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=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 DC18BC433E0 for ; Thu, 18 Feb 2021 16:52:59 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6D71264EAD for ; Thu, 18 Feb 2021 16:52:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6D71264EAD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ocfmA3PESxle2ZZoBdPE5pct+Fo5fuSce57BeX6/c6w=; b=IW7K9zReG46lSO0nhDqV7Z6fE ABj9MrjVsqpKqvnHh0SOLDHamgzJBQW8TOhKmHXXs+ynT/dkqMWzcha5jgb3TfyEUIJwvh7mptd3T HJg0LqmX3B6xx1k8O2DlMBXyBl8Y7ZjTZFAwzUaAxfaOkKW1PMdnZ3VHBurPZNvgCI6KuBDQNqyhO xlGMlGjrZ1QejZCwcktdS8Lt8w/gJZRJyPQoLT6RmZOU/1WUberOPha3Vkx6co9a17HNnnUVI3Xbe QvNSXAZ6yQRtnsA5LSwyBmY25g4G0hezFa6IKEvJewYgqY6SosYw7ZatI/GFiZDhM+iAWHzgoXO9e +r6wH5k6g==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lCmWE-000478-QV; Thu, 18 Feb 2021 16:51:10 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lCmWC-00046e-5f for linux-arm-kernel@lists.infradead.org; Thu, 18 Feb 2021 16:51:08 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4BE246146D; Thu, 18 Feb 2021 16:51:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1613667066; bh=UiJoO9f05d/IEcVWcOSMmu4kK2DNYfzncgmF7M0/MI8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Qw8dHHGS6O4d2zSMZU/AvLTGm8l37ByEJ448BkoHYttzsoBfbBXYBga/46z+XHWmS qit7EBqisag5Nk0Oft7UsH+94QGQnoKCKoKu2N/BZ3SRYNhvCstV5ApszKhBMQ6c7x ltcX8wBfS6uhAO2HMhChF1VTZ9gBirHE7I0Ukm5NambydJoGaZjz/fukUdUOCtXXvu lnqVaKKMi/iEQIR8S9Jx4ZKcv4VAVYLKpPpf1PlosbpRPyODnMSyPujxSiDdn1cxZ3 XEXDtXIJD4duXcJ6P0vW5CFBZjeYFmR/7i0w0HMl7/CkjdN5grYIx42KovbMo4A+LH byN+uNFvHkGcQ== Date: Thu, 18 Feb 2021 11:51:04 -0500 From: Sasha Levin To: Scott Branden Subject: Re: 5.10 LTS Kernel: 2 or 6 years? Message-ID: <20210218165104.GC2013@sasha-vm> References: <8cf503db-ac4c-a546-13c0-aac6da5c073b@broadcom.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210218_115108_319905_0A2E3F39 X-CRM114-Status: GOOD ( 12.36 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Greg Kroah-Hartman , BCM Kernel Feedback , LKML , Linux ARM Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Feb 17, 2021 at 11:48:21AM -0800, Scott Branden wrote: >On 2021-02-17 1:40 a.m., Greg Kroah-Hartman wrote: >> Following up on this as I did not hear back from you. Are you and/or >> your company willing to help out with the testing of 5.10 to ensure that >> it is a LTS kernel? So far I have not had any companies agree to help >> out with this effort, which is sad to see as it seems that companies >> want 6 years of stable kernels, yet do not seem to be able to at the >> least, do a test-build/run of those kernels, which is quite odd... >I personally cannot commit to supporting this kernel for 6 years >(and personally do not want to backport new features to a 6 year old kernel). >And customers are finicky and ask for one thing and then change their mind later. Why would we commit to maintining an upstream LTS for 6 years then? If no one ends up using it (and we don't want anyone using older LTS kernels) we're still stuck maintaining it. >We'll have to see what decisions are made at a company level for this as there >are added costs to run tests on LTS kernel branches. We already run extensive QA on This sounds very wrong: it's ok to get volunteers to commit to 6 years while the company that is asking for it won't do the same? Shouldn't Broadcom commit to the work involved here first? >whatever active development branches are in use and a subset on the mainline >branch as well. QA resources are finite and committing those for 6 years is >not something that makes sense if customers drop that kernel version. >Testing of the LTS kernel changes really moves out of our hands and into the >customer's testing after our major releases to them. Keep in mind that QA resources are generally more abundant than engineering resources that need to actually backport stuff to old kernels. -- Thanks, Sasha _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel