Application: k3b (2.0.2)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-29-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:

just adding .wav files to an audio project. Using the same sequence of files always crashed in the same place; changing the sequence caused it to crash at another point; the file causing the crash was not significant, that is in some particular sequence it may be the crash file, in others, not.

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 0x7ff4256787c0 (LWP 6204))]

Thread 7 (Thread 0x7ff409573700 (LWP 6205)):
#0  0x00007ff41f09ab03 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ff41b084036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff41b08449a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff40957898b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#4  0x00007ff41b0a59e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff41ae26e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007ff41f0a64bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7ff408d72700 (LWP 6206)):
#0  0x00007ff41f0990bd in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ff41b0be8cf in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff41b083ba4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff41b083fd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff41b08449a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff40f101406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007ff41b0a59e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007ff41ae26e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007ff41f0a64bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#9  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7ff3f4286700 (LWP 6208)):
#0  0x00007ff41ae28ec2 in pthread_mutex_lock () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ff41b0bf5a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff41b083851 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff41b083f5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff41b084164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff420766426 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007ff420735c82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007ff420735ed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007ff420634fa7 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007ff4207159ff in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007ff420637fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#11 0x00007ff41ae26e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007ff41f0a64bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#13 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7ff3e9f18700 (LWP 6209)):
#0  0x00007ff41f09f823 in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ff42071506f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007ff420637fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00007ff41ae26e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007ff41f0a64bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7ff3e3fff700 (LWP 6236)):
#0  0x00007ff41ae2b0fe in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ff420636c98 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007ff4206373f6 in QThread::sleep(unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00007ff424f4c05a in K3b::MediaCache::PollThread::run (this=0x1ccfaf0) at /build/buildd/k3b-2.0.2/libk3b/tools/k3bmediacache.cpp:106
#4  0x00007ff420637fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ff41ae26e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007ff41f0a64bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7ff3e37fe700 (LWP 6237)):
#0  0x00007ff41ae2b0fe in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007ff420636c98 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007ff4206373f6 in QThread::sleep(unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00007ff424f4c05a in K3b::MediaCache::PollThread::run (this=0x1b4b820) at /build/buildd/k3b-2.0.2/libk3b/tools/k3bmediacache.cpp:106
#4  0x00007ff420637fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007ff41ae26e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007ff41f0a64bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ff4256787c0 (LWP 6204)):
[KCrash Handler]
#6  0x00000000b6cc1313 in ?? ()
#7  0x00007ff3f10bdc94 in av_free_packet () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#8  0x00007ff3f1e23cfe in K3bFFMpegFile::close (this=0x2777840) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:166
#9  0x00007ff3f1e23d63 in K3bFFMpegFile::open (this=0x2777840) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:92
#10 0x00007ff3f1e24989 in K3bFFMpegWrapper::open (this=<optimized out>, filename=...) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:440
#11 0x00007ff3f1e233f2 in K3bFFMpegDecoderFactory::canDecode (this=<optimized out>, url=...) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegdecoder.cpp:60
#12 0x00007ff424f5d0b0 in K3b::AudioDecoderFactory::createDecoder (url=...) at /build/buildd/k3b-2.0.2/libk3b/plugin/k3baudiodecoder.cpp:584
#13 0x00007ff424fa9880 in K3b::AudioDoc::getDecoderForUrl (this=0x1acff00, url=..., reused=0x7fff3d0e93bf) at /build/buildd/k3b-2.0.2/libk3b/projects/audiocd/k3baudiodoc.cpp:454
#14 0x00000000004c50a7 in K3b::AudioTrackAddingDialog::slotAddUrls (this=0x27cfa00) at /build/buildd/k3b-2.0.2/src/projects/k3baudiotrackaddingdialog.cpp:173
#15 0x00007ff420750446 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#16 0x00007ff41f88cb7b in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#17 0x00007ff41f83c894 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#18 0x00007ff41f841713 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#19 0x00007ff42119d9e6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#20 0x00007ff420736e9c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#21 0x00007ff42073ac6a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#22 0x00007ff420765f93 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#23 0x00007ff41b083d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007ff41b0840a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007ff41b084164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007ff4207663bf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#27 0x00007ff41f8e4d5e in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#28 0x00007ff420735c82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#29 0x00007ff420735ed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#30 0x00007ff41fd0c936 in QDialog::exec() () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#31 0x00007ff41fd0d0ca in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#32 0x00007ff420750446 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#33 0x00007ff41f88cb7b in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#34 0x00007ff41f83c894 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#35 0x00007ff41f841713 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#36 0x00007ff42119d9e6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#37 0x00007ff420736e9c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#38 0x00007ff42073ac6a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#39 0x00007ff420765f93 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#40 0x00007ff41b083d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007ff41b0840a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007ff41b084164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007ff4207663bf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#44 0x00007ff41f8e4d5e in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#45 0x00007ff420735c82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#46 0x00007ff420735ed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#47 0x00007ff42073af67 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#48 0x00000000004434d6 in main (argc=1, argv=0x7fff3d0eb7c8) at /build/buildd/k3b-2.0.2/src/main.cpp:165

Possible duplicates by query: bug 304546, bug 304517, bug 304083, bug 300998, bug 300976.

Reported using DrKonqi