linux-kernel - Re: [regression] 2.6.37+ commit 0363466866d9.... breaks tcp ipv6

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Message-ID: <AANLkTinejKw0pY5HncB2e0ocjqYuCwTBUwd2xkroWu+E@mail.gmail.com>
Date:	Tue, 18 Jan 2011 12:06:53 -0800
From:	Jesse Gross <jesse@...ira.com>
To:	Hans de Bruin <jmdebruin@...net.nl>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>
Subject: Re: [regression] 2.6.37+ commit 0363466866d9.... breaks tcp ipv6

On Tue, Jan 18, 2011 at 11:52 AM, Hans de Bruin <jmdebruin@...net.nl> wrote:
> On 01/16/2011 09:24 PM, Hans de Bruin wrote:
>>
>> After last nights compile i lost the possibility to connect to ssh and
>> http over ipv6. The connection stops at syn_sent. connections to my
>> machine end in syn_recv. ping6 still works.
>>
>
> The bisect ended in:
>
> 0363466866d901fbc658f4e63dd61e7cc93dd0af is the first bad commit
> commit 0363466866d901fbc658f4e63dd61e7cc93dd0af
> Author: Jesse Gross <jesse@...ira.com>
> Date:   Sun Jan 9 06:23:35 2011 +0000
>
>    net offloading: Convert checksums to use centrally computed features.
>
>    In order to compute the features for other offloads (primarily
>    scatter/gather), we need to first check the ability of the NIC to
>    offload the checksum for the packet.  Since we have already computed
>    this, we can directly use the result instead of figuring it out
>    again.
>
>    Signed-off-by: Jesse Gross <jesse@...ira.com>
>    Signed-off-by: David S. Miller <davem@...emloft.net>
>
>
> ssh ::1  still works. And since dns still works I guess udp is not affected.
> My nic is a:
>
> 09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5752 Gigabit
> Ethernet PCI Express (rev 02)

Are you using vlans?  If so, can you please test this patch?
http://patchwork.ozlabs.org/patch/79264/
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