netdev - Re: [BUG] ipv6 and TSO on GRE is broken

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Message-ID: <CALnjE+qn8oaczOu0rRwcxhdmhaPSzVJgdhQ7un6yQC7og=fknQ@mail.gmail.com>
Date:	Thu, 2 May 2013 19:17:57 -0700
From:	Pravin Shelar <pshelar@...ira.com>
To:	Berge Schwebs Bjørlo <berge@...vini.no>
Cc:	Eric Dumazet <eric.dumazet@...il.com>,
	netdev <netdev@...r.kernel.org>,
	"Steinar H. Gunderson" <sesse@...gle.com>
Subject: Re: [BUG] ipv6 and TSO on GRE is broken

On Thu, May 2, 2013 at 1:32 AM, Berge Schwebs Bjørlo <berge@...vini.no> wrote:
> On Thu, May 02, 2013 at 01:00:54AM -0700, Pravin Shelar wrote:
>> On Thu, May 2, 2013 at 12:02 AM, Pravin Shelar <pshelar@...ira.com> wrote:
>>> I forgot to add gre gso handler to inet6 offloads list.
>>>
>>> I will send out patch soon.
>> nevermind, I guess you were talking abt ipv6 over gre-ipv4 device, I will
>> check the code.
>
> I'm not sure if we're talking about the same issue, but I'm experiencing
> massive packet drops with outbound IPv6 traffic with a GREv4 tunnel with IPv6
> traffic on the inside. Inbound traffic seems fine, and IPv4 inside the tunnel
> is fine in both directions.
>
> First observed when upgrading to 3.9 the other day. 3.8 was fine. git bisect
> and a kernel-recompile-reboot-dance points to commit
> 68c331631143f5f039baac99a650e0b9e1ea02b6 as the culprit.
>
Thanks,
I posted fix on netdev.
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