Application: gwenview (2.9.0)
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:
I click on "open the background image" in the right click menu.
Gwenview opens.
When I click on close, it crashes, simply.

- Custom settings of the application:
My desktop is in Folder View and I set a Slide-Show

The crash can be reproduced every time.

-- Backtrace:
Application: Gwenview (gwenview), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe3ac2567c0 (LWP 6730))]

Thread 4 (Thread 0x7fe392311700 (LWP 6731)):
#0  0x00007fe3a53ff33c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fe3a53ff5c9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe3a53c398b in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe3a53c3faa in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe3a53c449a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe39293898b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#6  0x00007fe3a53e59e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fe3a2444b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#8  0x00007fe3a5a84e9a in start_thread (arg=0x7fe392311700) at pthread_create.c:308
#9  0x00007fe3a8c204bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fe391b10700 (LWP 6732)):
#0  0x00007fe3a5a86f69 in __pthread_mutex_lock (mutex=0x7fe38c00efd0) at pthread_mutex_lock.c:92
#1  0x00007fe3a53ff5a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe3a53c3914 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe3a53c3faa in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe3a53c449a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe3986b5406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007fe3a53e59e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fe3a2444b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#8  0x00007fe3a5a84e9a in start_thread (arg=0x7fe391b10700) at pthread_create.c:308
#9  0x00007fe3a8c204bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fe37f1c3700 (LWP 6738)):
#0  0x00007fff89bff8de in ?? ()
#1  0x00007fe3a567515d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007fe3aafc6c64 in do_gettime (frac=0x7fe37f1c2a98, sec=0x7fe37f1c2a90) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007fe3ab09f14d in QTimerInfoList::updateCurrentTime (this=0x7fe378002860) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007fe3ab09f483 in QTimerInfoList::timerWait (this=0x7fe378002860, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007fe3ab09df3c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7fe37f1c2b6c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007fe3ab09dfe5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007fe3a53c3846 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fe3a53c3f5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fe3a53c4164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fe3ab09e9e6 in QEventDispatcherGlib::processEvents (this=0x7fe3780008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007fe3ab06df22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007fe3ab06e177 in QEventLoop::exec (this=0x7fe37f1c2cd0, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007fe3aaf6d057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#15 0x00007fe3ab04dc2f in QInotifyFileSystemWatcherEngine::run (this=0x2336a50) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007fe3aaf7007b in QThreadPrivate::start (arg=0x2336a50) at thread/qthread_unix.cpp:307
#17 0x00007fe3a2444b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#18 0x00007fe3a5a84e9a in start_thread (arg=0x7fe37f1c3700) at pthread_create.c:308
#19 0x00007fe3a8c204bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#20 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fe3ac2567c0 (LWP 6730)):
[KCrash Handler]
#6  0x00007fe3aaa56082 in lockInline (this=0x220cc78) at /usr/include/qt4/QtCore/qmutex.h:187
#7  QMutexLocker (m=0x220cc78, this=<synthetic pointer>) at /usr/include/qt4/QtCore/qmutex.h:109
#8  Nepomuk::Resource::~Resource (this=0x7fe36c02d7c0, __in_chrg=<optimized out>) at ../../nepomuk/core/resource.cpp:142
#9  0x00007fe3aaa56309 in Nepomuk::Resource::~Resource (this=0x7fe36c02d7c0, __in_chrg=<optimized out>) at ../../nepomuk/core/resource.cpp:147
#10 0x00007fe3ab07fe69 in QMetaCallEvent::~QMetaCallEvent (this=0x7fe36c035990, __in_chrg=<optimized out>) at kernel/qobject.cpp:509
#11 0x00007fe3ab07fec9 in QMetaCallEvent::~QMetaCallEvent (this=0x7fe36c035990, __in_chrg=<optimized out>) at kernel/qobject.cpp:518
#12 0x00007fe3ab07286b in QCoreApplicationPrivate::~QCoreApplicationPrivate (this=0x1e92030, __in_chrg=<optimized out>) at kernel/qcoreapplication.cpp:449
#13 0x00007fe3a988c7b9 in QApplicationPrivate::~QApplicationPrivate (this=0x1e92030, __in_chrg=<optimized out>) at kernel/qapplication.cpp:223
#14 0x00007fe3ab088190 in cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:62
#15 ~QScopedPointer (this=0x7fff89b0c1a8, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:100
#16 QObject::~QObject (this=0x7fff89b0c1a0, __in_chrg=<optimized out>) at kernel/qobject.cpp:817
#17 0x00007fe3a98972be in QApplication::~QApplication (this=0x7fff89b0c1a0, __in_chrg=<optimized out>) at kernel/qapplication.cpp:1100
#18 0x0000000000427285 in main (argc=6, argv=0x7fff89b0c4c8) at ../../app/main.cpp:142

Reported using DrKonqi