Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-28-generic x86_64
Distribution: Ubuntu 10.10

-- Information about the crash:
- What I was doing when the application crashed:
Closing desktop settings-plasma sesktop shell after downloading some wallpapers

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f43287bc7a0 (LWP 1455))]

Thread 3 (Thread 0x7f430ae35700 (LWP 1456)):
#0  0x00007f43280b5203 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f431cd53009 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f431cd5345c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f432521b1e6 in QEventDispatcherGlib::processEvents (this=0x166f150, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#4  0x00007f43251eda02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f43251eddec in QEventLoop::exec (this=0x7f430ae34cb0, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f43250f82fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007f43251cd5f8 in QInotifyFileSystemWatcherEngine::run (this=0x1753f60) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f43250fb27e in QThreadPrivate::start (arg=0x1753f60) at thread/qthread_unix.cpp:266
#9  0x00007f431adc7953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f431d405971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#11 0x00007f43280c192d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f4308860700 (LWP 1458)):
#0  pthread_mutex_unlock (mutex=0x179b5d8) at forward.c:184
#1  0x00007f431cd5272d in g_main_context_check () from /lib/libglib-2.0.so.0
#2  0x00007f431cd53023 in ?? () from /lib/libglib-2.0.so.0
#3  0x00007f431cd5345c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#4  0x00007f432521b1e6 in QEventDispatcherGlib::processEvents (this=0x179a9c0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#5  0x00007f43251eda02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#6  0x00007f43251eddec in QEventLoop::exec (this=0x7f430885fcb0, flags=) at kernel/qeventloop.cpp:201
#7  0x00007f43250f82fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#8  0x00007f43251cd5f8 in QInotifyFileSystemWatcherEngine::run (this=0x179a000) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f43250fb27e in QThreadPrivate::start (arg=0x179a000) at thread/qthread_unix.cpp:266
#10 0x00007f431adc7953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x00007f431d405971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#12 0x00007f43280c192d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f43287bc7a0 (LWP 1455)):
[KCrash Handler]
#6  QAbstractItemView::update (this=0x7f43255207c0, index=...) at itemviews/qabstractitemview.cpp:3133
#7  0x00007f430b68a965 in BackgroundListModel::showPreview (this=0x2264320, item=<value optimized out>, preview=<value optimized out>) at ../../../../../plasma/generic/wallpapers/image/backgroundlistmodel.cpp:292
#8  0x00007f430b68ab64 in BackgroundListModel::qt_metacall (this=0x2264320, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff44436a40) at ./backgroundlistmodel.moc:149
#9  0x00007f4325206b27 in QMetaObject::activate (sender=0x4913650, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x21d5c10) at kernel/qobject.cpp:3280
#10 0x00007f432777b787 in KIO::PreviewJob::gotPreview (this=0x7f43255207c0, _t1=<value optimized out>, _t2=<value optimized out>) at ./previewjob.moc:99
#11 0x00007f432777b8a4 in KIO::PreviewJobPrivate::emitPreview (this=0x4bb3140, thumb=...) at ../../kio/kio/previewjob.cpp:610
#12 0x00007f432777ea1b in KIO::PreviewJobPrivate::statResultThumbnail (this=0x4bb3140) at ../../kio/kio/previewjob.cpp:466
#13 0x00007f432777f11d in KIO::PreviewJob::slotResult (this=<value optimized out>, job=<value optimized out>) at ../../kio/kio/previewjob.cpp:392
#14 0x00007f43277809b1 in KIO::PreviewJob::qt_metacall (this=0x4913650, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff44437020) at ./previewjob.moc:85
#15 0x00007f4325206b27 in QMetaObject::activate (sender=0x4aca730, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x21d5c10) at kernel/qobject.cpp:3280
#16 0x00007f43258d7be2 in KJob::result (this=0x7f43255207c0, _t1=0x4aca730) at ./kjob.moc:194
#17 0x00007f43258d7e80 in KJob::emitResult (this=0x4aca730) at ../../kdecore/jobs/kjob.cpp:312
#18 0x00007f43276f24c3 in KIO::SimpleJob::slotFinished (this=0x4aca730) at ../../kio/kio/job.cpp:525
#19 0x00007f43276f2962 in KIO::StatJob::slotFinished (this=0x4aca730) at ../../kio/kio/job.cpp:924
#20 0x00007f43276f1ab5 in KIO::StatJob::qt_metacall (this=0x4aca730, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff44437300) at ./jobclasses.moc:252
#21 0x00007f4325206b27 in QMetaObject::activate (sender=0x4aad150, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x21d5c10) at kernel/qobject.cpp:3280
#22 0x00007f43277a501e in KIO::SlaveInterface::dispatch (this=0x4aad150, _cmd=104, rawdata=...) at ../../kio/kio/slaveinterface.cpp:173
#23 0x00007f43277a2063 in KIO::SlaveInterface::dispatch (this=0x4aad150) at ../../kio/kio/slaveinterface.cpp:89
#24 0x00007f43277959f6 in KIO::Slave::gotInput (this=0x4aad150) at ../../kio/kio/slave.cpp:348
#25 0x00007f4327795bdc in KIO::Slave::qt_metacall (this=0x4aad150, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff44437780) at ./slave.moc:82
#26 0x00007f4325206b27 in QMetaObject::activate (sender=0x4ad9e60, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x21d5c10) at kernel/qobject.cpp:3280
#27 0x00007f43276bef27 in KIO::ConnectionPrivate::dequeue (this=0x4aac1b0) at ../../kio/kio/connection.cpp:82
#28 0x00007f43276bf04d in KIO::Connection::qt_metacall (this=0x4ad9e60, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x4ad68d0) at ./connection.moc:79
#29 0x00007f4325200bde in QObject::event (this=0x4ad9e60, e=0x7f43255207c0) at kernel/qobject.cpp:1219
#30 0x00007f4324555fdc in QApplicationPrivate::notify_helper (this=0x1080610, receiver=0x4ad9e60, e=0x4b27570) at kernel/qapplication.cpp:4396
#31 0x00007f432455baed in QApplication::notify (this=0x106db20, receiver=0x4ad9e60, e=0x4b27570) at kernel/qapplication.cpp:4277
#32 0x00007f4325ef52f6 in KApplication::notify (this=0x106db20, receiver=0x4ad9e60, event=0x4b27570) at ../../kdeui/kernel/kapplication.cpp:311
#33 0x00007f43251eecdc in QCoreApplication::notifyInternal (this=0x106db20, receiver=0x4ad9e60, event=0x4b27570) at kernel/qcoreapplication.cpp:732
#34 0x00007f43251f1c22 in sendEvent (receiver=0x0, event_type=<value optimized out>, data=0xfef7a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#35 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0xfef7a0) at kernel/qcoreapplication.cpp:1373
#36 0x00007f432521b653 in sendPostedEvents (s=0x1084900) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#37 postEventSourceDispatch (s=0x1084900) at kernel/qeventdispatcher_glib.cpp:277
#38 0x00007f431cd4f342 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#39 0x00007f431cd532a8 in ?? () from /lib/libglib-2.0.so.0
#40 0x00007f431cd5345c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#41 0x00007f432521b193 in QEventDispatcherGlib::processEvents (this=0xfef2b0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#42 0x00007f4324608a4e in QGuiEventDispatcherGlib::processEvents (this=0x7f43255207c0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#43 0x00007f43251eda02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#44 0x00007f43251eddec in QEventLoop::exec (this=0x7fff444381d0, flags=) at kernel/qeventloop.cpp:201
#45 0x00007f43251f1ebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#46 0x00007f432839ffb3 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:118
#47 0x00007f4327ff9d8e in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff444385a8) at libc-start.c:226
#48 0x0000000000400669 in _start ()

Reported using DrKonqi