The 'not sending SecIdent Packet' it's because the SecIdent packet must not be sent to a client till we know his SecIdent capabilities. Those clients have either no secident or we didn't receive the features tag yet.
Error 7 is WOULD_BLOCK, and PLEASE, next time use forum search as it's advised everywhere on this forum. Keeps developers developing instead of replying same questions over and over again.
And of course, you're receiving that messages because you have verbose enabled.
P.S: Appart from developers, there's a lot of testers, helpers, and generally databases -with-nickname that can reply this kind of questions. This time you met me, but next time you don't need to ask for a developer. Either a developer will reply or a helper, and the official helpers are perfectly allowed to reply such questions.