netdev - Re: [PATCH 1/4] ipv4: Fix pmtu propagating

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Message-Id: <20111019.153208.1743995025598236810.davem@davemloft.net>
Date:	Wed, 19 Oct 2011 15:32:08 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	gaofeng@...fujitsu.com
Cc:	steffen.klassert@...unet.com, netdev@...r.kernel.org
Subject: Re: [PATCH 1/4] ipv4: Fix pmtu propagating

From: Gao feng <gaofeng@...fujitsu.com>
Date: Wed, 19 Oct 2011 17:07:50 +0800

> 2011.10.17 20:18, Steffen Klassert wrote:
>> On Fri, Oct 14, 2011 at 07:54:06AM +0200, Steffen Klassert wrote:
>>> On Thu, Oct 13, 2011 at 01:58:08PM -0400, David Miller wrote:
>>>>
>>>> Please find out exactly why dst->obsolete is non-zero on a freshly
>>>> looked up route.  It's unexpected.
>>>
>>> Hm, on a slow path route lookup e.g. __mkroute_output() calls
>>> rt_dst_alloc() which initializes dst->obsolete to -1.
>> 
>> Just a follow up:
>> git commit d11a4dc18 (ipv4: check rt_genid in dst_check)
>> changed the initialization value of dst->obsolete from
>> 0 to -1.
>> --
> 
> Anybody give any suggestion?

I'm really busy but will look at this soon.
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