Application: plasmashell (5.12.7)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-45-generic i686
Distribution: Ubuntu 18.04.2 LTS

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

- Unusual behavior I noticed:

- Custom settings of the application:
i have send this report a lot
pleas fix this bug tanks
when i have working with kde show a black page and reseted kde envir...

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1d579c0 (LWP 1138))]

Thread 8 (Thread 0x9f96ab40 (LWP 1255)):
#0  0xb7f2bd09 in __kernel_vsyscall ()
#1  0xb530243b in __GI___poll (fds=0x1f86b60, nfds=1, timeout=2242669) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0xb4207730 in g_poll () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb41f81ca in ?? () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb41f8314 in g_main_context_iteration () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb5855884 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#6  0xb57efd5d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#7  0xb56045f1 in QThread::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#8  0xa014a780 in KCupsConnection::run() () from /usr/lib/i386-linux-gnu/libkcupslib.so
#9  0xb5609d8c in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#10 0xb51b23bd in start_thread (arg=0x9f96ab40) at pthread_create.c:463
#11 0xb530ce16 in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:108

Thread 7 (Thread 0xa982db40 (LWP 1248)):
#0  0xb7f2bd09 in __kernel_vsyscall ()
#1  0xb7f2b986 in __vdso_clock_gettime ()
#2  0xb531a881 in __GI___clock_gettime (clock_id=1, tp=0xa982cf64) at ../sysdeps/unix/clock_gettime.c:115
#3  0xb5854ffc in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#4  0xb58536d2 in QTimerInfoList::updateCurrentTime() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#5  0xb5853c14 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#6  0xb58555e9 in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#7  0xb41f7684 in g_main_context_prepare () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb41f80d4 in ?? () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb41f8314 in g_main_context_iteration () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb5855884 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#11 0xb57efd5d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#12 0xb56045f1 in QThread::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#13 0xb7361839 in ?? () from /usr/lib/i386-linux-gnu/libQt5Quick.so.5
#14 0xb5609d8c in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#15 0xb51b23bd in start_thread (arg=0xa982db40) at pthread_create.c:463
#16 0xb530ce16 in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:108

Thread 6 (Thread 0xacc90b40 (LWP 1247)):
#0  0xb7f2bd09 in __kernel_vsyscall ()
#1  0xb51b8810 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0xb7e8c8d8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#2  __pthread_cond_wait_common (abstime=0x0, mutex=0xb7e8c898, cond=0xb7e8c8b0) at pthread_cond_wait.c:502
#3  __pthread_cond_wait (cond=0xb7e8c8b0, mutex=0xb7e8c898) at pthread_cond_wait.c:655
#4  0xb7d4eb54 in ?? () from /usr/lib/i386-linux-gnu/libQt5Script.so.5
#5  0xb7d4eb9c in ?? () from /usr/lib/i386-linux-gnu/libQt5Script.so.5
#6  0xb51b23bd in start_thread (arg=0xacc90b40) at pthread_create.c:463
#7  0xb530ce16 in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:108

Thread 5 (Thread 0xae25eb40 (LWP 1245)):
#0  0xb7f2bd09 in __kernel_vsyscall ()
#1  0xb7f2b986 in __vdso_clock_gettime ()
#2  0xb531a881 in __GI___clock_gettime (clock_id=1, tp=0xae25dfb4) at ../sysdeps/unix/clock_gettime.c:115
#3  0xb5854ffc in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#4  0xb58536d2 in QTimerInfoList::updateCurrentTime() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#5  0xb5853c14 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#6  0xb58555e9 in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#7  0xb41f7684 in g_main_context_prepare () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb41f80d4 in ?? () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb41f8314 in g_main_context_iteration () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb5855884 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#11 0xb57efd5d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#12 0xb56045f1 in QThread::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#13 0xb6f5cfaf in ?? () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#14 0xb5609d8c in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#15 0xb51b23bd in start_thread (arg=0xae25eb40) at pthread_create.c:463
#16 0xb530ce16 in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:108

Thread 4 (Thread 0xaf6f4b40 (LWP 1222)):
#0  0xb534b38d in __x86.get_pc_thunk.di () from /lib/i386-linux-gnu/libc.so.6
#1  0xb531a0c9 in __libc_disable_asynccancel (oldtype=0) at ../nptl/cancellation.c:66
#2  0xb530244f in __GI___poll (fds=0x866be0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#3  0xb4207730 in g_poll () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb41f81ca in ?? () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb41f8314 in g_main_context_iteration () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb5855884 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#7  0xb57efd5d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#8  0xb56045f1 in QThread::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#9  0xb6f5cfaf in ?? () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5
#10 0xb5609d8c in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#11 0xb51b23bd in start_thread (arg=0xaf6f4b40) at pthread_create.c:463
#12 0xb530ce16 in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:108

Thread 3 (Thread 0xb0a33b40 (LWP 1164)):
#0  0xb423f8f0 in g_mutex_unlock () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb41f7678 in g_main_context_prepare () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb41f80d4 in ?? () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb41f8314 in g_main_context_iteration () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb5855884 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#5  0xb57efd5d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#6  0xb56045f1 in QThread::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#7  0xb5b01efc in ?? () from /usr/lib/i386-linux-gnu/libQt5DBus.so.5
#8  0xb5609d8c in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#9  0xb51b23bd in start_thread (arg=0xb0a33b40) at pthread_create.c:463
#10 0xb530ce16 in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:108

Thread 2 (Thread 0xb171eb40 (LWP 1156)):
#0  0xb7f2bd09 in __kernel_vsyscall ()
#1  0xb530243b in __GI___poll (fds=0xb171e18c, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0xb7845bad in ?? () from /usr/lib/i386-linux-gnu/libxcb.so.1
#3  0xb7847d83 in xcb_wait_for_event () from /usr/lib/i386-linux-gnu/libxcb.so.1
#4  0xb18b1323 in ?? () from /usr/lib/i386-linux-gnu/libQt5XcbQpa.so.5
#5  0xb5609d8c in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#6  0xb51b23bd in start_thread (arg=0xb171eb40) at pthread_create.c:463
#7  0xb530ce16 in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:108

Thread 1 (Thread 0xb1d579c0 (LWP 1138)):
[KCrash Handler]
#7  0xb59b11e0 in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#8  0xb58272dd in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#9  0xa863ffb3 in ?? () from /usr/lib/i386-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#10 0xa861f38a in ?? () from /usr/lib/i386-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#11 0xa8642699 in ?? () from /usr/lib/i386-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#12 0xb5826c6e in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#13 0xb58272dd in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#14 0xb58273a9 in QObject::destroyed(QObject*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#15 0xb582df08 in QObject::~QObject() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#16 0xb5784a9f in QAbstractItemModel::~QAbstractItemModel() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#17 0xb57852b4 in QAbstractListModel::~QAbstractListModel() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#18 0xa8618f76 in ?? () from /usr/lib/i386-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#19 0xa861223f in ?? () from /usr/lib/i386-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#20 0xa861227a in ?? () from /usr/lib/i386-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#21 0xb58248a1 in QObjectPrivate::deleteChildren() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#22 0xb582e4c7 in QObject::~QObject() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#23 0xb5784a9f in QAbstractItemModel::~QAbstractItemModel() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#24 0xb57852b4 in QAbstractListModel::~QAbstractListModel() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#25 0xa85f3894 in ?? () from /usr/lib/i386-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#26 0xa86085c6 in ?? () from /usr/lib/i386-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#27 0xa862b438 in ?? () from /usr/lib/i386-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#28 0xa86229e3 in ?? () from /usr/lib/i386-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#29 0xb58248a1 in QObjectPrivate::deleteChildren() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#30 0xb582e4c7 in QObject::~QObject() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#31 0xb7432f32 in QQuickItem::~QQuickItem() () from /usr/lib/i386-linux-gnu/libQt5Quick.so.5
#32 0xb7450be3 in ?? () from /usr/lib/i386-linux-gnu/libQt5Quick.so.5
#33 0xb7740778 in KDeclarative::QmlObject::~QmlObject() () from /usr/lib/i386-linux-gnu/libKF5Declarative.so.5
#34 0xb77413ad in KDeclarative::QmlObjectSharedEngine::~QmlObjectSharedEngine() () from /usr/lib/i386-linux-gnu/libKF5Declarative.so.5
#35 0xb77414aa in KDeclarative::QmlObjectSharedEngine::~QmlObjectSharedEngine() () from /usr/lib/i386-linux-gnu/libKF5Declarative.so.5
#36 0xb58248a1 in QObjectPrivate::deleteChildren() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#37 0xb582e4c7 in QObject::~QObject() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#38 0xb7432f32 in QQuickItem::~QQuickItem() () from /usr/lib/i386-linux-gnu/libQt5Quick.so.5
#39 0xb7eb0b4a in PlasmaQuick::AppletQuickItem::~AppletQuickItem() () from /usr/lib/i386-linux-gnu/libKF5PlasmaQuick.so.5
#40 0xae26e284 in ?? () from /usr/lib/i386-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#41 0xae26e2ea in ?? () from /usr/lib/i386-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#42 0xb58248a1 in QObjectPrivate::deleteChildren() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#43 0xb582e4c7 in QObject::~QObject() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#44 0xb77dd784 in Plasma::ScriptEngine::~ScriptEngine() () from /usr/lib/i386-linux-gnu/libKF5Plasma.so.5
#45 0xb77dc76f in Plasma::AppletScript::~AppletScript() () from /usr/lib/i386-linux-gnu/libKF5Plasma.so.5
#46 0xae269b30 in ?? () from /usr/lib/i386-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#47 0xb778446d in ?? () from /usr/lib/i386-linux-gnu/libKF5Plasma.so.5
#48 0xb778467a in ?? () from /usr/lib/i386-linux-gnu/libKF5Plasma.so.5
#49 0xb7772705 in Plasma::Applet::~Applet() () from /usr/lib/i386-linux-gnu/libKF5Plasma.so.5
#50 0xb777274a in Plasma::Applet::~Applet() () from /usr/lib/i386-linux-gnu/libKF5Plasma.so.5
#51 0xb58277db in QObject::event(QEvent*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#52 0xb62392ea in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQt5Widgets.so.5
#53 0xb62413c7 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQt5Widgets.so.5
#54 0xb57f20fa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#55 0xb57f4ac4 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#56 0xb57f5007 in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#57 0xb5856323 in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#58 0xb41f7ff0 in g_main_context_dispatch () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#59 0xb41f8269 in ?? () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#60 0xb41f8314 in g_main_context_iteration () from /usr/lib/i386-linux-gnu/libglib-2.0.so.0
#61 0xb5855863 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#62 0xb191acf1 in ?? () from /usr/lib/i386-linux-gnu/libQt5XcbQpa.so.5
#63 0xb57efd5d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#64 0xb57f99ad in QCoreApplication::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5
#65 0xb5c626e1 in QGuiApplication::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Gui.so.5
#66 0xb6239244 in QApplication::exec() () from /usr/lib/i386-linux-gnu/libQt5Widgets.so.5
#67 0x004f773a in ?? ()
#68 0xb522ce81 in __libc_start_main (main=0x4f6d70, argc=1, argv=0xbfdd1754, init=0x557e50 <__libc_csu_init>, fini=0x557eb0 <__libc_csu_fini>, rtld_fini=0xb7f3c9b0 <_dl_fini>, stack_end=0xbfdd174c) at ../csu/libc-start.c:310
#69 0x004f7ad7 in _start ()

Reported using DrKonqi