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,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 B2796C4361B for ; Wed, 16 Dec 2020 12:07:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 71DE92339F for ; Wed, 16 Dec 2020 12:07:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725550AbgLPMHE (ORCPT ); Wed, 16 Dec 2020 07:07:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46344 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725283AbgLPMHD (ORCPT ); Wed, 16 Dec 2020 07:07:03 -0500 Received: from mail-qt1-x835.google.com (mail-qt1-x835.google.com [IPv6:2607:f8b0:4864:20::835]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6D144C06179C for ; Wed, 16 Dec 2020 04:06:23 -0800 (PST) Received: by mail-qt1-x835.google.com with SMTP id c14so16982089qtn.0 for ; Wed, 16 Dec 2020 04:06:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:date:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to; bh=lnNS5vCyvhoJP3cm92SBm1aDGzANpXNP5uiF8x47WE4=; b=mXF4hA+9eELLl9koXO+7h2T2Bb/8+FP6BeYLiDUrT1JwDXABmJT+BJY1/DCEhqt/k6 rFldjUxXJPSn6Ned3nTUgTEoS1iqOUifBToHvym1LZEeY6k9ROrJ1FJv4RAx2KpEqyRF P2fsQx93yLl/+pk0t+eIiqcIfK6fCpSgnwAwUV5qWTv2BzSSQUZMsj2yNBJBQppKLPUe NkE3m3EjHzc7pUg5CvEHO1uwUvacH59I5mbCOBB1NPtPbbtYt495+n/AM8koS3LEWrUD ZbN4gczrEOzn7zg9V75PEXCW5wxvihB/tq9M6i5ZHPvuXIQXKGkKOgkSP+BhtxGISm3c rDPA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:date:to:cc:subject:message-id :references:mime-version:content-disposition :content-transfer-encoding:in-reply-to; bh=lnNS5vCyvhoJP3cm92SBm1aDGzANpXNP5uiF8x47WE4=; b=NivE9oY8BpwltKHcRXhifSFe0ZTTdvBp7NMnIXyWtcEpduNEU2NlAVLaY6bED1btwY nYE+3Tu+6jhkkYsTMhh1GySXXBJWbRg2UvVs3+GA7hAG0noyZhOSQcHy6UJf7zFQ1FNt ms1y+cMn2vx5TjGLgQKjz2U+maWTuk+TjEKs7lSV6n91CXlYcukD6Oe++EuTdGFTud8r V3Qi9txaFBB1hr7wn9TX9QGHv5CTip2T0E01436534dTel9zJwM/CInEUdlFTTn8gAhO 6REAyqapOsS2lUZsG4mkKZ55IagWTQ5q8Ynm5OtICOlkrs5unxO5x0u6WhfX6yt2KzDe GAqQ== X-Gm-Message-State: AOAM531Hp8nD58wxDwW1o84/bwkwHGHCtzTHcut7MJJuVpy1mO2fN3f4 /9K8/krhYDSESMvUKWab/NE= X-Google-Smtp-Source: ABdhPJyyWQ+IBuycYetoRtuPvuYYC/zozCwaQ1zbgVt2gslt/Lb8gIzzq+41tvosGjILqYRuvYzC4Q== X-Received: by 2002:a05:622a:107:: with SMTP id u7mr19506639qtw.204.1608120382550; Wed, 16 Dec 2020 04:06:22 -0800 (PST) Received: from lclaudio.dyndns.org ([191.177.185.4]) by smtp.gmail.com with ESMTPSA id t30sm963852qkj.29.2020.12.16.04.06.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Dec 2020 04:06:21 -0800 (PST) Sender: "Luis Claudio R. Goncalves" From: "Luis Claudio R. Goncalves" X-Google-Original-From: "Luis Claudio R. Goncalves" Received: by lclaudio.dyndns.org (Postfix, from userid 1000) id AF8B23C004D; Wed, 16 Dec 2020 09:06:18 -0300 (-03) Date: Wed, 16 Dec 2020 09:06:18 -0300 To: Stephane ANCELOT Cc: Lukas Bulwahn , linux-rt-users@vger.kernel.org Subject: Re: enabling rt preempt Message-ID: <20201216120618.GD960718@uudg.org> References: <2aa26de8-1345-7e46-3628-a97a54e677b5@numalliance.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org On Wed, Dec 16, 2020 at 09:39:31AM +0100, Stephane ANCELOT wrote: > > Le 16/12/2020 à 09:36, Lukas Bulwahn a écrit : > > On Wed, Dec 16, 2020 at 9:31 AM Stephane ANCELOT > > wrote: > > > Hi, > > > > > > I have downloaded latest LTS kernel 5.4 . > > > > > > For unknown reasons, I dont understand why I can't enable full rt preempt, > > > > > Well, PREEMPT_RT is not available on v5.4 without the PREEMPT_RT patch set. > Sorry, I thought it was now part of the mainstream kernel. I have not > understand :-\ The merge into upstream is an ongoing effort and is not complete yet. Here is the announce for the latest available PREEMPT_RT patch for v5.4 (v5.4.82-rt45): https://www.spinics.net/lists/linux-rt-users/msg23022.html In the message you will find instructions to get the code. Best regards, Luis > > You can check that there is no architecture support for PREEMPT_RT on > > the stable kernel. Just look at the Kconfig files defining those > > config symbols. > > > > Lukas ---end quoted text---