ospf6d: move error logs out from behind debug flags

The logging in ospf6 is very verbose.  If you turn on logging on a scaled
system you get too many logs.   The problem is that there are some errors
that occur that are hidden behind the debug flags, and to see these errors
we currently need to turn on the debug logging.  This change converts these
error logs to warnings and removes the debug flags.

Signed-off-by: Lynne Morrison <lynne@voltanet.io>

5 files changed, 109 insertions, 176 deletions

diff --git a/ospf6d/ospf6_flood.c b/ospf6d/ospf6_flood.c
index ac16e53d6..bb871e255 100644
--- a/ospf6d/ospf6_flood.c
+++ b/ospf6d/ospf6_flood.c
@@ -974,11 +974,12 @@ void ospf6_receive_lsa(struct ospf6_neighbor *from,
 		/* if no database copy, should go above state (5) */
 		assert(old);
 
-		if (is_debug) {
-			zlog_debug(
-				"Received is not newer, on the neighbor's request-list");
-			zlog_debug("BadLSReq, discard the received LSA");
-		}
+		zlog_warn(
+			"Received is not newer, on the neighbor %s request-list",
+			from->name);
+		zlog_warn(
+			"BadLSReq, discard the received LSA lsa %s send badLSReq",
+			new->name);
 
 		/* BadLSReq */
 		thread_add_event(master, bad_lsreq, from, 0, NULL);
diff --git a/ospf6d/ospf6_interface.c b/ospf6d/ospf6_interface.c
index 952c7f8b2..6763e7457 100644
--- a/ospf6d/ospf6_interface.c
+++ b/ospf6d/ospf6_interface.c
@@ -701,20 +701,17 @@ int interface_up(struct thread *thread)
 
 	/* check physical interface is up */
 	if (!if_is_operative(oi->interface)) {
-		if (IS_OSPF6_DEBUG_INTERFACE)
-			zlog_debug(
-				"Interface %s is down, can't execute [InterfaceUp]",
-				oi->interface->name);
+		zlog_warn("Interface %s is down, can't execute [InterfaceUp]",
+			  oi->interface->name);
 		return 0;
 	}
 
 	/* check interface has a link-local address */
 	if (!(ospf6_interface_get_linklocal_address(oi->interface)
 	      || if_is_loopback_or_vrf(oi->interface))) {
-		if (IS_OSPF6_DEBUG_INTERFACE)
-			zlog_debug(
-				"Interface %s has no link local address, can't execute [InterfaceUp]",
-				oi->interface->name);
+		zlog_warn(
+			"Interface %s has no link local address, can't execute [InterfaceUp]",
+			oi->interface->name);
 		return 0;
 	}
 
@@ -731,7 +728,7 @@ int interface_up(struct thread *thread)
 
 	/* If no area assigned, return */
 	if (oi->area == NULL) {
-		zlog_debug(
+		zlog_warn(
 			"%s: Not scheduleing Hello for %s as there is no area assigned yet",
 			__func__, oi->interface->name);
 		return 0;
diff --git a/ospf6d/ospf6_intra.c b/ospf6d/ospf6_intra.c
index bf7c59b9e..c971c6180 100644
--- a/ospf6d/ospf6_intra.c
+++ b/ospf6d/ospf6_intra.c
@@ -289,9 +289,8 @@ int ospf6_router_lsa_originate(struct thread *thread)
 			if ((caddr_t)lsdesc
 			    == (caddr_t)router_lsa
 				       + sizeof(struct ospf6_router_lsa)) {
-				if (IS_OSPF6_DEBUG_ORIGINATE(ROUTER))
-					zlog_debug(
-						"Size limit setting for Router-LSA too short");
+				zlog_warn(
+					"Size limit setting for Router-LSA too short");
 				return 0;
 			}
 
diff --git a/ospf6d/ospf6_message.c b/ospf6d/ospf6_message.c
index 9a1d8b79b..1cf4585c9 100644
--- a/ospf6d/ospf6_message.c
+++ b/ospf6d/ospf6_message.c
@@ -442,34 +442,34 @@ static void ospf6_dbdesc_recv_master(struct ospf6_header *oh,
 		}
 
 		if (CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MSBIT)) {
-			if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR))
-				zlog_debug("Master/Slave bit mismatch");
+			zlog_warn(
+				"DbDesc recv: Master/Slave bit mismatch Nbr %s",
+				on->name);
 			thread_add_event(master, seqnumber_mismatch, on, 0,
 					 NULL);
 			return;
 		}
 
 		if (CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_IBIT)) {
-			if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR))
-				zlog_debug("Initialize bit mismatch");
+			zlog_warn("DbDesc recv: Initialize bit mismatch Nbr %s",
+				  on->name);
 			thread_add_event(master, seqnumber_mismatch, on, 0,
 					 NULL);
 			return;
 		}
 
 		if (memcmp(on->options, dbdesc->options, sizeof(on->options))) {
-			if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR))
-				zlog_debug("Option field mismatch");
+			zlog_warn("DbDesc recv: Option field mismatch Nbr %s",
+				  on->name);
 			thread_add_event(master, seqnumber_mismatch, on, 0,
 					 NULL);
 			return;
 		}
 
 		if (ntohl(dbdesc->seqnum) != on->dbdesc_seqnum) {
-			if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR))
-				zlog_debug(
-					"Sequence number mismatch (%#lx expected)",
-					(unsigned long)on->dbdesc_seqnum);
+			zlog_warn(
+				"DbDesc recv: Sequence number mismatch Nbr %s (%#lx expected)",
+				on->name, (unsigned long)on->dbdesc_seqnum);
 			thread_add_event(master, seqnumber_mismatch, on, 0,
 					 NULL);
 			return;
@@ -488,9 +488,9 @@ static void ospf6_dbdesc_recv_master(struct ospf6_header *oh,
 			return;
 		}
 
-		if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR))
-			zlog_debug("Not duplicate dbdesc in state %s",
-				   ospf6_neighbor_state_str[on->state]);
+		zlog_warn(
+			"DbDesc recv: Not duplicate dbdesc in state %s Nbr %s",
+			ospf6_neighbor_state_str[on->state], on->name);
 		thread_add_event(master, seqnumber_mismatch, on, 0, NULL);
 		return;
 
@@ -663,34 +663,36 @@ static void ospf6_dbdesc_recv_slave(struct ospf6_header *oh,
 		}
 
 		if (!CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_MSBIT)) {
-			if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR))
-				zlog_debug("Master/Slave bit mismatch");
+			zlog_warn(
+				"DbDesc slave recv: Master/Slave bit mismatch Nbr %s",
+				on->name);
 			thread_add_event(master, seqnumber_mismatch, on, 0,
 					 NULL);
 			return;
 		}
 
 		if (CHECK_FLAG(dbdesc->bits, OSPF6_DBDESC_IBIT)) {
-			if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR))
-				zlog_debug("Initialize bit mismatch");
+			zlog_warn(
+				"DbDesc slave recv: Initialize bit mismatch Nbr %s",
+				on->name);
 			thread_add_event(master, seqnumber_mismatch, on, 0,
 					 NULL);
 			return;
 		}
 
 		if (memcmp(on->options, dbdesc->options, sizeof(on->options))) {
-			if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR))
-				zlog_debug("Option field mismatch");
+			zlog_warn(
+				"DbDesc slave recv: Option field mismatch Nbr %s",
+				on->name);
 			thread_add_event(master, seqnumber_mismatch, on, 0,
 					 NULL);
 			return;
 		}
 
 		if (ntohl(dbdesc->seqnum) != on->dbdesc_seqnum + 1) {
-			if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR))
-				zlog_debug(
-					"Sequence number mismatch (%#lx expected)",
-					(unsigned long)on->dbdesc_seqnum + 1);
+			zlog_warn(
+				"DbDesc slave recv: Sequence number mismatch Nbr %s (%#lx expected)",
+				on->name, (unsigned long)on->dbdesc_seqnum + 1);
 			thread_add_event(master, seqnumber_mismatch, on, 0,
 					 NULL);
 			return;
@@ -712,9 +714,9 @@ static void ospf6_dbdesc_recv_slave(struct ospf6_header *oh,
 			return;
 		}
 
-		if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV_HDR))
-			zlog_debug("Not duplicate dbdesc in state %s",
-				   ospf6_neighbor_state_str[on->state]);
+		zlog_warn(
+			"DbDesc slave recv: Not duplicate dbdesc in state %s Nbr %s",
+			ospf6_neighbor_state_str[on->state], on->name);
 		thread_add_event(master, seqnumber_mismatch, on, 0, NULL);
 		return;
 
@@ -888,12 +890,10 @@ static void ospf6_lsreq_recv(struct in6_addr *src, struct in6_addr *dst,
 		/* Find database copy */
 		lsa = ospf6_lsdb_lookup(e->type, e->id, e->adv_router, lsdb);
 		if (lsa == NULL) {
-			if (IS_OSPF6_DEBUG_MESSAGE(oh->type, RECV)) {
-				zlog_debug(
-					"Can't find requested [%s Id:%pI4 Adv:%pI4]",
-					ospf6_lstype_name(e->type), &e->id,
-					&e->adv_router);
-			}
+			zlog_warn(
+				"Can't find requested lsa [%s Id:%pI4 Adv:%pI4] send badLSReq",
+				ospf6_lstype_name(e->type), &e->id,
+				&e->adv_router);
 			thread_add_event(master, bad_lsreq, on, 0, NULL);
 			return;
 		}
@@ -923,18 +923,14 @@ static unsigned ospf6_prefixes_examin(
 
 	while (length) {
 		if (length < OSPF6_PREFIX_MIN_SIZE) {
-			if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-						   RECV_HDR))
-				zlog_debug("%s: undersized IPv6 prefix header",
-					   __func__);
+			zlog_warn("%s: undersized IPv6 prefix header",
+				  __func__);
 			return MSG_NG;
 		}
 		/* safe to look deeper */
 		if (current->prefix_length > IPV6_MAX_BITLEN) {
-			if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-						   RECV_HDR))
-				zlog_debug("%s: invalid PrefixLength (%u bits)",
-					   __func__, current->prefix_length);
+			zlog_warn("%s: invalid PrefixLength (%u bits)",
+				  __func__, current->prefix_length);
 			return MSG_NG;
 		}
 		/* covers both fixed- and variable-sized fields */
@@ -942,10 +938,7 @@ static unsigned ospf6_prefixes_examin(
 			OSPF6_PREFIX_MIN_SIZE
 			+ OSPF6_PREFIX_SPACE(current->prefix_length);
 		if (requested_pfx_bytes > length) {
-			if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-						   RECV_HDR))
-				zlog_debug("%s: undersized IPv6 prefix",
-					   __func__);
+			zlog_warn("%s: undersized IPv6 prefix", __func__);
 			return MSG_NG;
 		}
 		/* next prefix */
@@ -955,11 +948,9 @@ static unsigned ospf6_prefixes_examin(
 		real_num_pfxs++;
 	}
 	if (real_num_pfxs != req_num_pfxs) {
-		if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-					   RECV_HDR))
-			zlog_debug(
-				"%s: IPv6 prefix number mismatch (%u required, %u real)",
-				__func__, req_num_pfxs, real_num_pfxs);
+		zlog_warn(
+			"%s: IPv6 prefix number mismatch (%u required, %u real)",
+			__func__, req_num_pfxs, real_num_pfxs);
 		return MSG_NG;
 	}
 	return MSG_OK;
@@ -988,10 +979,7 @@ static unsigned ospf6_lsa_examin(struct ospf6_lsa_header *lsah,
 	ltindex = lsatype & OSPF6_LSTYPE_FCODE_MASK;
 	if (ltindex < OSPF6_LSTYPE_SIZE && ospf6_lsa_minlen[ltindex]
 	    && lsalen < ospf6_lsa_minlen[ltindex] + OSPF6_LSA_HEADER_SIZE) {
-		if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-					   RECV_HDR))
-			zlog_debug("%s: undersized (%u B) LSA", __func__,
-				   lsalen);
+		zlog_warn("%s: undersized (%u B) LSA", __func__, lsalen);
 		return MSG_NG;
 	}
 	switch (lsatype) {
@@ -1001,11 +989,9 @@ static unsigned ospf6_lsa_examin(struct ospf6_lsa_header *lsah,
 		   by N>=0 interface descriptions. */
 		if ((lsalen - OSPF6_LSA_HEADER_SIZE - OSPF6_ROUTER_LSA_MIN_SIZE)
 		    % OSPF6_ROUTER_LSDESC_FIX_SIZE) {
-			if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-						   RECV_HDR))
-				zlog_debug(
-					"%s: interface description alignment error",
-					__func__);
+			zlog_warn(
+				"%s: Router LSA interface description alignment error",
+				__func__);
 			return MSG_NG;
 		}
 		break;
@@ -1015,11 +1001,9 @@ static unsigned ospf6_lsa_examin(struct ospf6_lsa_header *lsah,
 		if ((lsalen - OSPF6_LSA_HEADER_SIZE
 		     - OSPF6_NETWORK_LSA_MIN_SIZE)
 		    % OSPF6_NETWORK_LSDESC_FIX_SIZE) {
-			if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-						   RECV_HDR))
-				zlog_debug(
-					"%s: router description alignment error",
-					__func__);
+			zlog_warn(
+				"%s: Network LSA router description alignment error",
+				__func__);
 			return MSG_NG;
 		}
 		break;
@@ -1040,10 +1024,8 @@ static unsigned ospf6_lsa_examin(struct ospf6_lsa_header *lsah,
 		/* RFC5340 A.4.6, fixed-size LSA. */
 		if (lsalen
 		    > OSPF6_LSA_HEADER_SIZE + OSPF6_INTER_ROUTER_LSA_FIX_SIZE) {
-			if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-						   RECV_HDR))
-				zlog_debug("%s: oversized (%u B) LSA", __func__,
-					   lsalen);
+			zlog_warn("%s: Inter Router LSA oversized (%u B) LSA",
+				  __func__, lsalen);
 			return MSG_NG;
 		}
 		break;
@@ -1069,10 +1051,9 @@ static unsigned ospf6_lsa_examin(struct ospf6_lsa_header *lsah,
 		   IPv6
 		   prefix before ospf6_prefix_examin() confirms its sizing. */
 		if (exp_length + OSPF6_PREFIX_MIN_SIZE > lsalen) {
-			if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-						   RECV_HDR))
-				zlog_debug("%s: undersized (%u B) LSA header",
-					   __func__, lsalen);
+			zlog_warn(
+				"%s: AS External undersized (%u B) LSA header",
+				__func__, lsalen);
 			return MSG_NG;
 		}
 		/* forwarding address */
@@ -1088,10 +1069,9 @@ static unsigned ospf6_lsa_examin(struct ospf6_lsa_header *lsah,
 		   I.e.,
 		   this check does not include any IPv6 prefix fields. */
 		if (exp_length > lsalen) {
-			if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-						   RECV_HDR))
-				zlog_debug("%s: undersized (%u B) LSA header",
-					   __func__, lsalen);
+			zlog_warn(
+				"%s: AS External undersized (%u B) LSA header",
+				__func__, lsalen);
 			return MSG_NG;
 		}
 		/* The last call completely covers the remainder (IPv6 prefix).
@@ -1157,34 +1137,26 @@ ospf6_lsaseq_examin(struct ospf6_lsa_header *lsah, /* start of buffered data */
 	while (length) {
 		uint16_t lsalen;
 		if (length < OSPF6_LSA_HEADER_SIZE) {
-			if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-						   RECV_HDR))
-				zlog_debug(
-					"%s: undersized (%zu B) trailing (#%u) LSA header",
-					__func__, length, counted_lsas);
+			zlog_warn(
+				"%s: undersized (%zu B) trailing (#%u) LSA header",
+				__func__, length, counted_lsas);
 			return MSG_NG;
 		}
 		/* save on ntohs() calls here and in the LSA validator */
 		lsalen = OSPF6_LSA_SIZE(lsah);
 		if (lsalen < OSPF6_LSA_HEADER_SIZE) {
-			if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-						   RECV_HDR))
-				zlog_debug(
-					"%s: malformed LSA header #%u, declared length is %u B",
-					__func__, counted_lsas, lsalen);
+			zlog_warn(
+				"%s: malformed LSA header #%u, declared length is %u B",
+				__func__, counted_lsas, lsalen);
 			return MSG_NG;
 		}
 		if (headeronly) {
 			/* less checks here and in ospf6_lsa_examin() */
 			if (MSG_OK != ospf6_lsa_examin(lsah, lsalen, 1)) {
-				if (IS_OSPF6_DEBUG_MESSAGE(
-					    OSPF6_MESSAGE_TYPE_UNKNOWN,
-					    RECV_HDR))
-					zlog_debug(
-						"%s: anomaly in header-only %s LSA #%u",
-						__func__,
-						ospf6_lstype_name(lsah->type),
-						counted_lsas);
+				zlog_warn(
+					"%s: anomaly in header-only %s LSA #%u",
+					__func__, ospf6_lstype_name(lsah->type),
+					counted_lsas);
 				return MSG_NG;
 			}
 			lsah = (struct ospf6_lsa_header
@@ -1195,25 +1167,16 @@ ospf6_lsaseq_examin(struct ospf6_lsa_header *lsah, /* start of buffered data */
 			/* make sure the input buffer is deep enough before
 			 * further checks */
 			if (lsalen > length) {
-				if (IS_OSPF6_DEBUG_MESSAGE(
-					    OSPF6_MESSAGE_TYPE_UNKNOWN,
-					    RECV_HDR))
-					zlog_debug(
-						"%s: anomaly in %s LSA #%u: declared length is %u B, buffered length is %zu B",
-						__func__,
-						ospf6_lstype_name(lsah->type),
-						counted_lsas, lsalen, length);
+				zlog_warn(
+					"%s: anomaly in %s LSA #%u: declared length is %u B, buffered length is %zu B",
+					__func__, ospf6_lstype_name(lsah->type),
+					counted_lsas, lsalen, length);
 				return MSG_NG;
 			}
 			if (MSG_OK != ospf6_lsa_examin(lsah, lsalen, 0)) {
-				if (IS_OSPF6_DEBUG_MESSAGE(
-					    OSPF6_MESSAGE_TYPE_UNKNOWN,
-					    RECV_HDR))
-					zlog_debug(
-						"%s: anomaly in %s LSA #%u",
-						__func__,
-						ospf6_lstype_name(lsah->type),
-						counted_lsas);
+				zlog_warn("%s: anomaly in %s LSA #%u", __func__,
+					  ospf6_lstype_name(lsah->type),
+					  counted_lsas);
 				return MSG_NG;
 			}
 			lsah = (struct ospf6_lsa_header *)((caddr_t)lsah
@@ -1224,11 +1187,8 @@ ospf6_lsaseq_examin(struct ospf6_lsa_header *lsah, /* start of buffered data */
 	}
 
 	if (declared_num_lsas && counted_lsas != declared_num_lsas) {
-		if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-					   RECV_HDR))
-			zlog_debug(
-				"%s: #LSAs declared (%u) does not match actual (%u)",
-				__func__, declared_num_lsas, counted_lsas);
+		zlog_warn("%s: #LSAs declared (%u) does not match actual (%u)",
+			  __func__, declared_num_lsas, counted_lsas);
 		return MSG_NG;
 	}
 	return MSG_OK;
@@ -1243,41 +1203,31 @@ static unsigned ospf6_packet_examin(struct ospf6_header *oh,
 
 	/* length, 1st approximation */
 	if (bytesonwire < OSPF6_HEADER_SIZE) {
-		if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-					   RECV_HDR))
-			zlog_debug("%s: undersized (%u B) packet", __func__,
-				   bytesonwire);
+		zlog_warn("%s: undersized (%u B) packet", __func__,
+			  bytesonwire);
 		return MSG_NG;
 	}
 	/* Now it is safe to access header fields. */
 	if (bytesonwire != ntohs(oh->length)) {
-		if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-					   RECV_HDR))
-			zlog_debug(
-				"%s: %s packet length error (%u real, %u declared)",
-				__func__, lookup_msg(ospf6_message_type_str,
-						     oh->type, NULL),
-				bytesonwire, ntohs(oh->length));
+		zlog_warn("%s: %s packet length error (%u real, %u declared)",
+			  __func__,
+			  lookup_msg(ospf6_message_type_str, oh->type, NULL),
+			  bytesonwire, ntohs(oh->length));
 		return MSG_NG;
 	}
 	/* version check */
 	if (oh->version != OSPFV3_VERSION) {
-		if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-					   RECV_HDR))
-			zlog_debug("%s: invalid (%u) protocol version",
-				   __func__, oh->version);
+		zlog_warn("%s: invalid (%u) protocol version", __func__,
+			  oh->version);
 		return MSG_NG;
 	}
 	/* length, 2nd approximation */
 	if (oh->type < OSPF6_MESSAGE_TYPE_ALL && ospf6_packet_minlen[oh->type]
 	    && bytesonwire
 		       < OSPF6_HEADER_SIZE + ospf6_packet_minlen[oh->type]) {
-		if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-					   RECV_HDR))
-			zlog_debug("%s: undersized (%u B) %s packet", __func__,
-				   bytesonwire,
-				   lookup_msg(ospf6_message_type_str, oh->type,
-					      NULL));
+		zlog_warn("%s: undersized (%u B) %s packet", __func__,
+			  bytesonwire,
+			  lookup_msg(ospf6_message_type_str, oh->type, NULL));
 		return MSG_NG;
 	}
 	/* type-specific deeper validation */
@@ -1290,11 +1240,8 @@ static unsigned ospf6_packet_examin(struct ospf6_header *oh,
 		    == (bytesonwire - OSPF6_HEADER_SIZE - OSPF6_HELLO_MIN_SIZE)
 			       % 4)
 			return MSG_OK;
-		if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-					   RECV_HDR))
-			zlog_debug("%s: alignment error in %s packet", __func__,
-				   lookup_msg(ospf6_message_type_str, oh->type,
-					      NULL));
+		zlog_warn("%s: alignment error in %s packet", __func__,
+			  lookup_msg(ospf6_message_type_str, oh->type, NULL));
 		return MSG_NG;
 	case OSPF6_MESSAGE_TYPE_DBDESC:
 		/* RFC5340 A.3.3, packet header + OSPF6_DB_DESC_MIN_SIZE bytes
@@ -1314,11 +1261,8 @@ static unsigned ospf6_packet_examin(struct ospf6_header *oh,
 		    == (bytesonwire - OSPF6_HEADER_SIZE - OSPF6_LS_REQ_MIN_SIZE)
 			       % OSPF6_LSREQ_LSDESC_FIX_SIZE)
 			return MSG_OK;
-		if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-					   RECV_HDR))
-			zlog_debug("%s: alignment error in %s packet", __func__,
-				   lookup_msg(ospf6_message_type_str, oh->type,
-					      NULL));
+		zlog_warn("%s: alignment error in %s packet", __func__,
+			  lookup_msg(ospf6_message_type_str, oh->type, NULL));
 		return MSG_NG;
 	case OSPF6_MESSAGE_TYPE_LSUPDATE:
 		/* RFC5340 A.3.5, packet header + OSPF6_LS_UPD_MIN_SIZE bytes
@@ -1343,16 +1287,12 @@ static unsigned ospf6_packet_examin(struct ospf6_header *oh,
 			1, 0);
 		break;
 	default:
-		if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN,
-					   RECV_HDR))
-			zlog_debug("%s: invalid (%u) message type", __func__,
-				   oh->type);
+		zlog_warn("%s: invalid (%u) message type", __func__, oh->type);
 		return MSG_NG;
 	}
-	if (test != MSG_OK
-	    && IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, RECV_HDR))
-		zlog_debug("%s: anomaly in %s packet", __func__,
-			   lookup_msg(ospf6_message_type_str, oh->type, NULL));
+	if (test != MSG_OK)
+		zlog_warn("%s: anomaly in %s packet", __func__,
+			  lookup_msg(ospf6_message_type_str, oh->type, NULL));
 	return test;
 }
 
diff --git a/ospf6d/ospf6_spf.c b/ospf6d/ospf6_spf.c
index f995dd939..032484e28 100644
--- a/ospf6d/ospf6_spf.c
+++ b/ospf6d/ospf6_spf.c
@@ -284,9 +284,7 @@ static void ospf6_nexthop_calc(struct ospf6_vertex *w, struct ospf6_vertex *v,
 
 	oi = ospf6_interface_lookup_by_ifindex(ifindex, ospf6->vrf_id);
 	if (oi == NULL) {
-		if (IS_OSPF6_DEBUG_SPF(PROCESS))
-			zlog_debug("Can't find interface in SPF: ifindex %d",
-				   ifindex);
+		zlog_warn("Can't find interface in SPF: ifindex %d", ifindex);
 		return;
 	}
 
@@ -475,9 +473,7 @@ void ospf6_spf_calculation(uint32_t router_id,
 	/* construct root vertex */
 	lsa = ospf6_create_single_router_lsa(oa, oa->lsdb_self, router_id);
 	if (lsa == NULL) {
-		if (IS_OSPF6_DEBUG_SPF(PROCESS))
-			zlog_debug("%s: No router LSA for area %s", __func__,
-				   oa->name);
+		zlog_warn("%s: No router LSA for area %s", __func__, oa->name);
 		return;
 	}