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=-5.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 4BF2BC433E2 for ; Tue, 15 Sep 2020 10:11:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E4F5321D95 for ; Tue, 15 Sep 2020 10:11:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=web.de header.i=@web.de header.b="mo2oBME0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726315AbgIOKLz (ORCPT ); Tue, 15 Sep 2020 06:11:55 -0400 Received: from mout.web.de ([217.72.192.78]:55627 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726119AbgIOKLs (ORCPT ); Tue, 15 Sep 2020 06:11:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1600164700; bh=UogIhfq9qNNjo/T+q6FmRMfIDnT2whLvdoBDxqlHAEs=; h=X-UI-Sender-Class:To:From:Subject:Date; b=mo2oBME0u5fne9FEa4B5xkFugDV6prx2KU5zNkWvyvOU8C7Qprr54aO/xUbJyf3nd ITGswlFR08pV9NGLLVdWtm6032Xpe6eiVyFz5fqZOsAYQWjqgPHl238P6KFgQxKBtM x1EXFG2DztgDdKiCStTJ/tOxE+8Py71F+/quAsTI= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.3.160] ([91.64.89.12]) by smtp.web.de (mrweb102 [213.165.67.124]) with ESMTPSA (Nemesis) id 0Lc8c5-1kjniw49q9-00jZs1; Tue, 15 Sep 2020 12:11:40 +0200 To: linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, David Airlie , Chris Wilson From: Dirk Neukirchen Subject: Haswell Regression in 5.9-rcX and lower 5.7.x, 5.8.x #2024 - Revert 47f8253d2b89 ("drm/i915/gen7: Clear all EU/L3 residual contexts") ? Message-ID: Date: Tue, 15 Sep 2020 12:10:26 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US-large Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:q1PcOu+oSzo73KlR10JHwU4DZPm6zwsG9wzPFGol2UjC9PqS7YP PVUfiJNrmkAoHZ0YDTdE8OuMsPwCKuHQZFM5HgYoL640C6VGWbH9MEmnvTOdvUs1VTfgX5/ RxcREQgi/m2yaeEM430y2aSTJlm9kSsU/wJyGV4yXPIIe9wqBm8CP2BbFy9MpQ8vqKIaQ4x fuF+/VWm6JjWgUh8YvkBw== X-UI-Out-Filterresults: notjunk:1;V03:K0:JlVRHei2pwk=:EX3Y/fSRQzFBWWx51DGjOn ExUUxDL6tGkjSiuh7N332LRTNnPXtkyfAkxlM0UtUMRJodKTQ937gfNLdDNh2U4TpIut+ffUa Ar4J51GD96pdC88I/5UCAj/nwDtjoabDj4bG+WtZjIVfGzHRXeMiwjzc/ag1hEVWbaFilgdea 7AQfAcxq6l4lrkXBnCTzwg4sP9aQlZLEgYbYpTq00B4Ij0cjgbMjpgvgRevKHMCJy9viS3WdE ToML53KYd+ogjkHkMVk5WBZAPZ+5z1E7CMtuA+DiVCCNvxrL9NCH5hrGSX/Lr/wEm4aAkhnKi 8xAfn2LuuO9Ec068hAeXWfppmDNAUfMHhShVXJmHQndvCUcfA3mztVUZJh/llxMCqVt73rvTv AqtqhIuzECac0I8VYSM8PZdC4JFnqOrC3u3NNQ1sL0RPBaEbNxFBmRCXBqZ3PjIPgJudQRAsP dk3fdMDfs3vexiU8S86IalnbTssGDHv6Xkf5lsW+FQ+qrMZLY68VSCGG16C0qaWjkLpifq9cI KHaFWUg2iw14Fo9j3qmMDNjSyNLV7mtqYKxbHc8yOie+mqy4kzBclzrtNw9GhTnbWzWHc8ZBX 08tO8WIU0VuDfYR1tOb8o6ooCAsgAFC3U/ZiymcN3AHCQsn/MwXd6ELQOKgNFT8Jm0Fm0If5A 3gHMQvtmbsl7u9A7wiI937ZmgHquhGHbzkKarW8J/7xyzBLtU1aC/vi4W5CDuxNvattU1NdQS 7O4HgEsiV3+ZF1LUqT0ox/886IbF/jPsmIT79uEeyFhIm0X8sUUdHi/UxrmcU47C1IOyes2eO SV56de1Dx3DzNYqyioYUeiMkGSLI0WnR3CCsUumamwUuPLO5uR6235vjwAlAPXfrSwMYc04i9 Ex/r2Mq23KNHPmMajldlkVP8BjrBAWrXUUoYtNwStzcOUSNmq292Tr6eO7gXc0dz92F12vK5z opMyOmrqFu8QrAY//kgBPZgxJvDA16/yJwAFx7I5Qzp/sR8ygxWzxGXqw5sDvAEexThkjoh1M 5oC4jNvJHPHqDgyoHdRbyvN8Vk8xVDhB1B/u2E7j/uPtP1ihKnFTj2vtt3ZE1zJwH85MmFeQs JcfjKh8jmXISflxR5jt3ZD4sbN7z+GW4hn0azo8i2UGLTsxkvvlJBOQQ3+NmhEmso7Ej78zEn HvvgoofQUtFiFvBx8eM0nt7/shO9kiw6oP5gLJCsaY+rdPit8/GQ5uGf/wdRldQQxfT2X3cGm D+itlaKc41QT79ouhSI9oaA14ZrjhF13FuQCxsA== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi David, Chris and lists I am inquiring about the current status of #2024 [1] Problem: Kernels 5.7.x , 5.8.x, current 5.9-rcs and drm-tip have a large r= egression on (some?) Haswell (HSW) This is verified by _multiple people_ using different methods. All his is documented in [1] , Kernel 5.6.19 was fine Result: no output, no usable desktop due to gpu crashes Hardware : 2x Acer C720 Chromebooks and potentially others Methods: - running mpv with vaapi enabled - glxgears - automatic desktop environment start (probably with acceleration) There is atm no fix in drm-tip integrated (5.9.0_rc5bisect_g30b3e38bd6d5 f= or example still errors) and no activity from Intel in the bug report beside the "working" suggest= ed patches / hacks there There should be enough bisection info an there. Nobody asked there to get more info or different bisects/trees. So - the ticket is still open. Because Fedora uses newish Kernels I would like to use it "normally" witho= ut going for 5.4 LTS or waiting an unknown amount of time - as 5.9.x currentl= y seems to have the same regression. Affected Hardware at my end: - C720 with a Intel Celeron 2955U - UEFI Bios instead of original Bios (mrchromebox.tech) if thats relevant = for hardware init related bugs; But the Kernel should take care of the correct initialization anyway Feel free to comment which trees, branches, tags or patches we should try = to help and what _more_ to report for "Report-By" , "Tested-By", "Verified-By" tagging so that [1] can be closed. Greetings, Dirk [1]https://gitlab.freedesktop.org/drm/intel/-/issues/2024