Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-15-generic x86_64
Distribution: Ubuntu 11.10

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

I have the traditional application launcher and every time I use Menu>Leave>Shutdown the system hangs. After about one minute it starts responding again and I try to shutdown the same way and it works.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f42526ab7a0 (LWP 1865))]

Thread 4 (Thread 0x7f42313bd700 (LWP 1866)):
#0  0x00007f4251f8c773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f42462d0f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f42462d1429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f424f178f3e in QEventDispatcherGlib::processEvents (this=0x7f422c0008b0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f424f14ccf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f424f14cef7 in QEventLoop::exec (this=0x7f42313bcdb0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f424f06427f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f424f12fcbf in QInotifyFileSystemWatcherEngine::run (this=0x1d7a860) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f424f066d05 in QThreadPrivate::start (arg=0x1d7a860) at thread/qthread_unix.cpp:331
#9  0x00007f4246dddefc in start_thread (arg=0x7f42313bd700) at pthread_create.c:304
#10 0x00007f4251f9889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f4229585700 (LWP 1867)):
#0  0x00007f42462d0102 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f42462d0dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f42462d1429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f424f178f3e in QEventDispatcherGlib::processEvents (this=0x1fabea0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f424f14ccf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f424f14cef7 in QEventLoop::exec (this=0x7f4229584db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f424f06427f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f424f12fcbf in QInotifyFileSystemWatcherEngine::run (this=0x1fab3b0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f424f066d05 in QThreadPrivate::start (arg=0x1fab3b0) at thread/qthread_unix.cpp:331
#9  0x00007f4246dddefc in start_thread (arg=0x7f4229585700) at pthread_create.c:304
#10 0x00007f4251f9889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f4226129700 (LWP 1873)):
#0  0x00007f4251f8c773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f42462d0f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f42462d1792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4226c07516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f42462f62b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4246dddefc in start_thread (arg=0x7f4226129700) at pthread_create.c:304
#6  0x00007f4251f9889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f42526ab7a0 (LWP 1865)):
[KCrash Handler]
#6  0x00007f423919808f in Kickoff::MenuView::rowsInserted (this=0x2567490, parent=..., start=0, end=0) at ../../../../../plasma/desktop/applets/kickoff/simpleapplet/menuview.cpp:423
#7  0x00007f4239198cd4 in Kickoff::MenuView::qt_metacall (this=0x2567490, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffa67b94c0) at ./menuview.moc:93
#8  0x00007f424f160eba in QMetaObject::activate (sender=0x29c04a0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffa67b94c0) at kernel/qobject.cpp:3278
#9  0x00007f424f1a98d4 in QAbstractItemModel::rowsInserted (this=<optimized out>, _t1=<optimized out>, _t2=0, _t3=0) at .moc/release-shared/moc_qabstractitemmodel.cpp:181
#10 0x00007f424f14822e in QAbstractItemModel::endInsertRows (this=0x29c04a0) at kernel/qabstractitemmodel.cpp:2412
#11 0x00007f424ea9aa03 in QStandardItemModelPrivate::rowsInserted (this=0x2aab330, parent=<optimized out>, row=<optimized out>, count=1) at itemviews/qstandarditemmodel.cpp:558
#12 0x00007f424ea9ac64 in QStandardItemPrivate::insertRows (this=0x2b6e610, row=0, count=1, items=...) at itemviews/qstandarditemmodel.cpp:433
#13 0x00007f4238f5dc32 in appendRow (aitem=0x2482810, this=0x29c04a0) at /usr/include/qt4/QtGui/qstandarditemmodel.h:435
#14 init (this=<optimized out>) at ../../../../../plasma/desktop/applets/kickoff/core/favoritesmodel.cpp:50
#15 Kickoff::FavoritesModel::setNameDisplayOrder (this=<optimized out>, displayOrder=<optimized out>) at ../../../../../plasma/desktop/applets/kickoff/core/favoritesmodel.cpp:339
#16 0x00007f42391a17c2 in MenuLauncherApplet::showMenu (this=<optimized out>, pressed=<optimized out>) at ../../../../../plasma/desktop/applets/kickoff/simpleapplet/simpleapplet.cpp:634
#17 0x00007f42391a4654 in MenuLauncherApplet::qt_metacall (this=0x187c4c0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffa67ba3c0) at ./simpleapplet.moc:137
#18 0x00007f424f160eba in QMetaObject::activate (sender=0x187c4c0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3278
#19 0x00007f4251a9739e in Plasma::Applet::qt_metacall (this=0x187c4c0, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0x7fffa67ba620) at ./applet.moc:190
#20 0x00007f42391a4520 in MenuLauncherApplet::qt_metacall (this=0x187c4c0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffa67ba620) at ./simpleapplet.moc:126
#21 0x00007f424f160eba in QMetaObject::activate (sender=0x1db0f10, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffa67ba620) at kernel/qobject.cpp:3278
#22 0x00007f424e4f6bb2 in QAction::triggered (this=<optimized out>, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#23 0x00007f424e4f6d9f in QAction::activate (this=0x1db0f10, event=<optimized out>) at kernel/qaction.cpp:1257
#24 0x00007f424fe41050 in trigger (this=0x1db0f10) at /usr/include/qt4/QtGui/qaction.h:218
#25 KGlobalAccelPrivate::_k_invokeAction (this=<optimized out>, componentUnique=<optimized out>, actionUnique=<optimized out>, timestamp=16263068) at ../../kdeui/shortcuts/kglobalaccel.cpp:449
#26 0x00007f424fe437f3 in KGlobalAccel::qt_metacall (this=0x17ef9f0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffa67ba7e0) at ./kglobalaccel.moc:77
#27 0x00007f424f160eba in QMetaObject::activate (sender=0x180ce00, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffa67ba7e0) at kernel/qobject.cpp:3278
#28 0x00007f424ff54ab9 in OrgKdeKglobalaccelComponentInterface::globalShortcutPressed (this=<optimized out>, _t1=<optimized out>, _t2=<optimized out>, _t3=16263068) at kglobalaccel_component_interface.moc:150
#29 0x00007f424ff54f22 in OrgKdeKglobalaccelComponentInterface::qt_metacall (this=0x180ce00, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fffa67babf0) at kglobalaccel_component_interface.moc:98
#30 0x00007f424f4a50e9 in QDBusConnectionPrivate::deliverCall (this=0x16a3510, object=0x180ce00, msg=..., metaTypes=..., slotIdx=5) at qdbusintegrator.cpp:942
#31 0x00007f424f4ae38f in QDBusCallDeliveryEvent::placeMetaCall (this=<optimized out>, object=<optimized out>) at qdbusintegrator_p.h:103
#32 0x00007f424f164a5e in QObject::event (this=0x180ce00, e=<optimized out>) at kernel/qobject.cpp:1217
#33 0x00007f424e4fd474 in notify_helper (e=0x2b64f30, receiver=0x180ce00, this=0x16adf10) at kernel/qapplication.cpp:4486
#34 QApplicationPrivate::notify_helper (this=0x16adf10, receiver=0x180ce00, e=0x2b64f30) at kernel/qapplication.cpp:4458
#35 0x00007f424e5022e1 in QApplication::notify (this=0x16a2b70, receiver=0x180ce00, e=0x2b64f30) at kernel/qapplication.cpp:4365
#36 0x00007f424fdfc466 in KApplication::notify (this=0x16a2b70, receiver=0x180ce00, event=0x2b64f30) at ../../kdeui/kernel/kapplication.cpp:311
#37 0x00007f424f14dafc in QCoreApplication::notifyInternal (this=0x16a2b70, receiver=0x180ce00, event=0x2b64f30) at kernel/qcoreapplication.cpp:787
#38 0x00007f424f15151f in sendEvent (event=0x2b64f30, receiver=0x180ce00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#39 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1640430) at kernel/qcoreapplication.cpp:1428
#40 0x00007f424f178a73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#41 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#42 0x00007f42462d0a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f42462d1258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f42462d1429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f424f178ed6 in QEventDispatcherGlib::processEvents (this=0x1641f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#46 0x00007f424e5a510e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#47 0x00007f424f14ccf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#48 0x00007f424f14cef7 in QEventLoop::exec (this=0x7fffa67bb410, flags=...) at kernel/qeventloop.cpp:201
#49 0x00007f424f151789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#50 0x00007f42522971a3 in kdemain (argc=1, argv=0x7fffa67bb7f8) at ../../../../plasma/desktop/shell/main.cpp:120
#51 0x00007f4251ed830d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffa67bb7f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffa67bb7e8) at libc-start.c:226
#52 0x0000000000400671 in _start ()

Possible duplicates by query: bug 293438, bug 288687, bug 288149, bug 286970, bug 284661.

Reported using DrKonqi