Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 647EDC433F5 for ; Fri, 7 Jan 2022 10:59:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346889AbiAGK7N (ORCPT ); Fri, 7 Jan 2022 05:59:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53100 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346878AbiAGK7M (ORCPT ); Fri, 7 Jan 2022 05:59:12 -0500 Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [IPv6:2a01:488:42:1000:50ed:8234::]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3EB82C061245 for ; Fri, 7 Jan 2022 02:59:12 -0800 (PST) Received: from [77.23.61.2] (helo=[192.168.66.200]); authenticated by wp530.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) id 1n5mxe-0005hj-CU; Fri, 07 Jan 2022 11:59:06 +0100 Message-ID: <7cd73147-2170-a0cd-c64e-ded4bef645b0@leemhuis.info> Date: Fri, 7 Jan 2022 11:59:05 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 Content-Language: en-BS From: Thorsten Leemhuis To: Linus Torvalds , "regressions@lists.linux.dev" Cc: Song Liu , Jens Axboe , wsa@kernel.org, Mario Limonciello , Alex Deucher , =?UTF-8?Q?Christian_K=c3=b6nig?= , "Pan, Xinhui" , Linux Kernel Mailing List Subject: Special regressions report for the pending 5.16 release Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-bounce-key: webpack.hosteurope.de;linux@leemhuis.info;1641553152;8e5e8aa0; X-HE-SMSGID: 1n5mxe-0005hj-CU Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Linus, a quick brief manual regressions report, as I assume you'll likely release 5.16 soon and thus might find this helpful. Below is a list of remaining regressions in 5.16-rc I'm currently aware of. regressions where a fix exists ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * This fix afaics is not yet mainlined: [PATCH] md/raid1: fix missing bitmap update w/o WriteMostly devices https://lore.kernel.org/all/20220103230401.180704-1-song@kernel.org/ But I'm pretty sure Jens (CCed) will send it onwards soon: https://lore.kernel.org/all/499b185d-ff9a-934e-7768-ec796244fa1a@kernel.dk/ * There is an open regression "Applications that need amdgpu doesn't run after waking up from suspend": https://lore.kernel.org/all/1295184560.182511.1639075777725@mail.yahoo.com/ Wolfram (CCed) plans to revert a i2c commit to fix it, but I'm not sure if he plans to send in onwards for 5.16 (or if that would be a good idea at all): https://lore.kernel.org/lkml/20220106122452.18719-1-wsa@kernel.org/ * There are suspend and resume problems related to amdgpu: https://bugzilla.kernel.org/show_bug.cgi?id=215436 Mario (CCed) recently found the root cause and came up with a fix, but it likely needs a little more time to bake: https://lore.kernel.org/all/BL1PR12MB5157F21C23A020052FF5C13BE24C9@BL1PR12MB5157.namprd12.prod.outlook.com/ https://lore.kernel.org/all/20220106163054.13781-3-mario.limonciello@amd.com/ no fix in sight ~~~~~~~~~~~~~~~ * screen contents do get restored after some input events (so it doesn't stay blank). https://bugzilla.kernel.org/show_bug.cgi?id=215203 (related: https://gitlab.freedesktop.org/drm/amd/-/issues/1840 ) Alex (CCed) is trying hard to find a fix for, but afaics needs more time. Need more time to analyse ~~~~~~~~~~~~~~~~~~~~~~~~~ I'm aware of two more reports that afaics need (a lot?) more time to analyse: * suspend issues for a user that faces another regression that might interfer: https://lore.kernel.org/linux-pm/256689953.114854578.1640622738334.JavaMail.root@zimbra40-e7.priv.proxad.net/ https://bugzilla.kernel.org/show_bug.cgi?id=215427 * 5-10% increase in IO latencies with nohz balance patch https://lore.kernel.org/lkml/YaUH5GFFoLiS4%2F3%2F@localhost.localdomain/ Closing words ~~~~~~~~~~~~~ HTH, ciao, Thorsten