Child said getnameinfo = -11 System error

[Hugues Alary]

Hi there,

Using Varnish 4.0.3, I've noticed my logs are spammed with these error
messages.

Oct 12 11:20:04 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error
Oct 12 11:20:29 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error
Oct 12 11:20:36 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error
Oct 12 11:20:37 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error
Oct 12 11:20:39 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error
Oct 12 11:20:45 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error
Oct 12 11:20:45 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error
Oct 12 11:20:51 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error
Oct 12 11:20:55 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error
Oct 12 11:20:56 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error
Oct 12 11:20:56 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error
Oct 12 11:21:04 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error
Oct 12 11:21:05 halflife varnishd[20488]: Child (20492) said getnameinfo =
-11 System error

Any idea what it could be?

Some googling makes me think it's DNS related, but I can't confirm and my
DNS seem to be working fine. (I'm using google's 8.8.8.8 servers)

Thanks!
-Hugues
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