Bug 307123

Application: k3b (2.0.2)
KDE Platform Version: 4.9.1 (Compiled from sources)
Qt Version: 4.8.2
Operating System: Linux 3.2.0-30-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

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

Just selected this ISO, crash occurs
sometimes, the file-check took place, indicating download is "ok", then crashing of K3b after some seconds, before even finishing the setup of K3B

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 0x7f21ed6197c0 (LWP 13965))]

Thread 4 (Thread 0x7f21d2fa8700 (LWP 13966)):
#0  0x00007f21e703cb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f21e2ff6036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f21e2ff6164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f21e8709906 in QEventDispatcherGlib::processEvents (this=0x7f21cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f21e86d8e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f21e86d9097 in QEventLoop::exec (this=0x7f21d2fa7d90, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f21e85d8057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f21e86b8b4f in QInotifyFileSystemWatcherEngine::run (this=0x25835e0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f21e85db07b in QThreadPrivate::start (arg=0x25835e0) at thread/qthread_unix.cpp:307
#9  0x00007f21e2d98e9a in start_thread (arg=0x7f21d2fa8700) at pthread_create.c:308
#10 0x00007f21e70484bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f21c37fe700 (LWP 13998)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:215
#1  0x00007f21e85d9d48 in thread_sleep (ti=0x7f21c37fdd90) at thread/qthread_unix.cpp:444
#2  0x00007f21e85da4a6 in QThread::sleep (secs=<optimized out>) at thread/qthread_unix.cpp:458
#3  0x00007f21ecef105a in K3b::MediaCache::PollThread::run (this=0x26afb40) at /build/buildd/k3b-2.0.2/libk3b/tools/k3bmediacache.cpp:106
#4  0x00007f21e85db07b in QThreadPrivate::start (arg=0x26afb40) at thread/qthread_unix.cpp:307
#5  0x00007f21e2d98e9a in start_thread (arg=0x7f21c37fe700) at pthread_create.c:308
#6  0x00007f21e70484bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f21c2066700 (LWP 14113)):
#0  0x00007f21e703cb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f21e2ff6036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f21e2ff6164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f21e8709906 in QEventDispatcherGlib::processEvents (this=0x7f21b80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f21e86d8e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f21e86d9097 in QEventLoop::exec (this=0x7f21c2065d90, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f21e85d8057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f21e86b8b4f in QInotifyFileSystemWatcherEngine::run (this=0x2fac820) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f21e85db07b in QThreadPrivate::start (arg=0x2fac820) at thread/qthread_unix.cpp:307
#9  0x00007f21e2d98e9a in start_thread (arg=0x7f21c2066700) at pthread_create.c:308
#10 0x00007f21e70484bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f21ed6197c0 (LWP 13965)):
[KCrash Handler]
#6  0x00007f21d1200c92 in av_free_packet () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#7  0x00007f21d1f66cfe in K3bFFMpegFile::close (this=0x2fe68b0) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:166
#8  0x00007f21d1f66d63 in K3bFFMpegFile::open (this=0x2fe68b0) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:92
#9  0x00007f21d1f67989 in K3bFFMpegWrapper::open (this=<optimized out>, filename=...) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:440
#10 0x00007f21d1f663f2 in K3bFFMpegDecoderFactory::canDecode (this=<optimized out>, url=...) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegdecoder.cpp:60
#11 0x000000000051735f in areAudioFiles (urls=...) at /build/buildd/k3b-2.0.2/src/k3b.cpp:152
#12 K3b::MainWindow::addUrls (this=0x26af280, urls=...) at /build/buildd/k3b-2.0.2/src/k3b.cpp:1545
#13 0x000000000050a723 in K3b::DirOperator::slotAddFilesToProject (this=<optimized out>) at /build/buildd/k3b-2.0.2/src/k3bdiroperator.cpp:164
#14 0x00007f21e86ee761 in QMetaObject::activate (sender=0x2912030, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffa54faf50) at kernel/qobject.cpp:3547
#15 0x00007f21ec980aa5 in KDirOperator::fileSelected (this=<optimized out>, _t1=...) at ./kdiroperator.moc:335
#16 0x00007f21ec980b85 in KDirOperator::Private::_k_slotActivated (this=0x29123b0, index=...) at ../../kfile/kdiroperator.cpp:2364
#17 0x00007f21ec9862e2 in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at ./kdiroperator.moc:227
#18 KDirOperator::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./kdiroperator.moc:160
#19 0x00007f21e86ee761 in QMetaObject::activate (sender=0x2bb2930, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffa54fb110) at kernel/qobject.cpp:3547
#20 0x00007f21e7d05155 in QAbstractItemView::activated (this=<optimized out>, _t1=...) at .moc/release-shared/moc_qabstractitemview.cpp:362
#21 0x00007f21e7d0565f in QAbstractItemView::mouseReleaseEvent (this=0x2bb2930, event=0x7fffa54fbef0) at itemviews/qabstractitemview.cpp:1821
#22 0x00007f21e782efb4 in QWidget::event (this=0x2bb2930, event=0x7fffa54fbef0) at kernel/qwidget.cpp:8371
#23 0x00007f21e7bef836 in QFrame::event (this=0x2bb2930, e=0x7fffa54fbef0) at widgets/qframe.cpp:557
#24 0x00007f21e7d03eeb in QAbstractItemView::viewportEvent (this=0x2bb2930, event=0x7fffa54fbef0) at itemviews/qabstractitemview.cpp:1644
#25 0x00007f21e7d4bc75 in QTreeView::viewportEvent (this=0x2bb2930, event=0x7fffa54fbef0) at itemviews/qtreeview.cpp:1257
#26 0x00007f21e86da498 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x2b7e270, event=0x7fffa54fbef0) at kernel/qcoreapplication.cpp:1025
#27 0x00007f21e77de77f in notify_helper (e=0x7fffa54fbef0, receiver=0x2b7e270, this=0x240db50) at kernel/qapplication.cpp:4552
#28 QApplicationPrivate::notify_helper (this=0x240db50, receiver=0x2b7e270, e=0x7fffa54fbef0) at kernel/qapplication.cpp:4528
#29 0x00007f21e77e3f2f in QApplication::notify (this=<optimized out>, receiver=0x2b7e270, e=0x7fffa54fbef0) at kernel/qapplication.cpp:4099
#30 0x00007f21e91404a6 in KApplication::notify (this=0x7fffa54fcbd0, receiver=0x2b7e270, event=0x7fffa54fbef0) at ../../kdeui/kernel/kapplication.cpp:311
#31 0x00007f21e86da30c in QCoreApplication::notifyInternal (this=0x7fffa54fcbd0, receiver=0x2b7e270, event=0x7fffa54fbef0) at kernel/qcoreapplication.cpp:915
#32 0x00007f21e77df782 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#33 QApplicationPrivate::sendMouseEvent (receiver=0x2b7e270, event=0x7fffa54fbef0, alienWidget=0x2b7e270, nativeWidget=0x29134f0, buttonDown=0x2b7e270, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3167
#34 0x00007f21e785eb15 in QETWidget::translateMouseEvent (this=0x29134f0, event=<optimized out>) at kernel/qapplication_x11.cpp:4617
#35 0x00007f21e785dace in QApplication::x11ProcessEvent (this=0x7fffa54fcbd0, event=0x7fffa54fc7c0) at kernel/qapplication_x11.cpp:3732
#36 0x00007f21e7887052 in x11EventSourceDispatch (s=0x2404790, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#37 0x00007f21e2ff5d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f21e2ff60a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007f21e2ff6164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007f21e870989f in QEventDispatcherGlib::processEvents (this=0x2364b00, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#41 0x00007f21e7886cde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#42 0x00007f21e86d8e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#43 0x00007f21e86d9097 in QEventLoop::exec (this=0x7fffa54fcb60, flags=...) at kernel/qeventloop.cpp:204
#44 0x00007f21e86de3e7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#45 0x00000000004434d6 in main (argc=1, argv=0x7fffa54fd818) at /build/buildd/k3b-2.0.2/src/main.cpp:165

This bug may be a duplicate of or related to bug 305552.

Possible duplicates by query: bug 307071, bug 306980, bug 306046, bug 305809, bug 305552.

Reported using DrKonqi