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Re: bin/51568 (base dhcpd dumps core in a CARP setup)
The following reply was made to PR bin/51568; it has been noted by GNATS.
From: Frank Kardel <kardel%netbsd.org@localhost>
Subject: Re: bin/51568 (base dhcpd dumps core in a CARP setup)
Date: Thu, 22 Jul 2021 09:56:01 +0200
On 07/22/21 09:05, David Holland wrote:
> On Wed, Jul 21, 2021 at 12:25:01PM +0000, Frank Kardel wrote:
> > Well, I do have some carp setups - works for IPv4 only, is likely to
> > lock up when configuring IPv4 and IPv6 on the carp device.
> > The lockup still needs to be investigated.
> Is there a PR for that? If not, please file one :-)
Sure, once I am able to collect some information about it instead of
reciting my memory from a year ago.
The pattern is like this:
A and B run.
A is master in 4 crap instances.
B ist backup on those instances
A goes down
B becomes master on those 4 instances
A comes up and gets stuck forever in "waiting for DAD to complete"
Unfortunatly this happens on our gateway routers to testing time is
I can recreate that elsewhere but not on short notice.
> > As for the dhcpd aborting. I have seen that also. It had nothing to do
> > with carp other that when you
> > start to use carp you are likely to use dhcpd fail over. I moved to
> > pkgsrc-isc_dhcpd and that worked.
> > Thus at that time dhcpd in the base had a problem. the pkgsrc version
> > (same release) was fine.
> > I haven't checked todays state of affairs though.
> Does this warrant reopening this PR or would it be better to generate
> a new one?
Probably a new one to get rid of the carp association.
> David A. Holland
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