netdev - Re: regression when connecting to ipv6 localhost

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Message-ID: <1350300302.22442.25.camel@joe-AO722>
Date:	Mon, 15 Oct 2012 04:25:02 -0700
From:	Joe Perches <joe@...ches.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Jan Hinnerk Stosch <janhinnerk.stosch@...il.com>,
	netdev@...r.kernel.org
Subject: Re: regression when connecting to ipv6 localhost

On Mon, 2012-10-15 at 09:39 +0200, Eric Dumazet wrote:
> On Mon, 2012-10-15 at 00:14 -0700, Joe Perches wrote:
> > On Mon, 2012-10-15 at 07:42 +0200, Eric Dumazet wrote:
> > > So ntpd doesnt listen on ntp messages sent on ::1

> You can have a valid patch that uncover a bug in an application, it
> happens everyday.

<shrug> you can have a behavior that important applications
rely on and not be able to change the kernel because of it.

It looks more like a recently introduced app defect though.

> That would be really awesome, given Jan is not a kernel developer, we
> cannot really ask him to do this himself.

Jan's using a newer version of ntp than you are.
https://bugs.archlinux.org/task/31775
ntp 4.2.6.p5-11

Perhaps the defect was introduced in the ntp code with
this change:

http://bk.ntp.org/ntp-stable/lib/isc/unix/interfaceiter.c?PAGE=diffs&REV=4e12bf8dJoMBgRoYzI9851nTqVBhgQ



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