Application that crashed: kscd
Version of the application: 1.5
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-19-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Kscd was open, and had played a CD.
My wireless went down, so I did my usual 
ifdown, 
ifup
to bring the network back up.

Kscd crashed on ifdown.

 -- Backtrace:
Application: KsCD (kscd), signal: Segmentation fault
[Current thread is 1 (Thread 0xb784f700 (LWP 2817))]

Thread 6 (Thread 0x3c47b70 (LWP 2820)):
#0  0x005fb422 in __kernel_vsyscall ()
#1  0x002c3142 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:179
#2  0x08ca38d4 in __pthread_cond_timedwait (cond=0x9c41e70, mutex=0x9c41e58, abstime=0x3c4733c) at forward.c:152
#3  0x07a4707f in metronom_sync_loop (this=0x9c41e10) at metronom.c:870
#4  0x002be80e in start_thread (arg=0x3c47b70) at pthread_create.c:300
#5  0x08c968de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 5 (Thread 0xb5fd4b70 (LWP 2821)):
#0  0x00807e06 in *__GI_clock_gettime (clock_id=8437748, tp=0xb5fd3ff8) at ../sysdeps/unix/clock_gettime.c:100
#1  0x00d0dbf3 in QTimerInfoList::getTime (this=0x9bd4674, t=...) at kernel/qeventdispatcher_unix.cpp:339
#2  0x00d0dde1 in QTimerInfoList::updateCurrentTime (this=0x9bd4674) at kernel/qeventdispatcher_unix.cpp:297
#3  0x00d0e88c in QTimerInfoList::timerWait (this=0x9bd4674, tm=...) at kernel/qeventdispatcher_unix.cpp:420
#4  0x00d0c210 in timerSourcePrepare (source=0x9bd4640, timeout=0xb5fd40ec) at kernel/qeventdispatcher_glib.cpp:141
#5  0x020f8f90 in IA__g_main_context_prepare (context=0x90fb6b8, priority=0xb5fd416c) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2280
#6  0x020f9351 in g_main_context_iterate (context=0x90fb6b8, block=<value optimized out>, dispatch=1, self=0x9105438) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2571
#7  0x020f9863 in IA__g_main_context_iteration (context=0x90fb6b8, may_block=1) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2654
#8  0x00d0c067 in QEventDispatcherGlib::processEvents (this=0x90ebd28, flags=...) at kernel/qeventdispatcher_glib.cpp:329
#9  0x00cdfc79 in QEventLoop::processEvents (this=0xb5fd42b4, flags=) at kernel/qeventloop.cpp:149
#10 0x00ce00ca in QEventLoop::exec (this=0xb5fd42b4, flags=...) at kernel/qeventloop.cpp:201
#11 0x00bedb73 in QThread::exec (this=0x90e44c8) at thread/qthread.cpp:487
#12 0x0722120a in Phonon::Xine::XineThread::run (this=0x90e44c8) at ../../xine/xinethread.cpp:143
#13 0x00bf0e32 in QThreadPrivate::start (arg=0x90e44c8) at thread/qthread_unix.cpp:188
#14 0x002be80e in start_thread (arg=0xb5fd4b70) at pthread_create.c:300
#15 0x08c968de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 4 (Thread 0xb4dffb70 (LWP 2824)):
#0  0x005fb422 in __kernel_vsyscall ()
#1  0x002c2e15 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:122
#2  0x08ca387d in __pthread_cond_wait (cond=0xb4e1e9e0, mutex=0xb4e1e9c8) at forward.c:139
#3  0x07a59243 in fifo_peek_int (this_gen=0xb4e008c8) at audio_out.c:346
#4  fifo_peek (this_gen=0xb4e008c8) at audio_out.c:386
#5  ao_loop (this_gen=0xb4e008c8) at audio_out.c:1013
#6  0x002be80e in start_thread (arg=0xb4dffb70) at pthread_create.c:300
#7  0x08c968de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xb39ffb70 (LWP 2825)):
#0  0x005fb422 in __kernel_vsyscall ()
#1  0x08c8fa71 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0x07a72420 in xine_usec_sleep (usec=0) at utils.c:482
#3  0x07a557ad in video_out_loop (this_gen=0xb4effc08) at video_out.c:1246
#4  0x002be80e in start_thread (arg=0xb39ffb70) at pthread_create.c:300
#5  0x08c968de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xb57d3b70 (LWP 4063)):
#0  0x005fb422 in __kernel_vsyscall ()
#1  0x002c2e15 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:122
#2  0x08ca387d in __pthread_cond_wait (cond=0x9d9e708, mutex=0x9d9e6f0) at forward.c:139
#3  0x07a59243 in fifo_peek_int (this_gen=0x9f195b0) at audio_out.c:346
#4  fifo_peek (this_gen=0x9f195b0) at audio_out.c:386
#5  ao_loop (this_gen=0x9f195b0) at audio_out.c:1013
#6  0x002be80e in start_thread (arg=0xb57d3b70) at pthread_create.c:300
#7  0x08c968de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb784f700 (LWP 2817)):
[KCrash Handler]
#6  0x01ca8750 in cdda_open (this_gen=0x9c0c748, num_files=0xbffd666c) at input_cdda.c:2026
#7  cdda_class_get_autoplay_list (this_gen=0x9c0c748, num_files=0xbffd666c) at input_cdda.c:2683
#8  0x07a4bf8b in xine_get_autoplay_mrls (this=0x9bf80d0, plugin_id=0x7264d4c "CD", num_mrls=0xbffd666c) at load_plugins.c:1881
#9  0x0723c26f in Phonon::Xine::MediaObject::autoplayMrlsToTitles (this=0x90e0a28, plugin=0x7264d4c "CD", defaultMrl=0x7263284 "cdda:/") at ../../xine/mediaobject.cpp:441
#10 0x0723cca1 in Phonon::Xine::MediaObject::setSourceInternal (this=0x90e0a28, source=..., how=Phonon::Xine::MediaObject::HardSwitch) at ../../xine/mediaobject.cpp:392
#11 0x0723d250 in Phonon::Xine::MediaObject::setSource (this=0x90e0a28, source=...) at ../../xine/mediaobject.cpp:317
#12 0x0012b175 in Phonon::MediaObject::setCurrentSource (this=0x9bd3fc8, newSource=...) at ../3rdparty/phonon/phonon/mediaobject.cpp:260
#13 0x0805c0b0 in _start ()

Reported using DrKonqi