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:
- What I was doing when the application crashed:
Opening eclipse.
Sometimes the crash has also occurrs  when I logout.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f07b14ea7a0 (LWP 1665))]

Thread 4 (Thread 0x7f078f758700 (LWP 1666)):
#0  0x00007f07b0dc8773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f07a5352f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07a5353429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07adfb9f3e in QEventDispatcherGlib::processEvents (this=0x1764310, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f07adf8dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f07adf8def7 in QEventLoop::exec (this=0x7f078f757db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f07adea527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f07adf70cbf in QInotifyFileSystemWatcherEngine::run (this=0x1760960) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f07adea7d05 in QThreadPrivate::start (arg=0x1760960) at thread/qthread_unix.cpp:331
#9  0x00007f07a5e5fefc in start_thread (arg=0x7f078f758700) at pthread_create.c:304
#10 0x00007f07b0dd489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f078cdd5700 (LWP 1667)):
#0  0x00007f07a5e6202d in __pthread_mutex_lock (mutex=0x1917778) at pthread_mutex_lock.c:61
#1  0x00007f07a5352361 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07a5352e6a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07a5353429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f07adfb9f3e in QEventDispatcherGlib::processEvents (this=0x12d1920, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f07adf8dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f07adf8def7 in QEventLoop::exec (this=0x7f078cdd4db0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f07adea527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f07adf70cbf in QInotifyFileSystemWatcherEngine::run (this=0x130f270) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f07adea7d05 in QThreadPrivate::start (arg=0x130f270) at thread/qthread_unix.cpp:331
#10 0x00007f07a5e5fefc in start_thread (arg=0x7f078cdd5700) at pthread_create.c:304
#11 0x00007f07b0dd489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f07859dd700 (LWP 1673)):
#0  0x00007f07b0dc8773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f07a5352f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07a5353792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07864bb516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f07a53782b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f07a5e5fefc in start_thread (arg=0x7f07859dd700) at pthread_create.c:304
#6  0x00007f07b0dd489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f07b14ea7a0 (LWP 1665)):
[KCrash Handler]
#6  isNull (this=0x0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#7  operator! (this=0x0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#8  TaskManager::TaskItem::task (this=0x27db7e0) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007f079821c068 in WindowTaskItem::publishIconGeometry (this=0x22511c0, rect=...) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:130
#10 0x00007f079822bd24 in TaskGroupItem::publishIconGeometry (this=<optimized out>, rect=...) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:1432
#11 0x00007f079822baa5 in publishIconGeometry (this=0x27e4e40) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:1424
#12 TaskGroupItem::publishIconGeometry (this=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:1416
#13 0x00007f079822ab7c in AbstractTaskItem::timerEvent (this=0x27e4e40, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#14 0x00007f07adfa5789 in QObject::event (this=0x27e4e40, e=<optimized out>) at kernel/qobject.cpp:1181
#15 0x00007f07ad95d89b in QGraphicsWidget::event (this=0x27e4e40, event=0x7fffec72ff70) at graphicsview/qgraphicswidget.cpp:1455
#16 0x00007f07ad33f424 in notify_helper (e=0x7fffec72ff70, receiver=0x27e4e40, this=0xd9a250) at kernel/qapplication.cpp:4486
#17 QApplicationPrivate::notify_helper (this=0xd9a250, receiver=0x27e4e40, e=0x7fffec72ff70) at kernel/qapplication.cpp:4458
#18 0x00007f07ad344291 in QApplication::notify (this=0xd8bd00, receiver=0x27e4e40, e=0x7fffec72ff70) at kernel/qapplication.cpp:4365
#19 0x00007f07aec3d126 in KApplication::notify (this=0xd8bd00, receiver=0x27e4e40, event=0x7fffec72ff70) at ../../kdeui/kernel/kapplication.cpp:311
#20 0x00007f07adf8eafc in QCoreApplication::notifyInternal (this=0xd8bd00, receiver=0x27e4e40, event=0x7fffec72ff70) at kernel/qcoreapplication.cpp:787
#21 0x00007f07adfbbd62 in sendEvent (event=0x7fffec72ff70, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#22 QTimerInfoList::activateTimers (this=0xd9fc60) at kernel/qeventdispatcher_unix.cpp:603
#23 0x00007f07adfb9538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#24 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#25 0x00007f07a5352a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f07a5353258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f07a5353429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f07adfb9ed6 in QEventDispatcherGlib::processEvents (this=0xd2ef40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#29 0x00007f07ad3e707e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#30 0x00007f07adf8dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#31 0x00007f07adf8def7 in QEventLoop::exec (this=0x7fffec730200, flags=...) at kernel/qeventloop.cpp:201
#32 0x00007f07adf92789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#33 0x00007f07b10d31a3 in kdemain (argc=1, argv=0x7fffec7305e8) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x00007f07b0d1430d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffec7305e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffec7305d8) at libc-start.c:226
#35 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 289704.

Possible duplicates by query: bug 289704, bug 289683, bug 289676, bug 289669, bug 289660.

Reported using DrKonqi