Application: kdenlive (0.8.2.1)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-33-generic-pae i686
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/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb4163740 (LWP 16678))]

Thread 11 (Thread 0xb1ba7b40 (LWP 16681)):
#0  0xb7390424 in __kernel_vsyscall ()
#1  0xb517c5f0 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb4e92a7b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb4e850ae in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb4e8556b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb1bfc134 in ?? () from /usr/lib/i386-linux-gnu/gio/modules/libdconfsettings.so
#6  0xb4ea86b3 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb67bad4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb518ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 10 (Thread 0xb11ffb40 (LWP 16682)):
#0  0xb67bce13 in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb4ec43d0 in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb4e846b6 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb4e84faf in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb4e8556b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb290a1ba in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb4ea86b3 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb67bad4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb518ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 9 (Thread 0xa3e01b40 (LWP 16689)):
#0  0xb7390424 in __kernel_vsyscall ()
#1  0xb517c5f0 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb4e92a7b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb4e850ae in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb4e85201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb70fc8e7 in QEventDispatcherGlib::processEvents (this=0xb08023c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb70c850d in QEventLoop::processEvents (this=0xa3e01240, flags=...) at kernel/qeventloop.cpp:149
#7  0xb70c87a9 in QEventLoop::exec (this=0xa3e01240, flags=...) at kernel/qeventloop.cpp:204
#8  0xb6fb194c in QThread::exec (this=0xb830c058) at thread/qthread.cpp:501
#9  0xb70a5b5d in QInotifyFileSystemWatcherEngine::run (this=0xb830c058) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb6fb4de0 in QThreadPrivate::start (arg=0xb830c058) at thread/qthread_unix.cpp:298
#11 0xb67bad4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb518ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 8 (Thread 0xa5e05b40 (LWP 16812)):
#0  0xb7390424 in __kernel_vsyscall ()
#1  0xb67bed13 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb7360a97 in mlt_consumer_put_frame () from /usr/lib/libmlt.so.4
#3  0xaf020f11 in ?? () from /usr/lib/mlt/libmltsdl.so
#4  0xb67bad4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#5  0xb518ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 7 (Thread 0xa1cc0b40 (LWP 16814)):
#0  0xb7390424 in __kernel_vsyscall ()
#1  0xb67c21f6 in nanosleep () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xaf01e6ef in ?? () from /usr/lib/mlt/libmltsdl.so
#3  0xb67bad4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#4  0xb518ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 6 (Thread 0x9a6e7b40 (LWP 16815)):
#0  0xb7390424 in __kernel_vsyscall ()
#1  0xb67be96b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb7361074 in ?? () from /usr/lib/libmlt.so.4
#3  0xb67bad4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#4  0xb518ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 5 (Thread 0xa5604b40 (LWP 16816)):
#0  0xb7390424 in __kernel_vsyscall ()
#1  0xb67bed13 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb7360cff in mlt_consumer_get_frame () from /usr/lib/libmlt.so.4
#3  0xb73617e1 in mlt_consumer_rt_frame () from /usr/lib/libmlt.so.4
#4  0xaf02185e in ?? () from /usr/lib/mlt/libmltsdl.so
#5  0xb67bad4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb518ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0x7971bb40 (LWP 16817)):
#0  0xb7390424 in __kernel_vsyscall ()
#1  0xb67be96b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xaf020f4a in ?? () from /usr/lib/mlt/libmltsdl.so
#3  0xb67bad4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#4  0xb518ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0x74f19b40 (LWP 16818)):
#0  0xb453253c in pa_context_get_state () from /usr/lib/i386-linux-gnu/libpulse.so.0
#1  0xaef9f56b in ?? () from /usr/lib/i386-linux-gnu/libSDL-1.2.so.0
#2  0xaef6bd4c in ?? () from /usr/lib/i386-linux-gnu/libSDL-1.2.so.0
#3  0xaef74601 in ?? () from /usr/lib/i386-linux-gnu/libSDL-1.2.so.0
#4  0xaefbdcdb in ?? () from /usr/lib/i386-linux-gnu/libSDL-1.2.so.0
#5  0xb67bad4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb518ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0x74718b40 (LWP 16819)):
[KCrash Handler]
#7  0xb53b86d5 in QDBusAdaptorConnector::relaySlot (this=0xb80684d0, argv=0x74717e28) at qdbusabstractadaptor.cpp:270
#8  0xb53b8acb in QDBusAdaptorConnector::qt_metacall (this=0xb80684d0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x74717e28) at qdbusabstractadaptor.cpp:366
#9  0xb70d0c9d in metacall (argv=0x74717e28, idx=4, cl=QMetaObject::InvokeMetaMethod, object=0xb80684d0) at kernel/qmetaobject.cpp:245
#10 QMetaObject::metacall (object=0xb80684d0, cl=QMetaObject::InvokeMetaMethod, idx=4, argv=0x74717e28) at kernel/qmetaobject.cpp:240
#11 0xb70e09bd in QMetaObject::activate (sender=0xb8d78dd0, m=0xb7225dd8, local_signal_index=0, argv=0x74717e28) at kernel/qobject.cpp:3566
#12 0xb70e1075 in QObject::destroyed (this=0xb8d78dd0, _t1=0xb8d78dd0) at .moc/release-shared/moc_qobject.cpp:149
#13 0xb70e3f8f in QObject::~QObject (this=0xb8d78dd0, __in_chrg=<optimized out>) at kernel/qobject.cpp:844
#14 0xb69bf756 in KIO::Scheduler::~Scheduler (this=0xb8d78dd0, __in_chrg=<optimized out>) at ../../kio/kio/scheduler.cpp:793
#15 0xb69bf782 in KIO::Scheduler::~Scheduler (this=0xb8d78dd0, __in_chrg=<optimized out>) at ../../kio/kio/scheduler.cpp:795
#16 0xb69cb5f4 in KIO::SchedulerPrivate::~SchedulerPrivate (this=0xb8e8ae80, __in_chrg=<optimized out>) at ../../kio/kio/scheduler.cpp:671
#17 0xb69c3b19 in destroy () at ../../kio/kio/scheduler.cpp:752
#18 0xb690a849 in KCleanUpGlobalStatic::~KCleanUpGlobalStatic (this=0xb6b092d0, __in_chrg=<optimized out>) at ../../kdecore/kernel/kglobal.h:62
#19 0xb50cef51 in ?? () from /lib/i386-linux-gnu/libc.so.6
#20 0xb50cefdd in exit () from /lib/i386-linux-gnu/libc.so.6
#21 0xb2364abf in ?? () from /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0
#22 0xb6cf4ec9 in KApplication::xioErrhandler (this=0xbfe810b4, dpy=0xb9aeaf40) at ../../kdeui/kernel/kapplication.cpp:419
#23 0xb6cf4f04 in kde_xio_errhandler (dpy=0xb9aeaf40) at ../../kdeui/kernel/kapplication.cpp:126
#24 0xaefa6009 in ?? () from /usr/lib/i386-linux-gnu/libSDL-1.2.so.0
#25 0xb6434b74 in _XIOError () from /usr/lib/i386-linux-gnu/libX11.so.6
#26 0xb643297c in _XReply () from /usr/lib/i386-linux-gnu/libX11.so.6
#27 0xb642df0b in XSync () from /usr/lib/i386-linux-gnu/libX11.so.6
#28 0xaefaa1ff in ?? () from /usr/lib/i386-linux-gnu/libSDL-1.2.so.0
#29 0xaef981dd in SDL_DisplayYUVOverlay () from /usr/lib/i386-linux-gnu/libSDL-1.2.so.0
#30 0xaf01e0c0 in ?? () from /usr/lib/mlt/libmltsdl.so
#31 0xb67bad4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#32 0xb518ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb4163740 (LWP 16678)):
#0  0xb7390424 in __kernel_vsyscall ()
#1  0xb67c19db in read () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb4ec36ae in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb4e84bd2 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb4e85042 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb4e85201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb70fc887 in QEventDispatcherGlib::processEvents (this=0xb7ecdcb0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#7  0xb590faaa in QGuiEventDispatcherGlib::processEvents (this=0xb7ecdcb0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#8  0xb70c850d in QEventLoop::processEvents (this=0xbfe81014, flags=...) at kernel/qeventloop.cpp:149
#9  0xb70c87a9 in QEventLoop::exec (this=0xbfe81014, flags=...) at kernel/qeventloop.cpp:204
#10 0xb70cdeba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#11 0xb5854a74 in QApplication::exec () at kernel/qapplication.cpp:3820
#12 0xb73ffc2a in ?? ()
#13 0xb50b54d3 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
#14 0xb7400b65 in _start ()

Report to http://kdenlive.org/mantis