.
Thread 2 (process 4641):
#0  0xb80cb430 in __kernel_vsyscall ()
#1  0xb760ae1c in __lll_unlock_wake () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb76074bb in _L_unlock_94 () from /lib/tls/i686/cmov/libpthread.so.0
#3  0xb76070cc in __pthread_mutex_unlock_usercnt ()
   from /lib/tls/i686/cmov/libpthread.so.0
#4  0xb79bbe6e in g_thread_create_full () from /usr/lib/libglib-2.0.so.0
#5  0xb59d6936 in ?? () from /usr/lib/libbrasero-media.so.0
#6  0xb7a574e1 in ?? () from /usr/lib/libgobject-2.0.so.0
#7  0xb7a57c26 in g_object_newv () from /usr/lib/libgobject-2.0.so.0
#8  0xb7a58812 in g_object_new_valist () from /usr/lib/libgobject-2.0.so.0
#9  0xb7a5895e in g_object_new () from /usr/lib/libgobject-2.0.so.0
#10 0xb59dcb8a in ?? () from /usr/lib/libbrasero-media.so.0
#11 0xb59ce013 in brasero_marshal_VOID__STRING_STRING ()
   from /usr/lib/libbrasero-media.so.0
#12 0xb7a51c7b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#13 0xb7a67e0f in ?? () from /usr/lib/libgobject-2.0.so.0
#14 0xb7a69489 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#15 0xb7a69906 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#16 0xb59d1435 in ?? () from /usr/lib/libbrasero-media.so.0
#17 0xb59c2cf9 in ?? () from /usr/lib/libhal.so.1
#18 0xb73300d5 in dbus_connection_dispatch () from /lib/libdbus-1.so.3
#19 0xb803d6bd in ?? () from /usr/lib/libdbus-glib-1.so.2
#20 0xb7991a58 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#21 0xb7994fbb in ?? () from /usr/lib/libglib-2.0.so.0
#22 0xb799548a in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#23 0xb7da25f9 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#24 0x08080a56 in ?? ()
#25 0xb74b1775 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#26 0x0806b5d1 in ?? ()
.
Thread 1 (process 5057):
#0  0xb59d6d10 in ?? () from /usr/lib/libbrasero-media.so.0
#1  0xb59d8f6e in ?? () from /usr/lib/libbrasero-media.so.0
#2  0xb59da2be in ?? () from /usr/lib/libbrasero-media.so.0
#3  0xb79bc66f in ?? () from /usr/lib/libglib-2.0.so.0
#4  0xb76044ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0xb757f49e in clone () from /lib/tls/i686/cmov/libc.so.6