Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.3
Operating System: Linux 2.6.30-17 i686
Distribution: Debian GNU/Linux testing (squeeze)

What I was doing when the application crashed:
When I want to change the background image of my desktop, I can easily crash Plasma with clicking on the "browse" button. Works everytime...

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb5fc9700 (LWP 9079))]

Thread 3 (Thread 0xb26d9b70 (LWP 9085)):
#0  0xb7fe9424 in __kernel_vsyscall ()
#1  0xb67120a5 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:122
#2  0xb68d682d in __pthread_cond_wait (cond=0x8956fd0, mutex=0x8956fb8) at forward.c:139
#3  0xb7de65c2 in QWaitConditionPrivate::wait (this=0x8928e60, mutex=0x8928e5c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x8928e60, mutex=0x8928e5c, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0xb6625a9a in QHostInfoAgent::run (this=0x8928e50) at kernel/qhostinfo.cpp:260
#6  0xb7de55e2 in QThreadPrivate::start (arg=0x8928e50) at thread/qthread_unix.cpp:188
#7  0xb670e585 in start_thread (arg=0xb26d9b70) at pthread_create.c:300
#8  0xb68c92be in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xb14b1b70 (LWP 9086)):
#0  0xb7fe9424 in __kernel_vsyscall ()
#1  0xb68c25b1 in select () from /lib/i686/cmov/libc.so.6
#2  0xb7eb3866 in qt_native_select (fdread=0xb14af214, fdwrite=0xb14af194, timeout=-1) at io/qprocess_unix.cpp:936
#3  0xb7eb57e3 in QProcessPrivate::waitForFinished (this=0x85d0548, msecs=-1) at io/qprocess_unix.cpp:1158
#4  0xb7e746ce in QProcess::waitForFinished (this=0xb14af300, msecs=-1) at io/qprocess.cpp:1318
#5  0xb7e78e21 in QProcess::execute (program=..., arguments=...) at io/qprocess.cpp:1701
#6  0xb7c5308e in KToolInvocation::startKdeinit () at ../../kdecore/kernel/ktoolinvocation.cpp:382
#7  0xb7c54706 in KToolInvocation::klauncher () at ../../kdecore/kernel/ktoolinvocation.cpp:63
#8  0xb78fb9d5 in KIO::Slave::createSlave (protocol=..., url=..., error=@0xb14af578, error_text=...) at ../../kio/kio/slave.cpp:399
#9  0xb78f4d79 in KIO::SchedulerPrivate::createSlave (this=0x8d32868, protInfo=0x9671230, job=0x8d60c78, url=...) at ../../kio/kio/scheduler.cpp:709
#10 0xb78f6297 in KIO::SchedulerPrivate::startJobDirect (this=0x8d32868) at ../../kio/kio/scheduler.cpp:612
#11 0xb78f62e0 in KIO::SchedulerPrivate::startStep (this=0x8d32868) at ../../kio/kio/scheduler.cpp:452
#12 0xb78f6546 in KIO::Scheduler::qt_metacall (this=0x8d24a38, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xb14af6d8) at ./scheduler.moc:102
#13 0xb7eeb303 in QMetaObject::activate (sender=0x8d3286c, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3112
#14 0xb7eebf42 in QMetaObject::activate (sender=0x8d3286c, m=0xb7fc7d84, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3186
#15 0xb7f26b37 in QTimer::timeout (this=0x8d3286c) at .moc/release-shared/moc_qtimer.cpp:128
#16 0xb7ef165e in QTimer::timerEvent (this=0x8d3286c, e=0xb14afb5c) at kernel/qtimer.cpp:261
#17 0xb7ee639f in QObject::event (this=0x8d3286c, e=0xb14afb5c) at kernel/qobject.cpp:1074
#18 0xb6b75a94 in QApplicationPrivate::notify_helper (this=0x856f690, receiver=0x8d3286c, e=0xb14afb5c) at kernel/qapplication.cpp:4065
#19 0xb6b7dbee in QApplication::notify (this=0x85698a0, receiver=0x8d3286c, e=0xb14afb5c) at kernel/qapplication.cpp:3605
#20 0xb75bf62d in KApplication::notify (this=0x85698a0, receiver=0x8d3286c, event=0xb14afb5c) at ../../kdeui/kernel/kapplication.cpp:302
#21 0xb7ed61eb in QCoreApplication::notifyInternal (this=0x85698a0, receiver=0x8d3286c, event=0xb14afb5c) at kernel/qcoreapplication.cpp:610
#22 0xb7f04e21 in QCoreApplication::sendEvent (this=0x8a2148c) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#23 QTimerInfoList::activateTimers (this=0x8a2148c) at kernel/qeventdispatcher_unix.cpp:580
#24 0xb7f01317 in timerSourceDispatch (source=0x893e5d0) at kernel/qeventdispatcher_glib.cpp:184
#25 idleTimerSourceDispatch (source=0x893e5d0) at kernel/qeventdispatcher_glib.cpp:231
#26 0xb675bf28 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#27 0xb675f6b3 in ?? () from /lib/libglib-2.0.so.0
#28 0xb675f838 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#29 0xb7f01041 in QEventDispatcherGlib::processEvents (this=0x8d1c268, flags=...) at kernel/qeventdispatcher_glib.cpp:407
#30 0xb7ed483a in QEventLoop::processEvents (this=0xb14afd54, flags=...) at kernel/qeventloop.cpp:149
#31 0xb7ed4c82 in QEventLoop::exec (this=0xb14afd54, flags=...) at kernel/qeventloop.cpp:201
#32 0xb78de48b in KIO::NetAccess::enter_loop (this=0xb14afdc0) at ../../kio/kio/netaccess.cpp:502
#33 0xb78deb4f in KIO::NetAccess::synchronousRunInternal (this=0xb14afdc0, job=0x8d4bfb0, window=0x0, data=0xb14afe44, finalURL=0x0, metaData=0x0) at ../../kio/kio/netaccess.cpp:487
#34 0xb78df1d1 in KIO::NetAccess::synchronousRun (job=0x8d4bfb0, window=0x0, data=0xb14afe44, finalURL=0x0, metaData=0x0) at ../../kio/kio/netaccess.cpp:277
#35 0xb2f4fc0f in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#36 0xb2f5bf3c in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#37 0xb2f5cf00 in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#38 0xb7de55e2 in QThreadPrivate::start (arg=0x8d4bfb0) at thread/qthread_unix.cpp:188
#39 0xb670e585 in start_thread (arg=0xb14b1b70) at pthread_create.c:300
#40 0xb68c92be in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb5fc9700 (LWP 9079)):
[KCrash Handler]
#6  0xb4a6d6ab in KFileWidget (this=0x924f508, _startDir=..., parent=0x8f8a468) at ../../kfile/kfilewidget.cpp:598
#7  0xae7bb3fb in KFileModule::createFileWidget (this=0x9678f60, startDir=..., parent=0x8f8a468) at ../../kfile/kfilemodule.cpp:36
#8  0xb79541df in KFileDialog (this=0x8f8a468, startDir=..., filter=..., parent=0x94ef0e0, customWidget=0x0) at ../../kio/kfile/kfiledialog.cpp:238
#9  0xb2fadd55 in Image::showFileDialog (this=0x94edcc8) at ../../../../plasma/wallpapers/image/image.cpp:472
#10 0xb2faefab in Image::qt_metacall (this=0x94edcc8, _c=QMetaObject::InvokeMetaMethod, _id=23, _a=0xbfd3ca4c) at ./image.moc:106
#11 0xb7eeb303 in QMetaObject::activate (sender=0x9364da0, from_signal_index=29, to_signal_index=30, argv=0xbfd3ca4c) at kernel/qobject.cpp:3112
#12 0xb7eeb720 in QMetaObject::activate (sender=0x9364da0, m=0xb73df424, from_local_signal_index=2, to_local_signal_index=3, argv=0xbfd3ca4c) at kernel/qobject.cpp:3206
#13 0xb71f6b21 in QAbstractButton::clicked (this=0x9364da0, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:200
#14 0xb6f22959 in QAbstractButtonPrivate::emitClicked (this=0x9505f18) at widgets/qabstractbutton.cpp:543
#15 0xb6f24584 in QAbstractButtonPrivate::click (this=0x9505f18) at widgets/qabstractbutton.cpp:536
#16 0xb6f24816 in QAbstractButton::mouseReleaseEvent (this=0x9364da0, e=0xbfd3d10c) at widgets/qabstractbutton.cpp:1115
#17 0xb700950c in QToolButton::mouseReleaseEvent (this=0x9364da0, e=0xbfd3d10c) at widgets/qtoolbutton.cpp:709
#18 0xb6bcb9fb in QWidget::event (this=0x9364da0, event=0xbfd3d10c) at kernel/qwidget.cpp:7554
#19 0xb6f227fe in QAbstractButton::event (this=0x9364da0, e=0xbfd3d10c) at widgets/qabstractbutton.cpp:1077
#20 0xb700beba in QToolButton::event (this=0x9364da0, event=0xbfd3d10c) at widgets/qtoolbutton.cpp:1151
#21 0xb6b75a94 in QApplicationPrivate::notify_helper (this=0x856f690, receiver=0x9364da0, e=0xbfd3d10c) at kernel/qapplication.cpp:4065
#22 0xb6b7e551 in QApplication::notify (this=0x85698a0, receiver=0x9364da0, e=0xbfd3d10c) at kernel/qapplication.cpp:3767
#23 0xb75bf62d in KApplication::notify (this=0x85698a0, receiver=0x9364da0, event=0xbfd3d10c) at ../../kdeui/kernel/kapplication.cpp:302
#24 0xb7ed61eb in QCoreApplication::notifyInternal (this=0x85698a0, receiver=0x9364da0, event=0xbfd3d10c) at kernel/qcoreapplication.cpp:610
#25 0xb6b7d5de in QCoreApplication::sendSpontaneousEvent (receiver=0x9364da0, event=0xbfd3d10c, alienWidget=0x9364da0, nativeWidget=0x91e8570, buttonDown=0xb73ec580, lastMouseReceiver=...)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#26 QApplicationPrivate::sendMouseEvent (receiver=0x9364da0, event=0xbfd3d10c, alienWidget=0x9364da0, nativeWidget=0x91e8570, buttonDown=0xb73ec580, lastMouseReceiver=...)
    at kernel/qapplication.cpp:2924
#27 0xb6bec175 in QETWidget::translateMouseEvent (this=0x91e8570, event=0xbfd3e6bc) at kernel/qapplication_x11.cpp:4411
#28 0xb6beb646 in QApplication::x11ProcessEvent (this=0x85698a0, event=0xbfd3e6bc) at kernel/qapplication_x11.cpp:3430
#29 0xb6c15bc2 in x11EventSourceDispatch (s=0x85722b0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#30 0xb675bf28 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#31 0xb675f6b3 in ?? () from /lib/libglib-2.0.so.0
#32 0xb675f838 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#33 0xb7f01041 in QEventDispatcherGlib::processEvents (this=0x856f2c8, flags=...) at kernel/qeventdispatcher_glib.cpp:407
#34 0xb6c15305 in QGuiEventDispatcherGlib::processEvents (this=0x856f2c8, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#35 0xb7ed483a in QEventLoop::processEvents (this=0xbfd3e920, flags=...) at kernel/qeventloop.cpp:149
#36 0xb7ed4c82 in QEventLoop::exec (this=0xbfd3e920, flags=...) at kernel/qeventloop.cpp:201
#37 0xb7ed70d9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#38 0xb6b75917 in QApplication::exec () at kernel/qapplication.cpp:3525
#39 0xb4ad75cd in kdemain (argc=1, argv=0x854f7b8) at ../../../../plasma/shells/desktop/main.cpp:50
#40 0x0804e291 in launch (argc=1, _name=0x8549d64 "/usr/bin/plasma-desktop", args=0x8549d7c "", cwd=0x0, envc=0, envs=0x8549d80 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x805105f "0") at ../../kinit/kinit.cpp:677
#41 0x0804ea15 in handle_launcher_request (sock=7, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#42 0x0804ee5b in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#43 0x0804f689 in main (argc=2, argv=0xbfd3f194, envp=0xbfd3f1a0) at ../../kinit/kinit.cpp:1793

Reported using DrKonqi