Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753932AbbHaQse (ORCPT ); Mon, 31 Aug 2015 12:48:34 -0400 Received: from mail-ob0-f174.google.com ([209.85.214.174]:34866 "EHLO mail-ob0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753853AbbHaQsd (ORCPT ); Mon, 31 Aug 2015 12:48:33 -0400 MIME-Version: 1.0 In-Reply-To: References: Date: Mon, 31 Aug 2015 09:48:32 -0700 Message-ID: Subject: Re: igmp broadcast storm Red Hat EL7 3.1 Kernel From: Cong Wang To: Jeffrey Merkey Cc: linux-kernel , Linux Kernel Network Developers Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 964 Lines: 23 (Cc'ing netdev) On Sat, Aug 29, 2015 at 3:50 PM, Jeffrey Merkey wrote: > When installing Centos 7 running kernel 3.1 (Centos 7 distro) the > system generates an igmp broadcast storm which locks up and knocks > down a Century Link DSL router. Powering the router off clears the > broadcast storm. > > The bug is kernel related and resembles very closely another bug seen > about 10 years ago with Caldera's distro's on 2.4. The bug occurs on > the ia32 beta build. The bug DOES NOT exist in the 64 bit x86_64 > versions. I will attempt to debug it further since I have my own > debugger and try to run it down and provide more info. > A reproducer and/or bisect would help a lot. Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/