Received: by 2002:a17:90a:8504:0:0:0:0 with SMTP id l4csp4858557pjn; Tue, 29 Oct 2019 08:43:36 -0700 (PDT) X-Google-Smtp-Source: APXvYqxQuKdC1sjWybGwTjXM3dlQ5cfU9sVv1Y2ztaHccjdilFNVfn2MMjcxpDspuAmVE5oYYo1a X-Received: by 2002:aa7:c645:: with SMTP id z5mr13924412edr.204.1572363816473; Tue, 29 Oct 2019 08:43:36 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1572363816; cv=none; d=google.com; s=arc-20160816; b=fk6VUvuEpWSpI2+UtVjn01FWZIlq8udu9CUY2ouOKiO0kd0ODS8QhIJJL7yAN0HvMm ZlaWuMA6PAHAFSFXln99BovnB+Gyfs2pQ4Sdln6kUcmU/CDB0NC+srIfo8wV+JzucbhT JMbP57tmRkn5FkdfoGWIGv1MUJA45Wgz3jfUQczlE6N/XbMs60QzSc/4MnNWvCRamijp jwkcMyzTi+4kKgf3B4zr74hBieCcSb6UUcmv1YsBMcszoXBGG+1ZUwkkGQJDl9j4yCcM dTk+QqJa4ZOCo/GbPpbAGheFGiMOyuUfPLsR4ppoJ4cGBT1FPiuTDK8/HWkVWXr235Op 3SOQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=53+GjZs6uGnK/ynJngbcTyXrln0bvCdENE/yc0CQA0M=; b=0LX5m14pkWp51wEFwJxzjlCrpTfDahYNSWLZjX62Zldj0yQ5gvalNZmZV9eg9Cdyyp le7JC2nlqVbk6Klqh1ajIenYpc7ZO4J0ysA2HzJWfmIqYC8ctjeHiqZAPwr+7plwfyvl onzRB335B+ReDvAr11JRbtVINuTNI3hBYz7vGcySlDTxMFMC0vvhLxsjF3qMKt9qhtWj rZxHcpdyEj4brRyrFt/0SIc+Zvkedi6QMuIcy1m24TID/MgCgLGqa0qMpzXY54SXb9/f q/JBQLmFwi8aOggk43XDzHC4l8Q39OYtB1SqEbCn273EBb97HaoUFeKh7xy0sI2nO60n AlWQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id fx11si8661204ejb.302.2019.10.29.08.43.12; Tue, 29 Oct 2019 08:43:36 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390252AbfJ2Plk (ORCPT + 99 others); Tue, 29 Oct 2019 11:41:40 -0400 Received: from foss.arm.com ([217.140.110.172]:53556 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390107AbfJ2Plk (ORCPT ); Tue, 29 Oct 2019 11:41:40 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CD2A01F1; Tue, 29 Oct 2019 08:41:39 -0700 (PDT) Received: from arrakis.emea.arm.com (arrakis.cambridge.arm.com [10.1.197.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E49683F71F; Tue, 29 Oct 2019 08:41:38 -0700 (PDT) Date: Tue, 29 Oct 2019 15:41:36 +0000 From: Catalin Marinas To: Xiang Zheng Cc: will@kernel.org, james.morse@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, wanghaibin.wang@huawei.com Subject: Re: [PATCH v2] arm64: print additional fault message when executing non-exec memory Message-ID: <20191029154135.GD11440@arrakis.emea.arm.com> References: <20191029124131.32028-1-zhengxiang9@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191029124131.32028-1-zhengxiang9@huawei.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 29, 2019 at 08:41:31PM +0800, Xiang Zheng wrote: > When attempting to executing non-executable memory, the fault message > shows: > > Unable to handle kernel read from unreadable memory at virtual address > ffff802dac469000 > > This may confuse someone, so add a new fault message for instruction > abort. > > Signed-off-by: Xiang Zheng Queued for 5.5. Thanks. -- Catalin