diff --git a/lib/nop.c b/lib/nop.c
index 1729d1b..993ed77 100644
--- a/lib/nop.c
+++ b/lib/nop.c
@@ -83,6 +83,7 @@ iscsi_nop_out_async(struct iscsi_context *iscsi, iscsi_command_cb cb,
 	}
 
 	iscsi->nops_in_flight++;
+	ISCSI_LOG(iscsi, 6, "NOP Out Send (nops_in_flight: %d)", iscsi->nops_in_flight);
 
 	return 0;
 }
@@ -138,6 +139,8 @@ iscsi_process_nop_out_reply(struct iscsi_context *iscsi, struct iscsi_pdu *pdu,
 
 	iscsi->nops_in_flight = 0;
 
+	ISCSI_LOG(iscsi, 6, "NOP Out Reply received");
+
 	if (pdu->callback == NULL) {
 		return 0;
 	}
diff --git a/lib/socket.c b/lib/socket.c
index 4a6dd98..d97798a 100644
--- a/lib/socket.c
+++ b/lib/socket.c
@@ -627,12 +627,16 @@ iscsi_write_to_socket(struct iscsi_context *iscsi)
 			if (iscsi->is_corked) {
 				/* connection is corked we are not allowed to send
 				 * additional PDUs */
+				ISCSI_LOG(iscsi, 6, "iscsi_write_to_socket: socket is corked");
 				return 0;
 			}
 			
 			if (iscsi_serial32_compare(iscsi->outqueue->cmdsn, iscsi->maxcmdsn) > 0
 				&& !(iscsi->outqueue->outdata.data[0] & ISCSI_PDU_IMMEDIATE)) {
 				/* stop sending for non-immediate PDUs. maxcmdsn is reached */
+				ISCSI_LOG(iscsi, 6,
+				          "iscsi_write_to_socket: maxcmdsn reached (outqueue[0]->cmdsnd %08x > maxcmdsn %08x)",
+				          iscsi->outqueue->cmdsn, iscsi->maxcmdsn);
 				return 0;
 			}
 			/* pop first element of the outqueue */