Bug 421380

Application: plasma-discover (5.12.8)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-99-generic x86_64
Distribution: Ubuntu 18.04.4 LTS

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

Clicking on task bar link to apply updates.  This started happening 1-2 weeks ago. now using apt to update until resolved.

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 0x7efbff6a0800 (LWP 1683))]

Thread 10 (Thread 0x7efba7fff700 (LWP 1699)):
#0  0x00007efbfac81839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007efbfb383775 in QBasicMutex::lockInternal() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007efbf8bf2f96 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#3  0x00007efbf8bf3835 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#4  0x00007efbf8bcf8cc in QSslSocket::startClientEncryption() () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#5  0x00007efbf8bd0578 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#6  0x00007efbf8bd8379 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007efbfb599555 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf8ba2f09 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#9  0x00007efbf8ba5e78 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007efbf8bb67ed in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007efbfd83e83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007efbfd846104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007efbfb56a8d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007efbfb5c44ed in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007efbf546b417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007efbf546b650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007efbf546b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007efbfb5c38ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007efbfb56890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007efbfb38723a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007efbfb38c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007efbf759a6db in start_thread (arg=0x7efba7fff700) at pthread_create.c:463
#23 0x00007efbfac8788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7efbb5412700 (LWP 1697)):
#0  0x00007efbfac760b4 in __GI___libc_read (fd=25, buf=0x7efbb5411cd0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007efbf54b02b0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbf546b0b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbf546b570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efbf546b962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007efbd0fe0276 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007efbf5493175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007efbf759a6db in start_thread (arg=0x7efbb5412700) at pthread_create.c:463
#8  0x00007efbfac8788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7efbb5c13700 (LWP 1696)):
#0  0x00007efbfac7abf9 in __GI___poll (fds=0x565557fbe760, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007efbf546b5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbf546b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbf546b721 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efbf5493175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007efbf759a6db in start_thread (arg=0x7efbb5c13700) at pthread_create.c:463
#6  0x00007efbfac8788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7efbc5450700 (LWP 1692)):
#0  0x00007efbf75a09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7efbb8041e50) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007efbf75a09f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7efbb8041e00, cond=0x7efbb8041e28) at pthread_cond_wait.c:502
#2  0x00007efbf75a09f3 in __pthread_cond_wait (cond=0x7efbb8041e28, mutex=0x7efbb8041e00) at pthread_cond_wait.c:655
#3  0x00007efbfb38d5ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbfb385c1b in QSemaphore::acquire(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbfb599868 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf8bfadf2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007efbf8bfbd4c in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007efbfb599555 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007efbf8bf9eb2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007efbf8b5b23f in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007efbf8b5c6cc in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#12 0x00007efbfb599555 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007efbf8bcedd2 in QSslSocket::preSharedKeyAuthenticationRequired(QSslPreSharedKeyAuthenticator*) () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#14 0x00007efbf8bf2cdc in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#15 0x00007efbc5496156 in  () at /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#16 0x00007efbc54942eb in  () at /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#17 0x00007efbc549e24e in  () at /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#18 0x00007efbc549d147 in  () at /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#19 0x00007efbc54894c4 in SSL_do_handshake () at /usr/lib/x86_64-linux-gnu/libssl.so.1.1
#20 0x00007efbf8bf310d in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#21 0x00007efbf8bf3835 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#22 0x00007efbf8bcf8cc in QSslSocket::startClientEncryption() () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#23 0x00007efbf8bd0578 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#24 0x00007efbf8bd8379 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#25 0x00007efbfb599555 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007efbf8ba2f09 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#27 0x00007efbf8ba5e78 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#28 0x00007efbf8bb67ed in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#29 0x00007efbfd83e83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007efbfd846104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007efbfb56a8d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007efbfb5c44ed in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007efbf546b417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007efbf546b650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007efbf546b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007efbfb5c388f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007efbfb56890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007efbfb38723a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007efbfb38c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00007efbf759a6db in start_thread (arg=0x7efbc5450700) at pthread_create.c:463
#41 0x00007efbfac8788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7efbc6a47700 (LWP 1690)):
#0  0x00007efbfb5c1f86 in QTimerInfoList::repairTimersIfNeeded() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007efbfb5c1fe3 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007efbfb5c361e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007efbf546ab28 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efbf546b4fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007efbf546b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007efbfb5c38ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007efbfb56890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbfb38723a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007efbfb38c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007efbf759a6db in start_thread (arg=0x7efbc6a47700) at pthread_create.c:463
#11 0x00007efbfac8788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7efbd3fff700 (LWP 1687)):
#0  0x00007efbfac7abf9 in __GI___poll (fds=0x7efbcc004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007efbf546b5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbf546b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbfb5c38ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbfb56890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbfb38723a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbfe7672a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007efbfb38c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf759a6db in start_thread (arg=0x7efbd3fff700) at pthread_create.c:463
#9  0x00007efbfac8788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7efbe2ebe700 (LWP 1686)):
#0  0x00007efbfac7abf9 in __GI___poll (fds=0x7efbd4004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007efbf546b5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbf546b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbfb5c38ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbfb56890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbfb38723a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbfbf9d6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007efbfb38c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf759a6db in start_thread (arg=0x7efbe2ebe700) at pthread_create.c:463
#9  0x00007efbfac8788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7efbe40cf700 (LWP 1685)):
#0  0x00007efbfac7abf9 in __GI___poll (fds=0x7efbdc004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007efbf546b5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbf546b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbfb5c38ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbfb56890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbfb38723a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbfc778d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007efbfb38c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf759a6db in start_thread (arg=0x7efbe40cf700) at pthread_create.c:463
#9  0x00007efbfac8788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7efbed477700 (LWP 1684)):
#0  0x00007efbfac7abf9 in __GI___poll (fds=0x7efbed476ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007efbf5202747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007efbf520436a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007efbf02245e9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007efbfb38c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf759a6db in start_thread (arg=0x7efbed477700) at pthread_create.c:463
#6  0x00007efbfac8788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7efbff6a0800 (LWP 1683)):
[KCrash Handler]
#6  0x00007efbfaba4e97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007efbfaba6801 in __GI_abort () at abort.c:79
#8  0x00007efbfb376fb7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007efbfe7ca2a7 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007efbfe7cb275 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007efbfe7cbe9a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007efbfd08e3d5 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007efbfe8406c5 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007efbfd83e83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007efbfd846104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007efbfb56a8d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007efbfd08349f in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007efbfd0840dd in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007efbfd05b2eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007efbf0289260 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#21 0x00007efbf546b417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007efbf546b650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007efbf546b6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007efbfb5c388f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007efbfb56890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007efbfb5719b4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x0000565555566148 in  ()
#28 0x00007efbfab87b97 in __libc_start_main (main=0x565555565870, argc=3, argv=0x7ffbffffb768, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffbffffb758) at ../csu/libc-start.c:310
#29 0x00005655555663ca in _start ()

Reported using DrKonqi