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:

Installing an application through Codeweaver program. The installation became unresponsive and I canceled the installation through the Codeweaver program. Slightly after this, the KDE Plasma interface crashed.

- Unusual behavior I noticed:

Whether this was connected or not, I have no idea. The installation progress on a Codeweaver program was unresponsive.

- Custom settings of the application:

I have a dual monitor setup using the proprietary ATI Radeon driver. This works very well with no problems. I have multiple widgets added to both monitors. I use 4 workspaces. I removed the normal KDE menu and put a KDE Application Launcher Menu in classic mode.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7ffd65c617a0 (LWP 1956))]

Thread 4 (Thread 0x7ffd3f804700 (LWP 1957)):
#0  __pthread_mutex_lock (mutex=0x138ec18) at pthread_mutex_lock.c:131
#1  0x00007ffd59acb044 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffd59acb429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffd62731f3e in QEventDispatcherGlib::processEvents (this=0x13c1400, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007ffd62705cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007ffd62705ef7 in QEventLoop::exec (this=0x7ffd3f803db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007ffd6261d27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007ffd626e8cbf in QInotifyFileSystemWatcherEngine::run (this=0x138c440) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007ffd6261fd05 in QThreadPrivate::start (arg=0x138c440) at thread/qthread_unix.cpp:331
#9  0x00007ffd5a5d7efc in start_thread (arg=0x7ffd3f804700) at pthread_create.c:304
#10 0x00007ffd6554c89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7ffd3ebd7700 (LWP 1958)):
#0  0x00007ffd5a5db1fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x20f2378) at pthread_mutex_unlock.c:290
#2  0x00007ffd59aca3f5 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffd59acae6a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffd59acb429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffd62731f3e in QEventDispatcherGlib::processEvents (this=0x20f1fa0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007ffd62705cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007ffd62705ef7 in QEventLoop::exec (this=0x7ffd3ebd6db0, flags=...) at kernel/qeventloop.cpp:201
#8  0x00007ffd6261d27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#9  0x00007ffd626e8cbf in QInotifyFileSystemWatcherEngine::run (this=0x20f1070) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007ffd6261fd05 in QThreadPrivate::start (arg=0x20f1070) at thread/qthread_unix.cpp:331
#11 0x00007ffd5a5d7efc in start_thread (arg=0x7ffd3ebd7700) at pthread_create.c:304
#12 0x00007ffd6554c89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7ffd377fe700 (LWP 1965)):
#0  0x00007ffd65540773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007ffd59acaf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffd59acb792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffd3c892516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ffd59af02b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffd5a5d7efc in start_thread (arg=0x7ffd377fe700) at pthread_create.c:304
#6  0x00007ffd6554c89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ffd65c617a0 (LWP 1956)):
[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=0x3c182d0) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007ffd4cb5d112 in WindowTaskItem::publishIconGeometry (this=0x4ed2190) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#10 0x00007ffd4cb6bb7c in AbstractTaskItem::timerEvent (this=0x4ed2190, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#11 0x00007ffd6271d789 in QObject::event (this=0x4ed2190, e=<optimized out>) at kernel/qobject.cpp:1181
#12 0x00007ffd620d589b in QGraphicsWidget::event (this=0x4ed2190, event=0x7fff770df9a0) at graphicsview/qgraphicswidget.cpp:1455
#13 0x00007ffd61ab7424 in notify_helper (e=0x7fff770df9a0, receiver=0x4ed2190, this=0x10c2690) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x10c2690, receiver=0x4ed2190, e=0x7fff770df9a0) at kernel/qapplication.cpp:4458
#15 0x00007ffd61abc291 in QApplication::notify (this=0x10c0cd0, receiver=0x4ed2190, e=0x7fff770df9a0) at kernel/qapplication.cpp:4365
#16 0x00007ffd633b5126 in KApplication::notify (this=0x10c0cd0, receiver=0x4ed2190, event=0x7fff770df9a0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007ffd62706afc in QCoreApplication::notifyInternal (this=0x10c0cd0, receiver=0x4ed2190, event=0x7fff770df9a0) at kernel/qcoreapplication.cpp:787
#18 0x00007ffd62733d62 in sendEvent (event=0x7fff770df9a0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QTimerInfoList::activateTimers (this=0x10c5880) at kernel/qeventdispatcher_unix.cpp:603
#20 0x00007ffd62731538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#21 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#22 0x00007ffd59acaa5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007ffd59acb258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007ffd59acb429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007ffd62731ed6 in QEventDispatcherGlib::processEvents (this=0x1048f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#26 0x00007ffd61b5f07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007ffd62705cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007ffd62705ef7 in QEventLoop::exec (this=0x7fff770dfc30, flags=...) at kernel/qeventloop.cpp:201
#29 0x00007ffd6270a789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0x00007ffd6584b1a3 in kdemain (argc=1, argv=0x7fff770e0018) at ../../../../plasma/desktop/shell/main.cpp:120
#31 0x00007ffd6548c30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff770e0018, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff770e0008) at libc-start.c:226
#32 0x0000000000400671 in _start ()

Possible duplicates by query: bug 289579, bug 289577, bug 289559, bug 289549, bug 289513.

Reported using DrKonqi