I'm getting regular crashes, here there's a backtrace:

Application: plasma-shell (plasma-shell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
To enable execution of this file add
	add-auto-load-safe-path /usr/lib/libstdc++.so.6.0.19-gdb.py
line to your configuration file "/home/apol/.gdbinit".
To completely disable this security protection add
	set auto-load safe-path /
line to your configuration file "/home/apol/.gdbinit".
For more information about this security protection see the
"Auto-loading safe path" section in the GDB manual.  E.g., run from the shell:
	info "(gdb)Auto-loading safe path"
[Current thread is 1 (Thread 0x7f2e32bb7800 (LWP 19357))]

Thread 28 (Thread 0x7f2d928b2700 (LWP 19359)):
#0  0x00007f2e28f5f35d in poll () from /usr/lib/libc.so.6
#1  0x00007f2e23bdad64 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d8c0008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#4  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d928b1d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#5  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d928b1d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#6  0x00007f2e29aef566 in QThread::exec (this=0x1f7bf70) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#7  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x1f7bf70) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#8  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x1f7bf70) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#9  0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 27 (Thread 0x7f2d88309700 (LWP 19360)):
#0  0x00007f2e23c1c64a in ?? () from /usr/lib/libglib-2.0.so.0
#1  0x00007f2e23c1cac9 in g_private_get () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23c00130 in g_thread_self () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdae5d in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d800008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#5  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d88308d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#6  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d88308d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#7  0x00007f2e29aef566 in QThread::exec (this=0x22a0a70) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#8  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x22a0a70) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#9  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x22a0a70) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#10 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 26 (Thread 0x7f2d862a5700 (LWP 19363)):
#0  0x00007f2e23c1c3ba in ?? () from /usr/lib/libglib-2.0.so.0
#1  0x00007f2e23c1c719 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bda5fb in g_main_context_query () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdacd2 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d7c0008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#6  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d862a4d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#7  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d862a4d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#8  0x00007f2e29aef566 in QThread::exec (this=0x220d290) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#9  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x220d290) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#10 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x220d290) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#11 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 25 (Thread 0x7f2d85224700 (LWP 19364)):
#0  0x00007f2e23bd818b in ?? () from /usr/lib/libglib-2.0.so.0
#1  0x00007f2e23bda3ab in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdac83 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d700008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#5  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d85223d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#6  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d85223d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#7  0x00007f2e29aef566 in QThread::exec (this=0x23bbf40) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#8  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x23bbf40) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#9  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x23bbf40) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#10 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 24 (Thread 0x7f2d77fff700 (LWP 19366)):
#0  0x00007f2e28f5f35d in poll () from /usr/lib/libc.so.6
#1  0x00007f2e23bdad64 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d6c0008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#4  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d77ffed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#5  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d77ffed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#6  0x00007f2e29aef566 in QThread::exec (this=0x24d1020) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#7  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x24d1020) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#8  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x24d1020) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#9  0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 23 (Thread 0x7f2d76ffe700 (LWP 19367)):
#0  0x00007f2e28f5f35d in poll () from /usr/lib/libc.so.6
#1  0x00007f2e23bdad64 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d640008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#4  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d76ffdd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#5  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d76ffdd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#6  0x00007f2e29aef566 in QThread::exec (this=0x25acdd0) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#7  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x25acdd0) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#8  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x25acdd0) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#9  0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 22 (Thread 0x7f2d75f4d700 (LWP 19368)):
#0  0x00007f2e23c1c3ba in ?? () from /usr/lib/libglib-2.0.so.0
#1  0x00007f2e23c1c719 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bd9e30 in g_main_context_acquire () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdac25 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d680008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#6  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d75f4cd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#7  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d75f4cd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#8  0x00007f2e29aef566 in QThread::exec (this=0x25af570) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#9  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x25af570) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#10 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x25af570) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#11 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 21 (Thread 0x7f2d74e5c700 (LWP 19369)):
#0  0x00007f2e28f5f35d in poll () from /usr/lib/libc.so.6
#1  0x00007f2e23bdad64 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d5c0008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#4  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d74e5bd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#5  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d74e5bd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#6  0x00007f2e29aef566 in QThread::exec (this=0x272f030) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#7  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x272f030) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#8  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x272f030) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#9  0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 20 (Thread 0x7f2d637ff700 (LWP 19370)):
#0  0x00007f2e28f5f35d in poll () from /usr/lib/libc.so.6
#1  0x00007f2e23bdad64 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d580008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#4  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d637fed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#5  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d637fed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#6  0x00007f2e29aef566 in QThread::exec (this=0x2821300) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#7  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x2821300) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#8  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x2821300) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#9  0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 19 (Thread 0x7f2d627fe700 (LWP 19371)):
#0  0x00007f2e29aec61d in QBasicAtomicOps<8>::testAndSetRelaxed<QMutexData*> (_q_value=@0x2915198: 0x0, expectedValue=0x1, newValue=0x0, currentValue=0x7f2d627fda38) at ../../include/QtCore/../../../../frameworks/qt5/qtbase/src/corelib/arch/qatomic_x86.h:267
#1  0x00007f2e29aec48a in testAndSetRelease<QMutexData*, QMutexData*> (currentValue=0x7f2d627fda38, newValue=0x0, expectedValue=0x1, _q_value=@0x2915198: 0x0) at ../../include/QtCore/../../../../frameworks/qt5/qtbase/src/corelib/thread/qgenericatomic.h:183
#2  QBasicAtomicPointer<QMutexData>::testAndSetRelease (this=0x2915198, expectedValue=0x1, newValue=0x0, currentValue=@0x7f2d627fda38: 0x7f2d627fdaa0) at ../../include/QtCore/../../../../frameworks/qt5/qtbase/src/corelib/thread/qbasicatomic.h:286
#3  0x00007f2e29aec156 in QBasicMutex::fastTryUnlock (this=0x2915198, current=@0x7f2d627fda38: 0x7f2d627fdaa0) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qmutex.h:93
#4  0x00007f2e29aebad7 in QMutex::unlock (this=0x2915198) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qmutex.cpp:272
#5  0x00007f2e29acf9ac in QMutexLocker::unlock (this=0x7f2d627fdaa0) at ../../include/QtCore/../../../../frameworks/qt5/qtbase/src/corelib/thread/qmutex.h:146
#6  0x00007f2e29acf966 in QMutexLocker::~QMutexLocker (this=0x7f2d627fdaa0, __in_chrg=<optimized out>) at ../../include/QtCore/../../../../frameworks/qt5/qtbase/src/corelib/thread/qmutex.h:140
#7  0x00007f2e29d89656 in QThreadData::canWaitLocked (this=0x2915170) at ../../include/QtCore/5.3.0/QtCore/private/../../../../../../../frameworks/qt5/qtbase/src/corelib/thread/qthread_p.h:249
#8  0x00007f2e29d8c5f9 in postEventSourcePrepare (s=0x7f2d50001340, timeout=0x7f2d627fdae4) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:262
#9  0x00007f2e29d8c67a in postEventSourceCheck (source=0x7f2d50001340) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:272
#10 0x00007f2e23bda7e1 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#11 0x00007f2e23bdacfb in ?? () from /usr/lib/libglib-2.0.so.0
#12 0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#13 0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d500008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#14 0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d627fdd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#15 0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d627fdd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#16 0x00007f2e29aef566 in QThread::exec (this=0x2922e20) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#17 0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x2922e20) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#18 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x2922e20) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#19 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#20 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 18 (Thread 0x7f2d617fd700 (LWP 19372)):
#0  0x00007f2e28f5b42d in read () from /usr/lib/libc.so.6
#1  0x00007f2e23c1b9b0 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bda894 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdacfb in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d540008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#6  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d617fcd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#7  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d617fcd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#8  0x00007f2e29aef566 in QThread::exec (this=0x29fe830) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#9  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x29fe830) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#10 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x29fe830) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#11 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 17 (Thread 0x7f2d4ffff700 (LWP 19373)):
#0  0x00007f2e23bda3eb in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#1  0x00007f2e23bdac83 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d480008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#4  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d4fffed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#5  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d4fffed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#6  0x00007f2e29aef566 in QThread::exec (this=0x2ae3220) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#7  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x2ae3220) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#8  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x2ae3220) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#9  0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 16 (Thread 0x7f2d4cf9f700 (LWP 19375)):
#0  0x00007f2e23bd81c0 in ?? () from /usr/lib/libglib-2.0.so.0
#1  0x00007f2e23bda3ab in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdac83 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d440008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#5  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d4cf9ed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#6  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d4cf9ed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#7  0x00007f2e29aef566 in QThread::exec (this=0x2cf5db0) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#8  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x2cf5db0) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#9  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x2cf5db0) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#10 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 15 (Thread 0x7f2d3e7fe700 (LWP 19377)):
#0  0x00007f2e23c1c719 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f2e23bda419 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdac83 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d300008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#5  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d3e7fdd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#6  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d3e7fdd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#7  0x00007f2e29aef566 in QThread::exec (this=0x2ee0af0) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#8  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x2ee0af0) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#9  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x2ee0af0) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#10 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 14 (Thread 0x7f2d4effe700 (LWP 19378)):
#0  0x00007f2e28f5f35d in poll () from /usr/lib/libc.so.6
#1  0x00007f2e23bdad64 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d40033700, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#4  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d4effdd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#5  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d4effdd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#6  0x00007f2e29aef566 in QThread::exec (this=0x2cc3230) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#7  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x2cc3230) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#8  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x2cc3230) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#9  0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 13 (Thread 0x7f2d3d3be700 (LWP 19379)):
#0  0x00007f2e29d8c129 in socketNotifierSourceCheck (source=0x7f2d34002e50) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:98
#1  0x00007f2e23bda7e1 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdacfb in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d340008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#5  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d3d3bdd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#6  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d3d3bdd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#7  0x00007f2e29aef566 in QThread::exec (this=0x2bd2970) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#8  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x2bd2970) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#9  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x2bd2970) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#10 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 12 (Thread 0x7f2d2ffff700 (LWP 19380)):
#0  QTimerInfoList::timerWait (this=0x7f2d28002d20, tm=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qtimerinfo_unix.cpp:412
#1  0x00007f2e29d8c26b in timerSourcePrepareHelper (src=0x7f2d28002cc0, timeout=0x7f2d2fffeb34) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:135
#2  0x00007f2e29d8c413 in timerSourcePrepare (source=0x7f2d28002cc0, timeout=0x7f2d2fffeb34) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:168
#3  0x00007f2e23bda40d in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e23bdac83 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#6  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d280008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#7  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d2fffed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#8  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d2fffed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#9  0x00007f2e29aef566 in QThread::exec (this=0x31ee670) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#10 0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x31ee670) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#11 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x31ee670) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#12 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#13 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 11 (Thread 0x7f2d3f7ff700 (LWP 19381)):
#0  0x00007f2e28f741b0 in pthread_mutex_unlock () from /usr/lib/libc.so.6
#1  0x00007f2e23c1c751 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bda7a0 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdacfb in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d3802ea50, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#6  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d3f7fed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#7  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d3f7fed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#8  0x00007f2e29aef566 in QThread::exec (this=0x2ea5180) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#9  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x2ea5180) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#10 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x2ea5180) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#11 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 10 (Thread 0x7f2d26d62700 (LWP 19382)):
#0  0x00007f2e28c70500 in __pthread_mutex_unlock_usercnt () from /usr/lib/libpthread.so.0
#1  0x00007f2e23c1c751 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bda95a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdadc8 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d200008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#6  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d26d61d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#7  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d26d61d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#8  0x00007f2e29aef566 in QThread::exec (this=0x2e2d540) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#9  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x2e2d540) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#10 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x2e2d540) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#11 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7f2d25c6f700 (LWP 19383)):
#0  0x00007f2e23c1c3ba in ?? () from /usr/lib/libglib-2.0.so.0
#1  0x00007f2e23c1c749 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bda400 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdac83 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d180008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#6  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d25c6ed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#7  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d25c6ed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#8  0x00007f2e29aef566 in QThread::exec (this=0x557b010) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#9  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x557b010) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#10 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x557b010) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#11 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7f2d1ffff700 (LWP 19384)):
#0  0x00007f2e28f741b0 in pthread_mutex_unlock () from /usr/lib/libc.so.6
#1  0x00007f2e23c1c751 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdad11 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d140008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#5  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d1fffed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#6  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d1fffed60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#7  0x00007f2e29aef566 in QThread::exec (this=0x57ddd60) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#8  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x57ddd60) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#9  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x57ddd60) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#10 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7f2d1effe700 (LWP 19385)):
#0  0x00007f2e28c704e0 in __pthread_mutex_unlock_usercnt () from /usr/lib/libpthread.so.0
#1  0x00007f2e23c1c751 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bda95a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdadc8 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d0c0008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#6  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d1effdd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#7  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d1effdd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#8  0x00007f2e29aef566 in QThread::exec (this=0x58910c0) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#9  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x58910c0) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#10 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x58910c0) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#11 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7f2d1d983700 (LWP 19386)):
#0  0x00007f2e28c6f389 in pthread_mutex_lock () from /usr/lib/libpthread.so.0
#1  0x00007f2e23c1c721 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bda419 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdac83 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d100008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#6  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d1d982d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#7  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d1d982d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#8  0x00007f2e29aef566 in QThread::exec (this=0x5769600) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#9  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x5769600) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#10 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x5769600) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#11 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7f2d1c8b2700 (LWP 19387)):
#0  0x00007f2e29af65cd in QThreadData::current (createIfNecessary=45) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:219
#1  0x00007f2e29d8c5cc in postEventSourcePrepare (s=0x7f2d04001340, timeout=0x7f2d1c8b1b34) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:255
#2  0x00007f2e23bda40d in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdac83 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d040008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#6  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d1c8b1d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#7  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d1c8b1d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#8  0x00007f2e29aef566 in QThread::exec (this=0x5ac6350) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#9  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x5ac6350) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#10 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x5ac6350) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#11 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7f2d0acad700 (LWP 19388)):
#0  0x00007f2e23bda3c0 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#1  0x00007f2e23bdac83 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2d000008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#4  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d0acacd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#5  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d0acacd60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#6  0x00007f2e29aef566 in QThread::exec (this=0x5c19d00) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#7  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x5c19d00) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#8  0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x5c19d00) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#9  0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f2d09bba700 (LWP 19389)):
#0  0x00007f2e23bac860 in pthread_mutex_lock@plt () from /usr/lib/libglib-2.0.so.0
#1  0x00007f2e23c1c721 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bd9f78 in g_main_context_release () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdad11 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2cf80008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#6  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2d09bb9d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#7  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2d09bb9d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#8  0x00007f2e29aef566 in QThread::exec (this=0x5d728f0) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#9  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x5d728f0) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#10 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x5d728f0) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#11 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f2cffe31700 (LWP 20271)):
#0  0x00007f2e28c704ea in __pthread_mutex_unlock_usercnt () from /usr/lib/libpthread.so.0
#1  0x00007f2e23c1c751 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#2  0x00007f2e23bd9e70 in g_main_context_acquire () from /usr/lib/libglib-2.0.so.0
#3  0x00007f2e23bdac25 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f2e29d8ce7f in QEventDispatcherGlib::processEvents (this=0x7f2cf40008c0, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:428
#6  0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7f2cffe30d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#7  0x00007f2e29d12557 in QEventLoop::exec (this=0x7f2cffe30d60, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#8  0x00007f2e29aef566 in QThread::exec (this=0x672cd00) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:511
#9  0x00007f2e31ea3e65 in QQmlThreadPrivate::run (this=0x672cd00) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:149
#10 0x00007f2e29af6a9d in QThreadPrivate::start (arg=0x672cd00) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:345
#11 0x00007f2e28c6d0a2 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f2e28f67d1d in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f2e32bb7800 (LWP 19357)):
[KCrash Handler]
#6  0x00007f2d914872aa in Plasma::WindowThumbnail::windowToTextureGLX (this=0x59e2d60, textureNode=0x696a290) at /home/kde-devel/frameworks/plasma-framework/src/declarativeimports/core/windowthumbnail.cpp:229
#7  0x00007f2d91487ba0 in Plasma::WindowThumbnail::windowToTexture (this=0x59e2d60, textureNode=0x696a290) at /home/kde-devel/frameworks/plasma-framework/src/declarativeimports/core/windowthumbnail.cpp:327
#8  0x00007f2d91486a83 in Plasma::WindowThumbnail::updatePaintNode (this=0x59e2d60, oldNode=0x0, updatePaintNodeData=0x2dda5a0) at /home/kde-devel/frameworks/plasma-framework/src/declarativeimports/core/windowthumbnail.cpp:153
#9  0x00007f2e325175e1 in QQuickWindowPrivate::updateDirtyNode (this=0x2dda410, item=0x59e2d60) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:2650
#10 0x00007f2e3251663f in QQuickWindowPrivate::updateDirtyNodes (this=0x2dda410) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:2475
#11 0x00007f2e3250dfb6 in QQuickWindowPrivate::syncSceneGraph (this=0x2dda410) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:347
#12 0x00007f2e324dc661 in QSGGuiThreadRenderLoop::renderWindow (this=0x2098f00, window=0x5ec0fe0) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/quick/scenegraph/qsgrenderloop.cpp:365
#13 0x00007f2e324dcafa in QSGGuiThreadRenderLoop::exposureChanged (this=0x2098f00, window=0x5ec0fe0) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/quick/scenegraph/qsgrenderloop.cpp:414
#14 0x00007f2e3250d8f8 in QQuickWindow::exposeEvent (this=0x5ec0fe0) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:216
#15 0x00007f2e2a55d3fc in QWindow::event (this=0x5ec0fe0, ev=0x7fff5d062960) at /home/kde-devel/frameworks/qt5/qtbase/src/gui/kernel/qwindow.cpp:1956
#16 0x00007f2e325117d7 in QQuickWindow::event (this=0x5ec0fe0, e=0x7fff5d062960) at /home/kde-devel/frameworks/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:1341
#17 0x00007f2e308fde1e in PlasmaQuick::Dialog::event (this=0x5ec0fe0, event=0x7fff5d062960) at /home/kde-devel/frameworks/plasma-framework/src/plasmaquick/dialog.cpp:801
#18 0x00007f2d9147e513 in ToolTipDialog::event (this=0x5ec0fe0, e=0x7fff5d062960) at /home/kde-devel/frameworks/plasma-framework/src/declarativeimports/core/tooltipdialog.cpp:110
#19 0x00007f2e2add60fa in QApplicationPrivate::notify_helper (this=0x1e79d80, receiver=0x5ec0fe0, e=0x7fff5d062960) at /home/kde-devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3501
#20 0x00007f2e2add388c in QApplication::notify (this=0x7fff5d062e60, receiver=0x5ec0fe0, e=0x7fff5d062960) at /home/kde-devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:2954
#21 0x00007f2e29d155be in QCoreApplication::notifyInternal (this=0x7fff5d062e60, receiver=0x5ec0fe0, event=0x7fff5d062960) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:935
#22 0x00007f2e2a554a59 in QCoreApplication::sendSpontaneousEvent (receiver=0x5ec0fe0, event=0x7fff5d062960) at ../../include/QtCore/../../../../frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.h:240
#23 0x00007f2e2a551fc1 in QGuiApplicationPrivate::processExposeEvent (e=0x691b750) at /home/kde-devel/frameworks/qt5/qtbase/src/gui/kernel/qguiapplication.cpp:2528
#24 0x00007f2e2a54d9e8 in QGuiApplicationPrivate::processWindowSystemEvent (e=0x691b750) at /home/kde-devel/frameworks/qt5/qtbase/src/gui/kernel/qguiapplication.cpp:1566
#25 0x00007f2e2a537cb7 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/gui/kernel/qwindowsysteminterface.cpp:579
#26 0x00007f2e1cad35aa in userEventSourceDispatch (source=0x1eb1230) at /home/kde-devel/frameworks/qt5/qtbase/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp:78
#27 0x00007f2e23bdab84 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#28 0x00007f2e23bdadc8 in ?? () from /usr/lib/libglib-2.0.so.0
#29 0x00007f2e23bdae6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#30 0x00007f2e29d8ce5f in QEventDispatcherGlib::processEvents (this=0x1eaf020, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:426
#31 0x00007f2e1cad37bc in QPAEventDispatcherGlib::processEvents (this=0x1eaf020, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp:123
#32 0x00007f2e29d12274 in QEventLoop::processEvents (this=0x7fff5d062d20, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#33 0x00007f2e29d12557 in QEventLoop::exec (this=0x7fff5d062d20, flags=...) at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#34 0x00007f2e29d15ca7 in QCoreApplication::exec () at /home/kde-devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1188
#35 0x00007f2e2a54d656 in QGuiApplication::exec () at /home/kde-devel/frameworks/qt5/qtbase/src/gui/kernel/qguiapplication.cpp:1436
#36 0x00007f2e2add30b9 in QApplication::exec () at /home/kde-devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:2746
#37 0x0000000000456d8d in main (argc=1, argv=0x7fff5d063248) at /home/kde-devel/frameworks/plasma-workspace/shell/main.cpp:97


Reproducible: Sometimes

Steps to Reproduce:
1. Use plasma shell