Bug 289660

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: Linux Mint 12 Lisa

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

I had just closed KMail.  My browser was opened to DuckDuckGo.com's secure site in SRWare Iron 15.0.900.1 (Developer Build 108895 for Linux).

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f6caa30d7a0 (LWP 2038))]

Thread 3 (Thread 0x7f6c85f64700 (LWP 2039)):
#0  0x00007f6ca9bf6773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f6c9e180f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6c9e181429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6ca6de7f3e in QEventDispatcherGlib::processEvents (this=0x20640e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f6ca6dbbcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f6ca6dbbef7 in QEventLoop::exec (this=0x7f6c85f63db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f6ca6cd327f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f6ca6d9ecbf in QInotifyFileSystemWatcherEngine::run (this=0x2063b00) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f6ca6cd5d05 in QThreadPrivate::start (arg=0x2063b00) at thread/qthread_unix.cpp:331
#9  0x00007f6c9ec8defc in start_thread (arg=0x7f6c85f64700) at pthread_create.c:304
#10 0x00007f6ca9c0289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f6c8497c700 (LWP 2040)):
#0  0x00007f6c9e1805a2 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f6c9e180f82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6c9e181429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6ca6de7f3e in QEventDispatcherGlib::processEvents (this=0x14ad0e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f6ca6dbbcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f6ca6dbbef7 in QEventLoop::exec (this=0x7f6c8497bdb0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f6ca6cd327f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f6ca6d9ecbf in QInotifyFileSystemWatcherEngine::run (this=0x1559600) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f6ca6cd5d05 in QThreadPrivate::start (arg=0x1559600) at thread/qthread_unix.cpp:331
#9  0x00007f6c9ec8defc in start_thread (arg=0x7f6c8497c700) at pthread_create.c:304
#10 0x00007f6ca9c0289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f6caa30d7a0 (LWP 2038)):
[KCrash Handler]
#6  isNull (this=0x0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#7  operator! (this=0x0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#8  TaskManager::TaskItem::task (this=0x2c4e390) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007f6c8f4e2112 in WindowTaskItem::publishIconGeometry (this=0x2d40750) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#10 0x00007f6c8f4f0b7c in AbstractTaskItem::timerEvent (this=0x2d40750, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#11 0x00007f6ca6dd3789 in QObject::event (this=0x2d40750, e=<optimized out>) at kernel/qobject.cpp:1181
#12 0x00007f6ca678b89b in QGraphicsWidget::event (this=0x2d40750, event=0x7fffbd637b60) at graphicsview/qgraphicswidget.cpp:1455
#13 0x00007f6ca616d424 in notify_helper (e=0x7fffbd637b60, receiver=0x2d40750, this=0x12f9b70) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x12f9b70, receiver=0x2d40750, e=0x7fffbd637b60) at kernel/qapplication.cpp:4458
#15 0x00007f6ca6172291 in QApplication::notify (this=0x12dde60, receiver=0x2d40750, e=0x7fffbd637b60) at kernel/qapplication.cpp:4365
#16 0x00007f6ca7a6b126 in KApplication::notify (this=0x12dde60, receiver=0x2d40750, event=0x7fffbd637b60) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f6ca6dbcafc in QCoreApplication::notifyInternal (this=0x12dde60, receiver=0x2d40750, event=0x7fffbd637b60) at kernel/qcoreapplication.cpp:787
#18 0x00007f6ca6de9d62 in sendEvent (event=0x7fffbd637b60, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QTimerInfoList::activateTimers (this=0x12fc8d0) at kernel/qeventdispatcher_unix.cpp:603
#20 0x00007f6ca6de7514 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#21 0x00007f6c9e180a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f6c9e181258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f6c9e181429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f6ca6de7ed6 in QEventDispatcherGlib::processEvents (this=0x127ef40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#25 0x00007f6ca621507e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007f6ca6dbbcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007f6ca6dbbef7 in QEventLoop::exec (this=0x7fffbd637df0, flags=...) at kernel/qeventloop.cpp:201
#28 0x00007f6ca6dc0789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#29 0x00007f6ca9f011a3 in kdemain (argc=1, argv=0x7fffbd6381d8) at ../../../../plasma/desktop/shell/main.cpp:120
#30 0x00007f6ca9b4230d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffbd6381d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffbd6381c8) at libc-start.c:226
#31 0x0000000000400671 in _start ()

Possible duplicates by query: bug 289653, bug 289651, bug 289640, bug 289632, bug 289628.

Reported using DrKonqi