From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id E4423504 for ; Tue, 8 May 2018 22:41:40 +0000 (UTC) Received: from bedivere.hansenpartnership.com (bedivere.hansenpartnership.com [66.63.167.143]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 5E8B9F4 for ; Tue, 8 May 2018 22:41:40 +0000 (UTC) Message-ID: <1525819297.13798.3.camel@HansenPartnership.com> From: James Bottomley To: Sasha Levin , David Lang Date: Tue, 08 May 2018 15:41:37 -0700 In-Reply-To: <20180508214339.GE8514@sasha-vm> References: <20180503031000.GC29205@thunk.org> <0276fcda-0385-8f22-dbdb-e063f7ed8bbe@roeck-us.net> <20180503224217.GR2714@sirena.org.uk> <20180503230905.GA98604@atomide.com> <20180508023439.GA8514@sasha-vm> <20180508034820.GE999@thunk.org> <20180508202912.GC8514@sasha-vm> <20180508205505.GD8514@sasha-vm> <20180508214339.GE8514@sasha-vm> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Cc: Greg Kroah-Hartman , Linux Kernel Mailing List , "ksummit-discuss@lists.linuxfoundation.org" , "w@1wt.eu" Subject: Re: [Ksummit-discuss] bug-introducing patches List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 2018-05-08 at 21:43 +0000, Sasha Levin via Ksummit-discuss wrote: > On Tue, May 08, 2018 at 01:59:18PM -0700, David Lang wrote: > > On Tue, 8 May 2018, Sasha Levin wrote: > > > > > There's no one, for example, who picked up vanilla v4.16 and > > > plans to keep using it for a year. > > > > Actually, at a prior job I would do almost exactly that. > > > > I never intended to go a year without updating, but it would happen > > if  nothing came up that was related to the hardware/features I > > was running. > > > > so 'no one uses the Linus kernel is false. > > My point is not that "no one ever uses Linus kernel" but that no one > takes one of those kernels and plans to stick with it for 3 months > until the next one comes up, even if there are updates relevant to > that user.. Actually, I have sometimes done that. My current laptop is running the v4.16 tag now, not because I intended to run it for this long but because I've run into a Round Tuit shortage as far as the -rc candidates go. > Yes, some users will use a .0 release until either Greg releases a > -stable, or until the next -rc is out. > > What I'm trying to say is that there is that the .0 release makes > some people rush poorly tested commits in it even though the .0 > release is not significant in any way. As a milestone, it's extremely significant because it's the cadence from which everything else flows. If we as developers stop taking the -rc cycle seriously, you'll find immediate negative consequences for your stable kernels. And I mean way worse consequences than the odd bad judgment call about a patch that ought not to have gone in right before a Linus release. James