zero size buf in output

[Maxim Dounin]

Hello!

On Fri, May 29, 2015 at 11:21:28AM +0100, Carlos Eduardo Ferreira Rodrigues wrote:

> Hi,
> 
> Another issue I started seeing after moving to 1.8.0 is messages like these in the error log:
> 
>     2015/05/29 09:29:40 [alert] 16116#0: *82677257 zero size buf in output t:0 r:0 f:0 00007FF33C18F6D0 00007FF33C18F6D0-00007FF33C19F2B6 0000000000000000 0-0 while sending to client [...]
> 
> I've seen a mention of this as having been fixed a few versions ago, but it seems to have returned.

The message indicate that something is incorrectly created a 
buffer in the output chain.  If you are able to reproduce this 
without 3rd party modules, please provide more details, see hints 
here:

http://wiki.nginx.org/Debugging

If this only appears with 3rd party modules, it may be better idea 
to find out which module causes this and report this to the module 
author.

-- 
Maxim Dounin
http://nginx.org/