All of lore.kernel.org
 help / color / mirror / Atom feed
From: Flavio Leitner <fbl@redhat.com>
To: Herbert Xu <herbert@gondor.hengli.com.au>
Cc: netdev <netdev@vger.kernel.org>, David Miller <davem@davemloft.net>
Subject: Re: restoring IP multicast addresses when restarting the interface.
Date: Tue, 24 Apr 2012 15:30:23 -0300	[thread overview]
Message-ID: <20120424153023.0913956e@asterix.rh> (raw)
In-Reply-To: <20120423121425.GA29883@gondor.apana.org.au>

On Mon, 23 Apr 2012 22:14:25 +1000
Herbert Xu <herbert@gondor.hengli.com.au> wrote:

> On Fri, Apr 20, 2012 at 09:25:33PM -0300, Flavio Leitner wrote:
> >
> > Although the new behavior seems nice and save some user space
> > work, I think it was unintentional and likely to be a bug.
> > 
> > What you guys think?
> 
> Are you talking about multicast subscriptions on the interface?
 
Yes.

> I don't see why they should disappear when the interface goes
> down and then comes back up since these ultimately come from
> application sockets which continue to exist after a down/up.

Yeah, but that's not how things used to work before, so my
question is if the kernel should be responsible for keeping
the subscription or the application.

If the admin puts down the interface and remove the module,
for instance, then the multicast subscription is gone.
Should the application monitor for that then?

David? Any thoughts?

thanks,
fbl

  reply	other threads:[~2012-04-24 18:30 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-21  0:25 restoring IP multicast addresses when restarting the interface Flavio Leitner
2012-04-23 12:14 ` Herbert Xu
2012-04-24 18:30   ` Flavio Leitner [this message]
2012-04-24 21:00     ` David Miller
2012-04-24 21:28       ` David Stevens
2012-04-24 22:19         ` Flavio Leitner

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20120424153023.0913956e@asterix.rh \
    --to=fbl@redhat.com \
    --cc=davem@davemloft.net \
    --cc=herbert@gondor.hengli.com.au \
    --cc=netdev@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.