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=-8.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 D83C2C433E1 for ; Mon, 17 Aug 2020 15:14:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B73DF2065C for ; Mon, 17 Aug 2020 15:14:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597677285; bh=vmZopscrrrNVPg+TZSZSOT25ARHVYFGtjVF3we5IiyU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=D8gP+oOW1Oe6MhhwYD1j/1Aacmq1FCBs9pVJBAbdDADgmaGMqsla762RVSbAXCz2Y mVPaY9YzdOr1kgH6JqDGdu23sLxLLfSsqg6hFanLU6GeMg2VhJIr+M0KFgJxPo2F0+ FQGR6k2MKPbjXpDqv+CfNEXS7oJll5YucgnsW9C0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729162AbgHQPOn (ORCPT ); Mon, 17 Aug 2020 11:14:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:38320 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726630AbgHQPOm (ORCPT ); Mon, 17 Aug 2020 11:14:42 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 48D422065C; Mon, 17 Aug 2020 15:14:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597677281; bh=vmZopscrrrNVPg+TZSZSOT25ARHVYFGtjVF3we5IiyU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=vFbu64yLvCssDuY4hU3yyUolk8H3x2CQiPa2i8Ipvkb3dLW2HTQC7JCkzoXKIg/k3 do8VFwoBvLDDsj0CgxNYpVR7eS98GAxajWsSQERzn28DFAiqrBFF1EOt+wXyHje5uI v02gQuNr4fJ4JcyRo2ZGZ5UUOxUyK/3qa5FeddGs= Date: Mon, 17 Aug 2020 17:15:00 +0200 From: "gregkh@linuxfoundation.org" To: Roosen Henri Cc: "y2038@lists.linaro.org" , "linux-kernel@vger.kernel.org" , "arnd@arndb.de" Subject: Re: y2038 backport to v5.4 Message-ID: <20200817151500.GA659819@kroah.com> References: <6c77e2a615ca01e753735e21752fe5e1b3fb636f.camel@ginzinger.com> <20200817143513.GA539521@kroah.com> <372cbefff43c2a96379f00de5880bc9d54df6acd.camel@ginzinger.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <372cbefff43c2a96379f00de5880bc9d54df6acd.camel@ginzinger.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 17, 2020 at 03:00:24PM +0000, Roosen Henri wrote: > On Mon, 2020-08-17 at 16:35 +0200, gregkh@linuxfoundation.org wrote: > > On Mon, Aug 17, 2020 at 02:15:16PM +0000, Roosen Henri wrote: > > > On Tue, 2020-06-09 at 16:18 +0200, Arnd Bergmann wrote: > > > > On Tue, Jun 9, 2020 at 2:36 PM Roosen Henri < > > > > Henri.Roosen@ginzinger.com> wrote: > > > > > Hi Arnd, > > > > > > > > > > I hope you are well and could answer me a quick question. > > > > > > > > > > I've read on the kernel mailing-list that initially there was > > > > > an > > > > > intention to backport the final y2038 patches to v5.4. We're > > > > > currently targeting to use the v5.4 LTS kernel for a project > > > > > which > > > > > should be y2038 compliant. > > > > > > > > > > I couldn't find all of the y2038-endgame patches in the current > > > > > v5.4-stable branch. Are there any patches still required to be > > > > > backported in order for v5.4 to be y2038 compliant, or can the > > > > > remaining patches be ignored (because of only cleanup?)? Else, > > > > > is > > > > > there still an intention to get the v5.4 LTS kernel y2038 > > > > > compliant? > > > > > > > > I don't think there are currently any plans to merge my y2038- > > > > endgame > > > > branch > > > > into the official linux-5.4 lts kernel, but you should be able to > > > > just pull from > > > > > > > > https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=y2038-endgame > > > > > > > > and get the same results. If you see any problems with that, > > > > please > > > > report > > > > that to me with Cc to the mailing list and perhaps gregkh, so I > > > > can > > > > see if > > > > I can resolve it by rebasing my patches, or if he would like to > > > > merge > > > > the > > > > patches. > > > > > > Pulling the y2038-endgame branch does lead to some conflicts, which > > > are > > > currently still kinda staightforward to solve. > > > > > > However I'd be very interested in getting this branch merged to > > > v5.4, > > > so we don't run into more difficult merge conflicts the coming > > > years > > > where the v5.4-LTS still gets stable updates (Dec, 2025) and > > > possibly > > > to get any related fixes from upstream. > > > > > > @Greg: any chance to get the y2038-endgame merged into v5.4.y? > > > > I have no idea what this really means, and what it entails, but odds > > are, no :) > > I fully understand, thanks for your statement on this. > > > > > Why not just use a newer kernel? Why are you stuck using a 5.4 > > kernel > > for a device that has to live in 2038? That feels very foolish to > > me... > > Oh I agree on that :) It's just that these are currently customer > requirements. Are you sure that customers really understand what they want? Usually they want a well-supported, stable, system. Why do they care about a specific kernel version? That feels odd. Good luck! greg k-h