Debian Bug report logs - #412940
general: every other OS can receive an HTTP response, but not etch

Package: general; Maintainer for general is debian-devel@lists.debian.org;

Reported by: Owen King <samething4030@samething.net>

Date: Thu, 1 Mar 2007 02:54:02 UTC

Severity: important

Tags: unreproducible

Done: Peter Eisentraut <peter_e@gmx.net>

Bug is archived. No further changes may be made.

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Report forwarded to debian-bugs-dist@lists.debian.org, <debian-devel@lists.debian.org>:
Bug#412940; Package general. Full text and rfc822 format available.

Acknowledgement sent to Owen King <samething4030@samething.net>:
New Bug report received and forwarded. Copy sent to <debian-devel@lists.debian.org>. Full text and rfc822 format available.

Message #5 received at submit@bugs.debian.org (full text, mbox):

From: Owen King <samething4030@samething.net>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: general: every other OS can receive an HTTP response, but not etch
Date: Wed, 28 Feb 2007 21:51:28 -0500
Package: general
Severity: important

No computers running etch seem to be able to get an HTTP response from some 
particular web servers.  Computers running other OSs (including sarge) have no 
problem with these servers.  If other OSs can get a response, then etch should be 
able to do so too.

This problem seems to have arisen with a recent (some time in February) update to 
etch.

How to witness the problem:
Use wget or any web browswer to try to retrieve the file from this URL:
	http://www.ureg.ohio-state.edu/ourweb/online.html

The client resolves the host, establishes a connection, and sends an HTTP request.  
However, it receives no response.  However, a client on any OS besides etch will 
receive a response.

wget output from an etch machine:

*****begin transcript*****
[etch machine]$ wget -d http://www.ureg.ohio-state.edu/ourweb/online.html
DEBUG output created by Wget 1.10.2 on linux-gnu.

--21:29:23--  http://www.ureg.ohio-state.edu/ourweb/online.html
           => `online.html'
Resolving www.ureg.ohio-state.edu... 128.146.64.104
Caching www.ureg.ohio-state.edu => 128.146.64.104
Connecting to www.ureg.ohio-state.edu|128.146.64.104|:80... connected.
Created socket 3.
Releasing 0x0808fd80 (new refcount 1).

---request begin---
GET /ourweb/online.html HTTP/1.0
User-Agent: Wget/1.10.2
Accept: */*
Host: www.ureg.ohio-state.edu
Connection: Keep-Alive

---request end---
HTTP request sent, awaiting response... Read error (Connection reset by peer) in headers.
Closed fd 3
Retrying.
*****end transcript*****

wget output from a sarge machine:

******begin transcript*****
[sarge machine]$ wget -d http://www.ureg.ohio-state.edu/ourweb/online.html
DEBUG output created by Wget 1.9.1 on linux-gnu.

--21:41:41--  http://www.ureg.ohio-state.edu/ourweb/online.html
           => `online.html'
Resolving www.ureg.ohio-state.edu... 128.146.64.104
Caching www.ureg.ohio-state.edu => 128.146.64.104
Connecting to www.ureg.ohio-state.edu[128.146.64.104]:80... connected.
Created socket 3.
Releasing 0x80a60d0 (new refcount 1).
---request begin---
GET /ourweb/online.html HTTP/1.0
User-Agent: Wget/1.9.1
Host: www.ureg.ohio-state.edu
Accept: */*
Connection: Keep-Alive

---request end---
HTTP request sent, awaiting response... HTTP/1.1 200 OK
Content-Length: 17686
Content-Type: text/html
Last-Modified: Fri, 15 Sep 2006 12:22:14 GMT
Accept-Ranges: bytes
ETag: "3938fd93c1d8c61:91210"
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
Date: Thu, 01 Mar 2007 02:41:40 GMT
Connection: keep-alive


Length: 17,686 [text/html]

100%[====================================>] 17,686       105.31K/s

21:41:41 (105.28 KB/s) - `online.html' saved [17686/17686]
*****end transcript*****

I have run an informal poll over at Linux Forums, and no one who is running etch 
can get an HTTP response from this server, but people running other OSs can get a 
response.  Here is the Linux Forums thread:
	http://www.linuxforums.org/forum/debian-linux-help/86841-bizarre-lack-http-response-problem.html

Again, if other OSs can get a response, then etch should be able to also.  
(Incidentally, the site in question is of some importance since it is used by tens 
of thousands of students at a major public university.)

I have no idea how to resolve this problem, but it seems serious.

-- System Information:
Debian Release: 4.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-3-k7
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)



Information forwarded to debian-bugs-dist@lists.debian.org, <debian-devel@lists.debian.org>:
Bug#412940; Package general. Full text and rfc822 format available.

Acknowledgement sent to Simon Paillard <simon.paillard@resel.enst-bretagne.fr>:
Extra info received and forwarded to list. Copy sent to <debian-devel@lists.debian.org>. Full text and rfc822 format available.

Message #10 received at 412940@bugs.debian.org (full text, mbox):

From: Simon Paillard <simon.paillard@resel.enst-bretagne.fr>
To: 412940-submitter@bugs.debian.org, 412940@bugs.debian.Org
Subject: tcp window scaling ? (was: general: every other OS can receive an HTTP response, but not etch)
Date: Mon, 30 Apr 2007 18:55:26 +0200
On Wed, Feb 28, 2007 at 09:51:28PM -0500, Owen King wrote:
> Package: general
> Severity: important
> 
> No computers running etch seem to be able to get an HTTP response from some 
> particular web servers.  Computers running other OSs (including sarge) have no 
> problem with these servers.  If other OSs can get a response, then etch should be 
> able to do so too.
> [...]
> I have no idea how to resolve this problem, but it seems serious.

It might be a issue with TCP window scaling that some servers don't
handle correctly :
Please check http://www.us.debian.org/releases/etch/i386/release-notes/ch-information.html#s-window-scaling 

Regards,

-- 
Simon Paillard



Message sent on to Owen King <samething4030@samething.net>:
Bug#412940. Full text and rfc822 format available.

Information forwarded to debian-bugs-dist@lists.debian.org, <debian-devel@lists.debian.org>:
Bug#412940; Package general. Full text and rfc822 format available.

Acknowledgement sent to Eddy Petrișor <eddy.petrisor@gmail.com>:
Extra info received and forwarded to list. Copy sent to <debian-devel@lists.debian.org>. Full text and rfc822 format available.

Message #18 received at 412940@bugs.debian.org (full text, mbox):

From: Eddy Petrișor <eddy.petrisor@gmail.com>
To: 412940@bugs.debian.org, control@bugs.debian.org
Subject: I have etch, but I can't reproduce, the page downloads right away
Date: Fri, 25 May 2007 22:02:39 +0300
[Message part 1 (text/plain, inline)]
tags 412940 unreproducible
thanks


eddy@bounty ~ $ wget -d http://www.ureg.ohio-state.edu/ourweb/online.html
DEBUG output created by Wget 1.10.2 on linux-gnu.

--22:00:04--  http://www.ureg.ohio-state.edu/ourweb/online.html
           => `online.html'
Rezolvare www.ureg.ohio-state.edu... 128.146.64.104
Caching www.ureg.ohio-state.edu => 128.146.64.104
Connecting to www.ureg.ohio-state.edu|128.146.64.104|:80... conectat.
Created socket 3.
Releasing 0x0000000000560aa0 (new refcount 1).

---request begin---
GET /ourweb/online.html HTTP/1.0
User-Agent: Wget/1.10.2
Accept: */*
Host: www.ureg.ohio-state.edu
Connection: Keep-Alive

---request end---
Cerere HTTP trimisă, se aşteaptă răspuns...
---response begin---
HTTP/1.1 200 OK
Content-Length: 18506
Content-Type: text/html
Last-Modified: Thu, 17 May 2007 21:09:10 GMT
Accept-Ranges: bytes
ETag: "9f56529dc798c71:9a306"
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
Date: Fri, 25 May 2007 19:00:05 GMT
Connection: keep-alive

---response end---
200 OK
Registered socket 3 for persistent reuse.
Dimensiune: 18.506 (18K) [text/html]

100%[==============================================================================>] 18.506        --.--K/s

22:00:08 (623.76 KB/s) - `online.html' saved [18506/18506]
eddy@bounty ~ $ cat /etc/debian_version
4.0


-- 
Regards,
EddyP
=============================================
"Imagination is more important than knowledge" A.Einstein

[signature.asc (application/pgp-signature, attachment)]

Tags added: unreproducible Request was from Eddy Petrișor <eddy.petrisor@gmail.com> to control@bugs.debian.org. (Fri, 25 May 2007 19:06:03 GMT) Full text and rfc822 format available.

Information forwarded to debian-bugs-dist@lists.debian.org, <debian-devel@lists.debian.org>:
Bug#412940; Package general. Full text and rfc822 format available.

Acknowledgement sent to Bernd Zeimetz <bernd@bzed.de>:
Extra info received and forwarded to list. Copy sent to <debian-devel@lists.debian.org>. Full text and rfc822 format available.

Message #25 received at 412940@bugs.debian.org (full text, mbox):

From: Bernd Zeimetz <bernd@bzed.de>
To: 412940@bugs.debian.org
Subject: Re: Bug#412940: I have etch, but I can't reproduce, the page downloads right away
Date: Fri, 25 May 2007 22:07:17 +0200
Looks like a tcp window scaling problem.
It doesn't download here until I use
echo 0 > /proc/sys/net/ipv4/tcp_window_scaling
as workaround.
See
http://www.debian.org/releases/stable/amd64/release-notes/ch-information.en.html#s-window-scaling
and http://kerneltrap.org/node/6723
for more informations about the problem.

Way to fix this bug: find the broken box and replace it. Nothing Debian
can fix.

Imho this bug can be closed.

-- 
Bernd Zeimetz
<bernd@bzed.de>                         <http://bzed.de/>



Reply sent to Peter Eisentraut <peter_e@gmx.net>:
You have taken responsibility. Full text and rfc822 format available.

Notification sent to Owen King <samething4030@samething.net>:
Bug acknowledged by developer. Full text and rfc822 format available.

Message #30 received at 412940-done@bugs.debian.org (full text, mbox):

From: Peter Eisentraut <peter_e@gmx.net>
To: 412940-done@bugs.debian.org
Subject: Re: Bug#412940: general: every other OS can receive an HTTP response, but not etch
Date: Fri, 4 Apr 2008 01:17:43 +0200
This problem was caused by a broken host elsewhere, not a fault in Debian.




Bug archived. Request was from Debbugs Internal Request <owner@bugs.debian.org> to internal_control@bugs.debian.org. (Fri, 02 May 2008 07:41:43 GMT) Full text and rfc822 format available.

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