From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161533AbWI2TOs (ORCPT ); Fri, 29 Sep 2006 15:14:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161496AbWI2TOs (ORCPT ); Fri, 29 Sep 2006 15:14:48 -0400 Received: from peacekeeper.artselect.com ([69.18.47.2]:25487 "EHLO wyeth.artselect.com") by vger.kernel.org with ESMTP id S1161533AbWI2TOr (ORCPT ); Fri, 29 Sep 2006 15:14:47 -0400 Date: Fri, 29 Sep 2006 14:14:42 -0500 To: Tchesmeli Serge Cc: Joerg Roedel , linux-kernel@vger.kernel.org Subject: Re: [BUG] ? Strange behaviour since kernel 2.6.17 with a https website Message-ID: <20060929191442.GA18222@artselect.com> References: <451CEBA8.8050604@lea-linux.com> <20060929100211.GB19115@zlug.org> <451CF08D.8030606@lea-linux.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <451CF08D.8030606@lea-linux.com> User-Agent: Mutt/1.5.13 (2006-08-11) From: Pete Harlan Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 29, 2006 at 12:08:13PM +0200, Tchesmeli Serge wrote: > Joerg Roedel wrote: > > On Fri, Sep 29, 2006 at 11:47:20AM +0200, Tchesmeli Serge wrote: > > > > > >> Me and a friend have discover a stange behaviour since kernel 2.6.17. > >> > > > > Please try to switch off TCP window scaling using the command below > > (as root) and retry. > > > > echo 0 > /proc/sys/net/ipv4/tcp_window_scaling > > > > > Yes, it's work! And for a less-intrusive workaround in 2.6.18, see this commit comment: commit 316c1592bea94ead75301cb764523661fbbcc1ca Author: Stephen Hemminger Date: Tue Aug 22 00:06:11 2006 -0700 [TCP]: Limit window scaling if window is clamped. This small change allows for easy per-route workarounds for broken hosts or middleboxes that are not compliant with TCP standards for window scaling. Rather than having to turn off window scaling globally. This patch allows reducing or disabling window scaling if window clamp is present. Example: Mark Lord reported a problem with 2.6.17 kernel being unable to access http://www.everymac.com # ip route add 216.145.246.23/32 via 10.8.0.1 window 65535 Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller ---------------------------------- Pete Harlan ArtSelect, Inc. harlan@artselect.com http://www.artselect.com ArtSelect is a subsidiary of a21, Inc.