Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752826AbbBXCfA (ORCPT ); Mon, 23 Feb 2015 21:35:00 -0500 Received: from mail-we0-f180.google.com ([74.125.82.180]:37344 "EHLO mail-we0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752475AbbBXCe7 (ORCPT ); Mon, 23 Feb 2015 21:34:59 -0500 Message-ID: <1424745296.10678.12.camel@gmail.com> Subject: Re: Linux 4.0-rc1 out.. From: Mike Galbraith To: Christian Borntraeger Cc: Linus Torvalds , Linux Kernel Mailing List , jseward@acm.org Date: Tue, 24 Feb 2015 03:34:56 +0100 In-Reply-To: <54EB4A98.6020300@de.ibm.com> References: <54EB4A98.6020300@de.ibm.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.9 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1770 Lines: 42 On Mon, 2015-02-23 at 16:43 +0100, Christian Borntraeger wrote: > Am 23.02.2015 um 04:06 schrieb Linus Torvalds: > > .. let's see how much, if anything, breaks due to the version number. > > Probably less than during the 3.0 timeframe, but I can just imagine > > somebody checking for meaningful versions. > > > > Because the people have spoken, and while most of it was complete > > gibberish, numbers don't lie. People preferred 4.0, and 4.0 it shall > > be. Unless somebody can come up with a good argument against it. > > The only argument that I can come up with is "we do not break userspace". > For example there is this "gem" in configure.ac of valgrind: > > > case "${kernel}" in > 2.6.*|3.*) > AC_MSG_RESULT([2.6.x/3.x family (${kernel})]) > AC_DEFINE([KERNEL_2_6], 1, [Define to 1 if you're using Linux 2.6.x or Linux 3.x]) > ;; > > 2.4.*) > AC_MSG_RESULT([2.4 family (${kernel})]) > AC_DEFINE([KERNEL_2_4], 1, [Define to 1 if you're using Linux 2.4.x]) > ;; > > *) > AC_MSG_RESULT([unsupported (${kernel})]) > AC_MSG_ERROR([Valgrind works on kernels 2.4, 2.6]) > ;; Heh, if this is an argument, we have one hell of a lot of reverting to do :) Crash for example breaks at much higher resolution, and indeed just broke yet again. Tough titty for userspace methinks. -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/