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 344D8C46470 for ; Sun, 5 Aug 2018 18:33:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BFE5821885 for ; Sun, 5 Aug 2018 18:33:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BFE5821885 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726811AbeHEUii (ORCPT ); Sun, 5 Aug 2018 16:38:38 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:58394 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726484AbeHEUii (ORCPT ); Sun, 5 Aug 2018 16:38:38 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E5D5A819700D; Sun, 5 Aug 2018 18:33:10 +0000 (UTC) Received: from oldenburg.str.redhat.com (ovpn-116-24.ams2.redhat.com [10.36.116.24]) by smtp.corp.redhat.com (Postfix) with ESMTPS id F1D392026D69; Sun, 5 Aug 2018 18:33:07 +0000 (UTC) Subject: Re: framebuffer corruption due to overlapping stp instructions on arm64 To: Mikulas Patocka , Andrew Pinski Cc: Richard Earnshaw , ard.biesheuvel@linaro.org, Ramana Radhakrishnan , thomas.petazzoni@free-electrons.com, GNU C Library , Catalin Marinas , Will Deacon , linux@armlinux.org.uk, LKML , linux-arm-kernel@lists.infradead.org References: <9acdacdb-3bd5-b71a-3003-e48132ee1371@redhat.com> <11f9185a-7f71-83df-3a57-0a0ae9c1f934@arm.com> From: Florian Weimer Message-ID: Date: Sun, 5 Aug 2018 20:33:06 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.8]); Sun, 05 Aug 2018 18:33:11 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.8]); Sun, 05 Aug 2018 18:33:11 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'fweimer@redhat.com' RCPT:'' Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/04/2018 01:04 PM, Mikulas Patocka wrote: > There's plenty of memcpy's in the graphics stack. No one will be rewriting > all the graphics drivers because of tiny market share that ARM has in > desktop computers. So if you refuse to fix things and blame everyone else, > you can as well announce that you don't want to have PCIe graphics on ARM > at all. The POWER toolchain maintainers said pretty much the same thing not too long ago. I wonder how many architectures need to fail until the graphics stack is finally fixed. Thanks, Florian