Application: plasma-desktop (4.10.2)
KDE Platform Version: 4.10.2
Qt Version: 4.8.4
Operating System: Linux 3.8.11-200.fc18.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
I had multiple windows open, and was debugging a game. I wasn't even using any aspects of Plasma when it crashed.

What happened was that the entire screen went black, except for my OPEN windows. I could even still use the windows too, they didn't freeze or anything like that.

The desktop came back to what it was before, windows and all.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f71b7d60880 (LWP 1275))]

Thread 8 (Thread 0x7f71a7a38700 (LWP 1278)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x0000003a55b868c7 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x3a55e94660 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x0000003a55b868f9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x0000003a36407d15 in start_thread (arg=0x7f71a7a38700) at pthread_create.c:308
#4  0x0000003a35cf248d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:114

Thread 7 (Thread 0x7f711e7ba700 (LWP 1279)):
#0  0x0000003a36409c12 in __GI___pthread_mutex_lock (mutex=0x7f7118000a60) at pthread_mutex_lock.c:95
#1  0x0000003a38884da1 in g_mutex_lock (mutex=mutex@entry=0x7f71180009a0) at gthread-posix.c:210
#2  0x0000003a3884702e in g_main_context_acquire (context=0x7f71180009a0) at gmain.c:2776
#3  0x0000003a38847c04 in g_main_context_iterate (context=context@entry=0x7f71180009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3240
#4  0x0000003a38847e44 in g_main_context_iteration (context=0x7f71180009a0, may_block=1) at gmain.c:3351
#5  0x0000003a415a5fa6 in QEventDispatcherGlib::processEvents (this=0x7f71180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x0000003a415765ef in QEventLoop::processEvents (this=this@entry=0x7f711e7b9cd0, flags=...) at kernel/qeventloop.cpp:149
#7  0x0000003a41576878 in QEventLoop::exec (this=0x7f711e7b9cd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x0000003a41478980 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#9  0x0000003a41556e1f in QInotifyFileSystemWatcherEngine::run (this=0x25abb50) at io/qfilesystemwatcher_inotify.cpp:256
#10 0x0000003a4147b95c in QThreadPrivate::start (arg=0x25abb50) at thread/qthread_unix.cpp:338
#11 0x0000003a36407d15 in start_thread (arg=0x7f711e7ba700) at pthread_create.c:308
#12 0x0000003a35cf248d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:114

Thread 6 (Thread 0x7f710d9af700 (LWP 1282)):
#0  0x0000003a388475b0 in g_main_context_prepare (context=context@entry=0x7f71080009a0, priority=priority@entry=0x7f710d9aeb68) at gmain.c:2986
#1  0x0000003a38847c4b in g_main_context_iterate (context=context@entry=0x7f71080009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3270
#2  0x0000003a38847e44 in g_main_context_iteration (context=0x7f71080009a0, may_block=1) at gmain.c:3351
#3  0x0000003a415a5fa6 in QEventDispatcherGlib::processEvents (this=0x7f71080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x0000003a415765ef in QEventLoop::processEvents (this=this@entry=0x7f710d9aecc0, flags=...) at kernel/qeventloop.cpp:149
#5  0x0000003a41576878 in QEventLoop::exec (this=0x7f710d9aecc0, flags=...) at kernel/qeventloop.cpp:204
#6  0x0000003a41478980 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#7  0x00007f710ed832d5 in KCupsConnection::run() () from /lib64/libkcupslib.so
#8  0x0000003a4147b95c in QThreadPrivate::start (arg=0x34ceaf0) at thread/qthread_unix.cpp:338
#9  0x0000003a36407d15 in start_thread (arg=0x7f710d9af700) at pthread_create.c:308
#10 0x0000003a35cf248d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:114

Thread 5 (Thread 0x7f7107fff700 (LWP 3666)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x0000003a4147bebb in wait (time=18446744073709551615, this=0x2630b50) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x260aca0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000003a5160aad1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2693c90, th=0x4c005c0) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x0000003a5160d31b in ThreadWeaver::WorkingHardState::applyForWork (this=0x260ac80, th=0x4c005c0) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x0000003a5160c18f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f7107ffed00, parent=0x2693c90, th=th@entry=0x4c005c0) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/Thread.cpp:87
#6  0x0000003a5160c21b in ThreadWeaver::Thread::run (this=0x4c005c0) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/Thread.cpp:142
#7  0x0000003a4147b95c in QThreadPrivate::start (arg=0x4c005c0) at thread/qthread_unix.cpp:338
#8  0x0000003a36407d15 in start_thread (arg=0x7f7107fff700) at pthread_create.c:308
#9  0x0000003a35cf248d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:114

Thread 4 (Thread 0x7f7105972700 (LWP 3667)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x0000003a4147bebb in wait (time=18446744073709551615, this=0x2630b50) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x260aca0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000003a5160aad1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2693c90, th=0x2209290) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x0000003a5160d31b in ThreadWeaver::WorkingHardState::applyForWork (this=0x260ac80, th=0x2209290) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x0000003a5160c18f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f7105971d00, parent=0x2693c90, th=th@entry=0x2209290) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/Thread.cpp:87
#6  0x0000003a5160c21b in ThreadWeaver::Thread::run (this=0x2209290) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/Thread.cpp:142
#7  0x0000003a4147b95c in QThreadPrivate::start (arg=0x2209290) at thread/qthread_unix.cpp:338
#8  0x0000003a36407d15 in start_thread (arg=0x7f7105972700) at pthread_create.c:308
#9  0x0000003a35cf248d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:114

Thread 3 (Thread 0x7f7105171700 (LWP 3668)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x0000003a4147bebb in wait (time=18446744073709551615, this=0x2630b50) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x260aca0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000003a5160aad1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2693c90, th=0x48ab7e0) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x0000003a5160d31b in ThreadWeaver::WorkingHardState::applyForWork (this=0x260ac80, th=0x48ab7e0) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x0000003a5160c18f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f7105170d00, parent=0x2693c90, th=th@entry=0x48ab7e0) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/Thread.cpp:87
#6  0x0000003a5160c21b in ThreadWeaver::Thread::run (this=0x48ab7e0) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/Thread.cpp:142
#7  0x0000003a4147b95c in QThreadPrivate::start (arg=0x48ab7e0) at thread/qthread_unix.cpp:338
#8  0x0000003a36407d15 in start_thread (arg=0x7f7105171700) at pthread_create.c:308
#9  0x0000003a35cf248d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:114

Thread 2 (Thread 0x7f7104970700 (LWP 3669)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x0000003a4147bebb in wait (time=18446744073709551615, this=0x2630b50) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x260aca0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000003a5160aad1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2693c90, th=0x483b390) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x0000003a5160d31b in ThreadWeaver::WorkingHardState::applyForWork (this=0x260ac80, th=0x483b390) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x0000003a5160c18f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f710496fd00, parent=0x2693c90, th=th@entry=0x483b390) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/Thread.cpp:87
#6  0x0000003a5160c21b in ThreadWeaver::Thread::run (this=0x483b390) at /usr/src/debug/kdelibs-4.10.2/threadweaver/Weaver/Thread.cpp:142
#7  0x0000003a4147b95c in QThreadPrivate::start (arg=0x483b390) at thread/qthread_unix.cpp:338
#8  0x0000003a36407d15 in start_thread (arg=0x7f7104970700) at pthread_create.c:308
#9  0x0000003a35cf248d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:114

Thread 1 (Thread 0x7f71b7d60880 (LWP 1275)):
[KCrash Handler]
#6  0x0000003a4158b23e in QMetaObject::addGuard (ptr=0x7fff1fc45970) at kernel/qobject.cpp:400
#7  0x0000003a56d7261e in QPointer (p=..., this=0x7fff1fc45970) at ../../src/corelib/kernel/qpointer.h:62
#8  takeAt (i=15, this=0x3eae978) at ../../src/corelib/tools/qlist.h:486
#9  QDeclarativeRepeater::itemsRemoved (this=0x3eae6c0, index=15, count=0) at graphicsitems/qdeclarativerepeater.cpp:407
#10 0x0000003a4158cd6f in QMetaObject::activate (sender=0x3eaef90, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff1fc45af0) at kernel/qobject.cpp:3539
#11 0x0000003a56eb792f in QDeclarativeVisualModel::itemsRemoved (this=<optimized out>, _t1=15, _t2=1) at .moc/release-shared/moc_qdeclarativevisualitemmodel_p.cpp:160
#12 0x0000003a56d8954c in QDeclarativeVisualDataModel::_q_itemsRemoved (this=0x3eaef90, index=15, count=1) at graphicsitems/qdeclarativevisualitemmodel.cpp:1314
#13 0x0000003a56eb7f61 in QDeclarativeVisualDataModel::qt_static_metacall (_o=0x7fff1fc45970, _c=15, _id=32120672, _a=0x1) at .moc/release-shared/moc_qdeclarativevisualitemmodel_p.cpp:400
#14 0x0000003a4158cd6f in QMetaObject::activate (sender=0x363b870, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff1fc45d30) at kernel/qobject.cpp:3539
#15 0x0000003a56eac3bf in QListModelInterface::itemsRemoved (this=<optimized out>, _t1=15, _t2=1) at .moc/release-shared/moc_qlistmodelinterface_p.cpp:113
#16 0x0000003a56cf4fef in QDeclarativeListModel::remove (this=0x363b870, index=15) at util/qdeclarativelistmodel.cpp:402
#17 0x0000003a56eaaf8b in QDeclarativeListModel::qt_static_metacall (_o=0x7fff1fc45970, _o@entry=0x363b870, _c=15, _c@entry=QMetaObject::InvokeMetaMethod, _id=32120672, _id@entry=2, _a=0x1, _a@entry=0x7fff1fc45fc0) at .moc/release-shared/moc_qdeclarativelistmodel_p.cpp:75
#18 0x0000003a56eab08f in QDeclarativeListModel::qt_metacall (this=0x363b870, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0x7fff1fc45fc0) at .moc/release-shared/moc_qdeclarativelistmodel_p.cpp:122
#19 0x0000003a56e55ba8 in QDeclarativeObjectMethodScriptClass::callMethod (this=this@entry=0x31f56e0, object=object@entry=0x363b870, index=10, returnType=<optimized out>, argCount=<optimized out>, argTypes=0x7fff1fc46280, ctxt=ctxt@entry=0x7f710f7f02a8) at qml/qdeclarativeobjectscriptclass.cpp:970
#20 0x0000003a56e57816 in QDeclarativeObjectMethodScriptClass::callPrecise (this=0x31f56e0, object=0x363b870, data=..., ctxt=0x7f710f7f02a8) at qml/qdeclarativeobjectscriptclass.cpp:944
#21 0x0000003a56e5814b in QDeclarativeObjectMethodScriptClass::call (this=<optimized out>, o=<optimized out>, ctxt=<optimized out>) at qml/qdeclarativeobjectscriptclass.cpp:917
#22 0x0000003a55bfcd63 in QScript::DeclarativeObjectDelegate::call (exec=<optimized out>, callee=0x7f71075f2680, thisValue=..., args=...) at bridge/qscriptdeclarativeobject.cpp:154
#23 0x0000003a55af8ef0 in QTJSC::NativeFuncWrapper::operator() (this=0x7fff1fc463d0, exec=0x7f710f7f02a8, jsobj=0x7f71075f2680, thisValue=..., argList=...) at ../3rdparty/javascriptcore/JavaScriptCore/runtime/CallData.cpp:46
#24 0x0000003a55ad60aa in QTJSC::cti_op_call_NotJSFunction (args=0x7fff1fc46420) at ../3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp:1780
#25 0x00007f7127201ca8 in ?? ()
#26 0x0000000000000000 in ?? ()

This bug may be a duplicate of or related to bug 311871.

Possible duplicates by query: bug 319586, bug 319498, bug 319228, bug 319205, bug 319002.

Reported using DrKonqi