Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-13-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: I was using Mp3diags and rescaned my collection with Clementine, when all of the sudden it complains about some backend errors/problems. Clementine became unresponsive even after trying to retart it. I then chose to log out and restart xorg when the desktop crashes. As I write this, the desktop is completely unresponsive, save for the crash assistant.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f55b8b9f7c0 (LWP 1771))]

Thread 4 (Thread 0x7f5594131700 (LWP 1829)):
#0  0x00007f55aca08708 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f55aca08f82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f55aca09429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f55b566ff3e in QEventDispatcherGlib::processEvents (this=0x1e09160, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f55b5643cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f55b5643ef7 in QEventLoop::exec (this=0x7f5594130cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f55b555b27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f55b5626cbf in QInotifyFileSystemWatcherEngine::run (this=0x1e089d0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f55b555dd05 in QThreadPrivate::start (arg=0x1e089d0) at thread/qthread_unix.cpp:331
#9  0x00007f55a9d2256c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f55ad515efc in start_thread (arg=0x7f5594131700) at pthread_create.c:304
#11 0x00007f55b848989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f55918fc700 (LWP 1830)):
#0  0x00007f55aca08f9a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f55aca09429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f55b566ff3e in QEventDispatcherGlib::processEvents (this=0x1fe9b70, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#3  0x00007f55b5643cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#4  0x00007f55b5643ef7 in QEventLoop::exec (this=0x7f55918fbcd0, flags=...) at kernel/qeventloop.cpp:201
#5  0x00007f55b555b27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#6  0x00007f55b5626cbf in QInotifyFileSystemWatcherEngine::run (this=0x1fdfa90) at io/qfilesystemwatcher_inotify.cpp:248
#7  0x00007f55b555dd05 in QThreadPrivate::start (arg=0x1fdfa90) at thread/qthread_unix.cpp:331
#8  0x00007f55a9d2256c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f55ad515efc in start_thread (arg=0x7f55918fc700) at pthread_create.c:304
#10 0x00007f55b848989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f5587c53700 (LWP 1838)):
#0  0x00007f55ad518034 in __pthread_mutex_lock (mutex=0x2982008) at pthread_mutex_lock.c:61
#1  0x00007f55aca08f2f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f55aca09792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5588731516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f55aca2e2b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f55a9d2256c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007f55ad515efc in start_thread (arg=0x7f5587c53700) at pthread_create.c:304
#7  0x00007f55b848989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f55b8b9f7c0 (LWP 1771)):
[KCrash Handler]
#6  0x00007f55b54af790 in vtable for QGraphicsLayoutItem () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#7  0x00007f559d373b96 in TaskGroupItem::~TaskGroupItem (this=0x3166e40, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f559d373c49 in TaskGroupItem::~TaskGroupItem (this=0x3166e40, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007f55b565ba88 in QObject::event (this=0x3166e40, e=<optimized out>) at kernel/qobject.cpp:1200
#10 0x00007f55b501389b in QGraphicsWidget::event (this=0x3166e40, event=0x3514030) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007f55b49f5424 in notify_helper (e=0x3514030, receiver=0x3166e40, this=0x13fdc70) at kernel/qapplication.cpp:4486
#12 QApplicationPrivate::notify_helper (this=0x13fdc70, receiver=0x3166e40, e=0x3514030) at kernel/qapplication.cpp:4458
#13 0x00007f55b49fa291 in QApplication::notify (this=0x13d9c30, receiver=0x3166e40, e=0x3514030) at kernel/qapplication.cpp:4365
#14 0x00007f55b62f3126 in KApplication::notify (this=0x13d9c30, receiver=0x3166e40, event=0x3514030) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007f55b5644afc in QCoreApplication::notifyInternal (this=0x13d9c30, receiver=0x3166e40, event=0x3514030) at kernel/qcoreapplication.cpp:787
#16 0x00007f55b564851f in sendEvent (event=0x3514030, receiver=0x3166e40) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x133a430) at kernel/qcoreapplication.cpp:1428
#18 0x00007f55b56487c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007f55b87881a3 in kdemain (argc=1, argv=0x7fffb8bfd338) at ../../../../plasma/desktop/shell/main.cpp:120
#20 0x00007f55b83c930d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffb8bfd338, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb8bfd328) at libc-start.c:226
#21 0x0000000000400671 in _start ()

Possible duplicates by query: bug 287205, bug 286733, bug 285707, bug 285543, bug 285045.

Reported using DrKonqi