Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
I was closing a window on my desktop. Firefox to be exact.  It seems it does it randomly. Sometimes I'll be watching a movie with vlc and it will crash. Sometimes I'm just reading a webpage and it will crash. Most of the time it comes right back up, but a few times it won't and give me the crash report assistant

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f71f4d107c0 (LWP 1720))]

Thread 12 (Thread 0x7f71cb47c700 (LWP 1722)):
#0  0x00007f71e96831fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x1d54be8) at pthread_mutex_unlock.c:290
#2  0x00007f71e8b71687 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f71e8b72d81 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f71e8b73429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f71f17d9f3e in QEventDispatcherGlib::processEvents (this=0x1d54130, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f71f17adcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f71f17adef7 in QEventLoop::exec (this=0x7f71cb47bcd0, flags=...) at kernel/qeventloop.cpp:201
#8  0x00007f71f16c527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#9  0x00007f71f1790cbf in QInotifyFileSystemWatcherEngine::run (this=0x1d52a00) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f71f16c7d05 in QThreadPrivate::start (arg=0x1d52a00) at thread/qthread_unix.cpp:331
#11 0x00007f71e5e8c56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0x00007f71e967fefc in start_thread (arg=0x7f71cb47c700) at pthread_create.c:304
#13 0x00007f71f45f489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f71c8c24700 (LWP 1723)):
#0  0x00007f71e8b72904 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f71e8b73258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f71e8b73429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f71f17d9f3e in QEventDispatcherGlib::processEvents (this=0x2482400, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f71f17adcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f71f17adef7 in QEventLoop::exec (this=0x7f71c8c23cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f71f16c527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f71f1790cbf in QInotifyFileSystemWatcherEngine::run (this=0x24816d0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f71f16c7d05 in QThreadPrivate::start (arg=0x24816d0) at thread/qthread_unix.cpp:331
#9  0x00007f71e5e8c56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f71e967fefc in start_thread (arg=0x7f71c8c24700) at pthread_create.c:304
#11 0x00007f71f45f489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f71c1593700 (LWP 1729)):
#0  0x00007f71f45e8773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f71e8b72f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f71e8b73792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f71c2071516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f71e8b982b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f71e5e8c56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007f71e967fefc in start_thread (arg=0x7f71c1593700) at pthread_create.c:304
#7  0x00007f71f45f489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f71bdeec700 (LWP 25652)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f71f16c81ab in wait (time=18446744073709551615, this=0x2357400) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x23387d0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f71ed4c2864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2399880, th=0x40cb6f0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f71ed4c4e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x40cb6f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f71ed4c3ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f71bdeebd20, parent=0x2399880, th=0x40cb6f0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f71ed4c3d5b in ThreadWeaver::Thread::run (this=0x40cb6f0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f71f16c7d05 in QThreadPrivate::start (arg=0x40cb6f0) at thread/qthread_unix.cpp:331
#8  0x00007f71e5e8c56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f71e967fefc in start_thread (arg=0x7f71bdeec700) at pthread_create.c:304
#10 0x00007f71f45f489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f71c1d94700 (LWP 25653)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f71f16c81ab in wait (time=18446744073709551615, this=0x2357400) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x23387d0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f71ed4c2864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2399880, th=0x7f71aa66e2a0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f71ed4c4e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x7f71aa66e2a0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f71ed4c3ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f71c1d93d20, parent=0x2399880, th=0x7f71aa66e2a0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f71ed4c3d5b in ThreadWeaver::Thread::run (this=0x7f71aa66e2a0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f71f16c7d05 in QThreadPrivate::start (arg=0x7f71aa66e2a0) at thread/qthread_unix.cpp:331
#8  0x00007f71e5e8c56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f71e967fefc in start_thread (arg=0x7f71c1d94700) at pthread_create.c:304
#10 0x00007f71f45f489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f71bc638700 (LWP 25654)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f71f16c81ab in wait (time=18446744073709551615, this=0x2357400) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x23387d0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f71ed4c2864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2399880, th=0x7f71aa673c10) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f71ed4c4e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x7f71aa673c10) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f71ed4c4e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x7f71aa673c10) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f71ed4c4e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x7f71aa673c10) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f71ed4c4e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x7f71aa673c10) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007f71ed4c3ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f71bc637d20, parent=0x2399880, th=0x7f71aa673c10) at ../../../threadweaver/Weaver/Thread.cpp:87
#9  0x00007f71ed4c3d5b in ThreadWeaver::Thread::run (this=0x7f71aa673c10) at ../../../threadweaver/Weaver/Thread.cpp:142
#10 0x00007f71f16c7d05 in QThreadPrivate::start (arg=0x7f71aa673c10) at thread/qthread_unix.cpp:331
#11 0x00007f71e5e8c56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0x00007f71e967fefc in start_thread (arg=0x7f71bc638700) at pthread_create.c:304
#13 0x00007f71f45f489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f71c399d700 (LWP 25655)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f71f16c81ab in wait (time=18446744073709551615, this=0x2357400) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x23387d0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f71ed4c2864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2399880, th=0x30494b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f71ed4c4e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x30494b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f71ed4c3ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f71c399cd20, parent=0x2399880, th=0x30494b0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f71ed4c3d5b in ThreadWeaver::Thread::run (this=0x30494b0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f71f16c7d05 in QThreadPrivate::start (arg=0x30494b0) at thread/qthread_unix.cpp:331
#8  0x00007f71e5e8c56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f71e967fefc in start_thread (arg=0x7f71c399d700) at pthread_create.c:304
#10 0x00007f71f45f489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f71b4d41700 (LWP 25656)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f71f16c81ab in wait (time=18446744073709551615, this=0x2357400) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x23387d0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f71ed4c2864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2399880, th=0x2bb9d30) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f71ed4c4e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x2bb9d30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f71ed4c4e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x2bb9d30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f71ed4c3ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f71b4d40d20, parent=0x2399880, th=0x2bb9d30) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f71ed4c3d5b in ThreadWeaver::Thread::run (this=0x2bb9d30) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f71f16c7d05 in QThreadPrivate::start (arg=0x2bb9d30) at thread/qthread_unix.cpp:331
#9  0x00007f71e5e8c56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f71e967fefc in start_thread (arg=0x7f71b4d41700) at pthread_create.c:304
#11 0x00007f71f45f489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f71b43bb700 (LWP 25657)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f71f16c81ab in wait (time=18446744073709551615, this=0x2357400) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x23387d0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f71ed4c2864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2399880, th=0x4c28ed0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f71ed4c4e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x4c28ed0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f71ed4c3ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f71b43bad20, parent=0x2399880, th=0x4c28ed0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f71ed4c3d5b in ThreadWeaver::Thread::run (this=0x4c28ed0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f71f16c7d05 in QThreadPrivate::start (arg=0x4c28ed0) at thread/qthread_unix.cpp:331
#8  0x00007f71e5e8c56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f71e967fefc in start_thread (arg=0x7f71b43bb700) at pthread_create.c:304
#10 0x00007f71f45f489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f71b3bba700 (LWP 25658)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f71f16c81ab in wait (time=18446744073709551615, this=0x2357400) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x23387d0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f71ed4c2864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2399880, th=0x33a1d90) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f71ed4c4e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x33a1d90) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f71ed4c4e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x33a1d90) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f71ed4c3ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f71b3bb9d20, parent=0x2399880, th=0x33a1d90) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f71ed4c3d5b in ThreadWeaver::Thread::run (this=0x33a1d90) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f71f16c7d05 in QThreadPrivate::start (arg=0x33a1d90) at thread/qthread_unix.cpp:331
#9  0x00007f71e5e8c56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f71e967fefc in start_thread (arg=0x7f71b3bba700) at pthread_create.c:304
#11 0x00007f71f45f489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f71b33b9700 (LWP 25659)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f71f16c81ab in wait (time=18446744073709551615, this=0x2357400) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x23387d0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f71ed4c2864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2399880, th=0x302f4b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f71ed4c4e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x302f4b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f71ed4c4e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2338c50, th=0x302f4b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f71ed4c3ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f71b33b8d20, parent=0x2399880, th=0x302f4b0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f71ed4c3d5b in ThreadWeaver::Thread::run (this=0x302f4b0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f71f16c7d05 in QThreadPrivate::start (arg=0x302f4b0) at thread/qthread_unix.cpp:331
#9  0x00007f71e5e8c56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f71e967fefc in start_thread (arg=0x7f71b33b9700) at pthread_create.c:304
#11 0x00007f71f45f489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f71f4d107c0 (LWP 1720)):
[KCrash Handler]
#6  isNull (this=0x4d0000) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#7  operator! (this=0x4d0000) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#8  TaskManager::TaskItem::task (this=0x4ca3700) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007f71d9d70068 in WindowTaskItem::publishIconGeometry (this=0x3609cc0, rect=...) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:130
#10 0x00007f71d9d7fd24 in TaskGroupItem::publishIconGeometry (this=<optimized out>, rect=...) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:1432
#11 0x00007f71d9d7faa5 in publishIconGeometry (this=0x325e600) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:1424
#12 TaskGroupItem::publishIconGeometry (this=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:1416
#13 0x00007f71d9d7eb7c in AbstractTaskItem::timerEvent (this=0x325e600, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#14 0x00007f71f17c5789 in QObject::event (this=0x325e600, e=<optimized out>) at kernel/qobject.cpp:1181
#15 0x00007f71f117d89b in QGraphicsWidget::event (this=0x325e600, event=0x7ffff25b19b0) at graphicsview/qgraphicswidget.cpp:1455
#16 0x00007f71f0b5f424 in notify_helper (e=0x7ffff25b19b0, receiver=0x325e600, this=0x959590) at kernel/qapplication.cpp:4486
#17 QApplicationPrivate::notify_helper (this=0x959590, receiver=0x325e600, e=0x7ffff25b19b0) at kernel/qapplication.cpp:4458
#18 0x00007f71f0b64291 in QApplication::notify (this=0x9451a0, receiver=0x325e600, e=0x7ffff25b19b0) at kernel/qapplication.cpp:4365
#19 0x00007f71f245d126 in KApplication::notify (this=0x9451a0, receiver=0x325e600, event=0x7ffff25b19b0) at ../../kdeui/kernel/kapplication.cpp:311
#20 0x00007f71f17aeafc in QCoreApplication::notifyInternal (this=0x9451a0, receiver=0x325e600, event=0x7ffff25b19b0) at kernel/qcoreapplication.cpp:787
#21 0x00007f71f17dbd62 in sendEvent (event=0x7ffff25b19b0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#22 QTimerInfoList::activateTimers (this=0x960360) at kernel/qeventdispatcher_unix.cpp:603
#23 0x00007f71f17d9514 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#24 0x00007f71e8b72a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f71e8b73258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f71e8b73429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f71f17d9ed6 in QEventDispatcherGlib::processEvents (this=0x89af40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#28 0x00007f71f0c0707e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#29 0x00007f71f17adcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#30 0x00007f71f17adef7 in QEventLoop::exec (this=0x7ffff25b1c40, flags=...) at kernel/qeventloop.cpp:201
#31 0x00007f71f17b2789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#32 0x00007f71f48f31a3 in kdemain (argc=1, argv=0x7ffff25b2028) at ../../../../plasma/desktop/shell/main.cpp:120
#33 0x00007f71f453430d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7ffff25b2028, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffff25b2018) at libc-start.c:226
#34 0x0000000000400671 in _start ()

Possible duplicates by query: bug 291218, bug 291217, bug 291212, bug 291187, bug 291180.

Reported using DrKonqi