Re: [PATCH] ip6_offload: check segs for NULL in ipv6_gso_segment.

From: Artem Savkov
Date: Fri Dec 02 2016 - 06:57:37 EST


On Thu, Dec 01, 2016 at 09:47:17PM -0500, Don Bowman wrote:
> I have been having this problem (4.9rc6).
> I applied this patch.
> I still have the problem.
>
> My stack trace (attached as image, i did not get it in text) is:
>
> ipv6_gso_segment
> skb_mac_gso_segment
> __skb_gso_segment
> validate_xmit_skb
> sch_direct_xmit
> __dev_queue_xmit
> macvlan_start
>
> ..
>
> I think the macvlan is important (it does not seem to occur on my VM
> that are not macvtap).

I don't see any way that the same problem may get reproduced in
ipv6_gso_segment with that patch applied, so this must be a different
issue.

--
Regards,
Artem