From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0128AC433E0 for ; Fri, 19 Feb 2021 16:28:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C5FF364D74 for ; Fri, 19 Feb 2021 16:28:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229734AbhBSQ2H (ORCPT ); Fri, 19 Feb 2021 11:28:07 -0500 Received: from mailout04.rmx.de ([94.199.90.94]:53574 "EHLO mailout04.rmx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229535AbhBSQ2G (ORCPT ); Fri, 19 Feb 2021 11:28:06 -0500 Received: from kdin02.retarus.com (kdin02.dmz1.retloc [172.19.17.49]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mailout04.rmx.de (Postfix) with ESMTPS id 4Dhxn60fZ0z3qxZ8 for ; Fri, 19 Feb 2021 17:27:22 +0100 (CET) Received: from mta.arri.de (unknown [217.111.95.66]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by kdin02.retarus.com (Postfix) with ESMTPS id 4Dhxn31888z2TRv3 for ; Fri, 19 Feb 2021 17:27:19 +0100 (CET) Received: from n95hx1g2.localnet (192.168.55.15) by mta.arri.de (192.168.100.104) with Microsoft SMTP Server (TLS) id 14.3.487.0; Fri, 19 Feb 2021 17:27:15 +0100 From: Christian Eggers To: Daniel Wagner , John Kacur CC: Sebastian Andrzej Siewior , Kurt Kanzenbach , Clark Williams , Subject: Re: [rt-tests v2 v2 01/20] cyclictest: Always use libnuma Date: Fri, 19 Feb 2021 17:27:14 +0100 Message-ID: <4628381.31r3eYUQgx@n95hx1g2> Organization: Arnold & Richter Cine Technik GmbH & Co. Betriebs KG In-Reply-To: References: <20201218161843.1764-1-dwagner@suse.de> <20210219161602.j7w6gwk7rao5u3ek@beryllium.lan> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Originating-IP: [192.168.55.15] X-RMX-ID: 20210219-172719-fTTdbwWyyqjc-0@out02.hq X-RMX-SOURCE: 217.111.95.66 Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org On Friday, 19 February 2021, 17:21:21 CET, John Kacur wrote: > > On Fri, 19 Feb 2021, Daniel Wagner wrote: > > > On Fri, Feb 19, 2021 at 04:21:46PM +0100, Christian Eggers wrote: > > > CONFIG_NUMA is not available on ARM32: > > > > libnuma is not happy if the kernel doesn't have the config > > option. Well, in this case we just revert the patch I suppose. > > > > Yeah, I'm not happy with this. > To be sure Daniel did a lot of good work cleaning-up some of the numa > calls and cleaning up the somewhat artificial smp / numa divide. > > That work needs to continue, but I want the ability to build cyclictest > without NUMA, and that also means we need the small helpers. Just for clarification: Does this mean that cyclictest shall link against libnuma (libnuma can be built on ARM without problems), but not call it functions at runtime? >From the numa.h: /* NUMA support available. If this returns a negative value all other function in this library are undefined. */ int numa_available(void); regards, Christian