Subject: Re: [Patch net-next] vxlan: do real refcnt for vn_sock

From: Cong Wang <[email-masked]>
Date: Fri, 31 May 2013 10:55:45 +0800

On Wed, 2013-05-29 at 16:39 +0800, Cong Wang wrote:
> On Tue, 2013-05-28 at 21:41 -0700, Stephen Hemminger wrote:
> > Why not just fix the requirement to drop rtnl when calling igmp.
> > The code comes out cleaner and safer as well.
> 
> Besides you forget to lock the socket before calling _ip_mc_join_group()
> (and also the order is very important too), your patch doesn't fix the
> problem I met. The full backtrace is below:
> 

Hi, Stephen,

Do you think my patch is an easier solution? It at least fixes the
crash, while your patch doesn't. :)