From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Gleixner Subject: Re: [PATCH RT 3/4] net: netfilter: Serialize xt_write_recseq sections on RT Date: Fri, 2 Nov 2012 00:01:59 +0100 (CET) Message-ID: References: <20121031003258.811955127@goodmis.org> <20121031003314.763160265@goodmis.org> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: Steven Rostedt , linux-kernel@vger.kernel.org, linux-rt-users , Carsten Emde , John Kacur To: Peter LaDow Return-path: Received: from www.linutronix.de ([62.245.132.108]:35644 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936148Ab2KAXCD (ORCPT ); Thu, 1 Nov 2012 19:02:03 -0400 In-Reply-To: Sender: linux-rt-users-owner@vger.kernel.org List-ID: On Thu, 1 Nov 2012, Peter LaDow wrote: > On Thu, Nov 1, 2012 at 2:26 PM, Thomas Gleixner wrote: > > Cough. You are missing a boat load of crucial fixes. There is a damned > > good reason why 3.0.stable got 12 updates and the -rt version 14. > > I don't doubt there are. But we've only experienced one problem > between 3.0.36-rt58 and 3.0.48-rt72. Indeed, it might be easier to > evaluate the risk if all the changelogs were readily available. So > far, however, we haven't discovered any other issues that give us any > concerns. > > > Your risk assessment is definitley interesting. > > We have specifically tested 3.0.36-rt58 for performance in our > application. Moving to 3.0.48-rt72 poses risk about whether would > still be able to meet our performance requirements. And with regard > to stability, the only issue we've had since our earlier moved to > 3.0.36-rt58 was the netfilter problem. We initially only saw the > problem on PPP related interfaces, so we reverted to 3.0.3 (non-rt) > for PPP related issues. > > Now, if you think there are some issues that should raise eyebrows, or > can point me to a list of changelogs, I'd be happy to evaluate them. git log v3.0.36-rt58..3.0.48-rt72 That's what a source version control system is designed for AFAICT Thanks, tglx