Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.1 (4.7.1) "release 8"
Qt Version: 4.7.4
Operating System: Linux 2.6.37.6-0.7-desktop i686
Distribution: "openSUSE 11.4 (i586)"

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

I switched from one activity to another and then right-click on an applitaion to move it to another activity. After this plasma crashed.

- Unusual behavior I noticed:

Taskbar switches to 2 row mode however Maxiimum Rows=1 and FporceRowSettings=enabled.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb587e710 (LWP 13156))]

Thread 4 (Thread 0xa9c85b70 (LWP 13157)):
#0  0xb5b9c22b in clock_gettime () from /lib/librt.so.1
#1  0xb6de6345 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb6eb91b6 in updateCurrentTime (this=0x890ab5c, tm=...) at kernel/qeventdispatcher_unix.cpp:339
#4  QTimerInfoList::timerWait (this=0x890ab5c, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb6eb79fb in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xa9c8511c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb6eb7a9d in timerSourcePrepare (source=0x890ab28, timeout=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb5ae6a70 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#8  0xb5ae78e2 in ?? () from /lib/libglib-2.0.so.0
#9  0xb5ae7fce in g_main_context_iteration () from /lib/libglib-2.0.so.0
#10 0xb6eb8247 in QEventDispatcherGlib::processEvents (this=0x890a218, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb6e88c5d in QEventLoop::processEvents (this=0xa9c852b0, flags=...) at kernel/qeventloop.cpp:149
#12 0xb6e88e89 in QEventLoop::exec (this=0xa9c852b0, flags=...) at kernel/qeventloop.cpp:201
#13 0xb6d89fd9 in QThread::exec (this=0x88f0ee0) at thread/qthread.cpp:498
#14 0xb6e689ed in QInotifyFileSystemWatcherEngine::run (this=0x88f0ee0) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb6d8cc23 in QThreadPrivate::start (arg=0x88f0ee0) at thread/qthread_unix.cpp:331
#16 0xb6d0fb05 in start_thread () from /lib/libpthread.so.0
#17 0xb60c0d5e in clone () from /lib/libc.so.6

Thread 3 (Thread 0xa6c5cb70 (LWP 11701)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6d14105 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb44fbe17 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0xb6d0fb05 in start_thread () from /lib/libpthread.so.0
#4  0xb60c0d5e in clone () from /lib/libc.so.6

Thread 2 (Thread 0xa745db70 (LWP 11702)):
#0  0xb5b9c22b in clock_gettime () from /lib/librt.so.1
#1  0xb6de6345 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb6eb8e26 in QTimerInfoList::updateCurrentTime (this=0x9f08bcc) at kernel/qeventdispatcher_unix.cpp:339
#4  0xb6eb887e in timerSourceCheckHelper (src=0x9f08b98) at kernel/qeventdispatcher_glib.cpp:150
#5  0xb5ae7180 in g_main_context_check () from /lib/libglib-2.0.so.0
#6  0xb5ae7ac8 in ?? () from /lib/libglib-2.0.so.0
#7  0xb5ae7fce in g_main_context_iteration () from /lib/libglib-2.0.so.0
#8  0xb6eb8247 in QEventDispatcherGlib::processEvents (this=0x9df34c0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#9  0xb6e88c5d in QEventLoop::processEvents (this=0xa745d2e0, flags=...) at kernel/qeventloop.cpp:149
#10 0xb6e88e89 in QEventLoop::exec (this=0xa745d2e0, flags=...) at kernel/qeventloop.cpp:201
#11 0xb6d89fd9 in QThread::exec (this=0x9e910a8) at thread/qthread.cpp:498
#12 0xb6d8a06b in QThread::run (this=0x9e910a8) at thread/qthread.cpp:565
#13 0xb6d8cc23 in QThreadPrivate::start (arg=0x9e910a8) at thread/qthread_unix.cpp:331
#14 0xb6d0fb05 in start_thread () from /lib/libpthread.so.0
#15 0xb60c0d5e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb587e710 (LWP 13156)):
[KCrash Handler]
#7  0xb0f67ec2 in TaskManager::Task::classClass() const () from /usr/lib/libtaskmanager.so.4
#8  0xb0f5a2a9 in TaskManager::ToggleLauncherActionImpl::ToggleLauncherActionImpl(QObject*, TaskManager::AbstractGroupableItem*, TaskManager::GroupManager*) () from /usr/lib/libtaskmanager.so.4
#9  0xb0f5a80f in TaskManager::AdvancedMenu::AdvancedMenu(QWidget*, TaskManager::AbstractGroupableItem*, TaskManager::GroupManager*) () from /usr/lib/libtaskmanager.so.4
#10 0xb0f5b2db in TaskManager::BasicMenu::BasicMenu(QWidget*, TaskManager::TaskItem*, TaskManager::GroupManager*, QList<QAction*>) () from /usr/lib/libtaskmanager.so.4
#11 0xb0f5ba43 in TaskManager::BasicMenu::BasicMenu(QWidget*, TaskManager::TaskGroup*, TaskManager::GroupManager*, QList<QAction*>) () from /usr/lib/libtaskmanager.so.4
#12 0xb0f1cb3b in TaskGroupItem::contextMenuEvent(QGraphicsSceneContextMenuEvent*) () from /usr/lib/kde4/plasma_applet_tasks.so
#13 0xb69fbc23 in QGraphicsItem::sceneEvent (this=0xa78a4f0, event=0xbf9c87ac) at graphicsview/qgraphicsitem.cpp:6700
#14 0xb6a5c936 in QGraphicsWidget::sceneEvent (this=0xa78a4e8, event=0xbf9c87ac) at graphicsview/qgraphicswidget.cpp:1223
#15 0xb6a277ee in QGraphicsScenePrivate::sendEvent (this=0x81889e8, item=0xa78a4f0, event=0xbf9c87ac) at graphicsview/qgraphicsscene.cpp:1205
#16 0xb6a27f8e in QGraphicsScene::contextMenuEvent (this=0x80ce020, contextMenuEvent=0xbf9c87ac) at graphicsview/qgraphicsscene.cpp:3597
#17 0xb6a3c65c in QGraphicsScene::event (this=0x80ce020, event=0xbf9c87ac) at graphicsview/qgraphicsscene.cpp:3395
#18 0xb638a5c4 in QApplicationPrivate::notify_helper (this=0x80cdb48, receiver=0x80ce020, e=0xbf9c87ac) at kernel/qapplication.cpp:4481
#19 0xb6393367 in QApplication::notify (this=0x80bd428, receiver=0x80ce020, e=0xbf9c87ac) at kernel/qapplication.cpp:3881
#20 0xb75d2bd1 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#21 0xb6e8997e in QCoreApplication::notifyInternal (this=0x80bd428, receiver=0x80ce020, event=0xbf9c87ac) at kernel/qcoreapplication.cpp:787
#22 0xb6a512fc in sendEvent (this=0x8d52a60, event=0xbf9c8ebc) at ../../src/corelib/kernel/qcoreapplication.h:215
#23 QGraphicsView::contextMenuEvent (this=0x8d52a60, event=0xbf9c8ebc) at graphicsview/qgraphicsview.cpp:2890
#24 0xb63e6898 in QWidget::event (this=0x8d52a60, event=0xbf9c8ebc) at kernel/qwidget.cpp:8462
#25 0xb67f8d15 in QFrame::event (this=0x8d52a60, e=0xbf9c8ebc) at widgets/qframe.cpp:557
#26 0xb688a851 in QAbstractScrollArea::viewportEvent (this=0x8d52a60, e=0xbf9c8ebc) at widgets/qabstractscrollarea.cpp:1043
#27 0xb6a5acac in QGraphicsView::viewportEvent (this=0x8d52a60, event=0xbf9c8ebc) at graphicsview/qgraphicsview.cpp:2864
#28 0xb688d146 in viewportEvent (this=0x8f25748, o=0x8d67630, e=0xbf9c8ebc) at widgets/qabstractscrollarea_p.h:100
#29 QAbstractScrollAreaFilter::eventFilter (this=0x8f25748, o=0x8d67630, e=0xbf9c8ebc) at widgets/qabstractscrollarea_p.h:116
#30 0xb6e89b16 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x80cdb48, receiver=0x8d67630, event=0xbf9c8ebc) at kernel/qcoreapplication.cpp:902
#31 0xb638a594 in QApplicationPrivate::notify_helper (this=0x80cdb48, receiver=0x8d67630, e=0xbf9c8ebc) at kernel/qapplication.cpp:4477
#32 0xb6393718 in QApplication::notify (this=0x8d67630, receiver=0x8d67630, e=0xbf9c8ebc) at kernel/qapplication.cpp:4121
#33 0xb75d2bd1 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#34 0xb6e8997e in QCoreApplication::notifyInternal (this=0x80bd428, receiver=0x8d67630, event=0xbf9c8ebc) at kernel/qcoreapplication.cpp:787
#35 0xb6417bd7 in sendSpontaneousEvent (this=0x8d52a60, event=0xbf9c93ac) at ../../src/corelib/kernel/qcoreapplication.h:218
#36 QETWidget::translateMouseEvent (this=0x8d52a60, event=0xbf9c93ac) at kernel/qapplication_x11.cpp:4466
#37 0xb6416c6e in QApplication::x11ProcessEvent (this=0x80bd428, event=0xbf9c93ac) at kernel/qapplication_x11.cpp:3465
#38 0xb6441ab0 in x11EventSourceDispatch (s=0x80d1200, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#39 0xb5ae7509 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#40 0xb5ae7d10 in ?? () from /lib/libglib-2.0.so.0
#41 0xb5ae7fce in g_main_context_iteration () from /lib/libglib-2.0.so.0
#42 0xb6eb81fb in QEventDispatcherGlib::processEvents (this=0x80b5170, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#43 0xb64416aa in QGuiEventDispatcherGlib::processEvents (this=0x80b5170, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#44 0xb6e88c5d in QEventLoop::processEvents (this=0xbf9c9664, flags=...) at kernel/qeventloop.cpp:149
#45 0xb6e88e89 in QEventLoop::exec (this=0xbf9c9664, flags=...) at kernel/qeventloop.cpp:201
#46 0xb6e8d930 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#47 0xb6388314 in QApplication::exec () at kernel/qapplication.cpp:3755
#48 0xb241469b in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#49 0x0804e2a4 in launch(int, char const*, char const*, char const*, int, char const*, bool, char const*, bool, char const*) ()
#50 0x0804ee3f in handle_launcher_request(int, char const*) ()
#51 0x0804f4ec in handle_requests(int) ()
#52 0x08050369 in main ()

This bug may be a duplicate of or related to bug 277033.

Possible duplicates by query: bug 280987, bug 279530, bug 277033.

Reported using DrKonqi