Bug 384291

Application: plasmashell (5.10.5)

Qt Version: 5.9.1
Frameworks Version: 5.37.0
Operating System: Linux 4.12.8-2-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
I think. I wrote everything in the title. Sometimes when i doing somthing in icon task. Plasma make crash.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plazma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4a5b3a7c80 (LWP 447))]

Thread 10 (Thread 0x7f494f7be700 (LWP 1049)):
#0  0x00007f4a54933bad in read () at /usr/lib/libc.so.6
#1  0x00007f4a4f29d730 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f4a4f2596eb in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f4a4f259bb0 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f4a4f259d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f4a5526c084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f4a5520fffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f4a5502940e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f4a581b13d9 in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007f4a5502e15b in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f4a541f7049 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f4a54941f0f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f4971bcb700 (LWP 907)):
#0  0x00007f4a54937e9d in poll () at /usr/lib/libc.so.6
#1  0x00007f4a4946eee1 in  () at /usr/lib/libpulse.so.0
#2  0x00007f4a494606f1 in pa_mainloop_poll () at /usr/lib/libpulse.so.0
#3  0x00007f4a49460d8e in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#4  0x00007f4a49460e40 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#5  0x00007f4a4946ee29 in  () at /usr/lib/libpulse.so.0
#6  0x00007f4a48be9fe8 in  () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#7  0x00007f4a541f7049 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f4a54941f0f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f499bdf9700 (LWP 777)):
#0  0x00007f4a4f29ea84 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f4a4f259588 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f4a4f259bb0 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f4a4f259d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f4a5526c084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f4a5520fffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f4a5502940e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f4a58d6296b in  () at /usr/lib/libQt5Quick.so.5
#8  0x00007f4a5502e15b in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f4a541f7049 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f4a54941f0f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f49a3ba0700 (LWP 669)):
#0  0x00007f4a4f256ada in  () at /usr/lib/libglib-2.0.so.0
#1  0x00007f4a4f25907b in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f4a4f259b3b in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f4a4f259d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f4a5526c084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f4a5520fffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f4a5502940e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f4a5502e15b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f4a541f7049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f4a54941f0f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f49a43a1700 (LWP 667)):
#0  0x00007f4a4f29ea84 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f4a4f259d26 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#2  0x00007f4a5526c084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007f4a5520fffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f4a5502940e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007f49a4959c3a in  () at /usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#6  0x00007f4a5502e15b in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f4a541f7049 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f4a54941f0f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f4a34d07700 (LWP 643)):
#0  0x00007f4a541fd1ad in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f4a5aa89b04 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f4a5aa89b49 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f4a541f7049 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f4a54941f0f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f4a36f73700 (LWP 642)):
#0  0x00007f4a4f29ea60 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f4a4f259796 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#2  0x00007f4a4f259c88 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f4a4f259d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f4a5526c084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f4a5520fffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f4a5502940e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f4a581b13d9 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f4a5502e15b in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f4a541f7049 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f4a54941f0f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f4a3d553700 (LWP 633)):
#0  0x00007f4a54937e9d in poll () at /usr/lib/libc.so.6
#1  0x00007f4a4f259c09 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f4a4f259d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f4a5526c084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f4a5520fffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f4a5502940e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f4a581b13d9 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f4a5502e15b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f4a541f7049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f4a54941f0f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f4a3ef9d700 (LWP 573)):
#0  0x00007f4a4f29ea84 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f4a4f259609 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f4a4f259bb0 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f4a4f259d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f4a5526c084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f4a5520fffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f4a5502940e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f4a5568b396 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007f4a5502e15b in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f4a541f7049 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f4a54941f0f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f4a5b3a7c80 (LWP 447)):
[KCrash Handler]
#5  0x00007f4a5521ae67 in QMetaObject::cast(QObject const*) const () at /usr/lib/libQt5Core.so.5
#6  0x00007f49a99840af in  () at /usr/lib/qt/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#7  0x00007f49a9988e51 in  () at /usr/lib/qt/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#8  0x00007f49a998993c in  () at /usr/lib/qt/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#9  0x00007f49a9989c19 in  () at /usr/lib/qt/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#10 0x00007f4a55a0b4d5 in QWindow::event(QEvent*) () at /usr/lib/libQt5Gui.so.5
#11 0x00007f4a58e3e936 in QQuickWindow::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#12 0x00007f49a998a071 in  () at /usr/lib/qt/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#13 0x00007f4a561c3e4c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#14 0x00007f4a561cb926 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#15 0x00007f4a55211bd0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#16 0x00007f4a559ff1e4 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#17 0x00007f4a55a00d46 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#18 0x00007f4a559d84ac in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#19 0x00007f4a47734cc1 in  () at /usr/lib/libQt5XcbQpa.so.5
#20 0x00007f4a4f259a57 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#21 0x00007f4a4f259c88 in  () at /usr/lib/libglib-2.0.so.0
#22 0x00007f4a4f259d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#23 0x00007f4a5526c061 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#24 0x00007f4a5520fffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#25 0x00007f4a55219048 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#26 0x000055ee95a3371b in  ()
#27 0x00007f4a548744ca in __libc_start_main () at /usr/lib/libc.so.6
#28 0x000055ee95a33aba in _start ()

Reported using DrKonqi