Application: k3b (2.0.2)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-23-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
i try to make a audio CD from mp3 files
no other application was started at the crash moment

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 0x7f19fffb77c0 (LWP 3285))]

Thread 4 (Thread 0x7f19e552e700 (LWP 3286)):
#0  0x00007f19f576e05a in pthread_mutex_unlock () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f19f5a035d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f19f59c783b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f19f59c7f5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f19f59c8164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f19fb0ac426 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f19fb07bc82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f19fb07bed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f19faf7afa7 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f19fb05b9ff in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007f19faf7dfcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#11 0x00007f19f576ae9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007f19f99ebcbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#13 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f19d978d700 (LWP 3343)):
#0  0x00007f19f576f0fe in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f19faf7cc98 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007f19faf7d3f6 in QThread::sleep(unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00007f19ff88f05a in K3b::MediaCache::PollThread::run (this=0x16d62c0) at /build/buildd/k3b-2.0.2/libk3b/tools/k3bmediacache.cpp:106
#4  0x00007f19faf7dfcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007f19f576ae9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f19f99ebcbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f19cb5c5700 (LWP 3383)):
#0  0x00007f19f99e0303 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f19f59c8036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f19f59c8164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f19fb0ac426 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007f19fb07bc82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007f19fb07bed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f19faf7afa7 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f19fb05b9ff in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f19faf7dfcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f19f576ae9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f19f99ebcbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f19fffb77c0 (LWP 3285)):
[KCrash Handler]
#6  0x00000000fff3f0f0 in ?? ()
#7  0x00007f19df29be74 in av_free_packet () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#8  0x00007f19e44e1cfe in K3bFFMpegFile::close (this=0x205d7a0) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:166
#9  0x00007f19e44e1d63 in K3bFFMpegFile::open (this=0x205d7a0) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:92
#10 0x00007f19e44e2989 in K3bFFMpegWrapper::open (this=<optimized out>, filename=...) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:440
#11 0x00007f19e44e13f2 in K3bFFMpegDecoderFactory::canDecode (this=<optimized out>, url=...) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegdecoder.cpp:60
#12 0x00007f19ff8a00b0 in K3b::AudioDecoderFactory::createDecoder (url=...) at /build/buildd/k3b-2.0.2/libk3b/plugin/k3baudiodecoder.cpp:584
#13 0x00007f19ff8ec880 in K3b::AudioDoc::getDecoderForUrl (this=0x1b303a0, url=..., reused=0x7fffb3b2702f) at /build/buildd/k3b-2.0.2/libk3b/projects/audiocd/k3baudiodoc.cpp:454
#14 0x00000000004c50a7 in K3b::AudioTrackAddingDialog::slotAddUrls (this=0x2058aa0) at /build/buildd/k3b-2.0.2/src/projects/k3baudiotrackaddingdialog.cpp:173
#15 0x00007f19fb096446 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#16 0x00007f19fa1d2b7b in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#17 0x00007f19fa182894 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#18 0x00007f19fa187713 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#19 0x00007f19fbae23f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#20 0x00007f19fb07ce9c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#21 0x00007f19fb080c6a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#22 0x00007f19fb0abf93 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#23 0x00007f19f59c7d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f19f59c80a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f19f59c8164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f19fb0ac3bf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#27 0x00007f19fa22ad5e in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#28 0x00007f19fb07bc82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#29 0x00007f19fb07bed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#30 0x00007f19fa652936 in QDialog::exec() () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#31 0x00007f19fa6530ca in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#32 0x00007f19fb096446 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#33 0x00007f19fa1d2b7b in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#34 0x00007f19fa182894 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#35 0x00007f19fa187713 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#36 0x00007f19fbae23f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#37 0x00007f19fb07ce9c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#38 0x00007f19fb080c6a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#39 0x00007f19fb0abf93 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#40 0x00007f19f59c7d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007f19f59c80a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007f19f59c8164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f19fb0ac3bf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#44 0x00007f19fa22ad5e in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#45 0x00007f19fb07bc82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#46 0x00007f19fb07bed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#47 0x00007f19fb080f67 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#48 0x00000000004434d6 in main (argc=1, argv=0x7fffb3b29438) at /build/buildd/k3b-2.0.2/src/main.cpp:165

Possible duplicates by query: bug 312703, bug 312317, bug 311998, bug 311849, bug 311161.

Reported using DrKonqi