netdev - Re: TCP-MD5 checksum failure on x86

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Message-ID: <1273504693.2221.17.camel@edumazet-laptop>
Date:	Mon, 10 May 2010 17:18:13 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Bijay Singh <Bijay.Singh@...vus.com>
Cc:	Stephen Hemminger <shemminger@...tta.com>,
	David Miller <davem@...emloft.net>,
	"<bhaskie@...il.com>" <bhaskie@...il.com>,
	"<bhutchings@...arflare.com>" <bhutchings@...arflare.com>,
	"<netdev@...r.kernel.org>" <netdev@...r.kernel.org>
Subject: Re: TCP-MD5 checksum failure on x86_64 SMP

Le lundi 10 mai 2010 à 14:55 +0000, Bijay Singh a écrit :
> Hi,
> I had noticed the corruption in the context and actually did what is mentioned.
> 
> I allocated the context on the stack and plugged in the md5.c functions. I was able to temporarily solve the problem, all this before I got a response on this thread.
> 
> But now I have seeing another problem, when i change the MTU on the interface from 1500 to 4470 none of the message from the peer get thru and I get hash failed message. I am wondering if this is another bug getting hit in this scenario.

Thats very fine, but you mix very different problems.

Step by step resolution is required, and clean patches too, because
plugging md5.c functions is not an option for stable series :)

Obviously, nobody seriously used TCP-MD5 on linux, but you...



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