Date: Tue, 19 Jan 2016 16:41:08 +0100 From: "W.C.A. Wijngaards via Unbound-users" <unbound-users at unbound.net> There was already a similar for for permission denied spammed when the network was down. But your system returns a different errno in that situation. I have squelched the errno EADDRNOTAVAIL (Cannot assign requested address): it is hidden when verbosity is low, visible if you increase the verbosity. That hopefully keeps Philippe's logs clean. Thanks! That only partially addresses the problem, though: while unbound will no longer clutter logs as long as the network is down, it will still eat CPU -- and it will do so silently now, unless verbose logs are enabled. It seems to me that it would be better if Unbound did not busy-wait for the network to come back up, or for a change in whatever condition is causing the spew. However, I don't know the code well enough to suggest any particular changes to accomplish this.