From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick McHardy Subject: Re: About the kernel panic using the ip_queue! Date: Thu, 25 Sep 2008 06:49:38 +0200 Message-ID: <48DB1862.3000209@trash.net> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: netfilter-devel@vger.kernel.org To: Jacky Luk Return-path: Received: from stinky.trash.net ([213.144.137.162]:57554 "EHLO stinky.trash.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751030AbYIYEtl (ORCPT ); Thu, 25 Sep 2008 00:49:41 -0400 In-Reply-To: Sender: netfilter-devel-owner@vger.kernel.org List-ID: Jacky Luk wrote: > Hi, > > I am using the ip_queue to copy the packets to the userspace to perform > some modification in the system which is installed the Red Hat > Enterprise Linux ES release 4 Nahant Update 6 (Kernel: 2.6.9-67.ELsmp). > This system has six NIC ports and forms three bondings (Two ports to > form one bonding). Therefore, two of the bondings would be used to > handle the packet modification. They are belonged to different network > and subnets. One of the bonding is belonged to 192.168.0.x and the other > one is belonged to 192.168.1.x. > > I have discovered that the system would be freezed under the high > traffic loading in certain time. The following is the error message > which is captured from the /var/log/message: > > Sep 19 02:25:28 NEIPPROXY02 kernel: EFLAGS: 00010246 (2.6.9-67.ELsmp) > Sep 19 02:25:28 NEIPPROXY02 kernel: EIP is at flush_old_exec+0x178/0x24c That doesn't look related to ip_queue. In any case, that kernel is many years old, so you need to talk to your vendor for support. There have been *a lot* of queueing related fixes since then.