Application: plasmashell (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-21-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:

I just booted my computer, and I entered my password at the login screen. Instead of having the usual desktop, I saw the crash assistant instead.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7f800128f7c0 (LWP 1833))]

Thread 30 (Thread 0x7f7feb0cb700 (LWP 1840)):
#0  0x00007f7ffc04e8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7ffe5bbb72 in poll (__timeout=-1, __nfds=1, __fds=0x7f7feb0cad00) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x2584bc0, cond=cond@entry=0x2584c00, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:447
#3  0x00007f7ffe5bd64f in xcb_wait_for_event (c=0x2584bc0) at ../../src/xcb_in.c:622
#4  0x00007f7fedc5a099 in QXcbEventReader::run (this=0x2592e20) at qxcbconnection.cpp:1105
#5  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x2592e20) at thread/qthread_unix.cpp:337
#6  0x00007f7ffb8d56aa in start_thread (arg=0x7f7feb0cb700) at pthread_create.c:333
#7  0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7f7fe3fff700 (LWP 1851)):
#0  0x00007f7ff879f789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7ff875a2d7 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875ade8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7fd80008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7fe3ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x266d8a0) at thread/qthread_unix.cpp:337
#9  0x00007f7ffb8d56aa in start_thread (arg=0x7f7fe3fff700) at pthread_create.c:333
#10 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7f7fd596a700 (LWP 1868)):
#0  0x00007f7ffc04e8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7ff875aebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7fd00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7fd5969de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x2a5bc40) at thread/qthread_unix.cpp:337
#8  0x00007f7ffb8d56aa in start_thread (arg=0x7f7fd596a700) at pthread_create.c:333
#9  0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7f7fcf9b2700 (LWP 1890)):
#0  0x00007f7ff879f7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7ff875a6f9 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875ae37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7fc80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7fcf9b1de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x2c02f40) at thread/qthread_unix.cpp:337
#9  0x00007f7ffb8d56aa in start_thread (arg=0x7f7fcf9b2700) at pthread_create.c:333
#10 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7f7fce991700 (LWP 1891)):
#0  0x00007ffd5015ad18 in clock_gettime ()
#1  0x00007f7ffc06838d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f7ffc785cb6 in qt_clock_gettime (ts=0x7f7fce990b40, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:161
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:170
#5  0x00007f7ffc964639 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f7fc0002cd0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f7ffc964ba5 in QTimerInfoList::timerWait (this=0x7f7fc0002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007f7ffc96603e in timerSourcePrepareHelper (timeout=0x7f7fce990c14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f7fce990c14) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f7ff875a3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f7ff875ade8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7fc00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7fce990de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x2ce4960) at thread/qthread_unix.cpp:337
#17 0x00007f7ffb8d56aa in start_thread (arg=0x7f7fce991700) at pthread_create.c:333
#18 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f7fcd890700 (LWP 1892)):
#0  0x00007f7ffc04e8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7ff875aebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7fc40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7fcd88fde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x2dd6df0) at thread/qthread_unix.cpp:337
#8  0x00007f7ffb8d56aa in start_thread (arg=0x7f7fcd890700) at pthread_create.c:333
#9  0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f7fbffff700 (LWP 1893)):
#0  0x00007f8001242888 in update_get_addr (ti=0x7f7ffcb69680) at dl-tls.c:804
#1  0x00007f7ffc6cea12 in get_thread_data () at thread/qthread_unix.cpp:181
#2  QThreadData::current (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:212
#3  0x00007f7ffc966591 in postEventSourcePrepare (timeout=0x0, s=0x7f7fb80012d0) at kernel/qeventdispatcher_glib.cpp:247
#4  postEventSourceCheck (source=0x7f7fb80012d0) at kernel/qeventdispatcher_glib.cpp:264
#5  0x00007f7ff875a8c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f7ff875ae60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7fb80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#9  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7fbfffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#10 0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#11 0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x2ed3710) at thread/qthread_unix.cpp:337
#13 0x00007f7ffb8d56aa in start_thread (arg=0x7f7fbffff700) at pthread_create.c:333
#14 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f7fbeffe700 (LWP 1894)):
#0  0x00007f7ffc04e8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7ff875aebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7fb00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7fbeffdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x2fc6920) at thread/qthread_unix.cpp:337
#8  0x00007f7ffb8d56aa in start_thread (arg=0x7f7fbeffe700) at pthread_create.c:333
#9  0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f7fbdffd700 (LWP 1895)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f7ffc04e8d2 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f7ff875aebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7fb40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7fbdffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x30e96b0) at thread/qthread_unix.cpp:337
#9  0x00007f7ffb8d56aa in start_thread (arg=0x7f7fbdffd700) at pthread_create.c:333
#10 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f7fbcffc700 (LWP 1896)):
#0  0x00007f7ffc04e8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7ff875aebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7fa80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7fbcffbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x31dd3f0) at thread/qthread_unix.cpp:337
#8  0x00007f7ffb8d56aa in start_thread (arg=0x7f7fbcffc700) at pthread_create.c:333
#9  0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f7faf7ff700 (LWP 1897)):
#0  0x00007f7ff879f789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7ff875a8cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875ae60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7fa40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7faf7fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x32c1640) at thread/qthread_unix.cpp:337
#9  0x00007f7ffb8d56aa in start_thread (arg=0x7f7faf7ff700) at pthread_create.c:333
#10 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f7fae7fe700 (LWP 1899)):
#0  0x00007f7ff879f7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7ff875a490 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875ade8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7f9c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7fae7fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x33cf2f0) at thread/qthread_unix.cpp:337
#9  0x00007f7ffb8d56aa in start_thread (arg=0x7f7fae7fe700) at pthread_create.c:333
#10 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f7fad7fd700 (LWP 1900)):
#0  0x00007f7ff875a4aa in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7ff875ade8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7fa00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7fad7fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x348fc30) at thread/qthread_unix.cpp:337
#8  0x00007f7ffb8d56aa in start_thread (arg=0x7f7fad7fd700) at pthread_create.c:333
#9  0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f7f9bfff700 (LWP 1901)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f80003d9644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f80003d9689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f7ffb8d56aa in start_thread (arg=0x7f7f9bfff700) at pthread_create.c:333
#4  0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f7f1b7fe700 (LWP 1902)):
#0  timerSourceCheck (source=0x7f7f14003070) at kernel/qeventdispatcher_glib.cpp:164
#1  0x00007f7ff875a8c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875ae60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7f140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7f1b7fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x33a4c20) at thread/qthread_unix.cpp:337
#9  0x00007f7ffb8d56aa in start_thread (arg=0x7f7f1b7fe700) at pthread_create.c:333
#10 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f7f195e3700 (LWP 1908)):
#0  0x00007f7ff875a404 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7ff875ade8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7f0c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7f195e2de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x394ddb0) at thread/qthread_unix.cpp:337
#8  0x00007f7ffb8d56aa in start_thread (arg=0x7f7f195e3700) at pthread_create.c:333
#9  0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f7f13b70700 (LWP 1909)):
#0  0x00007f7ff879f7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7ff875a3f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875ade8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7f080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7f13b6fd90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f8000f42b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x3a785c0) at thread/qthread_unix.cpp:337
#9  0x00007f7ffb8d56aa in start_thread (arg=0x7f7f13b70700) at pthread_create.c:333
#10 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f7f12f86700 (LWP 1911)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f7ffe5bbdb9 in _xcb_conn_wait (c=c@entry=0x2584bc0, cond=cond@entry=0x7f7f12f83180, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:415
#2  0x00007f7ffe5bd3ff in wait_for_reply (c=c@entry=0x2584bc0, request=1438, e=e@entry=0x7f7f12f83258) at ../../src/xcb_in.c:490
#3  0x00007f7ffe5bd512 in xcb_wait_for_reply (c=c@entry=0x2584bc0, request=1438, e=e@entry=0x7f7f12f83258) at ../../src/xcb_in.c:520
#4  0x00007f7ffe80d69f in _XReply (dpy=0x2583900, rep=0x7f7f12f832a0, extra=0, discard=0) at ../../src/xcb_io.c:602
#5  0x00007f7ff7de58cd in ?? () from /usr/lib/nvidia-346/libGL.so.1
#6  0x00007f7ff7db26ae in ?? () from /usr/lib/nvidia-346/libGL.so.1
#7  0x00007f7ff377de97 in ?? () from /usr/lib/nvidia-346/libnvidia-glcore.so.346.59
#8  0x00007f7ff37d0135 in ?? () from /usr/lib/nvidia-346/libnvidia-glcore.so.346.59
#9  0x00007f7ff37dbd91 in ?? () from /usr/lib/nvidia-346/libnvidia-glcore.so.346.59
#10 0x00007f7ff373c5f6 in ?? () from /usr/lib/nvidia-346/libnvidia-glcore.so.346.59
#11 0x00007f7ff33ebb34 in ?? () from /usr/lib/nvidia-346/libnvidia-glcore.so.346.59
#12 0x00007f7ff345b3d6 in ?? () from /usr/lib/nvidia-346/libnvidia-glcore.so.346.59
#13 0x00007f7ff379e5a6 in ?? () from /usr/lib/nvidia-346/libnvidia-glcore.so.346.59
#14 0x00007f7ff33e4803 in ?? () from /usr/lib/nvidia-346/libnvidia-glcore.so.346.59
#15 0x00007f7ff33e4999 in ?? () from /usr/lib/nvidia-346/libnvidia-glcore.so.346.59
#16 0x00007f7ffcf50b49 in operator()<unsigned int, unsigned int, unsigned int, unsigned int, int> (p5=<optimized out>, p4=16, p3=3553, p2=36064, p1=36160, this=0x7f7f12f83a00) at opengl/qopenglfunctions.cpp:2367
#17 qopenglfResolveFramebufferTexture2D (target=36160, attachment=36064, textarget=3553, texture=16, level=<optimized out>) at opengl/qopenglfunctions.cpp:2829
#18 0x00007f7ffcf82ce7 in glFramebufferTexture2D (level=<optimized out>, texture=<optimized out>, textarget=<optimized out>, attachment=<optimized out>, target=<optimized out>, this=<optimized out>) at ../../include/QtGui/../../src/gui/opengl/qopenglfunctions.h:1396
#19 QOpenGLTextureGlyphCache::resizeTextureData (this=0x7f7f00373ff0, width=318257804, height=16) at opengl/qopengltextureglyphcache.cpp:227
#20 0x00007f7ffcf07907 in resizeCache (height=16, width=512, this=0x7f7f00373ff0) at painting/qtextureglyphcache_p.h:124
#21 QTextureGlyphCache::fillInPendingGlyphs (this=0x7f7f00373ff0) at painting/qtextureglyphcache.cpp:244
#22 0x00007f8000f9c6b3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007f8000f9a74c in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#24 0x00007f80010292d7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#25 0x00007f800102e8d5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007f800102a207 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#27 0x00007f800102895b in QQuickText::updatePaintNode(QSGNode*, QQuickItem::UpdatePaintNodeData*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#28 0x00007f8000fe04bf in QQuickWindowPrivate::updateDirtyNode(QQuickItem*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#29 0x00007f8000fe14cb in QQuickWindowPrivate::updateDirtyNodes() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#30 0x00007f8000fe1d80 in QQuickWindowPrivate::syncSceneGraph() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#31 0x00007f8000fb31dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#32 0x00007f8000fb40a1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#33 0x00007f8000fb5360 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#34 0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x3923b90) at thread/qthread_unix.cpp:337
#35 0x00007f7ffb8d56aa in start_thread (arg=0x7f7f12f86700) at pthread_create.c:333
#36 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f7f07fff700 (LWP 1914)):
#0  0x00007f7ffc04a49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7ff4d1af45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007f7ff879e2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875a96c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ff875ae60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7efc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7f07ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x2a37090) at thread/qthread_unix.cpp:337
#11 0x00007f7ffb8d56aa in start_thread (arg=0x7f7f07fff700) at pthread_create.c:333
#12 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f7efbfff700 (LWP 2002)):
#0  0x00007f7ffc04e8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7ff875aebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7ef40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7efbffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x52537a0) at thread/qthread_unix.cpp:337
#8  0x00007f7ffb8d56aa in start_thread (arg=0x7f7efbfff700) at pthread_create.c:333
#9  0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f7efaffe700 (LWP 2003)):
#0  0x00007f7ffc04a49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7ff4d1af45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007f7ff879e2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875a96c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ff875ae60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7eec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7efaffdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x5364780) at thread/qthread_unix.cpp:337
#11 0x00007f7ffb8d56aa in start_thread (arg=0x7f7efaffe700) at pthread_create.c:333
#12 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f7ef9ffd700 (LWP 2005)):
#0  0x00007f7ff879f7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7ff875aa2a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875af20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7ef00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7ef9ffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x5421140) at thread/qthread_unix.cpp:337
#9  0x00007f7ffb8d56aa in start_thread (arg=0x7f7ef9ffd700) at pthread_create.c:333
#10 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f7ef8ffc700 (LWP 2006)):
#0  0x00007f7ff879f7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7ff875a3f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875ade8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7ee40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7ef8ffbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x5521210) at thread/qthread_unix.cpp:337
#9  0x00007f7ffb8d56aa in start_thread (arg=0x7f7ef8ffc700) at pthread_create.c:333
#10 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f7eeb7ff700 (LWP 2007)):
#0  0x00007f7ffc04e8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7ff875aebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7ee00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7eeb7fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x5644ab0) at thread/qthread_unix.cpp:337
#8  0x00007f7ffb8d56aa in start_thread (arg=0x7f7eeb7ff700) at pthread_create.c:333
#9  0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f7eea7fe700 (LWP 2009)):
#0  0x00007f7ff879f7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7ff875a8b9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875ae60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7ed80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7eea7fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x57361e0) at thread/qthread_unix.cpp:337
#9  0x00007f7ffb8d56aa in start_thread (arg=0x7f7eea7fe700) at pthread_create.c:333
#10 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f7ee97fd700 (LWP 2010)):
#0  0x00007f7ffc04a49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7ff4d1af45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007f7ff879e2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff875a96c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ff875ae60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7edc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7ee97fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x582ebc0) at thread/qthread_unix.cpp:337
#11 0x00007f7ffb8d56aa in start_thread (arg=0x7f7ee97fd700) at pthread_create.c:333
#12 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f7ed39cc700 (LWP 2059)):
[KCrash Handler]
#6  QString (other=..., this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qstring.h:811
#7  node_copy (this=<optimized out>, src=0x5cab7a0, to=<optimized out>, from=0x7f7ead8c4220) at ../../include/QtCore/../../src/corelib/tools/qlist.h:412
#8  detach_helper (alloc=<optimized out>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qlist.h:727
#9  detach_helper (this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qlist.h:741
#10 detach (this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qlist.h:135
#11 end (this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qlist.h:279
#12 QtPrivate::QStringList_sort (that=0x7f7ed39cb750, cs=(unknown: 75514884)) at tools/qstringlist.cpp:260
#13 0x00007f7ed5c7607b in KCupsConnection::updateSubscription() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#14 0x00007f7ffc93e9c9 in QMetaObject::activate (sender=sender@entry=0x5ca94e0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3716
#15 0x00007f7ffc93f057 in QMetaObject::activate (sender=sender@entry=0x5ca94e0, m=m@entry=0x7f7ffcb68580 <QTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3582
#16 0x00007f7ffc9be610 in QTimer::timeout (this=this@entry=0x5ca94e0) at .moc/moc_qtimer.cpp:192
#17 0x00007f7ffc94c918 in QTimer::timerEvent (this=0x5ca94e0, e=<optimized out>) at kernel/qtimer.cpp:247
#18 0x00007f7ffc93f6f3 in QObject::event (this=0x5ca94e0, e=<optimized out>) at kernel/qobject.cpp:1267
#19 0x00007f7ffd217b2c in QApplicationPrivate::notify_helper (this=0x2567050, receiver=0x5ca94e0, e=0x7f7ed39cbb70) at kernel/qapplication.cpp:3720
#20 0x00007f7ffd21d000 in QApplication::notify (this=0x7ffd5013bda0, receiver=0x5ca94e0, e=0x7f7ed39cbb70) at kernel/qapplication.cpp:3503
#21 0x00007f7ffc90dc2b in QCoreApplication::notifyInternal (this=0x7ffd5013bda0, receiver=0x5ca94e0, event=event@entry=0x7f7ed39cbb70) at kernel/qcoreapplication.cpp:935
#22 0x00007f7ffc965ae5 in sendEvent (event=0x7f7ed39cbb70, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#23 QTimerInfoList::activateTimers (this=0x7f7ecc002ed0) at kernel/qtimerinfo_unix.cpp:635
#24 0x00007f7ffc965f61 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#25 0x00007f7ff875ac3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f7ff875af20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f7ffc966c57 in QEventDispatcherGlib::processEvents (this=0x7f7ecc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#29 0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7ed39cbdc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#30 0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#31 0x00007f7ed5c75cf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#32 0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x5ca7250) at thread/qthread_unix.cpp:337
#33 0x00007f7ffb8d56aa in start_thread (arg=0x7f7ed39cc700) at pthread_create.c:333
#34 0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f7ed3084700 (LWP 2060)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f7ffc6d0c6b in wait (time=18446744073709551615, this=0x5e8b260) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5e7e660, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f8000fb4fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f8000fb53a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x5e7e5e0) at thread/qthread_unix.cpp:337
#6  0x00007f7ffb8d56aa in start_thread (arg=0x7f7ed3084700) at pthread_create.c:333
#7  0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f7ed2389700 (LWP 2061)):
#0  0x00007f7ffc04e8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7ff875aebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ffc966c6c in QEventDispatcherGlib::processEvents (this=0x7f7ec80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7f7ed2388de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f7ffc6cab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f7ffe458f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7ffc6cfb0e in QThreadPrivate::start (arg=0x602fef0) at thread/qthread_unix.cpp:337
#8  0x00007f7ffb8d56aa in start_thread (arg=0x7f7ed2389700) at pthread_create.c:333
#9  0x00007f7ffc059eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f800128f7c0 (LWP 1833)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f7ffc6d0c6b in wait (time=18446744073709551615, this=0x37c3a90) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3923bd0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f8000fb6c48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f8000fb7cad in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f7ffd217b2c in QApplicationPrivate::notify_helper (this=0x2567050, receiver=0x28133a0, e=0x7ffd5013b9d0) at kernel/qapplication.cpp:3720
#6  0x00007f7ffd21d000 in QApplication::notify (this=0x7ffd5013bda0, receiver=0x28133a0, e=0x7ffd5013b9d0) at kernel/qapplication.cpp:3503
#7  0x00007f7ffc90dc2b in QCoreApplication::notifyInternal (this=0x7ffd5013bda0, receiver=0x28133a0, event=event@entry=0x7ffd5013b9d0) at kernel/qcoreapplication.cpp:935
#8  0x00007f7ffc965ae5 in sendEvent (event=0x7ffd5013b9d0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#9  QTimerInfoList::activateTimers (this=0x25c1f70) at kernel/qtimerinfo_unix.cpp:635
#10 0x00007f7ffc965f61 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#11 0x00007f7ff875ac3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f7ff875af20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f7ff875afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f7ffc966c57 in QEventDispatcherGlib::processEvents (this=0x25b8d00, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#15 0x00007f7ffc90b3e2 in QEventLoop::exec (this=this@entry=0x7ffd5013bc20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#16 0x00007f7ffc91302c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#17 0x000000000042fd9b in main ()

Reported using DrKonqi