KQueue: 2 or more IPv6 listen ports + HUPing causes repeated log spam

[Maxim Dounin]

Hello!

On Wed, Jul 07, 2010 at 11:28:29AM -0400, WolfSage wrote:

> Sorry, I forgot to mention the nginx versions. 
> 
> This was tested with nginx stable all the way from versions 0.6.39 to
> latest stable 0.7.67.
> 
> I'd like to stay in the stable branch rather than run the development
> branch.

There are number of ipv6-related fixes in 0.8.* branch, including 
the following:

(0.8.43)

    *) Bugfix: nginx might close IPv6 listen socket during 
       reconfiguration.

(0.8.39)

    *) Bugfix: listen unix domain and IPv6 sockets did not inherit while 
       online upgrade.

You are clearly hitting the bug fixed in 0.8.43.  Patch is 
trivial and should apply cleanly to 0.7.*:

http://mdounin.ru/hg/nginx-vendor-current/diff/c456a023113c/src/core/ngx_cycle.c

Though I would recommend to switch to 0.8.* branch instead.

Maxim Dounin