Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-13-generic x86_64
Distribution: Ubuntu 11.10

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

simply closing KDE session after quitting on all application taht hab been opened during the current session ; then nothing particular that I can point out.

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f5de054e7a0 (LWP 1900))]

Thread 6 (Thread 0x7f5dbc651700 (LWP 1901)):
#0  __pthread_mutex_unlock (mutex=0x7f5ddd022490) at pthread_mutex_unlock.c:289
#1  0x00007f5dd43bafe4 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5dd43bbdfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5dd43bc429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5ddd022f3e in QEventDispatcherGlib::processEvents (this=0x2399aa0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f5ddcff6cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f5ddcff6ef7 in QEventLoop::exec (this=0x7f5dbc650db0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f5ddcf0e27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f5ddcfd9cbf in QInotifyFileSystemWatcherEngine::run (this=0x237f560) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f5ddcf10d05 in QThreadPrivate::start (arg=0x237f560) at thread/qthread_unix.cpp:331
#10 0x00007f5dd4ec8efc in start_thread (arg=0x7f5dbc651700) at pthread_create.c:304
#11 0x00007f5ddfe3d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f5db9da4700 (LWP 1902)):
#0  0x00007f5dd4ecb034 in __pthread_mutex_lock (mutex=0x25af4d8) at pthread_mutex_lock.c:61
#1  0x00007f5dd43bbf2f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5dd43bc429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5ddd022f3e in QEventDispatcherGlib::processEvents (this=0x25aeb30, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f5ddcff6cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f5ddcff6ef7 in QEventLoop::exec (this=0x7f5db9da3db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f5ddcf0e27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f5ddcfd9cbf in QInotifyFileSystemWatcherEngine::run (this=0x25adde0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f5ddcf10d05 in QThreadPrivate::start (arg=0x25adde0) at thread/qthread_unix.cpp:331
#9  0x00007f5dd4ec8efc in start_thread (arg=0x7f5db9da4700) at pthread_create.c:304
#10 0x00007f5ddfe3d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f5dac228700 (LWP 1913)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5ddb4cac2c in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f5ddb4cad59 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f5dd4ec8efc in start_thread (arg=0x7f5dac228700) at pthread_create.c:304
#4  0x00007f5ddfe3d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f5dab90f700 (LWP 1914)):
#0  0x00007f5ddfe31773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f5dd43bbf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5dd43bc429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5ddd022f3e in QEventDispatcherGlib::processEvents (this=0x7f5db4000d50, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f5ddcff6cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f5ddcff6ef7 in QEventLoop::exec (this=0x7f5dab90ede0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f5ddcf0e27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f5ddcf10d05 in QThreadPrivate::start (arg=0x2e132b0) at thread/qthread_unix.cpp:331
#8  0x00007f5dd4ec8efc in start_thread (arg=0x7f5dab90f700) at pthread_create.c:304
#9  0x00007f5ddfe3d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f5d687d0700 (LWP 1997)):
#0  0x00007f5dd4ecc1fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x7f5db400beb8) at pthread_mutex_unlock.c:290
#2  0x00007f5dd43bbf9a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5dd43bc429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5ddd022f3e in QEventDispatcherGlib::processEvents (this=0x381e0e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f5ddcff6cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f5ddcff6ef7 in QEventLoop::exec (this=0x7f5d687cfde0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f5ddcf0e27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f5ddcf10d05 in QThreadPrivate::start (arg=0x381e8c0) at thread/qthread_unix.cpp:331
#9  0x00007f5dd4ec8efc in start_thread (arg=0x7f5d687d0700) at pthread_create.c:304
#10 0x00007f5ddfe3d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f5de054e7a0 (LWP 1900)):
[KCrash Handler]
#6  0x00000000019d8b1a in ?? ()
#7  0x00007f5dc6c50b96 in TaskGroupItem::~TaskGroupItem (this=0x3d5cee0, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f5dc6c50c59 in TaskGroupItem::~TaskGroupItem (this=0x3d5cee0, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:84
#9  0x00007f5ddd00ea88 in QObject::event (this=0x3d5cee0, e=<optimized out>) at kernel/qobject.cpp:1200
#10 0x00007f5ddc9c689b in QGraphicsWidget::event (this=0x3d5cee0, event=0x38d4510) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007f5ddc3a8424 in notify_helper (e=0x38d4510, receiver=0x3d5cee0, this=0x16fbd10) at kernel/qapplication.cpp:4486
#12 QApplicationPrivate::notify_helper (this=0x16fbd10, receiver=0x3d5cee0, e=0x38d4510) at kernel/qapplication.cpp:4458
#13 0x00007f5ddc3ad291 in QApplication::notify (this=0x16edd00, receiver=0x3d5cee0, e=0x38d4510) at kernel/qapplication.cpp:4365
#14 0x00007f5dddca6126 in KApplication::notify (this=0x16edd00, receiver=0x3d5cee0, event=0x38d4510) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007f5ddcff7afc in QCoreApplication::notifyInternal (this=0x16edd00, receiver=0x3d5cee0, event=0x38d4510) at kernel/qcoreapplication.cpp:787
#16 0x00007f5ddcffb51f in sendEvent (event=0x38d4510, receiver=0x3d5cee0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x167f430) at kernel/qcoreapplication.cpp:1428
#18 0x00007f5ddcffb7c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007f5de013c1a3 in kdemain (argc=1, argv=0x7fffe2a94fb8) at ../../../../plasma/desktop/shell/main.cpp:120
#20 0x00007f5ddfd7d30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffe2a94fb8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffe2a94fa8) at libc-start.c:226
#21 0x0000000000400671 in _start ()

Possible duplicates by query: bug 286031, bug 286027, bug 285724, bug 285717, bug 285715.

Reported using DrKonqi