How did it happen?
Firstly, I ran sudo dolphin, then transfered large folders. After transfer, I closed dolphin.
Crash happen, after I opened dolphin normally, after what happened above.
Now, desktop is black except the default panel, which is completely white. After a short time, the default panel disappeared.
ALT+tab shows all programs except Chrome.
Dolphin shows images preview, but Gwenview says that it can't open image of type ...
I can open PDF with dolphin.

I hope KDE isn't corrupted. Isn't there any way to return it to normal without erasing account or reinstalling the ddistribution? All of my passwords will be lost again.

This's a copy of the report:
Application: plasmashell (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-18-generic x86_64
Distribution: Ubuntu 15.04
-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fae7c7807c0 (LWP 1574))]

Thread 26 (Thread 0x7fae684ea700 (LWP 1586)):
#0  0x00007fae7752d8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fae79a9ab72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fae79a9c64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fae6a831099 in QXcbEventReader::run (this=0x17e3340) at qxcbconnection.cpp:1105
#4  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x17e3340) at thread/qthread_unix.cpp:337
#5  0x00007fae76db46aa in start_thread (arg=0x7fae684ea700) at pthread_create.c:333
#6  0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7fae661f1700 (LWP 1596)):
#0  0x00007fae73c7e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fae73c39409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fae580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fae661f0de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x18a8ce0) at thread/qthread_unix.cpp:337
#9  0x00007fae76db46aa in start_thread (arg=0x7fae661f1700) at pthread_create.c:333
#10 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7fae56d8c700 (LWP 1606)):
#0  __GI___pthread_getspecific (key=3) at pthread_getspecific.c:57
#1  0x00007fae73c60e00 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c38ddc in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae73c39d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fae500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fae56d8bde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x2188360) at thread/qthread_unix.cpp:337
#10 0x00007fae76db46aa in start_thread (arg=0x7fae56d8c700) at pthread_create.c:333
#11 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7fae4ffff700 (LWP 1621)):
#0  0x00007fae73c39814 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fae73c39e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fae440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fae4fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x22d21a0) at thread/qthread_unix.cpp:337
#8  0x00007fae76db46aa in start_thread (arg=0x7fae4ffff700) at pthread_create.c:333
#9  0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7fae4effe700 (LWP 1624)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:57
#1  0x00007fae7752d8d2 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007fae73c39ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fae3c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fae4effdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x23e6ec0) at thread/qthread_unix.cpp:337
#9  0x00007fae76db46aa in start_thread (arg=0x7fae4effe700) at pthread_create.c:333
#10 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7fae4dffd700 (LWP 1625)):
#0  0x00007fae7752d8e1 in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fae73c39ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fae400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fae4dffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x24b8c70) at thread/qthread_unix.cpp:337
#8  0x00007fae76db46aa in start_thread (arg=0x7fae4dffd700) at pthread_create.c:333
#9  0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7fae4cffc700 (LWP 1626)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007fae7752d8d2 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007fae73c39ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fae340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fae4cffbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x25a05d0) at thread/qthread_unix.cpp:337
#9  0x00007fae76db46aa in start_thread (arg=0x7fae4cffc700) at pthread_create.c:333
#10 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7fae3b7ff700 (LWP 1627)):
#0  0x00007fae73c7e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fae73c398cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fae300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fae3b7fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x2692ae0) at thread/qthread_unix.cpp:337
#9  0x00007fae76db46aa in start_thread (arg=0x7fae3b7ff700) at pthread_create.c:333
#10 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7fae3a7fe700 (LWP 1628)):
#0  0x00007fae7752d8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fae73c39ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fae280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fae3a7fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x27835c0) at thread/qthread_unix.cpp:337
#8  0x00007fae76db46aa in start_thread (arg=0x7fae3a7fe700) at pthread_create.c:333
#9  0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7fae397fd700 (LWP 1629)):
#0  0x00007fae73c7e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fae73c392d7 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fae2c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fae397fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x28aca30) at thread/qthread_unix.cpp:337
#9  0x00007fae76db46aa in start_thread (arg=0x7fae397fd700) at pthread_create.c:333
#10 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7fae27fff700 (LWP 1630)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fae7b8b8644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fae7b8b8689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fae76db46aa in start_thread (arg=0x7fae27fff700) at pthread_create.c:333
#4  0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7fada77fe700 (LWP 1631)):
#0  0x00007fae73c7e789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fae73c38f38 in g_main_context_release () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39e76 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fada00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fada77fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x2979d40) at thread/qthread_unix.cpp:337
#9  0x00007fae76db46aa in start_thread (arg=0x7fada77fe700) at pthread_create.c:333
#10 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7fada62df700 (LWP 1642)):
#0  0x00007fae73c3984a in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fae73c39e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fada62dede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x2b39320) at thread/qthread_unix.cpp:337
#8  0x00007fae76db46aa in start_thread (arg=0x7fada62df700) at pthread_create.c:333
#9  0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7fada4a29700 (LWP 1650)):
#0  0x00007ffd455dbc58 in clock_gettime ()
#1  0x00007fae7754738d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007fae77c64cb6 in qt_clock_gettime (ts=0x7fada4a28af0, 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  0x00007fae77e43639 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fad9c0030d0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007fae77e43ba5 in QTimerInfoList::timerWait (this=0x7fad9c0030d0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007fae77e4503e in timerSourcePrepareHelper (timeout=0x7fada4a28bc4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7fada4a28bc4) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007fae73c393fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fae73c39de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad9c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fada4a28d90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007fae7c421b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007fae77baeb0e in QThreadPrivate::start (arg=0x22fdf00) at thread/qthread_unix.cpp:337
#17 0x00007fae76db46aa in start_thread (arg=0x7fada4a29700) at pthread_create.c:333
#18 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7fad97fff700 (LWP 1653)):
#0  0x00007fae775294a1 in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fae73c7d2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c3996c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae73c39e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fad97ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x2cb3da0) at thread/qthread_unix.cpp:337
#10 0x00007fae76db46aa in start_thread (arg=0x7fad97fff700) at pthread_create.c:333
#11 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fad94b8c700 (LWP 1666)):
#0  0x00007fae7752949d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fae73c7d2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c3996c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae73c39e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fad94b8bde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x30ab0a0) at thread/qthread_unix.cpp:337
#10 0x00007fae76db46aa in start_thread (arg=0x7fad94b8c700) at pthread_create.c:333
#11 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fad8f7ff700 (LWP 1667)):
#0  0x00007fae7752d8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fae73c39ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fad8f7fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x316a290) at thread/qthread_unix.cpp:337
#8  0x00007fae76db46aa in start_thread (arg=0x7fad8f7ff700) at pthread_create.c:333
#9  0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fad8e7fe700 (LWP 1668)):
#0  0x00007fae7752d8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fae73c39ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad7c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fad8e7fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x3290190) at thread/qthread_unix.cpp:337
#8  0x00007fae76db46aa in start_thread (arg=0x7fad8e7fe700) at pthread_create.c:333
#9  0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fad8d7fd700 (LWP 1670)):
#0  0x00007fae77e4516b in socketNotifierSourceCheck (source=0x7fad80002a00) at kernel/qeventdispatcher_glib.cpp:90
#1  0x00007fae73c398c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fad8d7fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x3361480) at thread/qthread_unix.cpp:337
#9  0x00007fae76db46aa in start_thread (arg=0x7fad8d7fd700) at pthread_create.c:333
#10 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fad7bfff700 (LWP 1671)):
#0  0x00007fae73c36ec7 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fae73c3939b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fad7bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x34489e0) at thread/qthread_unix.cpp:337
#9  0x00007fae76db46aa in start_thread (arg=0x7fad7bfff700) at pthread_create.c:333
#10 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fad7affe700 (LWP 1672)):
#0  0x00007fae73c7e7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fae73c39eb1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad6c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fad7affdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x354cee0) at thread/qthread_unix.cpp:337
#8  0x00007fae76db46aa in start_thread (arg=0x7fad7affe700) at pthread_create.c:333
#9  0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fad79ffd700 (LWP 1673)):
#0  0x00007fae7752d8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fae73c39ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fad79ffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x366fd00) at thread/qthread_unix.cpp:337
#8  0x00007fae76db46aa in start_thread (arg=0x7fad79ffd700) at pthread_create.c:333
#9  0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fad67d53700 (LWP 1750)):
#0  0x00007fae7752949d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fae73c7d2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c3996c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae73c39e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fad67d52dc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007fad6a00bcf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#9  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x5355a60) at thread/qthread_unix.cpp:337
#10 0x00007fae76db46aa in start_thread (arg=0x7fad67d53700) at pthread_create.c:333
#11 0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fad66e94700 (LWP 1772)):
#0  0x00007fae73c38dd0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fae73c39d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fad66e93de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x5374940) at thread/qthread_unix.cpp:337
#8  0x00007fae76db46aa in start_thread (arg=0x7fad66e94700) at pthread_create.c:333
#9  0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fad5f18a700 (LWP 2629)):
#0  0x00007fae7752d8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fae73c39ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fae77e45c6c in QEventDispatcherGlib::processEvents (this=0x7fad540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7fad5f189de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fae77ba9b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fae79937f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fae77baeb0e in QThreadPrivate::start (arg=0x5b76580) at thread/qthread_unix.cpp:337
#8  0x00007fae76db46aa in start_thread (arg=0x7fad5f18a700) at pthread_create.c:333
#9  0x00007fae77538eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fae7c7807c0 (LWP 1574)):
[KCrash Handler]
#6  QDataStream::operator>> (this=this@entry=0x0, i=@0x7ffd455a8434: 32686) at io/qdatastream.cpp:646
#7  0x00007fae79420a25 in KServiceGroupFactory::KServiceGroupFactory (this=0x61bd240) at ../../src/services/kservicegroupfactory.cpp:39
#8  0x00007fae79420ba2 in self (this=<optimized out>) at ../../src/sycoca/ksycocafactory_p.h:212
#9  KServiceGroupFactory::self () at ../../src/services/kservicegroupfactory.cpp:59
#10 0x00007fae7941c0c0 in KServiceGroup::root () at ../../src/services/kservicegroup.cpp:661
#11 0x00007fae7941c195 in KServiceGroup::group (relPath=...) at ../../src/services/kservicegroup.cpp:668
#12 0x00007fad96dc11a2 in Kickoff::ApplicationModelPrivate::fillNode (this=0x6876b60, _relPath=..., node=0x5ffef90) at ../../../applets/kickoff/core/applicationmodel.cpp:162
#13 0x00007fad96dc3dfd in Kickoff::ApplicationModel::reloadMenu (this=this@entry=0x5ff0110) at ../../../applets/kickoff/core/applicationmodel.cpp:550
#14 0x00007fad96dc4dde in Kickoff::ApplicationModel::checkSycocaChange (this=0x5ff0110, changes=...) at ../../../applets/kickoff/core/applicationmodel.cpp:557
#15 0x00007fae77e1d9c9 in QMetaObject::activate (sender=sender@entry=0x188a1c0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffd455a8880) at kernel/qobject.cpp:3716
#16 0x00007fae77e1e057 in QMetaObject::activate (sender=sender@entry=0x188a1c0, m=m@entry=0x7fae7965cbc0 <KSycoca::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffd455a8880) at kernel/qobject.cpp:3582
#17 0x00007fae79449ba5 in KSycoca::databaseChanged (this=this@entry=0x188a1c0, _t1=...) at moc_ksycoca.cpp:148
#18 0x00007fae7943831c in KSycoca::notifyDatabaseChanged (this=0x188a1c0, changeList=...) at ../../src/sycoca/ksycoca.cpp:374
#19 0x00007fae7944a2c3 in KSycoca::qt_metacall (this=0x188a1c0, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0x7ffd455a8a30) at moc_ksycoca.cpp:128
#20 0x00007fae7c8af5c7 in QDBusConnectionPrivate::deliverCall (this=0x0, object=0x7ffd455a8434, msg=..., metaTypes=..., slotIdx=48467104) at qdbusintegrator.cpp:993
#21 0x00007fae77e1e73a in QObject::event (this=0x188a1c0, e=<optimized out>) at kernel/qobject.cpp:1245
#22 0x00007fae786f6b2c in QApplicationPrivate::notify_helper (this=0x17cd420, receiver=0x188a1c0, e=0x6f70340) at kernel/qapplication.cpp:3720
#23 0x00007fae786fc000 in QApplication::notify (this=0x7ffd455a9160, receiver=0x188a1c0, e=0x6f70340) at kernel/qapplication.cpp:3503
#24 0x00007fae77decc2b in QCoreApplication::notifyInternal (this=0x7ffd455a9160, receiver=0x188a1c0, event=event@entry=0x6f70340) at kernel/qcoreapplication.cpp:935
#25 0x00007fae77deec9b in sendEvent (event=0x6f70340, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#26 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x17c2f00) at kernel/qcoreapplication.cpp:1552
#27 0x00007fae77def298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#28 0x00007fae77e45843 in postEventSourceDispatch (s=0x17ff900) at kernel/qeventdispatcher_glib.cpp:271
#29 0x00007fae73c39c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007fae73c39f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007fae73c39fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007fae77e45c57 in QEventDispatcherGlib::processEvents (this=0x1807070, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#33 0x00007fae77dea3e2 in QEventLoop::exec (this=this@entry=0x7ffd455a8fe0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#34 0x00007fae77df202c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#35 0x00007fae7813131c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#36 0x00007fae786f27a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#37 0x000000000042fd9b in main (argc=2, argv=<optimized out>) at ../../shell/main.cpp:158

Possible duplicates by query: bug 347969, bug 347810, bug 347294, bug 347293, bug 346310.

Reported using DrKonqi