Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-14-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
When I try to change the wallpaper and go to the "browse" button, nothing happens and plasma freezes (including cashew, pannel, desktop settings, etc).  After a while, crashes and bug report appears.  
Also have problems with the quick access plasmoid, doesn't show anything at all no matter what folder to show I choose.  I mention it just in case it could be related.

 -- Backtrace:
Application: Área de trabajo de Plasma (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7fa89c256750 (LWP 1818))]

Thread 3 (Thread 0x7fa875c1c910 (LWP 1827)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007fa89bc924fb in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x17fd1d8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x17fd1d8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007fa8980c978c in QHostInfoAgent::run (this=0x17fd1c0) at kernel/qhostinfo.cpp:260
#4  0x00007fa89bc91445 in QThreadPrivate::start (arg=0x17fd1c0) at thread/qthread_unix.cpp:188
#5  0x00007fa898a07a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007fa8995e77bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fa86d7d5910 (LWP 1828)):
#0  0x00007fa8995db373 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=713) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fa898c5c36c in ?? () from /lib/libglib-2.0.so.0
#2  0x00007fa898c5c6b0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007fa89bda01fe in QEventDispatcherGlib::processEvents (this=0x25bb320, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:329
#4  0x00007fa89bd76532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007fa89bd76904 in QEventLoop::exec (this=0x7fa86d7d1370, flags=) at kernel/qeventloop.cpp:201
#6  0x00007fa89aee869c in KIO::NetAccess::enter_loop (this=0x7fa86d7d1410) at ../../kio/kio/netaccess.cpp:502
#7  0x00007fa89aee8cef in KIO::NetAccess::synchronousRunInternal (this=0x7fa86d7d1410, job=0x20ca240, window=<value optimized out>, data=0x7fa86d7d1500, finalURL=0x0, metaData=0x0)
    at ../../kio/kio/netaccess.cpp:487
#8  0x00007fa89aee9371 in KIO::NetAccess::synchronousRun (job=0x20ca240, window=0x0, data=0x7fa86d7d1500, finalURL=0x0, metaData=<value optimized out>) at ../../kio/kio/netaccess.cpp:277
#9  0x00007fa8778265f5 in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#10 0x00007fa8778318b0 in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#11 0x00007fa8778326cc in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#12 0x00007fa89bc91445 in QThreadPrivate::start (arg=0x25c4310) at thread/qthread_unix.cpp:188
#13 0x00007fa898a07a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#14 0x00007fa8995e77bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 1 (Thread 0x7fa89c256750 (LWP 1818)):
[KCrash Handler]
#5  0x00007fa8912687da in KFileWidget (this=0x2998e00, _startDir=<value optimized out>, parent=<value optimized out>) at ../../kfile/kfilewidget.cpp:598
#6  0x00007fa86b007b24 in KFileModule::createFileWidget (this=<value optimized out>, startDir=..., parent=0x2c2e8a0) at ../../kfile/kfilemodule.cpp:36
#7  0x00007fa89af56456 in KFileDialog (this=0x2c2e8a0, startDir=..., filter=..., parent=<value optimized out>, customWidget=<value optimized out>) at ../../kio/kfile/kfiledialog.cpp:238
#8  0x00007fa87a49e57a in Image::showFileDialog (this=0x260b000) at ../../../../plasma/wallpapers/image/image.cpp:471
#9  0x00007fa87a49f284 in Image::qt_metacall (this=0x260b000, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff8cb8ff60) at ./image.moc:106
#10 0x00007fa89bd8cddc in QMetaObject::activate (sender=0xd6b570, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x7fa870017b90) at kernel/qobject.cpp:3113
#11 0x00007fa89a3298e7 in QAbstractButton::clicked (this=0x7fa870000020, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:200
#12 0x00007fa89a08b41b in QAbstractButtonPrivate::emitClicked (this=0xd5e4e0) at widgets/qabstractbutton.cpp:543
#13 0x00007fa89a08d02b in QAbstractButtonPrivate::click (this=0xd5e4e0) at widgets/qabstractbutton.cpp:536
#14 0x00007fa89a08d275 in QAbstractButton::mouseReleaseEvent (this=0xd6b570, e=0x7fff8cb90690) at widgets/qabstractbutton.cpp:1115
#15 0x00007fa89a15bcba in QToolButton::mouseReleaseEvent (this=0x7fa870000020, e=0x7fff8cb8f480) at widgets/qtoolbutton.cpp:709
#16 0x00007fa899d769c0 in QWidget::event (this=0xd6b570, event=0x7fff8cb90690) at kernel/qwidget.cpp:7549
#17 0x00007fa899d27efc in QApplicationPrivate::notify_helper (this=0xd28f00, receiver=0xd6b570, e=0x7fff8cb90690) at kernel/qapplication.cpp:4056
#18 0x00007fa899d2f011 in QApplication::notify (this=<value optimized out>, receiver=0xd6b570, e=0x7fff8cb90690) at kernel/qapplication.cpp:3758
#19 0x00007fa89a95eab6 in KApplication::notify (this=0xd1fd20, receiver=0xd6b570, event=0x7fff8cb90690) at ../../kdeui/kernel/kapplication.cpp:302
#20 0x00007fa89bd77c2c in QCoreApplication::notifyInternal (this=0xd1fd20, receiver=0xd6b570, event=0x7fff8cb90690) at kernel/qcoreapplication.cpp:610
#21 0x00007fa899d2e8e0 in QCoreApplication::sendSpontaneousEvent (receiver=0xd6b570, event=0x7fff8cb90690, alienWidget=0xd6b570, nativeWidget=0x2cb31b0, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#22 QApplicationPrivate::sendMouseEvent (receiver=0xd6b570, event=0x7fff8cb90690, alienWidget=0xd6b570, nativeWidget=0x2cb31b0, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>) at kernel/qapplication.cpp:2924
#23 0x00007fa899d94a0e in QETWidget::translateMouseEvent (this=0x2cb31b0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4409
#24 0x00007fa899d93aa9 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff8cb921c0) at kernel/qapplication_x11.cpp:3550
#25 0x00007fa899dbcd0c in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#26 0x00007fa898c58bbe in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#27 0x00007fa898c5c588 in ?? () from /lib/libglib-2.0.so.0
#28 0x00007fa898c5c6b0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#29 0x00007fa89bda01a6 in QEventDispatcherGlib::processEvents (this=0xc94040, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#30 0x00007fa899dbc4be in QGuiEventDispatcherGlib::processEvents (this=0x7fa870000020, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#31 0x00007fa89bd76532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#32 0x00007fa89bd76904 in QEventLoop::exec (this=0x7fff8cb924f0, flags=) at kernel/qeventloop.cpp:201
#33 0x00007fa89bd78ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#34 0x00007fa8914e74cf in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/shells/desktop/main.cpp:50
#35 0x0000000000406da8 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a299 "0") at ../../kinit/kinit.cpp:677
#36 0x0000000000407aa0 in handle_launcher_request (sock=7, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#37 0x0000000000407f51 in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#38 0x0000000000408bb2 in main (argc=2, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1793
The current source language is "auto; currently c".

This bug may be a duplicate of or related to bug 208550

Reported using DrKonqi