From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: Re: RCU lock bug in 3.0.21 (bisected to: 682cb56a, fix NULL dereferences in check_peer_redir) Date: Mon, 26 Mar 2012 14:53:36 -0700 Message-ID: <4F70E560.3020102@candelatech.com> References: <4F70E308.7070908@candelatech.com> <20120326.174945.1186427809261872546.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, eric.dumazet@gmail.com, gregkh@linuxfoundation.org To: David Miller Return-path: Received: from mail.candelatech.com ([208.74.158.172]:52549 "EHLO ns3.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757364Ab2CZVxk (ORCPT ); Mon, 26 Mar 2012 17:53:40 -0400 In-Reply-To: <20120326.174945.1186427809261872546.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-ID: On 03/26/2012 02:49 PM, David Miller wrote: > > Looks like all of those strange undiagnosable reported Dave Jones > has been feeding us. Something in one part of the kernel leaves > a lock held, and this shows up as a warning elsewhere. Every (initial) bug printout fingers ipv6 and the 'ip' tool on my system. And, the bisect clearly points at this commit. I'm (re)reading the patch top to bottom to see if something jumps out...and will be happy to liberally sprinkle debug code if anyone has any suggestions. Thanks, Ben > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Ben Greear Candela Technologies Inc http://www.candelatech.com