Application: kdenlive (0.9.2)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-35-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
<Descrivi dettagliatamente cosa stavi facendo quando si è verificato l'errore.>

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 0x7f6bcf6017c0 (LWP 6962))]

Thread 16 (Thread 0x7f6bb68bc700 (LWP 6965)):
#0  0x00007f6bc9f748bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f6bcb2bd0bc in ?? () from /usr/lib/nvidia-current/libGL.so.1
#2  0x00007f6bc63d9b27 in ?? () from /usr/lib/nvidia-current/tls/libnvidia-tls.so.295.40
#3  0x00007f6bc755e8cf in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6bc7523ba4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6bc7523fd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f6bc752449a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f6bb68c198b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#8  0x00007f6bc75459e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f6bcbad8e9a in start_thread (arg=0x7f6bb68bc700) at pthread_create.c:308
#11 0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7f6bb5cb0700 (LWP 6966)):
#0  0x00007f6bcbadc05d in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x7f6bb00103e0) at pthread_mutex_unlock.c:290
#2  0x00007f6bc755f5d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6bc752402a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6bc752449a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6bbd1aa406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f6bc75459e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#8  0x00007f6bcbad8e9a in start_thread (arg=0x7f6bb5cb0700) at pthread_create.c:308
#9  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7f6b96cba700 (LWP 6980)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6bcdb6e222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f6bcdb6e259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f6bcbad8e9a in start_thread (arg=0x7f6b96cba700) at pthread_create.c:308
#5  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7f6b955d9700 (LWP 6983)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6ba17e6cf2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#3  0x00007f6bcbad8e9a in start_thread (arg=0x7f6b955d9700) at pthread_create.c:308
#4  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7f6b94dd8700 (LWP 6984)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6ba17e6cf2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#3  0x00007f6bcbad8e9a in start_thread (arg=0x7f6b94dd8700) at pthread_create.c:308
#4  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f6b8ffff700 (LWP 6985)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6ba17e6cf2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#3  0x00007f6bcbad8e9a in start_thread (arg=0x7f6b8ffff700) at pthread_create.c:308
#4  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f6b8f7fe700 (LWP 6986)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6ba17e6cf2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#3  0x00007f6bcbad8e9a in start_thread (arg=0x7f6b8f7fe700) at pthread_create.c:308
#4  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f6b8effd700 (LWP 6987)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6ba17e6cf2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#3  0x00007f6bcbad8e9a in start_thread (arg=0x7f6b8effd700) at pthread_create.c:308
#4  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f6b97cc4700 (LWP 6989)):
[KCrash Handler]
#6  __strcmp_sse42 () at ../sysdeps/x86_64/multiarch/strcmp-sse42.S:164
#7  0x00007f6b9578c7d5 in f0r_set_param_value () from /usr/lib/frei0r-1/curves.so
#8  0x00007f6b9aad6d74 in process_frei0r_item (service=0x3b0a860, position=636, time=25.440000000000001, prop=0x3b0a860, this=0x7f6b900021a0, image=0x7f6b97cc3d18, width=0x7f6b97cc3d28, height=0x7f6b97cc3d2c) at frei0r_helper.c:117
#9  0x00007f6b9aad682b in filter_get_image (this=0x7f6b900021a0, image=0x7f6b97cc3d18, format=<optimized out>, width=0x7f6b97cc3d28, height=0x7f6b97cc3d2c, writable=<optimized out>) at filter_frei0r.c:39
#10 0x00007f6bcbf12bda in mlt_frame_get_image (self=0x7f6b900021a0, buffer=0x7f6b97cc3d18, format=0x7f6b97cc3d24, width=0x7f6b97cc3d28, height=0x7f6b97cc3d2c, writable=0) at mlt_frame.c:452
#11 0x00007f6bcbf2577d in producer_get_image (self=0x7f6b900c1170, buffer=0x7f6b97cc3d18, format=0x7f6b97cc3d24, width=0x7f6b97cc3d28, height=0x7f6b97cc3d2c, writable=<optimized out>) at mlt_tractor.c:273
#12 0x00007f6bcbf12bda in mlt_frame_get_image (self=0x7f6b900c1170, buffer=0x7f6b97cc3d18, format=0x7f6b97cc3d24, width=0x7f6b97cc3d28, height=0x7f6b97cc3d2c, writable=0) at mlt_frame.c:452
#13 0x00007f6b9cb0ab5b in consumer_play_video (frame=0x7f6b900c1170, this=0x2923e00) at consumer_sdl_still.c:479
#14 consumer_thread (arg=<optimized out>) at consumer_sdl_still.c:579
#15 0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#16 0x00007f6bcbad8e9a in start_thread (arg=0x7f6b97cc4700) at pthread_create.c:308
#17 0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#18 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f6b974c3700 (LWP 6990)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6b9cb0a0e7 in consumer_thread (arg=0x29261e0) at consumer_sdl_preview.c:454
#2  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#3  0x00007f6bcbad8e9a in start_thread (arg=0x7f6b974c3700) at pthread_create.c:308
#4  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f6b8dffb700 (LWP 6991)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6ba17e6cf2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#3  0x00007f6bcbad8e9a in start_thread (arg=0x7f6b8dffb700) at pthread_create.c:308
#4  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f6b8d7fa700 (LWP 6992)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6ba17e6cf2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#3  0x00007f6bcbad8e9a in start_thread (arg=0x7f6b8d7fa700) at pthread_create.c:308
#4  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f6b8cff9700 (LWP 6993)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6ba17e6cf2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#3  0x00007f6bcbad8e9a in start_thread (arg=0x7f6b8cff9700) at pthread_create.c:308
#4  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f6b83fff700 (LWP 6994)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6ba17e6cf2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#3  0x00007f6bcbad8e9a in start_thread (arg=0x7f6b83fff700) at pthread_create.c:308
#4  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f6b837fe700 (LWP 6995)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6ba17e6cf2 in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec.so.53
#2  0x00007f6bcb2beb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#3  0x00007f6bcbad8e9a in start_thread (arg=0x7f6b837fe700) at pthread_create.c:308
#4  0x00007f6bc9f81cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f6bcf6017c0 (LWP 6962)):
#0  0x00007f6bc9f748bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f6bcb2bd0bc in ?? () from /usr/lib/nvidia-current/libGL.so.1
#2  0x00007f6bc63d9b27 in ?? () from /usr/lib/nvidia-current/tls/libnvidia-tls.so.295.40
#3  0x00007f6bc755e8cf in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6bc7523ba4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6bc7523fd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f6bc7524164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f6bcc2db3bf in QEventDispatcherGlib::processEvents (this=0x159ebb0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#8  0x00007f6bccd36d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#9  0x00007f6bcc2aac82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#10 0x00007f6bcc2aaed7 in QEventLoop::exec (this=0x7fffaef4f8a0, flags=...) at kernel/qeventloop.cpp:204
#11 0x00007f6bcc2aff67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#12 0x000000000045305b in main (argc=5, argv=0x7fffaef4ff58) at /build/buildd/kdenlive-0.9.2/src/main.cpp:89

Segnala a http://kdenlive.org/mantis