Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.6 x86_64
Distribution (Platform): Slackware Packages

-- Information about the crash:
- What I was doing when the application crashed:
I was switching desktops, but I'm not sure if this triggered the crash. It's crashed unexpectedly before, too, and it doesn't seem to be related to what I'm doing.

- Unusual behavior I noticed:
None
- Custom settings of the application:
Unknown

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fda6f54c7c0 (LWP 25079))]

Thread 8 (Thread 0x7fda57bee700 (LWP 25080)):
#0  0x00007fda66ff130d in poll () at /lib64/libc.so.6
#1  0x00007fda6d397102 in  () at /usr/lib64/libxcb.so.1
#2  0x00007fda6d398c8f in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007fda59a0b4b9 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007fda67bf9f3f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007fda66362684 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fda66ffcefd in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7fda54b9e700 (LWP 25122)):
#0  0x00007fda62452804 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fda6240ef70 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fda6240f883 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fda6240fa5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fda67e1dc3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fda67dc7f5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fda67bf513c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007fda6be7e5d5 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fda67bf9f3f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fda66362684 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fda66ffcefd in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fda43d12700 (LWP 25123)):
#0  0x00007fda6240cb20 in  () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fda6240ef1b in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fda6240f883 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fda6240fa5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fda67e1dc3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fda67dc7f5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fda67bf513c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007fda6be7e5d5 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fda67bf9f3f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fda66362684 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fda66ffcefd in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fda422a9700 (LWP 25124)):
#0  0x00007fda62452804 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fda6240ef70 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fda6240f883 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fda6240fa5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fda67e1dc3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fda67dc7f5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fda67bf513c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007fda6be7e5d5 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fda67bf9f3f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fda66362684 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fda66ffcefd in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fda4090e700 (LWP 25125)):
#0  0x00007fda6636836f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fda6ec511c4 in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007fda6ec51209 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007fda66362684 in start_thread () at /lib64/libpthread.so.0
#4  0x00007fda66ffcefd in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fda39cf2700 (LWP 25128)):
#0  0x00007fda66ff130d in poll () at /lib64/libc.so.6
#1  0x00007fda6240f954 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fda6240fa5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fda67e1dc3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fda67dc7f5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fda67bf513c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fda6ca01aa2 in  () at /usr/lib64/libQt5Quick.so.5
#7  0x00007fda67bf9f3f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fda66362684 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fda66ffcefd in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fd9a9cc4700 (LWP 25198)):
#0  0x00007fda66ff130d in poll () at /lib64/libc.so.6
#1  0x00007fda6240f954 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fda6240fa5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fda67e1dc3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fda67dc7f5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fda67bf513c in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fd9aae11e87 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#7  0x00007fda67bf9f3f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fda66362684 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fda66ffcefd in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fda6f54c7c0 (LWP 25079)):
[KCrash Handler]
#6  0x00007fda691be6d0 in QWidget::windowHandle() const () at /usr/lib64/libQt5Widgets.so.5
#7  0x00007fd9ad8cc3d1 in  () at /usr/lib64/qt5/qml/org/kde/plasma/private/taskmanager/libtaskmanagerplugin.so
#8  0x00007fda67e03648 in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fda67df7f2b in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#10 0x00007fda6919511c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#11 0x00007fda6919a236 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#12 0x00007fda67dca3f3 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#13 0x00007fda67e1cacd in QTimerInfoList::activateTimers() () at /usr/lib64/libQt5Core.so.5
#14 0x00007fda67e1cfe1 in  () at /usr/lib64/libQt5Core.so.5
#15 0x00007fda6240f787 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#16 0x00007fda6240f9b8 in  () at /usr/lib64/libglib-2.0.so.0
#17 0x00007fda6240fa5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#18 0x00007fda67e1dc1f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#19 0x00007fda67dc7f5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#20 0x00007fda67dcfaed in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#21 0x00000000004349d7 in main ()

Reported using DrKonqi