Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-34-generic x86_64
Distribution: Ubuntu 16.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed: I had just rebooted my system because of an earlier crash in handbrake and not being able to start applications after that crash. After the reboot I moved a konsole window, that I have started at boot time, from one screen to another and started nmon in it. That was the only window I was able to get a keyboard response from at that point.

- Unusual behavior I noticed: Although the mouse was moving I couldn't get a response from any application or the K-Start button to do anything. The only response I could get was inside the konsole window. I do have a lvm volume that is syncing after the reboot but that was the only significant system activity I could see in the nmon display.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb808ed58c0 (LWP 11733))]

Thread 16 (Thread 0x7fb70a7fd700 (LWP 7051)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb803c80aeb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x4f4e3e0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x4f4f248, mutex=mutex@entry=0x4f4f240, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fb806f5092e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x4f4f238) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x4f4f1c0) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007fb806f511b3 in QSGRenderThread::run (this=0x4f4f1c0) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007fb803c7f84e in QThreadPrivate::start (arg=0x4f4f1c0) at thread/qthread_unix.cpp:331
#7  0x00007fb802d516fa in start_thread (arg=0x7fb70a7fd700) at pthread_create.c:333
#8  0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7fb70bfff700 (LWP 5452)):
#0  0x00007fb8002f0ac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb8002ab474 in g_main_context_release () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb8002ac356 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb8002ac4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb803eb6a9b in QEventDispatcherGlib::processEvents (this=0x7fb7040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb803e5ddea in QEventLoop::exec (this=this@entry=0x7fb70bffece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb803c7a8a4 in QThread::exec (this=this@entry=0x4874480) at thread/qthread.cpp:503
#7  0x00007fb8065433c5 in QQmlThreadPrivate::run (this=0x4874480) at qml/ftw/qqmlthread.cpp:141
#8  0x00007fb803c7f84e in QThreadPrivate::start (arg=0x4874480) at thread/qthread_unix.cpp:331
#9  0x00007fb802d516fa in start_thread (arg=0x7fb70bfff700) at pthread_create.c:333
#10 0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7fb726bf4700 (LWP 15454)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb803c80aeb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x46b3b10) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x46b8e48, mutex=mutex@entry=0x46b8e40, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fb806f5092e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x46b8e38) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x46b8dc0) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007fb806f511b3 in QSGRenderThread::run (this=0x46b8dc0) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007fb803c7f84e in QThreadPrivate::start (arg=0x46b8dc0) at thread/qthread_unix.cpp:331
#7  0x00007fb802d516fa in start_thread (arg=0x7fb726bf4700) at pthread_create.c:333
#8  0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7fb7277fe700 (LWP 15453)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb803c80aeb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x44f2490) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x44cb2e8, mutex=mutex@entry=0x44cb2e0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fb806f5092e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x44cb2d8) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x44cb260) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007fb806f511b3 in QSGRenderThread::run (this=0x44cb260) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007fb803c7f84e in QThreadPrivate::start (arg=0x44cb260) at thread/qthread_unix.cpp:331
#7  0x00007fb802d516fa in start_thread (arg=0x7fb7277fe700) at pthread_create.c:333
#8  0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7fb727fff700 (LWP 15451)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb803c80aeb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x433fa00) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x433f3b8, mutex=mutex@entry=0x433f3b0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fb806f5092e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x433f3a8) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x433f330) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007fb806f511b3 in QSGRenderThread::run (this=0x433f330) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007fb803c7f84e in QThreadPrivate::start (arg=0x433f330) at thread/qthread_unix.cpp:331
#7  0x00007fb802d516fa in start_thread (arg=0x7fb727fff700) at pthread_create.c:333
#8  0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fb72e391700 (LWP 15380)):
#0  0x00007fb80357ce8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb8002ac39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb8002ac4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb803eb6a9b in QEventDispatcherGlib::processEvents (this=0x7fb7280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb803e5ddea in QEventLoop::exec (this=this@entry=0x7fb72e390cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb803c7a8a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fb7308a97d7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007fb803c7f84e in QThreadPrivate::start (arg=0x3907d80) at thread/qthread_unix.cpp:331
#8  0x00007fb802d516fa in start_thread (arg=0x7fb72e391700) at pthread_create.c:333
#9  0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fb7437f5700 (LWP 14344)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb803c80aeb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1a0d240) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x1cb0f08, mutex=mutex@entry=0x1cb0f00, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fb806f5092e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x1cb0ef8) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x1cb0e80) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007fb806f511b3 in QSGRenderThread::run (this=0x1cb0e80) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007fb803c7f84e in QThreadPrivate::start (arg=0x1cb0e80) at thread/qthread_unix.cpp:331
#7  0x00007fb802d516fa in start_thread (arg=0x7fb7437f5700) at pthread_create.c:333
#8  0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fb74a54d700 (LWP 14329)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb803c80aeb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x19f93b0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x1731f98, mutex=mutex@entry=0x1731f90, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fb806f5092e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x1731f88) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x1731f10) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007fb806f511b3 in QSGRenderThread::run (this=0x1731f10) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007fb803c7f84e in QThreadPrivate::start (arg=0x1731f10) at thread/qthread_unix.cpp:331
#7  0x00007fb802d516fa in start_thread (arg=0x7fb74a54d700) at pthread_create.c:333
#8  0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fb74bb29700 (LWP 14314)):
#0  0x00007fb8002f0ac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb8002ab330 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb8002ac255 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb8002ac4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb803eb6a9b in QEventDispatcherGlib::processEvents (this=0x7fb7440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb803e5ddea in QEventLoop::exec (this=this@entry=0x7fb74bb28c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb803c7a8a4 in QThread::exec (this=this@entry=0x20a8e50) at thread/qthread.cpp:503
#7  0x00007fb806edaed6 in QQuickPixmapReader::run (this=0x20a8e50) at util/qquickpixmapcache.cpp:817
#8  0x00007fb803c7f84e in QThreadPrivate::start (arg=0x20a8e50) at thread/qthread_unix.cpp:331
#9  0x00007fb802d516fa in start_thread (arg=0x7fb74bb29700) at pthread_create.c:333
#10 0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fb7d88d9700 (LWP 14292)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb80891ebd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fb80891ec19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fb802d516fa in start_thread (arg=0x7fb7d88d9700) at pthread_create.c:333
#4  0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fb7da5c8700 (LWP 12915)):
#0  0x00007fb80357ce8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb8002ac39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb8002ac4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb803eb6a9b in QEventDispatcherGlib::processEvents (this=0x7fb7cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb803e5ddea in QEventLoop::exec (this=this@entry=0x7fb7da5c7ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb803c7a8a4 in QThread::exec (this=this@entry=0xe33b70) at thread/qthread.cpp:503
#6  0x00007fb8065433c5 in QQmlThreadPrivate::run (this=0xe33b70) at qml/ftw/qqmlthread.cpp:141
#7  0x00007fb803c7f84e in QThreadPrivate::start (arg=0xe33b70) at thread/qthread_unix.cpp:331
#8  0x00007fb802d516fa in start_thread (arg=0x7fb7da5c8700) at pthread_create.c:333
#9  0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fb7db5c9700 (LWP 12648)):
#0  0x00007fb80357ce8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb8002ac39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb8002ac4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb803eb6a9b in QEventDispatcherGlib::processEvents (this=0x7fb7d40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb803e5ddea in QEventLoop::exec (this=this@entry=0x7fb7db5c8ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb803c7a8a4 in QThread::exec (this=this@entry=0xd52920) at thread/qthread.cpp:503
#6  0x00007fb8065433c5 in QQmlThreadPrivate::run (this=0xd52920) at qml/ftw/qqmlthread.cpp:141
#7  0x00007fb803c7f84e in QThreadPrivate::start (arg=0xd52920) at thread/qthread_unix.cpp:331
#8  0x00007fb802d516fa in start_thread (arg=0x7fb7db5c9700) at pthread_create.c:333
#9  0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fb7e1649700 (LWP 12557)):
#0  0x00007fb8002a93c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb8002abcfa in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb8002ac340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb8002ac4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb803eb6a9b in QEventDispatcherGlib::processEvents (this=0x7fb7dc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb803e5ddea in QEventLoop::exec (this=this@entry=0x7fb7e1648ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb803c7a8a4 in QThread::exec (this=this@entry=0x919600) at thread/qthread.cpp:503
#7  0x00007fb8065433c5 in QQmlThreadPrivate::run (this=0x919600) at qml/ftw/qqmlthread.cpp:141
#8  0x00007fb803c7f84e in QThreadPrivate::start (arg=0x919600) at thread/qthread_unix.cpp:331
#9  0x00007fb802d516fa in start_thread (arg=0x7fb7e1649700) at pthread_create.c:333
#10 0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fb7ee1c9700 (LWP 11742)):
#0  0x00007fb80357ce8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb8002ac39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb8002ac4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb803eb6a9b in QEventDispatcherGlib::processEvents (this=0x7fb7e80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb803e5ddea in QEventLoop::exec (this=this@entry=0x7fb7ee1c8ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb803c7a8a4 in QThread::exec (this=this@entry=0x7e0570) at thread/qthread.cpp:503
#6  0x00007fb8065433c5 in QQmlThreadPrivate::run (this=0x7e0570) at qml/ftw/qqmlthread.cpp:141
#7  0x00007fb803c7f84e in QThreadPrivate::start (arg=0x7e0570) at thread/qthread_unix.cpp:331
#8  0x00007fb802d516fa in start_thread (arg=0x7fb7ee1c9700) at pthread_create.c:333
#9  0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fb7f4f59700 (LWP 11734)):
#0  0x00007fb80357ce8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb80768bc62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fb80768d8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fb7f7713629 in QXcbEventReader::run (this=0x6edc40) at qxcbconnection.cpp:1253
#4  0x00007fb803c7f84e in QThreadPrivate::start (arg=0x6edc40) at thread/qthread_unix.cpp:331
#5  0x00007fb802d516fa in start_thread (arg=0x7fb7f4f59700) at pthread_create.c:333
#6  0x00007fb803588b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fb808ed58c0 (LWP 11733)):
[KCrash Handler]
#6  QGuiApplication::focusObject () at kernel/qguiapplication.cpp:837
#7  0x00007fb806f75dec in QQuickWindowPrivate::updateFocusItemTransform (this=this@entry=0x1ffa2f0) at items/qquickwindow.cpp:89
#8  0x00007fb806f7a9f8 in QQuickWindowPrivate::polishItems (this=0x1ffa2f0) at items/qquickwindow.cpp:271
#9  0x00007fb806f4d951 in QSGThreadedRenderLoop::polishAndSync (this=this@entry=0x8eacc0, w=<optimized out>, inExpose=inExpose@entry=false) at scenegraph/qsgthreadedrenderloop.cpp:1130
#10 0x00007fb806f4e5a2 in QSGThreadedRenderLoop::handleUpdateRequest (this=0x8eacc0, window=0x10abe10) at scenegraph/qsgthreadedrenderloop.cpp:977
#11 0x00007fb806f83857 in QQuickWindow::event (this=this@entry=0x10abe10, e=e@entry=0x7ffe3effca30) at items/qquickwindow.cpp:1400
#12 0x0000000000444a8b in PanelView::event (this=0x10abe10, e=0x7ffe3effca30) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/shell/panelview.cpp:844
#13 0x00007fb80496505c in QApplicationPrivate::notify_helper (this=this@entry=0x6d3c80, receiver=receiver@entry=0x10abe10, e=e@entry=0x7ffe3effca30) at kernel/qapplication.cpp:3716
#14 0x00007fb80496a516 in QApplication::notify (this=0x7ffe3effd1c0, receiver=0x10abe10, e=0x7ffe3effca30) at kernel/qapplication.cpp:3499
#15 0x00007fb803e6062b in QCoreApplication::notifyInternal (this=0x7ffe3effd1c0, receiver=receiver@entry=0x10abe10, event=event@entry=0x7ffe3effca30) at kernel/qcoreapplication.cpp:965
#16 0x00007fb8041ad0b0 in QCoreApplication::sendEvent (event=0x7ffe3effca30, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#17 QWindowPrivate::deliverUpdateRequest (this=this@entry=0x1ffa2f0) at kernel/qwindow.cpp:2087
#18 0x00007fb8041ad5e9 in QWindow::event (this=this@entry=0x10abe10, ev=ev@entry=0x7ffe3effce20) at kernel/qwindow.cpp:2069
#19 0x00007fb806f83871 in QQuickWindow::event (this=this@entry=0x10abe10, e=e@entry=0x7ffe3effce20) at items/qquickwindow.cpp:1413
#20 0x0000000000444a8b in PanelView::event (this=0x10abe10, e=0x7ffe3effce20) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/shell/panelview.cpp:844
#21 0x00007fb80496505c in QApplicationPrivate::notify_helper (this=this@entry=0x6d3c80, receiver=receiver@entry=0x10abe10, e=e@entry=0x7ffe3effce20) at kernel/qapplication.cpp:3716
#22 0x00007fb80496a516 in QApplication::notify (this=0x7ffe3effd1c0, receiver=0x10abe10, e=0x7ffe3effce20) at kernel/qapplication.cpp:3499
#23 0x00007fb803e6062b in QCoreApplication::notifyInternal (this=0x7ffe3effd1c0, receiver=0x10abe10, event=event@entry=0x7ffe3effce20) at kernel/qcoreapplication.cpp:965
#24 0x00007fb803eb589d in QCoreApplication::sendEvent (event=0x7ffe3effce20, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#25 QTimerInfoList::activateTimers (this=0x72d3a0) at kernel/qtimerinfo_unix.cpp:637
#26 0x00007fb803eb5da1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#27 0x00007fb8002ac1a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007fb8002ac400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007fb8002ac4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007fb803eb6a7f in QEventDispatcherGlib::processEvents (this=0x731a30, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#31 0x00007fb803e5ddea in QEventLoop::exec (this=this@entry=0x7ffe3effd060, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#32 0x00007fb803e65e8c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#33 0x00007fb80419bc3c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#34 0x00007fb804961495 in QApplication::exec () at kernel/qapplication.cpp:2976
#35 0x0000000000432d4a in main (argc=2, argv=<optimized out>) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/shell/main.cpp:181

Reported using DrKonqi