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:
When I close a popup of firefox, plasma crash sometimes plasma relauch itself, sometimes no, and many time placement of plasmoid are not restaured

The crash can be reproduced some of the time.

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f16db1d77a0 (LWP 6709))]

Thread 13 (Thread 0x7f16b0a88700 (LWP 6710)):
#0  0x00007f16cfb5a034 in __pthread_mutex_lock (mutex=0x31e0858) at pthread_mutex_lock.c:61
#1  0x00007f16cf04b044 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16cf04b429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f16d7cb1f3e in QEventDispatcherGlib::processEvents (this=0x31e09d0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f16d7c85cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f16d7c85ef7 in QEventLoop::exec (this=0x7f16b0a87db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f16d7b9d27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f16d7c68cbf in QInotifyFileSystemWatcherEngine::run (this=0x31dfcb0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f16d7b9fd05 in QThreadPrivate::start (arg=0x31dfcb0) at thread/qthread_unix.cpp:331
#9  0x00007f16cfb57efc in start_thread (arg=0x7f16b0a88700) at pthread_create.c:304
#10 0x00007f16daacc89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7f16abfff700 (LWP 6711)):
#0  0x00007f16cfb5a034 in __pthread_mutex_lock (mutex=0x33831f8) at pthread_mutex_lock.c:61
#1  0x00007f16cf04a361 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f16cf04ae6a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f16cf04b429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f16d7cb1f3e in QEventDispatcherGlib::processEvents (this=0x3349220, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f16d7c85cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f16d7c85ef7 in QEventLoop::exec (this=0x7f16abffedb0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f16d7b9d27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f16d7c68cbf in QInotifyFileSystemWatcherEngine::run (this=0x3349b90) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f16d7b9fd05 in QThreadPrivate::start (arg=0x3349b90) at thread/qthread_unix.cpp:331
#10 0x00007f16cfb57efc in start_thread (arg=0x7f16abfff700) at pthread_create.c:304
#11 0x00007f16daacc89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f16a6a17700 (LWP 16732)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f16d7ba01ab in wait (time=18446744073709551615, this=0x33fd2d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x33d9820, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f16d399a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x345b440, th=0x5db5290) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f16d399ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x5db5290) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f16d399ce24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x5db5290) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f16d399ce24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x5db5290) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f16d399bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f16a6a16e00, parent=0x345b440, th=0x5db5290) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007f16d399bd5b in ThreadWeaver::Thread::run (this=0x5db5290) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007f16d7b9fd05 in QThreadPrivate::start (arg=0x5db5290) at thread/qthread_unix.cpp:331
#10 0x00007f16cfb57efc in start_thread (arg=0x7f16a6a17700) at pthread_create.c:304
#11 0x00007f16daacc89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f16a868a700 (LWP 16733)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f16d7ba01ab in wait (time=18446744073709551615, this=0x33fd2d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x33d9820, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f16d399a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x345b440, th=0x38566d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f16d399ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x38566d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f16d399bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f16a8689e00, parent=0x345b440, th=0x38566d0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f16d399bd5b in ThreadWeaver::Thread::run (this=0x38566d0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f16d7b9fd05 in QThreadPrivate::start (arg=0x38566d0) at thread/qthread_unix.cpp:331
#8  0x00007f16cfb57efc in start_thread (arg=0x7f16a868a700) at pthread_create.c:304
#9  0x00007f16daacc89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f169bfff700 (LWP 16734)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f16d7ba01ab in wait (time=18446744073709551615, this=0x33fd2d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x33d9820, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f16d399a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x345b440, th=0x49a6c00) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f16d399ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x49a6c00) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f16d399bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f169bffee00, parent=0x345b440, th=0x49a6c00) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f16d399bd5b in ThreadWeaver::Thread::run (this=0x49a6c00) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f16d7b9fd05 in QThreadPrivate::start (arg=0x49a6c00) at thread/qthread_unix.cpp:331
#8  0x00007f16cfb57efc in start_thread (arg=0x7f169bfff700) at pthread_create.c:304
#9  0x00007f16daacc89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f16a33d2700 (LWP 16735)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f16d7ba01ab in wait (time=18446744073709551615, this=0x33fd2d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x33d9820, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f16d399a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x345b440, th=0x378bfe0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f16d399ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x378bfe0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f16d399bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f16a33d1e00, parent=0x345b440, th=0x378bfe0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f16d399bd5b in ThreadWeaver::Thread::run (this=0x378bfe0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f16d7b9fd05 in QThreadPrivate::start (arg=0x378bfe0) at thread/qthread_unix.cpp:331
#8  0x00007f16cfb57efc in start_thread (arg=0x7f16a33d2700) at pthread_create.c:304
#9  0x00007f16daacc89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f16a2bd1700 (LWP 16736)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f16d7ba01ab in wait (time=18446744073709551615, this=0x33fd2d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x33d9820, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f16d399a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x345b440, th=0x4e3a480) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f16d399ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x4e3a480) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f16d399ce24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x4e3a480) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f16d399bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f16a2bd0e00, parent=0x345b440, th=0x4e3a480) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f16d399bd5b in ThreadWeaver::Thread::run (this=0x4e3a480) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f16d7b9fd05 in QThreadPrivate::start (arg=0x4e3a480) at thread/qthread_unix.cpp:331
#9  0x00007f16cfb57efc in start_thread (arg=0x7f16a2bd1700) at pthread_create.c:304
#10 0x00007f16daacc89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f16a23ce700 (LWP 16737)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f16d7ba01ab in wait (time=18446744073709551615, this=0x33fd2d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x33d9820, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f16d399a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x345b440, th=0x3e0f1a0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f16d399ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x3e0f1a0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f16d399bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f16a23cde00, parent=0x345b440, th=0x3e0f1a0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f16d399bd5b in ThreadWeaver::Thread::run (this=0x3e0f1a0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f16d7b9fd05 in QThreadPrivate::start (arg=0x3e0f1a0) at thread/qthread_unix.cpp:331
#8  0x00007f16cfb57efc in start_thread (arg=0x7f16a23ce700) at pthread_create.c:304
#9  0x00007f16daacc89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f16a1bcd700 (LWP 16738)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f16d7ba01ab in wait (time=18446744073709551615, this=0x33fd2d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x33d9820, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f16d399a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x345b440, th=0x7f169c003110) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f16d399ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x7f169c003110) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f16d399ce24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x7f169c003110) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f16d399bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f16a1bcce00, parent=0x345b440, th=0x7f169c003110) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f16d399bd5b in ThreadWeaver::Thread::run (this=0x7f169c003110) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f16d7b9fd05 in QThreadPrivate::start (arg=0x7f169c003110) at thread/qthread_unix.cpp:331
#9  0x00007f16cfb57efc in start_thread (arg=0x7f16a1bcd700) at pthread_create.c:304
#10 0x00007f16daacc89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f16a13cc700 (LWP 16739)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f16d7ba01ab in wait (time=18446744073709551615, this=0x33fd2d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x33d9820, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f16d399a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x345b440, th=0x7f16ac012660) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f16d399ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x7f16ac012660) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f16d399bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f16a13cbe00, parent=0x345b440, th=0x7f16ac012660) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f16d399bd5b in ThreadWeaver::Thread::run (this=0x7f16ac012660) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f16d7b9fd05 in QThreadPrivate::start (arg=0x7f16ac012660) at thread/qthread_unix.cpp:331
#8  0x00007f16cfb57efc in start_thread (arg=0x7f16a13cc700) at pthread_create.c:304
#9  0x00007f16daacc89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f16a0bcb700 (LWP 16740)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f16d7ba01ab in wait (time=18446744073709551615, this=0x33fd2d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x33d9820, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f16d399a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x345b440, th=0x7f16ac018170) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f16d399ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x7f16ac018170) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f16d399bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f16a0bcae00, parent=0x345b440, th=0x7f16ac018170) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f16d399bd5b in ThreadWeaver::Thread::run (this=0x7f16ac018170) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f16d7b9fd05 in QThreadPrivate::start (arg=0x7f16ac018170) at thread/qthread_unix.cpp:331
#8  0x00007f16cfb57efc in start_thread (arg=0x7f16a0bcb700) at pthread_create.c:304
#9  0x00007f16daacc89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f169b7fe700 (LWP 16741)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f16d7ba01ab in wait (time=18446744073709551615, this=0x33fd2d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x33d9820, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f16d399a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x345b440, th=0x2f81070) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f16d399ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x33d9bd0, th=0x2f81070) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f16d399bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f169b7fde00, parent=0x345b440, th=0x2f81070) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f16d399bd5b in ThreadWeaver::Thread::run (this=0x2f81070) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f16d7b9fd05 in QThreadPrivate::start (arg=0x2f81070) at thread/qthread_unix.cpp:331
#8  0x00007f16cfb57efc in start_thread (arg=0x7f169b7fe700) at pthread_create.c:304
#9  0x00007f16daacc89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f16db1d77a0 (LWP 6709)):
[KCrash Handler]
#6  isNull (this=0x3200310000) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#7  operator! (this=0x3200310000) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#8  TaskManager::TaskItem::task (this=0x491b520) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007f16ba841112 in WindowTaskItem::publishIconGeometry (this=0x520c1e0) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#10 0x00007f16ba84fb7c in AbstractTaskItem::timerEvent (this=0x520c1e0, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#11 0x00007f16d7c9d789 in QObject::event (this=0x520c1e0, e=<optimized out>) at kernel/qobject.cpp:1181
#12 0x00007f16d765589b in QGraphicsWidget::event (this=0x520c1e0, event=0x7fff78564710) at graphicsview/qgraphicswidget.cpp:1455
#13 0x00007f16d7037424 in notify_helper (e=0x7fff78564710, receiver=0x520c1e0, this=0x24dfdb0) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x24dfdb0, receiver=0x520c1e0, e=0x7fff78564710) at kernel/qapplication.cpp:4458
#15 0x00007f16d703c291 in QApplication::notify (this=0x24d9d90, receiver=0x520c1e0, e=0x7fff78564710) at kernel/qapplication.cpp:4365
#16 0x00007f16d8935126 in KApplication::notify (this=0x24d9d90, receiver=0x520c1e0, event=0x7fff78564710) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f16d7c86afc in QCoreApplication::notifyInternal (this=0x24d9d90, receiver=0x520c1e0, event=0x7fff78564710) at kernel/qcoreapplication.cpp:787
#18 0x00007f16d7cb3d62 in sendEvent (event=0x7fff78564710, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QTimerInfoList::activateTimers (this=0x24e35b0) at kernel/qeventdispatcher_unix.cpp:603
#20 0x00007f16d7cb1538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#21 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#22 0x00007f16cf04aa5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f16cf04b258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f16cf04b429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f16d7cb1ed6 in QEventDispatcherGlib::processEvents (this=0x245ef40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#26 0x00007f16d70df07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007f16d7c85cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007f16d7c85ef7 in QEventLoop::exec (this=0x7fff785649a0, flags=...) at kernel/qeventloop.cpp:201
#29 0x00007f16d7c8a789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0x00007f16dadcb1a3 in kdemain (argc=1, argv=0x7fff78564d88) at ../../../../plasma/desktop/shell/main.cpp:120
#31 0x00007f16daa0c30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff78564d88, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff78564d78) at libc-start.c:226
#32 0x0000000000400671 in _start ()

Possible duplicates by query: bug 290761, bug 290751, bug 290741, bug 290713, bug 290700.

Reported using DrKonqi