fixup lookup trouble for parent-child domains on the first query.

git-svn-id: file:///svn/unbound/trunk@1960 be551aaa-1e26-0410-a405-d3ace91eadb9

iterator/iterator.c

@@ -195,6 +195,12 @@ error_supers(struct module_qstate* qstate, int id, struct module_qstate* super)
 				delegpt_log(VERB_ALGO, super_iq->dp);
 			log_assert(0);
 			return;
+		} else {
+			/* see if the failure did get (parent-lame) info */
+			if(!cache_fill_missing(super->env, 
+				super_iq->qchase.qclass, super->region, 
+				super_iq->dp))
+				log_err("out of memory adding missing");
 		}
 		dpns->resolved = 1; /* mark as failed */
 		super_iq->num_target_queries--; 

services/cache/dns.c

@@ -248,8 +248,6 @@ cache_fill_missing(struct module_env* env, uint16_t qclass,
 	struct ub_packed_rrset_key* akey;
 	uint32_t now = *env->now;
 	for(ns = dp->nslist; ns; ns = ns->next) {
-		if(ns->resolved)
-			continue;
 		akey = rrset_cache_lookup(env->rrset_cache, ns->name, 
 			ns->namelen, LDNS_RR_TYPE_A, qclass, 0, now, 0);
 		if(akey) {