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:
When i minimized the dolphin plasma desktop crashed,  At the time used firefox, dolphin NetBeans IDE  and mucon software center.
Aditional info: my computer have active internet connection.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f5471e267c0 (LWP 1833))]

Thread 4 (Thread 0x7f5451109700 (LWP 1834)):
#0  postEventSourcePrepare (s=0x27864d0, timeout=0x7f5451108bfc) at kernel/qeventdispatcher_glib.cpp:260
#1  0x00007f5465d83ff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5465d84dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5465d85429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f546e9ebf3e in QEventDispatcherGlib::processEvents (this=0x2785980, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f546e9bfcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f546e9bfef7 in QEventLoop::exec (this=0x7f5451108d90, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f546e8d727f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f546e9a2cbf in QInotifyFileSystemWatcherEngine::run (this=0x2782590) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f546e8d9d05 in QThreadPrivate::start (arg=0x2782590) at thread/qthread_unix.cpp:331
#10 0x00007f5466891efc in start_thread (arg=0x7f5451109700) at pthread_create.c:304
#11 0x00007f547180689d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f54472f6700 (LWP 1839)):
#0  0x00007f54717fa773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f5465d84f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5465d85429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f546e9ebf3e in QEventDispatcherGlib::processEvents (this=0x23e4090, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f546e9bfcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f546e9bfef7 in QEventLoop::exec (this=0x7f54472f5d90, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f546e8d727f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f546e9a2cbf in QInotifyFileSystemWatcherEngine::run (this=0x23ea150) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f546e8d9d05 in QThreadPrivate::start (arg=0x23ea150) at thread/qthread_unix.cpp:331
#9  0x00007f5466891efc in start_thread (arg=0x7f54472f6700) at pthread_create.c:304
#10 0x00007f547180689d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f54442c9700 (LWP 1856)):
#0  0x00007f5466894034 in __pthread_mutex_lock (mutex=0x2ed4148) at pthread_mutex_lock.c:61
#1  0x00007f5465d8475f in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5465d84f82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5465d85792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5444da7516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f5465daa2b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f5466891efc in start_thread (arg=0x7f54442c9700) at pthread_create.c:304
#7  0x00007f547180689d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f5471e267c0 (LWP 1833)):
[KCrash Handler]
#6  operator== (value=0, this=0xe) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#7  isNull (this=0x2ac1220) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#8  operator! (this=0x2ac1220) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#9  TaskManager::TaskItem::task (this=<optimized out>) at ../../../libs/taskmanager/taskitem.cpp:113
#10 0x00007f54579e3112 in WindowTaskItem::publishIconGeometry (this=0x42d7560) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#11 0x00007f54579f1b7c in AbstractTaskItem::timerEvent (this=0x42d7560, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#12 0x00007f546e9d7789 in QObject::event (this=0x42d7560, e=<optimized out>) at kernel/qobject.cpp:1181
#13 0x00007f546e38f89b in QGraphicsWidget::event (this=0x42d7560, event=0x7fff515a80f0) at graphicsview/qgraphicswidget.cpp:1455
#14 0x00007f546dd71424 in notify_helper (e=0x7fff515a80f0, receiver=0x42d7560, this=0x1ea8920) at kernel/qapplication.cpp:4486
#15 QApplicationPrivate::notify_helper (this=0x1ea8920, receiver=0x42d7560, e=0x7fff515a80f0) at kernel/qapplication.cpp:4458
#16 0x00007f546dd76291 in QApplication::notify (this=0x1e90290, receiver=0x42d7560, e=0x7fff515a80f0) at kernel/qapplication.cpp:4365
#17 0x00007f546f66f126 in KApplication::notify (this=0x1e90290, receiver=0x42d7560, event=0x7fff515a80f0) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x00007f546e9c0afc in QCoreApplication::notifyInternal (this=0x1e90290, receiver=0x42d7560, event=0x7fff515a80f0) at kernel/qcoreapplication.cpp:787
#19 0x00007f546e9edd62 in sendEvent (event=0x7fff515a80f0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x1ea6670) at kernel/qeventdispatcher_unix.cpp:603
#21 0x00007f546e9eb538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#22 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#23 0x00007f5465d84a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f5465d85258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f5465d85429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f546e9ebed6 in QEventDispatcherGlib::processEvents (this=0x1e36f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#27 0x00007f546de1907e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x00007f546e9bfcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007f546e9bfef7 in QEventLoop::exec (this=0x7fff515a8380, flags=...) at kernel/qeventloop.cpp:201
#30 0x00007f546e9c4789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#31 0x00007f5471b051a3 in kdemain (argc=1, argv=0x7fff515a8768) at ../../../../plasma/desktop/shell/main.cpp:120
#32 0x00007f547174630d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff515a8768, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff515a8758) at libc-start.c:226
#33 0x0000000000400671 in _start ()

Possible duplicates by query: bug 289940, bug 289826, bug 289676, bug 289669, bug 289653.

Reported using DrKonqi