Bug 285270

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 x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
plasma-desktop (KDE 4.7.2, Kubuntu 11.10, 64 bit) has crashed on logout.

-- Backtrace:
Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f62cdebf7a0 (LWP 2038))]

Thread 9 (Thread 0x7f62afa87700 (LWP 2039)):
#0  0x00007f62c1d3a67a in g_main_context_check (context=0x22b9a60, max_priority=<optimized out>, fds=<optimized out>, n_fds=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2993
#1  0x00007f62c1d3af82 in g_main_context_iterate (context=0x22b9a60, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3086
#2  0x00007f62c1d3b429 in g_main_context_iteration (context=0x22b9a60, may_block=1) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3152
#3  0x00007f62ca9a1f3e in QEventDispatcherGlib::processEvents (this=0x22b9120, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f62ca975cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f62ca975ef7 in QEventLoop::exec (this=0x7f62afa86db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f62ca88d27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f62ca958cbf in QInotifyFileSystemWatcherEngine::run (this=0x22b8a40) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f62ca88fd05 in QThreadPrivate::start (arg=0x22b8a40) at thread/qthread_unix.cpp:331
#9  0x00007f62c2847efc in start_thread (arg=0x7f62afa87700) at pthread_create.c:304
#10 0x00007f62cd7bb89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f62a011a700 (LWP 2042)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f62a0119ad0 in ?? ()
#2  0x00007ffff0f937e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 7 (Thread 0x7f629de4b700 (LWP 4680)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f62ca8901ab in wait (time=18446744073709551615, this=0x22ceb20) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x22df6e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f62c668a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x238e890, th=0x337dc10) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f62c668ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x22bcca0, th=0x337dc10) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f62c668bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f629de4ae00, parent=0x238e890, th=0x337dc10) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f62c668bd5b in ThreadWeaver::Thread::run (this=0x337dc10) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f62ca88fd05 in QThreadPrivate::start (arg=0x337dc10) at thread/qthread_unix.cpp:331
#8  0x00007f62c2847efc in start_thread (arg=0x7f629de4b700) at pthread_create.c:304
#9  0x00007f62cd7bb89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f629e853700 (LWP 4681)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f62ca8901ab in wait (time=18446744073709551615, this=0x22ceb20) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x22df6e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f62c668a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x238e890, th=0x4d64c80) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f62c668ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x22bcca0, th=0x4d64c80) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f62c668bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f629e852e00, parent=0x238e890, th=0x4d64c80) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f62c668bd5b in ThreadWeaver::Thread::run (this=0x4d64c80) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f62ca88fd05 in QThreadPrivate::start (arg=0x4d64c80) at thread/qthread_unix.cpp:331
#8  0x00007f62c2847efc in start_thread (arg=0x7f629e853700) at pthread_create.c:304
#9  0x00007f62cd7bb89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f629997d700 (LWP 4682)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f62ca8901ab in wait (time=18446744073709551615, this=0x22ceb20) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x22df6e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f62c668a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x238e890, th=0x5f2c970) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f62c668ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x22bcca0, th=0x5f2c970) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f62c668bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f629997ce00, parent=0x238e890, th=0x5f2c970) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f62c668bd5b in ThreadWeaver::Thread::run (this=0x5f2c970) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f62ca88fd05 in QThreadPrivate::start (arg=0x5f2c970) at thread/qthread_unix.cpp:331
#8  0x00007f62c2847efc in start_thread (arg=0x7f629997d700) at pthread_create.c:304
#9  0x00007f62cd7bb89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f629917c700 (LWP 4683)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f62ca8901ab in wait (time=18446744073709551615, this=0x22ceb20) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x22df6e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f62c668a864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x238e890, th=0x2e299d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f62c668ce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x22bcca0, th=0x2e299d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f62c668bccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f629917be00, parent=0x238e890, th=0x2e299d0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f62c668bd5b in ThreadWeaver::Thread::run (this=0x2e299d0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f62ca88fd05 in QThreadPrivate::start (arg=0x2e299d0) at thread/qthread_unix.cpp:331
#8  0x00007f62c2847efc in start_thread (arg=0x7f629917c700) at pthread_create.c:304
#9  0x00007f62cd7bb89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f62983ba700 (LWP 16889)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f62c8e49c2c in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f62c8e49d59 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f62c2847efc in start_thread (arg=0x7f62983ba700) at pthread_create.c:304
#4  0x00007f62cd7bb89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f6297bb9700 (LWP 16890)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f6297bb8b20 in ?? ()
#2  0x00007ffff0f937e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (Thread 0x7f62cdebf7a0 (LWP 2038)):
[KCrash Handler]
#6  0x0000000001d960d8 in ?? ()
#7  0x00007f62add97b96 in TaskGroupItem::~TaskGroupItem (this=0x3307990, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f62add97c49 in TaskGroupItem::~TaskGroupItem (this=0x3307990, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007f62ca98da88 in QObject::event (this=0x3307990, e=<optimized out>) at kernel/qobject.cpp:1200
#10 0x00007f62ca34589b in QGraphicsWidget::event (this=0x3307990, event=0x79352b0) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007f62c9d27424 in notify_helper (e=0x79352b0, receiver=0x3307990, this=0x1c2eb60) at kernel/qapplication.cpp:4486
#12 QApplicationPrivate::notify_helper (this=0x1c2eb60, receiver=0x3307990, e=0x79352b0) at kernel/qapplication.cpp:4458
#13 0x00007f62c9d2c291 in QApplication::notify (this=0x1c200a0, receiver=0x3307990, e=0x79352b0) at kernel/qapplication.cpp:4365
#14 0x00007f62cb625126 in KApplication::notify (this=0x1c200a0, receiver=0x3307990, event=0x79352b0) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007f62ca976afc in QCoreApplication::notifyInternal (this=0x1c200a0, receiver=0x3307990, event=0x79352b0) at kernel/qcoreapplication.cpp:787
#16 0x00007f62ca97a51f in sendEvent (event=0x79352b0, receiver=0x3307990) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x1bb0430) at kernel/qcoreapplication.cpp:1428
#18 0x00007f62ca97a7c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007f62cdaba1a3 in kdemain (argc=1, argv=0x7ffff0e60288) at ../../../../plasma/desktop/shell/main.cpp:120
#20 0x00007f62cd6fb30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7ffff0e60288, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffff0e60278) at libc-start.c:226
#21 0x0000000000400671 in _start ()

Possible duplicates by query: bug 285205, bug 285180, bug 285104, bug 285045, bug 285019.

Reported using DrKonqi