.
Thread 5 (process 4664):
#0  0x00007f2a18226742 in select () from /lib/libc.so.6
#1  0x00007f2a18d97e46 in ?? () from /usr/lib/libQtCore.so.4
#2  0x00007f2a18cd08e2 in ?? () from /usr/lib/libQtCore.so.4
#3  0x00007f2a156b33ba in start_thread () from /lib/libpthread.so.0
#4  0x00007f2a1822dfcd in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()
.
Thread 4 (process 4666):
#0  0x00007f2a156b72e9 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007f2a18cd18c9 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#2  0x00007f2a01b10d4e in ?? () from /usr/lib/kde4/plasma_wallpaper_image.so
#3  0x00007f2a18cd08e2 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007f2a156b33ba in start_thread () from /lib/libpthread.so.0
#5  0x00007f2a1822dfcd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()
.
Thread 3 (process 4663):
#0  0x00007f2a156b72e9 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007f2a18cd18c9 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#2  0x00007f2a1c48148c in ?? () from /usr/lib/libQtNetwork.so.4
#3  0x00007f2a18cd08e2 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007f2a156b33ba in start_thread () from /lib/libpthread.so.0
#5  0x00007f2a1822dfcd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()
.
Thread 2 (process 4662):
#0  0x00007f2a1bb1b7fc in ?? () from /usr/lib/libkdeui.so.5
#1  0x00007f2a1bb14cbb in ?? () from /usr/lib/libkdeui.so.5
#2  0x00007f2a1817e6ed in exit () from /lib/libc.so.6
#3  0x00007f2a1955af98 in ?? () from /usr/lib/libQtGui.so.4
#4  0x00007f2a1bbb0018 in KApplication::xioErrhandler ()
   from /usr/lib/libkdeui.so.5
#5  0x00007f2a1ac096e4 in _XIOError () from /usr/lib/libX11.so.6
#6  0x00007f2a1ac10a1f in ?? () from /usr/lib/libX11.so.6
#7  0x00007f2a1ac11345 in _XEventsQueued () from /usr/lib/libX11.so.6
#8  0x00007f2a1abf9ed3 in XEventsQueued () from /usr/lib/libX11.so.6
#9  0x00007f2a19595edc in ?? () from /usr/lib/libQtGui.so.4
#10 0x00007f2a13a85e62 in g_main_context_check ()
   from /usr/lib/libglib-2.0.so.0
#11 0x00007f2a13a86759 in ?? () from /usr/lib/libglib-2.0.so.0
#12 0x00007f2a13a86a0c in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
#13 0x00007f2a18de2d9f in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#14 0x00007f2a19595d1f in ?? () from /usr/lib/libQtGui.so.4
#15 0x00007f2a18db7f42 in QEventLoop::processEvents ()
   from /usr/lib/libQtCore.so.4
#16 0x00007f2a18db830d in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#17 0x00007f2a18dba5d4 in QCoreApplication::exec ()
   from /usr/lib/libQtCore.so.4
#18 0x00007f2a1d4f7e5b in kdemain () from /usr/lib/libkdeinit4_plasma.so
#19 0x00007f2a181665a6 in __libc_start_main () from /lib/libc.so.6
#20 0x00000000004007c9 in _start ()
.
Thread 1 (process 13223):
#0  0x00007f2a1817afb5 in raise () from /lib/libc.so.6
#1  0x00007f2a1bc164e7 in KCrash::defaultCrashHandler ()
   from /usr/lib/libkdeui.so.5
#2  <signal handler called>
#3  0x00007f2a1b5d3d5e in ?? () from /usr/lib/libkdecore.so.5
#4  0x00007f2a1b5ded3c in KConfigGroup::readEntry ()
   from /usr/lib/libkdecore.so.5
#5  0x00007f29eea29628 in ?? ()
#6  0x00007f29eec316e0 in ?? ()
#7  0x00007f29f5a45f30 in ?? ()
#8  0x00007f29f5a45e40 in ?? ()
#9  0x00007f29f5a45f50 in ?? ()
#10 0x00007f2a156bd378 in __PRETTY_FUNCTION__.6864 ()
   from /lib/libpthread.so.0
#11 0x0000000000000000 in ?? ()