Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.1
Operating System: Linux 3.3.7-999-optimus x86_64
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed: as the title states, I was shutting down my pc when this crash report popped up! this is the third time I experience this crash! It is annoying.

The crash can be reproduced some of the time.

-- 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 0x7f8ed4b4b7c0 (LWP 2540))]

Thread 7 (Thread 0x7f8ea83f3700 (LWP 2637)):
#0  0x00007f8ed441fb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8ec85de036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8ec85de164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8ed15f1426 in QEventDispatcherGlib::processEvents (this=0x7f8ea00008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f8ed15c0c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8ed15c0ed7 in QEventLoop::exec (this=0x7f8ea83f2cd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f8ed14bffa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f8ed15a09ff in QInotifyFileSystemWatcherEngine::run (this=0x33bb4f0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f8ed14c2fcb in QThreadPrivate::start (arg=0x33bb4f0) at thread/qthread_unix.cpp:298
#9  0x00007f8ec5d234d4 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f8ec8ee2e9a in start_thread (arg=0x7f8ea83f3700) at pthread_create.c:308
#11 0x00007f8ed442b4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f8ea77a3700 (LWP 2639)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f8ece3a5222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f8ece3a5259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f8ec5d234d4 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f8ec8ee2e9a in start_thread (arg=0x7f8ea77a3700) at pthread_create.c:308
#5  0x00007f8ed442b4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f8ea4bd7700 (LWP 2644)):
#0  0x00007f8ed441fb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8ec85de036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8ec85de49a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8ea58dd406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f8ec85ff9e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8ec5d234d4 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007f8ec8ee2e9a in start_thread (arg=0x7f8ea4bd7700) at pthread_create.c:308
#7  0x00007f8ed442b4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f8e95d8a700 (LWP 2654)):
#0  0x00007ffffc33870a in ?? ()
#1  0x00007ffffc338959 in ?? ()
#2  0x00007f8ec888f15d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#3  0x00007f8ed1519bb4 in do_gettime (frac=0x7f8e95d89a98, sec=0x7f8e95d89a90) at tools/qelapsedtimer_unix.cpp:123
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#5  0x00007f8ed15f1b8d in QTimerInfoList::updateCurrentTime (this=0x7f8e88002660) at kernel/qeventdispatcher_unix.cpp:343
#6  0x00007f8ed15f1ec3 in QTimerInfoList::timerWait (this=0x7f8e88002660, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#7  0x00007f8ed15f097c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f8e95d89b6c) at kernel/qeventdispatcher_glib.cpp:136
#8  0x00007f8ed15f0a25 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#9  0x00007f8ec85dd846 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f8ec85ddf5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f8ec85de164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f8ed15f1426 in QEventDispatcherGlib::processEvents (this=0x7f8e880008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#13 0x00007f8ed15c0c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#14 0x00007f8ed15c0ed7 in QEventLoop::exec (this=0x7f8e95d89cd0, flags=...) at kernel/qeventloop.cpp:204
#15 0x00007f8ed14bffa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#16 0x00007f8ed15a09ff in QInotifyFileSystemWatcherEngine::run (this=0x394c050) at io/qfilesystemwatcher_inotify.cpp:248
#17 0x00007f8ed14c2fcb in QThreadPrivate::start (arg=0x394c050) at thread/qthread_unix.cpp:298
#18 0x00007f8ec5d234d4 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#19 0x00007f8ec8ee2e9a in start_thread (arg=0x7f8e95d8a700) at pthread_create.c:308
#20 0x00007f8ed442b4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#21 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f8e76da3700 (LWP 2685)):
#0  0x00007f8ed441fb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8ec85de036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8ec85de164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8ed15f1426 in QEventDispatcherGlib::processEvents (this=0x7f8e6c0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f8ed15c0c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8ed15c0ed7 in QEventLoop::exec (this=0x7f8e76da2cd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f8ed14bffa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f8ed15a09ff in QInotifyFileSystemWatcherEngine::run (this=0x5b73730) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f8ed14c2fcb in QThreadPrivate::start (arg=0x5b73730) at thread/qthread_unix.cpp:298
#9  0x00007f8ec5d234d4 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f8ec8ee2e9a in start_thread (arg=0x7f8e76da3700) at pthread_create.c:308
#11 0x00007f8ed442b4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f8e56fcc700 (LWP 2712)):
#0  0x00007f8ed441fb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8ec85de036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8ec85de164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8ed15f1426 in QEventDispatcherGlib::processEvents (this=0x7f8e40002ef0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f8ed15c0c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8ed15c0ed7 in QEventLoop::exec (this=0x7f8e56fcbd00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f8ed14bffa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f8ed14c2fcb in QThreadPrivate::start (arg=0x5bc6690) at thread/qthread_unix.cpp:298
#8  0x00007f8ec5d234d4 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f8ec8ee2e9a in start_thread (arg=0x7f8e56fcc700) at pthread_create.c:308
#10 0x00007f8ed442b4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f8ed4b4b7c0 (LWP 2540)):
[KCrash Handler]
#6  0x00000000017eaa60 in ?? ()
#7  0x00007f8ecd600911 in QDeclarativeItem::~QDeclarativeItem (this=0x552fc60, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#8  0x00007f8ecd5c3a35 in ~QDeclarativeElement (this=0x552fc60, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#9  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x552fc60, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#10 0x00007f8ed15db478 in QObject::event (this=0x552fc60, e=<optimized out>) at kernel/qobject.cpp:1176
#11 0x00007f8ed0944894 in notify_helper (e=0x4aa4670, receiver=0x552fc60, this=0x184cae0) at kernel/qapplication.cpp:4559
#12 QApplicationPrivate::notify_helper (this=0x184cae0, receiver=0x552fc60, e=0x4aa4670) at kernel/qapplication.cpp:4531
#13 0x00007f8ed0949713 in QApplication::notify (this=0x17e9d80, receiver=0x552fc60, e=0x4aa4670) at kernel/qapplication.cpp:4420
#14 0x00007f8ed22a59e6 in KApplication::notify (this=0x17e9d80, receiver=0x552fc60, event=0x4aa4670) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007f8ed15c1e9c in QCoreApplication::notifyInternal (this=0x17e9d80, receiver=0x552fc60, event=0x4aa4670) at kernel/qcoreapplication.cpp:876
#16 0x00007f8ed15c5c6a in sendEvent (event=0x4aa4670, receiver=0x552fc60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x17451f0) at kernel/qcoreapplication.cpp:1500
#18 0x00007f8ed15c5f9e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1155
#19 0x00007f8ed4737a13 in kdemain (argc=1, argv=0x7ffffc2ee568) at ../../../../plasma/desktop/shell/main.cpp:120
#20 0x00007f8ed435a76d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7ffffc2ee568, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffffc2ee558) at libc-start.c:226
#21 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 300393.

Possible duplicates by query: bug 302336, bug 301867, bug 300393, bug 299632, bug 295858.

Reported using DrKonqi