netdev - Re: [PATCH v2 net-next 2/4] net: vrf: call netdev_lockdep_set

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Message-Id: <0231E33E-1C1A-4B32-992C-9BFC7470E7E0@cumulusnetworks.com>
Date:	Wed, 8 Jun 2016 22:35:52 -0600
From:	David Ahern <dsa@...ulusnetworks.com>
To:	Eric Dumazet <edumazet@...gle.com>
Cc:	"David S . Miller" <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: [PATCH v2 net-next 2/4] net: vrf: call netdev_lockdep_set_classes()


> On Jun 8, 2016, at 10:01 PM, Eric Dumazet <edumazet@...gle.com> wrote:
> 
>> On Wed, Jun 8, 2016 at 8:41 PM, David Ahern <dsa@...ulusnetworks.com> wrote:
>>> On 6/8/16 9:29 PM, Eric Dumazet wrote:
>>> 
>>> In case a qdisc is used on a vrf device, we need to use different
>>> lockdep classes to avoid false positives.
>>> 
>>> Fixes: f9eb8aea2a1e ("net_sched: transform qdisc running bit into a
>>> seqcount")
>>> Reported-by: David Ahern <dsa@...ulusnetworks.com>
>>> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
>> 
>> 
>> same result with this patch set.
> 
> Are you stacking multiple vrf devices ?

No. You can also look at ipvlan. It shows the same trace. For me it is 3 commands that create the vrf, add eth1, run ping.