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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 24858C433FE for ; Wed, 12 Oct 2022 16:00:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230029AbiJLQAH (ORCPT ); Wed, 12 Oct 2022 12:00:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39086 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229620AbiJLQAA (ORCPT ); Wed, 12 Oct 2022 12:00:00 -0400 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 53A341A83A; Wed, 12 Oct 2022 08:59:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1665590397; x=1697126397; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=x+Vvi8HGhrn79pVpDuauzqv2LPYrdQbCpKoSgkWyCaQ=; b=N7H43qoXTLbxJSfPjHM4NCPeS1rlSqKT03ZpBOZfCc1HCUKHpvN2S7Lc /LWM+V7kffocXoUn8fZCkc0Z7cVyGwDk/Qmaal8Bqzu04A3nbtWoinE6P 69fKUtdPsCQA6HW+mZJa17pRGrRd3fUTd+w0ZgxhPDX0PxFXkjyKwO86+ V3kK5xp/YaluMUOKgQcpyz1jxamEzBO0mqSyx6ybe7FnAYp3w9cvJ1S/Z 63o7Kad+a/GYCNvcEdllfimxNhzEr5FA95UOHelCKBzmqmvyilpYSImZx yz98Lw1AdjlaJFeIZ6hcwx2bnHKijetXcPTFBoa2eOwoNU8cSozsmEXUS Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10498"; a="304818430" X-IronPort-AV: E=Sophos;i="5.95,179,1661842800"; d="scan'208";a="304818430" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2022 08:59:56 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10498"; a="695522374" X-IronPort-AV: E=Sophos;i="5.95,179,1661842800"; d="scan'208";a="695522374" Received: from mpatter1-mobl.amr.corp.intel.com (HELO [10.209.53.34]) ([10.209.53.34]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2022 08:59:51 -0700 Message-ID: Date: Wed, 12 Oct 2022 08:59:51 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH v2 01/39] Documentation/x86: Add CET description Content-Language: en-US To: Florian Weimer , "Edgecombe, Rick P" Cc: "bsingharora@gmail.com" , "hpa@zytor.com" , "Syromiatnikov, Eugene" , "peterz@infradead.org" , "rdunlap@infradead.org" , "keescook@chromium.org" , "Yu, Yu-cheng" , "dave.hansen@linux.intel.com" , "kirill.shutemov@linux.intel.com" , "Eranian, Stephane" , "linux-mm@kvack.org" , "nadav.amit@gmail.com" , "jannh@google.com" , "dethoma@microsoft.com" , "linux-arch@vger.kernel.org" , "kcc@google.com" , "bp@alien8.de" , "oleg@redhat.com" , "hjl.tools@gmail.com" , "Yang, Weijiang" , "Lutomirski, Andy" , "pavel@ucw.cz" , "arnd@arndb.de" , "Moreira, Joao" , "tglx@linutronix.de" , "mike.kravetz@oracle.com" , "x86@kernel.org" , "linux-doc@vger.kernel.org" , "jamorris@linux.microsoft.com" , "john.allen@amd.com" , "rppt@kernel.org" , "mingo@redhat.com" , "Shankar, Ravi V" , "corbet@lwn.net" , "linux-kernel@vger.kernel.org" , "linux-api@vger.kernel.org" , "gorcunov@gmail.com" References: <20220929222936.14584-1-rick.p.edgecombe@intel.com> <20220929222936.14584-2-rick.p.edgecombe@intel.com> <87ilkr27nv.fsf@oldenburg.str.redhat.com> <62481017bc02b35587dd520ed446a011641aa390.camel@intel.com> <87v8opz0me.fsf@oldenburg.str.redhat.com> From: Dave Hansen In-Reply-To: <87v8opz0me.fsf@oldenburg.str.redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org On 10/12/22 05:29, Florian Weimer wrote: >> What did you think of the proposal to disable existing binaries and >> start from scratch? Elaborated in the coverletter in the section >> "Compatibility of Existing Binaries/Enabling Interface". > The ABI was finalized around four years ago, and we have shipped several > Fedora and Red Hat Enterprise Linux versions with it. Other > distributions did as well. It's a bit late to make changes now, and > certainly not for such trivialities. Just to be clear: You're saying that a user/kernel ABI was "finalized" by glibc shipping the user side of it, before there being an upstream kernel implementation?