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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 B6152C433DF for ; Thu, 14 May 2020 10:08:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9B408206B6 for ; Thu, 14 May 2020 10:08:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726113AbgENKIe (ORCPT ); Thu, 14 May 2020 06:08:34 -0400 Received: from outpost1.zedat.fu-berlin.de ([130.133.4.66]:39853 "EHLO outpost1.zedat.fu-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725925AbgENKIe (ORCPT ); Thu, 14 May 2020 06:08:34 -0400 Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost.zedat.fu-berlin.de (Exim 4.93) with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (envelope-from ) id 1jZAmy-003Ewj-La; Thu, 14 May 2020 12:08:28 +0200 Received: from p5b13a426.dip0.t-ipconnect.de ([91.19.164.38] helo=[192.168.178.139]) by inpost2.zedat.fu-berlin.de (Exim 4.93) with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (envelope-from ) id 1jZAmy-002NqO-De; Thu, 14 May 2020 12:08:28 +0200 Subject: Re: [PATCH] ia64: enable HAVE_COPY_THREAD_TLS, switch to kernel_clone_args To: Christian Brauner Cc: "Luck, Tony" , "Yu, Fenghua" , "linux-ia64@vger.kernel.org" , Al Viro , Arnd Bergmann , Thomas Gleixner , Ingo Molnar , Sebastian Andrzej Siewior , "Peter Zijlstra (Intel)" , Qais Yousef , "linux-kernel@vger.kernel.org" References: <20200513204848.1208864-1-christian.brauner@ubuntu.com> <3908561D78D1C84285E8C5FCA982C28F7F6266E0@ORSMSX115.amr.corp.intel.com> <79e58d9b-5a39-390c-2f0c-0d87b63442b4@physik.fu-berlin.de> <20200514074606.vkc35syhdep23rzh@wittgenstein> <6b298416-1e64-eee7-0bb4-3b1f7f67adc6@physik.fu-berlin.de> <20200514100459.pt7dxq2faghdds2c@wittgenstein> From: John Paul Adrian Glaubitz Autocrypt: addr=glaubitz@physik.fu-berlin.de; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: <20200514100459.pt7dxq2faghdds2c@wittgenstein> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Original-Sender: glaubitz@physik.fu-berlin.de X-Originating-IP: 91.19.164.38 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/14/20 12:04 PM, Christian Brauner wrote: > So that's interesting because systemd doesn't support itanium correctly afaict. > They have a raw_clone() function that they use which is not tailored to > ia64. __NR_clone should be defined as so to hit clone2() but they don't > pass a stack size argument down which is invalid on ia64: Ah, I wasn't aware of this limitation. I'm surprised the systemd testsuite passes then on ia64. On sparc64, Michael Karcher provided the hand-written assembly you quoted to fix the raw_clone() on this architecture. I assume we could do the same on ia64? Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@debian.org `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913 From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Paul Adrian Glaubitz Date: Thu, 14 May 2020 10:08:27 +0000 Subject: Re: [PATCH] ia64: enable HAVE_COPY_THREAD_TLS, switch to kernel_clone_args Message-Id: <2e22b0d2-b9ce-420d-48a0-0d9134108a5c@physik.fu-berlin.de> List-Id: References: <20200513204848.1208864-1-christian.brauner@ubuntu.com> <3908561D78D1C84285E8C5FCA982C28F7F6266E0@ORSMSX115.amr.corp.intel.com> <79e58d9b-5a39-390c-2f0c-0d87b63442b4@physik.fu-berlin.de> <20200514074606.vkc35syhdep23rzh@wittgenstein> <6b298416-1e64-eee7-0bb4-3b1f7f67adc6@physik.fu-berlin.de> <20200514100459.pt7dxq2faghdds2c@wittgenstein> In-Reply-To: <20200514100459.pt7dxq2faghdds2c@wittgenstein> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Christian Brauner Cc: "Luck, Tony" , "Yu, Fenghua" , "linux-ia64@vger.kernel.org" , Al Viro , Arnd Bergmann , Thomas Gleixner , Ingo Molnar , Sebastian Andrzej Siewior , "Peter Zijlstra (Intel)" , Qais Yousef , "linux-kernel@vger.kernel.org" On 5/14/20 12:04 PM, Christian Brauner wrote: > So that's interesting because systemd doesn't support itanium correctly afaict. > They have a raw_clone() function that they use which is not tailored to > ia64. __NR_clone should be defined as so to hit clone2() but they don't > pass a stack size argument down which is invalid on ia64: Ah, I wasn't aware of this limitation. I'm surprised the systemd testsuite passes then on ia64. On sparc64, Michael Karcher provided the hand-written assembly you quoted to fix the raw_clone() on this architecture. I assume we could do the same on ia64? Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@debian.org `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913