Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.1.8 x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
I ended a skype conversation. When the skype call window closed, it took the Plasma desktop with it:-(

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f0e621817c0 (LWP 2125))]

Thread 3 (Thread 0x7f0e41807700 (LWP 2128)):
#0  0x00007f0e61a67773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f0e55ff1f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0e55ff2429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0e5ec58f3e in QEventDispatcherGlib::processEvents (this=0x2313770, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f0e5ec2ccf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f0e5ec2cef7 in QEventLoop::exec (this=0x7f0e41806cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f0e5eb4427f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f0e5ec0fcbf in QInotifyFileSystemWatcherEngine::run (this=0x22c9fe0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f0e5eb46d05 in QThreadPrivate::start (arg=0x22c9fe0) at thread/qthread_unix.cpp:331
#9  0x00007f0e5330b56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f0e56afeefc in start_thread (arg=0x7f0e41807700) at pthread_create.c:304
#11 0x00007f0e61a7389d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f0e35ce7700 (LWP 2129)):
#0  0x00007f0e61a67773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f0e55ff1f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0e55ff2429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0e5ec58f3e in QEventDispatcherGlib::processEvents (this=0x260b1a0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f0e5ec2ccf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f0e5ec2cef7 in QEventLoop::exec (this=0x7f0e35ce6cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f0e5eb4427f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f0e5ec0fcbf in QInotifyFileSystemWatcherEngine::run (this=0x24be7c0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f0e5eb46d05 in QThreadPrivate::start (arg=0x24be7c0) at thread/qthread_unix.cpp:331
#9  0x00007f0e5330b56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f0e56afeefc in start_thread (arg=0x7f0e35ce7700) at pthread_create.c:304
#11 0x00007f0e61a7389d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0e621817c0 (LWP 2125)):
[KCrash Handler]
#6  isNull (this=0x4d0000) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#7  operator! (this=0x4d0000) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#8  TaskManager::TaskItem::task (this=0x504d400) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007f0e464e8112 in WindowTaskItem::publishIconGeometry (this=0x44de380) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#10 0x00007f0e464f6b7c in AbstractTaskItem::timerEvent (this=0x44de380, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#11 0x00007f0e5ec44789 in QObject::event (this=0x44de380, e=<optimized out>) at kernel/qobject.cpp:1181
#12 0x00007f0e5e5fc89b in QGraphicsWidget::event (this=0x44de380, event=0x7fffd7023920) at graphicsview/qgraphicswidget.cpp:1455
#13 0x00007f0e5dfde424 in notify_helper (e=0x7fffd7023920, receiver=0x44de380, this=0x17f3270) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x17f3270, receiver=0x44de380, e=0x7fffd7023920) at kernel/qapplication.cpp:4458
#15 0x00007f0e5dfe3291 in QApplication::notify (this=0x17e03a0, receiver=0x44de380, e=0x7fffd7023920) at kernel/qapplication.cpp:4365
#16 0x00007f0e5f8dc126 in KApplication::notify (this=0x17e03a0, receiver=0x44de380, event=0x7fffd7023920) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f0e5ec2dafc in QCoreApplication::notifyInternal (this=0x17e03a0, receiver=0x44de380, event=0x7fffd7023920) at kernel/qcoreapplication.cpp:787
#18 0x00007f0e5ec5ad62 in sendEvent (event=0x7fffd7023920, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QTimerInfoList::activateTimers (this=0x17f0560) at kernel/qeventdispatcher_unix.cpp:603
#20 0x00007f0e5ec58538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#21 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#22 0x00007f0e55ff1a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f0e55ff2258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f0e55ff2429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f0e5ec58ed6 in QEventDispatcherGlib::processEvents (this=0x1738f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#26 0x00007f0e5e08607e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007f0e5ec2ccf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007f0e5ec2cef7 in QEventLoop::exec (this=0x7fffd7023bb0, flags=...) at kernel/qeventloop.cpp:201
#29 0x00007f0e5ec31789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0x00007f0e61d721a3 in kdemain (argc=1, argv=0x7fffd7023f98) at ../../../../plasma/desktop/shell/main.cpp:120
#31 0x00007f0e619b330d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffd7023f98, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffd7023f88) at libc-start.c:226
#32 0x0000000000400671 in _start ()

Possible duplicates by query: bug 291860, bug 291854, bug 291848, bug 291787, bug 291785.

Reported using DrKonqi