Application: plasma-desktop (4.11.5)
KDE Platform Version: 4.11.5
Qt Version: 4.8.4
Operating System: Linux 3.11.0-15-lowlatency x86_64
Distribution: Ubuntu 13.10

-- Information about the crash:
- What I was doing when the application crashed:

I had a few applications open. I was changing the order in which they appear in the task manager, when plasma crashed and reset itself.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7eff847427c0 (LWP 2031))]

Thread 9 (Thread 0x7eff606b1700 (LWP 2033)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007eff7d3dd06b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007eff7d3dd0a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007eff77a94f6e in start_thread (arg=0x7eff606b1700) at pthread_create.c:311
#4  0x00007eff840299cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 8 (Thread 0x7efed8d87700 (LWP 2038)):
#0  0x00007eff773ca0ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007eff773ca399 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007eff7738a12c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007eff7738a63b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007eff7738a7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007eff80bf6a76 in QEventDispatcherGlib::processEvents (this=0x7efecc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007eff80bc85ef in QEventLoop::processEvents (this=this@entry=0x7efed8d86d70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007eff80bc88e5 in QEventLoop::exec (this=this@entry=0x7efed8d86d70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007eff80ac788f in QThread::exec (this=this@entry=0x3a57ed0) at thread/qthread.cpp:542
#9  0x00007eff80ba9d13 in QInotifyFileSystemWatcherEngine::run (this=0x3a57ed0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007eff80ac9f2f in QThreadPrivate::start (arg=0x3a57ed0) at thread/qthread_unix.cpp:338
#11 0x00007eff77a94f6e in start_thread (arg=0x7efed8d87700) at pthread_create.c:311
#12 0x00007eff840299cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 7 (Thread 0x7efec63d2700 (LWP 2048)):
#0  0x00007fff4a9ada2f in clock_gettime ()
#1  0x00007eff8403e96d in clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007eff80b1e757 in do_gettime (frac=0x7efec63d1b00, sec=0x7efec63d1af8) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007eff80bf7fe5 in updateCurrentTime (this=0x7efec0002660) at kernel/qeventdispatcher_unix.cpp:354
#5  QTimerInfoList::timerWait (this=0x7efec0002660, tm=...) at kernel/qeventdispatcher_unix.cpp:461
#6  0x00007eff80bf682c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7efec63d1bb4) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007eff80bf68d5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007eff77389d4d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007eff7738a5c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007eff7738a7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007eff80bf6a76 in QEventDispatcherGlib::processEvents (this=0x7efec00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007eff80bc85ef in QEventLoop::processEvents (this=this@entry=0x7efec63d1d70, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007eff80bc88e5 in QEventLoop::exec (this=this@entry=0x7efec63d1d70, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007eff80ac788f in QThread::exec (this=this@entry=0x3a40720) at thread/qthread.cpp:542
#15 0x00007eff80ba9d13 in QInotifyFileSystemWatcherEngine::run (this=0x3a40720) at io/qfilesystemwatcher_inotify.cpp:265
#16 0x00007eff80ac9f2f in QThreadPrivate::start (arg=0x3a40720) at thread/qthread_unix.cpp:338
#17 0x00007eff77a94f6e in start_thread (arg=0x7efec63d2700) at pthread_create.c:311
#18 0x00007eff840299cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7efebd2ff700 (LWP 2091)):
#0  0x00007fff4a9ada2f in clock_gettime ()
#1  0x00007eff8403e96d in clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007eff80b1e757 in do_gettime (frac=0x7efebd2feb20, sec=0x7efebd2feb18) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007eff80bf7fe5 in updateCurrentTime (this=0x7efeb8002660) at kernel/qeventdispatcher_unix.cpp:354
#5  QTimerInfoList::timerWait (this=0x7efeb8002660, tm=...) at kernel/qeventdispatcher_unix.cpp:461
#6  0x00007eff80bf682c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7efebd2febb4) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007eff77389d4d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007eff7738a5c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007eff7738a7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007eff80bf6a76 in QEventDispatcherGlib::processEvents (this=0x7efeb80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#11 0x00007eff80bc85ef in QEventLoop::processEvents (this=this@entry=0x7efebd2fed70, flags=...) at kernel/qeventloop.cpp:149
#12 0x00007eff80bc88e5 in QEventLoop::exec (this=this@entry=0x7efebd2fed70, flags=...) at kernel/qeventloop.cpp:204
#13 0x00007eff80ac788f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#14 0x00007efec520bfd7 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#15 0x00007eff80ac9f2f in QThreadPrivate::start (arg=0x1f795b0) at thread/qthread_unix.cpp:338
#16 0x00007eff77a94f6e in start_thread (arg=0x7efebd2ff700) at pthread_create.c:311
#17 0x00007eff840299cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7efeb6fcd700 (LWP 3594)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007eff80aca406 in wait (time=18446744073709551615, this=0x40bd700) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x41484a8, mutex=0x40b8590, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007eff7c655e6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x4148480, th=0x4772630) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007eff7c658903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x40bcb30, th=0x4772630, previous=0x56942d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007eff7c65761f in ThreadWeaver::Thread::run (this=0x4772630) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007eff80ac9f2f in QThreadPrivate::start (arg=0x4772630) at thread/qthread_unix.cpp:338
#7  0x00007eff77a94f6e in start_thread (arg=0x7efeb6fcd700) at pthread_create.c:311
#8  0x00007eff840299cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7efed3fff700 (LWP 3595)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007eff80aca406 in wait (time=18446744073709551615, this=0x40bd700) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x41484a8, mutex=0x40b8590, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007eff7c655e6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x4148480, th=0x4cf7a80) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007eff7c658903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x40bcb30, th=0x4cf7a80, previous=0x7847e90) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007eff7c65761f in ThreadWeaver::Thread::run (this=0x4cf7a80) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007eff80ac9f2f in QThreadPrivate::start (arg=0x4cf7a80) at thread/qthread_unix.cpp:338
#7  0x00007eff77a94f6e in start_thread (arg=0x7efed3fff700) at pthread_create.c:311
#8  0x00007eff840299cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7efeb5ffa700 (LWP 3596)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007eff80aca406 in wait (time=18446744073709551615, this=0x40bd700) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x41484a8, mutex=0x40b8590, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007eff7c655e6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x4148480, th=0x6ee4510) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007eff7c658903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x40bcb30, th=0x6ee4510, previous=0x7a1f2b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007eff7c65761f in ThreadWeaver::Thread::run (this=0x6ee4510) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007eff80ac9f2f in QThreadPrivate::start (arg=0x6ee4510) at thread/qthread_unix.cpp:338
#7  0x00007eff77a94f6e in start_thread (arg=0x7efeb5ffa700) at pthread_create.c:311
#8  0x00007eff840299cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7efeaf185700 (LWP 3597)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007eff80aca406 in wait (time=18446744073709551615, this=0x40bd700) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x41484a8, mutex=0x40b8590, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007eff7c655e6c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x4148480, th=0x6ee17e0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007eff7c658903 in ThreadWeaver::WorkingHardState::applyForWork (this=0x40bcb30, th=0x6ee17e0, previous=0x5eb0c90) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007eff7c65761f in ThreadWeaver::Thread::run (this=0x6ee17e0) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007eff80ac9f2f in QThreadPrivate::start (arg=0x6ee17e0) at thread/qthread_unix.cpp:338
#7  0x00007eff77a94f6e in start_thread (arg=0x7efeaf185700) at pthread_create.c:311
#8  0x00007eff840299cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7eff847427c0 (LWP 2031)):
[KCrash Handler]
#6  ref (this=0x7eff828c4bd0 <QDeclarativeValueTypeReference::~QDeclarativeValueTypeReference()>) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h:121
#7  QUrl::operator= (this=this@entry=0x74bc5c0, url=...) at io/qurl.cpp:6156
#8  0x00007eff8287bccf in QDeclarativeError::operator= (this=0x7fff4a96a640, other=...) at qml/qdeclarativeerror.cpp:117
#9  0x00007eff8282c074 in QDeclarativeExpression::error (this=<optimized out>) at qml/qdeclarativeexpression.cpp:794
#10 0x00007eff8286655b in QDeclarativeBoundSignal::qt_metacall (this=0x3fcf920, c=<optimized out>, id=<optimized out>, a=0x7fff4a96a7b0) at qml/qdeclarativeboundsignal.cpp:201
#11 0x00007eff80bddc52 in QMetaObject::activate (sender=sender@entry=0x5709520, m=m@entry=0x7efedf3e0b20 <MouseEventListener::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff4a96a7b0) at kernel/qobject.cpp:3558
#12 0x00007efedf1d75f7 in positionChanged (_t1=0x7fff4a96a7c0, this=0x5709520) at ./mouseeventlistener.moc:375
#13 MouseEventListener::mouseMoveEvent (this=0x5709520, me=<optimized out>) at ../../../../plasma/declarativeimports/qtextracomponents/mouseeventlistener.cpp:121
#14 0x00007eff8050fc46 in QGraphicsItem::sceneEvent (this=this@entry=0x5709530, event=event@entry=0x7fff4a96ac60) at graphicsview/qgraphicsitem.cpp:6736
#15 0x00007eff827c3a54 in QDeclarativeItem::sceneEvent (this=0x5709520, event=0x7fff4a96ac60) at graphicsitems/qdeclarativeitem.cpp:3049
#16 0x00007eff80536b3f in QGraphicsScenePrivate::sendMouseEvent (this=0x1e9caf0, mouseEvent=0x7fff4a96ac60) at graphicsview/qgraphicsscene.cpp:1295
#17 0x00007eff8053f6f6 in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fff4a96ac60) at graphicsview/qgraphicsscene.cpp:4102
#18 0x00007eff8054b62c in QGraphicsScene::event (this=0x2066ae0, event=0x7fff4a96ac60) at graphicsview/qgraphicsscene.cpp:3451
#19 0x00007eff7ff66dfc in QApplicationPrivate::notify_helper (this=this@entry=0x1e197a0, receiver=receiver@entry=0x2066ae0, e=e@entry=0x7fff4a96ac60) at kernel/qapplication.cpp:4567
#20 0x00007eff7ff6d470 in QApplication::notify (this=this@entry=0x1e00e50, receiver=receiver@entry=0x2066ae0, e=e@entry=0x7fff4a96ac60) at kernel/qapplication.cpp:4353
#21 0x00007eff8188da6a in KApplication::notify (this=0x1e00e50, receiver=0x2066ae0, event=0x7fff4a96ac60) at ../../kdeui/kernel/kapplication.cpp:311
#22 0x00007eff80bc98bd in QCoreApplication::notifyInternal (this=0x1e00e50, receiver=0x2066ae0, event=event@entry=0x7fff4a96ac60) at kernel/qcoreapplication.cpp:946
#23 0x00007eff7ff65526 in sendSpontaneousEvent (event=event@entry=0x7fff4a96ac60, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#24 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fff4a96ac60) at kernel/qapplication.cpp:5565
#25 0x00007eff805608ac in QGraphicsViewPrivate::mouseMoveEventHandler (this=this@entry=0x514e8c0, event=event@entry=0x7fff4a96b2b0) at graphicsview/qgraphicsview.cpp:646
#26 0x00007eff805617ba in QGraphicsView::mouseMoveEvent (this=0x514e7e0, event=0x7fff4a96b2b0) at graphicsview/qgraphicsview.cpp:3276
#27 0x00007eff7ffb6445 in QWidget::event (this=this@entry=0x514e7e0, event=event@entry=0x7fff4a96b2b0) at kernel/qwidget.cpp:8360
#28 0x00007eff803575be in QFrame::event (this=0x514e7e0, e=0x7fff4a96b2b0) at widgets/qframe.cpp:557
#29 0x00007eff80562e09 in QGraphicsView::viewportEvent (this=0x514e7e0, event=0x7fff4a96b2b0) at graphicsview/qgraphicsview.cpp:2866
#30 0x00007eff80bc9a26 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x1e197a0, receiver=receiver@entry=0x51634f0, event=event@entry=0x7fff4a96b2b0) at kernel/qcoreapplication.cpp:1056
#31 0x00007eff7ff66ddc in QApplicationPrivate::notify_helper (this=this@entry=0x1e197a0, receiver=receiver@entry=0x51634f0, e=e@entry=0x7fff4a96b2b0) at kernel/qapplication.cpp:4563
#32 0x00007eff7ff6d5ad in QApplication::notify (this=this@entry=0x1e00e50, receiver=receiver@entry=0x51634f0, e=e@entry=0x7fff4a96b2b0) at kernel/qapplication.cpp:4110
#33 0x00007eff8188da6a in KApplication::notify (this=0x1e00e50, receiver=0x51634f0, event=0x7fff4a96b2b0) at ../../kdeui/kernel/kapplication.cpp:311
#34 0x00007eff80bc98bd in QCoreApplication::notifyInternal (this=0x1e00e50, receiver=receiver@entry=0x51634f0, event=event@entry=0x7fff4a96b2b0) at kernel/qcoreapplication.cpp:946
#35 0x00007eff7ff6cd63 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#36 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x51634f0, event=event@entry=0x7fff4a96b2b0, alienWidget=alienWidget@entry=0x51634f0, nativeWidget=nativeWidget@entry=0x514e7e0, buttonDown=buttonDown@entry=0x7eff80a4b2f8 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#37 0x00007eff7ffe17db in QETWidget::translateMouseEvent (this=this@entry=0x514e7e0, event=event@entry=0x7fff4a96b630) at kernel/qapplication_x11.cpp:4631
#38 0x00007eff7ffe1079 in QApplication::x11ProcessEvent (this=0x1e00e50, event=event@entry=0x7fff4a96b630) at kernel/qapplication_x11.cpp:3624
#39 0x00007eff80008922 in x11EventSourceDispatch (s=0x1e1a650, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#40 0x00007eff7738a3b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007eff7738a708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007eff7738a7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007eff80bf6a55 in QEventDispatcherGlib::processEvents (this=0x1e12f00, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#44 0x00007eff800089d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#45 0x00007eff80bc85ef in QEventLoop::processEvents (this=this@entry=0x7fff4a96ba10, flags=...) at kernel/qeventloop.cpp:149
#46 0x00007eff80bc88e5 in QEventLoop::exec (this=this@entry=0x7fff4a96ba10, flags=...) at kernel/qeventloop.cpp:204
#47 0x00007eff80bcde5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#48 0x00007eff7ff6534c in QApplication::exec () at kernel/qapplication.cpp:3828
#49 0x00007eff8433364c in kdemain (argc=1, argv=0x7fff4a96bc68) at ../../../../plasma/desktop/shell/main.cpp:126
#50 0x00007eff83f50de5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fff4a96bc68, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4a96bc58) at libc-start.c:260
#51 0x000000000040070e in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 330009.

Possible duplicates by query: bug 330009.

Reported using DrKonqi