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:

I noticed a big problem of slowness (display, login...) witch not encountered with rekonq! Then i decided to close Firefox and restart it.. It took a long time to close and then this crash!

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f505d3777a0 (LWP 2217))]

Thread 4 (Thread 0x7f503a373700 (LWP 2219)):
#0  0x00007f505cc4c773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f50511d6f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f50511d7429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5059e3df3e in QEventDispatcherGlib::processEvents (this=0x2c13040, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f5059e11cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f5059e11ef7 in QEventLoop::exec (this=0x7f503a372db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f5059d2927f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f5059df4cbf in QInotifyFileSystemWatcherEngine::run (this=0x2c11970) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f5059d2bd05 in QThreadPrivate::start (arg=0x2c11970) at thread/qthread_unix.cpp:331
#9  0x00007f5051ce3efc in start_thread (arg=0x7f503a373700) at pthread_create.c:304
#10 0x00007f505cc5889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f503787a700 (LWP 2220)):
#0  0x00007f505cc4c773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f50511d6f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f50511d7429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5059e3df3e in QEventDispatcherGlib::processEvents (this=0x2e2d5c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f5059e11cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f5059e11ef7 in QEventLoop::exec (this=0x7f5037879db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f5059d2927f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f5059df4cbf in QInotifyFileSystemWatcherEngine::run (this=0x2e2f710) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f5059d2bd05 in QThreadPrivate::start (arg=0x2e2f710) at thread/qthread_unix.cpp:331
#9  0x00007f5051ce3efc in start_thread (arg=0x7f503787a700) at pthread_create.c:304
#10 0x00007f505cc5889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f502ffff700 (LWP 2226)):
#0  0x00007f505cc4c773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f50511d6f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f50511d7792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5035109516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f50511fc2b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5051ce3efc in start_thread (arg=0x7f502ffff700) at pthread_create.c:304
#6  0x00007f505cc5889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f505d3777a0 (LWP 2217)):
[KCrash Handler]
#6  isNull (this=0x805cbf0037) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#7  operator! (this=0x805cbf0037) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#8  TaskManager::TaskItem::task (this=0x2b33cc0) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007f50439e7112 in WindowTaskItem::publishIconGeometry (this=0x390a840) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#10 0x00007f50439f5b7c in AbstractTaskItem::timerEvent (this=0x390a840, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#11 0x00007f5059e29789 in QObject::event (this=0x390a840, e=<optimized out>) at kernel/qobject.cpp:1181
#12 0x00007f50597e189b in QGraphicsWidget::event (this=0x390a840, event=0x7fff6f10e440) at graphicsview/qgraphicswidget.cpp:1455
#13 0x00007f50591c3424 in notify_helper (e=0x7fff6f10e440, receiver=0x390a840, this=0x21bdee0) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x21bdee0, receiver=0x390a840, e=0x7fff6f10e440) at kernel/qapplication.cpp:4458
#15 0x00007f50591c8291 in QApplication::notify (this=0x21a9090, receiver=0x390a840, e=0x7fff6f10e440) at kernel/qapplication.cpp:4365
#16 0x00007f505aac1126 in KApplication::notify (this=0x21a9090, receiver=0x390a840, event=0x7fff6f10e440) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f5059e12afc in QCoreApplication::notifyInternal (this=0x21a9090, receiver=0x390a840, event=0x7fff6f10e440) at kernel/qcoreapplication.cpp:787
#18 0x00007f5059e3fd62 in sendEvent (event=0x7fff6f10e440, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QTimerInfoList::activateTimers (this=0x21c3e00) at kernel/qeventdispatcher_unix.cpp:603
#20 0x00007f5059e3d538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#21 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#22 0x00007f50511d6a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f50511d7258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f50511d7429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f5059e3ded6 in QEventDispatcherGlib::processEvents (this=0x2147f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#26 0x00007f505926b07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007f5059e11cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007f5059e11ef7 in QEventLoop::exec (this=0x7fff6f10e6d0, flags=...) at kernel/qeventloop.cpp:201
#29 0x00007f5059e16789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0x00007f505cf571a3 in kdemain (argc=1, argv=0x7fff6f10eab8) at ../../../../plasma/desktop/shell/main.cpp:120
#31 0x00007f505cb9830d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff6f10eab8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff6f10eaa8) at libc-start.c:226
#32 0x0000000000400671 in _start ()

Possible duplicates by query: bug 290147, bug 290129, bug 290106, bug 290101, bug 290081.

Reported using DrKonqi