Bug 405251

Application: plasma-discover (5.13.5)

Qt Version: 5.11.1
Frameworks Version: 5.50.0
Operating System: Linux 4.18.0-16-generic x86_64
Distribution: Ubuntu 18.10

-- Information about the crash:
Discover reported pending updates, then crashed during installing updates. Restarted Discover and same crash 3 times in a row

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 0x7f2118486c80 (LWP 13323))]

Thread 11 (Thread 0x7f20f8d1b700 (LWP 13333)):
#0  0x00007f211b8a9509 in g_mutex_lock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f211b86282c in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f211b862df0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f211b862f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f211e02615b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f211dfd316b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f211de220b6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f211de2bc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f211cbb5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f211db0ddef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f20f970a700 (LWP 13332)):
#0  0x00007f211db016d9 in __GI___poll (fds=0x557a59ca89d0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f211b862e46 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f211b8631d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f21014ae7b6 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f211b88b135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f211cbb5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f211db0ddef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f20f9f0b700 (LWP 13331)):
#0  0x00007f211b8a9524 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f211b862e3b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f211b862f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f211b862fb1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f211b88b135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f211cbb5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f211db0ddef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f20faffd700 (LWP 13330)):
#0  0x00007f211cbbb846 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f20faffcc50, expected=0, futex_word=0x7f20ec005f30) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f211cbbb846 in __pthread_cond_wait_common (abstime=0x7f20faffcd10, mutex=0x7f20ec005ee0, cond=0x7f20ec005f08) at pthread_cond_wait.c:533
#2  0x00007f211cbbb846 in __pthread_cond_timedwait (cond=0x7f20ec005f08, mutex=0x7f20ec005ee0, abstime=0x7f20faffcd10) at pthread_cond_wait.c:667
#3  0x00007f211de2c31c in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f211de24182 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f211de2bc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f211cbb5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007f211db0ddef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f20fb7fe700 (LWP 13329)):
#0  0x00007f211e02496f in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f211e025ede in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f211b862379 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f211b862d7b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f211b862f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f211e02615b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f211dfd316b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f211de220b6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f211de2bc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f211cbb5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007f211db0ddef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f20fbfff700 (LWP 13328)):
#0  0x00007f211db016d9 in __GI___poll (fds=0x7f20f4004e10, nfds=1, timeout=9877) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f211b862e46 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f211b862f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f211e02615b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f211dfd316b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f211de220b6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f211de2bc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f211cbb5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007f211db0ddef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f210d2d4700 (LWP 13327)):
#0  0x00007f211b8a9509 in g_mutex_lock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f211b862d50 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f211b862f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f211e02615b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f211dfd316b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f211de220b6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f211f86f396 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f211de2bc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f211cbb5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f211db0ddef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f210f5ef700 (LWP 13326)):
#0  0x00007f211e026590 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f211b862821 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f211b862df0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f211b862f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f211e02615b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f211dfd316b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f211de220b6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f211e6141f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f211de2bc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f211cbb5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007f211db0ddef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f2114d40700 (LWP 13325)):
#0  0x00007f211db1c9e2 in __GI___clock_gettime (clock_id=1, tp=0x7f2114d3fab0) at ../sysdeps/unix/clock_gettime.c:115
#1  0x00007f211e025a81 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f211e0242b9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f211e0248b5 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f211e025ede in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f211b862379 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f211b862d7b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f211b862f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f211e02615b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f211dfd316b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f211de220b6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f211f33f545 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#12 0x00007f211de2bc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f211cbb5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#14 0x00007f211db0ddef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f21169f7700 (LWP 13324)):
#0  0x00007f211db016d9 in __GI___poll (fds=0x7f21169f6cb8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f211b7f7917 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f211b7f953a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f2117db2159 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f211de2bc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f211cbb5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f211db0ddef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f2118486c80 (LWP 13323)):
[KCrash Handler]
#6  0x00007f211da34077 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#7  0x00007f211da15535 in __GI_abort () at abort.c:79
#8  0x00007f211ddea8d7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f211f8d3eed in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f211f8d4f69 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f211f8d5675 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f211e880b05 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007f211f94f87b in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f211ee2e4a1 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f211ee35ae0 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f211dfd4499 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f211e8757e3 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007f211e8764bd in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007f211e850b6b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007f2117e43e5b in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#21 0x00007f211dfd316b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f211dfdb2e2 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x0000557a5852dae3 in  ()
#24 0x00007f211da1709b in __libc_start_main (main=0x557a5852d510, argc=1, argv=0x7fff205a17e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff205a17d8) at ../csu/libc-start.c:308
#25 0x0000557a5852e08a in _start ()
[Inferior 1 (process 13323) detached]

Reported using DrKonqi