Re: CVS commit: src/sys

[Roy Marples <roy%marples.name@localhost>]

On 11/05/2018 12:24, Robert Elz wrote:
>      Date:        Fri, 11 May 2018 12:03:19 +0100
>      From:        Roy Marples <roy%marples.name@localhost>
>      Message-ID:  <d85d989a-f63f-6228-6250-bc6b058805a2%marples.name@localhost>
>
>    | However, the normal amount of noise generated in his environment is no
>    | longer generating any overflow messages so his problem report is indeed
>    | fixed.
>
> The PR was "loss of IPv6 address with DHCP in netbsd-8" - the messages
> were incidental (indicated the cause of the problem perhaps, but were not
> the problem complained of - if there had not been the other problem, the
> real problem, the messages would probably have never been noticed).

The address could also have been lost due to dhcpcd not seeing the RA 
the IPv6 router sent and thus timing out.
This could be due to the ICMP6 receive socket overflowing and thus the 
kernel discards the RA.

The cvs commit increases the default size of the ICMP6 receive socket, 
so it's not incidental at all.

Roy