.
Thread 4 (process 3375):
#0  0x00007f68fdb822e9 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007f68e5c74630 in ?? ()
   from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#2  0x00007f68f5055d86 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#3  0x00007f68fedddeb7 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f68feddc954 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007f68fdb7e3ba in start_thread () from /lib/libpthread.so.0
#6  0x00007f68fd8eafcd in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()
.
Thread 3 (process 2990):
#0  0x00007f68fdb84a94 in __lll_lock_wait () from /lib/libpthread.so.0
#1  0x00007f68fdb80190 in _L_lock_102 () from /lib/libpthread.so.0
#2  0x00007f68fdb7fa7e in pthread_mutex_lock () from /lib/libpthread.so.0
#3  0x00007f68ff4a21ce in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#4  0x00007f68ff4a2943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#5  0x00007f68f50115a2 in gst_bus_async_signal_func ()
   from /usr/lib/libgstreamer-0.10.so.0
#6  0x00007f68f50124f3 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#7  0x00007f68fedb30ca in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#8  0x00007f68fedb67a0 in ?? () from /usr/lib/libglib-2.0.so.0
#9  0x00007f68fedb6c6d in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#10 0x00007f68f5011a9c in gst_bus_poll () from /usr/lib/libgstreamer-0.10.so.0
#11 0x00007f68f570e8b7 in bacon_video_widget_open_with_subtitle ()
   from /usr/lib/nautilus/extensions-2.0/libtotem-properties-page.so
#12 0x00007f68f56ffbca in totem_properties_view_set_location ()
   from /usr/lib/nautilus/extensions-2.0/libtotem-properties-page.so
#13 0x00007f68f56ffd1a in totem_properties_view_new ()
   from /usr/lib/nautilus/extensions-2.0/libtotem-properties-page.so
#14 0x00007f68f56ffa16 in ?? ()
   from /usr/lib/nautilus/extensions-2.0/libtotem-properties-page.so
#15 0x00000000004915a2 in ?? ()
#16 0x0000000000494b18 in ?? ()
#17 0x00000000004b2637 in ?? ()
#18 0x00007f68fedb30ca in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#19 0x00007f68fedb67a0 in ?? () from /usr/lib/libglib-2.0.so.0
#20 0x00007f68fedb6c6d in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#21 0x00007f69006209f7 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#22 0x0000000000442967 in ?? ()
#23 0x00007f68fd8235a6 in __libc_start_main () from /lib/libc.so.6
#24 0x000000000042f659 in ?? ()
#25 0x00007fff0a1a39b8 in ?? ()
#26 0x000000000000001c in ?? ()
#27 0x0000000000000001 in ?? ()
#28 0x00007fff0a1a5b2b in ?? ()
#29 0x0000000000000000 in ?? ()
.
Thread 2 (process 3374):
#0  0x00007f68fdb822e9 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007f68e5c74630 in ?? ()
   from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#2  0x00007f68f5055d86 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#3  0x00007f68fedddeb7 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f68feddc954 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007f68fdb7e3ba in start_thread () from /lib/libpthread.so.0
#6  0x00007f68fd8eafcd in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()
.
Thread 1 (process 3373):
#0  0x00007f68ff48e673 in ?? () from /usr/lib/libgobject-2.0.so.0
#1  0x00007f68ff4901a5 in g_object_set_valist ()
   from /usr/lib/libgobject-2.0.so.0
#2  0x00007f68ff490454 in g_object_set () from /usr/lib/libgobject-2.0.so.0
#3  0x00007f68e6bd60d0 in ?? () from /usr/lib/gstreamer-0.10/libgstplaybin.so
#4  0x00007f68e6bd64a9 in ?? () from /usr/lib/gstreamer-0.10/libgstplaybin.so
#5  0x00007f68e6bd7a60 in ?? () from /usr/lib/gstreamer-0.10/libgstplaybin.so
#6  0x00007f68ff48b27d in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#7  0x00007f68ff4a0dc8 in ?? () from /usr/lib/libgobject-2.0.so.0
#8  0x00007f68ff4a2422 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#9  0x00007f68ff4a2943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#10 0x00007f68ff48b27d in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#11 0x00007f68ff4a0dc8 in ?? () from /usr/lib/libgobject-2.0.so.0
#12 0x00007f68ff4a2422 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#13 0x00007f68ff4a2943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#14 0x00007f68e4fdb99b in ?? () from /usr/lib/gstreamer-0.10/libgstqtdemux.so
#15 0x00007f68e4fe1440 in ?? () from /usr/lib/gstreamer-0.10/libgstqtdemux.so
#16 0x00007f68f5055d86 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#17 0x00007f68fedddeb7 in ?? () from /usr/lib/libglib-2.0.so.0
#18 0x00007f68feddc954 in ?? () from /usr/lib/libglib-2.0.so.0
#19 0x00007f68fdb7e3ba in start_thread () from /lib/libpthread.so.0
#20 0x00007f68fd8eafcd in clone () from /lib/libc.so.6
#21 0x0000000000000000 in ?? ()