From mboxrd@z Thu Jan 1 00:00:00 1970 From: Corey Minyard Subject: Re: Can PAX and Rt-patch co-exist ? Date: Fri, 02 May 2014 12:28:42 -0500 Message-ID: <5363D5CA.2020102@mvista.com> References: <53618D0A.2050609@mvista.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: linux-rt-users@vger.kernel.org To: Mau Z Return-path: Received: from mail-pa0-f50.google.com ([209.85.220.50]:50165 "EHLO mail-pa0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752721AbaEBR2q (ORCPT ); Fri, 2 May 2014 13:28:46 -0400 Received: by mail-pa0-f50.google.com with SMTP id rd3so5725441pab.37 for ; Fri, 02 May 2014 10:28:45 -0700 (PDT) In-Reply-To: Sender: linux-rt-users-owner@vger.kernel.org List-ID: On 05/02/2014 02:40 AM, Mau Z wrote: > Thanks > > The answer is very surprising. > I would assume that more than one person would have such an experience. Well, the LTSI organization may have done it. That's all I can think of, though. > > > I am curious regarding the magnitude of work to be done. I am > especially intersted what happens when you have to handle another > Linux version for your distribution. > > Is this job done just once (for one specific Linux version) ? Once for a specific Linux version, 3.10. > or > You do the job once, and then do the same fixes on the other Linux > version (more or less) ? > or > You have to do the same job all over again in every linux version ? We will on the next version we release, yes. > > > Is the following discription correct ? > Basically the job is > 1) Download kernel > 2) apply RT-patch > 3) apply PAX patch > 4) compile and fix warnings and errors Well, there's testing :). But basically yes. Resolving the conflicts is the biggest deal, really, in the above process. And testing is a lot bigger than that :). We integrate a lot of other things, so it's hard to remember the specific RT/PaX issues. -corey > > Thanks > again > zmau > > > On Thu, May 1, 2014 at 2:53 AM, Corey Minyard wrote: >> On 04/30/2014 05:47 PM, Mau Z wrote: >>> I have some more questions concerning the relation between PAX and the >>> RT-Patch : >>> A) Can they work together ? >> It can be made to work. We have it working together in our distribution. >> >>> B) Do you know if it matters which patch is applied first ? >> Not really. >> >>> C) Is there any documentation about this subject ? >> None that I know of. I imagine that I'm the only person who has ever >> done this. >> >> There are some conflicts (a few are non-trivial, but not excessively >> complicated, IIRC). But it's not something insurmountable. You do have >> to have a fairly good understanding of kernel code. >> >> -corey >> >>> >>> Thanks >>> zmau >>> -- >>> To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in >>> the body of a message to majordomo@vger.kernel.org >>> More majordomo info at http://vger.kernel.org/majordomo-info.html