Application: plasma-discover (5.12.7)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-46-generic x86_64
Distribution: Ubuntu 18.04.2 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Appears consistently whenever I attempt to open Discover.


- Custom settings of the application:
None, but sytem settings also crashes

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fde7d7ab800 (LWP 17990))]

Thread 8 (Thread 0x7fde3ebdf700 (LWP 18001)):
#0  0x00007fde78d34bf9 in __GI___poll (fds=0x7fde3400dea0, nfds=4, timeout=121) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fde734ac539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fde734ac64c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde7968b9bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde79630a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fde7944f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde7945417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fde756076db in start_thread (arg=0x7fde3ebdf700) at pthread_create.c:463
#8  0x00007fde78d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fde3ffff700 (LWP 17999)):
#0  0x00007fde734f2064 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fde734aba88 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fde734ac46b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde734ac64c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fde7968b9bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fde79630a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde7944f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fde7945417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fde756076db in start_thread (arg=0x7fde3ffff700) at pthread_create.c:463
#9  0x00007fde78d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fde4662f700 (LWP 17996)):
#0  0x00007ffe04b93979 in  ()
#1  0x00007ffe04b93c30 in clock_gettime ()
#2  0x00007fde78d50ea6 in __GI___clock_gettime (clock_id=1, tp=0x7fde4662eb80) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007fde7968b2d1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde79689b09 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fde7968c115 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde734abf51 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fde734ac4e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fde734ac64c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fde7968b9bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fde79630a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fde7944f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fde7945417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fde756076db in start_thread (arg=0x7fde4662f700) at pthread_create.c:463
#14 0x00007fde78d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fde51b67700 (LWP 17994)):
#0  0x00007fde78d300b4 in __GI___libc_read (fd=12, buf=0x7fde51b66b20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fde734f0cd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fde734ac027 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde734ac4e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fde734ac64c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fde7968b9bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde79630a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fde7944f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fde7c8572a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007fde7945417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fde756076db in start_thread (arg=0x7fde51b67700) at pthread_create.c:463
#11 0x00007fde78d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fde60a17700 (LWP 17993)):
#0  0x00007fde78d34bf9 in __GI___poll (fds=0x7fde54004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fde734ac539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fde734ac64c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde7968b9bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde79630a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fde7944f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde7a0706f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fde7945417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fde756076db in start_thread (arg=0x7fde60a17700) at pthread_create.c:463
#9  0x00007fde78d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fde61c2f700 (LWP 17992)):
#0  0x00007fde78d34bf9 in __GI___poll (fds=0x7fde5c0191c0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fde734ac539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fde734ac64c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde7968b9bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde79630a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fde7944f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde7a855d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fde7945417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fde756076db in start_thread (arg=0x7fde61c2f700) at pthread_create.c:463
#9  0x00007fde78d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fde6b13f700 (LWP 17991)):
#0  0x00007fde78d34bf9 in __GI___poll (fds=0x7fde6b13eca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fde73243747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fde7324536a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fde6df2a2a9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fde7945417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fde756076db in start_thread (arg=0x7fde6b13f700) at pthread_create.c:463
#6  0x00007fde78d4188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fde7d7ab800 (LWP 17990)):
[KCrash Handler]
#6  0x00007fde78c5ee97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007fde78c60801 in __GI_abort () at abort.c:79
#8  0x00007fde7943efb7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fde7c8ba2a7 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fde7c8bb275 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fde7c8bbe9a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fde7b1753d5 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007fde7c9306c5 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007fde7b92c83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007fde7b934104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007fde796329e8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fde7b16a49f in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007fde7b16b0dd in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007fde7b1422eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007fde6df8d1c0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#21 0x00007fde734ac387 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fde734ac5c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fde734ac64c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fde7968b99f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007fde79630a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fde79639ac4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x000055e7cccce148 in  ()
#28 0x00007fde78c41b97 in __libc_start_main (main=0x55e7ccccd870, argc=3, argv=0x7ffe04b66438, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe04b66428) at ../csu/libc-start.c:310
#29 0x000055e7cccce3ca in _start ()

Reported using DrKonqi