Bug 300123

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2) "release 5" (Compiled from sources)
Qt Version: 4.7.4
Operating System: Linux 3.1.10-1.9-desktop i686
Distribution: "openSUSE 12.1 (i586)"

-- Information about the crash:
- What I was doing when the application crashed:
I was Shuting down the computer
- Unusual behavior I noticed:
That error began 15/05/2012 (10:00 pm)
- Custom settings of the application:
I was shutting down openSuse 12.1

The crash can be reproduced every time.

-- Backtrace:
Application: Shell de escritorio Plasma (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb579f710 (LWP 3628))]

Thread 6 (Thread 0xab526b70 (LWP 3629)):
#0  idleTimerSourceCheck (source=0xaac01af0) at kernel/qeventdispatcher_glib.cpp:220
#1  0xb5a17af4 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0xb5a184c0 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0xb5a187fa in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0xb6e018a7 in QEventDispatcherGlib::processEvents (this=0xaac00468, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0xb6dd245d in QEventLoop::processEvents (this=0xab5262b0, flags=...) at kernel/qeventloop.cpp:149
#6  0xb6dd26a1 in QEventLoop::exec (this=0xab5262b0, flags=...) at kernel/qeventloop.cpp:201
#7  0xb6cd575b in QThread::exec (this=0x845fc40) at thread/qthread.cpp:498
#8  0xb6db309d in QInotifyFileSystemWatcherEngine::run (this=0x845fc40) at io/qfilesystemwatcher_inotify.cpp:248
#9  0xb6cd8613 in QThreadPrivate::start (arg=0x845fc40) at thread/qthread_unix.cpp:331
#10 0xb6c5ba7d in start_thread () from /lib/libpthread.so.0
#11 0xb6024abe in clone () from /lib/libc.so.6

Thread 5 (Thread 0xaa0ffb70 (LWP 4646)):
#0  0xb6c5f782 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0xb6cd8b20 in wait (time=4294967295, this=0x84c19a8) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=0x8480838, mutex=0x846c5c0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#3  0xb2c50c96 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x8480820, th=0x8b0d2c8) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0xb2c5378b in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x83e2f28, th=0x8b0d2c8) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:80
#5  0xb2c508ca in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x8480820, th=0x8b0d2c8) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:356
#6  0xb2c5388c in ThreadWeaver::WorkingHardState::applyForWork (this=0x83e2f28, th=0x8b0d2c8) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#7  0xb2c50823 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8480820, th=0x8b0d2c8, previous=0x0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:351
#8  0xb2c538a8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x83e2f28, th=0x8b0d2c8) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:74
#9  0xb2c50823 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8480820, th=0x8b0d2c8, previous=0x8e10388) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:351
#10 0xb2c523c4 in ThreadWeaver::ThreadRunHelper::run (this=0xaa0ff314, parent=0x8480820, th=0x8b0d2c8) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#11 0xb2c5247a in ThreadWeaver::Thread::run (this=0x8b0d2c8) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#12 0xb6cd8613 in QThreadPrivate::start (arg=0x8b0d2c8) at thread/qthread_unix.cpp:331
#13 0xb6c5ba7d in start_thread () from /lib/libpthread.so.0
#14 0xb6024abe in clone () from /lib/libc.so.6

Thread 4 (Thread 0xaaa09b70 (LWP 4647)):
#0  0xb6c5f782 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0xb6cd8b20 in wait (time=4294967295, this=0x84c19a8) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=0x8480838, mutex=0x846c5c0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#3  0xb2c50c96 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x8480820, th=0x88a8bd0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0xb2c5378b in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x83e2f28, th=0x88a8bd0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:80
#5  0xb2c508ca in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x8480820, th=0x88a8bd0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:356
#6  0xb2c5388c in ThreadWeaver::WorkingHardState::applyForWork (this=0x83e2f28, th=0x88a8bd0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#7  0xb2c50823 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8480820, th=0x88a8bd0, previous=0x8e24a28) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:351
#8  0xb2c523c4 in ThreadWeaver::ThreadRunHelper::run (this=0xaaa09314, parent=0x8480820, th=0x88a8bd0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#9  0xb2c5247a in ThreadWeaver::Thread::run (this=0x88a8bd0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#10 0xb6cd8613 in QThreadPrivate::start (arg=0x88a8bd0) at thread/qthread_unix.cpp:331
#11 0xb6c5ba7d in start_thread () from /lib/libpthread.so.0
#12 0xb6024abe in clone () from /lib/libc.so.6

Thread 3 (Thread 0xa9028b70 (LWP 4648)):
#0  0xb6c5f782 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0xb6cd8b20 in wait (time=4294967295, this=0x84c19a8) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=0x8480838, mutex=0x846c5c0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#3  0xb2c50c96 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x8480820, th=0x8e368d0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0xb2c5378b in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x83e2f28, th=0x8e368d0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:80
#5  0xb2c508ca in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x8480820, th=0x8e368d0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:356
#6  0xb2c5388c in ThreadWeaver::WorkingHardState::applyForWork (this=0x83e2f28, th=0x8e368d0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#7  0xb2c50823 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8480820, th=0x8e368d0, previous=0x8e3b9b8) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:351
#8  0xb2c523c4 in ThreadWeaver::ThreadRunHelper::run (this=0xa9028314, parent=0x8480820, th=0x8e368d0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#9  0xb2c5247a in ThreadWeaver::Thread::run (this=0x8e368d0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#10 0xb6cd8613 in QThreadPrivate::start (arg=0x8e368d0) at thread/qthread_unix.cpp:331
#11 0xb6c5ba7d in start_thread () from /lib/libpthread.so.0
#12 0xb6024abe in clone () from /lib/libc.so.6

Thread 2 (Thread 0xa7fdbb70 (LWP 4649)):
#0  0xb6c5f782 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0xb6cd8b20 in wait (time=4294967295, this=0x84c19a8) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=0x8480838, mutex=0x846c5c0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#3  0xb2c50c96 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x8480820, th=0x8630020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0xb2c5378b in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x83e2f28, th=0x8630020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:80
#5  0xb2c508ca in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x8480820, th=0x8630020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:356
#6  0xb2c5388c in ThreadWeaver::WorkingHardState::applyForWork (this=0x83e2f28, th=0x8630020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#7  0xb2c50823 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8480820, th=0x8630020, previous=0x8635fb0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:351
#8  0xb2c523c4 in ThreadWeaver::ThreadRunHelper::run (this=0xa7fdb314, parent=0x8480820, th=0x8630020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#9  0xb2c5247a in ThreadWeaver::Thread::run (this=0x8630020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#10 0xb6cd8613 in QThreadPrivate::start (arg=0x8630020) at thread/qthread_unix.cpp:331
#11 0xb6c5ba7d in start_thread () from /lib/libpthread.so.0
#12 0xb6024abe in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb579f710 (LWP 3628)):
[KCrash Handler]
#6  0xb6c45348 in vtable for QGraphicsLayoutItem () from /usr/lib/libQtGui.so.4
#7  0xaab04bff in TaskGroupItem::~TaskGroupItem (this=0x8f64f38, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0xaab04cd2 in TaskGroupItem::~TaskGroupItem (this=0x8f64f38, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0xb6de6273 in qDeleteInEventHandler (o=0x8f64f38) at kernel/qobject.cpp:3995
#10 0xb6deb868 in QObject::event (this=0x8f64f38, e=0x8e34aa8) at kernel/qobject.cpp:1209
#11 0xb69aeb84 in QGraphicsWidget::event (this=0x8f64f38, event=0x8e34aa8) at graphicsview/qgraphicswidget.cpp:1455
#12 0xb62eef24 in notify_helper (e=0x8e34aa8, receiver=0x8f64f38, this=0x80ed468) at kernel/qapplication.cpp:4481
#13 QApplicationPrivate::notify_helper (this=0x80ed468, receiver=0x8f64f38, e=0x8e34aa8) at kernel/qapplication.cpp:4453
#14 0xb62f42b2 in QApplication::notify (this=0x8e34aa8, receiver=0x8f64f38, e=0x8e34aa8) at kernel/qapplication.cpp:4228
#15 0xb7517681 in KApplication::notify (this=0x80e16b8, receiver=0x8f64f38, event=0x8e34aa8) at /usr/src/debug/kdelibs-4.7.2/kdeui/kernel/kapplication.cpp:311
#16 0xb6dd343e in QCoreApplication::notifyInternal (this=0x80e16b8, receiver=0x8f64f38, event=0x8e34aa8) at kernel/qcoreapplication.cpp:787
#17 0xb6dd6c04 in sendEvent (event=<optimized out>, receiver=<optimized out>) at kernel/qcoreapplication.h:215
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x805b1c0) at kernel/qcoreapplication.cpp:1428
#19 0xb6dd6d4c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=52) at kernel/qcoreapplication.cpp:1321
#20 0xb6dd6e2d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#21 0xb62ecda4 in QApplication::exec () at kernel/qapplication.cpp:3755
#22 0xb1d9c7cb in kdemain (argc=1, argv=0x80a3f78) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/shell/main.cpp:120
#23 0x0804fbcd in _start ()

Possible duplicates by query: bug 289350, bug 286733, bug 285045, bug 279613, bug 275286.

Reported using DrKonqi