21 0x00007fed9c1b6ffb in QQmlTypeLoader::loadThread(QQmlDataBlob*) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#22 0x00007fed9c1c39dc in void QQmlTypeLoader::doLoad<PlainLoader>(PlainLoader const&, QQmlDataBlob*, QQmlTypeLoader::Mode) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#23 0x00007fed9c1b71a6 in QQmlTypeLoader::load(QQmlDataBlob*, QQmlTypeLoader::Mode) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#24 0x00007fed9c1b7e19 in QQmlTypeLoader::getType(QUrl const&, QQmlTypeLoader::Mode) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#25 0x00007fed9c1b8846 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#26 0x00007fed9c1b8bd9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#27 0x00007fed9c1b6699 in QQmlTypeLoader::setData(QQmlDataBlob*, QQmlDataBlob::SourceCodeData const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#28 0x00007fed9c1b6e5a in QQmlTypeLoader::setData(QQmlDataBlob*, QString const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#29 0x00007fed9c1b6ffb in QQmlTypeLoader::loadThread(QQmlDataBlob*) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#30 0x00007fed9c1b716d in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#31 0x00007fed9c22a474 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#32 0x00007fed9c22ab4a in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#33 0x00007fed9ddd965c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007fed9dde0b90 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x00007fed9b41ad18 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007fed9b41d8d7 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007fed9b478793 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007fed94fea417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007fed94fea650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007fed94fea6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007fed9b477daf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#42 0x00007fed9b41903a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x00007fed9b2404ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007fed9c22a115 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#45 0x00007fed9b241c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x00007fed978cb6db in start_thread (arg=0x7fed81cf1700) at pthread_create.c:463
#47 0x00007fed9ab4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fed82f02700 (LWP 23225)):
#0  0x00007fed9ab34bf9 in __GI___poll (fds=0x7fed7c004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fed94fea5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fed94fea6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fed9b477dcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fed9b41903a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fed9b2404ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fed9c5c8015 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fed9b241c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fed978cb6db in start_thread (arg=0x7fed82f02700) at pthread_create.c:463
#9  0x00007fed9ab4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fed8ad20700 (LWP 23223)):
#0  0x00007fed9ab34bf9 in __GI___poll (fds=0x7fed8ad1fb68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fed9471f747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fed9472136a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fed8d900578 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fed9b241c72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fed978cb6db in start_thread (arg=0x7fed8ad20700) at pthread_create.c:463
#6  0x00007fed9ab4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fed9ff06e00 (LWP 23222)):
#0  0x00007fed978d19f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5597b95f16a4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fed978d19f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5597b95f1650, cond=0x5597b95f1678) at pthread_cond_wait.c:502
#2  0x00007fed978d19f3 in __pthread_cond_wait (cond=0x5597b95f1678, mutex=0x5597b95f1650) at pthread_cond_wait.c:655
#3  0x00007fed9b248dbb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fed9b2490c9 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fed9c22a7e1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007fed9c1c3985 in void QQmlTypeLoader::doLoad<PlainLoader>(PlainLoader const&, QQmlDataBlob*, QQmlTypeLoader::Mode) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fed9c1b71a6 in QQmlTypeLoader::load(QQmlDataBlob*, QQmlTypeLoader::Mode) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fed9c1b7e19 in QQmlTypeLoader::getType(QUrl const&, QQmlTypeLoader::Mode) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fed9c193a73 in QQmlComponentPrivate::loadUrl(QUrl const&, QQmlComponent::CompilationMode) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fed9c202973 in QQmlApplicationEnginePrivate::startLoad(QUrl const&, QByteArray const&, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007fed9c2029cd in QQmlApplicationEngine::load(QUrl const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00005597b8a25c1f in  ()
#13 0x00005597b8a200bb in  ()
#14 0x00007fed9aa41b97 in __libc_start_main (main=0x5597b8a1fa10, argc=1, argv=0x7ffddb382238, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffddb382228) at ../csu/libc-start.c:310
#15 0x00005597b8a2062a in _start ()

Reported using DrKonqi