From: Daniel Borkmann <dborkman@redhat.com>
To: David Laight <David.Laight@ACULAB.COM>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>, dcbw@redhat.com
Subject: Re: Does NetworkManager kill IPv6 connections?
Date: Thu, 04 Sep 2014 19:43:45 +0200 [thread overview]
Message-ID: <5408A4D1.9050606@redhat.com> (raw)
In-Reply-To: <063D6719AE5E284EB5DD2968C1650D6D174876CB@AcuExch.aculab.com>
[ Cc'ing Dan ]
On 09/04/2014 04:47 PM, David Laight wrote:
> I was running a overnight test that failed because an (almost idle) IPv6 connection
> unexpectedly disconnected.
> 30 seconds before the disconnect syslog contains (retyped):
> NetworkManager[pid]: <info> policy set 'Wired connection 2' (eth0) as default for IPv6 routing and DNS.
> The same message appeared exactly 70 minutes earlier - with no ill effect.
> A second connection between the same pair if addresses (carrying a lot of traffic)
> was unaffected.
>
> Any idea what/why NetworkManager is doing?
> (Yes I know it is userspace, but it seems to be breaking the kernel....)
>
> The system is an ubuntu 13.04 desktop (3.8.0-19 kernel), that recent, but
> newer than the ones a lot of our customers use.
>
> I can rerun the test, but don't know what to look for.
> 'eth0' is the only ethernet interface in the system that is actually
> connected to a network.
>
> Some indications of where to look would be appreciated.
>
> David
next prev parent reply other threads:[~2014-09-04 17:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-04 14:47 Does NetworkManager kill IPv6 connections? David Laight
2014-09-04 17:43 ` Daniel Borkmann [this message]
2014-09-04 18:17 ` Dan Williams
2014-09-05 14:18 ` David Laight
2014-09-05 18:42 ` Dan Williams
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=5408A4D1.9050606@redhat.com \
--to=dborkman@redhat.com \
--cc=David.Laight@ACULAB.COM \
--cc=dcbw@redhat.com \
--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.