When I right-click the tray icon of Cantata and quit the app from the context menu I get the following crash:

Application: plasmashell (plasmashell), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f5e44391980 (LWP 17022))]

Thread 26 (Thread 0x7f5e3d51b700 (LWP 17024)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348ee09f72 in poll (__timeout=-1, __nfds=1, __fds=0x7f5e3d51ab90) at /usr/include/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x1154700, cond=cond@entry=0x1154740, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:414
#3  0x000000348ee0b6bf in xcb_wait_for_event (c=0x1154700) at xcb_in.c:526
#4  0x00007f5e3db62343 in QXcbEventReader::run (this=0x11627e0) at qxcbconnection.cpp:1043
#5  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x11627e0) at thread/qthread_unix.cpp:345
#6  0x000000348c207f33 in start_thread (arg=0x7f5e3d51b700) at pthread_create.c:309
#7  0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 25 (Thread 0x7f5e34a9e700 (LWP 17045)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5e300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5e34a9dbe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5e34a9dbe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x12a48f0) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x12a48f0) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x12a48f0) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5e34a9e700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 24 (Thread 0x7f5e2d31f700 (LWP 17046)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5e280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5e2d31ebe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5e2d31ebe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x13b2860) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x13b2860) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x13b2860) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5e2d31f700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 23 (Thread 0x7f5e279a5700 (LWP 17047)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5e200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5e279a4be0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5e279a4be0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x17bcde0) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x17bcde0) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x17bcde0) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5e279a5700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 22 (Thread 0x7f5e268c4700 (LWP 17048)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5e180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5e268c3be0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5e268c3be0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x1876ae0) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x1876ae0) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x1876ae0) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5e268c4700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 21 (Thread 0x7f5e257d1700 (LWP 17049)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5e1c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5e257d0be0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5e257d0be0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x1977ec0) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x1977ec0) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x1977ec0) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5e257d1700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 20 (Thread 0x7f5e17fff700 (LWP 17050)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5e100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5e17ffebe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5e17ffebe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x1a352b0) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x1a352b0) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x1a352b0) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5e17fff700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 19 (Thread 0x7f5e16ffe700 (LWP 17051)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5e080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5e16ffdbe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5e16ffdbe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x1b1b310) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x1b1b310) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x1b1b310) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5e16ffe700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 18 (Thread 0x7f5e15ffd700 (LWP 17052)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5e0c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5e15ffcbe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5e15ffcbe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x1c0eb40) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x1c0eb40) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x1c0eb40) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5e15ffd700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 17 (Thread 0x7f5e14ffc700 (LWP 17053)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5e000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5e14ffbbe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5e14ffbbe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x1cce8c0) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x1cce8c0) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x1cce8c0) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5e14ffc700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 16 (Thread 0x7f5e077ff700 (LWP 17054)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5dfc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5e077febe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5e077febe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x1db6930) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x1db6930) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x1db6930) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5e077ff700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 15 (Thread 0x7f5e067fe700 (LWP 17055)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5df40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5e067fdbe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5e067fdbe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x1e98c00) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x1e98c00) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x1e98c00) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5e067fe700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 14 (Thread 0x7f5e057fd700 (LWP 17056)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5df80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5e057fcbe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5e057fcbe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x1f84850) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x1f84850) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x1f84850) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5e057fd700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 13 (Thread 0x7f5df3fff700 (LWP 17057)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5dec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5df3ffebe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5df3ffebe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x2065360) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x2065360) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x2065360) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5df3fff700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 12 (Thread 0x7f5df2ffe700 (LWP 17058)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5d640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5df2ffdbe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5df2ffdbe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x2137820) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x2137820) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x2137820) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5df2ffe700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 11 (Thread 0x7f5df0dff700 (LWP 17061)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5d680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5df0dfebe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5df0dfebe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x23f2080) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x23f2080) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x23f2080) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5df0dff700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 10 (Thread 0x7f5d637ff700 (LWP 17062)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5d5c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5d637feb70, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5d637feb70, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x2129930) at thread/qthread.cpp:511
#7  0x00007f5e4e83f44a in QQuickPixmapReader::run (this=0x2129930) at util/qquickpixmapcache.cpp:688
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x2129930) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5d637ff700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 9 (Thread 0x7f5d62ffe700 (LWP 17066)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5e46a57638 in QWaitConditionPrivate::wait (this=0x288eac0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f5e46a5740b in QWaitCondition::wait (this=0x288f8c0, mutex=0x288f8b8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f5e4e8db133 in QSGRenderThreadEventQueue::takeEvent (this=0x288f8b0, wait=true) at scenegraph/qsgthreadedrenderloop.cpp:254
#4  0x00007f5e4e8d8fc5 in QSGRenderThread::processEventsAndWaitForMore (this=0x288f830) at scenegraph/qsgthreadedrenderloop.cpp:683
#5  0x00007f5e4e8d91cb in QSGRenderThread::run (this=0x288f830) at scenegraph/qsgthreadedrenderloop.cpp:713
#6  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x288f830) at thread/qthread_unix.cpp:345
#7  0x000000348c207f33 in start_thread (arg=0x7f5d62ffe700) at pthread_create.c:309
#8  0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7f5d5bfff700 (LWP 17076)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5d500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5d5bffebe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5d5bffebe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x23eb530) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x23eb530) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x23eb530) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5d5bfff700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7f5d5a761700 (LWP 17077)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce723d in QEventDispatcherGlib::processEvents (this=0x7f5d480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:428
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5d5a760be0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5d5a760be0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x2bcc680) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x2bcc680) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x2bcc680) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5d5a761700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7f5d59700700 (LWP 17078)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5d4c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5d596ffbe0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5d596ffbe0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x2c880b0) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x2c880b0) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x2c880b0) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5d59700700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7f5d466e1700 (LWP 17083)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5e46a57638 in QWaitConditionPrivate::wait (this=0x3142660, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f5e46a5740b in QWaitCondition::wait (this=0x24ff930, mutex=0x24ff928, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f5e4e8db133 in QSGRenderThreadEventQueue::takeEvent (this=0x24ff920, wait=true) at scenegraph/qsgthreadedrenderloop.cpp:254
#4  0x00007f5e4e8d8fc5 in QSGRenderThread::processEventsAndWaitForMore (this=0x24ff8a0) at scenegraph/qsgthreadedrenderloop.cpp:683
#5  0x00007f5e4e8d91cb in QSGRenderThread::run (this=0x24ff8a0) at scenegraph/qsgthreadedrenderloop.cpp:713
#6  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x24ff8a0) at thread/qthread_unix.cpp:345
#7  0x000000348c207f33 in start_thread (arg=0x7f5d466e1700) at pthread_create.c:309
#8  0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f5d458c3700 (LWP 17091)):
#0  0x000000348b6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000348d6495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x7f5d380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7f5d458c2be0, flags=...) at kernel/qeventloop.cpp:136
#5  0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7f5d458c2be0, flags=...) at kernel/qeventloop.cpp:212
#6  0x00007f5e46a4eba2 in QThread::exec (this=0x34c8620) at thread/qthread.cpp:511
#7  0x00007f5e4af03ee1 in QQmlThreadPrivate::run (this=0x34c8620) at qml/ftw/qqmlthread.cpp:149
#8  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x34c8620) at thread/qthread_unix.cpp:345
#9  0x000000348c207f33 in start_thread (arg=0x7f5d458c3700) at pthread_create.c:309
#10 0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f5d3ffff700 (LWP 17119)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5e46a57638 in QWaitConditionPrivate::wait (this=0x35836b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f5e46a5740b in QWaitCondition::wait (this=0x3591d00, mutex=0x3591cf8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f5e4e8db133 in QSGRenderThreadEventQueue::takeEvent (this=0x3591cf0, wait=true) at scenegraph/qsgthreadedrenderloop.cpp:254
#4  0x00007f5e4e8d8fc5 in QSGRenderThread::processEventsAndWaitForMore (this=0x3591c70) at scenegraph/qsgthreadedrenderloop.cpp:683
#5  0x00007f5e4e8d91cb in QSGRenderThread::run (this=0x3591c70) at scenegraph/qsgthreadedrenderloop.cpp:713
#6  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x3591c70) at thread/qthread_unix.cpp:345
#7  0x000000348c207f33 in start_thread (arg=0x7f5d3ffff700) at pthread_create.c:309
#8  0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f5d3f7fe700 (LWP 17178)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5e46a57638 in QWaitConditionPrivate::wait (this=0x38bace0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f5e46a5740b in QWaitCondition::wait (this=0x2b1f2a0, mutex=0x2b1f298, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f5e4e8db133 in QSGRenderThreadEventQueue::takeEvent (this=0x2b1f290, wait=true) at scenegraph/qsgthreadedrenderloop.cpp:254
#4  0x00007f5e4e8d8fc5 in QSGRenderThread::processEventsAndWaitForMore (this=0x2b1f210) at scenegraph/qsgthreadedrenderloop.cpp:683
#5  0x00007f5e4e8d91cb in QSGRenderThread::run (this=0x2b1f210) at scenegraph/qsgthreadedrenderloop.cpp:713
#6  0x00007f5e46a55f8f in QThreadPrivate::start (arg=0x2b1f210) at thread/qthread_unix.cpp:345
#7  0x000000348c207f33 in start_thread (arg=0x7f5d3f7fe700) at pthread_create.c:309
#8  0x000000348b6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f5e44391980 (LWP 17022)):
[KCrash Handler]
#6  0x000000348b635c39 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#7  0x000000348b637348 in __GI_abort () at abort.c:89
#8  0x00007f5e46a430f5 in qt_message_fatal (context=..., message=...) at global/qlogging.cpp:1364
#9  0x00007f5e46a40cf2 in QMessageLogger::fatal (this=0x7fffee7d7bb0, msg=0x7f5e46d46398 "ASSERT: \"%s\" in file %s, line %d") at global/qlogging.cpp:669
#10 0x00007f5e46a3b3e0 in qt_assert (assertion=0x7f5d5a9b2d98 "m_dbusServiceCounts[plugin] >= 0", file=0x7f5d5a9b2b38 "/home/sho/devel/src/kde/workspace/plasma-workspace/applets/systemtray/plugin/protocols/plasmoid/plasmoidprotocol.cpp", line=307) at global/qglobal.cpp:2127
#11 0x00007f5d5a9a9069 in SystemTray::PlasmoidProtocol::serviceUnregistered (this=0x23dfea0, service=...) at /home/sho/devel/src/kde/workspace/plasma-workspace/applets/systemtray/plugin/protocols/plasmoid/plasmoidprotocol.cpp:307
#12 0x00007f5d5a9acd8a in QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<QString const&>, void, void (SystemTray::PlasmoidProtocol::*)(QString const&)>::call (f=(void (SystemTray::PlasmoidProtocol::*)(SystemTray::PlasmoidProtocol * const, const QString &)) 0x7f5d5a9a8f26 <SystemTray::PlasmoidProtocol::serviceUnregistered(QString const&)>, o=0x23dfea0, arg=0x7fffee7d7f30) at /home/sho/devel/src/qt5/qtbase/src/corelib/kernel/qobjectdefs_impl.h:508
#13 0x00007f5d5a9aca70 in QtPrivate::FunctionPointer<void (SystemTray::PlasmoidProtocol::*)(QString const&)>::call<QtPrivate::List<QString const&>, void> (f=(void (SystemTray::PlasmoidProtocol::*)(SystemTray::PlasmoidProtocol * const, const QString &)) 0x7f5d5a9a8f26 <SystemTray::PlasmoidProtocol::serviceUnregistered(QString const&)>, o=0x23dfea0, arg=0x7fffee7d7f30) at /home/sho/devel/src/qt5/qtbase/src/corelib/kernel/qobjectdefs_impl.h:527
#14 0x00007f5d5a9ac539 in QtPrivate::QSlotObject<void (SystemTray::PlasmoidProtocol::*)(QString const&), QtPrivate::List<QString const&>, void>::impl (which=1, this_=0x2f88cc0, r=0x23dfea0, a=0x7fffee7d7f30, ret=0x0) at /home/sho/devel/src/qt5/qtbase/src/corelib/kernel/qobject_impl.h:151
#15 0x00007f5e46cb51cb in QtPrivate::QSlotObjectBase::call (this=0x2f88cc0, r=0x23dfea0, a=0x7fffee7d7f30) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:132
#16 0x00007f5e46cb2431 in QMetaObject::activate (sender=0x2f88530, signalOffset=3, local_signal_index=1, argv=0x7fffee7d7f30) at kernel/qobject.cpp:3666
#17 0x00007f5e46cb1d4c in QMetaObject::activate (sender=0x2f88530, m=0x7f5e4e707600 <QDBusServiceWatcher::staticMetaObject>, local_signal_index=1, argv=0x7fffee7d7f30) at kernel/qobject.cpp:3546
#18 0x00007f5e4e4d37ef in QDBusServiceWatcher::serviceUnregistered (this=0x2f88530, _t1=...) at .moc/moc_qdbusservicewatcher.cpp:206
#19 0x00007f5e4e4d29cc in QDBusServiceWatcherPrivate::_q_serviceOwnerChanged (this=0x2f88b70, service=..., oldOwner=..., newOwner=...) at qdbusservicewatcher.cpp:86
#20 0x00007f5e4e4d343e in QDBusServiceWatcher::qt_static_metacall (_o=0x2f88530, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7fffee7d8090) at .moc/moc_qdbusservicewatcher.cpp:97
#21 0x00007f5e4e4d360b in QDBusServiceWatcher::qt_metacall (this=0x2f88530, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7fffee7d8090) at .moc/moc_qdbusservicewatcher.cpp:150
#22 0x00007f5e4e483753 in QDBusConnectionPrivate::deliverCall (this=0x11be3e0, object=0x2f88530, msg=..., metaTypes=..., slotIdx=8) at qdbusintegrator.cpp:991
#23 0x00007f5e4e48de7e in QDBusCallDeliveryEvent::placeMetaCall (this=0x2b274b0, object=0x2f88530) at qdbusintegrator_p.h:103
#24 0x00007f5e46cabd04 in QObject::event (this=0x2f88530, e=0x2b274b0) at kernel/qobject.cpp:1241
#25 0x00007f5e47acb80e in QApplicationPrivate::notify_helper (this=0x1143ca0, receiver=0x2f88530, e=0x2b274b0) at kernel/qapplication.cpp:3522
#26 0x00007f5e47ac8fa0 in QApplication::notify (this=0x7fffee7d91f0, receiver=0x2f88530, e=0x2b274b0) at kernel/qapplication.cpp:2975
#27 0x00007f5e46c708d4 in QCoreApplication::notifyInternal (this=0x7fffee7d91f0, receiver=0x2f88530, event=0x2b274b0) at kernel/qcoreapplication.cpp:935
#28 0x00007f5e46c744fd in QCoreApplication::sendEvent (receiver=0x2f88530, event=0x2b274b0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:237
#29 0x00007f5e46c71beb in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1137810) at kernel/qcoreapplication.cpp:1539
#30 0x00007f5e46c7159c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1397
#31 0x00007f5e46ce6a7c in postEventSourceDispatch (s=0x1192af0) at kernel/qeventdispatcher_glib.cpp:279
#32 0x000000348d6492a6 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#33 0x000000348d649628 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#34 0x000000348d6496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#35 0x00007f5e46ce721d in QEventDispatcherGlib::processEvents (this=0x11877f0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#36 0x00007f5e3dbbc9ee in QPAEventDispatcherGlib::processEvents (this=0x11877f0, flags=...) at eventdispatchers/qeventdispatcher_glib.cpp:123
#37 0x00007f5e46c6d5f2 in QEventLoop::processEvents (this=0x7fffee7d9090, flags=...) at kernel/qeventloop.cpp:136
#38 0x00007f5e46c6d8cb in QEventLoop::exec (this=0x7fffee7d9090, flags=...) at kernel/qeventloop.cpp:212
#39 0x00007f5e46c70f8f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#40 0x00007f5e472424be in QGuiApplication::exec () at kernel/qguiapplication.cpp:1456
#41 0x00007f5e47ac87cd in QApplication::exec () at kernel/qapplication.cpp:2767
#42 0x00000000004662a5 in main (argc=3, argv=0x7fffee7d9658) at /home/sho/devel/src/kde/workspace/plasma-workspace/shell/main.cpp:117