Application that crashed: k3b
Version of the application: 1.68.0
KDE Version: 4.3.5 (KDE 4.3.5)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-21-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
wav files were recoreded from events using Ardour2, edited using Audacity, normalized with normalize-audio and written to cd with K3b.

I've been doing this for quite some time (years) with various versions of OS and software.

Though there are software updates to the system that may have introduced an issue, I also just started using Philips brand CDs (CD-R, 700MB, 80min, 52x).

This has happened with 3 of the 4 CDs I've tried to write (75% failure).

 -- Backtrace:
Application: K3b (k3b), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fb8cd2fb750 (LWP 9119))]

Thread 2 (Thread 0x7fb8b7929910 (LWP 9240)):
[KCrash Handler]
#5  QBasicAtomicInt::ref (this=0x2d71388, other=...) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h:121
#6  QString::operator= (this=0x2d71388, other=...) at tools/qstring.cpp:1131
#7  0x00007fb8c737658c in QFile::setFileName (this=0x7fb8b79232b0, name=...) at io/qfile.cpp:460
#8  0x00007fb8ccb94b7c in K3b::WaveFileWriter::open(QString const&) () from /usr/lib/libk3b.so.6
#9  0x00007fb8ccc31c27 in ?? () from /usr/lib/libk3b.so.6
#10 0x00007fb8ccb91a65 in ?? () from /usr/lib/libk3b.so.6
#11 0x00007fb8c72f9445 in QThreadPrivate::start (arg=0x3124e30) at thread/qthread_unix.cpp:188
#12 0x00007fb8c42c4a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#13 0x00007fb8c5cac80d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb8cd2fb750 (LWP 9119)):
#0  0x00007fb8c5ca03c3 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb8c3ea629a in ?? () from /usr/lib/libxcb.so.1
#2  0x00007fb8c3ea67d7 in ?? () from /usr/lib/libxcb.so.1
#3  0x00007fb8c3ea6a85 in xcb_writev () from /usr/lib/libxcb.so.1
#4  0x00007fb8c9b57d4a in _XSend (dpy=0x26745f0, data=0x0, size=<value optimized out>) at ../../src/xcb_io.c:332
#5  0x00007fb8c9b57e89 in _XReply (dpy=0x7ffff2af3190, rep=0x7ffff2af3340, extra=0, discard=1) at ../../src/xcb_io.c:450
#6  0x00007fb8c9b35983 in XGetSelectionOwner (dpy=0x26745f0, selection=<value optimized out>) at ../../src/GetSOwner.c:43
#7  0x00007fb8c68fa59b in QClipboardWatcher::empty (this=<value optimized out>) at kernel/qclipboard_x11.cpp:1158
#8  0x00007fb8c68fe5f8 in QClipboardWatcher::retrieveData_sys (this=0x1, fmt=..., requestedType=3318350787) at kernel/qclipboard_x11.cpp:1211
#9  0x00007fb8c689c7ba in QInternalMimeData::retrieveData (this=0x1, mimeType=..., type=3318350787) at kernel/qdnd.cpp:574
#10 0x00007fb8c73ebd9f in QMimeDataPrivate::retrieveTypedData (this=<value optimized out>, format=..., type=3318350787) at kernel/qmimedata.cpp:107
#11 0x00007fb8c73ec582 in QMimeData::data (this=<value optimized out>, mimeType=...) at kernel/qmimedata.cpp:524
#12 0x00007fb8cc69ccad in KFilePreviewGenerator::Private::decodeIsCutSelection(QMimeData const*) () from /usr/lib/libkfile.so.4
#13 0x00007fb8cc69da74 in KFilePreviewGenerator::Private::applyCutItemEffect(KFileItemList const&) () from /usr/lib/libkfile.so.4
#14 0x00007fb8cc69f824 in KFilePreviewGenerator::Private::updateIcons(KFileItemList const&) () from /usr/lib/libkfile.so.4
#15 0x00007fb8cc6a065c in KFilePreviewGenerator::Private::requestSequenceIcon(QModelIndex const&, int) () from /usr/lib/libkfile.so.4
#16 0x00007fb8cc6a0ca9 in KFilePreviewGenerator::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkfile.so.4
#17 0x00007fb8c73f4ddc in QMetaObject::activate (sender=0x2851550, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x7fb8c5ca03c3) at kernel/qobject.cpp:3113
#18 0x00007fb8cc2827d6 in KDirModel::needSequenceIcon(QModelIndex const&, int) () from /usr/lib/libkio.so.5
#19 0x00007fb8cc22c761 in ?? () from /usr/lib/libkio.so.5
#20 0x00007fb8cc22d061 in ?? () from /usr/lib/libkio.so.5
#21 0x00007fb8c73f4ddc in QMetaObject::activate (sender=0x2b2a368, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x7fb8c5ca03c3) at kernel/qobject.cpp:3113
#22 0x00007fb8c73eed83 in QObject::event (this=0x2b2a368, e=0x1) at kernel/qobject.cpp:1075
#23 0x00007fb8c6887efc in QApplicationPrivate::notify_helper (this=0x26666b0, receiver=0x2b2a368, e=0x7ffff2af43c0) at kernel/qapplication.cpp:4056
#24 0x00007fb8c688f1ce in QApplication::notify (this=0x7ffff2af9f60, receiver=0x2b2a368, e=0x7ffff2af43c0) at kernel/qapplication.cpp:4021
#25 0x00007fb8c824ff46 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#26 0x00007fb8c73dfc2c in QCoreApplication::notifyInternal (this=0x7ffff2af9f60, receiver=0x2b2a368, event=0x7ffff2af43c0) at kernel/qcoreapplication.cpp:610
#27 0x00007fb8c740a862 in QCoreApplication::sendEvent (this=0x266efa0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#28 QTimerInfoList::activateTimers (this=0x266efa0) at kernel/qeventdispatcher_unix.cpp:572
#29 0x00007fb8c740825d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#30 0x00007fb8c249dbce in g_main_dispatch (context=0x266e120) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:1960
#31 IA__g_main_context_dispatch (context=0x266e120) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2513
#32 0x00007fb8c24a1598 in g_main_context_iterate (context=0x266e120, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2591
#33 0x00007fb8c24a16c0 in IA__g_main_context_iteration (context=0x266e120, may_block=1) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2654
#34 0x00007fb8c74081a6 in QEventDispatcherGlib::processEvents (this=0x2679670, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#35 0x00007fb8c691c4be in QGuiEventDispatcherGlib::processEvents (this=0x7ffff2af3190, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#36 0x00007fb8c73de532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#37 0x00007fb8c73de904 in QEventLoop::exec (this=0x7ffff2af4660, flags=) at kernel/qeventloop.cpp:201
#38 0x00007fb8c6d029de in QDialog::exec (this=0x30f55e0) at dialogs/qdialog.cpp:498
#39 0x00000000005438f8 in _start ()

Reported using DrKonqi