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: Send mail with thunderbird ( no attached files.).
The mail contain only formated text. The bug occured just when i click on "send" button.

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fa6effe07c0 (LWP 1842))]

Thread 3 (Thread 0x7fa6cca2b700 (LWP 1843)):
#0  0x00007fa6e4957034 in __pthread_mutex_lock (mutex=0x1624178) at pthread_mutex_lock.c:61
#1  0x00007fa6e3e48414 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa6ecaaef3e in QEventDispatcherGlib::processEvents (this=0x15e6fb0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#3  0x00007fa6eca82cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#4  0x00007fa6eca82ef7 in QEventLoop::exec (this=0x7fa6cca2acd0, flags=...) at kernel/qeventloop.cpp:201
#5  0x00007fa6ec99a27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#6  0x00007fa6eca65cbf in QInotifyFileSystemWatcherEngine::run (this=0x15f2710) at io/qfilesystemwatcher_inotify.cpp:248
#7  0x00007fa6ec99cd05 in QThreadPrivate::start (arg=0x15f2710) at thread/qthread_unix.cpp:331
#8  0x00007fa6e116156c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007fa6e4954efc in start_thread (arg=0x7fa6cca2b700) at pthread_create.c:304
#10 0x00007fa6ef8c989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fa6c7db3700 (LWP 1844)):
#0  0x00007fff2fb4192c in clock_gettime ()
#1  0x00007fa6e40fd07b in __GI_clock_gettime (clock_id=1, tp=0x7fa6c7db2a40) at ../sysdeps/unix/clock_gettime.c:100
#2  0x00007fa6ec9ed074 in do_gettime (frac=0x7fa6c7db2a58, sec=0x7fa6c7db2a50) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007fa6ecaaf6ed in QTimerInfoList::updateCurrentTime (this=0x12a5ef0) at kernel/qeventdispatcher_unix.cpp:339
#5  0x00007fa6ecaafa33 in QTimerInfoList::timerWait (this=0x12a5ef0, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#6  0x00007fa6ecaae44c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7fa6c7db2b3c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007fa6ecaae4f5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007fa6e3e46ff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fa6e3e47dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fa6e3e48429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fa6ecaaef3e in QEventDispatcherGlib::processEvents (this=0x199f650, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#12 0x00007fa6eca82cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007fa6eca82ef7 in QEventLoop::exec (this=0x7fa6c7db2cd0, flags=...) at kernel/qeventloop.cpp:201
#14 0x00007fa6ec99a27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#15 0x00007fa6eca65cbf in QInotifyFileSystemWatcherEngine::run (this=0x1977630) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007fa6ec99cd05 in QThreadPrivate::start (arg=0x1977630) at thread/qthread_unix.cpp:331
#17 0x00007fa6e116156c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#18 0x00007fa6e4954efc in start_thread (arg=0x7fa6c7db3700) at pthread_create.c:304
#19 0x00007fa6ef8c989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#20 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fa6effe07c0 (LWP 1842)):
[KCrash Handler]
#6  isNull (this=0x4c7a) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#7  operator! (this=0x4c7a) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#8  TaskManager::TaskItem::task (this=0x1d60480) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007fa6d35ff112 in WindowTaskItem::publishIconGeometry (this=0x40239f0) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#10 0x00007fa6d360db7c in AbstractTaskItem::timerEvent (this=0x40239f0, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#11 0x00007fa6eca9a789 in QObject::event (this=0x40239f0, e=<optimized out>) at kernel/qobject.cpp:1181
#12 0x00007fa6ec45289b in QGraphicsWidget::event (this=0x40239f0, event=0x7fff2fb092e0) at graphicsview/qgraphicswidget.cpp:1455
#13 0x00007fa6ebe34424 in notify_helper (e=0x7fff2fb092e0, receiver=0x40239f0, this=0xd82440) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0xd82440, receiver=0x40239f0, e=0x7fff2fb092e0) at kernel/qapplication.cpp:4458
#15 0x00007fa6ebe39291 in QApplication::notify (this=0xd6f3d0, receiver=0x40239f0, e=0x7fff2fb092e0) at kernel/qapplication.cpp:4365
#16 0x00007fa6ed732126 in KApplication::notify (this=0xd6f3d0, receiver=0x40239f0, event=0x7fff2fb092e0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007fa6eca83afc in QCoreApplication::notifyInternal (this=0xd6f3d0, receiver=0x40239f0, event=0x7fff2fb092e0) at kernel/qcoreapplication.cpp:787
#18 0x00007fa6ecab0d62 in sendEvent (event=0x7fff2fb092e0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QTimerInfoList::activateTimers (this=0xd7bcf0) at kernel/qeventdispatcher_unix.cpp:603
#20 0x00007fa6ecaae538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#21 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#22 0x00007fa6e3e47a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fa6e3e48258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fa6e3e48429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fa6ecaaeed6 in QEventDispatcherGlib::processEvents (this=0xcb9f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#26 0x00007fa6ebedc07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007fa6eca82cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007fa6eca82ef7 in QEventLoop::exec (this=0x7fff2fb09570, flags=...) at kernel/qeventloop.cpp:201
#29 0x00007fa6eca87789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0x00007fa6efbc81a3 in kdemain (argc=1, argv=0x7fff2fb09958) at ../../../../plasma/desktop/shell/main.cpp:120
#31 0x00007fa6ef80930d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff2fb09958, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff2fb09948) at libc-start.c:226
#32 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 287460.

Possible duplicates by query: bug 290993, bug 290969, bug 290943, bug 290926, bug 290881.

Reported using DrKonqi