netdev - Re: Accessing certain web sites broken from 2.6.19+

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Message-ID: <7e63f56c0705102257r51e80d45s844cb14ebb6abb9b@mail.gmail.com>
Date:	Fri, 11 May 2007 07:57:57 +0200
From:	"Robert Iakobashvili" <coroberti@...il.com>
To:	"Andrew Hall" <andrew.a.hall@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: Accessing certain web sites broken from 2.6.19+

Andrew,

On 5/11/07, Andrew Hall <andrew.a.hall@...il.com> wrote:
> > > When accessing certain web sites when using any kernel above 2.6.19,
> > TCP seems to break. Connection to the site is established but never
> > completes.

Is it happening with a single connection, or when trying tens, hundreds,
thousands? Is it stalled?
Could you send a packet capture for such connection? Thank you.

> > > One particular site is www.dcita.gov.au. Is there a known issue
> > pertaining to this? Using any kernel below 2.6.19 (for example: 2.6.12 or
> > 2.6.15) works fine.

> I have not yet tried 2.6.21.. only tried to 2.6.20.9.

Please, try it with the most close configuration by using the
same config-file and running make oldconfig. There are some
issues fixed since that.

> The issue isn't browser dependent ,as a wget directly from the OS will also fail during the
> connection. Interestingly requests made from hosts behind the 2.6.20 gateway
> that make the same request work fine, it seems it's only requests made from
> the localhost itself.

To be in position to assist you, the people of the list may wish more
details, like:
1. wireshark or tcpdump capture of the broken/stalled sessions;
2. iptables ruleset dump and running modules list;
3. more knowledge about your kernel configuration (config file);
4. more details about your HW, particular networking and their drivers
(is not it a HW/card/driver specific issue?)

Y may wish to look at how other people are submitting issues/bugs with
more details.
-- 
Sincerely,
Robert Iakobashvili,
coroberti %x40 gmail %x2e com
...........................................................
http://curl-loader.sourceforge.net
A web testing and traffic generation tool.
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