Application: k3b (2.0.2)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-38-generic x86_64
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
-Added 3 .m4a files to audio CD project containing 5 MP3 files

The crash can be reproduced every time.

-- Backtrace:
Application: K3b (k3b), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f45a0d5b7c0 (LWP 32345))]

Thread 5 (Thread 0x7f4584d42700 (LWP 32346)):
#0  0x00007f45967621eb in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4596762f04 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f459676349a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4584d4798b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#4  0x00007f45967849e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4596505e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f459a786cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f457ffff700 (LWP 32347)):
#0  0x00007f459a794a0f in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f459a7798b2 in read () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007f459679d8cf in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4596762ba4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4596762fd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f459676349a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f458a8cc406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007f45967849e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f4596505e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f459a786cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f45755be700 (LWP 32350)):
#0  0x00007f459679e320 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f459679e5c9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f459676302a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4596763164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f459be47426 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007f459be16c82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f459be16ed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f459bd15fa7 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f459bdf69ff in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f459bd18fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007f4596505e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f459a786cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f457efc5700 (LWP 4201)):
#0  0x00007f459650a0fe in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f459bd17c98 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007f459bd183f6 in QThread::sleep(unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00007f45a062a05a in K3b::MediaCache::PollThread::run (this=0x2a11d40) at /build/buildd/k3b-2.0.2/libk3b/tools/k3bmediacache.cpp:106
#4  0x00007f459bd18fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007f4596505e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f459a786cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f45a0d5b7c0 (LWP 32345)):
[KCrash Handler]
#6  0xffffffffffffffff in ?? ()
#7  0x00007f456a44a374 in skip_bits_long (n=-16, s=<optimized out>) at /build/buildd/libav-0.8.6/libavcodec/get_bits.h:201
#8  ff_bgmc_decode_end (gb=0x3e022e0) at /build/buildd/libav-0.8.6/libavcodec/bgmc.c:510
#9  0x0000000003fc4920 in ?? ()
#10 0x00007f456b1aacfe in K3bFFMpegFile::close (this=0x3e022e0) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:166
#11 0x00007f456b1aad63 in K3bFFMpegFile::open (this=0x3fc4920) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:92
#12 0x00007f456b1ab989 in K3bFFMpegWrapper::open (this=<optimized out>, filename=...) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:440
#13 0x00007f456b1aa3f2 in K3bFFMpegDecoderFactory::canDecode (this=<optimized out>, url=...) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegdecoder.cpp:60
#14 0x00007f45a063b0b0 in K3b::AudioDecoderFactory::createDecoder (url=...) at /build/buildd/k3b-2.0.2/libk3b/plugin/k3baudiodecoder.cpp:584
#15 0x00007f45a0687880 in K3b::AudioDoc::getDecoderForUrl (this=0x273f110, url=..., reused=0x7fff7d1753ff) at /build/buildd/k3b-2.0.2/libk3b/projects/audiocd/k3baudiodoc.cpp:454
#16 0x00000000004c50a7 in K3b::AudioTrackAddingDialog::slotAddUrls (this=0x44ac3c0) at /build/buildd/k3b-2.0.2/src/projects/k3baudiotrackaddingdialog.cpp:173
#17 0x00007f459be31446 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#18 0x00007f459af6db7b in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#19 0x00007f459af1d894 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#20 0x00007f459af22713 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#21 0x00007f459c87d3f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#22 0x00007f459be17e9c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#23 0x00007f459be1bc6a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#24 0x00007f459be46f93 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#25 0x00007f4596762d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f45967630a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f4596763164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f459be473bf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#29 0x00007f459afc5d5e in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#30 0x00007f459be16c82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#31 0x00007f459be16ed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#32 0x00007f459b3ed936 in QDialog::exec() () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#33 0x00007f459b3ee0ca in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#34 0x00007f459be31446 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#35 0x00007f459af6db7b in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#36 0x00007f459af1d894 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#37 0x00007f459af22713 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#38 0x00007f459c87d3f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#39 0x00007f459be17e9c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#40 0x00007f459be1bc6a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#41 0x00007f459be46f93 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#42 0x00007f4596762d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f45967630a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f4596763164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f459be473bf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#46 0x00007f459afc5d5e in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#47 0x00007f459be16c82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#48 0x00007f459be16ed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#49 0x00007f459be1bf67 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#50 0x00000000004434d6 in main (argc=1, argv=0x7fff7d177808) at /build/buildd/k3b-2.0.2/src/main.cpp:165

Reported using DrKonqi