Application: plasma-desktop (4.11.2)
KDE Platform Version: 4.11.2
Qt Version: 4.8.4
Operating System: Linux 3.11.0-13-generic x86_64
Distribution: Ubuntu 13.10

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

Crashes starts to happen after upgrade to Kubuntu 13.10. After some time of inactivity, when screensaver kicks in, KDE reportsa crash. Not always. Blank screen screensaver used.

-- Backtrace:
Application: Shell plochy Plasma (plasma-desktop), signal: Floating point exception
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe2043187c0 (LWP 2027))]

Thread 5 (Thread 0x7fe1e124e700 (LWP 2028)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fe1fcfb606b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fe1fcfb60a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fe1f766ff6e in start_thread (arg=0x7fe1e124e700) at pthread_create.c:311
#4  0x00007fe203c039cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7fe153368700 (LWP 2032)):
#0  0x00007fe203bf6f7d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fe1f6f656a4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe1f6f657ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe2007cfa76 in QEventDispatcherGlib::processEvents (this=0x7fe14c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fe2007a15ef in QEventLoop::processEvents (this=this@entry=0x7fe153367d70, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fe2007a18e5 in QEventLoop::exec (this=this@entry=0x7fe153367d70, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fe2006a088f in QThread::exec (this=this@entry=0x2588250) at thread/qthread.cpp:542
#7  0x00007fe200782d13 in QInotifyFileSystemWatcherEngine::run (this=0x2588250) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007fe2006a2f2f in QThreadPrivate::start (arg=0x2588250) at thread/qthread_unix.cpp:338
#9  0x00007fe1f766ff6e in start_thread (arg=0x7fe153368700) at pthread_create.c:311
#10 0x00007fe203c039cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7fe151912700 (LWP 2035)):
#0  0x00007fe1f6fa50ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fe1f6fa53c9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe1f6f65699 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe1f6f657ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe2007cfa76 in QEventDispatcherGlib::processEvents (this=0x7fe1480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fe2007a15ef in QEventLoop::processEvents (this=this@entry=0x7fe151911d70, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fe2007a18e5 in QEventLoop::exec (this=this@entry=0x7fe151911d70, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fe2006a088f in QThread::exec (this=this@entry=0x26145d0) at thread/qthread.cpp:542
#8  0x00007fe200782d13 in QInotifyFileSystemWatcherEngine::run (this=0x26145d0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007fe2006a2f2f in QThreadPrivate::start (arg=0x26145d0) at thread/qthread_unix.cpp:338
#10 0x00007fe1f766ff6e in start_thread (arg=0x7fe151912700) at pthread_create.c:311
#11 0x00007fe203c039cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7fe143724700 (LWP 2037)):
#0  0x00007fe1f6fa50ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fe1f6fa5399 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe1f6f647f0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe1f6f65565 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe1f6f657ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe2007cfa76 in QEventDispatcherGlib::processEvents (this=0x7fe1380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fe2007a15ef in QEventLoop::processEvents (this=this@entry=0x7fe143723d70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fe2007a18e5 in QEventLoop::exec (this=this@entry=0x7fe143723d70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fe2006a088f in QThread::exec (this=this@entry=0x2a529d0) at thread/qthread.cpp:542
#9  0x00007fe200782d13 in QInotifyFileSystemWatcherEngine::run (this=0x2a529d0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007fe2006a2f2f in QThreadPrivate::start (arg=0x2a529d0) at thread/qthread_unix.cpp:338
#11 0x00007fe1f766ff6e in start_thread (arg=0x7fe143724700) at pthread_create.c:311
#12 0x00007fe203c039cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fe2043187c0 (LWP 2027)):
[KCrash Handler]
#6  Image::nextSlide (this=0x1efa650) at ../../../../../plasma/generic/wallpapers/image/image.cpp:788
#7  0x00007fe1e56fa6a5 in Image::qt_static_metacall (_o=0x1efa650, _id=0, _a=0x0, _c=<optimized out>) at ./image.moc:127
#8  0x00007fe2007b6a58 in QMetaObject::activate (sender=0x1efa808, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#9  0x00007fe2007babe1 in QObject::event (this=0x1efa808, e=<optimized out>) at kernel/qobject.cpp:1156
#10 0x00007fe1ffb3fdfc in QApplicationPrivate::notify_helper (this=this@entry=0xf8d9e0, receiver=receiver@entry=0x1efa808, e=e@entry=0x7fff58876c30) at kernel/qapplication.cpp:4567
#11 0x00007fe1ffb46470 in QApplication::notify (this=this@entry=0xf88d00, receiver=receiver@entry=0x1efa808, e=e@entry=0x7fff58876c30) at kernel/qapplication.cpp:4353
#12 0x00007fe201466a6a in KApplication::notify (this=0xf88d00, receiver=0x1efa808, event=0x7fff58876c30) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007fe2007a28bd in QCoreApplication::notifyInternal (this=0xf88d00, receiver=0x1efa808, event=0x7fff58876c30) at kernel/qcoreapplication.cpp:946
#14 0x00007fe2007d2403 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QTimerInfoList::activateTimers (this=0xf8f970) at kernel/qeventdispatcher_unix.cpp:622
#16 0x00007fe2007cf7d9 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#17 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:233
#18 0x00007fe1f6f653b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fe1f6f65708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fe1f6f657ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fe2007cfa55 in QEventDispatcherGlib::processEvents (this=0xee8ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#22 0x00007fe1ffbe19d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#23 0x00007fe2007a15ef in QEventLoop::processEvents (this=this@entry=0x7fff58876eb0, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007fe2007a18e5 in QEventLoop::exec (this=this@entry=0x7fff58876eb0, flags=...) at kernel/qeventloop.cpp:204
#25 0x00007fe2007a6e5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#26 0x00007fe1ffb3e34c in QApplication::exec () at kernel/qapplication.cpp:3828
#27 0x00007fe203f0d27c in kdemain (argc=1, argv=0x7fff58877108) at ../../../../plasma/desktop/shell/main.cpp:126
#28 0x00007fe203b2ade5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fff58877108, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff588770f8) at libc-start.c:260
#29 0x000000000040070e in _start ()

Possible duplicates by query: bug 327983, bug 326717, bug 326235, bug 325479, bug 325410.

Reported using DrKonqi