Application: kded4 (4.10.80)
KDE Platform Version: 4.10.80
Qt Version: 4.8.4
Operating System: Linux 3.9.0-7-generic x86_64
Distribution: Ubuntu Saucy Salamander (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
I started my computer and got that error message. It did not happen the first time, but now I decided to report it. There seem to be no duplicates of this bug.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDE-Dienst (kded4), signal: Floating point exception
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5c232817c0 (LWP 5517))]

Thread 6 (Thread 0x7f5c0382f700 (LWP 5520)):
#0  0x00007f5c20af13cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f5c1dbfe394 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5c1dbfe49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5c21f2bd16 in QEventDispatcherGlib::processEvents (this=0x7f5bfc0008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5c21efd86f in QEventLoop::processEvents (this=this@entry=0x7f5c0382ecf0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f5c21efdb65 in QEventLoop::exec (this=this@entry=0x7f5c0382ecf0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f5c21dfcabf in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#7  0x00007f5c21dff15f in QThreadPrivate::start (arg=0x1db0770) at thread/qthread_unix.cpp:338
#8  0x00007f5c11389764 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#9  0x00007f5c1e2d8f8e in start_thread (arg=0x7f5c0382f700) at pthread_create.c:311
#10 0x00007f5c20afde1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7f5c0081a700 (LWP 5527)):
#0  0x00007f5c1dc3db09 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5c1dc3dda9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5c1dbfd4e0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5c1dbfe255 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5c1dbfe49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5c21f2bd16 in QEventDispatcherGlib::processEvents (this=0x7f5bf40008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f5c21efd86f in QEventLoop::processEvents (this=this@entry=0x7f5c00819cb0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f5c21efdb65 in QEventLoop::exec (this=this@entry=0x7f5c00819cb0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f5c21dfcabf in QThread::exec (this=this@entry=0x1ef5f90) at thread/qthread.cpp:542
#9  0x00007f5c21edef93 in QInotifyFileSystemWatcherEngine::run (this=0x1ef5f90) at io/qfilesystemwatcher_inotify.cpp:256
#10 0x00007f5c21dff15f in QThreadPrivate::start (arg=0x1ef5f90) at thread/qthread_unix.cpp:338
#11 0x00007f5c11389764 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#12 0x00007f5c1e2d8f8e in start_thread (arg=0x7f5c0081a700) at pthread_create.c:311
#13 0x00007f5c20afde1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f5bdffff700 (LWP 5539)):
#0  0x00007f5c1dc3dcda in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5c1dc3e159 in g_private_get () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5c1dc230c0 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5c1dbfe48d in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5c21f2bd16 in QEventDispatcherGlib::processEvents (this=0x7f5bd00008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f5c21efd86f in QEventLoop::processEvents (this=this@entry=0x7f5bdfffecb0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f5c21efdb65 in QEventLoop::exec (this=this@entry=0x7f5bdfffecb0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f5c21dfcabf in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#8  0x00007f5c0648afd7 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#9  0x00007f5c21dff15f in QThreadPrivate::start (arg=0x1d70fa0) at thread/qthread_unix.cpp:338
#10 0x00007f5c11389764 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#11 0x00007f5c1e2d8f8e in start_thread (arg=0x7f5bdffff700) at pthread_create.c:311
#12 0x00007f5c20afde1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f5bdf7fe700 (LWP 5540)):
#0  0x00007f5c1dc3dafa in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5c1dc3ddd9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5c1dbfda30 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5c1dbfe2b3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5c1dbfe49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5c21f2bd16 in QEventDispatcherGlib::processEvents (this=0x7f5bd80008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f5c21efd86f in QEventLoop::processEvents (this=this@entry=0x7f5bdf7fdcf0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f5c21efdb65 in QEventLoop::exec (this=this@entry=0x7f5bdf7fdcf0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f5c21dfcabf in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#9  0x00007f5c21dff15f in QThreadPrivate::start (arg=0x1ab6dc0) at thread/qthread_unix.cpp:338
#10 0x00007f5c11389764 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#11 0x00007f5c1e2d8f8e in start_thread (arg=0x7f5bdf7fe700) at pthread_create.c:311
#12 0x00007f5c20afde1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f5bddc08700 (LWP 5548)):
#0  __GI___pthread_mutex_lock (mutex=0x1febd50) at pthread_mutex_lock.c:130
#1  0x00007f5c1dc3ddb1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5c1dbfda49 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5c1dbfe2b3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5c1dbfe7fa in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5bde108ca6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f5c1dc22c25 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f5c11389764 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#8  0x00007f5c1e2d8f8e in start_thread (arg=0x7f5bddc08700) at pthread_create.c:311
#9  0x00007f5c20afde1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f5c232817c0 (LWP 5517)):
[KCrash Handler]
#6  0x00007f5c01778af3 in PowerDevilUPowerBackend::onDeviceChanged (this=0x1fb7720, device=...) at ../../../powerdevil/daemon/backends/upower/powerdevilupowerbackend.cpp:263
#7  0x00007f5c21f12cf8 in QMetaObject::activate (sender=0x1daf670, m=m@entry=0x7f5c019967e0 <UdevQt::Client::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fffcefee320) at kernel/qobject.cpp:3539
#8  0x00007f5c0177f70e in deviceChanged (_t1=..., this=<optimized out>) at ./udevqt.moc:160
#9  UdevQt::ClientPrivate::_uq_monitorReadyRead (this=0x1d9c940, fd=<optimized out>) at ../../../powerdevil/daemon/backends/upower/udevqtclient.cpp:109
#10 0x00007f5c0177f84f in UdevQt::Client::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at ./udevqt.moc:70
#11 0x00007f5c21f12cf8 in QMetaObject::activate (sender=sender@entry=0x21f6eb0, m=m@entry=0x7f5c22261980 <QSocketNotifier::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffcefee490) at kernel/qobject.cpp:3539
#12 0x00007f5c21f5d5ae in QSocketNotifier::activated (this=this@entry=0x21f6eb0, _t1=25) at .moc/release-shared/moc_qsocketnotifier.cpp:103
#13 0x00007f5c21f1ba6b in QSocketNotifier::event (this=0x21f6eb0, e=0x7fffcefee7c0) at kernel/qsocketnotifier.cpp:317
#14 0x00007f5c2129b00c in QApplicationPrivate::notify_helper (this=this@entry=0x1ab7990, receiver=receiver@entry=0x21f6eb0, e=e@entry=0x7fffcefee7c0) at kernel/qapplication.cpp:4567
#15 0x00007f5c212a1680 in QApplication::notify (this=this@entry=0x7fffcefeeb40, receiver=receiver@entry=0x21f6eb0, e=e@entry=0x7fffcefee7c0) at kernel/qapplication.cpp:4353
#16 0x00007f5c22c8220a in KApplication::notify (this=0x7fffcefeeb40, receiver=0x21f6eb0, event=0x7fffcefee7c0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f5c21efeb3d in QCoreApplication::notifyInternal (this=0x7fffcefeeb40, receiver=0x21f6eb0, event=event@entry=0x7fffcefee7c0) at kernel/qcoreapplication.cpp:946
#18 0x00007f5c21f2c830 in sendEvent (event=0x7fffcefee7c0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#19 socketNotifierSourceDispatch (source=0x1ab7030) at kernel/qeventdispatcher_glib.cpp:110
#20 0x00007f5c1dbfe0a6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f5c1dbfe3f8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f5c1dbfe49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f5c21f2bcf5 in QEventDispatcherGlib::processEvents (this=0x19ca670, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#24 0x00007f5c2133cc66 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007f5c21efd86f in QEventLoop::processEvents (this=this@entry=0x7fffcefeea10, flags=...) at kernel/qeventloop.cpp:149
#26 0x00007f5c21efdb65 in QEventLoop::exec (this=this@entry=0x7fffcefeea10, flags=...) at kernel/qeventloop.cpp:204
#27 0x00007f5c21f030db in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#28 0x00007f5c2129955c in QApplication::exec () at kernel/qapplication.cpp:3828
#29 0x00007f5c0c19093b in kdemain (argc=1, argv=0x1b136f0) at ../../kded/kded.cpp:925
#30 0x00000000004083f5 in launch (argc=argc@entry=1, _name=_name@entry=0x40b006 "kded4", args=<optimized out>, args@entry=0x0, cwd=cwd@entry=0x0, envc=envc@entry=0, envs=<optimized out>, envs@entry=0x0, reset_env=reset_env@entry=false, tty=tty@entry=0x0, avoid_loops=avoid_loops@entry=false, startup_id_str=startup_id_str@entry=0x40aeee "0") at ../../kinit/kinit.cpp:738
#31 0x00000000004059a6 in main (argc=4, argv=<optimized out>, envp=0x7fffcefef2a0) at ../../kinit/kinit.cpp:1853

Possible duplicates by query: bug 321690.

Reported using DrKonqi