This seems to have come along with the upgrade of BIND from
9.9.7-P3 to 9.10.3-P4, a diff of
external/bsd/bind/dist/bin/named/query.c shows:
@@ -7062,6 +7770,10 @@ query_find(ns_client_t *client, dns_fetc
/*
* Something has gone wrong.
*/
+ snprintf(errmsg, sizeof(errmsg) - 1,
+ "query_find: unexpected error after resuming: %s",
+ isc_result_totext(result));
+ CTRACE(ISC_LOG_ERROR, errmsg);
QUERY_ERROR(DNS_R_SERVFAIL);
goto cleanup;
}
Now, it's not clear that this message contributes much in the
form of clarity, so if the log message is sufficiently annoying
you may want to #if 0 its generation and build + install your own
variant.