Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:  Attempting shutdown; there seem to be a few different ways in which this sytem will then crash.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb6b83730 (LWP 1640))]

Thread 4 (Thread 0xafafbb70 (LWP 1642)):
#0  0x03f37dbd in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x006f3f14 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0x07ba00c3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x07ba0990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x07ba0c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x05763b37 in QEventDispatcherGlib::processEvents (this=0x8b82450, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x057341dd in QEventLoop::processEvents (this=0xafafb290, flags=...) at kernel/qeventloop.cpp:149
#7  0x05734421 in QEventLoop::exec (this=0xafafb290, flags=...) at kernel/qeventloop.cpp:201
#8  0x0563790b in QThread::exec (this=0x8b28068) at thread/qthread.cpp:498
#9  0x05714e2d in QInotifyFileSystemWatcherEngine::run (this=0x8b28068) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x0563a7b3 in QThreadPrivate::start (arg=0x8b28068) at thread/qthread_unix.cpp:331
#11 0x03f35d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x006e60ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xaf0ffb70 (LWP 1643)):
#0  0x07b9fe77 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0x07ba08f0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x07ba0c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x05763b37 in QEventDispatcherGlib::processEvents (this=0xaf100be0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x057341dd in QEventLoop::processEvents (this=0xaf0ff290, flags=...) at kernel/qeventloop.cpp:149
#5  0x05734421 in QEventLoop::exec (this=0xaf0ff290, flags=...) at kernel/qeventloop.cpp:201
#6  0x0563790b in QThread::exec (this=0x8ba4da8) at thread/qthread.cpp:498
#7  0x05714e2d in QInotifyFileSystemWatcherEngine::run (this=0x8ba4da8) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x0563a7b3 in QThreadPrivate::start (arg=0x8ba4da8) at thread/qthread_unix.cpp:331
#9  0x03f35d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#10 0x006e60ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xad8fcb70 (LWP 1649)):
#0  0x004a7416 in __kernel_vsyscall ()
#1  0x006d740e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x07baf34b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x07ba0896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x07ba0f9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x06fc9cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0x07bc75f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x03f35d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x006e60ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb6b83730 (LWP 1640)):
[KCrash Handler]
#7  0x00000010 in ?? ()
#8  0x0541496f in TaskGroupItem::~TaskGroupItem (this=0x9792118, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#9  0x05414a42 in TaskGroupItem::~TaskGroupItem (this=0x9792118, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#10 0x057485f3 in qDeleteInEventHandler (o=0x9792118) at kernel/qobject.cpp:3986
#11 0x0574db80 in QObject::event (this=0x9792118, e=0x949eeb8) at kernel/qobject.cpp:1200
#12 0x01a54bd4 in QGraphicsWidget::event (this=0x9792118, event=0x949eeb8) at graphicsview/qgraphicswidget.cpp:1455
#13 0x01395d54 in notify_helper (e=0x949eeb8, receiver=0x9792118, this=0x82fc210) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x82fc210, receiver=0x9792118, e=0x949eeb8) at kernel/qapplication.cpp:4458
#15 0x0139b103 in QApplication::notify (this=0x949eeb8, receiver=0x9792118, e=0x949eeb8) at kernel/qapplication.cpp:3886
#16 0x00fec681 in KApplication::notify (this=0x82ef150, receiver=0x9792118, event=0x949eeb8) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x0573519e in QCoreApplication::notifyInternal (this=0x82ef150, receiver=0x9792118, event=0x949eeb8) at kernel/qcoreapplication.cpp:787
#18 0x05738f93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x82b22e0) at kernel/qcoreapplication.cpp:1428
#20 0x057390ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=52) at kernel/qcoreapplication.cpp:1321
#21 0x057391d3 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#22 0x013938f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#23 0x00b1a18b in kdemain (argc=1, argv=0xbf9d0fa4) at ../../../../plasma/desktop/shell/main.cpp:120
#24 0x0804850b in main (argc=1, argv=0xbf9d0fa4) at plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 275286.

Possible duplicates by query: bug 285045, bug 283724, bug 283669, bug 283533, bug 282772.

Reported using DrKonqi