looks like these do need to be enabled, hanging on pending sessions:

debug: pending: session: 0x4181d180, handle: 0x0
debug: selecting: inbound , read: sockfd: 1, popfd: 1, write: sockfd: 0
debug: select: 1, read: sockfd: 1, popfd: 0, write: sockfd: 0
debug: pending: session: 0x4181d180, handle: 0x0
debug: selecting: inbound , read: sockfd: 1, popfd: 1, write: sockfd: 0

ggatessh/ggatessh.c

@@ -817,13 +817,13 @@ procreq:
 		if (gsc_pending != NULL) {
 			/* we are creating a new session */
 			if (gsc_pending->sc_session == NULL) {
-				//didwork = 1;
+				*didworkp = 1;
 				gsc_pending->sc_session =
 				    libssh2_sftp_init(session);
 			}
 
 			if (gsc_pending->sc_session != NULL) {
-				//didwork = 1;
+				*didworkp = 1;
 				gsc_pending->sc_handle = libssh2_sftp_open(
 				    gsc_pending->sc_session, "fstest/data.img",
 				    get_open_flags(), 0);
@@ -839,7 +839,7 @@ procreq:
 				TAILQ_INSERT_HEAD(&session_cache, gsc_pending,
 				    sc_next);
 				gsc_pending = NULL;
-				//didwork = 1;
+				*didworkp = 1;
 				goto procreq;
 			}
 		}