Bug 290881

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-15-generic x86_64
Distribution: Ubuntu 11.10

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

plasma-desktop crashed after closing kmail... Before i choose a jpg file and right-clicked it to send to kmail then i wanted to close kmail without any change in kmail and it crashed!

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f29227ef7a0 (LWP 2226))]

Thread 3 (Thread 0x7f28ff9f8700 (LWP 2227)):
#0  0x00007f29220c4773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f291664ef68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f291664f429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f291f2b5f3e in QEventDispatcherGlib::processEvents (this=0x2bc1ad0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f291f289cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f291f289ef7 in QEventLoop::exec (this=0x7f28ff9f7db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f291f1a127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f291f26ccbf in QInotifyFileSystemWatcherEngine::run (this=0x2bc0360) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f291f1a3d05 in QThreadPrivate::start (arg=0x2bc0360) at thread/qthread_unix.cpp:331
#9  0x00007f291715befc in start_thread (arg=0x7f28ff9f8700) at pthread_create.c:304
#10 0x00007f29220d089d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f28fceff700 (LWP 2228)):
#0  0x00007f29220c4773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f291664ef68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f291664f429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f291f2b5f3e in QEventDispatcherGlib::processEvents (this=0x2de19f0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f291f289cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f291f289ef7 in QEventLoop::exec (this=0x7f28fcefedb0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f291f1a127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f291f26ccbf in QInotifyFileSystemWatcherEngine::run (this=0x2de0c60) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f291f1a3d05 in QThreadPrivate::start (arg=0x2de0c60) at thread/qthread_unix.cpp:331
#9  0x00007f291715befc in start_thread (arg=0x7f28fceff700) at pthread_create.c:304
#10 0x00007f29220d089d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f29227ef7a0 (LWP 2226)):
[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=0x4217580) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007f2908e5b112 in WindowTaskItem::publishIconGeometry (this=0x32cfa70) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#10 0x00007f2908e69b7c in AbstractTaskItem::timerEvent (this=0x32cfa70, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#11 0x00007f291f2a1789 in QObject::event (this=0x32cfa70, e=<optimized out>) at kernel/qobject.cpp:1181
#12 0x00007f291ec5989b in QGraphicsWidget::event (this=0x32cfa70, event=0x7ffffdb18a00) at graphicsview/qgraphicswidget.cpp:1455
#13 0x00007f291e63b424 in notify_helper (e=0x7ffffdb18a00, receiver=0x32cfa70, this=0x217b060) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x217b060, receiver=0x32cfa70, e=0x7ffffdb18a00) at kernel/qapplication.cpp:4458
#15 0x00007f291e640291 in QApplication::notify (this=0x2164c40, receiver=0x32cfa70, e=0x7ffffdb18a00) at kernel/qapplication.cpp:4365
#16 0x00007f291ff39126 in KApplication::notify (this=0x2164c40, receiver=0x32cfa70, event=0x7ffffdb18a00) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f291f28aafc in QCoreApplication::notifyInternal (this=0x2164c40, receiver=0x32cfa70, event=0x7ffffdb18a00) at kernel/qcoreapplication.cpp:787
#18 0x00007f291f2b7d62 in sendEvent (event=0x7ffffdb18a00, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QTimerInfoList::activateTimers (this=0x2181e70) at kernel/qeventdispatcher_unix.cpp:603
#20 0x00007f291f2b5514 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#21 0x00007f291664ea5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f291664f258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f291664f429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f291f2b5ed6 in QEventDispatcherGlib::processEvents (this=0x2105f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#25 0x00007f291e6e307e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007f291f289cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007f291f289ef7 in QEventLoop::exec (this=0x7ffffdb18c90, flags=...) at kernel/qeventloop.cpp:201
#28 0x00007f291f28e789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#29 0x00007f29223cf1a3 in kdemain (argc=1, argv=0x7ffffdb19078) at ../../../../plasma/desktop/shell/main.cpp:120
#30 0x00007f292201030d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7ffffdb19078, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffffdb19068) at libc-start.c:226
#31 0x0000000000400671 in _start ()

Possible duplicates by query: bug 290870, bug 290859, bug 290813, bug 290810, bug 290795.

Reported using DrKonqi