Received: by 2002:a05:6a10:2785:0:0:0:0 with SMTP id ia5csp478272pxb; Wed, 13 Jan 2021 08:11:01 -0800 (PST) X-Google-Smtp-Source: ABdhPJwVQZ9w/SJ8VGkxIrLWe4XuyuTyCThsgcG3si8t5J9EtJHatC+s8+xTeU8YeLKOSRUfq1jr X-Received: by 2002:a17:906:3a55:: with SMTP id a21mr2142242ejf.516.1610554260984; Wed, 13 Jan 2021 08:11:00 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1610554260; cv=none; d=google.com; s=arc-20160816; b=emW27ZxZj0qSLicjQCI7fNCjEpZL2rA+u8C5ki0arz++BNChmpFMZi0pwbroQsXeMb oRF2zPm0ZnDaYB/FiXZz8nIXUBUfB7aufT7XrCEAIm0IUVCOYkE3HknFQ9Ju5tmef04m qy+n/6ustwD7kiqRUjX64bC7X9eITjErqzEsedZZ0mRGntIs0E9IgCjSmnq7Vy+fPAtB 90aq0yrBZhIU/aU5XXADGiPEbt7YSyCnC1oTpD4J02vjsWJNlKf8q1KRLKuXQKvoH5Un nkPI04AJ9qoDE43A5wE29RA5qH12e2qJ1GHdZ/0q/6iQlGEoqKf4kfhDMt8gxTq1HuUD yWJQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=+mCpyQirq/+b1cyuKY3f5hJjMfYO7UN5Tts3HxG4WzM=; b=OROADTA2fMi2Y5KBeMgHrUk+5KIjnZktnF3Ls8XE7RT3RFPhYZnk3iDEal8fH6Mzmt ihqVX+qBwQmg8iOQYU1kgnK5U5XqZW/FMtkJn+DUEPmrVx93XmCZC0pfTKAuR7b7bcga NGzQ7n3apWxNWcaOGr6p+/G/9RnfMXNvV3e88jaPwReYOnfNyC1ia1MYOzLptQXjx2tv +R8ruL/kv320spSQeOSQ34KoMhj+bqpN0kIpAHjywiNQ39WjEc0DqIMX4HKBbF2N41Aq jrcyOMdhzcHmJ7PwT8/AcTHKyzYqzZNn8wjATYwzHWoMJnn9zKpr6If727f806+Z211g Vadw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=arm.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id l14si1372587edv.597.2021.01.13.08.10.35; Wed, 13 Jan 2021 08:11:00 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=arm.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727716AbhAMQIY (ORCPT + 99 others); Wed, 13 Jan 2021 11:08:24 -0500 Received: from mail.kernel.org ([198.145.29.99]:40494 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727707AbhAMQIX (ORCPT ); Wed, 13 Jan 2021 11:08:23 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4580423434; Wed, 13 Jan 2021 16:07:40 +0000 (UTC) From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org, Will Deacon Cc: Arnd Bergmann , Russell King , Linus Torvalds , Nick Desaulniers , Theodore Ts'o , kernel-team@android.com, linux-kernel@vger.kernel.org, Peter Zijlstra , Florian Weimer Subject: Re: [PATCH] compiler.h: Raise minimum version of GCC to 5.1 for arm64 Date: Wed, 13 Jan 2021 16:07:38 +0000 Message-Id: <161055398865.21762.12236232732054213928.b4-ty@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210112224832.10980-1-will@kernel.org> References: <20210112224832.10980-1-will@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 12 Jan 2021 22:48:32 +0000, Will Deacon wrote: > GCC versions >= 4.9 and < 5.1 have been shown to emit memory references > beyond the stack pointer, resulting in memory corruption if an interrupt > is taken after the stack pointer has been adjusted but before the > reference has been executed. This leads to subtle, infrequent data > corruption such as the EXT4 problems reported by Russell King at the > link below. > > [...] Applied to arm64 (for-next/fixes), thanks! [1/1] compiler.h: Raise minimum version of GCC to 5.1 for arm64 https://git.kernel.org/arm64/c/1f1244a5ddb7 -- Catalin