Comment 2 for bug 335942

StacktraceTop:brasero_medium_init_real (object=0x8c9d418,
brasero_medium_probe_thread (self=0x8c9d418)
g_thread_create_proxy (data=0x8bcca70)
start_thread () from /lib/tls/i686/cmov/libpthread.so.0
clone () from /lib/tls/i686/cmov/libc.so.6