From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262197AbUKDMS5 (ORCPT ); Thu, 4 Nov 2004 07:18:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262173AbUKDMS5 (ORCPT ); Thu, 4 Nov 2004 07:18:57 -0500 Received: from mail.dt.e-technik.Uni-Dortmund.DE ([129.217.163.1]:60614 "EHLO mail.dt.e-technik.uni-dortmund.de") by vger.kernel.org with ESMTP id S262186AbUKDMR6 (ORCPT ); Thu, 4 Nov 2004 07:17:58 -0500 Date: Thu, 4 Nov 2004 13:17:55 +0100 From: Matthias Andree To: Andrew Morton , linux-kernel@vger.kernel.org, linux-net@vger.kernel.org Subject: CULPRIT FOUND (was: 2.6.9 network regression killing amanda) Message-ID: <20041104121755.GA17144@merlin.emma.line.org> Mail-Followup-To: Andrew Morton , linux-kernel@vger.kernel.org, linux-net@vger.kernel.org References: <20041020191203.GA14356@merlin.emma.line.org> <20041020142420.0d513191.akpm@osdl.org> <20041020221034.GA10414@merlin.emma.line.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041020221034.GA10414@merlin.emma.line.org> User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I found the issue that was breaking my amanda dumps. Using the ip_conntrack_amanda component (either compiled into the kernel or loaded as a module) corrupts the packets by replacing one LF by a NUL byte. This in consequence invalidates the checksum, causing the packets to be discarded. Workaround: unload ip_conntrack_amanda. Fix: I've sent a patch in separate mail, Subject: [BK PATCH] Fix ip_conntrack_amanda data corruption bug that breaks amanda dumps -- Matthias Andree