Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.90 (KDE 4.2.90 (KDE 4.3 Beta2))
Qt Version: 4.5.1
Operating System: Linux 2.6.28-13-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
When attempting to browse for a wallpaper in Desktop Settings, window becomes unresponsive. Attempting a force-quit crashes Plasma.

 -- Backtrace:
Application: Plasma Workspace (kdeinit), signal: Segmentation fault
[Current thread is 0 (LWP 5402)]

Thread 3 (Thread 0xa8e11b90 (LWP 5406)):
#0  0xb8003430 in __kernel_vsyscall ()
#1  0xb64f20e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb66d22ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7dfa5b2 in QWaitCondition::wait (this=0x8efd4e0, mutex=0x8efd4dc, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb773eae2 in QHostInfoAgent::run (this=0x8efd4d0) at kernel/qhostinfo.cpp:260
#5  0xb7df956e in QThreadPrivate::start (arg=0x8efd4d0) at thread/qthread_unix.cpp:189
#6  0xb64ee4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb66c349e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xa7d32b90 (LWP 5435)):
#0  0xb7f1b004 in QTimerInfoList::updateCurrentTime (this=0xb17437c) at kernel/qeventdispatcher_unix.cpp:298
#1  0xb7f192f3 in timerSourceCheck (source=0xb174348) at kernel/qeventdispatcher_glib.cpp:156
#2  0xb653e6f6 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0xb653efdd in ?? () from /usr/lib/libglib-2.0.so.0
#4  0xb653f268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0xb7f191f7 in QEventDispatcherGlib::processEvents (this=0xb1716b8, flags={i = -1479340792}) at kernel/qeventdispatcher_glib.cpp:326
#6  0xb7eebdda in QEventLoop::processEvents (this=0xa7d30d84, flags={i = -1479340728}) at kernel/qeventloop.cpp:149
#7  0xb7eec21a in QEventLoop::exec (this=0xa7d30d84, flags={i = -1479340660}) at kernel/qeventloop.cpp:200
#8  0xb793892b in KIO::NetAccess::enter_loop (this=0xa7d30df0) at /build/buildd/kde4libs-4.2.90/kio/kio/netaccess.cpp:502
#9  0xb7938fef in KIO::NetAccess::synchronousRunInternal (this=0xa7d30df0, job=0xc000fe0, window=0x0, data=0xa7d30e74, finalURL=0x0, metaData=0x0)
    at /build/buildd/kde4libs-4.2.90/kio/kio/netaccess.cpp:487
#10 0xb79396a1 in KIO::NetAccess::synchronousRun (job=0xc000fe0, window=0x0, data=0xa7d30e74, finalURL=0x0, metaData=0x0) at /build/buildd/kde4libs-4.2.90/kio/kio/netaccess.cpp:277
#11 0xa9079c6f in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#12 0xa9086080 in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#13 0xa9086fa0 in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#14 0xb7df956e in QThreadPrivate::start (arg=0xc000fe0) at thread/qthread_unix.cpp:189
#15 0xb64ee4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#16 0xb66c349e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb5ffca10 (LWP 5402)):
[KCrash Handler]
#6  0xb5c93eed in KFileWidget (this=0xb7568e0, _startDir=@0xbfb1ec5c, parent=0xb629b10) at /build/buildd/kde4libs-4.2.90/kfile/kfilewidget.cpp:598
#7  0xa11c044b in KFileModule::createFileWidget (this=0xbff4208, startDir=@0xbfb1ec5c, parent=0xb629b10) at /build/buildd/kde4libs-4.2.90/kfile/kfilemodule.cpp:36
#8  0xb79aeaef in KFileDialog (this=0xb629b10, startDir=@0xbfb1ec5c, filter=@0xbfb1ec68, parent=0xbee2168, customWidget=0x0) at /build/buildd/kde4libs-4.2.90/kio/kfile/kfiledialog.cpp:238
#9  0xa940f09e in ?? () from /usr/lib/kde4/plasma_wallpaper_image.so
#10 0xa94128cb in ?? () from /usr/lib/kde4/plasma_wallpaper_image.so
#11 0xb7f03a58 in QMetaObject::activate (sender=0xbea86a0, from_signal_index=29, to_signal_index=30, argv=0xbfb1ed8c) at kernel/qobject.cpp:3120
#12 0xb7f03e90 in QMetaObject::activate (sender=0xbea86a0, m=0xb722d1e4, from_local_signal_index=2, to_local_signal_index=3, argv=0xbfb1ed8c) at kernel/qobject.cpp:3214
#13 0xb7044c81 in QAbstractButton::clicked (this=0xbea86a0, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:200
#14 0xb6d6d979 in QAbstractButtonPrivate::emitClicked (this=0xbea86c0) at widgets/qabstractbutton.cpp:543
#15 0xb6d6f5b4 in QAbstractButtonPrivate::click (this=0xbea86c0) at widgets/qabstractbutton.cpp:536
#16 0xb6d6f846 in QAbstractButton::mouseReleaseEvent (this=0xbea86a0, e=0xbfb1f388) at widgets/qabstractbutton.cpp:1115
#17 0xb6e5720c in QToolButton::mouseReleaseEvent (this=0xbea86a0, e=0xbfb1f388) at widgets/qtoolbutton.cpp:709
#18 0xb69df8c3 in QWidget::event (this=0xbea86a0, event=0xbfb1f388) at kernel/qwidget.cpp:7521
#19 0xb6d6d81e in QAbstractButton::event (this=0xbea86a0, e=0xbfb1f388) at widgets/qabstractbutton.cpp:1077
#20 0xb6e59c3a in QToolButton::event (this=0xbea86a0, event=0xbfb1f388) at widgets/qtoolbutton.cpp:1151
#21 0xb6988bcc in QApplicationPrivate::notify_helper (this=0x8817a68, receiver=0xbea86a0, e=0xbfb1f388) at kernel/qapplication.cpp:4057
#22 0xb6991851 in QApplication::notify (this=0x87f4538, receiver=0xbea86a0, e=0xbfb1f388) at kernel/qapplication.cpp:3759
#23 0xb74c1c4d in KApplication::notify (this=0x87f4538, receiver=0xbea86a0, event=0xbfb1f388) at /build/buildd/kde4libs-4.2.90/kdeui/kernel/kapplication.cpp:302
#24 0xb7eed7ab in QCoreApplication::notifyInternal (this=0x87f4538, receiver=0xbea86a0, event=0xbfb1f388) at kernel/qcoreapplication.cpp:610
#25 0xb69908be in QApplicationPrivate::sendMouseEvent (receiver=0xbea86a0, event=0xbfb1f388, alienWidget=0xbea86a0, nativeWidget=0x8a1a710, buttonDown=0xb7234aa0, lastMouseReceiver=@0xb7234aa4)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#26 0xb6a00aee in QETWidget::translateMouseEvent (this=0x8a1a710, event=0xbfb20a1c) at kernel/qapplication_x11.cpp:4448
#27 0xb69ffead in QApplication::x11ProcessEvent (this=0x87f4538, event=0xbfb20a1c) at kernel/qapplication_x11.cpp:3444
#28 0xb6a2b06a in x11EventSourceDispatch (s=0x881a7b0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#29 0xb653bb88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#30 0xb653f0eb in ?? () from /usr/lib/libglib-2.0.so.0
#31 0xb653f268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#32 0xb7f191d8 in QEventDispatcherGlib::processEvents (this=0x8815260, flags={i = -1078850600}) at kernel/qeventdispatcher_glib.cpp:324
#33 0xb6a2a765 in QGuiEventDispatcherGlib::processEvents (this=0x8815260, flags={i = -1078850552}) at kernel/qguieventdispatcher_glib.cpp:202
#34 0xb7eebdda in QEventLoop::processEvents (this=0xbfb20c80, flags={i = -1078850488}) at kernel/qeventloop.cpp:149
#35 0xb7eec21a in QEventLoop::exec (this=0xbfb20c80, flags={i = -1078850424}) at kernel/qeventloop.cpp:200
#36 0xb7eee6c9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#37 0xb6988a47 in QApplication::exec () at kernel/qapplication.cpp:3526
#38 0xb4b5f820 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#39 0x0804e1c0 in launch (argc=1, _name=0x87df69c "/usr/bin/plasma-desktop", args=0x87df6b4 "", cwd=0x0, envc=0, envs=0x87df6b8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80512d0 "0") at /build/buildd/kde4libs-4.2.90/kinit/kinit.cpp:671
#40 0x0804e99d in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.2.90/kinit/kinit.cpp:1163
#41 0x0804ef25 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.2.90/kinit/kinit.cpp:1356
#42 0x0804fb0a in main (argc=2, argv=0xbfb21474, envp=0xbfb21480) at /build/buildd/kde4libs-4.2.90/kinit/kinit.cpp:1783

This bug may be a duplicate of or related to bug 193176

Reported using DrKonqi