Application: plasma-desktop (4.11.2)
KDE Platform Version: 4.11.2
Qt Version: 4.8.5
Operating System: Linux 3.11.6-4-desktop x86_64
Distribution: "openSUSE 13.1 (Bottle) (x86_64)"

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

When I pressed the MacBook bottom CMD + TAB by mistake the whole plasma crashed.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fda30929780 (LWP 3585))]

Thread 3 (Thread 0x7fda10d2b700 (LWP 3587)):
#0  0x00007fda2f1e40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fda213d78cb in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fda216d5f00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fda213d7909 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fda2f1e00db in start_thread () from /lib64/libpthread.so.0
#4  0x00007fda2df4990d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fd985630700 (LWP 3588)):
#0  0x00007fda2df40b3d in poll () from /lib64/libc.so.6
#1  0x00007fda2ae545c4 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fda2ae546cc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fda2f5a3d76 in QEventDispatcherGlib::processEvents (this=0x7fd9800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#4  0x00007fda2f575d0f in QEventLoop::processEvents (this=this@entry=0x7fd98562fe20, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fda2f576005 in QEventLoop::exec (this=this@entry=0x7fd98562fe20, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fda2f474fef in QThread::exec (this=this@entry=0x18d4b00) at thread/qthread.cpp:536
#7  0x00007fda2f557513 in QInotifyFileSystemWatcherEngine::run (this=0x18d4b00) at io/qfilesystemwatcher_inotify.cpp:256
#8  0x00007fda2f47768f in QThreadPrivate::start (arg=0x18d4b00) at thread/qthread_unix.cpp:338
#9  0x00007fda2f1e00db in start_thread () from /lib64/libpthread.so.0
#10 0x00007fda2df4990d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fda30929780 (LWP 3585)):
[KCrash Handler]
#6  0x00007fda11e7e3b6 in TaskManager::TaskGroup::add (this=0x3e0d140, item=item@entry=0x20200a0, insertIndex=insertIndex@entry=-1) at /usr/src/debug/kde-workspace-4.11.2/libs/taskmanager/taskgroup.cpp:221
#7  0x00007fda11e629c4 in TaskManager::GroupManagerPrivate::currentActivityChanged (this=0x1e8a7f0, newActivity=...) at /usr/src/debug/kde-workspace-4.11.2/libs/taskmanager/groupmanager.cpp:469
#8  0x00007fda11e65818 in TaskManager::GroupManager::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /usr/src/debug/kde-workspace-4.11.2/build/libs/taskmanager/groupmanager.moc:85
#9  0x00007fda2f58ad68 in QMetaObject::activate (sender=0x1e8a270, m=m@entry=0x7fda120a54c0 <TaskManager::TaskManager::staticMetaObject>, local_signal_index=local_signal_index@entry=5, argv=argv@entry=0x7fff42793220) at kernel/qobject.cpp:3556
#10 0x00007fda11e84215 in TaskManager::TaskManager::activityChanged (this=<optimized out>, _t1=...) at /usr/src/debug/kde-workspace-4.11.2/build/libs/taskmanager/taskmanager.moc:221
#11 0x00007fda11e864e9 in TaskManager::TaskManager::qt_static_metacall (_o=0x0, _id=33685455, _a=0x2, _c=<optimized out>) at /usr/src/debug/kde-workspace-4.11.2/build/libs/taskmanager/taskmanager.moc:100
#12 0x00007fda2f58ad68 in QMetaObject::activate (sender=0x1e89560, m=m@entry=0x7fda1a23c640 <KActivities::Consumer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff42793380) at kernel/qobject.cpp:3556
#13 0x00007fda1a029c02 in KActivities::Consumer::currentActivityChanged (this=<optimized out>, _t1=...) at /usr/src/debug/kactivities-4.11.2/builddir/src/lib/core/moc_consumer.cpp:140
#14 0x00007fda2f58ad68 in QMetaObject::activate (sender=0x1a90eb0, m=m@entry=0x7fda1a23c5c0 <KActivities::ConsumerPrivate::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff427934a0) at kernel/qobject.cpp:3556
#15 0x00007fda1a029dc5 in KActivities::ConsumerPrivate::currentActivityChanged (this=<optimized out>, _t1=...) at /usr/src/debug/kactivities-4.11.2/builddir/src/lib/core/moc_consumer_p.cpp:141
#16 0x00007fda1a02b586 in KActivities::ConsumerPrivate::setCurrentActivity (this=<optimized out>, activity=...) at /usr/src/debug/kactivities-4.11.2/src/lib/core/consumer.cpp:103
#17 0x00007fda1a029b39 in KActivities::ConsumerPrivate::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /usr/src/debug/kactivities-4.11.2/builddir/src/lib/core/moc_consumer_p.cpp:82
#18 0x00007fda2f58ad68 in QMetaObject::activate (sender=0x1a90fd0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff42793640) at kernel/qobject.cpp:3556
#19 0x00007fda1a034589 in CurrentActivityChanged (_t1=..., this=<optimized out>) at /usr/src/debug/kactivities-4.11.2/builddir/src/lib/core/activities_interface.moc:242
#20 OrgKdeActivityManagerActivitiesInterface::qt_static_metacall (_o=0x1a90fd0, _id=33685455, _id@entry=8, _a=0x7fff42793810, _c=<optimized out>) at /usr/src/debug/kactivities-4.11.2/builddir/src/lib/core/activities_interface.moc:107
#21 0x00007fda1a0347d3 in qt_static_metacall (_a=0x7fff42793810, _id=8, _c=QMetaObject::InvokeMetaMethod, _o=0x1a90fd0) at /usr/src/debug/kactivities-4.11.2/builddir/src/lib/core/activities_interface.moc:175
#22 OrgKdeActivityManagerActivitiesInterface::qt_metacall (this=0x1a90fd0, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0x7fff42793810) at /usr/src/debug/kactivities-4.11.2/builddir/src/lib/core/activities_interface.moc:176
#23 0x00007fda2c2c2ead in QDBusConnectionPrivate::deliverCall (this=0x187ff40, object=0x1a90fd0, msg=..., metaTypes=..., slotIdx=13) at qdbusintegrator.cpp:951
#24 0x00007fda2f58f11e in QObject::event (this=0x1a90fd0, e=<optimized out>) at kernel/qobject.cpp:1203
#25 0x00007fda2e6f68ac in QApplicationPrivate::notify_helper (this=this@entry=0x1892ad0, receiver=receiver@entry=0x1a90fd0, e=e@entry=0x3e35740) at kernel/qapplication.cpp:4562
#26 0x00007fda2e6fce70 in QApplication::notify (this=this@entry=0x187f3d0, receiver=receiver@entry=0x1a90fd0, e=e@entry=0x3e35740) at kernel/qapplication.cpp:4348
#27 0x00007fda3031d18a in KApplication::notify (this=0x187f3d0, receiver=0x1a90fd0, event=0x3e35740) at /usr/src/debug/kdelibs-4.11.2/kdeui/kernel/kapplication.cpp:311
#28 0x00007fda2f5770ad in QCoreApplication::notifyInternal (this=0x187f3d0, receiver=receiver@entry=0x1a90fd0, event=event@entry=0x3e35740) at kernel/qcoreapplication.cpp:949
#29 0x00007fda2f57a0ff in sendEvent (event=0x3e35740, receiver=0x1a90fd0) at kernel/qcoreapplication.h:231
#30 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x17c8150) at kernel/qcoreapplication.cpp:1573
#31 0x00007fda2f57a5a3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1466
#32 0x00007fda2f5a4493 in sendPostedEvents () at kernel/qcoreapplication.h:236
#33 postEventSourceDispatch (s=0x188bc90) at kernel/qeventdispatcher_glib.cpp:280
#34 0x00007fda2ae542d6 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#35 0x00007fda2ae54628 in ?? () from /usr/lib64/libglib-2.0.so.0
#36 0x00007fda2ae546cc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#37 0x00007fda2f5a3d55 in QEventDispatcherGlib::processEvents (this=0x188fa70, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#38 0x00007fda2e793936 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007fda2f575d0f in QEventLoop::processEvents (this=this@entry=0x7fff42793ec0, flags=...) at kernel/qeventloop.cpp:149
#40 0x00007fda2f576005 in QEventLoop::exec (this=this@entry=0x7fff42793ec0, flags=...) at kernel/qeventloop.cpp:204
#41 0x00007fda2f57b13b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#42 0x00007fda2e6f506c in QApplication::exec () at kernel/qapplication.cpp:3823
#43 0x00007fda1a6d088c in kdemain (argc=1, argv=0x1838ee0) at /usr/src/debug/kde-workspace-4.11.2/plasma/desktop/shell/main.cpp:126
#44 0x000000000040879e in _start ()

Possible duplicates by query: bug 324887.

Reported using DrKonqi