SBLOCKWAIT
error = ssb_lock(&so->so_snd, SBLOCKWAIT(flags));
error = ssb_lock(&so->so_rcv, SBLOCKWAIT(flags));
error = ssb_lock(&so->so_rcv, SBLOCKWAIT(flags));
error = ssb_lock(&so->so_snd, SBLOCKWAIT(flags));
error = ssb_lock(&so->so_snd, SBLOCKWAIT(flags));