Application: kdenlive (0.9.2)
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:
<In detail, tell us what you were doing  when the application crashed.>

The crash can be reproduced every time.

-- Backtrace:
Application: Kdenlive (kdenlive), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2a18ab8780 (LWP 18937))]

Thread 6 (Thread 0x7f29f0838700 (LWP 18950)):
#0  0x00007f2a14f8bd84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f29fa302db2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f2a14f87e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x00007f2a134e84bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f29f1039700 (LWP 18951)):
#0  0x00007f2a14f8bd84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f29fa302db2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f2a14f87e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x00007f2a134e84bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f29dffff700 (LWP 18952)):
#0  0x00007f2a14f8bd84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f29fa302db2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f2a14f87e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x00007f2a134e84bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f29e8ff9700 (LWP 18953)):
#0  0x00007f2a14f8bd84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f29fa302db2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f2a14f87e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x00007f2a134e84bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f29ea7fc700 (LWP 18954)):
#0  0x00007f2a14f8bd84 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f29fa302db2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f2a14f87e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x00007f2a134e84bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f2a18ab8780 (LWP 18937)):
[KCrash Handler]
#6  0x00000000005b5b23 in size (this=0x2518558) at /usr/include/qt4/QtCore/qlist.h:98
#7  count (this=0x2518558) at /usr/include/qt4/QtCore/qlist.h:280
#8  DocClipBase::snapMarkers (this=0x2518510) at /build/buildd/kdenlive-0.9.2/src/docclipbase.cpp:280
#9  0x0000000000527af4 in ClipItem::snapMarkers (this=0x2304f50) at /build/buildd/kdenlive-0.9.2/src/clipitem.cpp:1034
#10 0x00000000005a443a in CustomTrackView::updateSnapPoints (this=0x21cff90, selected=<optimized out>, offsetList=..., skipSelectedItems=false) at /build/buildd/kdenlive-0.9.2/src/customtrackview.cpp:5048
#11 0x000000000056992d in CustomRuler::mousePressEvent (this=0x21eb240, event=0x7fff863a8160) at /build/buildd/kdenlive-0.9.2/src/customruler.cpp:166
#12 0x00007f2a1618e429 in QWidget::event (this=0x21eb240, event=0x7fff863a8160) at kernel/qwidget.cpp:8358
#13 0x00007f2a1613d894 in notify_helper (e=0x7fff863a8160, receiver=0x21eb240, this=0xd910f0) at kernel/qapplication.cpp:4559
#14 QApplicationPrivate::notify_helper (this=0xd910f0, receiver=0x21eb240, e=0x7fff863a8160) at kernel/qapplication.cpp:4531
#15 0x00007f2a161430bf in QApplication::notify (this=<optimized out>, receiver=0x21eb240, e=0x7fff863a8160) at kernel/qapplication.cpp:4102
#16 0x00007f2a184a69e6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#17 0x00007f2a1575ae9c in QCoreApplication::notifyInternal (this=0x7fff863a8e40, receiver=0x21eb240, event=0x7fff863a8160) at kernel/qcoreapplication.cpp:876
#18 0x00007f2a1613e862 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#19 QApplicationPrivate::sendMouseEvent (receiver=0x21eb240, event=0x7fff863a8160, alienWidget=0x21eb240, nativeWidget=0x21cbe30, buttonDown=0x21eb240, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3170
#20 0x00007f2a161bdbf5 in QETWidget::translateMouseEvent (this=0x21cbe30, event=<optimized out>) at kernel/qapplication_x11.cpp:4617
#21 0x00007f2a161bcbae in QApplication::x11ProcessEvent (this=0x7fff863a8e40, event=0x7fff863a8a30) at kernel/qapplication_x11.cpp:3732
#22 0x00007f2a161e60d2 in x11EventSourceDispatch (s=0xd93270, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#23 0x00007f2a10a8bd53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f2a10a8c0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f2a10a8c164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f2a1578a3bf in QEventDispatcherGlib::processEvents (this=0xd6abb0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#27 0x00007f2a161e5d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x00007f2a15759c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007f2a15759ed7 in QEventLoop::exec (this=0x7fff863a8dd0, flags=...) at kernel/qeventloop.cpp:204
#30 0x00007f2a1575ef67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#31 0x000000000045305b in main (argc=5, argv=0x7fff863a9488) at /build/buildd/kdenlive-0.9.2/src/main.cpp:89

Report to http://kdenlive.org/mantis