Bug 284594

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.1 (4.7.1)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
Traté de apagar la computadora usando el lanzador de aplicaciones de KDE, y al apretar el botón de apagar se produjo el fallo.

The crash can be reproduced every time.

-- Backtrace:
Application: Shell de escritorio Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f89cc58b7a0 (LWP 1956))]

Thread 5 (Thread 0x7f89a2f86700 (LWP 1958)):
#0  0x00007f89cbe63773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f89c03f0f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f89c03f1429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f89c9057f3e in QEventDispatcherGlib::processEvents (this=0x157d870, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f89c902bcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f89c902bef7 in QEventLoop::exec (this=0x7f89a2f85db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f89c8f4327f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f89c900ecbf in QInotifyFileSystemWatcherEngine::run (this=0x159de00) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f89c8f45d05 in QThreadPrivate::start (arg=0x159de00) at thread/qthread_unix.cpp:331
#9  0x00007f89c0efdefc in start_thread (arg=0x7f89a2f86700) at pthread_create.c:304
#10 0x00007f89cbe6f89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f89a0e6a700 (LWP 1959)):
#0  0x00007f89c03f005a in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f89c03f0dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f89c03f1429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f89c9057f3e in QEventDispatcherGlib::processEvents (this=0x16331c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f89c902bcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f89c902bef7 in QEventLoop::exec (this=0x7f89a0e69db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f89c8f4327f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f89c900ecbf in QInotifyFileSystemWatcherEngine::run (this=0x16324a0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f89c8f45d05 in QThreadPrivate::start (arg=0x16324a0) at thread/qthread_unix.cpp:331
#9  0x00007f89c0efdefc in start_thread (arg=0x7f89a0e6a700) at pthread_create.c:304
#10 0x00007f89cbe6f89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f899f2c3700 (LWP 1961)):
#0  0x00007f89cbe63773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f89c03f0f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f89c03f1792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f899fda1516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f89c04162b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f89c0efdefc in start_thread (arg=0x7f899f2c3700) at pthread_create.c:304
#6  0x00007f89cbe6f89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f8997cb5700 (LWP 1973)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f89c605cfe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f89c605d019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f89c0efdefc in start_thread (arg=0x7f8997cb5700) at pthread_create.c:304
#4  0x00007f89cbe6f89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f89cc58b7a0 (LWP 1956)):
[KCrash Handler]
#6  0x00000000008d7470 in ?? ()
#7  0x00007f89b0853a96 in TaskGroupItem::~TaskGroupItem (this=0x3991570, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f89b0853b49 in TaskGroupItem::~TaskGroupItem (this=0x3991570, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007f89c9043a88 in QObject::event (this=0x3991570, e=<optimized out>) at kernel/qobject.cpp:1200
#10 0x00007f89c89fb89b in QGraphicsWidget::event (this=0x3991570, event=0x3fbba10) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007f89c83dd424 in notify_helper (e=0x3fbba10, receiver=0x3991570, this=0x7731b0) at kernel/qapplication.cpp:4486
#12 QApplicationPrivate::notify_helper (this=0x7731b0, receiver=0x3991570, e=0x3fbba10) at kernel/qapplication.cpp:4458
#13 0x00007f89c83e2291 in QApplication::notify (this=0x74f860, receiver=0x3991570, e=0x3fbba10) at kernel/qapplication.cpp:4365
#14 0x00007f89c9cdb1e6 in KApplication::notify (this=0x74f860, receiver=0x3991570, event=0x3fbba10) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007f89c902cafc in QCoreApplication::notifyInternal (this=0x74f860, receiver=0x3991570, event=0x3fbba10) at kernel/qcoreapplication.cpp:787
#16 0x00007f89c903051f in sendEvent (event=0x3fbba10, receiver=0x3991570) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x6f5430) at kernel/qcoreapplication.cpp:1428
#18 0x00007f89c90307c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007f89cc16e1a3 in kdemain (argc=1, argv=0x7ffff61059b8) at ../../../../plasma/desktop/shell/main.cpp:120
#20 0x00007f89cbdaf30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7ffff61059b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffff61059a8) at libc-start.c:226
#21 0x0000000000400671 in _start ()

Possible duplicates by query: bug 284150, bug 284034, bug 283747, bug 283724, bug 283669.

Reported using DrKonqi