All of lore.kernel.org
 help / color / mirror / Atom feed
From: Stephen Hemminger <shemminger@vyatta.com>
To: Yan Burman <yanb@mellanox.com>
Cc: <netdev@vger.kernel.org>
Subject: Re: Lockdep warning in vxlan
Date: Thu, 20 Dec 2012 08:34:36 -0800	[thread overview]
Message-ID: <20121220083436.0c7fc33f@nehalam.linuxnetplumber.net> (raw)
In-Reply-To: <50D31A00.7060905@mellanox.com>

On Thu, 20 Dec 2012 16:00:32 +0200
Yan Burman <yanb@mellanox.com> wrote:

> Hi.
> 
> When working with vxlan from current net-next, I got a lockdep warning 
> (below).
> It seems to happen when I have host B pinging host A and while the pings 
> continue,
> I do "ip link del" on the vxlan interface on host A. The lockdep warning 
> is on host A.
> Tell me if you need some more info.
> 

Looks like the case of nested ARP requests, the initial request is coming
from neigh_timer (ARP retransmit), but inside neigh_probe the lock
is dropped?

  reply	other threads:[~2012-12-20 16:35 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-20 14:00 Lockdep warning in vxlan Yan Burman
2012-12-20 16:34 ` Stephen Hemminger [this message]
2012-12-20 18:16   ` Eric Dumazet
2012-12-20 18:22     ` Stephen Hemminger
2012-12-23  9:41     ` Yan Burman

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=20121220083436.0c7fc33f@nehalam.linuxnetplumber.net \
    --to=shemminger@vyatta.com \
    --cc=netdev@vger.kernel.org \
    --cc=yanb@mellanox.com \
    /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.