From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id 1D0921B1AB for ; Wed, 14 Feb 2018 12:44:21 +0100 (CET) X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Feb 2018 03:44:19 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,512,1511856000"; d="scan'208";a="18032521" Received: from bricha3-mobl3.ger.corp.intel.com ([10.252.19.81]) by orsmga008.jf.intel.com with SMTP; 14 Feb 2018 03:44:17 -0800 Received: by (sSMTP sendmail emulation); Wed, 14 Feb 2018 11:44:16 +0000 Date: Wed, 14 Feb 2018 11:44:15 +0000 From: Bruce Richardson To: Luca Boccassi Cc: Maxime Coquelin , Thomas Monjalon , Stephen Hemminger , dev@dpdk.org Message-ID: <20180214114415.GA1880@bricha3-MOBL3.ger.corp.intel.com> References: <20180131152709.13853-1-stephen@networkplumber.org> <2393289.cND9ge7AvX@xps> <1518604285.4059.14.camel@debian.org> <470fdbc6-7280-1523-da8b-91fda8fafbcf@redhat.com> <1518605684.4059.16.camel@debian.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1518605684.4059.16.camel@debian.org> Organization: Intel Research and Development Ireland Ltd. User-Agent: Mutt/1.9.1 (2017-09-22) Subject: Re: [dpdk-dev] [PATCH] doc: add kernel version deprecation notice X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Feb 2018 11:44:22 -0000 On Wed, Feb 14, 2018 at 10:54:44AM +0000, Luca Boccassi wrote: > On Wed, 2018-02-14 at 11:38 +0100, Maxime Coquelin wrote: > > > > On 02/14/2018 11:31 AM, Luca Boccassi wrote: > > > On Wed, 2018-02-14 at 00:58 +0100, Thomas Monjalon wrote: > > > > 31/01/2018 16:27, Stephen Hemminger: > > > > > Notify users of upcoming change in kernel requirement. > > > > > Encourage users to use current LTS kernel version. > > > > > > > > > > Signed-off-by: Stephen Hemminger > > > > > --- +* linux: Linux kernel version 3.2 (which is the current > > > > > minimum required +  version for the DPDK) will be end of life > > > > > in May 2018. Therefore the planned +  minimum required kernel > > > > > version for DPDK 18.5 will be next oldest Long +  Term Stable > > > > > (LTS) version which is 3.10. The recommended kernel version is > > > > > +  the latest LTS kernel which currently is 4.14. > > > > > > > > We could print a warning at EAL init if kernel version does not > > > > satisfy the minimal requirement. > > > > > > > > Acked-by: Thomas Monjalon > > > > > > Note that 3.10 is dead as well since last year (as I discovered > > > with immense joy when I had to backport meltdown fixes...), the > > > next LTS in 3.16 which will be maintained until 04/2020. > > > > > > > In this case we should differentiate upstream Kernel versions from > > downstream ones. For example, RHEL7/CentOS7 are based on v3.10 ans > > still maintained. > > Ubuntu does 3.13 as well - I think the problem is that if we want to > support distro-specific LTS kernel versions, we need volunteers to do > the work for them :-) > > -- I think our kernel support plans need to be two-fold: 1) we need to support a minimum "kernel.org" kernel version, which is what the deprecation notice is about. 2) we also will be supporting LTS distributions, e.g. I would expect us to always support the latest RHEL, so that should be noted explicitly in the GSG IMHO. /Bruce