netdev - Re: [PATCH net v2] ipv6: Handle race in addrconf_dad

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Message-ID: <0a2a936a-9b20-be61-2301-dfe83e41e605@gmail.com>
Date:   Wed, 2 Oct 2019 20:42:28 -0600
From:   David Ahern <dsahern@...il.com>
To:     Eric Dumazet <erdnetdev@...il.com>,
        Eric Dumazet <eric.dumazet@...il.com>,
        David Ahern <dsahern@...nel.org>, davem@...emloft.net,
        jakub.kicinski@...ronome.com
Cc:     netdev@...r.kernel.org, rajendra.dendukuri@...adcom.com
Subject: Re: [PATCH net v2] ipv6: Handle race in addrconf_dad_work

On 10/2/19 6:36 PM, Eric Dumazet wrote:
> 
> 
> On 10/2/19 5:10 PM, David Ahern wrote:
>> On 10/2/19 4:36 PM, Eric Dumazet wrote:
>>> This might be related to a use of a bonding device, with a mlx4 slave.
>>>
>>
>> does it only happen with bonds?
> 
> All my hosts have bonds, some are just fine with your patch, but others are not.

I have a setup now where the bond is reliably showing tentative for the
address. Something to use to debug this weird little side effect.