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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 B5EB9C282C0 for ; Fri, 25 Jan 2019 06:51:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8B259218D9 for ; Fri, 25 Jan 2019 06:51:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727035AbfAYGvQ (ORCPT ); Fri, 25 Jan 2019 01:51:16 -0500 Received: from mgwym04.jp.fujitsu.com ([211.128.242.43]:60493 "EHLO mgwym04.jp.fujitsu.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726021AbfAYGvQ (ORCPT ); Fri, 25 Jan 2019 01:51:16 -0500 Received: from yt-mxoi2.gw.nic.fujitsu.com (unknown [192.168.229.69]) by mgwym04.jp.fujitsu.com with smtp id 15be_1ecd_8d28b7d9_ce94_40fc_8396_706fe2d132de; Fri, 25 Jan 2019 15:51:12 +0900 Received: from g01jpfmpwkw03.exch.g01.fujitsu.local (g01jpfmpwkw03.exch.g01.fujitsu.local [10.0.193.57]) by yt-mxoi2.gw.nic.fujitsu.com (Postfix) with ESMTP id 6A1DEAC01AA for ; Fri, 25 Jan 2019 15:51:11 +0900 (JST) Received: from G01JPEXCHKW14.g01.fujitsu.local (G01JPEXCHKW14.g01.fujitsu.local [10.0.194.53]) by g01jpfmpwkw03.exch.g01.fujitsu.local (Postfix) with ESMTP id D60AEBD6795; Fri, 25 Jan 2019 15:51:09 +0900 (JST) Received: from G01JPEXMBKW03.g01.fujitsu.local ([10.0.194.67]) by g01jpexchkw14 ([10.0.194.53]) with mapi id 14.03.0415.000; Fri, 25 Jan 2019 15:51:09 +0900 From: "Zhang, Lei" To: "Zhang, Lei" , 'Mark Rutland' , "'james.morse@arm.com'" CC: "'catalin.marinas@arm.com'" , "'will.deacon@arm.com'" , "'linux-kernel@vger.kernel.org'" , "'linux-arm-kernel@lists.infradead.org'" Subject: RE: [PATCH] arm64 memory accesses may cause undefined fault on Fujitsu-A64FX Thread-Topic: [PATCH] arm64 memory accesses may cause undefined fault on Fujitsu-A64FX Thread-Index: AdSvK6W0/Nm6810RQFa/OOuw1JbhXP//gw+A//n57fCADGG/gP/+BGiA//lIR1A= Date: Fri, 25 Jan 2019 06:51:08 +0000 Message-ID: <8898674D84E3B24BA3A2D289B872026A6A2A6045@G01JPEXMBKW03> References: <8898674D84E3B24BA3A2D289B872026A6A29FA8F@G01JPEXMBKW03> <20190118141758.GC12256@lakrids.cambridge.arm.com> <8898674D84E3B24BA3A2D289B872026A6A2A2F44@G01JPEXMBKW03> <20190122152339.GD52887@lakrids.cambridge.arm.com> <8898674D84E3B24BA3A2D289B872026A6A2A3BED@G01JPEXMBKW03> In-Reply-To: <8898674D84E3B24BA3A2D289B872026A6A2A3BED@G01JPEXMBKW03> Accept-Language: ja-JP, en-US Content-Language: ja-JP X-MS-Has-Attach: X-MS-TNEF-Correlator: x-securitypolicycheck: OK by SHieldMailChecker v2.2.3 x-shieldmailcheckerpolicyversion: FJ-ISEC-20140219 x-originating-ip: [10.18.70.198] Content-Type: text/plain; charset="iso-2022-jp" MIME-Version: 1.0 X-SecurityPolicyCheck-GC: OK by FENCE-Mail X-TM-AS-MML: disable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Mark, James > -----Original Message----- > From: linux-arm-kernel > [mailto:linux-arm-kernel-bounces@lists.infradead.org] On Behalf Of > Zhang, Lei > Sent: Wednesday, January 23, 2019 9:51 PM > To: 'Mark Rutland'; 'james.morse@arm.com' > Cc: 'catalin.marinas@arm.com'; 'will.deacon@arm.com'; > 'linux-kernel@vger.kernel.org'; > 'linux-arm-kernel@lists.infradead.org'; Zhang, Lei/張 雷 > Subject: RE: [PATCH] arm64 memory accesses may cause undefined fault on > Fujitsu-A64FX > > At first thanks for your comments. > I thinks James's comments is quite similar with above comment. > I am reviewing this point now. > I will respond to your questions after I check this. As your comments, this patch cannot avoid this problem completely. So I will post a new patch to resolve this problem in different way. Lei Zhang zhang.lei@jp.fujitsu.com