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 was running the following script:
svn diff --diff-cmd kdiff3 $1 --non-interactive

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f98336077c0 (LWP 2441))]

Thread 3 (Thread 0x7f981397c700 (LWP 2442)):
#0  0x00007f9827f841fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x269bbb8) at pthread_mutex_unlock.c:290
#2  0x00007f9827472fe4 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9827473dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9827474429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f98300daf3e in QEventDispatcherGlib::processEvents (this=0x2656340, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f98300aecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f98300aeef7 in QEventLoop::exec (this=0x7f981397bcd0, flags=...) at kernel/qeventloop.cpp:201
#8  0x00007f982ffc627f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#9  0x00007f9830091cbf in QInotifyFileSystemWatcherEngine::run (this=0x266de20) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f982ffc8d05 in QThreadPrivate::start (arg=0x266de20) at thread/qthread_unix.cpp:331
#11 0x00007f982478c2da in ?? () from /usr/lib/libGL.so.1
#12 0x00007f9827f80efc in start_thread (arg=0x7f981397c700) at pthread_create.c:304
#13 0x00007f9832ef589d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f9807dbb700 (LWP 2443)):
#0  0x00007f9832ee9773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f9827473f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9827474429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f98300daf3e in QEventDispatcherGlib::processEvents (this=0x7f980c000e30, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f98300aecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f98300aeef7 in QEventLoop::exec (this=0x7f9807dbacd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f982ffc627f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f9830091cbf in QInotifyFileSystemWatcherEngine::run (this=0x2d8be30) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f982ffc8d05 in QThreadPrivate::start (arg=0x2d8be30) at thread/qthread_unix.cpp:331
#9  0x00007f982478c2da in ?? () from /usr/lib/libGL.so.1
#10 0x00007f9827f80efc in start_thread (arg=0x7f9807dbb700) at pthread_create.c:304
#11 0x00007f9832ef589d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f98336077c0 (LWP 2441)):
[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=0x35c10c0) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007f981116a068 in WindowTaskItem::publishIconGeometry (this=0x32cf430, rect=...) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:130
#10 0x00007f9811179d24 in TaskGroupItem::publishIconGeometry (this=<optimized out>, rect=...) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:1432
#11 0x00007f9811179aa5 in publishIconGeometry (this=0x23db300) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:1424
#12 TaskGroupItem::publishIconGeometry (this=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:1416
#13 0x00007f9811178b7c in AbstractTaskItem::timerEvent (this=0x23db300, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#14 0x00007f98300c6789 in QObject::event (this=0x23db300, e=<optimized out>) at kernel/qobject.cpp:1181
#15 0x00007f982fa7e89b in QGraphicsWidget::event (this=0x23db300, event=0x7fff49da83d0) at graphicsview/qgraphicswidget.cpp:1455
#16 0x00007f982f460424 in notify_helper (e=0x7fff49da83d0, receiver=0x23db300, this=0x21d8ce0) at kernel/qapplication.cpp:4486
#17 QApplicationPrivate::notify_helper (this=0x21d8ce0, receiver=0x23db300, e=0x7fff49da83d0) at kernel/qapplication.cpp:4458
#18 0x00007f982f465291 in QApplication::notify (this=0x21c3000, receiver=0x23db300, e=0x7fff49da83d0) at kernel/qapplication.cpp:4365
#19 0x00007f9830d5e126 in KApplication::notify (this=0x21c3000, receiver=0x23db300, event=0x7fff49da83d0) at ../../kdeui/kernel/kapplication.cpp:311
#20 0x00007f98300afafc in QCoreApplication::notifyInternal (this=0x21c3000, receiver=0x23db300, event=0x7fff49da83d0) at kernel/qcoreapplication.cpp:787
#21 0x00007f98300dcd62 in sendEvent (event=0x7fff49da83d0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#22 QTimerInfoList::activateTimers (this=0x21dc320) at kernel/qeventdispatcher_unix.cpp:603
#23 0x00007f98300da538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#24 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#25 0x00007f9827473a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f9827474258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f9827474429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f98300daed6 in QEventDispatcherGlib::processEvents (this=0x211ff40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#29 0x00007f982f50807e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#30 0x00007f98300aecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#31 0x00007f98300aeef7 in QEventLoop::exec (this=0x7fff49da8660, flags=...) at kernel/qeventloop.cpp:201
#32 0x00007f98300b3789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#33 0x00007f98331f41a3 in kdemain (argc=1, argv=0x7fff49da8a48) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x00007f9832e3530d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff49da8a48, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff49da8a38) at libc-start.c:226
#35 0x0000000000400671 in _start ()

Possible duplicates by query: bug 289392, bug 289221, bug 289215, bug 289169, bug 289073.

Reported using DrKonqi