#0  0xb777f540 in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0
#1  0xb4126c62 in ?? () from /usr/lib/gstreamer-0.10/libgstplaybin.so
#2  0xaaaaaaaa in ?? ()
#3  0x0869d380 in ?? ()
#4  0x086fc948 in ?? ()
#5  0xb78a0680 in ?? () from /usr/lib/libgobject-2.0.so.0
#6  0xb4126bd0 in ?? () from /usr/lib/gstreamer-0.10/libgstplaybin.so
#7  0x0866e038 in ?? ()
#8  0xbfca9d28 in ?? ()
#9  0xb787c365 in IA__g_cclosure_marshal_VOID__OBJECT (closure=0x8673850, return_value=0x8651380, n_param_values=140959800, 
    param_values=0x2, invocation_hint=0x10, marshal_data=0x866e038) at /build/buildd/glib2.0-2.15.3/gobject/gmarshal.c:636
	data1 = (gpointer) 0x86fc948
	data2 = (gpointer) 0xb78639c8
	__PRETTY_FUNCTION__ = "IA__g_cclosure_marshal_VOID__OBJECT"
Backtrace stopped: frame did not save the PC