Bug 297663

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2) "release 5"
Qt Version: 4.7.4
Operating System: Linux 3.1.9-1.4-desktop x86_64
Distribution: "openSUSE 12.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
Using several applications.  Light-medium computer usage.

- Unusual behavior I noticed:
As I write this, panel has disappeared from bottom of screen and I can still use some applications now that are not minimized.  May finish logout after I submit this form.

- Custom settings of the application:

-- Backtrace:
Application: Plasma Desktop Shell (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f4133cd0760 (LWP 5953))]

Thread 10 (Thread 0x7f4115cd1700 (LWP 5956)):
#0  0x00007f413133bff3 in poll () from /lib64/libc.so.6
#1  0x00007f412e130a98 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f412e130f59 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f413294d586 in QEventDispatcherGlib::processEvents (this=0x7f41100008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f4132921a32 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f4132921c2f in QEventLoop::exec (this=0x7f4115cd0df0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f41328395df in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f4132904aff in QInotifyFileSystemWatcherEngine::run (this=0xb17530) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f413283c025 in QThreadPrivate::start (arg=0xb17530) at thread/qthread_unix.cpp:331
#9  0x00007f41325abf05 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f413134510d in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f410c976700 (LWP 7420)):
#0  0x00007f41325afe6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f413283c4bb in wait (time=18446744073709551615, this=0xb39990) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0xb28790, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f4126666104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xbaab80, th=0x1af3020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f41266686ab in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x1af3020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412666756f in ThreadWeaver::ThreadRunHelper::run (this=0x7f410c975e40, parent=0xbaab80, th=0x1af3020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f41266675fb in ThreadWeaver::Thread::run (this=0x1af3020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f413283c025 in QThreadPrivate::start (arg=0x1af3020) at thread/qthread_unix.cpp:331
#8  0x00007f41325abf05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f413134510d in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f410d177700 (LWP 7421)):
#0  0x00007f41325afe6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f413283c4bb in wait (time=18446744073709551615, this=0xb39990) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0xb28790, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f4126666104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xbaab80, th=0x1ccb020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f41266686ab in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x1ccb020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412666756f in ThreadWeaver::ThreadRunHelper::run (this=0x7f410d176e40, parent=0xbaab80, th=0x1ccb020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f41266675fb in ThreadWeaver::Thread::run (this=0x1ccb020) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f413283c025 in QThreadPrivate::start (arg=0x1ccb020) at thread/qthread_unix.cpp:331
#8  0x00007f41325abf05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f413134510d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f410d978700 (LWP 7422)):
#0  0x00007f41325afe6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f413283c4bb in wait (time=18446744073709551615, this=0xb39990) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0xb28790, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f4126666104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xbaab80, th=0x2013bc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f41266686ab in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x2013bc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412666756f in ThreadWeaver::ThreadRunHelper::run (this=0x7f410d977e40, parent=0xbaab80, th=0x2013bc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f41266675fb in ThreadWeaver::Thread::run (this=0x2013bc0) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f413283c025 in QThreadPrivate::start (arg=0x2013bc0) at thread/qthread_unix.cpp:331
#8  0x00007f41325abf05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f413134510d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f40fffff700 (LWP 7423)):
#0  0x00007f41325afe6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f413283c4bb in wait (time=18446744073709551615, this=0xb39990) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0xb28790, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f4126666104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xbaab80, th=0x1ec7c10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f41266686ab in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x1ec7c10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412666756f in ThreadWeaver::ThreadRunHelper::run (this=0x7f40ffffee40, parent=0xbaab80, th=0x1ec7c10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f41266675fb in ThreadWeaver::Thread::run (this=0x1ec7c10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f413283c025 in QThreadPrivate::start (arg=0x1ec7c10) at thread/qthread_unix.cpp:331
#8  0x00007f41325abf05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f413134510d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f40effff700 (LWP 7424)):
#0  0x00007f41325afe6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f413283c4bb in wait (time=18446744073709551615, this=0xb39990) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0xb28790, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f4126666104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xbaab80, th=0x2029d40) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f41266686ab in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x2029d40) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412666756f in ThreadWeaver::ThreadRunHelper::run (this=0x7f40efffee40, parent=0xbaab80, th=0x2029d40) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f41266675fb in ThreadWeaver::Thread::run (this=0x2029d40) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f413283c025 in QThreadPrivate::start (arg=0x2029d40) at thread/qthread_unix.cpp:331
#8  0x00007f41325abf05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f413134510d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f40ef7fe700 (LWP 7425)):
#0  0x00007f41325afe6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f413283c4bb in wait (time=18446744073709551615, this=0xb39990) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0xb28790, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f4126666104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xbaab80, th=0x1fcc410) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f41266686ab in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x1fcc410) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f41266686c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x1fcc410) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f412666756f in ThreadWeaver::ThreadRunHelper::run (this=0x7f40ef7fde40, parent=0xbaab80, th=0x1fcc410) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#7  0x00007f41266675fb in ThreadWeaver::Thread::run (this=0x1fcc410) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#8  0x00007f413283c025 in QThreadPrivate::start (arg=0x1fcc410) at thread/qthread_unix.cpp:331
#9  0x00007f41325abf05 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f413134510d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f40eeffd700 (LWP 7426)):
#0  0x00007f41325afe6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f413283c4bb in wait (time=18446744073709551615, this=0xb39990) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0xb28790, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f4126666104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xbaab80, th=0x1c6ce10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f41266686ab in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x1c6ce10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f41266686c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x1c6ce10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f412666756f in ThreadWeaver::ThreadRunHelper::run (this=0x7f40eeffce40, parent=0xbaab80, th=0x1c6ce10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#7  0x00007f41266675fb in ThreadWeaver::Thread::run (this=0x1c6ce10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#8  0x00007f413283c025 in QThreadPrivate::start (arg=0x1c6ce10) at thread/qthread_unix.cpp:331
#9  0x00007f41325abf05 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f413134510d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f40ee7fc700 (LWP 7427)):
#0  0x00007f41325afe6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f413283c4bb in wait (time=18446744073709551615, this=0xb39990) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0xb28790, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f4126666104 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xbaab80, th=0x1ec7e10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f41266686ab in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x1ec7e10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f41266686c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x1ec7e10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f41266686c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x1ec7e10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f41266686c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0xb4c5d0, th=0x1ec7e10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007f412666756f in ThreadWeaver::ThreadRunHelper::run (this=0x7f40ee7fbe40, parent=0xbaab80, th=0x1ec7e10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:87
#9  0x00007f41266675fb in ThreadWeaver::Thread::run (this=0x1ec7e10) at /usr/src/debug/kdelibs-4.7.2/threadweaver/Weaver/Thread.cpp:142
#10 0x00007f413283c025 in QThreadPrivate::start (arg=0x1ec7e10) at thread/qthread_unix.cpp:331
#11 0x00007f41325abf05 in start_thread () from /lib64/libpthread.so.0
#12 0x00007f413134510d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f4133cd0760 (LWP 5953)):
[KCrash Handler]
#6  0x00007f413256c830 in vtable for QPaintDevice () from /usr/lib64/libQtGui.so.4
#7  0x00007f410e884cc6 in TaskGroupItem::~TaskGroupItem (this=0x2222060, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f410e884d79 in TaskGroupItem::~TaskGroupItem (this=0x2222060, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007f4132939188 in QObject::event (this=0x2222060, e=<optimized out>) at kernel/qobject.cpp:1209
#10 0x00007f41320ee31b in QGraphicsWidget::event (this=0x2222060, event=0x1e727b0) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007f4131ad4c34 in notify_helper (e=0x1e727b0, receiver=0x2222060, this=0x6dac70) at kernel/qapplication.cpp:4481
#12 QApplicationPrivate::notify_helper (this=0x6dac70, receiver=0x2222060, e=0x1e727b0) at kernel/qapplication.cpp:4453
#13 0x00007f4131ad9ac1 in QApplication::notify (this=0x6cd8d0, receiver=0x2222060, e=0x1e727b0) at kernel/qapplication.cpp:4360
#14 0x00007f41336b4e36 in KApplication::notify (this=0x6cd8d0, receiver=0x2222060, event=0x1e727b0) at /usr/src/debug/kdelibs-4.7.2/kdeui/kernel/kapplication.cpp:311
#15 0x00007f413292282c in QCoreApplication::notifyInternal (this=0x6cd8d0, receiver=0x2222060, event=0x1e727b0) at kernel/qcoreapplication.cpp:787
#16 0x00007f4132925c08 in sendEvent (event=0x1e727b0, receiver=0x2222060) at kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x615800) at kernel/qcoreapplication.cpp:1428
#18 0x00007f4132925e2e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007f41211e4773 in kdemain (argc=1, argv=0x615430) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/shell/main.cpp:120
#20 0x0000000000408897 in _start ()

Possible duplicates by query: bug 294972, bug 290911, bug 279334, bug 275286.

Reported using DrKonqi