Application: plasma-desktop (4.11.3)
KDE Platform Version: 4.11.3
Qt Version: 4.8.4
Operating System: Linux 3.8.0-35-generic x86_64
Distribution: Ubuntu 13.04

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

I was watching a flash based movie in firefox when i tried to click on another firefox window to switch windows, plasma dissappeared, but firefox etc. were left intact and even resized to fullscreen.
- Unusual behavior I noticed:
frame buffer errors before the resize when plasma crashed (funny colors)

-- 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 0x7f4575fce7c0 (LWP 2695))]

Thread 9 (Thread 0x7f4555f80700 (LWP 2698)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f456ed0ab27 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f456ed0ab59 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f45693eff8e in start_thread (arg=0x7f4555f80700) at pthread_create.c:311
#4  0x00007f45758cba0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 8 (Thread 0x7f44c0f85700 (LWP 2700)):
#0  0x00007f45693f307f in __pthread_mutex_unlock_usercnt (mutex=0x7f44bc000a60, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  0x00007f4568d2c5f1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4568ced188 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4568ced304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f45724a8036 in QEventDispatcherGlib::processEvents (this=0x7f44bc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f457247838f in QEventLoop::processEvents (this=this@entry=0x7f44c0f84d90, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f4572478618 in QEventLoop::exec (this=this@entry=0x7f44c0f84d90, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f457237a410 in QThread::exec (this=this@entry=0x2e55850) at thread/qthread.cpp:542
#8  0x00007f4572459edf in QInotifyFileSystemWatcherEngine::run (this=0x2e55850) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00007f457237cbec in QThreadPrivate::start (arg=0x2e55850) at thread/qthread_unix.cpp:338
#10 0x00007f45693eff8e in start_thread (arg=0x7f44c0f85700) at pthread_create.c:311
#11 0x00007f45758cba0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 7 (Thread 0x7f44b92a0700 (LWP 2702)):
#0  0x00007f45758befbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4568ced1dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4568ced6ba in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f44b9d914f6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f4568d10eb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f45693eff8e in start_thread (arg=0x7f44b92a0700) at pthread_create.c:311
#6  0x00007f45758cba0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7f44b28e1700 (LWP 6398)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f457237d14b in wait (time=18446744073709551615, this=0x2fdc590) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x2fca468, mutex=0x2fbce00, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f456df8d0e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2fca440, th=0xd94fb80) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f456df8f9cb in ThreadWeaver::WorkingHardState::applyForWork (this=0x2fbce60, th=0xd94fb80, previous=0xe7cd6a0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f456df8e71f in ThreadWeaver::Thread::run (this=0xd94fb80) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007f457237cbec in QThreadPrivate::start (arg=0xd94fb80) at thread/qthread_unix.cpp:338
#7  0x00007f45693eff8e in start_thread (arg=0x7f44b28e1700) at pthread_create.c:311
#8  0x00007f45758cba0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7f44cad29700 (LWP 6399)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f457237d14b in wait (time=18446744073709551615, this=0x2fdc590) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x2fca468, mutex=0x2fbce00, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f456df8d0e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2fca440, th=0x2f074c0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f456df8f9cb in ThreadWeaver::WorkingHardState::applyForWork (this=0x2fbce60, th=0x2f074c0, previous=0x11d5df00) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f456df8e71f in ThreadWeaver::Thread::run (this=0x2f074c0) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007f457237cbec in QThreadPrivate::start (arg=0x2f074c0) at thread/qthread_unix.cpp:338
#7  0x00007f45693eff8e in start_thread (arg=0x7f44cad29700) at pthread_create.c:311
#8  0x00007f45758cba0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f44b9aa1700 (LWP 6400)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f457237d14b in wait (time=18446744073709551615, this=0x2fdc590) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x2fca468, mutex=0x2fbce00, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f456df8d0e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2fca440, th=0x71b2ed0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f456df8f9cb in ThreadWeaver::WorkingHardState::applyForWork (this=0x2fbce60, th=0x71b2ed0, previous=0x1217c560) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f456df8e71f in ThreadWeaver::Thread::run (this=0x71b2ed0) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007f457237cbec in QThreadPrivate::start (arg=0x71b2ed0) at thread/qthread_unix.cpp:338
#7  0x00007f45693eff8e in start_thread (arg=0x7f44b9aa1700) at pthread_create.c:311
#8  0x00007f45758cba0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f44a06e6700 (LWP 6401)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f457237d14b in wait (time=18446744073709551615, this=0x2fdc590) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x2fca468, mutex=0x2fbce00, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f456df8d0e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2fca440, th=0x106fc400) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f456df8f9cb in ThreadWeaver::WorkingHardState::applyForWork (this=0x2fbce60, th=0x106fc400, previous=0x0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f456df8e71f in ThreadWeaver::Thread::run (this=0x106fc400) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007f457237cbec in QThreadPrivate::start (arg=0x106fc400) at thread/qthread_unix.cpp:338
#7  0x00007f45693eff8e in start_thread (arg=0x7f44a06e6700) at pthread_create.c:311
#8  0x00007f45758cba0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f449fee5700 (LWP 6402)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f457237d14b in wait (time=18446744073709551615, this=0x2fdc590) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x2fca468, mutex=0x2fbce00, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f456df8d0e1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2fca440, th=0x41ad310) at ../../../threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f456df8f9cb in ThreadWeaver::WorkingHardState::applyForWork (this=0x2fbce60, th=0x41ad310, previous=0x5a149c0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f456df8e71f in ThreadWeaver::Thread::run (this=0x41ad310) at ../../../threadweaver/Weaver/Thread.cpp:98
#6  0x00007f457237cbec in QThreadPrivate::start (arg=0x41ad310) at thread/qthread_unix.cpp:338
#7  0x00007f45693eff8e in start_thread (arg=0x7f449fee5700) at pthread_create.c:311
#8  0x00007f45758cba0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f4575fce7c0 (LWP 2695)):
[KCrash Handler]
#6  0x00007f457248b164 in QObject::killTimer (this=0x12196490, id=0) at kernel/qobject.cpp:1602
#7  0x00007f4572496ca1 in QTimer::stop (this=this@entry=0x12196490) at kernel/qtimer.cpp:266
#8  0x00007f4572496cbf in QTimer::start (this=0x12196490) at kernel/qtimer.cpp:216
#9  0x00007f4572496d08 in QTimer::start (this=<optimized out>, msec=msec@entry=800) at kernel/qtimer.cpp:234
#10 0x00007f44c96e883e in mousePressEvent (me=<optimized out>, this=0x5cb5240) at ../../../../plasma/declarativeimports/qtextracomponents/mouseeventlistener.cpp:110
#11 MouseEventListener::mousePressEvent (this=0x5cb5240, me=<optimized out>) at ../../../../plasma/declarativeimports/qtextracomponents/mouseeventlistener.cpp:90
#12 0x00007f4571ddee57 in QGraphicsItem::sceneEvent (this=this@entry=0x5cb5250, event=event@entry=0x7fff1c8f5030) at graphicsview/qgraphicsitem.cpp:6739
#13 0x00007f4574073ef2 in QDeclarativeItem::sceneEvent (this=0x5cb5240, event=0x7fff1c8f5030) at graphicsitems/qdeclarativeitem.cpp:3049
#14 0x00007f4571e09640 in sendMouseEvent (mouseEvent=0x7fff1c8f5030, this=0x1053380) at graphicsview/qgraphicsscene.cpp:1295
#15 QGraphicsScenePrivate::sendMouseEvent (this=0x1053380, mouseEvent=0x7fff1c8f5030) at graphicsview/qgraphicsscene.cpp:1274
#16 0x00007f4571e1de26 in QGraphicsScenePrivate::mousePressEventHandler (this=this@entry=0x1053380, mouseEvent=mouseEvent@entry=0x7fff1c8f5030) at graphicsview/qgraphicsscene.cpp:1422
#17 0x00007f4571e1e32f in QGraphicsScene::mousePressEvent (this=<optimized out>, mouseEvent=0x7fff1c8f5030) at graphicsview/qgraphicsscene.cpp:4074
#18 0x00007f4571e1d43a in QGraphicsScene::event (this=0x1148100, event=0x7fff1c8f5030) at graphicsview/qgraphicsscene.cpp:3455
#19 0x00007f457181f8ec in QApplicationPrivate::notify_helper (this=this@entry=0x1002bb0, receiver=receiver@entry=0x1148100, e=e@entry=0x7fff1c8f5030) at kernel/qapplication.cpp:4567
#20 0x00007f457182225b in QApplication::notify (this=this@entry=0xff6830, receiver=receiver@entry=0x1148100, e=e@entry=0x7fff1c8f5030) at kernel/qapplication.cpp:4428
#21 0x00007f457313b9b6 in KApplication::notify (this=0xff6830, receiver=0x1148100, event=0x7fff1c8f5030) at ../../kdeui/kernel/kapplication.cpp:311
#22 0x00007f457247963e in QCoreApplication::notifyInternal (this=0xff6830, receiver=0x1148100, event=0x7fff1c8f5030, event@entry=0x7fff1c8f4fb0) at kernel/qcoreapplication.cpp:946
#23 0x00007f457181e226 in sendSpontaneousEvent (event=event@entry=0x7fff1c8f4fb0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#24 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fff1c8f5030) at kernel/qapplication.cpp:5565
#25 0x00007f4571e34c31 in QGraphicsView::mousePressEvent (this=0x247ffd0, event=0x7fff1c8f5960) at graphicsview/qgraphicsview.cpp:3164
#26 0x00007f457186ca70 in QWidget::event (this=this@entry=0x247ffd0, event=event@entry=0x7fff1c8f5960) at kernel/qwidget.cpp:8371
#27 0x00007f4571c1f486 in QFrame::event (this=0x247ffd0, e=0x7fff1c8f5960) at widgets/qframe.cpp:557
#28 0x00007f4571e3724b in QGraphicsView::viewportEvent (this=0x247ffd0, event=0x7fff1c8f5960) at graphicsview/qgraphicsview.cpp:2866
#29 0x00007f45724797a6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x1002bb0, receiver=receiver@entry=0x15bbaa0, event=event@entry=0x7fff1c8f5960) at kernel/qcoreapplication.cpp:1056
#30 0x00007f457181f8bc in QApplicationPrivate::notify_helper (this=this@entry=0x1002bb0, receiver=receiver@entry=0x15bbaa0, e=e@entry=0x7fff1c8f5960) at kernel/qapplication.cpp:4563
#31 0x00007f4571822a33 in QApplication::notify (this=this@entry=0xff6830, receiver=receiver@entry=0x15bbaa0, e=e@entry=0x7fff1c8f5960) at kernel/qapplication.cpp:4110
#32 0x00007f457313b9b6 in KApplication::notify (this=0xff6830, receiver=0x15bbaa0, event=0x7fff1c8f5960) at ../../kdeui/kernel/kapplication.cpp:311
#33 0x00007f457247963e in QCoreApplication::notifyInternal (this=0xff6830, receiver=receiver@entry=0x15bbaa0, event=event@entry=0x7fff1c8f5960) at kernel/qcoreapplication.cpp:946
#34 0x00007f4571825933 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#35 QApplicationPrivate::sendMouseEvent (receiver=0x15bbaa0, event=event@entry=0x7fff1c8f5960, alienWidget=0x15bbaa0, nativeWidget=nativeWidget@entry=0x270a450, buttonDown=buttonDown@entry=0x7f45722fd308 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#36 0x00007f457189ad1c in QETWidget::translateMouseEvent (this=this@entry=0x270a450, event=event@entry=0x7fff1c8f60e0) at kernel/qapplication_x11.cpp:4565
#37 0x00007f4571899e81 in QApplication::x11ProcessEvent (this=0xff6830, event=event@entry=0x7fff1c8f60e0) at kernel/qapplication_x11.cpp:3746
#38 0x00007f45718c5042 in x11EventSourceDispatch (s=0x1002090, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#39 0x00007f4568cecf05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007f4568ced248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007f4568ced304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007f45724a8016 in QEventDispatcherGlib::processEvents (this=0xf3ead0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#43 0x00007f45718c513e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#44 0x00007f457247838f in QEventLoop::processEvents (this=this@entry=0x7fff1c8f64b0, flags=...) at kernel/qeventloop.cpp:149
#45 0x00007f4572478618 in QEventLoop::exec (this=this@entry=0x7fff1c8f64b0, flags=...) at kernel/qeventloop.cpp:204
#46 0x00007f457247dcf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#47 0x00007f457181dffc in QApplication::exec () at kernel/qapplication.cpp:3828
#48 0x00007f4575bd73eb in kdemain (argc=1, argv=0x7fff1c8f67a8) at ../../../../plasma/desktop/shell/main.cpp:126
#49 0x00007f45757f2ea5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fff1c8f67a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff1c8f6798) at libc-start.c:260
#50 0x0000000000400711 in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 326941.

Possible duplicates by query: bug 330766, bug 330109, bug 327435, bug 326941, bug 325880.

Reported using DrKonqi