From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: divide error: 0000, in bictcp_cong_avoid, kernel 2.6.39 Date: Tue, 5 Jul 2011 10:16:18 -0700 Message-ID: <20110705101618.744bbab0@nehalam.ftrdhcpuser.net> References: <4E11CCC4.2010404@techboom.com> <20110704103622.6294f9ed@nehalam.ftrdhcpuser.net> <4E120208.2090500@techboom.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: TB Return-path: Received: from mail.vyatta.com ([76.74.103.46]:50011 "EHLO mail.vyatta.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752328Ab1GERQW (ORCPT ); Tue, 5 Jul 2011 13:16:22 -0400 In-Reply-To: <4E120208.2090500@techboom.com> Sender: netdev-owner@vger.kernel.org List-ID: On Mon, 04 Jul 2011 14:10:16 -0400 TB wrote: > On 11-07-04 01:36 PM, Stephen Hemminger wrote: > > Any data about the type of connection, kernel configuration or other > > information that might be useful in reproducing the problem? > > > > Also please try 2.6.39.2 > > We haven't found a sure way of reproducing it. > It happened on 1.2% of our servers over the weekend and seems random. > Both are connected with 2 gigabit ports using bonding. Traffic tends to > be heavy, but doesn't seem to be a factor. > > Would a .config help ? > > Only the very basic filter module for iptables is compiled in. > > We will try 2.6.39.2 soon Kernel config (and compiler version) would help in identifying which of the three divides is getting divide by zero.