Application: plasma-desktop (4.11.4)
KDE Platform Version: 4.11.4
Qt Version: 4.8.5
Operating System: Linux 3.12.6-200.fc19.i686 i686
Distribution: "Fedora release 19 (Schrödinger’s Cat)"

-- Information about the crash:
I was moving a chat windows from one desktop to another then the plasma desktop crashed.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0xb77827c0 (LWP 2633))]

Thread 7 (Thread 0xb3effb40 (LWP 2636)):
#0  0xb77dc424 in __kernel_vsyscall ()
#1  0x4413f33c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:187
#2  0x4852b752 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=this@entry=0x4862a260 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#3  0x4852b7a0 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x4862a260 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#4  0x4413b9da in start_thread (arg=0xb3effb40) at pthread_create.c:308
#5  0x4401fbfe in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 6 (Thread 0xacc2bb40 (LWP 2637)):
#0  0xb77dc424 in __kernel_vsyscall ()
#1  0x440135bb in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x44368abc in poll (__timeout=__timeout@entry=-1, __nfds=__nfds@entry=1, __fds=__fds@entry=0xac302288) at /usr/include/bits/poll2.h:46
#3  g_poll (fds=fds@entry=0xac302288, nfds=nfds@entry=1, timeout=timeout@entry=-1) at gpoll.c:132
#4  0x44359418 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0xac302288, timeout=-1, context=0xac3004e0) at gmain.c:3995
#5  g_main_context_iterate (context=context@entry=0xac3004e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3696
#6  0x44359559 in g_main_context_iteration (context=0xac3004e0, may_block=1) at gmain.c:3762
#7  0x44f42b7f in QEventDispatcherGlib::processEvents (this=0xac300468, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#8  0x44f11444 in QEventLoop::processEvents (this=this@entry=0xacc2b1e8, flags=...) at kernel/qeventloop.cpp:149
#9  0x44f11781 in QEventLoop::exec (this=this@entry=0xacc2b1e8, flags=...) at kernel/qeventloop.cpp:204
#10 0x44dfca9d in QThread::exec (this=this@entry=0x87fc340) at thread/qthread.cpp:536
#11 0x44ef11d5 in QInotifyFileSystemWatcherEngine::run (this=0x87fc340) at io/qfilesystemwatcher_inotify.cpp:256
#12 0x44dff450 in QThreadPrivate::start (arg=0x87fc340) at thread/qthread_unix.cpp:338
#13 0x4413b9da in start_thread (arg=0xacc2bb40) at pthread_create.c:308
#14 0x4401fbfe in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 5 (Thread 0xa910db40 (LWP 3772)):
#0  0xb77dc424 in __kernel_vsyscall ()
#1  0x4413f33c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:187
#2  0x44dff9c5 in wait (time=4294967295, this=0x888afe8) at thread/qwaitcondition_unix.cpp:86
#3  QWaitCondition::wait (this=this@entry=0x887ecd8, mutex=0x8829a00, time=time@entry=4294967295) at thread/qwaitcondition_unix.cpp:158
#4  0x47383704 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x887ecc0, th=th@entry=0x88a8d90) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:370
#5  0x473867ec in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x88299a8, th=0x88a8d90) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WorkingHardState.cpp:77
#6  0x4738365b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x887ecc0, th=th@entry=0x88a8d90) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:361
#7  0x473868d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0x88299a8, th=0x88a8d90, previous=0x0) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WorkingHardState.cpp:68
#8  0x47382543 in ThreadWeaver::WeaverImpl::applyForWork (this=0x887ecc0, th=0x88a8d90, previous=0x0) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:356
#9  0x473868f1 in ThreadWeaver::WorkingHardState::applyForWork (this=0x88299a8, th=0x88a8d90, previous=0xa049b78) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WorkingHardState.cpp:71
#10 0x47382543 in ThreadWeaver::WeaverImpl::applyForWork (this=0x887ecc0, th=0x88a8d90, previous=0xa049b78) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:356
#11 0x47385183 in ThreadWeaver::Thread::run (this=0x88a8d90) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/Thread.cpp:98
#12 0x44dff450 in QThreadPrivate::start (arg=0x88a8d90) at thread/qthread_unix.cpp:338
#13 0x4413b9da in start_thread (arg=0xa910db40) at pthread_create.c:308
#14 0x4401fbfe in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 4 (Thread 0xa9ff4b40 (LWP 3773)):
#0  0xb77dc424 in __kernel_vsyscall ()
#1  0x4413f33c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:187
#2  0x44dff9c5 in wait (time=4294967295, this=0x888afe8) at thread/qwaitcondition_unix.cpp:86
#3  QWaitCondition::wait (this=this@entry=0x887ecd8, mutex=0x8829a00, time=time@entry=4294967295) at thread/qwaitcondition_unix.cpp:158
#4  0x47383704 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x887ecc0, th=th@entry=0x9bbf4a8) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:370
#5  0x473867ec in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x88299a8, th=0x9bbf4a8) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WorkingHardState.cpp:77
#6  0x4738365b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x887ecc0, th=th@entry=0x9bbf4a8) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:361
#7  0x473868d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0x88299a8, th=0x9bbf4a8, previous=0xa3bbed0) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WorkingHardState.cpp:68
#8  0x47382543 in ThreadWeaver::WeaverImpl::applyForWork (this=0x887ecc0, th=0x9bbf4a8, previous=0xa3bbed0) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:356
#9  0x47385183 in ThreadWeaver::Thread::run (this=0x9bbf4a8) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/Thread.cpp:98
#10 0x44dff450 in QThreadPrivate::start (arg=0x9bbf4a8) at thread/qthread_unix.cpp:338
#11 0x4413b9da in start_thread (arg=0xa9ff4b40) at pthread_create.c:308
#12 0x4401fbfe in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 3 (Thread 0xa4d9db40 (LWP 3774)):
#0  0xb77dc424 in __kernel_vsyscall ()
#1  0x4413f33c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:187
#2  0x44dff9c5 in wait (time=4294967295, this=0x888afe8) at thread/qwaitcondition_unix.cpp:86
#3  QWaitCondition::wait (this=this@entry=0x887ecd8, mutex=0x8829a00, time=time@entry=4294967295) at thread/qwaitcondition_unix.cpp:158
#4  0x47383704 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x887ecc0, th=th@entry=0xa1292b8) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:370
#5  0x473867ec in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x88299a8, th=0xa1292b8) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WorkingHardState.cpp:77
#6  0x4738365b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x887ecc0, th=th@entry=0xa1292b8) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:361
#7  0x473868d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0x88299a8, th=0xa1292b8, previous=0x0) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WorkingHardState.cpp:68
#8  0x47382543 in ThreadWeaver::WeaverImpl::applyForWork (this=0x887ecc0, th=0xa1292b8, previous=0x0) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:356
#9  0x473868f1 in ThreadWeaver::WorkingHardState::applyForWork (this=0x88299a8, th=0xa1292b8, previous=0xa3fb070) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WorkingHardState.cpp:71
#10 0x47382543 in ThreadWeaver::WeaverImpl::applyForWork (this=0x887ecc0, th=0xa1292b8, previous=0xa3fb070) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:356
#11 0x47385183 in ThreadWeaver::Thread::run (this=0xa1292b8) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/Thread.cpp:98
#12 0x44dff450 in QThreadPrivate::start (arg=0xa1292b8) at thread/qthread_unix.cpp:338
#13 0x4413b9da in start_thread (arg=0xa4d9db40) at pthread_create.c:308
#14 0x4401fbfe in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 2 (Thread 0xa459cb40 (LWP 3775)):
#0  0xb77dc424 in __kernel_vsyscall ()
#1  0x4413f33c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:187
#2  0x44dff9c5 in wait (time=4294967295, this=0x888afe8) at thread/qwaitcondition_unix.cpp:86
#3  QWaitCondition::wait (this=this@entry=0x887ecd8, mutex=0x8829a00, time=time@entry=4294967295) at thread/qwaitcondition_unix.cpp:158
#4  0x47383704 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x887ecc0, th=th@entry=0xa0d6218) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:370
#5  0x473867ec in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x88299a8, th=0xa0d6218) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WorkingHardState.cpp:77
#6  0x4738365b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x887ecc0, th=th@entry=0xa0d6218) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:361
#7  0x473868d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0x88299a8, th=0xa0d6218, previous=0x9e6bfc8) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WorkingHardState.cpp:68
#8  0x47382543 in ThreadWeaver::WeaverImpl::applyForWork (this=0x887ecc0, th=0xa0d6218, previous=0x9e6bfc8) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/WeaverImpl.cpp:356
#9  0x47385183 in ThreadWeaver::Thread::run (this=0xa0d6218) at /usr/src/debug/kdelibs-4.11.4/threadweaver/Weaver/Thread.cpp:98
#10 0x44dff450 in QThreadPrivate::start (arg=0xa0d6218) at thread/qthread_unix.cpp:338
#11 0x4413b9da in start_thread (arg=0xa459cb40) at pthread_create.c:308
#12 0x4401fbfe in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 1 (Thread 0xb77827c0 (LWP 2633)):
[KCrash Handler]
#7  0x48d6ea64 in QDeclarativeExpression::hasError (this=0x3ff00000) at qml/qdeclarativeexpression.cpp:769
#8  0x48dad976 in QDeclarativeBoundSignal::qt_metacall (this=0x942b860, c=QMetaObject::InvokeMetaMethod, id=5, a=0xbfec1a28) at qml/qdeclarativeboundsignal.cpp:200
#9  0x44f19788 in QMetaObject::metacall (object=object@entry=0x942b860, cl=cl@entry=QMetaObject::InvokeMetaMethod, idx=5, argv=0xbfec1a28) at kernel/qmetaobject.cpp:245
#10 0x44f27f49 in QMetaObject::activate (sender=0x9c79958, m=0xb31edd54, local_signal_index=1, argv=0xbfec1a28) at kernel/qobject.cpp:3577
#11 0xb31e3251 in MouseEventListener::mouseMoveEvent(QGraphicsSceneMouseEvent*) () from /usr/lib/kde4/imports/org/kde/qtextracomponents/libqtextracomponentsplugin.so
#12 0x45f9c360 in QGraphicsItem::sceneEvent (this=0x9c79960, event=0xbfec1f20) at graphicsview/qgraphicsitem.cpp:6744
#13 0x48cfd767 in QDeclarativeItem::sceneEvent (this=0x9c79958, event=0xbfec1f20) at graphicsitems/qdeclarativeitem.cpp:3047
#14 0x45fc6246 in QGraphicsScenePrivate::sendEvent (this=0x8109b20, item=0x9c79960, event=0xbfec1f20) at graphicsview/qgraphicsscene.cpp:1221
#15 0x45fc67b2 in QGraphicsScenePrivate::sendMouseEvent (this=0x8109b20, mouseEvent=0xbfec1f20) at graphicsview/qgraphicsscene.cpp:1295
#16 0x45fcead8 in QGraphicsScene::mouseMoveEvent (this=0x8143b08, mouseEvent=0xbfec1f20) at graphicsview/qgraphicsscene.cpp:4102
#17 0x45fdbbf0 in QGraphicsScene::event (this=0x8143b08, event=0xbfec1f20) at graphicsview/qgraphicsscene.cpp:3451
#18 0x459431a4 in QApplicationPrivate::notify_helper (this=0x810aae0, receiver=0x8143b08, e=0xbfec1f20) at kernel/qapplication.cpp:4562
#19 0x45949cb9 in QApplication::notify (this=0x80f4728, receiver=receiver@entry=0x8143b08, e=e@entry=0xbfec1f20) at kernel/qapplication.cpp:4348
#20 0x4666e005 in KApplication::notify (this=0x80f4728, receiver=0x8143b08, event=0xbfec1f20) at /usr/src/debug/kdelibs-4.11.4/kdeui/kernel/kapplication.cpp:311
#21 0x44f12a3a in QCoreApplication::notifyInternal (this=0x80f4728, receiver=receiver@entry=0x8143b08, event=event@entry=0xbfec1f20) at kernel/qcoreapplication.cpp:949
#22 0x4594184e in sendSpontaneousEvent (event=0xbfec1f20, receiver=0x8143b08) at ../../src/corelib/kernel/qcoreapplication.h:234
#23 qt_sendSpontaneousEvent (receiver=0x8143b08, event=event@entry=0xbfec1f20) at kernel/qapplication.cpp:5560
#24 0x45ff3d6e in QGraphicsViewPrivate::mouseMoveEventHandler (this=this@entry=0x9284e88, event=event@entry=0xbfec24c4) at graphicsview/qgraphicsview.cpp:646
#25 0x45ff4ec1 in QGraphicsView::mouseMoveEvent (this=0x9284688, event=0xbfec24c4) at graphicsview/qgraphicsview.cpp:3276
#26 0x4599e03c in QWidget::event (this=this@entry=0x9284688, event=event@entry=0xbfec24c4) at kernel/qwidget.cpp:8361
#27 0x45da9edd in QFrame::event (this=this@entry=0x9284688, e=e@entry=0xbfec24c4) at widgets/qframe.cpp:557
#28 0x45e3a350 in QAbstractScrollArea::viewportEvent (this=this@entry=0x9284688, e=e@entry=0xbfec24c4) at widgets/qabstractscrollarea.cpp:1043
#29 0x45ff68ff in QGraphicsView::viewportEvent (this=<optimized out>, event=<optimized out>) at graphicsview/qgraphicsview.cpp:2866
#30 0x45e3a5f6 in viewportEvent (event=0xbfec24c4, this=<optimized out>) at widgets/qabstractscrollarea_p.h:100
#31 QAbstractScrollAreaFilter::eventFilter (this=0x94ddf80, o=0x8ca2908, e=0xbfec24c4) at widgets/qabstractscrollarea_p.h:116
#32 0x44f12bae in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x810aae0, receiver=receiver@entry=0x8ca2908, event=event@entry=0xbfec24c4) at kernel/qcoreapplication.cpp:1059
#33 0x45943182 in QApplicationPrivate::notify_helper (this=0x810aae0, receiver=receiver@entry=0x8ca2908, e=0xbfec24c4) at kernel/qapplication.cpp:4558
#34 0x4594b8ec in QApplication::notify (this=0x80f4728, receiver=receiver@entry=0x8ca2908, e=e@entry=0xbfec24c4) at kernel/qapplication.cpp:4105
#35 0x4666e005 in KApplication::notify (this=0x80f4728, receiver=0x8ca2908, event=0xbfec24c4) at /usr/src/debug/kdelibs-4.11.4/kdeui/kernel/kapplication.cpp:311
#36 0x44f12a3a in QCoreApplication::notifyInternal (this=0x80f4728, receiver=receiver@entry=0x8ca2908, event=event@entry=0xbfec24c4) at kernel/qcoreapplication.cpp:949
#37 0x45949534 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#38 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x8ca2908, event=0xbfec24c4, alienWidget=0x8ca2908, nativeWidget=0x9284688, buttonDown=buttonDown@entry=0x462c5f64 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3173
#39 0x459cac18 in QETWidget::translateMouseEvent (this=0x9284688, event=event@entry=0xbfec26dc) at kernel/qapplication_x11.cpp:4538
#40 0x459c9303 in QApplication::x11ProcessEvent (this=0x80f4728, event=event@entry=0xbfec26dc) at kernel/qapplication_x11.cpp:3661
#41 0x459f40fb in x11EventSourceDispatch (s=s@entry=0x810c200, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#42 0x443590e6 in g_main_dispatch (context=0x810ae38, context@entry=0x80b1848) at gmain.c:3054
#43 g_main_context_dispatch (context=context@entry=0x810ae38) at gmain.c:3630
#44 0x44359498 in g_main_context_iterate (context=context@entry=0x810ae38, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3701
#45 0x44359559 in g_main_context_iteration (context=0x810ae38, may_block=1) at gmain.c:3762
#46 0x44f42b60 in QEventDispatcherGlib::processEvents (this=this@entry=0x80b9748, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#47 0x459f42af in QGuiEventDispatcherGlib::processEvents (this=0x80b9748, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#48 0x44f11444 in QEventLoop::processEvents (this=this@entry=0xbfec2998, flags=...) at kernel/qeventloop.cpp:149
#49 0x44f11781 in QEventLoop::exec (this=this@entry=0xbfec2998, flags=...) at kernel/qeventloop.cpp:204
#50 0x44f1721f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#51 0x459415f5 in QApplication::exec () at kernel/qapplication.cpp:3823
#52 0x4748e40d in kdemain (argc=1, argv=0xbfec2b34) at /usr/src/debug/kde-workspace-4.11.4/plasma/desktop/shell/main.cpp:126
#53 0x080487bc in main (argc=1, argv=0xbfec2b34) at /usr/src/debug/kde-workspace-4.11.4/i686-redhat-linux-gnu/plasma/desktop/shell/plasma-desktop_dummy.cpp:3

The reporter indicates this bug may be a duplicate of or related to bug 329380.

Possible duplicates by query: bug 329380, bug 327744.

Reported using DrKonqi