ctr->peer_mq = uword_to_pointer (mp->peer_evt_q_address, svm_msg_q_t *);
VDBG (0, "Adding ct registration %u", vcl_ct_registration_index (ctr));
- if (mp->fd_flags & SESSION_FD_F_MQ_EVENTFD)
+ if (mp->n_fds && (mp->fd_flags & SESSION_FD_F_MQ_EVENTFD))
{
svm_msg_q_set_consumer_eventfd (ctr->mq, fds[0]);
svm_msg_q_set_producer_eventfd (ctr->peer_mq, fds[1]);