From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: RCU lock bug in 3.0.21 (bisected to: 682cb56a, fix NULL dereferences in check_peer_redir) Date: Tue, 27 Mar 2012 02:07:14 +0200 Message-ID: <1332806834.3547.16.camel@edumazet-glaptop> References: <4F70E308.7070908@candelatech.com> <20120326.174945.1186427809261872546.davem@davemloft.net> <4F70E560.3020102@candelatech.com> <4F70F688.6050108@candelatech.com> <1332805148.3547.14.camel@edumazet-glaptop> <4F70FFE0.7070204@candelatech.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: David Miller , netdev@vger.kernel.org, gregkh@linuxfoundation.org, "Paul E. McKenney" To: Ben Greear Return-path: Received: from mail-ee0-f46.google.com ([74.125.83.46]:33487 "EHLO mail-ee0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752450Ab2C0AHS (ORCPT ); Mon, 26 Mar 2012 20:07:18 -0400 Received: by eekc41 with SMTP id c41so1702425eek.19 for ; Mon, 26 Mar 2012 17:07:17 -0700 (PDT) In-Reply-To: <4F70FFE0.7070204@candelatech.com> Sender: netdev-owner@vger.kernel.org List-ID: On Mon, 2012-03-26 at 16:46 -0700, Ben Greear wrote: > The 3.0.21 kernel doesn't appear to have a rcu_read_lock_return(), > so I can't use your patch below. This patch was only to show the point (I also CCed Paul, he might have some time to think about it, after he clears the inline stuff with Linus) As I said, I was referreing to you adding stuff in rcu. ;) Unfortunately I wont have time in the near future to do so myself.