Bug 294314

Application: k3b (2.0.2)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-16-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
I was dragging mp3 file to audio CD project. This is reproducible.
The crash can be reproduced every time.

The crash can be reproduced every time.

-- Backtrace:
Application: K3b (k3b), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7825950 (LWP 8221))]

Thread 4 (Thread 0xb6bb4b70 (LWP 8222)):
#0  0x00e60d19 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x00d8df54 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x07cb7877 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x07cb7c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x06934b37 in QEventDispatcherGlib::processEvents (this=0x9b264d8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x069051dd in QEventLoop::processEvents (this=0xb6bb4290, flags=...) at kernel/qeventloop.cpp:149
#6  0x06905421 in QEventLoop::exec (this=0xb6bb4290, flags=...) at kernel/qeventloop.cpp:201
#7  0x0680890b in QThread::exec (this=0x9b26118) at thread/qthread.cpp:498
#8  0x068e5e2d in QInotifyFileSystemWatcherEngine::run (this=0x9b26118) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x0680b7b3 in QThreadPrivate::start (arg=0x9b26118) at thread/qthread_unix.cpp:331
#10 0x00e5dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#11 0x00d800ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xb4e94b70 (LWP 8239)):
#0  0x00e76416 in __kernel_vsyscall ()
#1  0x00e61e04 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x00d8dd54 in pthread_cond_timedwait () from /lib/i386-linux-gnu/libc.so.6
#3  0x0680a90c in thread_sleep (ti=0xb4e942a8) at thread/qthread_unix.cpp:493
#4  0x0680ad64 in QThread::sleep (secs=2) at thread/qthread_unix.cpp:507
#5  0x0019d7de in K3b::MediaCache::PollThread::run (this=0x9c1f3d0) at /build/buildd/k3b-2.0.2/libk3b/tools/k3bmediacache.cpp:106
#6  0x0680b7b3 in QThreadPrivate::start (arg=0x9c1f3d0) at thread/qthread_unix.cpp:331
#7  0x00e5dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x00d800ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xb248cb70 (LWP 8256)):
#0  0x00e60d3e in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x00d8df54 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x07cb7102 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x07cb7990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x07cb7c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x06934b37 in QEventDispatcherGlib::processEvents (this=0xa0d5b90, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x069051dd in QEventLoop::processEvents (this=0xb248c290, flags=...) at kernel/qeventloop.cpp:149
#7  0x06905421 in QEventLoop::exec (this=0xb248c290, flags=...) at kernel/qeventloop.cpp:201
#8  0x0680890b in QThread::exec (this=0xa0bef48) at thread/qthread.cpp:498
#9  0x068e5e2d in QInotifyFileSystemWatcherEngine::run (this=0xa0bef48) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x0680b7b3 in QThreadPrivate::start (arg=0xa0bef48) at thread/qthread_unix.cpp:331
#11 0x00e5dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x00d800ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb7825950 (LWP 8221)):
[KCrash Handler]
#7  0x5196daaf in ?? ()
#8  0xb5775c78 in av_free_packet () from /usr/lib/i686/cmov/libavcodec.so.53
#9  0x038c933e in K3bFFMpegFile::close (this=0xa23f4c8) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:166
#10 0x038c93cc in K3bFFMpegFile::open (this=0xa23f4c8) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:92
#11 0x038ca1f6 in K3bFFMpegWrapper::open (this=0xa0f47d8, filename=...) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp:440
#12 0x038c87b0 in K3bFFMpegDecoderFactory::canDecode (this=0x9b7aa20, url=...) at /build/buildd/k3b-2.0.2/plugins/decoder/ffmpeg/k3bffmpegdecoder.cpp:60
#13 0x001b051b in K3b::AudioDecoderFactory::createDecoder (url=...) at /build/buildd/k3b-2.0.2/libk3b/plugin/k3baudiodecoder.cpp:584
#14 0x002077df in K3b::AudioDoc::getDecoderForUrl (this=0x9c1bfd0, url=..., reused=0xbf83186f) at /build/buildd/k3b-2.0.2/libk3b/projects/audiocd/k3baudiodoc.cpp:454
#15 0x08107e78 in K3b::AudioTrackAddingDialog::slotAddUrls (this=0x9f058d8) at /build/buildd/k3b-2.0.2/src/projects/k3baudiotrackaddingdialog.cpp:173
#16 0x081083e7 in K3b::AudioTrackAddingDialog::qt_metacall (this=0x9f058d8, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xa0ac3f8) at /build/buildd/k3b-2.0.2/obj-i686-linux-gnu/src/k3baudiotrackaddingdialog.moc:78
#17 0x0690cb7d in metacall (argv=0xa0ac3f8, idx=73, cl=QMetaObject::InvokeMetaMethod, object=0x9f058d8) at kernel/qmetaobject.cpp:237
#18 QMetaObject::metacall (object=0x9f058d8, cl=QMetaObject::InvokeMetaMethod, idx=73, argv=0xa0ac3f8) at kernel/qmetaobject.cpp:232
#19 0x06917685 in QMetaCallEvent::placeMetaCall (this=0xa1d2948, object=0x9f058d8) at kernel/qobject.cpp:535
#20 0x0691eb52 in QObject::event (this=0x9f058d8, e=0xa1d2948) at kernel/qobject.cpp:1217
#21 0x049c8c92 in QWidget::event (this=0x9f058d8, event=0xa1d2948) at kernel/qwidget.cpp:8754
#22 0x0496ed84 in notify_helper (e=0xa1d2948, receiver=0x9f058d8, this=0x9a818c8) at kernel/qapplication.cpp:4486
#23 QApplicationPrivate::notify_helper (this=0x9a818c8, receiver=0x9f058d8, e=0xa1d2948) at kernel/qapplication.cpp:4458
#24 0x049741d8 in QApplication::notify (this=0x9a818c8, receiver=0x9f058d8, e=0xa1d2948) at kernel/qapplication.cpp:4451
#25 0x027b5971 in KApplication::notify (this=0xbf832958, receiver=0x9f058d8, event=0xa1d2948) at ../../kdeui/kernel/kapplication.cpp:311
#26 0x0690619e in QCoreApplication::notifyInternal (this=0xbf832958, receiver=0x9f058d8, event=0xa1d2948) at kernel/qcoreapplication.cpp:787
#27 0x06909f93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#28 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9a15300) at kernel/qcoreapplication.cpp:1428
#29 0x0690a0ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1321
#30 0x069346a4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#31 postEventSourceDispatch (s=0x9a80b80) at kernel/qeventdispatcher_glib.cpp:277
#32 0x07cb725f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#33 0x07cb7990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#34 0x07cb7c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#35 0x06934ada in QEventDispatcherGlib::processEvents (this=0x9a16238, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#36 0x04a26e7a in QGuiEventDispatcherGlib::processEvents (this=0x9a16238, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x069051dd in QEventLoop::processEvents (this=0xbf832050, flags=...) at kernel/qeventloop.cpp:149
#38 0x06905421 in QEventLoop::exec (this=0xbf832050, flags=...) at kernel/qeventloop.cpp:201
#39 0x04ea6819 in QDialog::exec (this=0x9f058d8) at dialogs/qdialog.cpp:552
#40 0x04ea7160 in QDialog::qt_metacall (this=0x9f058d8, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xa1b9978) at .moc/release-shared/moc_qdialog.cpp:93
#41 0x026f95b2 in KDialog::qt_metacall (this=0x9f058d8, _c=QMetaObject::InvokeMetaMethod, _id=31, _a=0xa1b9978) at ./kdialog.moc:151
#42 0x081083c3 in K3b::AudioTrackAddingDialog::qt_metacall (this=0x9f058d8, _c=QMetaObject::InvokeMetaMethod, _id=31, _a=0xa1b9978) at /build/buildd/k3b-2.0.2/obj-i686-linux-gnu/src/k3baudiotrackaddingdialog.moc:73
#43 0x0690cb7d in metacall (argv=0xa1b9978, idx=31, cl=QMetaObject::InvokeMetaMethod, object=0x9f058d8) at kernel/qmetaobject.cpp:237
#44 QMetaObject::metacall (object=0x9f058d8, cl=QMetaObject::InvokeMetaMethod, idx=31, argv=0xa1b9978) at kernel/qmetaobject.cpp:232
#45 0x06917685 in QMetaCallEvent::placeMetaCall (this=0xa12a9b8, object=0x9f058d8) at kernel/qobject.cpp:535
#46 0x0691eb52 in QObject::event (this=0x9f058d8, e=0xa12a9b8) at kernel/qobject.cpp:1217
#47 0x049c8c92 in QWidget::event (this=0x9f058d8, event=0xa12a9b8) at kernel/qwidget.cpp:8754
#48 0x0496ed84 in notify_helper (e=0xa12a9b8, receiver=0x9f058d8, this=0x9a818c8) at kernel/qapplication.cpp:4486
#49 QApplicationPrivate::notify_helper (this=0x9a818c8, receiver=0x9f058d8, e=0xa12a9b8) at kernel/qapplication.cpp:4458
#50 0x049741d8 in QApplication::notify (this=0x9a818c8, receiver=0x9f058d8, e=0xa12a9b8) at kernel/qapplication.cpp:4451
#51 0x027b5971 in KApplication::notify (this=0xbf832958, receiver=0x9f058d8, event=0xa12a9b8) at ../../kdeui/kernel/kapplication.cpp:311
#52 0x0690619e in QCoreApplication::notifyInternal (this=0xbf832958, receiver=0x9f058d8, event=0xa12a9b8) at kernel/qcoreapplication.cpp:787
#53 0x06909f93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#54 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9a15300) at kernel/qcoreapplication.cpp:1428
#55 0x0690a0ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1321
#56 0x069346a4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#57 postEventSourceDispatch (s=0x9a80b80) at kernel/qeventdispatcher_glib.cpp:277
#58 0x07cb725f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#59 0x07cb7990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#60 0x07cb7c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#61 0x06934ada in QEventDispatcherGlib::processEvents (this=0x9a16238, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#62 0x04a26e7a in QGuiEventDispatcherGlib::processEvents (this=0x9a16238, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#63 0x069051dd in QEventLoop::processEvents (this=0xbf8328b4, flags=...) at kernel/qeventloop.cpp:149
#64 0x06905421 in QEventLoop::exec (this=0xbf8328b4, flags=...) at kernel/qeventloop.cpp:201
#65 0x0690a19d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#66 0x0496c924 in QApplication::exec () at kernel/qapplication.cpp:3760
#67 0x0807c64e in main (argc=1, argv=0x0) at /build/buildd/k3b-2.0.2/src/main.cpp:165

This bug may be a duplicate of or related to bug 293958.

Possible duplicates by query: bug 293958, bug 293123, bug 292666, bug 290978, bug 290896.

Reported using DrKonqi