netdev - Re: PROBLEM: IPv6 TCP-Connections resetting

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Message-ID: <5160691E.2080105@tetja.de>
Date:	Sat, 06 Apr 2013 20:27:42 +0200
From:	Tetja Rediske <tetja@...ja.de>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	christoph.paasch@...ouvain.be,
	Hannes Frederic Sowa <hannes@...essinduktion.org>,
	djduanjiong@...il.com, netdev@...r.kernel.org,
	steffen.klassert@...unet.com, Neal Cardwell <ncardwell@...gle.com>,
	David Miller <davem@...emloft.net>
Subject: Re: PROBLEM: IPv6 TCP-Connections resetting

Hi,

> OK, it seems bug was added in commit
> ec18d9a2691d69cd14b48f9b919fddcef28b7f5c
> (ipv6: Add redirect support to all protocol icmp error handlers.)

> Not sure why Tetja Rediske  bisected t
> 093d04d42fa094f6740bb188f0ad0c215ff61e2c

there could be an simple explenation, because i couldn't realy provoke 
it with direct connected machines I did it on one of our least important 
DNS-Server, I did a "bad" everytime the connection fault and did a 
"good" after a some succesful connects (with waiting Time in between). 
If the Bug is based on an ICMPv6 redirect in the meantime a redirect 
could be sent out without me noticing. I did not keep the tcpdump 
running while bisect(?ing?).

I will happily try the patch, when I get to work Monday, weekend is 
mostly for family. ;)

Tetja

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