Application: systemsettings (1.0)
KDE Platform Version: 4.9.00
Qt Version: 4.8.2
Operating System: Linux 3.2.0-29-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:
System Config
- elements having difficulties:

Windows showing latency of movement.

- Unusual behavior I noticed:

Application: System settings(systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3d1e2cf7c0 (LWP 4861))]

Thread 3 (Thread 0x7f3cff612700 (LWP 4863)):
#0  0x00007f3d1b267b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f3d149b8036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3d149b8164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3d1b9e89e6 in QEventDispatcherGlib::processEvents (this=0x7f3cf80008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f3d1b9b7f22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f3d1b9b8177 in QEventLoop::exec (this=0x7f3cff611cd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f3d1b8b7057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f3d1b997c2f in QInotifyFileSystemWatcherEngine::run (this=0x245aec0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f3d1b8ba07b in QThreadPrivate::start (arg=0x245aec0) at thread/qthread_unix.cpp:307
#9  0x00007f3d1027bb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f3d14e84e9a in start_thread (arg=0x7f3cff612700) at pthread_create.c:308
#11 0x00007f3d1b2734bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f3cfdcb2700 (LWP 4868)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f3d190ad022 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f3d190ad059 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f3d1027bb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f3d14e84e9a in start_thread (arg=0x7f3cfdcb2700) at pthread_create.c:308
#5  0x00007f3d1b2734bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f3d1e2cf7c0 (LWP 4861)):
[KCrash Handler]
#6  0x00007f3d183059ee in QDeclarativeItem::~QDeclarativeItem (this=0x57df730, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f3d182c8af5 in ~QDeclarativeElement (this=0x57df730, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x57df730, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#9  0x00007f3d1b9d2a38 in QObject::event (this=0x57df730, e=<optimized out>) at kernel/qobject.cpp:1176
#10 0x00007f3d1c6307b4 in notify_helper (e=0x3a110b0, receiver=0x57df730, this=0x1e834d0) at kernel/qapplication.cpp:4556
#11 QApplicationPrivate::notify_helper (this=0x1e834d0, receiver=0x57df730, e=0x3a110b0) at kernel/qapplication.cpp:4528
#12 0x00007f3d1c635583 in QApplication::notify (this=0x7fff001e3a90, receiver=0x57df730, e=0x3a110b0) at kernel/qapplication.cpp:4417
#13 0x00007f3d1d36b456 in KApplication::notify (this=0x7fff001e3a90, receiver=0x57df730, event=0x3a110b0) at ../../kdeui/kernel/kapplication.cpp:311
#14 0x00007f3d1b9b93ec in QCoreApplication::notifyInternal (this=0x7fff001e3a90, receiver=0x57df730, event=0x3a110b0) at kernel/qcoreapplication.cpp:915
#15 0x00007f3d1b9bd1ca in sendEvent (event=0x3a110b0, receiver=0x57df730) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#16 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1db41f0) at kernel/qcoreapplication.cpp:1539
#17 0x00007f3d1b9e8553 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007f3d149b7d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f3d149b80a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f3d149b8164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f3d1b9e897f in QEventDispatcherGlib::processEvents (this=0x1db5ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f3d1c6d8cde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f3d1b9b7f22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f3d1b9b8177 in QEventLoop::exec (this=0x7fff001e3a20, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f3d1b9bd4c7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#27 0x000000000040a9e5 in main (argc=5, argv=0x7fff001e3d58) at ../../../systemsettings/app/main.cpp:49

The crash can be reproduced some of the time.

-- Backtrace:
Application: Configuration du système (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3d1e2cf7c0 (LWP 4861))]

Thread 3 (Thread 0x7f3cff612700 (LWP 4863)):
#0  0x00007f3d1b267b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f3d149b8036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3d149b8164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3d1b9e89e6 in QEventDispatcherGlib::processEvents (this=0x7f3cf80008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f3d1b9b7f22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f3d1b9b8177 in QEventLoop::exec (this=0x7f3cff611cd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f3d1b8b7057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f3d1b997c2f in QInotifyFileSystemWatcherEngine::run (this=0x245aec0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f3d1b8ba07b in QThreadPrivate::start (arg=0x245aec0) at thread/qthread_unix.cpp:307
#9  0x00007f3d1027bb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f3d14e84e9a in start_thread (arg=0x7f3cff612700) at pthread_create.c:308
#11 0x00007f3d1b2734bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f3cfdcb2700 (LWP 4868)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f3d190ad022 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f3d190ad059 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f3d1027bb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f3d14e84e9a in start_thread (arg=0x7f3cfdcb2700) at pthread_create.c:308
#5  0x00007f3d1b2734bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f3d1e2cf7c0 (LWP 4861)):
[KCrash Handler]
#6  0x00007f3d183059ee in QDeclarativeItem::~QDeclarativeItem (this=0x57df730, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f3d182c8af5 in ~QDeclarativeElement (this=0x57df730, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x57df730, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#9  0x00007f3d1b9d2a38 in QObject::event (this=0x57df730, e=<optimized out>) at kernel/qobject.cpp:1176
#10 0x00007f3d1c6307b4 in notify_helper (e=0x3a110b0, receiver=0x57df730, this=0x1e834d0) at kernel/qapplication.cpp:4556
#11 QApplicationPrivate::notify_helper (this=0x1e834d0, receiver=0x57df730, e=0x3a110b0) at kernel/qapplication.cpp:4528
#12 0x00007f3d1c635583 in QApplication::notify (this=0x7fff001e3a90, receiver=0x57df730, e=0x3a110b0) at kernel/qapplication.cpp:4417
#13 0x00007f3d1d36b456 in KApplication::notify (this=0x7fff001e3a90, receiver=0x57df730, event=0x3a110b0) at ../../kdeui/kernel/kapplication.cpp:311
#14 0x00007f3d1b9b93ec in QCoreApplication::notifyInternal (this=0x7fff001e3a90, receiver=0x57df730, event=0x3a110b0) at kernel/qcoreapplication.cpp:915
#15 0x00007f3d1b9bd1ca in sendEvent (event=0x3a110b0, receiver=0x57df730) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#16 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1db41f0) at kernel/qcoreapplication.cpp:1539
#17 0x00007f3d1b9e8553 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007f3d149b7d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f3d149b80a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f3d149b8164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f3d1b9e897f in QEventDispatcherGlib::processEvents (this=0x1db5ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f3d1c6d8cde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f3d1b9b7f22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f3d1b9b8177 in QEventLoop::exec (this=0x7fff001e3a20, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f3d1b9bd4c7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#27 0x000000000040a9e5 in main (argc=5, argv=0x7fff001e3d58) at ../../../systemsettings/app/main.cpp:49

Possible duplicates by query: bug 306159, bug 304617.

Reported using DrKonqi