Application: plasma-desktop (4.11.11)
KDE Platform Version: 4.14.2
Qt Version: 4.8.6
Operating System: Linux 3.13.0-24-generic x86_64
Distribution: Linux Mint 17.1 Rebecca

-- Information about the crash:
- What I was doing when the application crashed: I had two Okular windows opened, I wanted to close one of them, I right-clicked on the taskbar and when I attempted to close it, Plasma crashed and restarted. I tried to repeat the crash but I couldn't...

The crash does not seem to be reproducible.

-- Backtrace:
Application: Shell de escritorio Plasma (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f52aadc07c0 (LWP 2081))]

Thread 5 (Thread 0x7f52812b9700 (LWP 2086)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f52a3a72ffb in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f52a3a73039 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f529e5e9182 in start_thread (arg=0x7f52812b9700) at pthread_create.c:312
#4  0x00007f52aa6b447d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f51fb93e700 (LWP 2089)):
#0  0x00007f52aa6a582d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f529df18c10 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f529ded7b14 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f529ded7f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f529ded80ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f52a72887be in QEventDispatcherGlib::processEvents (this=0x7f51f40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f52a725a0af in QEventLoop::processEvents (this=this@entry=0x7f51fb93dde0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f52a725a3a5 in QEventLoop::exec (this=this@entry=0x7f51fb93dde0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f52a7156c5f in QThread::exec (this=this@entry=0x1522690) at thread/qthread.cpp:537
#9  0x00007f52a723b823 in QInotifyFileSystemWatcherEngine::run (this=0x1522690) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f52a715932f in QThreadPrivate::start (arg=0x1522690) at thread/qthread_unix.cpp:349
#11 0x00007f529e5e9182 in start_thread (arg=0x7f51fb93e700) at pthread_create.c:312
#12 0x00007f52aa6b447d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f51f944b700 (LWP 2092)):
#0  0x00007f52aa6a582d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f529df18c10 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f529ded7b14 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f529ded7f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f529ded830a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f51f9f47336 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f529defcf05 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f529e5e9182 in start_thread (arg=0x7f51f944b700) at pthread_create.c:312
#8  0x00007f52aa6b447d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f51ebfff700 (LWP 2093)):
#0  0x00007f529df1961a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f529df199a9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f529ded7680 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f529ded7f03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f529ded80ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f52a72887be in QEventDispatcherGlib::processEvents (this=0x7f51e40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f52a725a0af in QEventLoop::processEvents (this=this@entry=0x7f51ebffede0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f52a725a3a5 in QEventLoop::exec (this=this@entry=0x7f51ebffede0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f52a7156c5f in QThread::exec (this=this@entry=0x1ecb750) at thread/qthread.cpp:537
#9  0x00007f52a723b823 in QInotifyFileSystemWatcherEngine::run (this=0x1ecb750) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f52a715932f in QThreadPrivate::start (arg=0x1ecb750) at thread/qthread_unix.cpp:349
#11 0x00007f529e5e9182 in start_thread (arg=0x7f51ebfff700) at pthread_create.c:312
#12 0x00007f52aa6b447d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f52aadc07c0 (LWP 2081)):
[KCrash Handler]
#6  0x00007f52831417ce in TaskManager::TasksModel::rowCount (this=0x3def230, parent=...) at ../../../libs/taskmanager/tasksmodel.cpp:329
#7  0x00007f52a8e8ab3a in QDeclarativeVisualDataModel::_q_layoutChanged (this=0x1aa55c0) at graphicsitems/qdeclarativevisualitemmodel.cpp:1398
#8  0x00007f52a8fb57ed in QDeclarativeVisualDataModel::qt_static_metacall (_o=0x3def230, _c=27940824, _id=0, _a=0x2) at .moc/release-shared/moc_qdeclarativevisualitemmodel_p.cpp:406
#9  0x00007f52a726f87a in QMetaObject::activate (sender=sender@entry=0x192aa20, m=m@entry=0x7f52a75bf6a0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#10 0x00007f52a72b95a3 in QAbstractItemModel::layoutChanged (this=this@entry=0x192aa20) at .moc/release-shared/moc_qabstractitemmodel.cpp:176
#11 0x00007f52a7254a89 in QAbstractItemModel::endMoveRows (this=0x192aa20) at kernel/qabstractitemmodel.cpp:2673
#12 0x00007f5283142c9c in itemMoved (item=<optimized out>, this=<optimized out>) at ../../../libs/taskmanager/tasksmodel.cpp:524
#13 TaskManager::TasksModel::qt_static_metacall (_o=0x3def230, _id=27940824, _a=0x7fff713b1f50, _c=<optimized out>) at ./tasksmodel.moc:135
#14 0x00007f52a726f87a in QMetaObject::activate (sender=sender@entry=0x16724b0, m=m@entry=0x7f528335f1e0 <TaskManager::TaskGroup::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x7fff713b1f50) at kernel/qobject.cpp:3539
#15 0x00007f5283135b22 in TaskManager::TaskGroup::itemPositionChanged (this=this@entry=0x16724b0, _t1=_t1@entry=0x2c8a6f0) at ./taskgroup.moc:220
#16 0x00007f5283138719 in TaskManager::TaskGroup::moveItem (this=0x16724b0, oldIndex=oldIndex@entry=2, newIndex=newIndex@entry=1) at ../../../libs/taskmanager/taskgroup.cpp:707
#17 0x00007f5283118c8a in TaskManager::AbstractSortingStrategy::check (this=<optimized out>, itemToCheck=<optimized out>) at ../../../libs/taskmanager/abstractsortingstrategy.cpp:148
#18 0x00007f528311b7ee in TaskManager::GroupManagerPrivate::addTask (this=this@entry=0x19b0020, task=0x2f2f1c0) at ../../../libs/taskmanager/groupmanager.cpp:360
#19 0x00007f528311ba87 in TaskManager::GroupManagerPrivate::actuallyReloadTasks (this=0x19b0020) at ../../../libs/taskmanager/groupmanager.cpp:202
#20 0x00007f528311e3c1 in TaskManager::GroupManager::setGroupingStrategy (this=0x1686080, strategy=TaskManager::GroupManager::NoGrouping) at ../../../libs/taskmanager/groupmanager.cpp:1391
#21 0x00007f528311e71f in TaskManager::GroupManagerPrivate::actuallyCheckIfFull (this=0x19b0020) at ../../../libs/taskmanager/groupmanager.cpp:1232
#22 0x00007f528311f6b9 in TaskManager::GroupManager::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at ./groupmanager.moc:90
#23 0x00007f52a726f87a in QMetaObject::activate (sender=0x19b0098, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#24 0x00007f52a7273a31 in QObject::event (this=0x19b0098, e=<optimized out>) at kernel/qobject.cpp:1156
#25 0x00007f52a65f4e2c in QApplicationPrivate::notify_helper (this=this@entry=0x14ddb70, receiver=receiver@entry=0x19b0098, e=e@entry=0x7fff713b25b0) at kernel/qapplication.cpp:4567
#26 0x00007f52a65fb4a0 in QApplication::notify (this=this@entry=0x14d1040, receiver=receiver@entry=0x19b0098, e=e@entry=0x7fff713b25b0) at kernel/qapplication.cpp:4353
#27 0x00007f52a7f20cca in KApplication::notify (this=0x14d1040, receiver=0x19b0098, event=0x7fff713b25b0) at ../../kdeui/kernel/kapplication.cpp:311
#28 0x00007f52a725b4dd in QCoreApplication::notifyInternal (this=0x14d1040, receiver=0x19b0098, event=0x7fff713b25b0) at kernel/qcoreapplication.cpp:953
#29 0x00007f52a728b323 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#30 QTimerInfoList::activateTimers (this=0x14de1c0) at kernel/qeventdispatcher_unix.cpp:621
#31 0x00007f52a72885f1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:193
#32 0x00007f529ded7e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f529ded8048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f529ded80ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f52a72887a1 in QEventDispatcherGlib::processEvents (this=0x1455990, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#36 0x00007f52a6696bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007f52a725a0af in QEventLoop::processEvents (this=this@entry=0x7fff713b2820, flags=...) at kernel/qeventloop.cpp:149
#38 0x00007f52a725a3a5 in QEventLoop::exec (this=this@entry=0x7fff713b2820, flags=...) at kernel/qeventloop.cpp:204
#39 0x00007f52a725fb79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#40 0x00007f52a65f337c in QApplication::exec () at kernel/qapplication.cpp:3828
#41 0x00007f52aa9bb67c in kdemain (argc=1, argv=0x7fff713b2a78) at ../../../../plasma/desktop/shell/main.cpp:126
#42 0x00007f52aa5dbec5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, argv=0x7fff713b2a78, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff713b2a68) at libc-start.c:287
#43 0x000000000040070e in _start ()

Reported using DrKonqi